Injection molding and shaping device for processing plastic shell part

Abstract

The invention relates to the technical field of plastic part processing, and particularly discloses an injection molding and shaping device for processing a plastic shell part, which comprises lower tapered iron, upper tapered iron, a lower mold and an upper mold, and the lower mold is positioned right below the upper mold; a first inclined plane in the lower inclined iron is attached to a second inclined plane in the upper inclined iron, and the upper inclined iron is connected with a push-pull plate. The mounting frame is arranged on the upper side of the upper inclined iron, the mounting frame is slidably connected with the upper inclined iron, and when the height adjusting power unit pushes the upper inclined iron to move, the mounting frame connected with the mold can keep the stability of the transverse position, so that the mold connected with the mounting frame can only relatively move up and down; meanwhile, parts such as a locking box and a locking power unit are arranged on the mounting frame, after the total height between the upper inclined iron and the lower inclined iron is adjusted, the position between the mounting frame and the upper inclined iron can be locked, and the mold connected with the mounting frame only can relatively move up and down and is always aligned with the other half mold, so that the situation of inclination is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of plastic parts processing, and in particular relates to an injection molding device for processing plastic shell parts. Background Art

[0002] In the process of processing plastic housing parts, injection molding machines are mostly used to process rough blanks.

[0003] When the injection molding machine is injecting, the second plate moves on the guide rail of the machine body under the pulling force of the tie rod. Since the second plate, mold, tail plate and other mold closing parts have a large weight, the guide rail will be deformed, affecting the normal pulling between the tie rod and the second plate, thereby affecting the product quality and the normal use of the injection molding machine. Therefore, a second plate sliding foot device is set between the second plate and the machine body.

[0004] In a new type of hydraulically adjustable two-plate sliding foot structure disclosed in a Chinese patent with a publication number of CN 114633437 B, it is disclosed that the upper inclined iron, the lower inclined iron and the piston rod are slidably mounted on the lower inclined iron, the piston rod is slidably mounted in the upper inclined iron, and the piston rod is adapted to the lower inclined iron. The relative position of the upper inclined iron and the lower inclined iron is adjusted by driving the piston rod, and the height adjustment range of the upper inclined iron and the lower inclined iron is adjusted by adjusting the positional relationship between the piston rod and the lower inclined iron.

[0005] The driving piston rod inside the above-mentioned device can push the upper inclined iron to move along the lower inclined iron, adjust the height of the upper end surface of the upper inclined iron, and change the height of the mold connected to the upper inclined iron accordingly, thereby realizing the function of moving the mold position. However, in the process of pushing the mold to move, the upper inclined iron will not only have a relative displacement up and down, but also a displacement in the left and right directions, and the displacement in the left and right directions will drive the mold connected to it to move synchronously. In this way, the mold will not only move up and down but also move left and right, and the displacement in the left and right directions will easily cause the mold connected to the device to be unable to be aligned with the other half of the mold; therefore, the present application proposes an injection molding device for processing plastic shell parts. Summary of the invention

[0006] The object of the present invention is to provide an injection molding device for processing plastic housing parts to solve the problems raised by the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: an injection molding device for processing a plastic housing part, comprising a lower inclined iron, an upper inclined iron, a lower mold, and an upper mold, wherein the lower mold is located directly below the upper mold;

[0008] The first inclined surface in the lower inclined iron is fitted with the second inclined surface in the upper inclined iron, and the upper inclined iron is connected to the push-pull plate, and the other end of the push-pull plate is connected to the output end of the height adjustment power unit;

[0009] A mounting frame is slidably mounted on one end of the upper inclined iron away from the lower inclined iron;

[0010] A locking power unit is installed on the mounting frame, the locking power unit is connected to the locking block, the locking block is adapted to the locking box installed on the upper inclined iron, and the locking power unit is used to drive the locking block to move, and lock or release the position between the locking box and the locking block.

[0011] Preferably, the output end of the height adjustment power unit passes through a guide seat, and the guide seat is mounted on the lower inclined iron.

[0012] Preferably, a mounting portion is provided on the mounting frame, and two parallel ribs are installed on the upper side of the mounting frame, and the two ribs are respectively located on both sides of the mounting portion.

[0013] Preferably, two parallel sliding blocks are fixedly mounted on one side of the mounting frame close to the upper inclined iron, the sliding blocks are slidably connected to a guide rail, and the guide rail is arranged on a side of the upper inclined iron away from the lower inclined iron.

[0014] Preferably, a guide block is installed on the upper inclined iron, and the guide block is inserted into an inclined groove in the lower inclined iron, and the inclined groove is parallel to the first inclined surface in the lower inclined iron.

[0015] Preferably, two guide blocks are provided, and the two guide blocks are respectively installed at the front and rear ends of the upper inclined iron.

[0016] Preferably, the upper mold is connected to a bracket, and the upper mold is fixedly mounted on the bracket.

[0017] Preferably, a feed port is inserted into the upper mold, and a feed pipe is inserted into the feed port.

[0018] Preferably, four guide members are inserted into the four corners of the upper mold, and four guide holes are provided in the lower mold, and the four guide holes correspond to the four guide members one by one.

[0019] Preferably, guide sleeves are installed on the lower sides of the four corners of the lower mold, and a socket is provided at the center of the guide sleeve, and the socket is aligned with the guide hole.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention provides a mounting frame on the upper side of the upper inclined iron, and the mounting frame is slidably connected to the upper inclined iron. When the height adjustment power unit pushes the upper inclined iron to move, the mounting frame connected to the mold can maintain a stable lateral position, so that the mold connected thereto will only move up and down relative to each other. At the same time, a locking box, a locking power unit and other components are provided on the mounting frame. After the total height between the upper inclined iron and the lower inclined iron is adjusted, the position between the mounting frame and the upper inclined iron can be locked, and the mold connected to the mounting frame will only move up and down relative to each other, and it is always aligned with the other half of the mold, and will not tilt.

[0022] 2. The present invention is internally provided with a lower mold and an upper mold. After the lower mold and the upper mold are pressed together, a molding cavity for shaping the plastic shell part is formed. After the lower mold and the upper mold are combined, the molten plastic raw material enters the molding cavity composed of the upper mold and the lower mold through the feeding pipe, and forms a rough blank of the plastic shell part after cooling. When the lower mold and the upper mold are separated, they move downward, so that the mold in the molding cavity can be taken out from the gap between the lower mold and the upper mold. The lower mold moves downward, and the rough blank of the plastic shell part moves downward with the lower mold, and will fall to a lower height, so that it is convenient to take out the rough blank of the plastic shell part. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the injection molding device for processing plastic shell parts in the present invention.

[0024] Figure 2 This is one of the structural schematic diagrams of the lower inclined iron and the upper inclined iron in the present invention.

[0025] Figure 3 For the present invention Figure 2 Schematic diagram of the structure at A in the middle.

[0026] Figure 4 It is a structural schematic diagram of the locking power unit and the locking block in the present invention.

[0027] Figure 5 It is a schematic structural diagram of the upper inclined iron and the push-pull plate in the present invention.

[0028] Figure 6 This is the second structural schematic diagram of the lower inclined iron and the upper inclined iron in the present invention.

[0029] In the figure: 1. lower inclined iron; 101. inclined slot; 2. upper inclined iron; 201. guide block; 3. push-pull plate; 4. height adjustment power unit; 5. mounting frame; 6. mounting part; 7. locking box; 8. locking power unit; 9. locking block; 10. slider; 11. guide rail; 12. guide seat; 13. lower mold; 14. upper mold; 15. bracket; 16. feed port; 17. guide piece; 18. guide sleeve. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Reference Figure 1-Figure 6, an injection molding device for processing plastic shell parts, comprising a lower inclined iron 1, an upper inclined iron 2, a lower mold 13, and an upper mold 14, the upper mold 14 is connected to a bracket 15, the upper mold 14 is fixedly mounted on the bracket 15, the lower mold 13 is mounted on the mounting portion 6, the lower mold 13 is located directly below the upper mold 14, and a feed port 16 is inserted in the upper mold 14, a feed pipe is inserted in the feed port 16, after the lower mold 13 and the upper mold 14 are pressed together, a molding cavity for shaping the plastic shell part is formed, after the lower mold 13 and the upper mold 14 are combined, the molten plastic raw material enters the molding cavity formed by the upper mold 14 and the lower mold 13 through the feed pipe;

[0032] In order to accurately align the lower mold 13 with the upper mold 14, four guide members 17 are inserted at the four corners of the upper mold 14, and four guide holes are set in the lower mold 13. The four guide holes correspond to the four guide members 17 one by one, and guide sleeves 18 are installed on the lower side of the four corners of the lower mold 13. The center of the guide sleeve 18 is provided with a plug hole, which is aligned with the guide hole. The guide member 17 is always inserted into the lower mold 13. Even if the height adjustment power unit 4 pushes the upper inclined iron 2 to move, the lower mold 13 will only move up and down. The lower mold 13 and the upper mold 14 can be moved together or apart. After the molds are closed, the molten raw material can be fed into the molding cavity to form a rough blank of the plastic shell after cooling. When the lower mold 13 and the upper mold 14 are separated, they move downward, so that the mold in the molding cavity can be taken out from the gap between the lower mold 13 and the upper mold 14. The lower mold 13 moves downward, and the rough blank of the plastic shell moves down with the lower mold 13 and falls to a lower height. In this way, it is convenient to take out the rough blank of the plastic shell.

[0033] When the injection molding machine is injecting, the second plate moves on the guide rail of the machine body under the pulling force of the tie rod. Since the second plate, mold, tail plate and other mold closing parts have a large weight, the guide rail will be deformed, affecting the normal pulling between the tie rod and the second plate, thereby affecting the product quality and the normal use of the injection molding machine. Therefore, a second plate sliding foot device is set between the second plate and the machine body. In order to make the second plate sliding foot device run stably, the following components are set.

[0034] The first inclined surface in the lower inclined iron 1 fits with the second inclined surface in the upper inclined iron 2, the upper inclined iron 2 is connected to the push-pull plate 3, and the other end of the push-pull plate 3 is connected to the output end of the height adjustment power unit 4. The height adjustment power unit 4 has a variety of options, and a hydraulic cylinder or an electric telescopic rod can be selected. It is used to push the push-pull plate 3 to move, and the upper inclined iron 2 is pushed along the lower inclined iron 1 through the push-pull plate 3 to adjust the maximum distance between the upper inclined iron 2 and the lower inclined iron 1, thereby adjusting the height of the mold connected to the above-mentioned device.

[0035] It should be noted that the output end of the height adjustment power unit 4 passes through the guide seat 12. The output end of the height adjustment power unit 4 is a telescopic rod, which can slide relative to the guide seat 12. The guide seat 12 provides guidance for the movement of the output end of the telescopic rod. When the telescopic rod of the height adjustment power unit 4 is subjected to forces from other directions, the guide seat 12 can support the forces in other directions to a certain extent, alleviate the tendency of the telescopic rod to bend, and the guide seat 12 is installed on the lower inclined iron 1.

[0036] In a further embodiment, a mounting frame 5 is slidably installed at one end of the upper inclined iron 2 away from the lower inclined iron 1, and a mounting portion 6 is provided on the mounting frame 5. The mounting portion 6 serves as a point for connecting the mounting frame 5 with a mold in the die-casting machine. Two parallel ribs are installed on the upper side of the mounting frame 5, and the two ribs are respectively located on both sides of the mounting portion 6.

[0037] The mounting frame 5 is slidably connected to the upper inclined iron 2, and the upper inclined iron 2 and the mounting frame 5 can move relative to each other. Therefore, when the upper inclined iron 2 moves, the mounting frame 5 connected thereto can maintain a stable lateral position. In this way, the mold connected thereto will only move up and down relative to each other. In order to lock the position between the mounting frame 5 and the upper inclined iron 2 after the total height between the upper inclined iron 2 and the lower inclined iron 1 is adjusted, a locking power unit 8 is installed on the mounting frame 5. The locking power unit 8 is connected to a locking block 9. The locking block 9 is adapted to a locking box 7 installed on the upper inclined iron 2. The two can be plugged in, and the locking block 9 can also move along the locking box 7.

[0038] The locking power unit 8 is activated to lock or release the position between the mounting frame 5 and the upper inclined iron 2 through the locking block 9, which includes multiple operation modes, one of which is to increase the friction coefficient of the end of the locking block 9 away from the locking power unit 8, and after the height adjustment of the upper inclined iron 2 is completed, let the locking block 9 abut against the inner wall of the locking box 7, and fix the relative position between the mounting frame 5 and the upper inclined iron 2 through friction force to prevent the relative displacement between the two.

[0039] Another operating method is: multiple cavities are set in the locking box 7. After the height adjustment of the upper inclined iron 2 is completed, the locking block 9 is inserted into the corresponding cavity. When locked in this way, once the locking block 9 is inserted into the cavity, it cannot move left and right relative to each other, and the locking is more stable. However, when the total height value between the upper inclined iron 2 and the lower inclined iron 1 is adjusted, the change in value needs to be a multiple of the cavity width. The previous operating method can realize the locking work at each position, so that the adjustment of the height of the upper inclined iron 2 is more selective.

[0040] In a further embodiment, two parallel sliding blocks 10 are fixedly mounted on one side of the mounting frame 5 close to the upper inclined iron 2, and the sliding blocks 10 are slidably connected to the guide rails 11, and the guide rails 11 are arranged on the side of the upper inclined iron 2 away from the lower inclined iron 1. The movement of the mounting frame 5 is guided by the sliding blocks 10 and the guide rails 11, so that the mounting frame 5 will not deviate when moving relative to the upper inclined iron 2, and the mold connected thereto can be prevented from tilting.

[0041] A mounting frame 5 is provided on the upper side of the upper inclined iron 2, and the mounting frame 5 is slidably connected to the upper inclined iron 2. When the height adjustment power unit 4 pushes the upper inclined iron 2 to move, the mounting frame 5 connected to the lower mold 13 can maintain a stable lateral position, so that the mold connected thereto (that is, the movable lower mold 13) will only move up and down relative to each other. At the same time, components such as a locking box 7 and a locking power unit 8 are provided on the mounting frame 5. After the total height between the upper inclined iron 2 and the lower inclined iron 1 is adjusted, the position between the mounting frame 5 and the upper inclined iron 2 can be locked, and the mold connected to the mounting frame 5 will only move up and down relative to each other, and it is always aligned with the other half of the mold (that is, the upper mold 14) and will not tilt.

[0042] The upper inclined iron 2 is located on the upper side of the lower inclined iron 1. When the upper inclined iron 2 is pushed to move, under the total gravity of gravity, its upper parts and the mold connected to it, the upper inclined iron 2 is always in contact with the lower inclined iron 1. However, when the upper inclined iron 2 or the lower inclined iron 1 and other parts are not placed forward but reversely, there is a gap between the upper inclined iron 2 and the lower inclined iron 1. Therefore, a guide block 201 is installed on the upper inclined iron 2. The guide block 201 is inserted into the inclined groove 101 in the lower inclined iron 1. The inclined groove 101 is parallel to the first inclined surface in the lower inclined iron 1. Two guide blocks 201 are provided, and the two guide blocks 201 are respectively installed at the front and rear ends of the upper inclined iron 2.

[0043] The guide block 201 and the inclined groove 101 further limit the direction of relative displacement between the upper inclined iron 2 and the lower inclined iron 1 to avoid offset when the two move. At the same time, the guide block 201 and the inclined groove 101 can keep the lower inclined iron 1 and the upper inclined iron 2 in contact with each other, so that the device can adapt to the feeding and returning of the mold in both forward and reverse situations (the return situation is when the lower inclined iron 1 is on the upper side and the upper inclined iron 2 is on the lower side), and the device has a wider range of adaptability.

[0044] Working principle:

[0045] The height adjustment power unit 4 is used to push the push-pull plate 3 to move, and the push-pull plate 3 pushes the upper inclined iron 2 to move along the lower inclined iron 1, so as to adjust the maximum distance between the upper inclined iron 2 and the lower inclined iron 1, thereby adjusting the height of the mold connected to the above device;

[0046] A mounting frame 5 is arranged on the upper side of the upper inclined iron 2, and the mounting frame 5 is slidably connected to the upper inclined iron 2. When the height adjustment power unit 4 pushes the upper inclined iron 2 to move, the mounting frame 5 connected to the mold can maintain a stable lateral position, so that the mold connected thereto will only move up and down relative to each other. At the same time, components such as a locking box 7 and a locking power unit 8 are arranged on the mounting frame 5. After the total height between the upper inclined iron 2 and the lower inclined iron 1 is adjusted, the position between the mounting frame 5 and the upper inclined iron 2 can be locked.

[0047] After the lower mold 13 and the upper mold 14 are pressed together, a molding cavity for shaping the plastic shell part is formed. After the lower mold 13 and the upper mold 14 are combined, the molten plastic raw material enters the molding cavity composed of the upper mold 13 and the lower mold 14 through the feeding pipe, and forms a rough blank of the plastic shell part after cooling. When the lower mold 13 and the upper mold 14 are separated, they move downward, so that the mold in the molding cavity can be taken out from the gap between the lower mold 13 and the upper mold 14. The lower mold 13 moves downward, and the rough blank of the plastic shell part moves downward with the lower mold 13, and will fall to a lower height, thus facilitating the removal of the rough blank of the plastic shell part.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection molding device for processing plastic housing parts, characterized in that: It comprises a lower inclined iron (1), an upper inclined iron (2), a lower mold (13), and an upper mold (14), wherein the lower mold (13) is located directly below the upper mold (14); The first inclined surface in the lower inclined iron (1) is fitted with the second inclined surface in the upper inclined iron (2), and is characterized in that the upper inclined iron (2) is connected to the push-pull plate (3), and the other end of the push-pull plate (3) is connected to the output end of the height adjustment power unit (4); A mounting frame (5) is slidably mounted on one end of the upper inclined iron (2) away from the lower inclined iron (1); A locking power unit (8) is installed on the mounting frame (5), the locking power unit (8) is connected to a locking block (9), the locking block (9) is adapted to a locking box (7) installed on the upper inclined iron (2), and the locking power unit (8) is used to drive the locking block (9) to move, thereby locking or releasing the position between the locking box (7) and the locking block (9).

2. The injection molding device for processing plastic housing parts according to claim 1, characterized in that: The output end of the height adjustment power unit (4) passes through the guide seat (12), and the guide seat (12) is installed on the lower inclined iron (1).

3. The injection molding device for processing plastic housing parts according to claim 1, characterized in that: The mounting frame (5) is provided with a mounting portion (6), and two parallel ribs are mounted on the upper side of the mounting frame (5), the two ribs being located on both sides of the mounting portion (6) respectively.

4. The injection molding device for processing plastic housing parts according to claim 1, characterized in that: Two parallel sliding blocks (10) are fixedly mounted on one side of the mounting frame (5) close to the upper inclined iron (2); the sliding blocks (10) are slidably connected to a guide rail (11), and the guide rail (11) is arranged on a side of the upper inclined iron (2) away from the lower inclined iron (1).

5. The injection molding device for processing plastic housing parts according to claim 1, characterized in that: A guide block (201) is installed on the upper inclined iron (2), and the guide block (201) is inserted into an inclined groove (101) in the lower inclined iron (1), and the inclined groove (101) is parallel to the first inclined surface in the lower inclined iron (1).

6. The injection molding device for processing plastic housing parts according to claim 5, characterized in that: Two guide blocks (201) are provided, and the two guide blocks (201) are respectively mounted on the front and rear ends of the upper inclined iron (2).

7. The injection molding device for processing plastic housing parts according to claim 1, characterized in that: The upper mold (14) is connected to a bracket (15), and the upper mold (14) is fixedly mounted on the bracket (15).

8. The injection molding device for processing plastic housing parts according to claim 7, characterized in that: A feed port (16) is inserted into the upper mold (14), and a feed pipe is inserted into the feed port (16).

9. The injection molding device for processing plastic housing parts according to claim 8, characterized in that: Four guide members (17) are inserted into the four corners of the upper mold (14), and four guide holes are arranged in the lower mold (13), and the four guide holes correspond to the four guide members (17) one by one.

10. The injection molding device for processing plastic housing parts according to claim 9, characterized in that: Guide sleeves (18) are installed on the lower sides of the four corners of the lower mold (13), and a plug hole is arranged at the center of the guide sleeve (18), and the plug hole is aligned with the guide hole.

Images