A manufacturing device and method for double-layer soft-package hard enamel products

Abstract

The present invention provides a manufacturing device and a manufacturing method for a double-layer soft-package hard enamel product, which belongs to the field of medical education equipment and solves the problems that the existing enamel products are all single-layer products and have low manufacturing efficiency. The manufacturing device includes a base and two elevators. A rotating mechanism and an injection mechanism are provided at the upper end of the base. A lifting plate is provided between the two elevators. A rotating mechanism is provided between the lifting plate and the injection mechanism. A demolding mechanism, a heating box, a spray cooling box and a blowing cooling box are provided in sequence between the lifting plate and the base. Four hinged molds are provided on the rotating mechanism. The manufacturing method includes the following steps: raw material proportioning; primary loading; primary injection, secondary loading; heating and firing; primary cooling; secondary cooling; secondary feeding, re-loading; firing and cooling, product demolding; mold closing, and re-preparation. The present invention can efficiently perform injection, one-layer firing, primary cooling, secondary cooling, two-layer firing and finished product demolding in an assembly line.

Description

Technical Field

[0001] The invention belongs to the technical field of medical education equipment, and relates to a manufacturing device for a double-layer soft-coated hard enamel product, in particular to a manufacturing method for a double-layer soft-coated hard enamel product. Background Art

[0002] Vinyl is a common process for producing hollow plastic products. Traditional PVC vinyl products are mostly single hard plastic or soft leather, with a hardness between 20 and 95 degrees. Vinyl products with a single hardness cannot effectively simulate the feel of the human body. Especially in medical models that need to simulate skin texture and soft organs such as ears and noses, traditional processes cannot achieve a good touch. Therefore, we designed a double-layer soft-package hard vinyl product to meet a better touch. In addition, the existing vinyl production equipment cannot efficiently produce double-layer soft-package hard vinyl products, and the process production efficiency is low.

[0003] Based on this, we propose a manufacturing device and a manufacturing method for double-layer soft-package hard enamel products. Summary of the invention

[0004] The purpose of the present invention is to address the above-mentioned problems in the existing technology and to propose a double-layer soft-package hard enamel product manufacturing equipment and a manufacturing method. The technical problem to be solved by the invention is: how to achieve efficient assembly line injection, one-layer firing, one-time cooling, two-layer cooling, two-layer firing and finished product demoulding.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A manufacturing device for double-layer soft-package hard enamel products comprises a base and two lifts symmetrically distributed on both sides of the base, a rotating mechanism and an injection mechanism are arranged at the upper end of the base, the injection mechanism is directly opposite to the rotating mechanism, a lifting plate is arranged between the two lifts, the lifting plate is located above the rotating mechanism, a rotating mechanism is arranged between the lifting plate and the rotating mechanism, a demoulding mechanism, a heating box, a spray cooling box and a blowing cooling box which are distributed in a circle with the center of the rotating mechanism as the center are arranged between the lifting plate and the base in sequence, four hinged molds are arranged on the rotating mechanism, the four hinged molds are respectively located above the demoulding mechanism, the heating box, the spray cooling box and the blowing cooling box, and the demoulding mechanism is located between the injection mechanism and the rotating mechanism, a water filter is arranged on the side of the spray cooling box, and the water filter is respectively connected to the spray cooling box and the heating box through pipelines.

[0007] The working principle of the present invention is as follows: Step 1, raw material ratio: PVC soft glue and hard glue materials are ratioed, suitable plastic powder and steam softening oil are selected to prepare soft glue slurry and hard glue slurry, and pigments are added as needed;

[0008] Step 2: one-time loading: quantitatively inject the soft glue slurry into the injection mechanism;

[0009] Step 3, one injection, two loading: the injection mechanism injects the soft glue slurry into the hinge mold, and at the same time, the hard glue slurry is quantitatively injected into the injection mechanism. The hard glue slurry pushes out all the soft glue slurry to ensure that all the soft glue slurry is injected into the hinge mold. The loading amount must be accurate to ensure that the outer layer thickness of the product is uniform. During injection, the rotating mechanism does not work;

[0010] Step 4, heating and firing: two elevators drive the lifting plate to rise, thereby driving the demoulding mechanism, heating box, spray cooling box and blowing cooling box installed on the lifting plate to rise, so as to avoid interference between the hinged mold and the demoulding mechanism, heating box, spray cooling box and blowing cooling box when rotating; the rotating mechanism drives the hinged mold to rotate and move it to the inside of the heating box, the two elevators drive the lifting plate to descend, the heating box is closed, and the rotating mechanism drives the four hinged molds to rotate at the same time, and rotates to heat and fire, adjusts the temperature and time, and fires the soft glue;

[0011] Step 5, one-time cooling: two elevators drive the lifting plate to rise to avoid interference, the rotating mechanism drives the hinged mold to rotate, and move it to the inside of the spray cooling box. The rotating mechanism drives the four hinged molds to rotate at the same time, and the rotating water cooling treatment is carried out to cool the fired hinged mold with soft glue by water;

[0012] Step 6, secondary cooling: two elevators drive the lifting plate to rise to avoid interference, the rotating mechanism drives the hinged mold to rotate, and move it to the inside of the air blowing and cooling box. The rotating mechanism drives the four hinged molds to rotate at the same time, and the rotating air cooling treatment is carried out to cool the fired hinged mold with soft glue by air;

[0013] Step 7, secondary feeding, re-loading: two elevators drive the lifting plate to rise to avoid interference, and the rotating mechanism drives the hinge mold to rotate and move it to face the injection mechanism; the injection mechanism injects the hard glue slurry into the hinge mold, and at the same time, the soft glue slurry is quantitatively injected into the injection mechanism to ensure that the hard glue slurry is fully injected into the hinge mold;

[0014] Step 8, firing and cooling, demoulding the product: after repeating steps 4 to 6, heating, firing, cooling once and cooling twice are repeated in sequence; the two elevators drive the lifting plate to rise to avoid interference, and the rotating mechanism drives the hinged mold to rotate and move to face the injection mechanism again, the hinged mold is turned over, and the parts of the demoulding mechanism move down to drive the hinged mold to open, and the fired double-layer product is demoulded;

[0015] Step nine, close the hinged mold and prepare again: close the hinged mold after the double-layer product is demoulded, and prepare the next double-layer product again; repeat steps one to eight.

[0016] The base is provided with a switch button and a counting sensor, the rotating mechanism comprises a cam divider, the cam divider is fixed on the base, and a mounting turntable is fixed on the output shaft of the cam divider.

[0017] With the above structure, the switch button is used to control the start and stop of the device, the counting sensor is used to count the number of products, and the output shaft of the cam divider drives the mounting turntable fixed thereon to rotate intermittently.

[0018] The rotating mechanism includes a mounting frame, a four-way commutator and four transmission bearing seats evenly distributed around the circumference, the four-way commutator is fixed at the middle of the upper end of the mounting turntable, four transmission bearing seats evenly distributed around the circumference are fixed at the upper end of the mounting turntable, a hexagonal column-shaped transmission shaft is fixed inside the transmission bearing seat, the mounting frame is fixed to the lower end of the lifting plate, a square column-shaped driving shaft is rotatably provided at the lower end of the mounting frame, a vertically arranged rotating motor is fixed to the upper end of the lifting plate, the output shaft of the rotating motor is transmission-connected with the driving shaft, and the driving shaft is slidably arranged inside the vertical input shaft at the upper end of the four-way commutator, and the four output shafts of the four-way commutator are transmission-connected with the inner end of the transmission shaft at the opposite position.

[0019] With the above structure, the two elevators drive the lifting plate to rise, thereby driving the driving shaft to rise. The driving shaft is slidably arranged inside the vertical input shaft at the upper end of the four-way commutator to ensure that the lifting process does not affect the rotation transmission of the driving shaft and the vertical input shaft at the upper end of the four-way commutator. The output shaft of the rotating motor drives the driving shaft to rotate, and the driving shaft drives the vertical input shaft at the upper end of the four-way commutator to rotate, thereby driving the four output shafts of the four-way commutator to rotate in the same direction at the same time.

[0020] The hinged mold includes a fixed mold, a locking block with a rectangular cross-section is fixed at the inner end of the fixed mold, the locking block is detachably connected to the outer end of the transmission shaft at the corresponding position, the side of the locking block is connected to the movable mold through a hinge, the movable mold has the same size as the fixed mold, a clamping block is fixed at the end of the movable mold, a tightening block is fixed at the inner outer end of the fixed mold, an injection hole is provided inside the tightening block, an injection tube with a rectangular cross-section is fixed to the outer side of the tightening block, the injection tube is connected to the injection hole, the size of the tightening block is the same as the inner size of the clamping block, a matching block is fixed at the outer end of the outer side of the fixed mold, the matching block has the same outer size as the clamping block, and the cross-section of the matching block and the clamping block after being assembled is rectangular.

[0021] The above structure is adopted, and a hinged mold of a human limb or head model is selected. The output shaft drives the locking block to rotate in the same direction at the same time, thereby driving the fixed mold to rotate, and then driving the movable mold to rotate through the hinge to perform rotational heating and rotational cooling. In the normal state and when the rotating mechanism drives the hinged mold to rotate and switch positions, the movable mold is located on the upper side and is engaged on the upper side of the fixed mold. The movable mold and the fixed mold form a molding cavity. When the hinged mold is demolded, it is flipped to a certain degree, the movable mold is located on the lower side, and the fixed mold is located on the upper side. The movable mold is unfolded through the hinge to output the products inside the fixed mold and the movable mold. The cross-section of the locking block is rectangular and the cross-section after the matching block and the engaging block are spliced ​​is rectangular, which is convenient for unfolding and disengaging the locking of the hinged mold.

[0022] The heating box assembly includes a heating bottom box and a heating top box. The heating bottom box is fixed at the upper end of the base, and the heating top box is fixed at the lower end of the lifting plate. A fan and a heating ventilation plate are arranged inside the heating bottom box, and the fan is located below the heating ventilation plate. A temperature display screen and a plurality of control knobs are arranged on the outer end face of the heating bottom box. Bottom box shape avoidance grooves matching the external shape dimensions of the hinged mold are arranged on the left and right sides of the upper end face of the heating bottom box, and top box matching protrusions matching the bottom box shape avoidance grooves are arranged on the left and right sides of the lower end face of the heating top box. The heating bottom box is connected to the air outlet of the water filter by a pipe, and the connection of the heating bottom box is located below the fan.

[0023] With the above structure, the fan of the heating box is sucked under negative pressure, and the hot air discharged from the air outlet of the air and the water filter is passed into the interior of the heating bottom box. After being heated by the heating ventilation plate, a high temperature is formed, and the hinged mold placed between the heating bottom box and the heating top box is heated and fired. The control knob controls the temperature and the air volume of the fan, and the temperature display screen displays the temperature, thereby controlling the heat of the heating bottom box and the heating top box. The bottom box outer shape avoidance groove that matches the external shape of the hinged mold is convenient for the hinged mold to be screwed in and out along the bottom box outer shape avoidance groove, and the top box matching protrusion that matches the bottom box outer shape avoidance groove. Ensure that the heating bottom box and the heating top box are locked and sealed, and the internal air pressure of the fan negative pressure suction water filter is reduced.

[0024] The spray cooling box comprises a spray cooling bottom box and a spray cooling top box. The spray cooling bottom box is fixed on the upper end of the base, the water filter is arranged on the side of the spray cooling top box, the spray cooling top box is fixed on the lower end of the lifting plate, a submersible pump is arranged inside the spray cooling bottom box, a spray pipe rack is arranged inside the spray cooling top box, the spray pipe rack and the water outlet end of the submersible pump are connected by a water pipe, a plurality of nozzles are arranged at the lower end of the spray pipe rack, an air outlet pipe connected thereto is arranged at the upper end of the spray cooling top box, the air outlet pipe is connected to the air inlet end of the water filter, the water outlet end of the water filter is connected to the spray cooling bottom box by a water pipe, the upper end face of the spray cooling bottom box is provided with a bottom box outer shape avoidance groove matching the external shape size of the hinged mold on the left and right sides, and the lower end face of the spray cooling top box is provided with a top box fitting protrusion matching the bottom box outer shape avoidance groove on the left and right sides.

[0025] With the above structure, the submersible pump draws clean water from the water outlet of the spray cooling bottom box into the spray pipe rack, and sprays it downward from a number of nozzles onto the hinged mold after heating and firing, and performs a water cooling on the hinged mold. This process will generate steam, which will be discharged through the air outlet pipe and enter the water filter to separate the water in the steam. The water will flow back to the spray cooling bottom box through the water outlet of the water filter, and the filtered high-temperature air will be passed into the interior of the heating bottom box. The bottom box external avoidance groove that matches the external shape of the hinged mold is convenient for the hinged mold to be screwed in and out along the bottom box external avoidance groove. The top box matching protrusion that matches the bottom box external avoidance groove ensures that the heating bottom box and the heating top box are locked and sealed. The water filter is set on the side of the spray cooling top box, and the water filter can be raised with the spray cooling top box to avoid interference.

[0026] The blowing and cooling box comprises a blowing and cooling bottom box and a blowing and cooling top seat. The blowing and cooling bottom box is fixed on the upper end of the base, the blowing and cooling top seat is fixed on the lower end of the lifting plate, a fan is arranged inside the blowing and cooling bottom box, and support seats are fixed on both inner and outer sides of the upper end of the blowing and cooling bottom box.

[0027] With the above structure, the fan of the air blowing and cooling box uses negative pressure to suck air, and blows the external air upward from the lower part of the air blowing and cooling bottom box, and blows it onto the hinged mold located between the two support seats of the air blowing and cooling bottom box and the air blowing and cooling top seat, so as to perform secondary air cooling on the hinged mold. The support seat facilitates the hinged mold to be screwed in and out.

[0028] The demoulding mechanism includes a demoulding top seat and four demoulding hydraulic rods arranged vertically upward. The demoulding top seat is fixed to the lower end of the lifting plate, and the four demoulding hydraulic rods are all fixed to the upper end of the base. A demoulding base is fixed to the output ends of the four demoulding hydraulic rods, and an inclined unloading guide plate is fixed to the demoulding base.

[0029] With the above structure, the hinged mold is placed between the demoulding top seat and the demoulding base, which is convenient for the hinged mold to rotate stably. When the hinged mold is screwed in and out, the demoulding top seat rises with the lifting plate. When the hinged mold is demoulded, the telescopic ends of the four demoulding hydraulic rods move downward, thereby pulling the demoulding base and the unloading guide plate above it to move downward, the hinged mold is unfolded, and the molded product inside the hinged mold is demoulded and falls on the unloading guide plate, rolling out along the unloading guide plate.

[0030] The outer side of the upper end of the heating bottom box, the outer side of the upper end of the spray cooling bottom box, the upper end of the outer support seat and the outer upper end of the demoulding base are all rotatably provided with a first rotating ring seat, and the upper end face of the first rotating ring seat abuts against the lower end face of the clamping block and the injection tube; the inner side of the upper end of the heating bottom box, the inner side of the upper end of the spray cooling bottom box, the upper end of the inner support seat and the inner upper end of the demoulding base are all rotatably provided with a second rotating ring seat, and the upper end face of the second rotating ring seat abuts against the lower end face of the locking block; the first rotating ring seat and the second rotating ring seat are both provided with a first limiting T-shaped ring on the outer circumferential surface, and the first limiting T-shaped ring is rotatably set at the corresponding positions of the heating bottom box, the spray cooling bottom box, the outer support seat and the demoulding base; the outer side of the lower end of the heating top box, the outer side of the lower end of the spray cooling top box, the blowing cooling The outer side of the lower end of the top seat and the outer lower end of the demoulding top seat are rotatably provided with a first rotating matching seat, the first rotating matching seat is engaged and abutted on the injection tube and the matching block, and the first rotating matching seat and the first rotating ring seat are assembled to form a first rotating seat assembly; the inner side of the lower end of the heating top box, the inner side of the lower end of the spray cooling top box, the inner side of the lower end of the blowing cooling top seat and the inner lower end of the demoulding top seat are rotatably provided with a second rotating matching seat, the second rotating matching seat is engaged and abutted on the locking block, and the second rotating matching seat and the second rotating ring seat are assembled to form a second rotating seat assembly; the outer circumferential surfaces of the first rotating matching seat and the second rotating matching seat are provided with a second limiting T-ring, and the second limiting T-ring is rotatably set at the corresponding positions of the heating top box, the spray cooling top box, the blowing cooling top seat and the demoulding top seat.

[0031] With the above structure, the upper end face of the first rotating ring seat abuts against the lower end face of the engaging block and the injection tube, the upper end face of the second rotating ring seat abuts against the lower end face of the locking block, the first rotating matching seat engages and abuts on the injection tube and the matching block, and the first rotating matching seat and the first rotating ring seat are spliced ​​to form a first rotating seat assembly, the second rotating matching seat engages and abuts on the locking block, and the second rotating matching seat and the second rotating ring seat are spliced ​​to form a second rotating seat assembly, the output shaft drives the locking blocks to rotate in the same direction at the same time, and when the hinged mold rotates, the first rotating matching seat and the first rotating ring seat are spliced ​​to form the first rotating seat assembly, and the second rotating matching seat and the second rotating ring seat are spliced ​​to form the second rotating seat assembly. The two rotating ring seats are assembled to form a second rotating seat assembly that rotates stably inside. The first rotating seat assembly rotates between the corresponding heating bottom box and the heating top box, between the spray cooling bottom box and the spray cooling top box, between the air blowing cooling top seat and the support seat, and between the demoulding top seat and the demoulding base, thereby ensuring the stable rotation of the hinged mold. The hinged mold stops rotating during the rotation switching process. At this time, the first rotating ring seat, the second rotating ring seat, the second rotating matching seat and the first rotating matching seat are all in the initial position to ensure the screwing in and out of the hinged mold. The first limiting T-ring and the second limiting T-ring ensure the stable rotation of the first rotating seat assembly and the second rotating seat assembly;

[0032] During demolding, the positions of the first rotating ring seat and the first rotating matching seat of the demolding mechanism are exchanged, and the positions of the second rotating ring seat and the second rotating matching seat are exchanged, that is, the hinged mold is flipped inside the demolding mechanism, and the telescopic ends of the four demolding hydraulic rods move downward, thereby pulling the demolding base and the unloading guide plate above it to move downward, the hinged mold is unfolded, and the molded product inside the hinged mold is demolded and falls onto the unloading guide plate, and rolls out along the unloading guide plate.

[0033] The injection mechanism includes a fixed seat, which is fixed on the upper end of the base, and a positioning hydraulic rod and a limiting sliding hole seat are fixed on the upper end of the fixed seat. The telescopic end of the positioning hydraulic rod slides and passes through the limiting sliding hole seat. A sliding seat is slidably provided on the upper end of the fixed seat, and a spiral injection machine is fixed on the upper end of the sliding seat. The telescopic end of the positioning hydraulic rod is fixedly connected to the rear side of the spiral injection machine, and the discharge end of the spiral injection machine is directly opposite to the injection pipe of the hinged mold located at the demoulding mechanism.

[0034] The above structure is adopted to proportion the PVC soft and hard rubber materials, and suitable plastic powder and steam softening oil are selected to configure the soft rubber slurry and hard rubber slurry, and pigments are added as needed. During the first loading, the soft rubber slurry is quantitatively injected into the spiral injection machine, and the telescopic end of the adjustment hydraulic rod is extended to drive the sliding seat to slide on the upper end of the fixed seat, so that the discharge end of the spiral injection machine contacts the injection pipe of the hinged mold located at the demoulding mechanism. During the first injection and the second loading, the spiral injection machine injects the internal soft rubber slurry into the hinged mold. While injecting the soft rubber slurry, the hard rubber slurry is quantitatively injected into the spiral injection machine, and the injection is continued to ensure that the hard rubber slurry squeezes out all the internal soft rubber slurry and injects it into the hinged mold.

[0035] A method for manufacturing a double-layer soft-package hard enamel product, comprising the following steps:

[0036] Step 1, raw material ratio: ratio the PVC soft rubber and hard rubber materials, select suitable plastic powder and steam softening oil to prepare soft rubber slurry and hard rubber slurry, and add pigments as needed;

[0037] Step 2: one-time loading: quantitatively inject the soft glue slurry into the injection mechanism;

[0038] Step 3, one-time injection and two-time loading: the injection mechanism injects the soft glue slurry into the hinge mold, and at the same time, the hard glue slurry is quantitatively injected into the injection mechanism to ensure that all the soft glue slurry is injected into the hinge mold;

[0039] Step 4: Heating and firing: The rotating mechanism drives the hinged mold to rotate 90 degrees and move it into the heating box. The rotating mechanism drives the four hinged molds to rotate at the same time, and the rotating heating and firing are performed. The temperature and time are adjusted to fire the soft glue.

[0040] Step 5, one-time cooling: the rotating mechanism drives the hinged mold to rotate 90 degrees and move it to the inside of the spray cooling box. The rotating mechanism drives the four hinged molds to rotate at the same time, and performs a rotating water cooling treatment to cool the fired mold with soft glue by water;

[0041] Step 6, secondary cooling: the rotating mechanism drives the hinged mold to rotate 90 degrees and move it to the inside of the air-blowing cooling box. The rotating mechanism drives the four hinged molds to rotate at the same time, and performs a rotating air-cooling cooling treatment to air-cool the fired mold with soft glue;

[0042] Step 7, secondary feeding, re-loading: the rotating mechanism drives the hinge mold to rotate 90 degrees and move it to face the injection mechanism; the injection mechanism injects the hard glue slurry into the hinge mold, and at the same time, the soft glue slurry is quantitatively injected into the injection mechanism to ensure that the hard glue slurry is fully injected into the hinge mold;

[0043] Step 8, firing and cooling, demoulding the product: after repeating steps 4 to 6, that is, heating and firing, cooling once and cooling twice are repeated in sequence; the rotating mechanism drives the hinged mold to rotate and move to face the injection mechanism again, the hinged mold opens, and the fired double-layer product is demoulded;

[0044] Step nine, close the hinged mold and prepare again: close the hinged mold after the double-layer product is demoulded, and prepare the next double-layer product again; repeat steps one to eight.

[0045] The formula of the hard glue slurry in step 1 is 4% plasticizer DINCH, 13% plasticizer, 2% hard oil D80, 2% phenol-free stabilizer, 2% heat-resistant oil K39, 43% polyvinyl chloride paste resin, 32% polyvinyl chloride resin, and 2% calcium stearate; the formula of the soft glue slurry is 58% plasticizer DINCH, 8% adipic acid polyester, 3% phenol-free stabilizer, 3% heat-resistant oil K39, and 28% polyvinyl chloride paste resin.

[0046] The firing temperature in step 4 is 250 degrees Celsius, the firing time is 800-900 seconds, the first cooling time in step 5 is 10-15 seconds, and the second cooling time in step 6 is 5-10 seconds;

[0047] The firing temperature in step eight is 250 degrees Celsius, the firing time is 1200-1500 seconds, the first cooling time in step eight is 10-15 seconds, and the second cooling time is 5-10 seconds;

[0048] The finished product in step eight has a hard glue inner layer of 70-80 degrees and a soft glue outer layer of 20-30 degrees.

[0049] Compared with the prior art, the manufacturing equipment of the double-layer soft-pack hard enamel products has the following advantages: the rotating mechanism cooperates with the rotating mechanism to drive the rotating mechanism to rotate horizontally and switch the workstations; the rotating mechanism drives the hinged mold to rotate, so as to realize the stable assembly line-style injection, heating and firing, primary cooling and secondary cooling and finished product demoulding; the two elevators cooperate with the lifting plate to facilitate the lifting and lowering of the heating top box, the spray cooling top box, the blowing cooling top seat and the demoulding top seat, so as to avoid interference when rotating and switching workstations; the heating box cooperates with the hinged mold to realize The hinged mould is now heated and fired at a high temperature with rotation, and the product thickness is uniform; the spray cooling box cooperates with the hinged mould to achieve a water cooling of the hinged mould, and the cooling is uniform; the air blowing cooling box cooperates with the hinged mould to achieve a secondary air cooling of the hinged mould, and the cooling is uniform; the demoulding mechanism cooperates with the hinged mould to achieve stable rotation, and the hinged mould is opened and closed, which is convenient for demoulding the fired double-layer product; the hinged mould cooperates with the injection mechanism to stably inject the slurry into the hinged mould, and the injection efficiency is high.

[0050] The manufacturing equipment and method of the double-layer soft-coated hard enamel product have the following advantages: it can realize stable and efficient assembly line-style slurry injection, heating and firing, primary cooling, secondary cooling, and second-layer firing and cooling, as well as finished product demoulding and finished product demoulding, meeting the preparation and molding requirements of double-layer soft-coated hard enamel products. The product prepared by this preparation method has a uniform thickness of the double layer, and the product is an integrally formed enamel component with hard enamel support inside and soft enamel wrapping the internal hard enamel outside, so that the enamel product is closer to the touch of the human body when making medical models. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 It is a schematic diagram of the left side stereoscopic structure of the manufacturing device of the present invention.

[0052] Figure 2 It is a schematic diagram of the right side three-dimensional structure of the manufacturing device of the present invention.

[0053] Figure 3 It is a schematic structural diagram of the lower half of the components in the manufacturing equipment of the present invention.

[0054] Figure 4 It is a left structural schematic diagram of the upper half of the components in the manufacturing equipment of the present invention.

[0055] Figure 5 It is a schematic diagram of the right side structure of the upper half of the components in the manufacturing equipment of the present invention.

[0056] Figure 6 It is a schematic diagram of the upper three-dimensional structure of the heating bottom box in the manufacturing equipment of the present invention.

[0057] Figure 7It is a schematic diagram of the lower three-dimensional structure of the heating bottom box in the manufacturing equipment of the present invention.

[0058] Figure 8 It is a three-dimensional structural schematic diagram of the heating top box in the manufacturing equipment of the present invention.

[0059] Fig. 9 It is a schematic diagram of the cutaway structure of the spray cooling top box in the manufacturing equipment of the present invention.

[0060] Fig.10 It is a schematic structural diagram of the hinged mold in the manufacturing equipment of the present invention when it is unfolded.

[0061] Fig.11 It is a structural schematic diagram of the injection mechanism in the manufacturing equipment of the present invention.

[0062] Fig.12 It is a process flow chart of the manufacturing method of the present invention.

[0063] Fig.13 It is a finished product experimental table of a double-layer soft-package hard enamel product made in the present invention.

[0064] In the figure, 1, base; 2, heating box; 3, lift; 4, injection mechanism; 5, demoulding mechanism; 6, lifting plate; 7, air blowing and cooling box; 8, hinged mold; 9, spray cooling box; 10, water filter; 11, rotating mechanism; 12, rotating mechanism; 13, switch button; 14, counting sensor; 15, cam divider; 16, installation turntable; 17, transmission bearing seat; 18, rotating motor; 19, mounting frame; 20, four-way commutator; 21, heating bottom box; 22, spray cooling bottom box; 23, first rotating ring seat; 24, first limit T-ring; 25, support seat; 26, second rotating ring seat; 27, air blowing and cooling bottom box; 28, spray cooling top box; 29, air blowing and cooling top seat; 30, the first Second rotating matching seat; 31. First rotating matching seat; 32. Unloading guide plate; 33. Demoulding hydraulic rod; 34. Demoulding base; 35. Demoulding top seat; 36. Heating top box; 37. Control knob; 38. Heating ventilation plate; 39. Bottom box outer shape avoidance groove; 40. Temperature display screen; 41. Fan; 42. Second limiting T-ring; 43. Top box fitting protrusion; 44. Exhaust pipe; 45. Spray pipe rack; 46. Spray head; 47. Locking block; 48. Hinge; 49. Moving mold; 50. Clamping block; 51. Tightening block; 52. Injection pipe; 53. Matching block; 54. Injection hole; 55. Fixed mold; 56. Fixed seat; 57. Sliding seat; 58. Screw injection machine; 59. Positioning hydraulic rod; 60. Limiting sliding hole seat. DETAILED DESCRIPTION

[0065] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0066] like Figure 1-Figure 11 As shown, the manufacturing equipment of the double-layer soft-package hard enamel product comprises a base 1 and two lifters 3 symmetrically distributed on both sides of the base 1. A rotating mechanism 11 and a material injection mechanism 4 are arranged on the upper end of the base 1. The material injection mechanism 4 is directly opposite to the rotating mechanism 11. A lifting plate 6 is arranged between the two lifters 3. The lifting plate 6 is located above the rotating mechanism 11. A rotating mechanism 12 is arranged between the lifting plate 6 and the rotating mechanism 11. A circular rotating mechanism 12 is arranged between the lifting plate 6 and the base 1 in sequence with the center of the rotating mechanism 11 as the center. A demoulding mechanism 5, a heating box 2, a spray cooling box 9 and a blowing cooling box 7 are distributed around the periphery, and four hinged molds 8 are arranged on the rotating mechanism 12. The four hinged molds 8 are respectively located above the demoulding mechanism 5, the heating box 2, the spray cooling box 9 and the blowing cooling box 7, and the demoulding mechanism 5 is located between the injection mechanism 4 and the rotating mechanism 11. A water filter 10 is arranged on the side of the spray cooling box 9, and the water filter 10 is respectively connected to the spray cooling box 9 and the heating box 2 through pipes.

[0067] Raw material ratio: Ratio the PVC soft and hard rubber materials, select suitable plastic powder and steam softening oil to prepare soft and hard rubber slurry, and add pigments as needed;

[0068] Primary loading: quantitatively injecting the soft glue slurry into the injection mechanism 4;

[0069] One injection, two loading: the injection mechanism 4 injects the soft glue slurry into the hinge mold 8, and at the same time, the hard glue slurry is quantitatively injected into the injection mechanism 4, and the hard glue slurry pushes out all the soft glue slurry to ensure that all the soft glue slurry is injected into the hinge mold 8. The loading amount must be accurate to ensure that the outer layer thickness of the product is uniform. During injection, the rotating mechanism 12 does not work;

[0070] Heating and firing: The two elevators 3 drive the lifting plate 6 to rise, thereby driving the demoulding mechanism 5, the heating box 2, the spray cooling box 9 and the blowing cooling box 7 installed on the lifting plate 6 to rise, so as to avoid the interference between the hinged mold 8 and the demoulding mechanism 5, the heating box 2, the spray cooling box 9 and the blowing cooling box 7 when rotating; the rotating mechanism 11 drives the hinged mold 8 to rotate 90 degrees and move it to the inside of the heating box 2, the two elevators 3 drive the lifting plate 6 to descend, the heating box 2 is closed, and the rotating mechanism 12 drives the four hinged molds 8 to rotate at the same time, and the rotating heating firing is carried out, and the temperature and time are adjusted to fire the soft glue;

[0071] One-time cooling: two elevators 3 drive the lifting plate 6 to rise to avoid interference, the rotating mechanism 11 drives the hinged mold 8 to rotate 90 degrees and move it to the inside of the spray cooling box 9, the rotating mechanism 12 drives the four hinged molds 8 to rotate at the same time, and performs a rotating water cooling treatment to cool the fired hinged mold 8 with soft glue by water;

[0072] Secondary cooling: two elevators 3 drive the lifting plate 6 to rise to avoid interference, the rotating mechanism 11 drives the hinged mold 8 to rotate 90 degrees and move it to the inside of the air blowing and cooling box 7, and the rotating mechanism 12 drives the four hinged molds 8 to rotate at the same time to perform a rotary air cooling treatment, and the fired hinged mold 8 with soft glue is air-cooled;

[0073] Secondary feeding: two elevators 3 drive the lifting plate 6 to rise to avoid interference, and the rotating mechanism 11 drives the hinge mold 8 to rotate 90 degrees and move it to face the injection mechanism 4; the injection mechanism 4 injects the hard glue slurry into the hinge mold 8, and at the same time, the soft glue slurry is quantitatively injected into the injection mechanism 4 to ensure that the hard glue slurry is fully injected into the hinge mold 8; the feeding amount must be accurate to ensure that the outer layer thickness of the product is uniform. When feeding, the rotating mechanism 12 does not work;

[0074] Firing and cooling, demoulding the product: after repeating steps 4 to 6, heating, firing, cooling once and cooling twice are repeated in sequence; the two elevators 3 drive the lifting plate 6 to rise to avoid interference, and the rotating mechanism 11 drives the hinged mold 8 to rotate and move to face the injection mechanism 4 again, and the hinged mold 8 turns 90 degrees. The parts of the demoulding mechanism 5 move down to drive the hinged mold 8 to open, and demould the fired double-layer product; after firing the hard glue and cooling to an appropriate temperature, open the mold and take out the finished product. The rotating mechanism 12 does not work during demoulding;

[0075] The hinged mold is closed and the product is prepared again: the hinged mold 8 is closed after the double-layer product is demoulded, and the next double-layer product is prepared again; and steps 1 to 8 are repeated.

[0076] A switch button 13 and a counting sensor 14 are provided on the base 1 . The rotating mechanism 11 includes a cam divider 15 . The cam divider 15 is fixed on the base 1 . A mounting turntable 16 is fixed on the output shaft of the cam divider 15 .

[0077] The switch button 13 is used to control the start and stop of the device, the counting sensor 14 is used to count the number of products, and the output shaft of the cam divider 15 drives the mounting turntable 16 fixed thereon to rotate intermittently.

[0078] The rotating mechanism 12 includes a mounting frame 19, a four-way commutator 20 and four circumferentially evenly distributed transmission bearing seats 17, the four-way commutator 20 is fixed to the middle of the upper end of the mounting turntable 16, four circumferentially evenly distributed transmission bearing seats 17 are fixed to the upper end of the mounting turntable 16, a hexagonal prism-shaped transmission shaft is fixed inside the transmission bearing seat 17, the mounting frame 19 is fixed to the lower end of the lifting plate 6, the lower end of the mounting frame 19 is rotatably provided with a square column-shaped driving shaft, the upper end of the lifting plate 6 is fixed with a vertically arranged rotating motor 18, the output shaft of the rotating motor 18 is transmission-connected with the driving shaft, and the driving shaft is slidably arranged inside the vertical input shaft at the upper end of the four-way commutator 20, and the four output shafts of the four-way commutator 20 are transmission-connected with the inner end of the transmission shaft in the opposite position.

[0079] The two elevators 3 drive the lifting plate 6 to rise, thereby driving the driving shaft to rise. The driving shaft is slidably arranged inside the vertical input shaft at the upper end of the four-way commutator 20 to ensure that the lifting process does not affect the rotation transmission of the driving shaft and the vertical input shaft at the upper end of the four-way commutator 20. The output shaft of the rotating motor 18 drives the driving shaft to rotate, and the driving shaft drives the vertical input shaft at the upper end of the four-way commutator 20 to rotate, thereby driving the four output shafts of the four-way commutator 20 to rotate in the same direction at the same time.

[0080] The hinged mold 8 includes a fixed mold 55, the inner end of which is fixed with a locking block 47 having a rectangular cross-section, the locking block 47 being detachably connected to the outer end of the transmission shaft at the corresponding position, the side of the locking block 47 being connected with a movable mold 49 through a hinge 48, the movable mold 49 having the same size as the fixed mold 55, a clamping block 50 being fixed at the end of the movable mold 49, a tightening block 51 being fixed at the inner outer end of the fixed mold 55, an injection hole 54 being provided inside the tightening block 51, an injection tube 52 having a rectangular cross-section being fixed to the outer side of the tightening block 51, the injection tube 52 being connected with the injection hole 54, the size of the tightening block 51 being the same as the inner size of the clamping block 50, a matching block 53 being fixed at the outer end of the outer side of the fixed mold 55, the matching block 53 having the same outer size as the clamping block 50, and the cross-section of the matching block 53 and the clamping block 50 after being assembled is rectangular.

[0081] Select the hinged mold 8 of the human limbs or head model, the output shaft drives the locking block 47 to rotate in the same direction at the same time, thereby driving the fixed mold 55 to rotate, thereby driving the movable mold 49 to rotate through the hinge 48, and performing rotational heating and rotational cooling. In the normal state and when the rotating mechanism 11 drives the hinged mold 8 to rotate and switch positions, the movable mold 49 is located on the upper side and is engaged on the upper side of the fixed mold 55. The movable mold 49 and the fixed mold 55 form a molding cavity. When the hinged mold 8 is demoulded, it is flipped to 90 degrees, the movable mold 49 is located on the lower side, and the fixed mold 55 is located on the upper side. The movable mold 49 is unfolded through the hinge 48 to output the internal products of the fixed mold 55 and the movable mold 49. The cross-section of the locking block 47 is rectangular and the cross-section after the matching block 53 and the engaging block 50 are spliced ​​is rectangular, which is convenient for unfolding and disengaging the hinged mold 8.

[0082] The heating box component 2 includes a heating bottom box 21 and a heating top box 36. The heating bottom box 21 is fixed on the upper end of the base 1, and the heating top box 36 is fixed on the lower end of the lifting plate 6. A fan 41 and a heating ventilation plate 38 are provided inside the heating bottom box 21. The fan 41 is located below the heating ventilation plate 38. The outer end face of the heating bottom box 21 is provided with a temperature display screen 40 and a plurality of control knobs 37. The left and right sides of the upper end face of the heating bottom box 21 are provided with bottom box shape avoidance grooves 39 that match the external shape dimensions of the hinged mold 8. The left and right sides of the lower end face of the heating top box 36 are provided with top box matching protrusions 43 that match the bottom box shape avoidance grooves 39. The heating bottom box 21 is connected to the air outlet of the water filter 10 by a pipe, and the connection of the heating bottom box 21 is located below the fan 41.

[0083] The fan 41 of the heating box 2 sucks air under negative pressure, and the hot air discharged from the air outlet of the water filter 10 is passed into the interior of the heating bottom box 21. After being heated by the heating ventilation plate 38, a high temperature is formed, and the hinged mold 8 placed between the heating bottom box 21 and the heating top box 36 is heated and fired. The control knob 37 controls the temperature and the air volume of the fan 41, and the temperature display screen 40 displays the temperature, thereby controlling the heat of the heating bottom box 21 and the heating top box 36. The bottom box outer shape avoidance groove 39 that matches the external shape of the hinged mold 8 is convenient for the hinged mold 8 to be screwed in and out along the bottom box outer shape avoidance groove 39, and the top box matching protrusion 43 that matches the bottom box outer shape avoidance groove 39. Ensure that the heating bottom box 21 and the heating top box 36 are locked and sealed, and the internal air pressure of the water filter 10 is reduced by the fan 41 suction under negative pressure.

[0084] The spray cooling box 9 includes a spray cooling bottom box 22 and a spray cooling top box 28. The spray cooling bottom box 22 is fixed to the upper end of the base 1. The water filter 10 is arranged on the side of the spray cooling top box 28. The spray cooling top box 28 is fixed to the lower end of the lifting plate 6. A submersible pump is arranged inside the spray cooling bottom box 22. A spray pipe rack 45 is arranged inside the spray cooling top box 28. The spray pipe rack 45 is connected to the water outlet of the submersible pump through a water pipe. A plurality of nozzles are arranged at the lower end of the spray pipe rack 45. 46. ​​The upper end of the spray cooling top box 28 is provided with an air outlet pipe 44 connected thereto, and the air outlet pipe 44 is connected to the air inlet end of the water filter 10. The water outlet end of the water filter 10 is connected to the spray cooling bottom box 22 through a water pipe. The left and right sides of the upper end surface of the spray cooling bottom box 22 are provided with bottom box shape avoidance grooves 39 matching the external shape dimensions of the hinged mold 8, and the left and right sides of the lower end surface of the spray cooling top box 28 are provided with top box matching protrusions 43 matching the bottom box shape avoidance grooves 39.

[0085] The submersible pump draws clean water from the spray cooling bottom box 22 into the spray pipe rack 45 from the water outlet, and sprays it downward from the plurality of nozzles 46 onto the hinged mold 8 after heating and firing, so as to cool the hinged mold 8 once. This process generates steam, which is discharged through the air outlet pipe 44 and enters the water filter 10 to separate the water in the steam. The water flows back to the spray cooling bottom box 22 through the water outlet of the water filter 10, and the filtered high-temperature air is cooled. , passed into the interior of the heating bottom box 21, the bottom box outer shape avoidance groove 39 matching the external shape of the hinged mold 8, which is convenient for the hinged mold 8 to be screwed in and out along the bottom box outer shape avoidance groove 39, and the top box matching protrusion 43 matching the bottom box outer shape avoidance groove 39 ensures that the heating bottom box 21 and the heating top box 36 are locked and sealed; the water filter 10 is arranged on the side of the spray cooling top box 28, and the water filter 10 can be raised with the spray cooling top box 28 to avoid interference.

[0086] The blowing and cooling box assembly 7 includes a blowing and cooling bottom box 27 and a blowing and cooling top seat 29. The blowing and cooling bottom box 27 is fixed to the upper end of the base 1, and the blowing and cooling top seat 29 is fixed to the lower end of the lifting plate 6. A fan 41 is provided inside the blowing and cooling bottom box 27, and support seats 25 are fixed on both inner and outer sides of the upper end of the blowing and cooling bottom box 27.

[0087] The fan 41 of the air blowing and cooling box 7 uses negative pressure suction to blow external air upward from the lower part of the air blowing and cooling bottom box 27, and blows it onto the hinged mold 8 located between the two support seats 25 of the air blowing and cooling bottom box 27 and the air blowing and cooling top seat 29, thereby performing secondary air cooling on the hinged mold 8. The support seat 25 facilitates the hinged mold 8 to be screwed in and out.

[0088] The demoulding mechanism 5 includes a demoulding top seat 35 and four demoulding hydraulic rods 33 arranged vertically upward. The demoulding top seat 35 is fixed to the lower end of the lifting plate 6, and the four demoulding hydraulic rods 33 are all fixed to the upper end of the base 1. A demoulding base 34 is fixed to the output end of the four demoulding hydraulic rods 33, and an inclined unloading guide plate 32 is fixed to the demoulding base 34.

[0089] The hinged mold 8 is placed between the demoulding top seat 35 and the demoulding base 34 to facilitate the stable rotation of the hinged mold 8. When the hinged mold 8 is screwed in and out, the demoulding top seat 35 rises with the lifting plate 6. When the hinged mold 8 is demoulded, the telescopic ends of the four demoulding hydraulic rods 33 move downward, thereby pulling the demoulding base 34 and the unloading guide plate 32 above it to move downward, the hinged mold 8 is unfolded, and the molded product inside the hinged mold 8 is demoulded and falls on the unloading guide plate 32, and rolls out along the unloading guide plate 32.

[0090] The outer side of the upper end of the heating bottom box 21, the outer side of the upper end of the spray cooling bottom box 22, the upper end of the outer support seat 25 and the upper end of the outer side of the demoulding base 34 are all rotatably provided with a first rotating ring seat 23, and the upper end surface of the first rotating ring seat 23 abuts against the lower end surface of the clamping block 50 and the injection tube 52; the inner side of the upper end of the heating bottom box 21, the inner side of the upper end of the spray cooling bottom box 22, the upper end of the inner support seat 25 and the inner upper end of the demoulding base 34 are all rotatably provided with a first rotating ring seat 23. The first rotating ring seat 23 and the second rotating ring seat 26 are provided with a first limiting T-shaped ring 24 on their outer circumferential surfaces, and the first limiting T-shaped ring 24 is rotatably arranged at the corresponding positions of the heating bottom box 21, the spray cooling bottom box 22, the outer support seat 25 and the demoulding base 34; the lower end outer side of the heating top box 36, the lower end outer side of the spray cooling top box 28, and the blowing cooling top box 34 are provided with a first limiting T-shaped ring 24 on their outer circumferential surfaces. The outer side of the lower end of the seat 29 and the outer lower end of the demoulding top seat 35 are both rotatably provided with a first rotating matching seat 31, the first rotating matching seat 31 is engaged and abutted on the injection tube 52 and the matching block 53, and the first rotating matching seat 31 is assembled with the first rotating ring seat 23 to form a first rotating seat assembly; the inner side of the lower end of the heating top box 36, the inner side of the lower end of the spray cooling top box 28, the inner side of the lower end of the blowing cooling top seat 29 and the inner lower end of the demoulding top seat 35 are all rotatably provided with a second rotating matching seat 30, the second rotating matching seat 30 is engaged and abutted on the locking block 47, and the second rotating matching seat 30 is assembled with the second rotating ring seat 26 to form a second rotating seat assembly; the outer circumferential surfaces of the first rotating matching seat 31 and the second rotating matching seat 30 are both provided with a second limiting T-ring 42, and the second limiting T-ring 42 is rotatably set at the corresponding positions of the heating top box 36, the spray cooling top box 28, the blowing cooling top seat 29 and the demoulding top seat 35.

[0091] The upper end surface of the first rotating ring seat 23 abuts against the lower end surface of the clamping block 50 and the injection tube 52, the upper end surface of the second rotating ring seat 26 abuts against the lower end surface of the locking block 47, the first rotating matching seat 31 abuts against the injection tube 52 and the matching block 53, and the first rotating matching seat 31 and the first rotating ring seat 23 are assembled to form a first rotating seat assembly, the second rotating matching seat 30 abuts against the locking block 47, and the second rotating matching seat 30 and the second rotating ring seat 26 are assembled to form a second The output shaft drives the locking block 47 to rotate in the same direction at the same time. When the hinge mold 8 rotates, the first rotating seat 31 and the first rotating ring seat 23 are assembled to form the first rotating seat assembly, and the second rotating seat 30 and the second rotating ring seat 26 are assembled to form the second rotating seat assembly. The first rotating seat assembly rotates stably inside, and the first rotating seat assembly is between the corresponding heating bottom box 21 and the heating top box 36, between the spray cooling bottom box 22 and the spray cooling top box 28, and between the blowing cooling top seat 29 and the support seat. 25, between the demoulding top seat 35 and the demoulding base 34, so as to ensure the stable rotation of the hinged mold 8. The hinged mold 8 stops rotating during the rotation switching process. At this time, the first rotating ring seat 23, the second rotating ring seat 26, the second rotating matching seat 30 and the first rotating matching seat 31 are all in the initial position to ensure the screwing in and out of the hinged mold 8. The first limiting T-ring 24 and the second limiting T-ring 42 ensure the stable rotation of the first rotating seat assembly and the second rotating seat assembly. During demoulding, the first rotating ring seat 23 of the demoulding mechanism 5 is exchanged with the first rotating matching seat 31, and the second rotating ring seat 26 is exchanged with the second rotating matching seat 30, that is, the hinged mold 8 is flipped 90 degrees inside the demoulding mechanism 5, and the telescopic ends of the four demoulding hydraulic rods 33 move downward, thereby pulling the demoulding base 34 and the unloading guide plate 32 above it to move downward, the hinged mold 8 is unfolded, and the molded product inside the hinged mold 8 is demoulded and falls on the unloading guide plate 32 and rolls down along the unloading guide plate 32.

[0092] The injection mechanism 4 includes a fixed seat 56, which is fixed on the upper end of the base 1. A positioning hydraulic rod 59 and a limiting sliding hole seat 60 are fixed on the upper end of the fixed seat 56. The telescopic end of the positioning hydraulic rod 59 slides and passes through the limiting sliding hole seat 60. A sliding seat 57 is slidably provided on the upper end of the fixed seat 56. A spiral injection machine 58 is fixed on the upper end of the sliding seat 57. The telescopic end of the positioning hydraulic rod 59 is fixedly connected to the rear side of the spiral injection machine 58. The discharge end of the spiral injection machine 58 is directly opposite to the injection pipe 52 of the hinged mold 8 located at the demoulding mechanism 5.

[0093] Proportion the PVC soft and hard rubber materials, select suitable plastic powder and steam softening oil to prepare soft rubber slurry and hard rubber slurry, and add pigments as needed. During the first loading, the soft rubber slurry is quantitatively injected into the spiral injection machine 58, and the telescopic end of the adjustment hydraulic rod 59 is extended to drive the sliding seat 57 to slide on the upper end of the fixed seat 56, so that the discharge end of the spiral injection machine 58 is in contact with the injection pipe 52 of the hinge mold 8 located at the demoulding mechanism 5. During the first injection and the second loading, the spiral injection machine 58 injects the internal soft rubber slurry into the hinge mold 8. While injecting the soft rubber slurry, the hard rubber slurry is quantitatively injected into the spiral injection machine 58 at the same time, and the injection is continued to ensure that the hard rubber slurry squeezes out all the internal soft rubber slurry and is injected into the hinge mold 8.

[0094] The working principle of the present invention is as follows: Step 1, raw material ratio: PVC soft glue and hard glue materials are ratioed, suitable plastic powder and steam softening oil are selected to prepare soft glue slurry and hard glue slurry, and pigments are added as needed, and soft glue slurry and hard glue slurry are prepared according to the above ratio;

[0095] Step 2, one-time loading: quantitatively inject the soft glue slurry into the screw injection machine 58, and the telescopic end of the adjustment hydraulic rod 59 extends to drive the sliding seat 57 to slide on the upper end of the fixed seat 56, so that the discharge end of the screw injection machine 58 abuts against the injection pipe 52 of the hinged mold 8 located at the demoulding mechanism 5;

[0096] Step 3, one-time injection, two-time loading: the spiral injection machine 58 injects the internal soft glue slurry into the hinge mold 8. While injecting the soft glue slurry, the hard glue slurry is quantitatively injected into the spiral injection machine 58, and the injection is continued to ensure that the hard glue slurry squeezes out all the internal soft glue slurry and injects it into the hinge mold 8. The loading amount must be accurate to ensure that the outer layer thickness of the product is uniform. During the injection, the rotating mechanism 12 does not work;

[0097] Step 4, heating and firing: the control knob 37 controls the temperature and the air volume of the fan 41, the temperature display screen 40 displays the temperature, the fan 41 of the heating box 2 sucks air with negative pressure, and the hot air discharged from the air outlet of the water filter 10 is passed into the interior of the heating bottom box 21, and is heated by the heating ventilation plate 38 to form a high temperature;

[0098] The two lifts 3 drive the lifting plate 6 to rise, thereby driving the demoulding top seat 35, the heating top box 36, the spray cooling top box 28 and the blowing cooling top seat 29 installed on the lifting plate 6 to rise, so as to avoid the interference of the hinged mold 8 with the demoulding mechanism 5, the heating box part 2, the spray cooling box part 9 and the blowing cooling box part 7 during rotation. The output shaft of the cam splitter 15 drives the mounting turntable 16 fixed thereon to rotate 90 degrees, thereby driving the hinged mold 8 thereon to rotate 90 degrees and move it to the inside of the heating box part 2. The two lifts 3 drive the lifting plate 6 to descend, and the heating box part 2 is closed. The upper end face of the first rotating ring seat 23 abuts against the lower end face of the locking block 50 and the injection pipe 52, the upper end face of the second rotating ring seat 26 abuts against the lower end face of the locking block 47, and the first rotating matching seat 31 engages and abuts against the injection pipe 52 and The first rotating matching seat 31 is on the matching block 53, and the first rotating ring seat 23 is assembled to form a first rotating seat assembly, the second rotating matching seat 30 is engaged with the locking block 47, and the second rotating matching seat 30 is assembled to the second rotating ring seat 26 to form a second rotating seat assembly, the output shaft of the rotating motor 18 drives the driving shaft to rotate, and the driving shaft drives the vertical input shaft at the upper end of the four-way commutator 20 to rotate, thereby driving the four output shafts of the four-way commutator 20 to rotate in the same direction at the same time, and the output shaft drives the locking block 47 to rotate in the same direction at the same time, thereby driving the fixed mold 55 to rotate, thereby driving the movable mold 49 to rotate through the hinge 48, that is, the rotating mechanism 12 drives the four hinged molds 8 to rotate at the same time, and the hinged mold 8 placed between the heating bottom box 21 and the heating top box 36 is rotated, heated and fired to burn the soft glue;

[0099] Step 5, one-time cooling: the two elevators 3 drive the lifting plate 6 to rise, thereby driving the demoulding top seat 35, the heating top box 36, the spray cooling top box 28 and the blowing cooling top seat 29 installed on the lifting plate 6 to rise, avoiding the interference of the hinged mold 8 with the demoulding mechanism 5, the heating box part 2, the spray cooling box part 9 and the blowing cooling box part 7 during rotation, and the output shaft of the cam splitter 15 drives the fixed installation turntable 16 thereon to rotate 90 degrees, thereby driving the hinged mold 8 thereon to rotate 90 degrees, and the hinged mold 8 moves to the inside of the spray cooling box part 9, and the rotating mechanism 12 drives the four hinged molds 8 to rotate at the same time, and the submersible pump draws the clean water inside the spray cooling bottom box 22 from its water outlet into the spray Inside the pipe rack 45, a plurality of nozzles 46 spray downward onto the hinged mold 8 after heating and firing, and the hinged mold 8 is cooled by water. This process generates steam, which is discharged through the air outlet pipe 44 and enters the water filter 10 to separate the moisture in the steam. The water flows back to the spray cooling bottom box 22 through the water outlet end of the water filter 10, and the filtered high-temperature air is passed into the interior of the heating bottom box 21. The bottom box outer shape avoidance groove 39 matching the external shape of the hinged mold 8 facilitates the hinged mold 8 to be screwed in and out along the bottom box outer shape avoidance groove 39, and the top box matching protrusion 43 matching the bottom box outer shape avoidance groove 39 ensures that the heating bottom box 21 and the heating top box 36 are locked and sealed;

[0100] Step 6, secondary cooling: The two elevators 3 drive the lifting plate 6 to rise, thereby driving the demoulding top seat 35, the heating top box 36, the spray cooling top box 28 and the blowing cooling top seat 29 installed on the lifting plate 6 to rise, so as to avoid the interference between the hinged mold 8 and the demoulding mechanism 5, the heating box 2, the spray cooling box 9 and the blowing cooling box 7 when the hinged mold 8 rotates. The output shaft of the cam splitter 15 drives the fixed mounting turntable 16 thereon to rotate 90 degrees, thereby driving the hinged mold 8 thereon to rotate 90 degrees. The mold 8 is rotated 90 degrees and moved into the inside of the air-blowing and cooling box 7. The rotating mechanism 12 drives the four hinged molds 8 to rotate simultaneously. The fan 41 of the air-blowing and cooling box 7 sucks air with negative pressure, and blows the external air upward from the lower part of the air-blowing and cooling bottom box 27 to the hinged mold 8 located between the two support seats 25 and the air-blowing and cooling top seat 29 of the air-blowing and cooling bottom box 27. The hinged mold 8 is subjected to secondary rotation and air-cooling treatment, and the fired mold with soft glue is air-cooled;

[0101] Step seven, secondary feeding, re-loading: the two elevators 3 drive the lifting plate 6 to rise, thereby driving the demoulding top seat 35, the heating top box 36, the spray cooling top box 28 and the blowing cooling top seat 29 installed on the lifting plate 6 to rise, so as to avoid the interference of the hinged mold 8 with the demoulding mechanism 5, the heating box 2, the spray cooling box 9 and the blowing cooling box 7 during rotation. The output shaft of the cam splitter 15 drives the fixed mounting turntable 16 thereon to rotate 90 degrees, thereby driving the hinged mold 8 thereon to rotate 90 degrees and move it to the inside of the demoulding mechanism 5 and facing the injection mechanism 4; the injection mechanism 4 injects the hard glue slurry into the hinged mold 8, and at the same time, the soft glue slurry is quantitatively injected into the injection mechanism 4 to ensure that the hard glue slurry is completely injected into the hinged mold 8; the feeding amount must be accurate to ensure that the outer layer thickness of the product is uniform. When feeding, the rotating mechanism 12 does not work;

[0102] Step eight, firing and cooling, product demoulding: after repeating steps four to six, that is, heating and firing, cooling once and cooling twice are repeated in sequence; the rotating mechanism 11 drives the hinged mold 8 to rotate again, moves to the inside of the demoulding mechanism 5 and faces the injection mechanism 4, and the rotating mechanism 12 drives the four hinged molds 8 to rotate 90 degrees at the same time, that is, the hinged mold 8 is turned 90 degrees inside the demoulding mechanism 5, and the first rotating ring seat 23 of the demoulding mechanism 5 is exchanged with the first rotating matching seat 31, and the second rotating ring seat 26 is exchanged with the second rotating matching seat 30. The telescopic ends of the four demoulding hydraulic rods 33 move downward, thereby pulling the demoulding base 34 and the unloading guide plate 32 above it to move downward, and the hinged mold 8 is unfolded. The molded product inside the hinged mold 8 is demoulded and falls on the unloading guide plate 32, and rolls out along the unloading guide plate 32; after firing the hard glue and cooling to an appropriate temperature, the mold is opened to take out the finished product, and the rotating mechanism 12 does not work during demoulding;

[0103] Step nine, close the hinged mold and prepare again: after the double-layer product is demoulded, the hinged mold 8 is closed, the telescopic ends of the four demoulding hydraulic rods 33 move upward, thereby pulling the demoulding base 34 and the unloading guide plate 32 above it to move upward, the hinged mold 8 is closed, and the next double-layer product is prepared again; repeat steps one to eight.

[0104] In summary, the rotating mechanism 11 cooperates with the rotating mechanism 12 to drive the rotating mechanism 12 to rotate horizontally and switch the workstations. The rotating mechanism 12 drives the hinged mold 8 to rotate, so as to realize stable assembly line-style injection, one-layer firing, one-time cooling, two-time cooling, two-layer firing and finished product demoulding; the two elevators 3 cooperate with the lifting plate 6 to facilitate the lifting and lowering of the heating top box 36, the spray cooling top box 28, the blowing cooling top seat 29 and the demoulding top seat 35 to avoid interference when rotating and switching workstations; the heating box 2 cooperates with the hinged mold 8 to realize the hinged mold 8 Rotary high-temperature heating and firing are carried out, and the product thickness is uniform; through the spray cooling box 9 and the hinged mold 8, the hinged mold 8 is cooled by water once, and the cooling is uniform; through the blowing cooling box 7 and the hinged mold 8, the hinged mold 8 is cooled by air twice, and the cooling is uniform; through the demoulding mechanism 5 and the hinged mold 8, stable rotation is achieved, and the hinged mold 8 is opened and closed, which is convenient for demoulding the fired double-layer product; through the cooperation of the hinged mold 8 and the injection mechanism 4, the slurry is stably injected into the hinged mold 8, and the injection efficiency is high.

[0105] like Fig.12 As shown, the manufacturing method of the double-layer soft-package hard enamel product includes the following manufacturing steps:

[0106] Step 1, raw material ratio: ratio the PVC soft rubber and hard rubber materials, select suitable plastic powder and steam softening oil to prepare soft rubber slurry and hard rubber slurry, and add pigments as needed;

[0107] Step 2: one-time loading: quantitatively inject the soft glue slurry into the injection mechanism;

[0108] Step 3, one injection, two loading: the injection mechanism injects the soft glue slurry into the hinge mold, and at the same time, the hard glue slurry is quantitatively injected into the injection mechanism to ensure that the soft glue slurry is fully injected into the hinge mold. The loading amount must be accurate to ensure that the outer layer thickness of the product is uniform. During injection, the rotating mechanism does not work;

[0109] Step 4: Heating and firing: The rotating mechanism drives the hinged mold to rotate 90 degrees and move it into the heating box. The rotating mechanism drives the four hinged molds to rotate at the same time, and the rotating heating and firing are performed. The temperature and time are adjusted to fire the soft glue.

[0110] Step 5, one-time cooling: the rotating mechanism drives the hinged mold to rotate 90 degrees and move it to the inside of the spray cooling box. The rotating mechanism drives the four hinged molds to rotate at the same time, and performs a rotating water cooling treatment to cool the fired mold with soft glue by water;

[0111] Step 6, secondary cooling: the rotating mechanism drives the hinged mold to rotate 90 degrees and move it to the inside of the air-blowing cooling box. The rotating mechanism drives the four hinged molds to rotate at the same time, and performs a rotating air-cooling cooling treatment to air-cool the fired mold with soft glue;

[0112] Step 7, secondary feeding, re-loading: the rotating mechanism drives the hinged mold to rotate 90 degrees and move it to face the injection mechanism; the injection mechanism injects the hard glue slurry into the hinged mold, and at the same time, the soft glue slurry is quantitatively injected into the injection mechanism to ensure that the hard glue slurry is fully injected into the hinged mold; the feeding amount must be accurate to ensure uniform thickness of the outer layer of the product. When feeding, the rotating mechanism does not work;

[0113] Step 8, firing and cooling, demoulding the product: after repeating steps 4 to 6, that is, heating and firing, cooling once and cooling twice are repeated in sequence; the rotating mechanism drives the hinged mold to rotate and move to face the injection mechanism again, the hinged mold is opened, and the fired double-layer product is demoulded; after firing the hard glue and cooling to an appropriate temperature, the mold is opened to take out the finished product, and the rotating mechanism does not work during demoulding;

[0114] Step nine, close the hinged mold and prepare again: close the hinged mold after the double-layer product is demoulded, and prepare the next double-layer product again; repeat steps one to eight.

[0115] The hard glue slurry in step 1 is formulated by weight percentage: plasticizer is DINCH: 4%, plasticizer is TXIB: 13%, hard oil is D80: 2%, phenol-free stabilizer is CZ1302: 2%, heat-resistant oil is K39: 2%, polyvinyl chloride paste resin: 43%, polyvinyl chloride resin is 201: 32%, calcium stearate: 2%;

[0116] The formula of soft glue slurry by weight percentage: plasticizer is DINCH: 58%, adipic acid polyester is softening oil: 8%, phenol-free stabilizer is CZ1302: 3%, heat-resistant oil is K39: 3%, polyvinyl chloride paste resin: 28%;

[0117] The firing temperature in step 4 is 250 degrees Celsius, the firing time is 800-900 seconds, the first cooling time in step 5 is 10-15 seconds, and the second cooling time in step 6 is 5-10 seconds;

[0118] The firing temperature in step eight is 250 degrees Celsius, the firing time is 1200-1500 seconds, the first cooling time in step eight is 10-15 seconds, and the second cooling time is 5-10 seconds;

[0119] The finished product in step eight has a hard glue inner layer of 70-80 degrees and a soft glue outer layer of 20-30 degrees.

[0120] In summary, this preparation method can achieve stable and efficient assembly line-style slurry injection, one-layer firing, one-time cooling, two-layer firing, and finished product demolding, meeting the preparation and molding requirements of double-layer soft-wrapped hard enamel products. The product has a uniform thickness of two layers, and the product is an integrated enamel component with hard enamel support inside and soft enamel wrapping the internal hard enamel outside, making the enamel product closer to the human body touch when making medical models.

[0121] like Fig.13 As shown in the figure, the finished product experimental table of the double-layer soft-package hard enamel product prepared by the production method. It can be seen from the experimental table that there are two hinged molds, namely mold one and mold two. There is no difference in function between mold one and mold two. The following categories are mainly judged by the weight proportion of raw materials, preparation temperature and preparation time: whether it is mature, whether there is watermark on the surface, whether the hardness is qualified, whether it is damaged, and whether the color is qualified.

[0122] The test results are as follows:

[0123] Serial number 5 is qualified, that is, on July 4, 2024, when the weight of the PVC soft glue was 110g, the temperature was 240℃, and the time was 900s, and when the weight of the PVC hard glue was 80g, the temperature was 240℃, and the time was 1200s, the finished product was qualified, and the same parameters were repeated 5 times on the same day, all of which were qualified;

[0124] Serial number 9 is qualified, that is, mold 2 is qualified on December 8, 2023, when the weight of PVC soft glue is 450g, the temperature is 260℃, and the time is 900s, and when the weight of PVC hard glue is 500g, the temperature is 260℃, and the time is 1500s. The same parameters were repeated 4 times on the same day, and all were qualified;

[0125] Serial number 13 is qualified, that is, mold 2 is qualified on June 21, 2024, when the weight of PVC soft glue is 430g, the temperature is 260℃, and the time is 800s, and when the weight of PVC hard glue is 480g, the temperature is 260℃, and the time is 1400s, the finished product is qualified, and the same parameters are repeated 4 times on the same day, all of which are qualified;

[0126] In summary, different products are prepared using corresponding molds, and the optimal weight ratio of PVC soft glue and PVC hard glue, the most suitable preparation temperature, and the best preparation time of the mold are obtained through the controlled variable method experiment. Subsequent qualified products are batch prepared according to the weight ratio, preparation temperature, and preparation time. Compared with winter, when preparing products in summer, the weight of PVC soft glue and PVC hard glue is reduced, the weight ratio of PVC soft glue and PVC hard glue is reduced, the preparation temperature is lowered, and the preparation time is shortened.

[0127] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A manufacturing device for double-layer soft-coated hard enamel products, comprising a base (1) and two lifts (3) symmetrically distributed on both sides of the base (1), wherein a switch button (13) is provided on the base (1), characterized in that: A rotating mechanism (11) and an injection mechanism (4) are provided at the upper end of the base (1), the injection mechanism (4) is directly opposite to the rotating mechanism (11), a lifting plate (6) is provided between the two lifts (3), the lifting plate (6) is located above the rotating mechanism (11), a rotating mechanism (12) is provided between the lifting plate (6) and the rotating mechanism (11), and a demoulding mechanism (5), a heating box (2), a spray cooling mechanism (3) and a heating box (4) are provided in sequence between the lifting plate (6) and the base (1) in a circular arrangement with the center of the rotating mechanism (11) as the center. The rotating mechanism (12) is provided with four hinged molds (8), the four hinged molds (8) are respectively located above the demoulding mechanism (5), the heating box (2), the spray cooling box (9) and the blowing cooling box (7), and the demoulding mechanism (5) is located between the injection mechanism (4) and the rotating mechanism (11), and a water filter (10) is provided on the side of the spray cooling box (9), and the water filter (10) is respectively connected to the spray cooling box (9) and the heating box (2) through pipelines. The rotating mechanism (11) includes a cam splitter (15), the cam splitter (15) is fixed on the base (1), and a mounting turntable (16) is fixed on the output shaft of the cam splitter (15); the rotating mechanism (12) includes a mounting frame (19), a four-way commutator (20) and four circumferentially evenly distributed transmission bearing seats (17), the four-way commutator (20) is fixed to the middle of the upper end of the mounting turntable (16), the four circumferentially evenly distributed transmission bearing seats (17) are fixed to the upper end of the mounting turntable (16), and the transmission A hexagonal-shaped transmission shaft is fixed inside the bearing seat (17); a mounting frame (19) is fixed to the lower end of the lifting plate (6); a square-shaped driving shaft is rotatably provided at the lower end of the mounting frame (19); a vertically arranged rotating motor (18) is fixed to the upper end of the lifting plate (6); an output shaft of the rotating motor (18) is transmission-connected to the driving shaft, and the driving shaft is slidably arranged inside a vertical input shaft at the upper end of a four-way commutator (20); and four output shafts of the four-way commutator (20) are transmission-connected to the inner end of the transmission shaft at the opposite position.

2. The manufacturing equipment of a double-layer soft-package hard enamel product according to claim 1 is characterized in that: The hinged mold (8) comprises a fixed mold (55), a locking block (47) with a rectangular cross section is fixed to the inner end of the fixed mold (55), the locking block (47) is detachably connected to the outer end of the transmission shaft at a corresponding position, the side of the locking block (47) is connected to a movable mold (49) via a hinge (48), the movable mold (49) and the fixed mold (55) have the same size, a locking block (50) is fixed to the end of the movable mold (49), and a tightening block (51) is fixed to the inner outer end of the fixed mold (55). A material injection hole (54) is provided inside the pressing block (51), a material injection tube (52) with a rectangular cross section is fixed to the outer side of the pressing block (51), the material injection tube (52) is connected to the material injection hole (54), the size of the pressing block (51) is the same as the inner size of the locking block (50), a matching block (53) is fixed to the outer end of the outer side of the fixed mold (55), the matching block (53) and the locking block (50) have the same outer size, and the cross section of the matching block (53) and the locking block (50) after being assembled is rectangular.

3. The manufacturing equipment of a double-layer soft-package hard enamel product according to claim 2 is characterized in that: The heating box member (2) comprises a heating bottom box (21) and a heating top box (36), wherein the heating bottom box (21) is fixed to the upper end of the base (1), and the heating top box (36) is fixed to the lower end of the lifting plate (6). A fan (41) and a heating ventilation plate (38) are arranged inside the heating bottom box (21), and the fan (41) is located below the heating ventilation plate (38). A temperature display screen (40) and a plurality of control knobs (37) are arranged on the outer end surface of the heating bottom box (21). Bottom box outer shape avoidance grooves (39) matching the outer shape dimensions of the hinge mold (8) are arranged on the left and right sides of the upper end surface of the heating bottom box (21), and top box matching protrusions (43) matching the bottom box outer shape avoidance grooves (39) are arranged on the left and right sides of the lower end surface of the heating top box (36). The heating bottom box (21) is connected to the air outlet of the water filter (10) through a pipeline, and the connection point of the heating bottom box (21) is located below the fan (41).

4. The manufacturing equipment of a double-layer soft-package hard enamel product according to claim 3 is characterized in that: The spray cooling box (9) comprises a spray cooling bottom box (22) and a spray cooling top box (28), the spray cooling bottom box (22) is fixed to the upper end of the base (1), the water filter (10) is arranged on the side of the spray cooling top box (28), the spray cooling top box (28) is fixed to the lower end of the lifting plate (6), a submersible pump is arranged inside the spray cooling bottom box (22), a spray cooling top box (28) is arranged inside the spray cooling pipe rack (45), the spray pipe rack (45) and the water outlet end of the submersible pump are connected by a water pipe, and a plurality of water pipes are arranged at the lower end of the spray pipe rack (45). The spray head (46) is provided at the upper end of the spray cooling top box (28) with an air outlet pipe (44) connected thereto, the air outlet pipe (44) is connected to the air inlet end of the water filter (10), the water outlet end of the water filter (10) is connected to the spray cooling bottom box (22) via a water pipe, the upper end surface of the spray cooling bottom box (22) is provided with bottom box shape avoidance grooves (39) matching the external shape dimensions of the hinged mold (8) on the left and right sides of the upper end surface of the spray cooling top box (28), and the lower end surface of the spray cooling top box (28) is provided with top box matching protrusions (43) matching the bottom box shape avoidance grooves (39) on the left and right sides.

5. The manufacturing equipment of a double-layer soft-package hard enamel product according to claim 4 is characterized in that: The air blowing and cooling box component (7) comprises an air blowing and cooling bottom box (27) and an air blowing and cooling top seat (29); the air blowing and cooling bottom box (27) is fixed to the upper end of the base (1); the air blowing and cooling top seat (29) is fixed to the lower end of the lifting plate (6); a fan (41) is provided inside the air blowing and cooling bottom box (27); support seats (25) are fixed to both inner and outer sides of the upper end of the air blowing and cooling bottom box (27); the demoulding mechanism (5) comprises a demoulding top seat (35) and four demoulding hydraulic rods (33) arranged vertically upward; the demoulding top seat (35) is fixed to the lower end of the lifting plate (6); the four demoulding hydraulic rods (33) are all fixed to the upper end of the base (1); a demoulding base (34) is fixed to the output end of the four demoulding hydraulic rods (33); and an inclined unloading guide plate (32) is fixed to the demoulding base (34).

6. The manufacturing equipment of a double-layer soft-package hard enamel product according to claim 5, characterized in that: The outer side of the upper end of the heating bottom box (21), the outer side of the upper end of the spray cooling bottom box (22), the upper end of the outer support seat (25) and the upper end of the outer side of the demoulding base (34) are all rotatably provided with a first rotating ring seat (23), and the upper end surface of the first rotating ring seat (23) abuts against the lower end surface of the clamping block (50) and the injection pipe (52); the inner side of the upper end of the heating bottom box (21), the inner side of the upper end of the spray cooling bottom box (22), the upper end of the inner support seat (25) and the upper end of the inner side of the demoulding base (34) are all rotatably provided with a first rotating ring seat (23). The first rotating ring seat (23) and the second rotating ring seat (26) are provided with a first limiting T-shaped ring (24) on their outer circumferential surfaces, and the first limiting T-shaped ring (24) is rotatably arranged at corresponding positions of the heating bottom box (21), the spray cooling bottom box (22), the outer supporting seat (25) and the demoulding base (34); the lower end outer side of the heating top box (36), the lower end outer side of the spray cooling top box (28), and the blowing cooling bottom box (22) are provided on the outer side of the second rotating ring seat (26); ...) The lower outer side of the top seat (29) and the lower outer side of the demoulding top seat (35) are both rotatably provided with a first rotatable matching seat (31), the first rotatable matching seat (31) is engaged with the injection tube (52) and the matching block (53), and the first rotatable matching seat (31) and the first rotating ring seat (23) are assembled to form a first rotatable seat assembly; the lower inner side of the heating top box (36), the lower inner side of the spray cooling top box (28), the lower inner side of the blowing cooling top seat (29) and the lower inner side of the demoulding top seat (35) are all rotatably provided with a first rotating matching seat (31). Two rotating matching seats (30), the second rotating matching seat (30) is engaged with the locking block (47), and the second rotating matching seat (30) and the second rotating ring seat (26) are assembled to form a second rotating seat assembly; the outer circumferential surfaces of the first rotating matching seat (31) and the second rotating matching seat (30) are both provided with a second limiting T-shaped ring (42), and the second limiting T-shaped ring (42) is rotatably arranged at corresponding positions of the heating top box (36), the spray cooling top box (28), the blowing cooling top seat (29) and the demoulding top seat (35).

7. The manufacturing equipment of a double-layer soft-package hard enamel product according to claim 6, characterized in that: The injection mechanism (4) comprises a fixed seat (56), the fixed seat (56) being fixed to the upper end of the base (1), a position adjustment hydraulic rod (59) and a position limiting sliding hole seat (60) being fixed to the upper end of the fixed seat (56), the telescopic end of the position adjustment hydraulic rod (59) slidingly passes through the position limiting sliding hole seat (60), a sliding seat (57) being slidably provided at the upper end of the fixed seat (56), a screw injection machine (58) being fixed to the upper end of the sliding seat (57), the telescopic end of the position adjustment hydraulic rod (59) being fixedly connected to the rear side of the screw injection machine (58), and the discharge end of the screw injection machine (58) being directly opposite to the injection pipe (52) of the hinged mold (8) located at the demoulding mechanism (5).

8. The manufacturing equipment of the double-layer soft-package hard enamel product according to claim 7 is characterized in that: A counting sensor (14) is provided on the base (1).

9. A method for manufacturing a double-layer soft-coated hard enamel product, using the manufacturing equipment according to any one of claims 1 to 8, characterized in that: The production steps include: Step 1, raw material ratio: ratio the PVC soft rubber and hard rubber materials, select suitable plastic powder and steam softening oil to prepare soft rubber slurry and hard rubber slurry, and add pigments as needed; Step 2: one-time loading: quantitatively inject the soft glue slurry into the injection mechanism; Step 3, one-time injection and two-time loading: the injection mechanism injects the soft glue slurry into the hinge mold, and at the same time, the hard glue slurry is quantitatively injected into the injection mechanism to ensure that all the soft glue slurry is injected into the hinge mold; Step 4: Heating and firing: The rotating mechanism drives the hinged mold to rotate 90 degrees and move it into the heating box. The rotating mechanism drives the four hinged molds to rotate at the same time, and the rotating heating and firing are performed. The temperature and time are adjusted to fire the soft glue. Step 5, one-time cooling: the rotating mechanism drives the hinged mold to rotate 90 degrees and move it to the inside of the spray cooling box. The rotating mechanism drives the four hinged molds to rotate at the same time, and performs a rotating water cooling treatment to cool the fired mold with soft glue by water; Step 6, secondary cooling: the rotating mechanism drives the hinged mold to rotate 90 degrees and move it to the inside of the air-blowing cooling box. The rotating mechanism drives the four hinged molds to rotate at the same time, and performs a rotating air-cooling cooling treatment to air-cool the fired mold with soft glue; Step 7, secondary feeding, re-loading: the rotating mechanism drives the hinge mold to rotate 90 degrees and move it to face the injection mechanism; the injection mechanism injects the hard glue slurry into the hinge mold, and at the same time, the soft glue slurry is quantitatively injected into the injection mechanism to ensure that the hard glue slurry is fully injected into the hinge mold; Step 8, firing and cooling, demoulding the product: after repeating steps 4 to 6, that is, heating and firing, cooling once and cooling twice are repeated in sequence; the rotating mechanism drives the hinged mold to rotate and move to face the injection mechanism again, the hinged mold opens, and the fired double-layer product is demoulded; Step nine, closing the hinged mold and preparing again: closing the hinged mold after the double-layer product is demoulded, and preparing the next double-layer product again; Repeat steps 1 to 8.

10. The method for manufacturing a double-layer soft-coated hard enamel product according to claim 9, characterized in that: The hard glue slurry in step 1 is formulated by weight percentage as follows: plasticizer DINCH: 4%, plasticizer TXIB: 13%, hard oil D80: 2%, phenol-free stabilizer: 2%, heat-resistant oil: 2%, polyvinyl chloride paste resin: 43%, polyvinyl chloride resin: 32%, calcium stearate: 2%; The formula of soft glue slurry by weight percentage is plasticizer: 58%, adipic acid polyester: 8%, phenol-free stabilizer: 3%, heat-resistant oil: 3%, polyvinyl chloride paste resin: 28%; The firing temperature in step 4 is 250 degrees Celsius, the firing time is 800-900 seconds, the first cooling time in step 5 is 10-15 seconds, and the second cooling time in step 6 is 5-10 seconds; The firing temperature in step eight is 250 degrees Celsius, the firing time is 1200-1500 seconds, the first cooling time in step eight is 10-15 seconds, and the second cooling time is 5-10 seconds; The finished product in step eight has a hard glue inner layer of 70-80 degrees and a soft glue outer layer of 20-30 degrees.

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