Efficient injection molding equipment for floss picks

Abstract

The invention relates to the technical field of dental floss pick injection molding equipment, in particular to dental floss pick efficient injection molding equipment which comprises a rack, material injection units are symmetrically, vertically and slidably connected to the top of the rack, and discharging grooves are symmetrically formed in the inner bottom wall of an injection molding cavity; the synchronous frame is vertically and slidably connected to the inner wall of the upper end of the injection molding cavity and driven by a hydraulic telescopic cylinder at the top of the rack, connecting bases are symmetrically arranged at the top of the synchronous frame, and upper mold bases are symmetrically arranged at the bottom of the synchronous frame; a lower die holder; a material suction seat; provided is a material collecting vehicle. The device is reasonable in structure, automatic material taking, transferring and collecting are achieved through the material suction base, manual operation is replaced, the production efficiency is improved, and the labor intensity is reduced; manual contact is reduced, product damage and impurity mixing are avoided, and stable quality is guaranteed; linkage automation of the whole process of injection molding, material taking and material collecting is achieved, and the cooling and forming effects are optimized; the material collecting vehicle is convenient to transfer and monitor, and the material stabilizing assembly can be automatically lifted and quickly reset to adapt to continuous production.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of toothpick rod injection molding equipment, and in particular to a toothpick rod efficient injection molding equipment. BACKGROUND

[0002] In the toothpick rod production field, according to the combination mode of toothpick and rod body, it is mainly divided into two types of products: one is to directly integrally injection mold the toothpick and the toothpick rod body in the production process, and the toothpick and the rod body are inseparable; the other is to first injection mold the toothpick rod body (i.e. the rod body) alone, and then install the replaceable toothpick on the prefabricated rod body by manual or mechanical mode.

[0003] For the production of the second type of toothpick rod, the injection molding and material taking links of the rod body still have efficiency bottleneck in the industry at present, specifically, after the injection mold completes the molding of the rod body, the molded rod body is usually ejected from the cavity of the lower mold base by a ejector pin mechanism, and then the ejected rod body needs to be taken down from the surface of the mold plate manually and arranged and stacked manually. This manual material taking and arranging mode has obvious defects: on the one hand, the manual operation speed is limited, which is difficult to match the continuous production rhythm of the injection molding equipment, resulting in low overall production efficiency of the equipment; on the other hand, the long-time repetitive material taking and stacking operation is labor-intensive, which is easy to cause worker fatigue, which not only may affect the operation standardization, but also has the risk of product damage or impurity mixing due to human error, thereby affecting the quality stability of the product. SUMMARY

[0004] The present application aims to at least solve one of the technical problems in the related art to some extent.

[0005] To this end, the present application aims to provide a toothpick rod efficient injection molding equipment, which has reasonable structure, replaces manual operation by automatically taking, transferring and collecting materials by the material suction seat, improves production efficiency and reduces labor intensity; reduces manual contact, avoids product damage and impurity mixing, and ensures quality stability; realizes injection molding, material taking and material collecting linkage automation in the whole process, optimizes cooling and molding effect; the material collecting vehicle is designed for convenient transfer and monitoring, the material stabilizing assembly can be automatically lifted and quickly reset, and is suitable for continuous production.

[0006] To achieve the above-mentioned purpose, the present application provides a toothpick rod efficient injection molding equipment, comprising: a rack, a material injection unit is symmetrically and vertically connected to the top of the rack, an injection cavity is formed on the surface of the rack, a material discharge groove is symmetrically formed on the inner bottom wall of the injection cavity and is connected with the inside of a material collecting cavity on the surface of the rack, and a slide rail is fixedly connected to one side of the material discharge groove; Synchronous frame: vertically sliding connection in the upper end of the injection cavity wall, driven by the hydraulic telescopic cylinder on the top of the frame, the top of which is symmetrically provided with a connecting seat and connected with the injection unit, the bottom of which is symmetrically provided with an upper die seat, and the gate of the upper die seat is connected with the inside of the injection unit; Lower die seat: symmetrically fixed connection in the inner bottom wall of the injection cavity, corresponding to the position of the upper die seat, and located outside the discharge chute; Suction seat: symmetrically reverse sliding connection on the surface of the slide rail and located on one side of the top of the discharge chute, driven by the upper die seat; Material collecting vehicle: provided inside the material collecting cavity and connected with the material stabilizing assembly on the inner wall of the material collecting cavity, wherein the material stabilizing assembly is driven by the suction seat.

[0007] In addition, according to the above-mentioned toothpick high-efficiency injection molding equipment can also have the following additional technical features: Specifically, the injection unit includes a heating and insulation cylinder, a first driving motor, a support seat and a hopper, the heating and insulation cylinder is vertically slidingly connected to the top of the frame and is threadedly connected to the inner wall of the connecting seat, the output end of the heating and insulation cylinder is connected to the inside of the gate, the heating and insulation cylinder is provided with a feeding auger and is connected with the first driving motor on the top of the heating and insulation cylinder, the support seat is fixedly connected to the outer surface of the heating and insulation cylinder, and the hopper is fixedly connected to the inner wall of the support seat and is connected with the feeding end of the heating and insulation cylinder.

[0008] Specifically, the bottom of the upper die seat and the top of the lower die seat are provided with a die cavity matched with the outer dimensions of the toothpick, wherein the die cavity in the top of the lower die seat is provided with a pneumatic ejector pin, and the pneumatic ejector pin is connected with the air inlet end on the surface of the lower die seat through an air pipe; The inside of the upper die seat and the inside of the lower die seat are provided with cooling channels, respectively connected with the cooling end on the surface of the upper die seat and the lower die seat; Wherein, the air inlet end and the cooling end are both penetrated out of the frame.

[0009] Specifically, the bottom of the suction seat is provided with a negative pressure suction hole corresponding to the position of the die cavity, and the inside of the suction seat is provided with a negative pressure air duct, the input end of the negative pressure air duct is connected with the inside of the negative pressure suction hole, and the output end of the negative pressure air duct is connected with the inside of the air pipe end on the top of the suction seat; The connecting ear on the top of the suction seat is hingedly fixed with a connecting rod, the other end of the connecting rod is hingedly fixed with the connecting support surface of the upper die seat, one end of the bottom of the suction seat is penetrated into the frame through the strip-shaped slot in the inner bottom wall of the injection cavity, and a driving gear rack is fixedly connected, the driving gear rack is connected with the material stabilizing assembly.

[0010] Specifically, the material collection vehicle has an L-shaped structure, with a traveling wheel at the bottom of its horizontal part and limit posts evenly arranged at the top of its horizontal part. A lifting sleeve is fitted on the outer side of the limit posts. One end of the lifting sleeve is engaged and fixed to one end of the material stabilizing component. An observation window is provided on the outer surface of its vertical part, and a fixing block is provided on the inner surface of its vertical part, which is engaged and fixed to the elastic groove on the surface of the frame.

[0011] Specifically, the material stabilizing assembly includes a guide post, a threaded screw, a sliding seat, a load-bearing shaft, an elastic clamp, a first bevel gear, a second bevel gear, a driven gear, and a one-way transmission. The guide post is vertically fixed to the inner wall of the frame, the threaded screw is vertically rotatably connected to the inner wall of the frame and located on one side of the guide post, the sliding seat is sleeved on the outer side of the guide post and threadedly connected to the outer surface of the threaded screw, one end of the sliding seat penetrates into the material collection chamber and is vertically slidably connected to the inner wall of the material collection chamber, and the surface of the end of the sliding seat penetrating into the material collection chamber is symmetrically arranged. The device has a load-bearing shaft with an elastic clip on its surface. One end of the load-bearing shaft is slidably connected to the inner wall of a slot on the surface of the lifting sleeve. The elastic clip is engaged and fixed with a locking hole in the inner wall of the slot. The first bevel gear is fixedly connected to the top of the threaded screw. The second bevel gear is laterally rotatably connected to the inner wall of the frame and meshes with the first bevel gear. The driven gear is rotatably connected to the inner wall of the frame and is connected to the second bevel gear through the one-way transmission. The driven gear corresponds to the position of the drive gear frame and is meshed with it.

[0012] Specifically, the material stabilizing assembly further includes a lifting key cylinder, a pneumatic push rod, and a second drive motor. The second drive motor is fixedly connected to the inner wall of the frame and located on one side of the bottom of the threaded screw. The lifting key cylinder is rotatably connected to the inner wall of the lifting seat of the frame and is respectively sleeved on the bottom of the threaded screw and the outer side of the output end of the second drive motor. The lifting seat is driven by the pneumatic push rod. The inner wall of the lifting key cylinder is provided with keyways and key bars at positions corresponding to the surface of the threaded screw and the output end of the second drive motor.

[0013] Specifically, the frame surface is symmetrically provided with working cavities located outside the material collection cavity. Cabinet doors are provided at the outer ports of both sets of working cavities. One set of working cavities houses a hydraulic station assembly and a vacuum negative pressure assembly, while the other set houses a compressed gas assembly and a cooling water circulation assembly. The hydraulic station assembly and the vacuum negative pressure assembly are connected to the hydraulic telescopic cylinder and the material suction seat via connecting pipes, respectively. The compressed gas assembly is connected to the pneumatic ejector pin and the pneumatic push rod via connecting pipes, respectively. The cooling water circulation assembly is connected to the upper mold base and the lower mold base via connecting pipes, respectively. The hydraulic station assembly, the vacuum negative pressure assembly, the compressed gas assembly, and the cooling water circulation assembly are all connected to a PLC controller on the frame surface via wires to achieve data transmission and control command reception.

[0014] Specifically, limit guide rods and buffer cylinders are respectively provided at the corresponding positions of the bottom of the upper mold base and the top of the lower mold base, and at the corresponding positions of the surfaces of the two sets of suction seats. The limit guide rods are located inside the buffer cylinders and are slidably connected to the inner wall of the buffer cylinders.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Improve production efficiency and reduce labor intensity: The equipment replaces the traditional manual material handling and stacking operations by automatically picking up, transferring and collecting materials through the suction seat. It matches the continuous production rhythm of injection molding equipment, solves the problems of slow speed and high labor intensity of manual operation, and significantly improves overall production efficiency. 2. Ensure product quality stability: Automated material handling avoids the risk of product damage or impurity contamination caused by manual contact. At the same time, negative pressure adsorption and orderly stacking of material stabilizing components reduce product impact and ensure the appearance and structural integrity of dental floss sticks. 3. Achieve multi-stage linkage automation: The upper mold base and the suction base are linked by a connecting rod, and the suction base and the material stabilizing component are driven by a drive gear frame, forming a fully automated "injection-material picking-collection" process, reducing manual intervention and improving production continuity; 4. Optimized cooling and molding effect: The upper and lower mold bases have built-in cooling channels, which, together with the temperature control function of the heating and heat preservation cylinder, can accurately control the molding temperature and cooling rate of the material, thereby improving the molding quality and consistency of dental floss sticks. 5. Convenient material collection and reset design: The material collection cart adopts an L-shaped structure, equipped with wheels and an observation window, which facilitates material transfer and inventory monitoring; the material stabilizing component achieves automatic lifting and rapid reset through a one-way transmission and a second drive motor, adapting to continuous production needs. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of a high-efficiency injection molding equipment for dental floss sticks according to the present invention; Figure 2 This is a schematic diagram of the injection unit structure in a high-efficiency injection molding equipment for dental floss sticks according to the present invention; Figure 3 This is a schematic diagram of the upper mold base structure in a high-efficiency injection molding equipment for dental floss sticks according to the present invention; Figure 4 This is a schematic diagram of the drive gear structure in a high-efficiency injection molding equipment for dental floss sticks according to the present invention; Figure 5 This is a schematic diagram of the discharge trough structure in a high-efficiency injection molding equipment for dental floss sticks according to the present invention; Figure 6 This is a schematic diagram of the material collection cart structure in a high-efficiency injection molding equipment for dental floss sticks according to the present invention; Figure 7 This is a schematic diagram of the limiting column structure in a high-efficiency injection molding equipment for dental floss sticks according to the present invention; Figure 8 This is a schematic diagram of the material stabilizing component in a high-efficiency injection molding equipment for dental floss sticks according to the present invention.

[0018] As shown in the figure: 1. Frame; 11. Injection unit; 111. Heating and insulation cylinder; 112. First drive motor; 113. Support base; 114. Hopper; 12. Injection cavity; 13. Discharge chute; 14. Collection cavity; 15. Slide rail; 16. Strip trough; 2. Synchronizing frame; 21. Hydraulic telescopic cylinder; 22. Connecting seat; 3. Upper mold base; 31. Gate; 4. Lower mold base; 5. Material suction base; 6. Material collection cart; 7. Material stabilizing assembly; 41. Inlet end; 42. Cooling end; 51. Connecting rod; 52. Drive gear; 61. Traveling wheels; 62. Limiting posts; 76. Lifting sleeve; 63. Observation window; 64. Fixing blocks; 71. Guide post; 72. Threaded screw; 73. Shifter; 74. Load-bearing shaft; 75. Elastic clamp; 77. First bevel gear; 78. Second bevel gear; 79. Driven gear; 710. One-way transmission; 711. Lifting keyway; 712. Pneumatic push rod; 713. Second drive motor; 100. Cabinet door; 200. PLC controller; 300. Buffer column. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention. Rather, embodiments of the invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0020] The following description, in conjunction with the accompanying drawings, describes an embodiment of the present invention: a high-efficiency injection molding device for dental floss sticks.

[0021] like Figures 1-8 As shown, an embodiment of the present invention provides a high-efficiency injection molding device for dental floss picks, comprising: Frame 1: The top is symmetrically and vertically slidably connected to the injection unit 11, and the surface is provided with an injection cavity 12. The bottom wall of the injection cavity 12 is symmetrically provided with a discharge groove 13, which is connected to the inside of the material collection cavity 14 on the surface of the frame 1. A slide rail 15 is fixedly connected to one side of the discharge groove 13. Synchronous frame 2: It is vertically slidably connected to the inner wall of the upper end of the injection cavity 12 and driven by the hydraulic telescopic cylinder 21 at the top of the frame 1. A connecting seat 22 is symmetrically arranged on its top and connected to the injection unit 11. An upper mold base 3 is symmetrically arranged at its bottom, and the gate 31 of the upper mold base 3 is connected to the inside of the injection unit 11. Lower mold base 4: Symmetrically fixedly connected to the bottom wall of the injection cavity 12, corresponding to the position of the upper mold base 3, and located outside the discharge groove 13; Material suction seat 5: It is symmetrically and oppositely slidably connected to the surface of slide rail 15 and located on one side of the top of discharge groove 13, driven by upper mold base 3; Material collection cart 6: It is set inside the material collection chamber 14 and connected to the material stabilizing component 7 on the inner wall of the material collection chamber 14. The material stabilizing component 7 is driven by the suction seat 5.

[0022] Specifically, the present invention has a reasonable structure. It automatically picks up, transfers and collects materials through the suction seat 5, replacing manual operation, improving production efficiency and reducing labor intensity; it reduces manual contact, avoids product damage and impurity contamination, and ensures stable quality; it realizes full-process automation of injection molding, material picking and collection, and optimizes cooling and molding effects; the material collection cart 6 is designed for easy transfer and monitoring, and the material stabilizing component 7 can automatically lift and quickly reset, adapting to continuous production.

[0023] Its specific working principle is as follows: 1. Injection molding stage: The hydraulic telescopic cylinder 21 drives the synchronous frame 2 to descend, causing the upper mold base 3 and the lower mold base 4 to close. At the same time, the injection unit 11 moves down with the synchronous frame 2, and injects the molten material into the mold cavity of the upper and lower mold bases 4 through the gate 31 via the heating and heat preservation cylinder 111.

[0024] After the material is injected, the cooling water circulation component cools the mold cavity through the cooling channel to accelerate the molding of the dental floss bar; during the molding process, the heating and insulation cylinder 111 precisely controls the feeding amount through the material conveying auger.

[0025] 2. Material handling and transfer stage: After the molding is completed, the synchronous frame 2 drives the upper mold base 3 to rise and reset, and drives the suction seat 5 to move along the slide rail 15 to the top of the lower mold base 4 through the connecting rod 51.

[0026] The pneumatic ejector pin of the lower mold base 4 pushes the formed dental floss bar out of the mold cavity, and the suction seat 5 adsorbs the dental floss bar through the negative pressure suction hole; then the synchronous frame 2 drives the upper mold base 3 to descend, the suction seat 5 moves in the opposite direction to above the discharge groove 13, the negative pressure is released, and the dental floss bar falls into the collection cavity 14 through the discharge groove 13.

[0027] 3. Material collection and stabilization stage: After the dental floss falls into the collection chamber 14, it is sleeved on the limiting post 62 of the collection cart 6. During the movement of the suction seat 5, the drive gear frame 52 drives the threaded screw 72 of the stabilizing component 7 to rotate through gear transmission, so that the transfer seat 73 drives the lifting sleeve 76 to move down by the thickness of one dental floss, ensuring that the subsequent materials are stacked in an orderly manner.

[0028] The material stabilizing component 7 achieves unidirectional drive through the one-way transmission 710 to prevent the lifting sleeve 76 from moving in the opposite direction. After the collecting car 6 is full, it can be moved out by the walking wheels 61. After the lifting sleeve 76 is separated from the load-bearing shaft 74, the threaded screw 72 is driven to reverse through the second drive motor 713, so that the shift seat 73 and the load-bearing shaft 74 are reset to the initial height.

[0029] 4. Automated control logic: All components of the equipment (hydraulic telescopic cylinder 21, negative pressure system, pneumatic ejector pin, etc.) are linked through PLC controller 200. Sensors monitor the position and status of each component in real time to ensure that the "injection-cooling-material picking-collection" process runs automatically in a cycle according to the preset program.

[0030] In one embodiment of the present invention, such as Figure 2 As shown, the feeding unit 11 includes a heating and heat preservation cylinder 111, a first drive motor 112, a support base 113, and a hopper 114. The heating and heat preservation cylinder 111 is vertically slidably connected to the top of the frame 1 and threadedly connected to the inner wall of the connecting seat 22. The output end of the heating and heat preservation cylinder 111 is connected to the inside of the gate 31. The heating and heat preservation cylinder 111 has a built-in conveying auger, which is connected to the first drive motor 112 at the top of the heating and heat preservation cylinder 111. The support base 113 is fixedly connected to the outer surface of the heating and heat preservation cylinder 111. The hopper 114 is fixedly connected to the inner wall of the support base 113 and connected to the feeding end of the heating and heat preservation cylinder 111.

[0031] It should be noted that the heating and heat preservation cylinder 111 described in this embodiment is equipped with a heating component and a temperature control component. Solenoid valves are provided at the bottom of the hopper 114 and the bottom of the heating and heat preservation cylinder 111. The heating component, temperature control component and solenoid valve are all connected to the PLC controller 200 on the surface of the frame 1 through wires to realize data transmission and control command reception.

[0032] It should also be noted that, in order to facilitate the discharge of residual material inside the heating and insulation cylinder 111, a three-way pipe (not shown in the figure) is connected to the output end surface of the heating and insulation cylinder 111. One set of output ends of the three-way pipe is connected to the inside of the gate 31, and solenoid valves are provided on the surface of both sets of output pipes of the three-way pipe.

[0033] Specifically, the working principle of the material injection unit 11 is as follows: the hopper 114 feeds material into the heating and insulation cylinder 111 through the support base 113. The first drive motor 112 drives the built-in conveying auger to rotate and push the material to the output end. The heating and temperature control components of the heating and insulation cylinder 111 maintain the material in a molten state. The relevant solenoid valves are controlled by the PLC controller 200 to control the material feeding amount of the hopper 114 and the material conveying to the gate 31 through the three-way pipe. The other output end of the three-way pipe can open the solenoid valve when needed to discharge the residual material in the cylinder. The heating and insulation cylinder 111 is raised and lowered in linkage with the connecting base 22 and the synchronous frame 2 to ensure precise docking with the gate 31 of the upper mold base 3 and achieve stable material supply.

[0034] In one embodiment of the present invention, such as Figure 3 As shown, the bottom of the upper mold base 3 and the top of the lower mold base 4 are both provided with mold cavities that are adapted to the shape and size of the dental floss stick. The mold cavity at the top of the lower mold base 4 is equipped with a pneumatic ejector pin, which is connected to the air inlet end 41 on the surface of the lower mold base 4 through an air pipe. Cooling channels are provided inside the upper mold base 3 and the lower mold base 4, and the cooling channels are connected to the cooling ends 42 on the surfaces of the upper mold base 3 and the lower mold base 4, respectively. Both the air intake end 41 and the cooling end 42 extend out of the frame 1.

[0035] Specifically, the mold cavities at the bottom of the upper mold base 3 and the top of the lower mold base 4 are adapted to the shape of the dental floss bar for molding products. The pneumatic ejector pins built into the mold cavity of the lower mold base 4 are connected to the air inlet end 41 on the surface through an air pipe, which can receive external air source drive to eject the molded dental floss bar. The cooling channels inside the upper and lower mold bases 4 are respectively connected to the cooling end 42 on their respective surfaces, which can introduce external cooling medium to accelerate the cooling and shaping of the material in the mold cavity. Both the air inlet end 41 and the cooling end 42 extend out of the frame 1 for easy connection with external air circuits and cooling pipes.

[0036] In one embodiment of the present invention, such as Figure 3As shown, negative pressure suction holes are provided at the bottom of the suction seat 5 and the corresponding positions of the mold cavity. Negative pressure air passages are provided inside the suction seat 5. The input end of the negative pressure air passage is connected to the inside of the negative pressure suction hole, and the output end of the negative pressure air passage is connected to the inside of the air pipe end at the top of the suction seat 5. A connecting rod 51 is hinged to the connecting ear surface at the top of the suction seat 5. The other end of the connecting rod 51 is hinged to the connecting support surface of the upper mold seat 3. One end of the bottom of the suction seat 5 passes through the strip groove 16 in the bottom wall of the injection cavity 12 and enters the machine frame 1. A drive gear frame 52 is fixedly connected to it. The drive gear frame 52 is connected to the material stabilizing assembly 7.

[0037] Specifically, the negative pressure suction hole at the bottom of the suction seat 5 corresponds to the position of the mold cavity. It is connected to the top air pipe end through the internal negative pressure air channel. It can use the external negative pressure to generate suction force to grab the dental floss stick. Its top is hinged to the upper mold seat 3 through the connecting rod 51. It slides in the opposite direction as the upper mold seat 3 rises and falls, completing the picking and transferring action. One end of the bottom is inserted into the frame 1 and connected to the drive gear frame 52, which can drive the material stabilizing component 7 to operate and realize the linkage control of the material collection link.

[0038] In one embodiment of the present invention, such as Figure 7 As shown, the material collection vehicle 6 has an L-shaped structure. The bottom of its horizontal part is equipped with a traveling wheel 61, and the top of its horizontal part is evenly equipped with limit posts 62. The outer side of the limit posts 62 is fitted with a lifting sleeve 76. One end of the lifting sleeve 76 is locked and fixed to one end of the material stabilizing component 7. The outer surface of its vertical part is equipped with an observation window 63, and the inner surface of its vertical part is equipped with a fixing block 64, which is locked and fixed to the elastic slot on the surface of the frame 1.

[0039] Specifically, the material collection cart 6 is L-shaped, with the traveling wheels 61 at the bottom of the horizontal section for easy movement; the evenly distributed limiting posts 62 at the top are used to neatly stack the dental floss sticks; the outer lifting sleeve 76 is engaged with the material stabilizing component 7 and can be raised and lowered in conjunction with it to assist in orderly material collection; the observation window 63 on the outer side of the vertical section makes it easy to check the amount of material inside; the inner fixing block 64 is engaged with the elastic slot of the frame 1 to fix the position of the material collection cart 6 and prevent it from shifting during operation.

[0040] In one embodiment of the present invention, such as Figures 7-8As shown, the material stabilizing assembly 7 includes a guide post 71, a threaded screw 72, a shifter 73, a load-bearing shaft 74, an elastic clamp 75, a first bevel gear 77, a second bevel gear 78, a driven gear 79, and a one-way transmission 710. The guide post 71 is vertically fixed to the inner wall of the frame 1. The threaded screw 72 is vertically rotatably connected to the inner wall of the frame 1 and located on one side of the guide post 71. The shifter 73 is sleeved on the outer side of the guide post 71 and threadedly connected to the outer surface of the threaded screw 72. One end of the shifter 73 penetrates into the material collection chamber 14 and is vertically slidably connected to the inner wall of the material collection chamber 14. The surface is symmetrically provided with load-bearing shafts 74, and the surface of the load-bearing shafts 74 is provided with elastic clips 75. One end of the load-bearing shafts 74 is slidably connected to the inner wall of the slot on the surface of the lifting sleeve plate 76. The elastic clips 75 are engaged and fixed with the clip holes on the inner wall of the slot. The first bevel gear 77 is fixedly connected to the top of the threaded screw 72. The second bevel gear 78 is laterally rotatably connected to the inner wall of the frame 1 and meshes with the first bevel gear 77. The driven gear 79 is rotatably connected to the inner wall of the frame 1 and is connected to the second bevel gear 78 through a one-way transmission 710. The driven gear 79 is positioned corresponding to the drive gear frame 52 and is meshed with it.

[0041] It should be noted that the one-way drive 710 described in this embodiment is a ratchet-type one-way drive.

[0042] Specifically, the working principle of the material stabilizing component 7 is as follows: the drive gear 52 meshes with the driven gear 79. When the suction seat 5 moves, the drive gear 52 drives the driven gear 79 to rotate, and transmits power to the second bevel gear 78 through the one-way transmission 710. The second bevel gear 78 meshes with the first bevel gear 77, driving the threaded screw 72 to rotate. When the threaded screw 72 rotates, the shift seat 73 sleeved on the guide post 71 moves in the vertical direction. Its load-bearing shaft 74 extending to the collection chamber 14 is engaged with the lifting sleeve 76 through the elastic clip 75, thereby driving the lifting sleeve 76 to rise and fall synchronously. The one-way transmission 710 ensures that the power is transmitted only in one direction, so that the lifting sleeve 76 only moves down with the material taking action of the suction seat 5, realizing the orderly stacking of dental floss bars; the guide post 71 ensures that the shift seat 73 rises and falls smoothly, improving the stability of material collection.

[0043] In one embodiment of the present invention, such as Figure 8 As shown, the material stabilizing assembly 7 also includes a lifting key cylinder 711, a pneumatic push rod 712, and a second drive motor 713. The second drive motor 713 is fixedly connected to the inner wall of the frame 1 and is located on one side of the bottom of the threaded screw 72. The lifting key cylinder 711 is rotatably connected to the inner wall of the lifting seat of the frame 1 and is respectively sleeved on the bottom of the threaded screw 72 and the outer side of the output end of the second drive motor 713. The lifting seat is driven by the pneumatic push rod 712. The inner wall of the lifting key cylinder 711 is provided with keyways and key bars respectively at positions corresponding to the surface of the threaded screw 72 and the output end surface of the second drive motor 713.

[0044] It should be noted that the material stabilizing assembly 7 also includes a position sensor (not shown in the figure) installed on the inner wall of the material collection chamber 14. When the position sensor detects that the material collection cart 6 has moved out, the position sensor sends the data to the PLC controller 200, which then controls the pneumatic push rod 712 and the second drive motor 713 to run sequentially.

[0045] Specifically, the lifting key cylinder 711, pneumatic push rod 712, and second drive motor 713 of the material stabilizing assembly 7 are used to reset the transfer seat 73: After the collection car 6 moves out, the position sensor transmits the signal to the PLC controller 200. The PLC controller 200 first controls the pneumatic push rod 712 to drive the lifting seat to rise, so that the keyway on the inner wall of the lifting key cylinder 711 engages with the key strip on the surface of the threaded screw 72 and the key strip at the output end of the second drive motor 713 to achieve power connection; then the second drive motor 713 starts, and drives the threaded screw 72 to reverse through the lifting key cylinder 711, so that the transfer seat 73 moves up and resets along the guide post 71, preparing for the next round of material collection.

[0046] In one embodiment of the present invention, such as Figure 1 As shown, the frame 1 has symmetrically arranged working cavities on its surface, located outside the material collection cavity 14. Both sets of working cavities have cabinet doors 100 at their outer ports. One set of working cavities contains a hydraulic station assembly and a vacuum negative pressure assembly, while the other set of working cavities contains a compressed gas assembly and a cooling water circulation assembly. The hydraulic station assembly and the vacuum negative pressure assembly are connected to the hydraulic telescopic cylinder 21 and the suction seat 5 via connecting pipes, respectively. The compressed gas assembly is connected to the pneumatic ejector pin and the pneumatic push rod 712 via connecting pipes, respectively. The cooling water circulation assembly is connected to the upper mold base 3 and the lower mold base 4 via connecting pipes. The hydraulic station assembly, the vacuum negative pressure assembly, the compressed gas assembly, and the cooling water circulation assembly are all connected to the PLC controller 200 on the surface of the frame 1 via wires to realize data transmission and control command reception.

[0047] It should be noted that the hydraulic station components, vacuum negative pressure components, compressed gas components and cooling water circulation components described in this embodiment are all existing technologies, and therefore will not be described in detail here.

[0048] Specifically, the frame 1 has symmetrical working chambers located outside the material collection chamber 14 on its surface, with a cabinet door 100 at the outer end. One set of working chambers has a built-in hydraulic station assembly and a vacuum negative pressure assembly, which are connected to the hydraulic telescopic cylinder 21 and the suction seat 5 through pipelines to provide power and negative pressure. Another set has a built-in compressed gas assembly and a cooling water circulation assembly, which are connected to the pneumatic ejector pin, pneumatic push rod 712 and the upper and lower mold bases 4 through pipelines to provide air source and cooling. All components are connected to the PLC controller 200 to realize data transmission and command control, and to coordinate the operation of the equipment.

[0049] In one embodiment of the present invention, such as Figures 3-4 As shown, limit guide rods and buffer cylinders 300 are respectively provided at the corresponding positions of the bottom of the upper mold base 3 and the top of the lower mold base 4, and at the corresponding positions of the surfaces of the two sets of suction seats 5. The limit guide rods are located inside the buffer cylinders 300 and are slidably connected to the inner wall of the buffer cylinders 300.

[0050] Specifically, at the corresponding positions of the bottom of the upper mold base 3 and the top of the lower mold base 4, and at the corresponding positions of the surfaces of the two sets of suction seats 5, there are respectively a limiting guide rod and a buffer cylinder 300. The limiting guide rod is located inside the buffer cylinder 300 and is slidably connected to its inner wall. In this design, the limiting guide rod plays a positioning and guiding role, ensuring that the upper mold base 3 and the lower mold base 4 are accurately closed and the two sets of suction seats 5 move relatively smoothly. The buffer cylinder 300 can provide buffering when the parts are close to or in contact, reduce collision impact, and protect equipment parts and products.

[0051] In summary, the high-efficiency injection molding equipment for dental floss sticks according to embodiments of the present invention has a reasonable structure. The suction seat 5 automatically picks up, transfers, and collects materials, replacing manual operation, improving production efficiency, and reducing labor intensity. It also reduces manual contact, avoids product damage and impurity contamination, and ensures stable quality. Furthermore, it achieves full-process automation of injection molding, material picking, and material collection, optimizing cooling and molding effects. The material collection cart 6 is designed for easy transfer and monitoring, and the material stabilizing component 7 can automatically lift and quickly reset, adapting to continuous production.

[0052] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0054] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A high-efficiency injection molding equipment for dental floss picks, characterized in that, include: The frame (1) has a symmetrical vertical sliding connection to the top of the injection unit (11), and an injection cavity (12) is opened on the surface. The bottom wall of the injection cavity (12) is symmetrically provided with a discharge groove (13), which is connected to the inside of the material collection cavity (14) on the surface of the frame (1). A slide rail (15) is fixedly connected to one side of the discharge groove (13). Synchronous frame (2): It is vertically slidably connected to the inner wall of the upper end of the injection cavity (12), driven by the hydraulic telescopic cylinder (21) at the top of the frame (1), and has a connecting seat (22) symmetrically arranged at its top and connected to the injection unit (11). It has an upper mold base (3) symmetrically arranged at its bottom, and the gate (31) of the upper mold base (3) is connected to the inside of the injection unit (11). Lower mold base (4): symmetrically fixedly connected to the bottom wall of the injection cavity (12), corresponding to the position of the upper mold base (3), and located outside the discharge groove (13); Material suction seat (5): symmetrically and in opposite directions, it is slidably connected to the surface of the slide rail (15) and located on the top side of the discharge groove (13), and is driven by the upper mold base (3); Collecting cart (6): It is located inside the collecting chamber (14) and connected to the material stabilizing component (7) on the inner wall of the collecting chamber (14), wherein the material stabilizing component (7) is driven by the suction seat (5).

2. The high-efficiency injection molding equipment for dental floss sticks according to claim 1, characterized in that, The material injection unit (11) includes a heating and heat preservation cylinder (111), a first drive motor (112), a support base (113), and a hopper (114). The heating and heat preservation cylinder (111) is vertically slidably connected to the top of the frame (1) and threadedly connected to the inner wall of the connecting seat (22). The output end of the heating and heat preservation cylinder (111) is connected to the inside of the gate (31). The heating and heat preservation cylinder (111) has a built-in material conveying auger and is connected to the first drive motor (112) at the top of the heating and heat preservation cylinder (111). The support base (113) is fixedly connected to the outer surface of the heating and heat preservation cylinder (111). The hopper (114) is fixedly connected to the inner wall of the support base (113) and connected to the feed end of the heating and heat preservation cylinder (111).

3. The high-efficiency injection molding equipment for dental floss sticks according to claim 1, characterized in that, The bottom of the upper mold base (3) and the top of the lower mold base (4) are both provided with mold cavities that are adapted to the external dimensions of the dental floss stick. The mold cavity at the top of the lower mold base (4) is equipped with a pneumatic ejector pin, which is connected to the air inlet end (41) on the surface of the lower mold base (4) through an air pipe. Cooling channels are provided inside the upper mold base (3) and the lower mold base (4), and the cooling channels are connected to the cooling ends (42) on the surfaces of the upper mold base (3) and the lower mold base (4), respectively. Both the air intake end (41) and the cooling end (42) extend through the outside of the frame (1).

4. The high-efficiency injection molding equipment for dental floss sticks according to claim 1, characterized in that, The bottom of the suction seat (5) is provided with negative pressure suction holes corresponding to the position of the mold cavity. The suction seat (5) is provided with a negative pressure air channel. The input end of the negative pressure air channel is connected to the inside of the negative pressure suction hole, and the output end of the negative pressure air channel is connected to the inside of the air pipe end at the top of the suction seat (5). A connecting rod (51) is hinged to the connecting ear surface at the top of the suction seat (5). The other end of the connecting rod (51) is hinged to the connecting support surface of the upper mold base (3). One end of the bottom of the suction seat (5) passes through the strip groove (16) in the bottom wall of the injection cavity (12) and enters the machine frame (1), and is fixedly connected to the drive gear frame (52). The drive gear frame (52) is connected to the material stabilizing assembly (7).

5. The high-efficiency injection molding equipment for dental floss sticks according to claim 1, characterized in that, The material collection vehicle (6) has an L-shaped structure. The bottom of its horizontal part is provided with a traveling wheel (61), and the top of its horizontal part is provided with limit posts (62). The outer side of the limit posts (62) is fitted with a lifting sleeve (76). One end of the lifting sleeve (76) is locked and fixed to one end of the material stabilizing component (7). The outer surface of its vertical part is provided with an observation window (63), and the inner surface of its vertical part is provided with a fixing block (64), which is locked and fixed to the elastic slot on the surface of the frame (1).

6. The high-efficiency injection molding equipment for dental floss sticks according to claim 4, characterized in that, The material stabilizing assembly (7) includes a guide post (71), a threaded screw (72), a shifter (73), a load-bearing shaft (74), an elastic clip (75), a first bevel gear (77), a second bevel gear (78), a driven gear (79), and a one-way transmission (710). The guide post (71) is vertically fixed to the inner wall of the frame (1). The threaded screw (72) is vertically rotatably connected to the inner wall of the frame (1) and located on one side of the guide post (71). The shifter (73) is sleeved on the outside of the guide post (71) and threadedly connected to the outer surface of the threaded screw (72). One end of the shifter (73) penetrates into the inside of the collection chamber (14) and is vertically slidably connected to the inner wall of the collection chamber (14). One end surface of the part is symmetrically provided with a load-bearing shaft (74), and the surface of the load-bearing shaft (74) is provided with the elastic clip (75). One end of the load-bearing shaft (74) is slidably connected to the inner wall of the slot on the surface of the lifting sleeve (76). The elastic clip (75) is engaged and fixed with the clip hole on the inner wall of the slot. The first bevel gear (77) is fixedly connected to the top of the threaded screw (72). The second bevel gear (78) is laterally rotatably connected to the inner wall of the frame (1) and meshes with the first bevel gear (77). The driven gear (79) is rotatably connected to the inner wall of the frame (1) and is connected to the second bevel gear (78) through the one-way transmission (710). The driven gear (79) is positioned opposite to the drive gear frame (52) and is meshed.

7. The high-efficiency injection molding equipment for dental floss sticks according to claim 6, characterized in that, The material stabilizing assembly (7) further includes a lifting key cylinder (711), a pneumatic push rod (712), and a second drive motor (713). The second drive motor (713) is fixedly connected to the inner wall of the frame (1) and located on one side of the bottom of the threaded screw (72). The lifting key cylinder (711) is rotatably connected to the inner wall of the lifting seat of the frame (1) and is respectively sleeved on the bottom of the threaded screw (72) and the outer side of the output end of the second drive motor (713). The lifting seat is driven by the pneumatic push rod (712). The inner wall of the lifting key cylinder (711) is provided with keyways and key bars respectively at positions corresponding to the surface of the threaded screw (72) and the output end surface of the second drive motor (713).

8. The high-efficiency injection molding equipment for dental floss picks according to claim 7, characterized in that, The frame (1) has symmetrical working cavities on its surface and is located outside the material collection cavity (14). Both sets of working cavities have cabinet doors (100) at their outer ports. One set of working cavities is equipped with a hydraulic station assembly and a vacuum negative pressure assembly, while the other set of working cavities is equipped with a compressed gas assembly and a cooling water circulation assembly. The hydraulic station assembly and the vacuum negative pressure assembly are connected to the hydraulic telescopic cylinder (21) and the suction seat (5) respectively through connecting pipes. The compressed gas assembly is connected to the pneumatic ejector pin and the pneumatic push rod (712) respectively through connecting pipes. The cooling water circulation assembly is connected to the upper mold base (3) and the lower mold base (4) respectively through connecting pipes. The hydraulic station assembly, the vacuum negative pressure assembly, the compressed gas assembly and the cooling water circulation assembly are all connected to the PLC controller (200) on the surface of the frame (1) through wires to realize data transmission and control command reception.

9. The high-efficiency injection molding equipment for dental floss sticks according to claim 1, characterized in that, Limiting guide rods and buffer cylinders (300) are respectively provided at the bottom of the upper mold base (3) and the top of the lower mold base (4) and at the surface of the two sets of suction seats (5). The limiting guide rods are located inside the buffer cylinders (300) and are slidably connected to the inner wall of the buffer cylinders (300).

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