A plasticizing reduction molding machine

Abstract

The invention discloses a plasticizing reduction molding machine, comprising a frame, a fixed mold is fixedly arranged on the top of the frame, a moving mold frame is slidably arranged in the frame, and a moving mold is fixedly arranged in the moving mold frame; a feeding system, a hydraulic system, a steam system, an air system, a cooling water system, a mold temperature control system, a vacuum system and a central energy distributor are also fixedly arranged on the frame, the feeding system is connected with a mold cavity of the moving mold through a feeding pipeline, the hydraulic system is connected with the moving mold frame to control the opening and closing of the fixed mold and the moving mold and the locking state; the air system is connected with the mold cavities of the fixed mold and the moving mold, and the central energy distributor cooperates with the steam system and the air system; at the same time, the air system also cooperates with the feeding system to pressurize the feeding system; compared with the prior art, the invention can effectively regulate the temperature of the material added into the mold cavity after the mold is closed, thereby forming a plasticized leather grain layer on the surface of the formed product, thereby improving the quality of the product.

Description

Technical Field

[0001] The invention relates to the technical field of molding machine structures, and in particular to a plasticizing reduction molding machine. Background Art

[0002] EPP (Expanded polypropylene) is a highly crystalline polymer / gas composite material with excellent performance, that is, polypropylene plastic foam material. With its unique and superior performance, it has become the fastest growing new environmentally friendly pressure-resistant buffer insulation material. EPP products have excellent shock-absorbing performance, high recovery rate after deformation, good heat resistance, chemical resistance, oil resistance and heat insulation. In addition, its light weight can greatly reduce the weight of items. EPP is also an environmentally friendly material that can be recycled and reused, can be naturally degraded, and will not cause white pollution.

[0003] Due to the above advantages of EPP, its application fields are becoming more and more extensive. For example, IT products, electronic communication equipment, precision instruments and meters have begun to use EPP as packaging materials in large quantities. Another particularly important application field is the large-scale application in the automotive industry: car bumpers, car side shockproof cores, advanced safety car seats, tool boxes, dashboards, etc. According to statistical data: currently each car uses an average of 100 to 130 kg of plastic, of which about 4 to 6 kg of EPP plastic is used. The field of use also includes the boxes used by the current takeaway company's express riders to hold takeaways.

[0004] The existing EPP plasticizing molding machine cannot reasonably adjust the heating temperature and cooling temperature during the production process, resulting in relatively low quality of the products produced by it. In addition, the hardness and strength of the plasticized layer on the surface of the products produced by the EPP plasticizing molding machine are insufficient, and the production cycle is long. Summary of the invention

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a plasticizing reduction molding machine to solve the problems in the prior art, that the quality of the products prepared by it is relatively low due to the inability to reasonably adjust the heating temperature and the cooling temperature, and that the hardness and strength of the plasticized layer on the surface of the product prepared by the EPP plasticizing molding machine are insufficient, and the production cycle is long.

[0006] To achieve the above object, the present invention adopts the following technical solution: a plasticizing reduction molding machine, comprising a frame, a fixed mold is fixedly arranged on the top of the frame, a moving mold frame is slidably arranged in the frame, and a moving mold for cooperating with the fixed mold is fixedly arranged in the moving mold frame;

[0007] The frame is also fixedly provided with a feeding system, a hydraulic system, a steam system, an air system, a cooling water system, a mold temperature control system, a vacuum system and a central energy distributor. The feeding system is connected with the mold cavity of the transfer mold through a feeding pipe, and the hydraulic system is connected with the transfer mold frame to control the opening and closing of the fixed mold and the transfer mold and the locking state;

[0008] The steam system is connected to the mold cavities of the fixed mold and the movable mold, and is used to heat the fixed mold and the movable mold;

[0009] The mold temperature control system is connected to the heating channels provided in the fixed mold and the movable mold, and is used to preheat the fixed mold and the movable mold;

[0010] The cooling water system is connected to the mold cavities of the fixed mold and the movable mold, and is used to cool the fixed mold and the movable mold;

[0011] The vacuum system is connected to the mold cavities of the fixed mold and the movable mold, and is used to cool the fixed mold and the movable mold;

[0012] The air system is connected to the mold cavities of the fixed mold and the movable mold, and is used to cool down the products in the fixed mold and the movable mold and demold the products; and the central energy distributor cooperates with the steam system and the air system to adjust the steam flow rate entering the mold cavities of the fixed mold and the movable mold from the steam system and the air flow rate entering the mold cavities of the fixed mold and the movable mold from the air system, and is also used for overpressure regulation in the mold cavities of the fixed mold and the movable mold; at the same time, the air system also cooperates with the feeding system to pressurize the feeding system.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. After the transfer mold is fixedly installed in the transfer mold frame, the transfer mold frame is driven by the hydraulic system to move the transfer mold toward the fixed mold, so that the fixed mold and the transfer mold are closed and locked; then the mold temperature control system preheats the fixed mold and the transfer mold to make the fixed mold and the transfer mold reach the set preheating temperature; the rear feeding system feeds the fixed mold and the transfer mold cavity through the feeding pipe, and at this time, the air system cooperates with the feeding system to pressurize the feeding into the cavity of the fixed mold and the transfer mold to increase the speed of the material entering the cavity of the fixed mold and the transfer mold, and at the same time make the material more densely distributed in the cavity of the fixed mold and the transfer mold; after the feeding is completed, the steam system is used to heat the cavity of the fixed mold and the transfer mold, so that the materials in the cavity of the fixed mold and the transfer mold are melted and bonded together to form; after a period of forming, cooling water or air is introduced into the cavity of the fixed mold and the transfer mold through the cooling water system and the air system to cool the formed product, so that the formed product A plasticized leather grain layer is formed on the surface of the product, so that the formed plasticized leather grain layer has sufficient hardness and strength; then the vacuum system is used to vacuum the mold cavities of the fixed mold and the mobile mold, on the one hand to cool the molded product, and on the other hand to extract the cooling water in the mold cavities of the fixed mold and the mobile mold; then the hydraulic system moves the mobile mold frame away from the fixed mold, so that the fixed mold and the mobile mold are released from the locked state and then the mold is opened. After the mold opening is completed, the product can be taken out; the steam volume and air flow entering the mold cavities of the fixed mold and the mobile mold after the mold is closed are controlled by the central energy distributor, so that the heating temperature, cooling temperature, heating rate and cooling rate in the mold cavities of the fixed mold and the mobile mold can be adjusted. When the pressure in the mold cavities of the fixed mold and the mobile mold is over-pressured, the mold cavities of the fixed mold and the mobile mold are depressurized by exhausting the central energy distributor to produce excellent products, while also speeding up the production cycle of the products;

[0015] 2. The appearance of the product can be changed by the mold cavity of the fixed mold and the movable mold. Exquisite patterns can be added to the surface of the product to make the appearance of the product more beautiful. The plasticization thickness of the product can be adjusted according to the actual needs of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of an embodiment of the present invention Figure 1 ;

[0017] Figure 2 A schematic diagram of the structure of an embodiment of the present invention Figure 2 ;

[0018] Figure 3 A schematic diagram of the structure of an embodiment of the present invention Figure 3 ;

[0019] Figure 4 It is a structural schematic diagram of a feeding system in one embodiment of the present invention;

[0020] Figure 5for Figure 4 Front cross-sectional view with the discharge connector removed;

[0021] Figure 6 for Figure 5 Enlarged view of part A in the middle;

[0022] Figure 7 for Figure 4 Front cross-sectional view of the center discharge connector. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below through specific embodiments:

[0024] The reference numerals in the drawings of the specification include: frame 1, mold transfer frame 2, fixed mold 3, central energy distributor 4, steam inlet pipe 5, air inlet pipe 6, barrel 7, air guide pipe 8, locking cylinder 9, push mold cylinder 10, water storage tank 11, liquid inlet pipe 12, liquid guide pipe 13, vacuum box 14, fixed mold frame 101, rear frame 102, guide column 103, square frame 15, positioning plate 16, support screw 17, barrel 19, bottom plate 20, discharge joint 21, second material sealing plug 22, material guide partition 23, feed chamber 2 4. Air guide cavity 28, discharge hole 29, air guide hole 30, material guide cylinder 31, suction pipe 32, pressurized air pipe 33, pressure relief pipe 34, fixing sleeve 35, motor 36, annular material guide slope 37, reinforcement plate 38, wear-resistant gasket 39, material guide cylinder 211, quick-release connector 212, hose connector 213, connecting sleeve 2121, limiting ring 2122, adjusting ball 2123, adjusting sleeve 2124, annular elastic protrusion 2125, adjusting spring 2126, annular protrusion 2127, first material sealing plug 40.

[0025] Combination Figure 1 and Figure 2The embodiment of the present invention proposes a plasticizing reduction molding machine, including a frame 1, a fixed mold 3 is fixedly arranged on the top of the frame 1, a moving mold frame 2 is slidably arranged in the frame 1, a moving mold for cooperating with the fixed mold 3 is fixedly arranged in the moving mold frame 2, and a feeding system, a hydraulic system, a steam system, an air system, a cooling water system, a mold temperature control system, a vacuum system and a central energy distributor 4 are also fixedly arranged on the frame 1, the feeding system is connected with the mold cavity of the moving mold through a feeding pipe, the hydraulic system is connected with the moving mold frame 2 to control the opening and closing of the fixed mold 3 and the moving mold and the locking state; the steam system is connected with the mold cavity of the fixed mold 3 and the moving mold for heating the fixed mold 3 and the moving mold; the mold temperature control system is connected with the heating passages provided in the fixed mold 3 and the moving mold The cooling water system is connected with the mold cavities of the fixed mold 3 and the mobile mold to cool the fixed mold 3 and the mobile mold; the vacuum system is connected with the mold cavities of the fixed mold 3 and the mobile mold to cool the fixed mold 3 and the mobile mold; the air system is connected with the mold cavities of the fixed mold 3 and the mobile mold to cool the products in the fixed mold 3 and the mobile mold and demold the products; and the central energy distributor 4 cooperates with the steam system and the air system to adjust the steam flow rate entering the mold cavities of the fixed mold 3 and the mobile mold and the air flow rate entering the mold cavities of the fixed mold 3 and the mobile mold by the air system, and is also used for overpressure regulation in the mold cavities of the fixed mold 3 and the mobile mold; at the same time, the air system also cooperates with the feeding system to pressurize the feeding system.

[0026] During operation, after the movable mold is fixedly installed in the movable mold frame 2, the movable mold frame 2 is driven by the hydraulic system to move the movable mold toward the fixed mold 3, so that the fixed mold 3 and the movable mold are closed and locked; then the mold temperature control system preheats the mold cavities of the fixed mold 3 and the movable mold, so that the mold cavities of the fixed mold 3 and the movable mold reach the set preheating temperature; the rear feeding system feeds the mold cavities of the fixed mold 3 and the movable mold through the feeding pipe. At this time, the air system cooperates with the feeding system to pressurize and feed the mold cavities of the fixed mold 3 and the movable mold to increase the speed at which the material enters the mold cavities of the fixed mold 3 and the movable mold, and at the same time makes the material more densely distributed in the mold cavities of the fixed mold 3 and the movable mold; after the feeding is completed, the mold cavities of the fixed mold 3 and the movable mold are heated by the steam system, so that the materials in the mold cavities of the fixed mold 3 and the movable mold are melted and bonded together to form; after forming for a period of time, the cooling system is used The cooling water system and the air system are used to introduce cooling water or air into the mold cavities of the fixed mold 3 and the movable mold to cool the molded product and form a plasticized leather grain layer on the surface of the molded product; then the vacuum system is used to vacuum the mold cavities of the fixed mold 3 and the movable mold to cool the molded product on the one hand and to extract the cooling water in the mold cavities of the fixed mold 3 and the movable mold on the other hand; then the hydraulic system moves the movable mold frame 2 away from the fixed mold 3, so that the fixed mold 3 and the movable mold are released from the locked state and then the mold is opened, and the product can be taken out after the mold opening is completed; the central energy distributor 4 is used to control the steam volume and air flow entering the mold cavities of the fixed mold 3 and the movable mold after the mold is closed, so that the heating temperature, cooling temperature, heating rate and cooling rate in the mold cavities of the fixed mold 3 and the movable mold can be adjusted to produce excellent products.

[0027] Among them, the mold transfer frame 2 and the central energy distributor 4 are both existing structures and will not be described in detail in this solution; and the mold temperature control system is an existing heating device and will not be described in detail here.

[0028] Combination Figure 1 and Figure 2According to another embodiment of the present invention, the plasticizing reduction molding machine further includes structural optimization of the steam system and the air system, and the mold cavity of the mold transfer is connected to the steam inlet pipe of the mold transfer frame 2 through a gas duct, the steam system includes a steam inlet pipe 5 connected to the first air inlet of the central energy distributor 4, and the two air outlets of the central energy distributor 4 are connected to the steam inlet pipe of the mold transfer frame 2 and the mold cavity of the fixed mold 3 in a one-to-one correspondence, and the air system includes an air inlet pipe 6 connected to the second air inlet of the central energy distributor 4, and the first air inlet and the second air inlet are both connected to the two air outlets; when the mold cavities of the fixed mold 3 and the mold transfer are heated after the mold is closed, the steam inlet pipe 5 introduces the heating steam, which is controlled by the central energy distributor 4 for flow regulation and control, and then introduced into the gas duct from the steam inlet pipe of the mold transfer frame 2 and enters The mold cavities of the fixed mold 3 and the movable mold; when air cooling is required in the mold cavities of the fixed mold 3 and the movable mold, the cooling air introduced by the air inlet pipe 6 is introduced into the central energy distributor 4 from the second air inlet port, and then introduced into the gas duct from the steam inlet pipe of the movable mold frame 2, and then enters the mold cavities of the fixed mold 3 and the movable mold; thereby, the channels formed in the steam inlet pipe of the central energy distributor 4 and the movable mold frame 2 are reasonably allocated and used, so as to reduce the investment in the equipment structure and reduce the cost of the plasticizing reduction molding machine; wherein, the two air outlets of the central energy distributor 4 are also connected to a pressure relief pipe, and when overpressure occurs in the mold cavities of the fixed mold 3 and the movable mold during operation, the air is exhausted through the pressure relief pipe to relieve the pressure in the mold cavities of the fixed mold 3 and the movable mold; and a muffler is installed on the pressure relief pipe, and the muffler is used to perform noise reduction treatment during the pressure relief process to reduce noise.

[0029] like Figure 2 As shown, according to another embodiment of the present invention, the plasticizing reduction molding machine also includes structural optimization of the feeding system, and the adopted feeding system includes a plurality of barrels 7 fixedly arranged on the frame 1, and the discharge port of each barrel 7 is connected with the mold cavity of the shifting mold through a material guide pipe, and the feed port of each barrel 7 is connected with the air inlet pipe 6 through an air guide pipe 8; material is added into the barrel 7 from the feed port of the barrel 7, and the barrel 7 guides the material into the mold cavity of the fixed mold 3 and the shifting mold after the mold is closed through the material guide pipe; the feed port of the barrel 7 is connected to the air inlet pipe 6 through the air guide pipe 8 to pressurize the barrel 7, thereby increasing the feeding speed of the barrel 7 into the mold cavity of the fixed mold 3 and the shifting mold after the mold is closed.

[0030] There are two barrels 7 in this embodiment, which can be used simultaneously or one at a time.

[0031] Combination Figure 1 and Figure 2According to another embodiment of the present invention, the plasticizing-reduction molding machine further includes structural optimization of the hydraulic system. The hydraulic system adopted includes a hydraulic station and a plurality of locking cylinders 9 and a plurality of ejecting cylinders 10 fixedly arranged on the frame 1. The plurality of locking cylinders 9 and the plurality of ejecting cylinders 10 are powered by the hydraulic station. The piston rods of the plurality of locking cylinders 9 and the plurality of ejecting cylinders 10 are connected to the end surface of the mold shifting frame 2 away from the fixed mold 3, and the extension and retraction directions of the piston rods of the plurality of locking cylinders 9 and the plurality of ejecting cylinders 10 are arranged along the moving direction of the mold shifting frame 2.

[0032] The hydraulic station provides power to enable multiple push cylinders 10 to be telescopically adjusted to open and close the fixed mold 3 and the movable mold; at the same time, the hydraulic station provides power to enable multiple locking cylinders 9 to lock the fixed mold 3 and the movable mold after mold closing, so as to improve the stability and sealing of the fixed mold 3 and the movable mold after mold closing.

[0033] In this embodiment, there are two push-die cylinders 10, which are distributed on different sides of the mold shifting frame 2; there are four locking cylinders 9, and two locking cylinders 9 are distributed on both sides of each push-die cylinder 10; the arrangement of the push-die cylinders 10 and the locking cylinders 9 is to make the mold shifting frame 2 more stable during movement.

[0034] Combination Figure 1 and Figure 2 According to another embodiment of the present invention, the plasticizing-reduction molding machine further includes structural optimization of the cooling water system. The cooling water system includes a water tank 11 fixedly arranged on the top of the frame 1, and a liquid inlet pipe 12 is connected to the side wall of the water tank 11. The bottom of the water tank 11 is connected to the mold cavity of the fixed mold 3 and the movable mold through a liquid guide pipe 13, and the top of the water tank 11 is connected to the air inlet pipe 6 through a pressurized pipe.

[0035] The liquid inlet pipe 12 guides the cooling water into the water tank 11 and then into the mold cavity of the fixed mold 3 and the shifting mold after mold closing through the liquid guide pipe 13 for cooling. The arrangement position of the water tank 11 and the connection of the air inlet pipe 6 with the water tank 11 through the pressure pipe are to speed up the speed at which the cooling water enters the mold cavity of the fixed mold 3 and the shifting mold after mold closing to improve the cooling efficiency.

[0036] Combination Figure 1 and Figure 2 According to another embodiment of the present invention, the plasticizing-reduction molding machine further includes structural optimization of the vacuum system, and the vacuum system used includes a vacuum box 14 fixedly installed at the bottom of the frame 1, and the vacuum box 14 is connected to the mold cavities of the fixed mold 3 and the movable mold.

[0037] The vacuum box 14 is used to evacuate the mold cavities of the fixed mold 3 and the movable mold after mold closing, so as to cool down the molded product and extract the cooling water in the mold cavities of the fixed mold 3 and the movable mold.

[0038] Combination Figure 1 and Figure 3 According to another embodiment of the present invention, the plasticizing reduction molding machine also includes structural optimization of the frame 1. The frame 1 used includes a solid mold frame 101 and a rear frame 102. The solid mold frame 101 and the rear frame 102 are connected by multiple guide columns 103. The mold transfer frame 2 is slidably connected to each guide column 103. The top of the solid mold frame 101 is a square frame 15 with mounting holes formed on the inner side after being connected in sequence by multiple connecting columns. The fixed mold 3 is fixedly arranged on one side of the square frame 15 close to the mold transfer frame 2. A cooling frame that seals one end of the mounting hole is fixedly connected to the fixed mold 3, and multiple support components are used to support and fix the cooling frame in the mounting hole.

[0039] The solid mold frame 101 and the rear frame 102 are connected into a whole by multiple guide columns 103. At the same time, the multiple guide columns 103 also guide the movement of the mold shifting frame 2, thereby further improving the stability of the mold shifting frame 2 during the movement. In this embodiment, the number of guide columns 103 is four, which are evenly distributed on both sides of the mold shifting frame 2. By designing the top of the solid mold frame 101 as a square frame 15 with mounting holes formed on the inner side, multiple supporting components for supporting and fixing the cooling frame are reasonably arranged through the mounting holes, so that the structure of the plasticizing reduction molding machine is more compact.

[0040] Among them, multiple support components are arranged in parallel and at intervals in the mounting hole, and each support component includes a mounting plate embedded in the mounting hole. Both ends of the mounting plate are clamped and fixed with one end of the square frame 15 through connecting ears, and multiple support screws 17 are evenly distributed on the mounting plate along its length direction, and one end of each support screw 17 is against the cooling frame; the cooling frame will undergo a certain deformation due to temperature changes during use. By having multiple support screws 17 against the cooling frame, the deformation of the cooling frame is reduced, so that the cooling frame can be used normally for a long time.

[0041] The mounting plates used include two parallel and spaced positioning plates 16, a plurality of support screws 17 pass through the gap between the two positioning plates 16, and both sides of each support screw 17 are connected to the two positioning plates 16 one by one through fixing blocks, and the two fixing blocks connected to the same support screw 17 are clamped on the outside of the two positioning plates 16; the mounting plate is composed of two positioning plates 16, which facilitates the installation of the support screw 17, plays a certain protective role for the support screw 17, and also reduces the weight of the mounting plate; the connection strength between the support screw 17 and the two positioning plates 16 is improved by the layout of the support screw 17 and the two fixing blocks.

[0042] like Figure 3 As shown, according to another embodiment of the present invention, the plasticizing reduction molding machine further includes a plurality of weight-reducing holes opened on a positioning plate 16 along its length direction, and the plurality of weight-reducing holes and the plurality of supporting screws 17 are alternately arranged one by one; by opening and arranging the plurality of weight-reducing holes, the weight of the positioning plate 16 can be reasonably reduced and the positioning plate 16 can have sufficient supporting strength.

[0043] According to another embodiment of the present invention, the plasticizing-reduction molding machine further includes a plurality of temperature sensors (not shown in the accompanying drawings) evenly distributed on the cooling frame, the detection probe of each temperature sensor extends into the fixed mold, and the rod of each temperature sensor is embedded in the mounting hole; the layout of the plurality of temperature sensors is used to detect the temperature at different positions in the mold cavity of the fixed mold 3, so that the temperature detection in the mold cavity of the fixed mold 3 is more accurate, so as to more accurately adjust the temperature in the mold cavity of the fixed mold 3 to improve the processing quality of the product; at the same time, the temperature sensor is reasonably embedded in the mounting hole to make the overall structural layout more compact.

[0044] like Figure 4 As shown, according to another embodiment of the present invention, the plasticizing reduction molding machine, wherein the feeding system may further include a barrel 19, the bottom plate 20 of the barrel 19 is connected to a plurality of discharge joints 21, a guide baffle 23 is rotatably provided in the barrel 19, the guide baffle 23 divides the barrel 19 into an independent feed chamber 24 and an air guide chamber 28, the feed chamber 24 is connected to the feed port of the barrel 19, and a plurality of discharge holes 29 are evenly distributed on the guide baffle 23, which are connected to the plurality of discharge joints 21 in a one-to-one correspondence, the feed ends of the plurality of discharge joints 21 are slidably abutted against the bottom surface of the guide baffle 23, and the plurality of discharge joints 21 are The feed ends are all located in the air guide cavity 28, and the discharge ends of the multiple discharge connectors 21 are all located outside the barrel 19; the outer walls of the feed ends of the multiple discharge connectors 21 are each provided with a plurality of air guide holes 30 connecting the material guide channels therein with the air guide cavity 28, and the bottom plate 20 of the barrel 19 is evenly distributed with a plurality of air inlet holes connected with the air guide cavity 28; the multiple air guide holes 30 are evenly distributed circumferentially on the outer walls of the feed ends of the multiple discharge connectors 21, and the multiple air guide holes 30 are all arranged obliquely, and the distance between the air inlet of each air guide hole 30 and the discharge end of the discharge connector 21 is greater than the distance between the air outlet of the air guide hole 30 and the discharge end of the discharge connector 21.

[0045] Firstly, the discharge of the barrel 19 is achieved by rotating the guide baffle 23 to enable the multiple discharge holes 29 to be quickly and continuously connected with the multiple discharge joints 21, thereby speeding up the number of connections between the multiple discharge joints 21 and the feed chamber 24 in the barrel 19 per unit time, thereby improving the discharge speed of the barrel 19; secondly, the arrangement of the multiple air guide holes 30 on each discharge joint 21 is so that the air introduced from the air inlet hole enters the air guide chamber 28 and then enters the guide channel of the discharge joint 21 from the multiple air guide holes 30. The air in the guide channel of the discharge joint 21 has the purpose of quickly guiding the raw materials flowing in the guide channel from the feed chamber 24 of the barrel 19 to the discharge end of the discharge joint 21, thereby avoiding blockage in the discharge joint 21 and speeding up the discharge speed of the barrel 19.

[0046] like Figure 4 As shown, according to another embodiment of the present invention, the plasticizing-reduction molding machine further includes a material guide cylinder 31 disposed in the material barrel 19 and connected to the material feed port of the material barrel 19, a plurality of air guide holes are opened on the outer wall of the material guide cylinder 31, a pressure extraction pipe 32 connected to the plurality of air guide holes through a pressure guide pipe is disposed on the outer wall of the material barrel 19, and a pressure extraction fan (not shown in the attached drawings) is connected to the pressure extraction pipe 32.

[0047] The raw materials are introduced from the feed port of the barrel 19 into the feed cavity 24 of the barrel 19 through the material guide cylinder 31. The suction and pressure fan is started to form a suction negative pressure in the material guide cylinder 31 through the suction and pressure pipe 32, the pressure pipe and multiple air guide holes, thereby quickly introducing the raw materials into the feed cavity 24 of the barrel 19 through the material guide cylinder 31; and the apertures of the multiple air guide holes are smaller than the particles of the raw materials, so as to prevent the raw materials from passing through the air guide holes and being extracted from the suction and pressure fan through the pressure pipe and the suction and pressure pipe 32.

[0048] In order to speed up the discharge of the barrel 19, a pressurized air pipe 33 connected to a plurality of air guide holes is provided on the outer wall of the barrel 19; when the barrel 19 is discharging, air is introduced from the pressurized air pipe 33 to pressurize the feed chamber 24 of the barrel 19, which can further speed up the discharge of raw materials from the discharge joint 21 and further avoid blockage in the discharge joint 21.

[0049] In order to avoid excessive pressure in the barrel 19, a pressure relief pipe 34 is connected to the pressure extraction pipe 32, and the excess pressure in the barrel 19 is discharged through the pressure relief pipe 34, and solenoid valves are installed on the pressure relief pipe 34 and the pressure guiding pipe; the use status of the pressure relief pipe 34 and the pressure extraction pipe 32 is adjusted by the opening and closing status of the two solenoid valves, so that the feed suction and pressure relief in the barrel 19 can be carried out separately; the solenoid valve on the pressure relief pipe 34 can be an automatic regulating valve. When the pressure in the barrel 19 exceeds the maximum value set by the automatic regulating valve, the automatic regulating valve opens to relieve the pressure in the barrel 19 to ensure that the barrel 19 can operate normally, thereby ensuring that the pressure in the barrel 19 remains stable and the discharge of the barrel 19 is stable; and when the barrel 19 is discharging, the solenoid valve on the pressure guiding pipe can be closed to maintain the pressure in the feed chamber 24 of the barrel 19 to avoid reducing the discharge speed of the barrel 19.

[0050] Combination Figure 5 and Figure 6 According to another embodiment of the present invention, the plasticizing reduction molding machine also includes a bottom plate 20 of the barrel 19 fixedly connected to the bottom of the barrel 19 through a fixing sleeve 35, the inner wall of the fixing sleeve 35 is connected with an annular groove along its circumferential direction, the edge of the material guide partition 23 is rotatably engaged in the annular groove, and the side wall of the annular groove placed in the feed cavity 24 is formed with an annular material guide slope 37, and the distance between the outer side of the annular material guide slope 37 and the material guide partition 23 gradually decreases toward the distance between the inner side of the annular material guide slope 37 and the material guide partition 23.

[0051] The bottom plate 20 is fixedly connected to the bottom of the barrel 19 by a fixing sleeve 35, and an annular groove is used to enable the material guide baffle 23 to rotate stably. The structural design of the annular material guide slope 37 is to quickly guide the raw materials in the feed chamber 24 to multiple discharge holes 29, so as to be discharged from multiple discharge joints 21, so as to avoid the raw materials being stuck in the annular groove to affect the rotation efficiency of the material guide baffle 23 and cause dead material.

[0052] Combination Figure 5 and Figure 6 According to another embodiment of the present invention, the plasticizing reduction molding machine further includes a reinforcing plate 38 fixedly provided on the inner wall of the fixing sleeve 35 and located in the air guide cavity 28, the feed end of each discharge joint 21 is fixedly passed through the reinforcing plate 38, and the air guide holes 30 are located between the reinforcing plate 38 and the bottom plate 20 of the barrel 19; the connection stability of each discharge joint 21 is enhanced by the reinforcing plate 38, and the position design of the air guide hole 30 is to avoid being blocked and affecting the air entering the material guide channel of the discharge joint 21.

[0053] During the rotation of the material guide baffle 23, in order to reduce the friction between the material guide baffle 23 and the reinforcement plate 38, a wear-resistant gasket 39 is further arranged between the reinforcement plate 38 and the material guide baffle 23, and the feed end of each discharge joint 21 is fixedly passed through the wear-resistant gasket 39, and the wear-resistant gasket 39 is fixedly connected to the reinforcement plate 38, and the wear-resistant gasket 39 is rotatably attached to the material guide baffle 23; because the wear resistance of the wear-resistant gasket 39 is greater than that of the reinforcement plate 38, the service life of the material guide baffle 23 is extended, and at the same time, the arrangement of the wear-resistant gasket 39 and the material guide baffle 23 improves the stability of the material guide baffle 23 during the rotation process; wherein, the wear-resistant gasket 39 can be a copper gasket.

[0054] Combination Figure 6 and Figure 7 According to another embodiment of the present invention, the plasticizing reduction molding machine also includes structural optimization of each discharge joint 21, and each discharge joint 21 used includes a material guide cylinder 211 passing through a wear-resistant gasket 39, a reinforcement plate 38 and a bottom plate 20 of a material barrel 19, one end of the material guide cylinder 211 is in sliding contact with a material guide partition 23, and the other end of the material guide cylinder 211 is connected to a hose connector 213 placed outside the material barrel 19 through a quick-release connector 212, and an air guide hole 30 is opened on the material guide cylinder 211.

[0055] The hose connector 213 is used to facilitate connection with the feed pipe of the plasticizing reduction molding machine. The quick-release connector 212 is designed to quickly adjust the connection state between the material guide cylinder 211 and the hose connector 213. When the discharge connector 21 discharges materials, it passes through the material guide cylinder 211, the quick-release connector 212 and the hose connector 213 in sequence. The material guide cylinder 211 is also convenient for opening an air guide hole 30.

[0056] like Figure 7As shown, according to another embodiment of the present invention, the plasticizing reduction molding machine further includes a structural optimization of the quick-release joint 212. The quick-release joint 212 used includes a connecting sleeve 2121 with one end fixedly embedded in the material guide cylinder 211 and a limiting ring 2122 fixedly sleeved on the outside of the connecting sleeve 2121. The limiting ring 2122 can be a nut threadedly connected to the connecting sleeve 2121 to facilitate adjusting the position of the nut; one end of the hose connector 213 is fixedly embedded in the other end of the connecting sleeve 2121, and an arc-shaped adjustment groove is opened in the middle of the outer wall of the connecting sleeve 2121 along its circumferential direction. The arc-shaped adjustment groove A plurality of adjusting balls 2123 are arranged for internal rotation, an adjusting sleeve 2124 is provided for the outer sliding sleeve of the connecting sleeve 2121, annular grooves are provided at both ends of the inner wall of the adjusting sleeve 2124 along its circumferential direction, an annular elastic protrusion 2125 is formed between the two annular grooves and arranged along the circumferential direction of the middle part of the inner wall of the adjusting sleeve 2124, the annular elastic protrusion 2125 is in sliding contact with the plurality of adjusting balls 2123, an adjusting spring 2126 located in one of the annular grooves is provided on the fixed sleeve on the outer wall of the connecting sleeve 2121, and the adjusting spring 2126 is located between the limiting ring 2122 and the annular elastic protrusion 2125.

[0057] The adjusting sleeve 2124 is moved toward the direction close to the limiting ring 2122, and the annular elastic protrusion 2125 abuts against the adjusting spring 2126 to shrink the adjusting spring 2126. The adjusting sleeve 2124 abuts against the limiting ring 2122 to stop the movement of the adjusting sleeve 2124, so that the annular elastic protrusion 2125 and the plurality of adjusting balls 2123 are out of sliding contact, and the plurality of adjusting balls 2123 abut against the inner wall of the annular groove where the adjusting spring 2126 is not provided, thereby reducing the connection tightness between the hose connector 213 and the connecting sleeve 2121, and the hose connector 213 and the connecting sleeve 2121 are connected. When the connecting sleeve 2121 becomes loose, the hose connector 213 can be taken out from the connecting sleeve 2121, and the hose connector 213 and the connecting sleeve 2121 are disconnected; when the hose connector 213 and the connecting sleeve 2121 are connected, after one end of the hose connector 213 is inserted into the connecting sleeve 2121, the adjusting sleeve 2124 is moved away from the limiting ring 2122, the adjusting spring 2126 is extended, and the annular elastic protrusion 2125 and the multiple adjusting balls 2123 are again abutted against each other, so that the hose connector 213 and the connecting sleeve 2121 are tightly fixedly connected.

[0058] In order to limit the movement of the adjusting sleeve 2124 when the hose connector 213 is connected to the connecting sleeve 2121 and to make the adjustment of the quick-release connector 212 more precise, an annular protrusion 2127 is integrally formed on the outer wall of the connecting sleeve 2121 on one side away from the limiting ring 2122, and the annular protrusion 2127 is slidably set in an annular groove where the adjusting spring 2126 is not set; during the movement of the adjusting sleeve 2124, when the annular elastic protrusion 2125 abuts against the annular protrusion 2127, the annular elastic protrusion 2125 abuts against the multiple adjusting balls 2123 again, so that the hose connector 213 and the connecting sleeve 2121 are tightly fixedly connected.

[0059] like Figure 7 As shown, according to another embodiment of the present invention, the plasticizing reduction molding machine also includes a first material sealing plug 40 fixedly embedded in the material guide cylinder 211, and the first material sealing plug 40 is detachably connected to a second material sealing plug 22 fixedly embedded in the connecting sleeve 2121, and the end of the second material sealing plug 22 away from the first material sealing plug 40 passes through the connecting sleeve 2121 to form a handle; when the material barrel 19 is not in use, the hose connector 213 is disassembled from the connecting sleeve 2121, and then the discharge connector 21 is sealed by the cooperation of the first material sealing plug 40 and the second material sealing plug 22, and the handle on the second material sealing plug 22 is for conveniently adjusting the sealing state of the first material sealing plug 40 and the second material sealing plug 22 on the discharge connector 21.

[0060] Among them, the connection between the first material sealing plug 40 and the second material sealing plug 22 is achieved by matching a groove opened at the end of the second material sealing plug 22 with a convex column integrally formed at the end of the first material sealing plug 40, and the groove and the convex column are matched through threads, which facilitates quick adjustment of the connection between the first material sealing plug 40 and the second material sealing plug 22.

[0061] like Figure 7 As shown, according to another embodiment of the present invention, the plasticizing reduction molding machine also includes two sealing sleeves fixedly mounted on the material guide cylinder 211, one sealing sleeve abutting against the bottom plate 20 of the barrel 19, and the other sealing sleeve abutting against the reinforcement plate 38, thereby improving the sealing performance in the air guide cavity 28.

[0062] The material guide baffle 23 is driven to rotate by a motor 36 through a transmission column. The motor 36 is fixedly arranged under the bottom plate 20 of the barrel 19. The transmission column passes through the bottom plate 20, the reinforcement plate 38 and the wear-resistant gasket 39 of the barrel 19 in sequence and is connected to the material guide baffle 23; wherein, the rotation speed of the motor 36 can be adjusted, thereby adjusting the number of times the discharge hole 29 is connected to the discharge connector 21 per unit time, so as to adjust the discharge speed of the barrel 19.

[0063] The air pressure, cylinder pressure, cooling water temperature, temperature and pressure in the transfer mold frame 2 and the fixed mold 3 in the plasticizing reduction molding machine are all detected by corresponding temperature sensors and pressure sensors, so as to make the corresponding temperature and pressure accurate and improve the quality of the product.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A plasticizing reduction molding machine, characterized in that: It comprises a frame, a fixed mold is fixedly arranged on the top of the frame, a moving mold frame is slidably arranged in the frame, and a moving mold for cooperating with the fixed mold is fixedly arranged in the moving mold frame; The frame is also fixedly provided with a feeding system, a hydraulic system, a steam system, an air system, a cooling water system, a mold temperature control system, a vacuum system and a central energy distributor. The feeding system is connected with the mold cavity of the transfer mold through a feeding pipe, and the hydraulic system is connected with the transfer mold frame to control the opening and closing of the fixed mold and the transfer mold and the locking state; The steam system is connected to the mold cavities of the fixed mold and the movable mold, and is used to heat the fixed mold and the movable mold; The mold temperature control system is connected to the heating channels provided in the fixed mold and the movable mold, and is used to preheat the fixed mold and the movable mold; The cooling water system is connected to the mold cavities of the fixed mold and the movable mold, and is used to cool the fixed mold and the movable mold; The vacuum system is connected to the mold cavities of the fixed mold and the movable mold, and is used to cool the fixed mold and the movable mold; The air system is connected to the mold cavities of the fixed mold and the movable mold, and is used to cool the products in the fixed mold and the movable mold and demold the products; and the central energy distributor cooperates with the steam system and the air system to adjust the steam flow rate entering the mold cavities of the fixed mold and the movable mold from the steam system and the air flow rate entering the mold cavities of the fixed mold and the movable mold from the air system, and is also used for overpressure regulation in the mold cavities of the fixed mold and the movable mold; at the same time, the air system also cooperates with the feeding system to pressurize the feeding system; The hydraulic system comprises a hydraulic station and a plurality of locking oil cylinders and a plurality of mold-pushing oil cylinders fixedly arranged on a frame, the plurality of locking oil cylinders and the plurality of mold-pushing oil cylinders are powered by the hydraulic station, the piston rods of the plurality of locking oil cylinders and the plurality of mold-pushing oil cylinders are connected to the end surface of the mold-shifting frame away from the fixed mold, and the extension and retraction directions of the piston rods of the plurality of locking oil cylinders and the plurality of mold-pushing oil cylinders are arranged along the moving direction of the mold-shifting frame; The frame includes a fixed mold frame and a rear frame, which are connected by a plurality of guide columns, and a shifting mold frame is slidably connected to each guide column. The top of the fixed mold frame is a square frame with mounting holes formed on the inner side after being connected in sequence by a plurality of connecting columns. The fixed mold is fixedly arranged on a side of the square frame close to the shifting mold frame, and a cooling frame that seals one end of the mounting hole is fixedly connected to the fixed mold, and a plurality of supporting components are inside the mounting hole to support and fix the cooling frame.

2. A plasticizing reduction molding machine according to claim 1, characterized in that: The mold cavity of the shifting mold is connected to the steam inlet pipe of the shifting mold frame through a gas duct, the steam system includes a steam inlet pipe connected to the first air inlet of the central energy distributor, the two air outlets of the central energy distributor are connected to the steam inlet pipe of the shifting mold frame and the mold cavity of the fixed mold in a one-to-one correspondence, and the air system includes an air inlet pipe connected to the second air inlet of the central energy distributor, and the first air inlet and the second air inlet are both connected to the two air outlets.

3. A plasticizing reduction molding machine according to claim 2, characterized in that: The feeding system comprises a plurality of barrels fixedly arranged on a frame, the discharge port of each barrel is connected with the mold cavity of the transfer mold through a material guide pipe, and the feed port of each barrel is connected with the air inlet pipe through an air guide pipe.

4. A plasticizing reduction molding machine according to claim 2 or 3, characterized in that: The cooling water system includes a water tank fixedly arranged on the top of the frame, a liquid inlet pipe is connected to the side wall of the water tank, the bottom of the water tank is connected to the mold cavity of the fixed mold and the movable mold through the liquid guide pipe, and the top of the water tank is connected to the air inlet pipe through the pressure pipe.

5. The plasticizing reduction molding machine according to claim 1, characterized in that: The multiple support components are arranged in parallel and at intervals in the mounting hole, and each support component includes a mounting plate embedded in the mounting hole. Both ends of the mounting plate are clamped and fixed to one end of the square frame through connecting ears, and a plurality of support screws are evenly distributed on the mounting plate along its length direction, and one end of each support screw is against the cooling frame.

6. The plasticizing reduction molding machine according to claim 5, characterized in that: The mounting plates include two parallel and spaced positioning plates, a plurality of support screws pass through the gap between the two positioning plates, and both sides of each support screw are connected to the two positioning plates one by one through fixing blocks, and the two fixing blocks connected to the same support screw are clamped on the outside of the two positioning plates.

7. The plasticizing reduction molding machine according to claim 6, characterized in that: Each of the positioning plates is provided with a plurality of weight-reducing holes along its length direction, and the plurality of weight-reducing holes and the plurality of supporting screws are arranged alternately one by one.

8. The plasticizing reduction molding machine according to claim 1, characterized in that: A plurality of temperature sensors are evenly distributed on the cooling frame, a detection probe of each temperature sensor extends into the fixed mold, and a rod body of each temperature sensor is embedded in the installation hole.

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