Plastic side core-pulling injection mold

Abstract

The utility model discloses a plastic side core-pulling injection mold, and particularly relates to the technical field of plastic core pulling, the plastic side core-pulling injection mold comprises a first mold, a second mold and a sealing piston, one side of the second mold is contacted with the first mold, and the sealing piston is in threaded connection with the top end of the first mold; mold cores are movably arranged on the opposite sides of the first mold and the second mold, a mounting frame is arranged between the two mold cores, a moving assembly is arranged on the mounting frame, and the moving assembly comprises a transfer box, an air inlet pipe, two piston cylinders, two piston rods and two valves. The output end of the negative pressure pump is fixedly communicated with the air inlet pipe, the negative pressure pump works to generate suction force, so that the piston rod is driven to move in the piston barrel, the extrusion plate is driven to extrude the mold core, the position of the mold core in the first mold is adjusted according to requirements, the position of the other mold core in the second mold is adjusted in a similar way, operation is easy, and the production efficiency is improved. Lateral characteristic forming can be conveniently carried out on the other side of the product, and the application range is wide.

Description

TECHNICAL FIELD

[0001] The utility model relates to plastic core pulling technology field, more specifically, the utility model relates to a kind of plastic side core pulling injection mold. BACKGROUND

[0002] Plastic side core pulling injection mold is a mold for manufacturing plastic products with complex geometric shape, which realizes the side feature forming of plastic parts by adding side core pulling mechanism in the mold, and the side core pulling mechanism has various types, including inclined guide pillar side core pulling mechanism, bent pin side core pulling mechanism, inclined slider side core pulling mechanism and hydraulic or pneumatic side core pulling mechanism.

[0003] According to the search, the Chinese patent with publication number CN219522905U discloses a plastic side core pulling injection mold, which starts the electric cylinder on the circular arc support plate, drives the inclined suction cup installed on the electric cylinder to adsorb the left and right outer walls of the mold core, drives the slider connected with the mold core to slide in the sliding groove to separate, demolds the formed plastic part in the mold core and falls into the tank for unified collection. This device can also greatly improve the efficiency of taking plastic parts and improve the processing speed.

[0004] The above-mentioned injection mold, when in use, the motor works to drive the push plate to contact the support plate on the left end, provides a fulcrum for the push plate and the push rod, so that they drive the sliding plate and the mold core to slide away from the mold. However, the mold core can only form side features on one side of the product, which is not convenient for forming side features on the other side of the product, and the scope of application is small. UTILITY MODEL CONTENT

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a plastic side core pulling injection mold, which aims to solve the problems raised in the above background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a plastic side core pulling injection mold, comprising a first mold, a second mold and a sealing piston, and one side of the second mold is in contact with the first mold, the sealing piston is threadedly connected with the top end of the first mold, the opposite sides of the first mold and the second mold are both movably provided with a mold core, an installation rack is arranged between the two mold cores, a moving assembly is arranged on the installation rack, the moving assembly comprises a transfer box, an air inlet pipe, two piston cylinders, two piston rods and two valves, the transfer box is fixedly installed at the inner bottom end of the installation rack, the rear end of the air inlet pipe is fixedly communicated with the transfer box, the opposite ends of the two piston cylinders are both fixedly communicated with the transfer box, the opposite ends of the two piston rods are respectively fixedly connected with two pressing plates, and the opposite ends of the two piston rods respectively penetrate through the two piston cylinders.

[0007] Further, the two sides of the transfer box are movably provided with valves, and the two valves are fixedly installed on the two piston cylinders.

[0008] Further, the top end of the transfer box is fixedly connected with a vertical plate, the two sides of the vertical plate are fixedly connected with two first limiting rods, and the opposite ends of the two first limiting rods respectively penetrate through the two extrusion plates.

[0009] It can be seen that, in the above technical solution, the extrusion plate slides on the first limiting rod, which can prevent the extrusion plate from deflecting when moving horizontally.

[0010] Further, the opposite sides of the first mold and the second mold are fixedly connected with U-shaped plates, the two U-shaped plates are provided with limiting assemblies, and the two limiting assemblies each include two side plates, two slide rods, two circular plates and two springs.

[0011] Further, one end of each of the four slide rods and the four springs is fixedly connected with the two U-shaped plates, and the other end of each of the four springs is fixedly connected with the four circular plates, the four circular plates and the four springs are movably sleeved on the four slide rods, and the two sides of each of the four side plates are fixedly connected with the two mold cores and the four circular plates.

[0012] It can be seen that, in the above technical solution, when the extrusion plate moves away from the mold core, the two springs rebound to drive the mold core away from the first mold.

[0013] Further, a mold dismounting assembly is arranged between the first mold and the second mold, and the mold dismounting assembly includes a motor, a reversible screw rod, a second limiting rod and four edge plates.

[0014] Further, the motor is fixedly installed on the mounting frame, and the output shaft end of the motor is fixedly connected with the reversible screw rod, the other end of the reversible screw rod is movably connected with the mounting frame through a bearing, and the two ends of the second limiting rod are fixedly connected with the mounting frame, the four edge plates are movably sleeved on the reversible screw rod and the second limiting rod, and one side of each of the four edge plates is fixedly connected with the first mold and the second mold.

[0015] It can be seen that, in the above technical solution, the product is conveniently demolded.

[0016] The technical effects and advantages of the utility model are as follows:

[0017] 1. The utility model discloses a negative pressure pump output end and air inlet pipe fixed communication, then open the valve at the bottom of the first mold, the negative pressure pump works and produces suction, thereby drive piston rod moves in the piston cylinder, and then drive extrusion plate extrudes mold core, according to the demand adjustment mold core position in the first mold, and the position of another mold core in the second mold is adjusted, and the operation is simple, and the other side of the product is conveniently formed with lateral characteristics, and the application range is wide.

[0018] 2、The utility model discloses a motor works and drives positive and negative screw rod rotation, because two edge boards are all with positive and negative screw rod threaded connection, and the other two edge boards and second limit rod cooperation limit first mould and second mould rotation, so positive and negative screw rod can drive first mould and second mould opposite movement, finally take out the product in first mould and second mould, simple operation, convenient stripping. BRIEF DESCRIPTION OF DRAWINGS

[0019] The structure, proportion, size etc. shown in the specification are only used to cooperate the content disclosed in the specification, for understanding and reading of the person skilled in the art, and not used to limit the limitation condition that the utility model can be implemented, so it does not have the substantial meaning of technology, and any modification of structure, change of proportion relationship or adjustment of size, under the condition that does not influence the effect and the purpose that the utility model can produce, should still fall in the range that the technology content disclosed in the utility model can cover.

[0020] Figure 1 It is the overall structure schematic diagram of the utility model;

[0021] Figure 2 It is the overall structure bottom view of the utility model;

[0022] Figure 3 It is the first mould and stripping assembly assembly structure schematic diagram of the utility model;

[0023] Figure 4 It is the mobile subassembly structure schematic diagram of the utility model;

[0024] Figure 5 It is the mould core and slide rod assembly structure schematic diagram of the utility model.

[0025] In the drawing: 1, first mould;2, second mould;3, sealing piston;4, mounting frame;5, mobile subassembly;6, stripping assembly;7, U-shaped plate;8, mould core;9, side plate;10, slide rod;11, round plate;12, spring;501, transfer box;502, air inlet pipe;503, piston cylinder;504, piston rod;505, valve;506, extrusion plate;507, vertical plate;508, first limit rod;601, motor;602, positive and negative screw rod;603, second limit rod;604, edge board. DETAILED DESCRIPTION

[0026] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Refer to the instruction manual appendix Figures 1-5 This embodiment of a plastic side-pulling injection mold includes a first mold 1, a second mold 2, and a sealing piston 3. One side of the second mold 2 is in contact with the first mold 1. The sealing piston 3 is threadedly connected to the top of the first mold 1. Both the first mold 1 and the second mold 2 have movably arranged mold cores 8 on opposite sides. A mounting frame 4 is arranged between the two mold cores 8. A moving component 5 is arranged on the mounting frame 4. The moving component 5 includes a transfer box 501, an air inlet pipe 502, two piston cylinders 503, two piston rods 504, and two valves 505. The transfer box 501 is fixedly installed at the bottom of the mounting frame 4. The rear end of the air inlet pipe 502 is fixedly connected to the transfer box 501. The opposite ends of the two piston cylinders 503 are fixedly connected to the transfer box 501. The opposite ends of the two piston rods 504 are fixedly connected to two extrusion plates 506, and the opposite ends of the two piston rods 504 pass through the two piston cylinders 503.

[0028] Furthermore, valves 505 are movably installed on both sides of the transfer box 501, and the two valves 505 are respectively fixedly installed on the two piston cylinders 503. A vertical plate 507 is fixedly connected to the top of the transfer box 501. Two first limiting rods 508 are fixedly connected to both sides of the vertical plate 507, and the opposite ends of the two first limiting rods 508 pass through the two extrusion plates 506 respectively.

[0029] Furthermore, U-shaped plates 7 are fixedly connected to the opposite sides of the first mold 1 and the second mold 2. Limiting components are provided on both U-shaped plates 7. Each limiting component includes two side plates 9, two sliding rods 10, two circular plates 11, and two springs 12. One end of each of the four sliding rods 10 and the four springs 12 is fixedly connected to the two U-shaped plates 7, and the other end of each of the four springs 12 is fixedly connected to the four circular plates 11. The four circular plates 11 and the four springs 12 are movably sleeved on the four sliding rods 10. The two sides of the four side plates 9 are fixedly connected to the two mold cores 8 and the four circular plates 11, respectively.

[0030] Furthermore, a demolding assembly 6 is provided between the first mold 1 and the second mold 2. The demolding assembly 6 includes a motor 601, a forward and reverse lead screw 602, a second limiting rod 603, and four side plates 604. The motor 601 is fixedly mounted on the mounting frame 4, and the output shaft end of the motor 601 is fixedly connected to the forward and reverse lead screw 602. The other end of the forward and reverse lead screw 602 is movably connected to the mounting frame 4 through a bearing. Both ends of the second limiting rod 603 are fixedly connected to the mounting frame 4. The four side plates 604 are respectively movably sleeved on the forward and reverse lead screw 602 and the second limiting rod 603, and one side of each of the four side plates 604 is fixedly connected to the first mold 1 and the second mold 2.

[0031] During demolding, the motor 601 is started, which drives the positive and negative lead screws 602 to rotate. Since two side plates 604 are threadedly connected to the positive and negative lead screws 602, and the other two side plates 604 cooperate with the second limiting rod 603 to restrict the rotation of the first mold 1 and the second mold 2, the positive and negative lead screws 602 can drive the first mold 1 and the second mold 2 to move in opposite directions. Finally, the product in the first mold 1 and the second mold 2 is taken out. The operation is simple and convenient for demolding. Similarly, the motor 601 reverses to drive the first mold 1 and the second mold 2 to move towards each other. It is worth noting that a sealing gasket is set between the first mold 1 and the second mold 2 to prevent raw materials from overflowing.

[0032] The usage method of this embodiment is as follows:

[0033] In use, the operator rotates the sealing piston 3 away from the first mold 1, then adds raw material between the first mold 1 and the second mold 2. The output end of the negative pressure pump is fixedly connected to the air inlet pipe 502. Then, the valve 505 at the bottom of the first mold 1 is opened, and the negative pressure pump generates suction, which drives the piston rod 504 to move inside the piston cylinder 503, thereby driving the extrusion plate 506 to extrude the mold core 8. The position of the mold core 8 in the first mold 1 is adjusted as needed. Similarly, the valve 505 at the bottom of the first mold 1 is closed and the valve 505 at the bottom of the second mold 2 is opened to adjust the position of the other mold core 8 in the second mold 2. The operation is simple and convenient for lateral feature forming on the other side of the product. It has a wide range of applications. At the same time, the extrusion plate 506 slides on the first limit rod 508 to prevent the extrusion plate 506 from deflecting when moving horizontally. The mold core 8 can also drive the two side plates 9 to slide on the two slide rods 10 respectively, thereby driving the two springs 12 to compress. When the extrusion plate 506 moves away from the mold core 8, the two springs 12 rebound and drive the mold core 8 away from the first mold 1.

[0034] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plastic side-pulling injection mold, comprising a first mold (1), a second mold (2), and a sealing piston (3), wherein one side of the second mold (2) is in contact with the first mold (1), and the sealing piston (3) is threadedly connected to the top end of the first mold (1), characterized in that: The first mold (1) and the second mold (2) are each provided with a mold core (8) on opposite sides. A mounting frame (4) is provided between the two mold cores (8). A moving component (5) is provided on the mounting frame (4). The moving component (5) includes a transfer box (501), an air inlet pipe (502), two piston cylinders (503), two piston rods (504), and two valves (505). The transfer box (501) is fixedly installed at the bottom of the mounting frame (4). The rear end of the air inlet pipe (502) is fixedly connected to the transfer box (501). The opposite ends of the two piston cylinders (503) are fixedly connected to the transfer box (501). The opposite ends of the two piston rods (504) are fixedly connected to the two extrusion plates (506), and the opposite ends of the two piston rods (504) pass through the two piston cylinders (503).

2. The plastic side-pulling injection mold according to claim 1, characterized in that: The transfer box (501) is equipped with valves (505) on both sides, and the two valves (505) are fixedly installed on the two piston cylinders (503).

3. The plastic side-pulling injection mold according to claim 1, characterized in that: The top of the transfer box (501) is fixedly connected to a vertical plate (507), and two first limiting rods (508) are fixedly connected to both sides of the vertical plate (507), and the two first limiting rods (508) are respectively connected to two extrusion plates (506) at opposite ends.

4. The plastic side-pulling injection mold according to claim 1, characterized in that: The first mold (1) and the second mold (2) are fixedly connected to U-shaped plates (7) on opposite sides. Both U-shaped plates (7) are provided with limit components. Both limit components include two side plates (9), two slide rods (10), two round plates (11) and two springs (12).

5. The plastic side-pulling injection mold according to claim 4, characterized in that: One end of each of the four slide rods (10) and the four springs (12) is fixedly connected to two U-shaped plates (7), and the other end of each of the four springs (12) is fixedly connected to four circular plates (11). The four circular plates (11) and the four springs (12) are movably sleeved on the four slide rods (10). The two sides of each of the four side plates (9) are fixedly connected to two mold cores (8) and four circular plates (11).

6. The plastic side-pulling injection mold according to claim 1, characterized in that: A demolding assembly (6) is provided between the first mold (1) and the second mold (2). The demolding assembly (6) includes a motor (601), a positive and negative lead screw (602), a second limiting rod (603), and four side plates (604).

7. The plastic side-pulling injection mold according to claim 6, characterized in that: The motor (601) is fixedly mounted on the mounting frame (4), and the output shaft end of the motor (601) is fixedly connected to the positive and negative lead screw (602). The other end of the positive and negative lead screw (602) is movably connected to the mounting frame (4) through a bearing. Both ends of the second limiting rod (603) are fixedly connected to the mounting frame (4). The four side plates (604) are respectively movably sleeved on the positive and negative lead screw (602) and the second limiting rod (603), and one side of the four side plates (604) is fixedly connected to the first mold (1) and the second mold (2) respectively.

Images