Injection molding device for automotive trim processing

Abstract

The invention relates to the technical field of automobile part processing equipment, in particular to an injection molding device for automobile trim processing, which comprises an injection molding machine body, a mounting frame is arranged on the injection molding machine body, a movable mold is slidably connected in the mounting frame, a fixed mold is fixedly connected to the right wall in the mounting frame, and an injection mechanism is arranged on the injection molding machine body. The side, close to the fixed mold, of the injection mechanism communicates with an injection molding pipe, the injection molding pipe communicates with the fixed mold, blades are arranged on the upper side and the lower side of the fixed mold and provided with a sliding frame, and the sliding frame is slidably connected with the blades and the mounting frame. When the movable mold moves leftwards to pull out a finished product, a blade is driven by a rotating plate and a contact piece to move leftwards synchronously, and when the finished product and a drainage opening material move leftwards to pull out, a gear, a rack and a threaded rod are matched, so that the blade automatically moves towards the sides close to each other to cut off the drainage opening material. And the pushing frame can be automatically driven to move to push out the finished products from the movable mold, so that the finished products are collected.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automobile accessory processing equipment, in particular to an injection molding device for automobile interior processing. BACKGROUND

[0002] In the automobile accessory manufacturing process, an injection molding machine is usually used to manufacture automobile interior parts. The injection molding machine is composed of an injection molding die and an injection mechanism. When starting injection molding, the injection molding die is closed, and then the injection mechanism is used to inject molten material into the cavity. The molten material is injected into the cavity through the injection pipe. After the injection is completed, the injection pipe position has residual material solidification, which is a water gate material. When the die is opened, the water gate material is removed together with the finished product. The water gate material is not part of the required product structure, so it needs to be cut off additionally, which increases the workload. Therefore, the injection molding device for automobile interior processing is developed, which can automatically cut off the water gate material. SUMMARY

[0003] The technical implementation scheme of the application is as follows: an injection molding device for automobile interior processing comprises an injection molding machine body, an installation frame is arranged on the injection molding machine body, a movable die is slidably connected in the installation frame, a fixed die is fixedly connected to the right wall in the installation frame, an injection mechanism is arranged on the injection molding machine body, the injection mechanism is communicated with an injection pipe near the side of the fixed die, the injection pipe is communicated with the fixed die, blades are arranged on the upper and lower sides of the fixed die, the blades are provided with sliding frames, the sliding frames are slidably connected with the blades, and the sliding frames are slidably connected with the installation frame.

[0004] As a preferred technical scheme of the application, a rotating plate is further arranged on the upper and lower sides of the movable die, the rotating plate is rotatably connected with the movable die, a torsion spring is arranged between the rotating plate and the movable die, a resisting piece is fixedly connected to the side of the movable die close to the rotating plate, the resisting piece is in extrusion fit with the rotating plate, a contact piece is arranged on the side of the sliding frame close to the blade, and the contact piece is in extrusion fit with the rotating plate.

[0005] As a preferred technical scheme of the application, a threaded rod is further arranged on the blade, the threaded rod is in threaded fit with the blade, the threaded rod is rotatably connected with the sliding frame, a gear is fixedly connected to the side of the threaded rod close to the contact piece, a rack is fixedly connected to the side of the installation frame close to the gear, and the rack is in meshing fit with the gear.

[0006] As a preferred technical scheme of the application, the contact piece is slidably connected with the sliding frame, the contact piece is slidably connected with the installation frame, a first inclined rail is arranged on the side of the installation frame close to the rack, the first inclined rail is in extrusion fit with the contact piece, and a first spring is connected between the sliding frame and the installation frame.

[0007] As a preferred technical scheme of the application, a condensing mechanism is further arranged on the fixed die, and the condensing mechanism is fixedly connected with the injection molding machine body.

[0008] As a preferred technical scheme of the present application, it further comprises a pushing frame, which is arranged on the side of the movable mold away from the fixed mold, and is slidingly connected with the movable mold; a protrusion is arranged on the side of the mounting frame close to the pushing frame, and is in extrusion fit with the pushing frame; and a second spring is connected between the pushing frame and the movable mold.

[0009] As a preferred technical scheme of the present application, it further comprises a moving block, which is symmetrically arranged and slidingly connected with the movable mold; a resisting frame is slidingly connected with the moving block; the mounting frame is provided with a second inclined rail on the side close to the resisting frame; the second inclined rail is in fit with the resisting frame; a cutter is arranged on the resisting frame and is slidingly connected with the resisting frame.

[0010] As a preferred technical scheme of the present application, it further comprises a third spring, which is connected between the moving block and the movable mold; a fourth spring is connected between the cutter and the resisting frame; and an extrusion block is arranged on the movable mold on the side close to the moving block and is in extrusion fit with the cutter.

[0011] As a preferred technical scheme of the present application, it further comprises a piston, which is slidingly connected in the injection pipe; a perforated plate is slidingly connected on the injection pipe and is used to block the communication port between the injection mechanism and the injection pipe; the right part of the perforated plate is fixedly connected with the piston; and a fifth spring is connected between the perforated plate and the injection pipe.

[0012] As a preferred technical scheme of the present application, it further comprises a heating ring, which is arranged on the side of the injection mechanism close to the injection pipe.

[0013] Compared with the prior art, the present application has the following advantages: 1. When the product is pulled out by moving the movable mold to the left, the cutter is synchronously moved to the left by the driving of the rotating plate and the contact piece; when the product and the nozzle material are pulled out to the left, the cutter is automatically moved to the side close to the nozzle material by the cooperation of the gear, the rack and the threaded rod.

[0014] 2. The cooperation between the pushing frame and the protrusion can automatically drive the pushing frame to move and push the product out of the movable mold, so as to collect the product.

[0015] 3. The cooperation of the moving block, the resisting frame, the cutter and the second inclined rail can automatically cut the protruding part of the product. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application.

[0017] Figure 2 It is a partial three-dimensional structure sectional view of the present application.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the present application.Figure 2 A schematic diagram of the three-dimensional structure of part A in the diagram.

[0019] Figure 4 This is a three-dimensional structural diagram of the piston, fifth spring, and perforated plate of the present invention.

[0020] The markings in the diagram are as follows: 1. Injection molding machine body; 101. Mounting frame; 2. Moving mold; 3. Fixed mold; 4. Injection mechanism; 5. Finished product; 6. Injection tube; 7. Blade; 8. Sliding frame; 9. Rotating plate; 10. Abutment; 11. Contact element; 12. Threaded rod; 13. Gear; 14. Rack; 15. First inclined rail; 16. First spring; 17. Cooling mechanism; 18. Ejector frame; 19. Protrusion; 20. Second spring; 21. Moving block; 22. Abutment frame; 23. Cutter; 24. Second inclined rail; 25. Third spring; 26. Fourth spring; 27. Extrusion block; 28. Piston; 29. ​​Fifth spring; 30. Perforated plate; 31. Heating coil. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings.

[0022] An injection molding device for automotive interior processing, such as Figure 1 As shown, the injection molding machine includes an injection molding machine body 1, on which a mounting frame 101 is provided. A moving mold 2 is slidably connected within the mounting frame 101. The moving mold 2 is moved by electrical control. A fixed mold 3 is fixedly connected to the right wall of the mounting frame 101. The moving mold 2 is moved towards the fixed mold 3 by electrical control. After the moving mold 2 and the fixed mold 3 are closed, the cavity formed between the fixed mold 3 and the moving mold 2 is the mold cavity. Molten material is injected into the mold cavity to form the finished product 5. An injection mechanism 4 is provided on the injection molding machine body 1. The side of the injection mechanism 4 near the fixed mold 3 is connected to an injection tube 6. The injection tube 6 is connected to the fixed mold 3. Molten material can be injected into the mold cavity through the injection tube 6 by the injection mechanism 4.

[0023] As described in the background art, molten material is injected into the mold cavity through the injection tube 6. After injection molding, residual material solidifies at the injection port, which is called sprue. When the mold is opened, the sprue is removed along with the finished product 5. However, the sprue is not part of the desired structure of the finished product 5, so it needs to be cut off separately. Therefore, this embodiment adopts the following solution to facilitate the automatic removal of the sprue after the finished product 5 is pulled out:

[0024] like Figure 2 As shown, blades 7 are provided on the upper and lower sides of the fixed mold 3. The blades 7 are provided with sliding frames 8. The sliding frames 8 and the blades 7 are slidably connected. The sliding frames 8 and the mounting frame 101 are slidably connected. After the finished product 5 is formed, the blades 7 can be driven to move towards each other to cut off the sprue material.

[0025] But considering the cavity is totally sealed, the blade 7 can not be inserted into the fixed mold 3 directly, so the finished product 5 and the sprue material need to be moved out of the fixed mold 3 before the sprue material can be cut off, therefore, the following solution is adopted:

[0026] As shown in Figure 2 and Figure 3 , the movable mold 2 is provided with a rotating plate 9 on both sides, the rotating plate 9 is rotationally connected with the movable mold 2, a torsion spring (not shown inside) is arranged between the rotating plate 9 and the movable mold 2, the movable mold 2 is fixedly connected with a stop piece 10 on the side close to the rotating plate 9, the stop piece 10 is extrudedly matched with the rotating plate 9, the sliding frame 8 is provided with a contact piece 11 on the side close to the blade 7, the contact piece 11 is extrudedly matched with the rotating plate 9.

[0027] When the movable mold 2 moves right to drive the rotating plate 9 to move right, the rotating plate 9 swings left when the lower part of the rotating plate 9 contacts the contact piece 11, the torsion spring is twisted, and when the rotating plate 9 moves to the right of the contact piece 11, the torsion spring drives the rotating plate 9 to reverse and reset, therefore, the rotating plate 9 passes the contact piece 11, and when the movable mold 2 moves left to separate from the fixed mold 3 after the finished product 5 is shaped, the movable mold 2 drives the finished product 5 and the sprue material to move left, at the same time, the rotating plate 9 moves left, the rotating plate 9 contacts the contact piece 11 again and pushes the contact piece 11 to move left, because the stop piece 10 stops the right part of the rotating plate 9, the rotating plate 9 can not swing right, in this way, the rotating plate 9 pushes the contact piece 11 to move left, the contact piece 11 drives the sliding frame 8 to move left, and the sliding frame 8 drives the blade 7 to move left, at this time, the blade 7 moves left synchronously with the movable mold 2, when the blade 7 moves left to separate from the fixed mold 3, the blade 7 is driven by the transmission assembly to move to the position of the sprue material, and the blade 7 automatically cuts off the sprue material.

[0028] It needs to be specially pointed out that the reason why the movable mold 2 can move left to take out the finished product 5 is that a convex part is arranged on the movable mold 2, the convex part is a core, when the molten material cools and shrinks, it will tightly wrap on the core to generate a huge wrapping force (shrinkage force), just like a hand tightly holds the core, compared with this, the wrapping force of the finished product 5 on the fixed mold 3 is only a superficial adsorption force, which is far less than the wrapping force on the core, so the finished product 5 will be automatically taken out when the movable mold 2 moves.

[0029] As shown in Figure 3 , the transmission assembly includes a threaded rod 12, the threaded rod 12 is arranged on the blade 7, the threaded rod 12 is threadedly connected with the blade 7, the threaded rod 12 is rotationally connected with the sliding frame 8, the threaded rod 12 is fixedly connected with a gear 13 on the side close to the contact piece 11, a mounting frame 101 is fixedly connected with a rack 14 on the side close to the gear 13, and the rack 14 is meshed with the gear 13.

[0030] After the sprue is pulled out, gear 13 and rack 14 mesh, causing gear 13 to rotate. The rotation of gear 13 drives threaded rod 12 to rotate, and the rotation of threaded rod 12 drives blade 7 to move and cut the sprue.

[0031] After the sprue is cut off, the moving mold 2 will continue to move to the left, while the blade 7 needs to reset and cannot continue to move with the moving mold 2. Therefore, this embodiment is provided with a function to disengage the rotating plate 9 and the contact member 11, as follows:

[0032] like Figure 3 As shown, the contact 11 and the sliding frame 8 are slidably connected, and the contact 11 and the mounting frame 101 are slidably connected. The mounting frame 101 has a first inclined rail 15 on the side near the rack 14. The first inclined rail 15 and the contact 11 are pressed together. The sliding frame 8 and the mounting frame 101 are connected by a first spring 16. When the sliding frame 8 moves to the left, the first spring 16 is compressed.

[0033] When the contact 11 moves to the left, it moves along a straight line. When the contact 11 contacts the first inclined rail 15, it moves along the first inclined rail 15 to the side away from each other. In this way, the contact 11 will disengage from the rotating plate 9. The moving mold 2 continues to drive the rotating plate 9 to move to the left. At this time, the first spring 16 drives the sliding frame 8 to move to the right to reset. The sliding frame 8 will then drive the blade 7 and the contact 11 to move to the right to reset. The rack 14 will drive the gear 13 to reverse, so that the blade 7 moves back to the side away from each other to reset.

[0034] After the molten material is injected into the mold cavity, the finished product 5 needs to be cooled and molded. Therefore, a cooling mechanism 17 is set on the fixed mold 3. The cooling mechanism 17 is fixedly connected to the injection molding machine body 1. The molten material can be cooled through the cooling mechanism 17, thereby accelerating the molding of the finished product 5.

[0035] After the moving mold 2 pulls the finished product 5 out to the left, it needs to be pushed down. Therefore, as Figure 2 As shown, an ejector 18 is provided on the side of the moving mold 2 away from the fixed mold 3. The ejector 18 and the moving mold 2 are slidably connected. The ejector 18 can push out the finished product 5 by moving to the right on the moving mold 2, making it convenient for people to collect the finished product 5. A protrusion 19 is provided on the side of the mounting frame 101 near the ejector 18. The protrusion 19 and the ejector 18 are pressed together. When the moving mold 2 moves to the left and drives the ejector 18 to move to the left, the ejector 18 stops moving after contacting the protrusion 19, while the moving mold 2 continues to move to the left. In this way, the ejector 18 pushes the finished product 5 down.

[0036] When the moving mold 2 moves to the right, if it is necessary to move and reset the ejector 18, a second spring 20 is connected between the ejector 18 and the moving mold 2. The second spring 20 is used to drive the ejector 18 to move and reset.

[0037] The pushing-out frame 18 moves the position of pushing out the finished product 5, and a dent can be formed at the position, so the position of the finished product 5 contacting the pushing-out frame 18 also needs to be cut off. Therefore, the following scheme is adopted.

[0038] As shown in Figure 1 and Figure 2 , the movable die 2 is slidably connected with the symmetrically arranged moving blocks 21, the moving blocks 21 are slidably connected with the abutting frames 22, the abutting frames 22 are slidably connected with the mounting frames 101, the mounting frames 101 are provided with the second inclined rails 24 near the side close to the abutting frames 22, the second inclined rails 24 are matched with the abutting frames 22, the abutting frames 22 are provided with the cutters 23, and the cutters 23 are slidably connected with the abutting frames 22.

[0039] When the movable die 2 moves left to drive the moving blocks 21 and the abutting frames 22 to move left, the abutting frames 22 will move to the side close to each other when the abutting frames 22 move to the second inclined rails 24, and the abutting frames 22 will move to the right of the protruding parts of the finished product 5 at the front and back sides, while the pushing-out frame 18 is abutted by the protruding blocks 19, the pushing-out frame 18 will push out the finished product 5 and cooperate with the abutting frames 22 to clamp the finished product 5, and then the cutters 23 are driven to move left along the abutting frames 22 to cut off the protruding parts of the finished product 5.

[0040] The scheme of driving the cutters 23 is as follows: the third springs 25 are connected between the moving blocks 21 and the movable die 2, the fourth springs 26 are connected between the cutters 23 and the abutting frames 22, the extruding blocks 27 are arranged on the movable die 2 close to the side of the moving blocks 21, and the extruding blocks 27 are extruded and matched with the cutters 23.

[0041] After the abutting frames 22 move to the side close to each other, the abutting frames 22 continue to move left with the movable die 2, the movable die 2 drives the moving blocks 21 to move left through the third springs 25, the moving blocks 21 and the abutting frames 22 move left, the abutting frames 22 stop moving left when the abutting frames 22 move to the leftmost side of the second inclined rails 24, and the moving blocks 21 stop moving at the same time, the movable die 2 continues to move left, which will stretch the third springs 25, the extruding blocks 27 move left with the movable die 2, the extruding blocks 27 contact the cutters 23 after the extruding blocks 27 move left, the extruding blocks 27 extrude the cutters 23, the cutters 23 move left to cut off the protruding parts of the finished product 5, the fourth springs 26 are compressed, and when the movable die 2 moves right, the third springs 25 are contracted and reset, the movable die 2 drives the moving blocks 21 to move right through the third springs 25, the extruding blocks 27 release the cutters 23 at the same time, the fourth springs 26 drive the cutters 23 to reset, the abutting frames 22 and the cutters 23 move right to reset, and the abutting frames 22 move to the side away from each other through the second inclined rails 24 to reset and release the residual materials.

[0042] When the product 5 is cooled and shaped, the nozzle material in the injection tube 6 is also shaped, and the molten material in the position where the injection mechanism 4 and the injection tube 6 are communicated can also be cooled, and when the next injection is performed, the cooled material will affect the quality of the product 5 as the shaping material, therefore, the embodiment adopts the following scheme:

[0043] As shown in Figure 4 The injection tube 6 is slidably connected with a piston 28, and a perforated plate 30 is slidably connected on the injection tube 6, the perforated plate 30 is used to block the communication port in the position where the injection mechanism 4 and the injection tube 6 are communicated, the right part of the perforated plate 30 is fixedly connected with the piston 28, and the fifth spring 29 is connected between the perforated plate 30 and the injection tube 6.

[0044] When the molten material is injected into the cavity and fills the cavity and the inside of the injection tube 6, the molten material will push the piston 28 to move rightward, the piston 28 drives the perforated plate 30 to move rightward, the fifth spring 29 is stretched, the hole of the perforated plate 30 is dislocated with the communication port, and the perforated plate 30 automatically separates the nozzle material and the material in the injection mechanism 4, in this way, the material in the injection mechanism 4 can be prevented from being cooled, and when the nozzle material is pulled out, the fifth spring 29 drives the piston 28 and the perforated plate 30 to move leftward to reset.

[0045] In order to prevent the molten material near the position of the injection tube 6 from being cooled, a heating ring 31 is arranged on the side of the injection mechanism 4 near the injection tube 6, and the heating ring 31 is used to heat the side of the injection mechanism 4 near the injection tube 6 to prevent the material from being cooled.

[0046] Although the present application is described in detail with reference to the above embodiment, it is obvious to those skilled in the art through the disclosure that various changes or modifications can be made to the present application without departing from the principles and spirit of the application defined in the claims, therefore, the detailed description of the embodiment of the present disclosure is only used for explanation, but not for limitation of the present application, and the protection scope is defined by the content of the claims.

Claims

1. An injection molding device for processing automotive interior, comprising an injection molding machine body (1), an installation frame (101) is arranged on the injection molding machine body (1), a movable mold (2) is slidably connected in the installation frame (101), a fixed mold (3) is fixedly connected to the right wall in the installation frame (101), an injection mechanism (4) is arranged on the injection molding machine body (1), the injection mechanism (4) is communicated with an injection pipe (6) near the side of the fixed mold (3), and the injection pipe (6) is communicated with the fixed mold (3), characterized in that, The fixed mold (3) is provided with blades (7) on the upper and lower sides, the blades (7) are provided with sliding frames (8), the sliding frames (8) and the blades (7) are slidingly connected, and the sliding frames (8) and the mounting frame (101) are slidingly connected.

2. The injection molding device for processing an automotive interior according to claim 1, wherein Further comprising a rotating plate (9), the rotating plate (9) is arranged on the upper and lower sides of the movable mold (2), the rotating plate (9) and the movable mold (2) are rotationally connected, a torsion spring is arranged between the rotating plate (9) and the movable mold (2), the movable mold (2) is fixedly connected with a resisting piece (10) on the side close to the rotating plate (9), the resisting piece (10) and the rotating plate (9) are extrudedly matched, a contact piece (11) is arranged on the side of the sliding frame (8) close to the blade (7), and the contact piece (11) and the rotating plate (9) are extrudedly matched.

3. The injection molding device for processing an automotive interior according to claim 2, wherein Further comprising a threaded rod (12), the threaded rod (12) is arranged on the blade (7) and is threadedly connected with the blade (7), the threaded rod (12) is rotationally connected with the sliding frame (8), the threaded rod (12) is fixedly connected with a gear (13) on the side close to the contact piece (11), the mounting frame (101) is fixedly connected with a rack (14) on the side close to the gear (13), and the rack (14) and the gear (13) are meshed.

4. The injection molding device for processing an automotive interior according to claim 3, wherein The contact piece (11) and the sliding frame (8) are slidingly connected, the contact piece (11) and the mounting frame (101) are slidingly connected, the mounting frame (101) is provided with a first inclined rail (15) on the side close to the rack (14), the first inclined rail (15) and the contact piece (11) are extrudedly matched, and the sliding frame (8) and the mounting frame (101) are connected with a first spring (16).

5. The injection molding apparatus for processing an automotive interior as set forth in claim 4, wherein Further comprising a condensing mechanism (17), the condensing mechanism (17) is arranged on the fixed mold (3) and is fixedly connected with the injection molding machine body (1).

6. The injection molding device for processing an automotive interior according to claim 5, wherein Further comprising a pushing frame (18), the pushing frame (18) is arranged on the side, away from the fixed mold (3), of the movable mold (2) and is slidingly connected with the movable mold (2), the mounting frame (101) is provided with a protruding block (19) on the side close to the pushing frame (18), the protruding block (19) and the pushing frame (18) are extrudedly matched, and the pushing frame (18) and the movable mold (2) are connected with a second spring (20).

7. The injection molding device for processing an automotive interior according to claim 6, wherein Further comprising a moving block (21), the symmetrically arranged moving blocks (21) are slidingly connected with the movable mold (2), the moving block (21) is slidingly connected with a resisting frame (22), the resisting frame (22) and the mounting frame (101) are slidingly connected, the mounting frame (101) is provided with a second inclined rail (24) on the side close to the resisting frame (22), the second inclined rail (24) and the resisting frame (22) are matched, a cutter (23) is arranged on the resisting frame (22), and the cutter (23) and the resisting frame (22) are slidingly connected.

8. The injection molding device for processing an automotive interior according to claim 7, wherein Further comprising a third spring (25), the third spring (25) is connected between the moving block (21) and the movable mold (2), a fourth spring (26) is connected between the cutter (23) and the resisting frame (22), and an extruding block (27) is arranged on the side of the movable mold (2) close to the moving block (21), the extruding block (27) and the cutter (23) are extrudedly matched.

9. The injection molding device for processing an automotive interior according to claim 8, wherein Also include a piston piece (28), piston piece (28) is slidingly connected in injection tube (6), injection tube (6) slidingly connected with a hole plate (30), the hole plate (30) is used for blocking the communication port of the communication position of injection mechanism (4) and injection tube (6), the right part of hole plate (30) and piston piece (28) are fixedly connected, and the fifth spring (29) is connected between the hole plate (30) and the injection tube (6).

10. The injection molding apparatus for processing an automotive interior according to claim 9, wherein Also include a heating ring (31), the heating ring (31) is arranged on the side of injection mechanism (4) close to injection tube (6).

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