Forming device for automobile plastic part

Abstract

The invention relates to the technical field of automobile plastic part forming, in particular to an automobile plastic part forming device which comprises a movable module, a fixed module, a driving mechanism for driving the movable module to get close to the fixed module and an exhaust mechanism. The driving mechanism comprises an air conveying pipe, a reversing pipe fixedly installed on the air conveying pipe and a fixing pipe communicated with the reversing pipe. According to the mold, when the adjusting plate drives the ejector rod to slide, the ejector rod pushes the first piston plate to slide in the movable mold base, due to the fact that the interior of the movable mold base is vacuum, when the ejector rod slides through the communication position of the hose and the movable mold base, vacuum internal pressure pumps cooling liquid in the cooling box into the movable mold base through the hose, and after a movable mold set and a fixed mold are combined, the cooling liquid is cooled; the cooling liquid in the movable mold base can cool the plastic part in the injection molding process, the forming speed of the plastic part is increased, the cooling liquid does not need to be conveyed through an extra power source, and cost is saved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile plastic part molding, and in particular to a molding device for automobile plastic parts. Background Art

[0002] As one of the core processes of modern automobile manufacturing, automobile plastic molding has significantly improved production efficiency and product quality. It covers a variety of molding technologies, such as injection molding, extrusion molding, blow molding, compression molding, slush molding and foam molding, each of which has its own unique principles and scope of application. Together, these technologies provide solutions for the manufacturing of key components such as automotive interior and exterior trims, functional parts, etc.

[0003] Injection molding has become the mainstream due to its high efficiency and precision, and can produce complex shapes and high-precision plastic parts, such as dashboards and bumpers. Extrusion molding is suitable for large-scale continuous production of profiles with simple cross-sections, such as sealing strips and wiring harness sheaths. Blow molding focuses on the production of hollow products, such as fuel tanks and gas tanks. In addition, compression molding, slush molding and foam molding also have their own advantages, meeting the diverse needs of automobile manufacturing.

[0004] The patent application with application number CN202410590412.9 discloses a car door handle mold, which belongs to the field of car door handle detection, and includes an injection mold and a first workbench, wherein the injection mold is installed on the first workbench, and the injection mold includes a lower mold and an upper mold, wherein the lower mold and the upper mold are respectively provided with matching lower molding grooves and upper molding grooves, and an injection head capable of sliding in the lower mold is provided below the lower mold; the invention can form a molding cavity of a car door handle by setting an injection mold and utilizing the cooperation of the upper and lower molding grooves of the lower mold with the upper molding groove of the upper mold, and the raw material will enter the molding cavity through the injection tube on the injection head and the feed hole opened on the lower molding groove and fill it, and after the raw material is cooled, it becomes a car door handle, and then the micro push rods around the injection head will drive the injection head to move downward, so that the unsolidified raw material at the injection tube can be cut and separated from the formed car door handle.

[0005] However, the patent does not explain how to cool the car door handle during the molding process. If the car door handle is left to cool naturally, the production efficiency of the car door handle will be reduced.

[0006] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the invention

[0007] The object of the present invention is to provide a molding device for automobile plastic parts which can effectively solve the above technical problems.

[0008] In order to achieve the purpose of the present invention, the following technical scheme is adopted:

[0009] A molding device for automobile plastic parts, comprising: a movable die set, a fixed die set, a driving mechanism for driving the movable die set to approach the fixed die set, and an exhaust mechanism;

[0010] The driving mechanism comprises: an air delivery pipe, a reversing pipe fixedly mounted on the air delivery pipe, and a fixed pipe connected to the reversing pipe;

[0011] The movable die assembly comprises: a movable die seat, a piston plate 1 slidably connected to the movable die seat, a hose connected to the movable die seat, a cooling box fixedly connected to the hose, and a driving member fixedly installed on the movable die seat;

[0012] The fixed tube is slidably connected with an adjustment plate, a sealing member is slidably mounted on the adjustment plate, a push rod is fixedly mounted on the adjustment plate, a reset member 1 is fixedly mounted on the fixed tube, a baffle is fixedly mounted on the reset member 1, a buffer member is fixedly connected to the push rod, and a push rod is provided on the buffer member; the push rod is fixedly connected to the piston plate;

[0013] During cooling, the gas delivery pipe inputs gas into the fixed pipe, so that the piston plate moves, the coolant is drawn into the movable mold base, and the movable mold base is pushed to move.

[0014] Furthermore, top blocks are fixedly mounted on the adjustment plate and the baffle, and a pressure relief hole is opened on the sealing member.

[0015] Furthermore, a reversing assembly is provided on the reversing tube;

[0016] The reversing assembly comprises: a sleeve rotatably connected to the reversing tube, a guide block fixedly mounted on the sleeve, a partition slidably connected to the sleeve, a connecting rod fixedly connected to the partition, and a guide groove is provided on the connecting rod.

[0017] Furthermore, a ventilation plate is fixedly mounted on the sleeve, a sealing plate is slidably connected to the ventilation plate, and an elastic member is fixedly mounted on the sealing plate; the elastic member is fixedly connected to the ventilation plate.

[0018] Furthermore, a connecting plate is slidably connected to the inner wall of the buffer, a spring is fixedly installed on the connecting plate, the spring is installed on the buffer, and a push rod is fixedly connected to the connecting plate.

[0019] Furthermore, the fixed die assembly includes: a fixed die base, an ejection assembly for ejecting the plastic part, and a gate;

[0020] The ejection assembly comprises: an ejection member, a limit plate fixedly connected to the ejection member, and a second reset member fixedly installed on the limit plate; the second reset member is fixedly installed on the fixed mold seat.

[0021] Furthermore, the exhaust mechanism includes: a rotating disk, a rotating shaft fixedly connected to the rotating disk, and a second piston plate slidably connected to the fixed mold seat; the second piston plate is threadedly connected to the rotating shaft, and the rotating shaft is rotatably connected to the fixed mold seat.

[0022] Furthermore, the exhaust mechanism further comprises: a gear meshing with the rotating disk, a clamping block fixedly connected to the gear, a ratchet fixedly connected to the clamping block, and a transmission member driving the gear to rotate;

[0023] A limit block is fixedly installed on the transmission member, a clamping slot is provided on the transmission member, and a ratchet pawl and an elastic sheet are rotatably installed on the clamping slot.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention provides a molding device for automobile plastic parts. When an adjustment plate drives a push rod to slide, the push rod pushes a piston plate 1 to slide inside a movable mold seat. Due to the vacuum setting inside the movable mold seat, when the push rod slides through the connection between a hose and the movable mold seat, the vacuum internal pressure draws the coolant inside a cooling box into the movable mold seat through the hose. After the movable mold group is assembled with a fixed mold, the coolant inside the movable mold seat can cool the plastic parts in the injection molding process, thereby accelerating the molding speed of the plastic parts. There is no need to use an additional power source to transport the coolant, thereby saving costs. Moreover, when the mold is separated, the piston plate 1 squeezes the coolant into the cooling box and impacts the coolant inside the cooling box to mix the coolants and avoid uneven coolant temperatures. The two groups of movable molds are extracted in sequence, which can also save the amount of coolant used. In addition, the relative impact of the other two streams of coolant can further enhance the mixing of the coolant and improve the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0027] Figure 1 A schematic diagram of a molding device for automobile plastic parts according to the present invention;

[0028] Figure 2 It is a schematic diagram of a driving mechanism of a molding device for automobile plastic parts of the present invention;

[0029] Figure 3 A schematic diagram of a reversing tube of a molding device for automobile plastic parts according to the present invention;

[0030] Figure 4 A molding device for automobile plastic parts of the present invention Figure 3 The enlarged schematic diagram at A in the middle;

[0031] Figure 5 A schematic diagram of a reversing assembly of a molding device for automobile plastic parts according to the present invention;

[0032] Figure 6 A schematic diagram of a connecting rod of a molding device for automobile plastic parts of the present invention;

[0033] Figure 7 A schematic diagram of a buffer component of a molding device for automobile plastic parts according to the present invention;

[0034] Figure 8 A schematic diagram of a movable die set of a molding device for automobile plastic parts of the present invention;

[0035] Fig. 9 A schematic diagram of a rotating disk of a molding device for automobile plastic parts according to the present invention;

[0036] Fig.10 A schematic diagram of gears of a molding device for automobile plastic parts of the present invention;

[0037] Fig.11 A schematic diagram of a transmission component of a molding device for automobile plastic parts of the present invention;

[0038] Fig.12 A schematic diagram of a fixed die set of a molding device for automobile plastic parts of the present invention;

[0039] Fig.13 The present invention is a schematic diagram of an ejector of a molding device for automobile plastic parts.

[0040] In the figure: 1, body; 2, driving mechanism; 21, air delivery pipe; 22, reversing pipe; 221, reversing assembly; 2211, sleeve; 2212, guide block; 2213, partition; 2214, connecting rod; 2215, guide groove; 2216, ventilation plate; 22161, sealing plate; 22162, elastic member; 23, fixing pipe; 231, top block; 232, adjusting plate; 233, sealing member; 2331, pressure relief hole; 234, top rod; 235, baffle; 236, reset member 1; 237, buffer member; 2371, reed; 2372, connecting Plate; 238, push rod; 239, exhaust pipe; 3, movable mold assembly; 31, piston plate one; 32, hose; 33, cooling box; 34, driving member; 4, fixed mold assembly; 41, fixed mold base; 42, ejector assembly; 421, ejector; 422, limit plate; 423, reset member two; 43, gate; 5, exhaust mechanism; 51, rotating disk; 52, rotating shaft; 53, piston plate two; 54, inclined groove; 55, gear; 551, ratchet; 552, block; 56, transmission member; 561, limit block; 562, slot; 563, pawl; 564, elastic sheet. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the present invention, rather than all embodiments.

[0042] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0043] like Figures 1 to 13 As shown, a molding device for automobile plastic parts of the present invention comprises: a machine body 1, a movable die set 3, a fixed die set 4, a driving mechanism 2 for driving the movable die set 3 to approach the fixed die set 4, and an exhaust mechanism 5.

[0044] The driving mechanism 2 drives the movable die set 3 to approach the fixed die set 4 for injection molding. In order to improve production efficiency, the present application sets two sets of movable die sets 3 and fixed die sets 4 to process plastic parts to improve production efficiency.

[0045] The driving mechanism 2 includes: an air supply pipe 21, a reversing pipe 22 fixedly installed on the air supply pipe 21, and a fixed pipe 23 connected to the reversing pipe 22; both ends of the reversing pipe 22 are connected with the fixed pipe 23, an adjusting plate 232 is slidably connected to the fixed pipe 23, a sealing member 233 is slidably installed on the adjusting plate 232, a push rod 234 is fixedly installed on the adjusting plate 232, a reset member 236 is fixedly installed on the fixed pipe 23, a baffle 235 is fixedly installed on the reset member 236, a buffer member 237 is fixedly connected to the push rod 234, and a push rod 238 is provided on the buffer member 237; the push rod 238 is fixedly connected to the piston plate.

[0046] The gas supply pipe 21 is connected to the gas source, and the gas source transports the gas to the ventilation pipe, and the ventilation pipe sends the gas to one of the fixed tubes 23. As the gas continues to enter the fixed tubes 23, the internal pressure of the fixed tubes 23 increases. At this time, the adjustment plate 232 drives the push rod 234 to slide inside the fixed tubes 23, and pushes the movable mold group 3 to move toward the fixed mold group 4 to close the mold.

[0047] The movable mold assembly 3 includes: a movable mold base, a movable mold installed on the movable mold base, a piston plate 31 slidably connected to the movable mold base, a hose 32 connected to the movable mold base, a cooling box 33 fixedly connected to the hose 32, and a driving member 34 fixedly installed on the movable mold base; the movable mold base and the movable mold are each provided with two groups.

[0048] When the adjustment plate 232 drives the push rod 234 to slide, the push rod 234 pushes the piston plate 31 to slide inside the movable mold base. Due to the vacuum setting inside the movable mold base, when the push rod 234 slides through the connection between the hose 32 and the movable mold base, the internal vacuum pressure draws the coolant inside the cooling box 33 into the movable mold base through the hose 32, so that after the movable mold group 3 and the fixed mold group 4 are molded, the coolant inside the movable mold base can cool the plastic parts in the injection molding process, thereby accelerating the molding speed of the plastic parts.

[0049] A spring is installed on one side of the adjustment plate 232, and the spring is fixedly connected to the fixed tube 23. When the adjustment plate 232 moves, the spring will be pulled to deform. When the pressure in the fixed tube 23 is reduced, the spring resets and can pull the adjustment plate 232 to drive the movable module 3 to reset, which is convenient for subsequent use.

[0050] In addition, when the top rod 234 of the fixed tube 23 is reset, it drives the piston plate 31 to squeeze out the coolant inside the movable mold seat again, so that the coolant returns to the cooling box 33 for cooling. There is no need to use an additional power source to transport the coolant, which saves costs. Moreover, when the mold is separated, the piston plate 31 squeezes the coolant into the cooling box 33 and impacts the coolant inside the cooling box 33 to mix the coolant and avoid uneven coolant temperature. The two groups of movable molds are extracted in sequence, which can also save the use of coolant. In addition, the relative impact of the two streams of coolant can enhance the mixing of the coolant again and improve the use effect.

[0051] During cooling, the gas pipe 21 inputs gas into the fixed pipe 23 to move the piston plate, which on the one hand pushes the movable mold base to move for mold closing, and on the other hand draws coolant into the movable mold base to cool the plastic parts during the injection molding process and speed up the molding speed.

[0052] When mold separation is required, air is supplied to the fixed tube 23 again to move the adjustment plate 232 to contact the baffle 235, and the top block 231 on the baffle 235 pushes the seal 233 to slide on the adjustment plate 232. At this time, the pressure in the fixed tube 23 is discharged into the air outlet pipe 239 through the pressure relief hole 2331 on the seal 233 and sprayed out. At this time, the pressure reduction spring in the fixed tube 23 pulls the adjustment plate 232 to reset, and the mold separation is completed. When the adjustment plate 232 is reset, the top block 231 on the fixed tube 23 pushes the seal 233 to slide again, so that the seal 233 is reset for the next use. When the adjustment plate 232 contacts the baffle 235, it pushes the baffle 235 to squeeze the reset member 236, which can reduce the impact of the adjustment plate 232 on the baffle 235 to avoid the adjustment plate 232 squeezing the baffle 235 and causing damage to the baffle 235.

[0053] The inner wall of the buffer 237 is slidably connected to a connecting plate 2372, a spring 2371 is fixedly installed on the connecting plate 2372, the spring 2371 is installed on the buffer 237, and a push rod 238 is fixedly connected to the connecting plate 2372; a top block 231 is fixedly installed on the adjusting plate 232 and the baffle 235, and a pressure relief hole 2331 is opened on the sealing member 233.

[0054] When the mold is separated, the adjustment plate 232 moves to make the push rod 234 drive the push rod 238 and the movable mold seat to continue to move. Since the movable mold and the fixed mold are already in contact and cannot move, the push rod 238 slides inside the buffer 237 through the connecting plate 2372 and squeezes the spring 2371 to prevent the movable mold from continuing to squeeze the fixed mold and causing damage to the device. The spring 2371 can drive the connecting plate 2372 and the push rod 238 to reset, and the use effect is good.

[0055] In the present application, two sets of movable molds are moved toward the fixed mold for mold closing and injection molding. However, if the plastic parts to be processed are of two specifications, the injection time, holding time, etc. of the two sets of molds after mold closing are different, and the mold separation time is also uncontrollable. Therefore, the present application sets a reversing component 221 to enable the two sets of movable molds to move toward the fixed mold in turn for injection molding.

[0056] The reversing tube 22 is provided with a reversing assembly 221; the reversing assembly 221 comprises: a sleeve 2211 rotatably connected to the reversing tube 22, a guide block 2212 fixedly mounted on the sleeve 2211, a partition 2213 slidably connected to the sleeve 2211, a connecting rod 2214 fixedly connected to the partition 2213, a guide groove 2215 provided on the connecting rod 2214, the guide block 2212 cooperates with the guide groove 2215, the connecting rod 2214 is divided into two ends with the partition 2213 as the boundary, one end of which is provided with the guide groove 2215 and is cylindrical, and the other end passes through the sleeve 2211 and is slidably connected to the sleeve 2211. The sleeve 2211 is square in shape, and is also divided into a rotating end and a limiting end by a partition 2213. The rotating end is provided with a guide block 2212, and the limiting end is slidably connected to the square connecting tube. The rotating end and the limiting end are rotatably connected, and the limiting end is fixedly mounted on the machine. The outlet end of the air outlet pipe 239 is provided with two air outlets, one group of air outlets is connected to the sleeve 2211 near the ventilation plate 2216, and the air outlet pipe 239 of the other group of fixed tubes 23 connects the air outlet to the sleeve 2211 away from the ventilation plate 2216. The sleeve 2211 is hollow and separated by a partition 2213, and the guide groove 2215 is opened in a threaded shape.

[0057] When the gas is discharged through the gas outlet pipe 239, it is discharged into the sleeve 2211 through the gas outlet, so that the pressure in the sleeve 2211 increases, and the partition plate 2213 is pressed to move downward or upward. When the partition plate 2213 moves, it drives the connecting rod 2214 to move, and the sleeve 2211 is driven to rotate through the cooperation of the guide groove 2215 on the connecting rod 2214 and the guide block 2212. The sleeve 2211 is fixedly installed with a ventilation plate 2216, the ventilation plate 2216 is slidably connected with a sealing plate 22161, and the sealing plate 22161 is fixedly installed with an elastic member 2 2162; the elastic member 22162 is fixedly connected to the ventilation plate 2216. When the sleeve 2211 rotates, the ventilation plate 2216 is driven to rotate, so that the ventilation plate 2216 rotates in the reversing tube 22 to switch the flow direction of the gas entering the reversing tube 22. When the sealing plate 22161 rotates, a gap will appear between the sealing plate 22161 and the side wall of the reversing tube 22. Therefore, the sealing plate 22161 is pushed by the elastic member 22162 to always contact the side wall of the reversing tube 22 to avoid air leakage. The elastic member 22162 is a spring in a compressed state.

[0058] A portion of the gas discharged from the gas outlet pipe 239 is used to drive the ventilation plate 2216 to rotate, and the other portion is discharged downward to dissipate heat from the plastic parts after injection molding.

[0059] The fixed mold group 4 includes: a fixed mold base 41, a fixed mold installed on the fixed mold base 41, an ejection component 42 for ejecting plastic parts, and a gate 43; both sets of fixed molds are installed on the fixed mold base 41, and the ejection component 42 includes: an ejection member 421, a limit plate 422 fixedly connected to the ejection member 421, and a second reset member 423 fixedly installed on the limit plate 422; the second reset member 423 is fixedly installed on the fixed mold base 41. The exhaust mechanism 5 further includes: a rotating disk 51, a gear 55 meshing with the rotating disk 51, a block 552 fixedly connected to the gear 55, a ratchet 551 fixedly connected to the block 552, and a transmission member 56 for driving the gear 55 to rotate; a limit block 561 is fixedly installed on the transmission member 56, a slot 562 is provided on the transmission member 56, a ratchet 563 and an elastic sheet 564 are rotatably installed on the slot 562, a guide groove 2215 is provided on the surface of the driving member 34, the block 552 cooperates with the slot 562, one end of the ejector 421 abuts against the inclined groove 54, the inclined groove 54 is arranged in a circle, and the bottom surface of the inclined groove 54 has a certain slope, so that when the ejector 421 moves in the inclined groove 54, the ejector 421 can move along its axial direction under the action of the slope, and the rotating disk 51 is also provided with a channel connected to the gate 43 for feeding.

[0060] When the movable mold seat approaches the fixed mold seat 41, the driving member 34 passes through the transmission member 56 and the gear 55, and drives the transmission member 56 to rotate through the cooperation of the limit block 561 and the guide groove 2215. At this time, the pawl 563 abuts against the ratchet 551, driving the gear 55 to rotate. The gear 55 drives the rotating disk 51 to rotate, so that the inclined groove 54 abuts against the ejector 421 to drive the ejector 421 to eject, and the plastic part in the fixed mold is ejected. That is to say, when one group of movable molds moves toward the fixed mold, the rotating disk 51 rotates to retract the ejector 421 to avoid affecting the injection molding, while the other group of ejector 421 extends to push the plastic part to be unloaded. When the ejector 421 is ejected, it slides in the fixed mold seat 41 through the limit plate 422, and drives the second reset member 423 to deform, which is used for resetting the ejector 421. The second reset member 423 can be selected as a spring.

[0061] The mold is provided with two groups. In order to avoid interference caused by the rotating disk 51 driven by the two groups of molds when moving, when the movable mold seat is reset, it drives the transmission member 56 to rotate in the opposite direction. At this time, the pawl 563 slides on the teeth of the ratchet 551 and is reset under the action of the elastic sheet 564. It cannot form abutment, and thus cannot drive the gear 55 to rotate. When the movable mold is closed, it drives the ejector 421 to eject the plastic parts in the other group of fixed molds. When the mold is separated, it cannot drive the rotating disk 51 to rotate, thereby avoiding interference, realizing the automated production of injection molding ejection, and further improving production efficiency.

[0062] However, since the two sets of fixed molds are fixed on the same set of fixed mold bases 41, and the specifications of the processed plastic parts are different, this leads to different temperatures between the two sets of molds. During the next injection molding, the fixed mold temperature is too low, which will increase the scrap rate of plastic parts and affect production efficiency.

[0063] Therefore, in the present application, the fixed mold base 41 is hollow, and the gas therein is evacuated to form a vacuum chamber, thereby enhancing the temperature isolation effect of the two sets of molds and preventing the influence of temperature on the molding of the plastic parts.

[0064] Finally, the present application also provides an exhaust system, which can discharge the waste gas during the injection molding process to prevent the waste gas from forming bubbles in the plastic parts, resulting in reduced product quality. The gas can be connected to the inside of the vacuum chamber, and the residual heat in the waste gas can be used to alleviate the temperature between the two molds, through the rotating shaft 52 fixedly connected to the rotating disk 51 and the piston plate 2 53 slidably connected to the fixed mold seat 41; the piston plate 2 53 is threadedly connected to the rotating shaft 52, and the rotating shaft 52 is rotatably connected to the fixed mold seat 41, so that when the rotating disk 51 rotates, the piston plate is driven by the rotating shaft 52 to slide inside the vacuum chamber, and the waste gas is pushed to be discharged through the exhaust port opened on the fixed mold seat 41, and the exhaust port is a one-way outlet. That is to say, the present application can also recycle the waste heat in the waste gas, and under the interaction of the waste gas temperature and the temperature of the fixed mold seat 41, the waste heat in the waste gas can also be reduced. At this time, when the waste gas is treated, the influence of the waste heat of the waste gas on the treatment device can be reduced.

[0065] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0066] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A molding device for automobile plastic parts, characterized in that: include: A movable die set, a fixed die set, a driving mechanism for driving the movable die set to approach the fixed die set, and an exhaust mechanism; The driving mechanism comprises: an air delivery pipe, a reversing pipe fixedly mounted on the air delivery pipe, and a fixed pipe connected to the reversing pipe; The movable die assembly comprises: a movable die seat, a piston plate 1 slidably connected to the movable die seat, a hose connected to the movable die seat, a cooling box fixedly connected to the hose, and a driving member fixedly installed on the movable die seat; The fixed tube is slidably connected with an adjusting plate, a sealing member is slidably mounted on the adjusting plate, a push rod is fixedly mounted on the adjusting plate, a reset member 1 is fixedly mounted on the fixed tube, a baffle is fixedly mounted on the reset member 1, a buffer member is fixedly connected to the push rod, a push rod is provided on the buffer member, and the push rod is fixedly connected to the piston plate; During cooling, the gas delivery pipe inputs gas into the fixed pipe to move the piston plate, and draws coolant into the movable mold base to push the movable mold base to move.

2. A molding device for automobile plastic parts as claimed in claim 1, characterized in that: Top blocks are fixedly mounted on the adjustment plate and the baffle, and a pressure relief hole is opened on the sealing member.

3. The molding device for automobile plastic parts according to claim 1, characterized in that: The reversing tube is provided with a reversing component; The reversing assembly comprises: a sleeve rotatably connected to the reversing tube, a guide block fixedly mounted on the sleeve, a partition slidably connected to the sleeve, and a connecting rod fixedly connected to the partition; a guide groove is provided on the connecting rod.

4. A molding device for automobile plastic parts as claimed in claim 3, characterized in that: A ventilation plate is fixedly mounted on the sleeve, a sealing plate is slidably connected to the ventilation plate, an elastic member is fixedly mounted on the sealing plate, and the elastic member is fixedly connected to the ventilation plate.

5. The molding device for automobile plastic parts according to claim 1, characterized in that: The inner wall of the buffer is slidably connected with a connecting plate, a spring is fixedly mounted on the connecting plate, the spring is mounted on the buffer, and a push rod is fixedly connected to the connecting plate.

6. The molding device for automobile plastic parts according to claim 1, characterized in that: The fixed die assembly includes: a fixed die base, an ejection assembly for ejecting the plastic part, and a gate; The ejection assembly comprises: an ejection member, a limit plate fixedly connected to the ejection member, and a second reset member fixedly installed on the limit plate; the second reset member is fixedly installed on the fixed mold seat.

7. The molding device for automobile plastic parts according to claim 1, characterized in that: The exhaust mechanism includes: a rotating disk, a rotating shaft fixedly connected to the rotating disk, and a second piston plate slidably connected to the fixed mold seat; the second piston plate is threadedly connected to the rotating shaft, and the rotating shaft is rotatably connected to the fixed mold seat.

8. The molding device for automobile plastic parts according to claim 7, characterized in that: The exhaust mechanism further comprises: a gear meshing with the rotating disk, a clamping block fixedly connected to the gear, a ratchet fixedly connected to the clamping block, and a transmission member driving the gear to rotate; A limit block is fixedly installed on the transmission member, a clamping slot is provided on the transmission member, and a ratchet pawl and an elastic sheet are rotatably installed on the clamping slot.

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