Injection molding device for automobile injection molding accessories

Abstract

The utility model relates to an injection molding device for automobile injection molding accessories, which belongs to the field of automobile accessory production and comprises a workbench, a material injection device is fixed on the upper surface of the workbench, a feeding pipe is communicated with the outer side of the material injection device, a feeding hopper is communicated with the top end of the feeding pipe, and a mold body is fixed on the upper surface of the workbench. The right side of the mold body communicates with a material injection device, a demolding mechanism used for demolding formed accessories is arranged on the workbench, and a cooling mechanism used for accelerating cooling of raw materials is arranged on the workbench. According to the injection molding device for the automobile injection molding accessories, through cooperation of an electric push rod, a cover plate can be driven to move, so that a molding block is driven to move, the molding block enters a mold and seals the mold, through cooperation of an air injection barrel, air can be injected to a connecting block, and the connecting block is pushed to drive a connecting rod and a first push block to move; therefore, the formed accessory is demoulded from the mould and moved out along with the forming block.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts production, in particular to an injection molding device for automobile injection molding parts. Background Art

[0002] Auto parts are the various units that make up the whole car and a kind of product that serves the car. There are many kinds of auto parts. With the improvement of people's living standards, people's consumption on cars is increasing, and the market for auto parts is becoming larger and larger.

[0003] For example, a Chinese utility model patent publication number (CN214111194U) discloses an injection molding device for automobile injection molding parts, which includes a bracket, a workbench, a feeding mechanism, a hopper, a discharging mechanism, a guide tube, a slide rail and a die pressing mechanism. The top ends of multiple brackets are connected to the bottom end of the workbench, the bottom end of the feeding mechanism is connected to the right half area of ​​the top end of the workbench, the output end of the hopper is connected to the input end of the feeding mechanism, the discharging mechanism is installed in the left half area of ​​the top end of the workbench, and a concave mold is arranged in the central area of ​​the left end of the discharging mechanism. The input end of the discharging mechanism is connected with the output end of the feeding mechanism through a conduit, the slide rail is installed in the left half area of ​​the top of the workbench, the die pressing mechanism can be slid left and right on the slide rail, and a punch is arranged in the central area of ​​the right end of the die pressing mechanism; it also includes a hydraulic rod, a spring, a circular plate, a first fixed plate, a horizontal plate, a second fixed plate and a fan, a through hole is arranged in the left half area of ​​the top of the workbench, and circular grooves are arranged in the upper and lower half areas of the right end of the die pressing mechanism. The central areas of the left walls of the two groups of circular grooves are connected and provided with limiting grooves, and the left end of the hydraulic rod is inserted into the circular groove and the limiting groove in turn. The utility model solves the problem that in the process of demolding the plastic parts on the punch die of an existing injection molding device for automobile injection molding parts, manual participation is required for demolding after each die pressing, which undoubtedly increases the working time of the device and leads to the problem of low working efficiency of the device. However, in the patent, the compressed spring is used to demold the molded parts from the punch die by removing the film pressing mechanism to allow the compressed spring to demold the molded parts from the punch die. Under the elastic force of the spring, the parts will remain inside the die die, and no demolding structure is provided in the punch die, resulting in low demolding efficiency of the parts after molding, which affects practicality. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an injection molding device for automobile injection molding accessories, which has the advantages of preventing the accessories from remaining inside the mold after molding and improving the demolding efficiency. It solves the problem in the patent that the mold pressing mechanism is removed to allow the compressed spring to demold the molded accessories from the punch, but the accessories will remain inside the die under the elastic force of the spring, and no demolding structure is provided in the punch, resulting in low demolding efficiency after the accessories are molded, affecting practicality.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection molding device for automobile injection molding parts, comprising a workbench, an injection device is fixed on the upper surface of the workbench, a feed pipe is connected to the outer side of the injection device, a feed hopper is connected to the top of the feed pipe, a mold body is fixed on the upper surface of the workbench, the right side of the mold body is connected to the injection device, a demoulding mechanism for demoulding the molded parts is arranged on the workbench, and a cooling mechanism for accelerating the cooling of raw materials is arranged on the workbench;

[0006] The demoulding mechanism includes a mounting plate, which is fixed to the upper surface of the workbench, an electric push rod is fixed to the left side of the workbench, the output shaft of the electric push rod passes through and extends to the right side of the mounting plate, and a cover plate is fixed, a molding block is fixed to the right side of the cover plate, a first mounting groove is opened on the right side of the mold body, a first spring is fixed to the left inner wall of the first mounting groove, a connecting block is fixed to the other end of the first spring, a connecting rod is fixed to the left side of the connecting block, a connecting hole is opened on the left inner wall of the first mounting groove, the other end of the connecting rod passes through and extends to the inside of the connecting hole, and a first push block is fixed, a jet cylinder is fixed to the right side of the mold body, and an ejection assembly is provided on the molding block.

[0007] Furthermore, four brackets are fixed to the lower surface of the workbench and are evenly distributed at the four corners of the lower surface of the workbench.

[0008] Furthermore, the number of the first installation grooves is not less than two and is evenly distributed on the right side of the mold body. The number of the air jets is equal to the number of the first installation grooves and the positions correspond one to one.

[0009] Furthermore, the ejection assembly includes a second spring, a second mounting groove is opened on the right side of the forming block, one end of the second spring is fixed to the left inner wall of the second mounting groove, the other end of the second spring is fixed to the second push block, a positioning hole is opened on the left inner wall of the second mounting groove, and a ejector rod is fixed to the right side of the mounting plate.

[0010] Furthermore, the number of the second mounting grooves is not less than two and is evenly distributed on the right side of the forming block. The number of the ejector rods is equal to the number of the positioning holes and the positions correspond one to one.

[0011] Furthermore, the cooling mechanism includes a water tank, which is fixed to the lower surface of the workbench, and a water pump is fixed to the lower surface of the workbench, the water inlet end of the water pump is connected to a water inlet pipe, and the other end of the water inlet pipe penetrates and extends to the interior of the water tank, the water outlet end of the water pump is connected to a water outlet pipe, and the other end of the water outlet pipe penetrates and extends to the interior of the mold body and is connected to a cooling pipe, and the other end of the cooling pipe is connected to a return pipe, and the other end of the return pipe penetrates and extends to the interior of the water tank.

[0012] Furthermore, a cooling fin is fixed to the right side of the water tank, and the left side of the cooling fin penetrates and extends into the interior of the water tank.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] 1. The automobile injection molding device can drive the cover plate to move through the cooperation of the electric push rod, thereby driving the molding block to move, so that the molding block enters the mold and closes the mold. Through the cooperation of the air jet, the connecting block can be sprayed, so that the connecting block is pushed to drive the connecting rod to move, and the movement of the connecting rod drives the first push block to move, so that the molded accessories are demolded from the mold and moved out with the molding block. Through the cooperation of the ejector rod and the second push block, when the molding block moves back to the initial position, the accessories are ejected by the second push block to complete the demolding of the accessories.

[0015] 2. The automobile injection molding device for injection molding parts can pump out the cooling water in the water tank through the water inlet pipe and increase the pressure through the cooperation of the water pump, so that the cooling water is passed into the cooling pipe through the water outlet pipe. Through the cooperation of the cooling pipe, the inside of the mold can be quickly cooled, thereby accelerating the molding speed of the parts and improving the production efficiency. Through the cooperation of the return pipe and the cooling plate, the cooling water that has absorbed the heat can be passed back to the water tank, and the heat is discharged by the cooling plate for cyclic use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the demoulding mechanism of the utility model;

[0018] Figure 3 It is a schematic diagram of the cooling mechanism of the utility model.

[0019] In the figure: 1 workbench, 2 injection device, 3 feed pipe, 4 feed hopper, 5 mold body, 6 demoulding mechanism, 601 mounting plate, 602 electric push rod, 603 cover plate, 604 molding block, 605 first mounting groove, 606 first spring, 607 connecting block, 608 connecting rod, 609 connecting hole, 610 first push block, 611 jet nozzle, 612 second spring, 613 second mounting groove, 614 second push block, 615 positioning hole, 616 ejector rod, 7 cooling mechanism, 701 water tank, 702 water pump, 703 water inlet pipe, 704 water outlet pipe, 705 cooling pipe, 706 reflux pipe, 707 refrigeration plate, 8 bracket. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 In the present embodiment, an injection molding device for automobile injection molding parts includes a workbench 1, an injection device 2 is fixed on the upper surface of the workbench 1, a feed pipe 3 is connected to the outer side of the injection device 2, and a feed hopper 4 is connected to the top of the feed pipe 3. The raw material for injection molding is poured from the feed hopper 4, and the raw material enters the injection device 2 through the feed pipe 3, and the raw material is melted in the injection device 2. A mold body 5 is fixed on the upper surface of the workbench 1, and the right side of the mold body 5 is connected to the injection device 2. The melted raw material is injected into the mold body 5 through the injection device 2. A demolding mechanism 6 for demolding the molded parts is provided on the workbench 1, so that the molded parts can be quickly separated from the mold to avoid the parts remaining on one side of the mold and affecting the subsequent injection molding work. A cooling mechanism 7 for accelerating the cooling of the raw materials is provided on the workbench 1 to accelerate the cooling speed of the parts and improve the production efficiency of the parts.

[0022] Among them, four brackets 8 are fixed to the lower surface of the workbench 1 and are evenly distributed at the four corners of the lower surface of the workbench 1, so that the workbench 1 maintains stability during the injection molding process of the accessories.

[0023] See also Figure 2In order to enable the molded accessories to be quickly separated from the mold and avoid the accessories remaining on one side of the mold to affect the subsequent injection molding work, the demolding mechanism 6 in this embodiment includes a mounting plate 601, which is fixed to the upper surface of the workbench 1. An electric push rod 602 is fixed to the left side of the workbench 1. The output shaft of the electric push rod 602 penetrates and extends to the right side of the mounting plate 601, and a cover plate 603 is fixed. The output shaft of the electric push rod 602 drives the cover plate 603 to move. A molding block 604 is fixed to the right side of the cover plate 603. The cover plate 603 drives the molding block 604 to move so that the molding block 604 enters the mold body 5. The cover plate 603 closes the mold body 5 to facilitate the injection molding of the accessories. A first mounting groove 605 is opened on the right side of the mold body 5. A first spring 606 is fixed to the left inner wall of the first mounting groove 605. A connecting block 607 is fixed to the other end, a connecting rod 608 is fixed to the left side of the connecting block 607, a connecting hole 609 is opened on the left inner wall of the first mounting groove 605, the other end of the connecting rod 608 penetrates and extends to the inside of the connecting hole 609, and a first push block 610 is fixed thereto, and a jet nozzle 611 is fixed to the right side of the mold body 5. After the accessory is formed, the electric push rod 602 is controlled to move the molding block 604 back to its original position, and the jet nozzle 611 is opened while the molding block 604 is moved. The jet nozzle 611 sprays compressed gas on the connecting block 607, and the connecting block 607 moves after receiving the impact force of the gas. The movement of the connecting block 607 drives the connecting rod 608 to move, and the connecting rod 608 drives the first push block 610 to move. The first push block 610 demoulds the accessory from the inner wall of the mold body 5, so that the accessory falls on the molding block 604, and an ejection assembly is provided on the molding block 604.

[0024] In this example, the number of first mounting grooves 605 is no less than two and is evenly distributed on the right side of the mold body 5. The number of air jets 611 is equal to the number of first mounting grooves 605 and their positions correspond one to one, so that the force at each position of the accessory is evenly applied during demolding to prevent deformation of the accessory.

[0025] It should be noted that the ejection assembly includes a second spring 612, a second mounting groove 613 is provided on the right side of the forming block 604, one end of the second spring 612 is fixed to the left inner wall of the second mounting groove 613, the other end of the second spring 612 is fixed to the second push block 614, a positioning hole 615 is provided on the left inner wall of the second mounting groove 613, a ejector rod 616 is fixed to the right side of the mounting plate 601, and a discharge port is provided on the upper surface of the workbench 1. When the forming block 604 moves back to the initial position, the ejection assembly 612 is provided with a second spring 612, and the second push block 614 is fixed to the other end of the second spring 612. When the molding block 604 is in the molded position, the push rod 616 will be inserted into the positioning hole 615, and the push rod 616 will push the second push block 614, and the second push block 614 will push the accessory out of the molding block 604, so that the accessory falls into the discharge port, and the demoulding work of the accessory is completed. The number of the second mounting grooves 613 is not less than two, and they are evenly distributed on the right side of the molding block 604. The number of the push rods 616 is equal to the number of the positioning holes 615, and the positions correspond one to one, so that the accessory is evenly stressed when demoulding from the molding block 604.

[0026] See also Figure 3 In order to speed up the cooling speed of the accessories and improve the production efficiency of the accessories, the cooling mechanism 7 in this embodiment includes a water tank 701, which is fixed to the lower surface of the workbench 1. A water pump 702 is fixed to the lower surface of the workbench 1. The water inlet end of the water pump 702 is connected to a water inlet pipe 703. The other end of the water inlet pipe 703 penetrates and extends into the interior of the water tank 701. The water pump 702 pumps the cooling water out of the water tank 701 through the water inlet pipe 703. The water outlet end of the water pump 702 is connected to a water outlet pipe 704. The water outlet pipe 704 is connected to the water outlet end of the water pump 702. The other end of 04 passes through and extends to the interior of the mold body 5, and is connected to a cooling pipe 705. Cooling water is introduced into the cooling pipe 705 through the outlet pipe 704. The cooling pipe 705 surrounds the mold body 5. The internal cooling water quickly absorbs heat from the mold body 5, thereby allowing the accessory to be quickly cooled and formed. The other end of the cooling pipe 705 is connected to a return pipe 706. The cooling water that has completed absorbing heat returns to the water tank 701 through the return pipe 706. The other end of the return pipe 706 passes through and extends to the interior of the water tank 701.

[0027] In this example, a cooling fin 707 is fixed to the right side of the water tank 701, and the left side of the cooling fin 707 penetrates and extends into the interior of the water tank 701. The left side of the cooling fin 707 absorbs heat from the cooling water inside the water tank 701, so that the heat absorbed in the refluxed cooling water is discharged from the water tank 701 from the right side of the cooling fin 707, thereby allowing the cooling water to be recycled.

[0028] The working principle of the above embodiment is:

[0029] (1) First, the raw materials for injection molding are poured from the feed hopper 4. The raw materials enter the injection device 2 through the feed pipe 3. While the injection device 2 is melting the raw materials, the electric push rod 602 is turned on. The output shaft of the electric push rod 602 drives the cover plate 603 to move. The cover plate 603 drives the forming block 604 to move so that the forming block 604 enters the mold body 5. The cover plate 603 seals the mold body 5. At this time, the injection device 2 passes the melted raw materials into the mold body 5 so that the raw materials fill the mold body 5. At this time, the water pump 702 is turned on. The water pump 702 draws out the cooling water in the water tank 701 through the water inlet pipe 703, and then passes the cooling water into the cooling pipe 705 through the water outlet pipe 704. The cooling pipe 705 surrounds the mold body 5. The internal cooling water quickly absorbs heat from the mold body 5, so that the accessory is quickly cooled and formed.

[0030] (2) After the accessory is formed, the electric push rod 602 is controlled to move the forming block 604 back to its original position. While the forming block 604 is being moved, the air jet 611 is opened. The air jet 611 sprays compressed gas onto the connecting block 607. The connecting block 607 moves after receiving the impact of the gas. The movement of the connecting block 607 drives the connecting rod 608 to move. The connecting rod 608 drives the first push block 610 to move. The first push block 610 demoulds the accessory from the inner wall of the mold body 5, so that the accessory falls on the forming block 604. The forming block 604 is continuously moved. When the forming block 604 moves back to its initial position, the push rod 616 is inserted into the positioning hole 615. The push rod 616 pushes the second push block 614. The second push block 614 pushes the accessory out of the forming block 604, so that the accessory falls into the discharge port, and the demoulding of the accessory is completed.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. An injection molding device for automobile injection molding parts, comprising a workbench (1), characterized in that: A material injection device (2) is fixed on the upper surface of the workbench (1), a feed pipe (3) is connected to the outside of the material injection device (2), a feed hopper (4) is connected to the top of the feed pipe (3), a mold body (5) is fixed on the upper surface of the workbench (1), the right side of the mold body (5) is connected to the material injection device (2), a demoulding mechanism (6) for demoulding the molded accessory is arranged on the workbench (1), and a cooling mechanism (7) for accelerating the cooling of the raw material is arranged on the workbench (1); The demoulding mechanism (6) comprises a mounting plate (601), wherein the mounting plate (601) is fixed to the upper surface of the workbench (1), an electric push rod (602) is fixed to the left side of the workbench (1), an output shaft of the electric push rod (602) passes through and extends to the right side of the mounting plate (601), and a cover plate (603) is fixed thereto, a molding block (604) is fixed to the right side of the cover plate (603), a first mounting groove (605) is opened on the right side of the mold body (5), and the left inner wall of the first mounting groove (605) is fixed thereto. A first spring (606) is provided, a connecting block (607) is fixed to the other end of the first spring (606), a connecting rod (608) is fixed to the left side of the connecting block (607), a connecting hole (609) is provided on the left inner wall of the first mounting groove (605), the other end of the connecting rod (608) passes through and extends to the inside of the connecting hole (609), and a first push block (610) is fixed thereto, a jet cylinder (611) is fixed to the right side of the mold body (5), and an ejection assembly is provided on the molding block (604).

2. The injection molding device for automobile injection molding parts according to claim 1, characterized in that: Four brackets (8) are fixed to the lower surface of the workbench (1) and are evenly distributed at the four corners of the lower surface of the workbench (1).

3. The injection molding device for automobile injection molding parts according to claim 1, characterized in that: The number of the first installation grooves (605) is not less than two and is evenly distributed on the right side of the mold body (5). The number of the air jets (611) is equal to the number of the first installation grooves (605) and their positions correspond one to one.

4. The injection molding device for automobile injection molding parts according to claim 1, characterized in that: The ejection assembly comprises a second spring (612), a second mounting groove (613) is provided on the right side of the forming block (604), one end of the second spring (612) is fixed to the left inner wall of the second mounting groove (613), the other end of the second spring (612) is fixed to a second push block (614), a positioning hole (615) is provided on the left inner wall of the second mounting groove (613), and a ejector rod (616) is fixed to the right side of the mounting plate (601).

5. The injection molding device for automobile injection molding parts according to claim 4, characterized in that: The number of the second mounting grooves (613) is not less than two and is evenly distributed on the right side of the forming block (604). The number of the push rods (616) is equal to the number of the positioning holes (615), and the positions correspond one to one.

6. The injection molding device for automobile injection molding parts according to claim 1, characterized in that: The cooling mechanism (7) comprises a water tank (701), wherein the water tank (701) is fixed to the lower surface of the workbench (1), and a water pump (702) is fixed to the lower surface of the workbench (1); the water inlet end of the water pump (702) is connected to a water inlet pipe (703), and the other end of the water inlet pipe (703) penetrates and extends to the interior of the water tank (701); the water outlet end of the water pump (702) is connected to a water outlet pipe (704), and the other end of the water outlet pipe (704) penetrates and extends to the interior of the mold body (5), and is connected to a cooling pipe (705); the other end of the cooling pipe (705) is connected to a return pipe (706), and the other end of the return pipe (706) penetrates and extends to the interior of the water tank (701).

7. The injection molding device for automobile injection molding parts according to claim 6, characterized in that: A cooling fin (707) is fixed on the right side of the water tank (701), and the left side of the cooling fin (707) penetrates and extends into the interior of the water tank (701).

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