Plastic production forming device

Abstract

The utility model relates to the technical field of plastic production, in particular to a plastic production forming device which comprises a workbench, one side of the workbench is fixedly connected with a lower die body, the top of the workbench is fixedly connected with a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected with an upper die body, and the output end of the upper die body is fixedly connected with a lower die body. The two sides of the upper die body are each fixedly connected with a connecting rod. The injection mold has the advantages that after injection molding, the hydraulic cylinder drives the upper mold body to ascend, the connecting rod drives the bottom plate and the driving rod to ascend, and after the driving rod ascends to a certain height, the bottom plate can abut against the top of the driven rod to ascend, so that the ejection plate is driven to eject a molded product, and the injection mold is very convenient to use; after the upper die body descends, the bottom plate is driven to descend, the driven rod jacked up by the bottom plate also descends to the bottom of the lower die body under the action of gravity, the driven rod can be pulled to descend by arranging the driving rod, and the ejector plate can be prevented from being clamped in the lower die body in the descending process.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic production, in particular to a plastic production and molding device. Background Technique

[0002] An injection molding machine, also known as an injection molding machine or an injection machine, is the main molding equipment for making various shaped plastic products from thermoplastic or thermosetting plastics using plastic molding dies. It is divided into vertical, horizontal, and all-electric types. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity. After the mold is cooled for a period of time, the plastic inside can be molded.

[0003] After the existing injection molding machine completes the injection molding process, the plastic molded inside its mold is not convenient to take out, causing great difficulties to the operators.

[0004] In view of this, the utility model proposes a plastic production and molding device to solve this problem. Content of the Utility Model

[0005] The purpose of the utility model aims to solve at least one of the technical defects.

[0006] For this reason, one purpose of the utility model is to propose a plastic production and molding device to solve the problems mentioned in the background technique and overcome the deficiencies in the existing technology.

[0007] To achieve the above purpose, an embodiment of one aspect of the utility model provides a plastic production and molding device, including a workbench. One side of the workbench is fixedly connected with a lower mold body. The top of the workbench is fixedly connected with a hydraulic cylinder. The output end of the hydraulic cylinder is fixedly connected with an upper mold body. One side of each of the two sides of the upper mold body is fixedly connected with a connecting rod. One side of the two connecting rods is fixedly connected with an ejection mechanism. The ejection mechanism includes a bottom plate. The top of the bottom plate is fixedly connected with two active rods. The outer surfaces of the two active rods are sleeved with two passive rods. The tops of the two passive rods are fixedly connected with an ejection plate.

[0008] Preferably, one first through hole is respectively opened on both sides of the workbench. One side of each first through hole is fixedly connected with a ball sleeve. The outer surfaces of the two connecting rods are slidably connected to the inner surfaces of the ball sleeves. The outer surfaces of the connecting rods are in contact with the balls inside the ball sleeves.

[0009] Preferably, two second through holes are opened on the inner bottom wall of the lower mold body. The second through holes penetrate to the bottom of the workbench. One positioning hole is respectively opened at the four corners of the top of the lower mold body.

[0010] Preferably, in any of the above solutions, a positioning block is fixedly connected to each of the four corners of the bottom of the upper die body. The outer surfaces of the four positioning blocks are respectively inserted into the inner surfaces of the positioning holes, and a chamfer is provided at the bottom of the positioning block.

[0011] The technical effect achieved by adopting the above solution is: more convenient positioning.

[0012] Preferably, in any of the above solutions, a convex plate is fixedly connected to each of the two sides of the upper die body. One side of each of the two connecting rods is fixedly connected to one side of the convex plate, and the other side of the connecting rod is fixedly connected to one side of the bottom plate.

[0013] Preferably, in any of the above solutions, the outer surface of the driving rod is adapted to the inner surface of the driven rod. The outer surface of the driving rod is slidably connected to the inner surface of the driven rod, and a limiting block is fixedly connected to the top end of the driving rod.

[0014] The technical effect achieved by adopting the above solution is: preventing the driving rod from disengaging from the driven rod.

[0015] Preferably, in any of the above solutions, the outer surface of the driven rod is adapted to the inner surface of the second through hole. The driven rod is slidably connected to the inner surfaces of the two second through holes. The size of the ejector plate is adapted to the internal size of the lower die body. The ejector plate is driven by the driven rod and is slidably connected to the inside of the lower die body.

[0016] The technical effect achieved by adopting the above solution is: ejecting the formed product through the ejector plate.

[0017] Compared with the prior art, the advantages and beneficial effects of the present utility model are:

[0018] In the present utility model, connecting rods are fixedly connected to both sides of the upper die body. After injection molding, the hydraulic cylinder drives the upper die body to rise, and the bottom plate and the driving rod are driven to rise through the connecting rods. When the driving rod rises to a certain height, the bottom plate will push against the top of the driven rod to rise, thereby driving the ejector plate to eject the formed product, which is very convenient to use. When the next injection molding is carried out, the upper die body drives the bottom plate to descend after descending. The driven rod lifted by the bottom plate will also descend to the bottom of the lower die body under the action of gravity. The driving rod is provided to pull the driven rod to descend, which can prevent the ejector plate from getting stuck in the lower die body during the descending process.

[0019] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. Description of the Drawings

[0020] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0021] Figure 1 is a schematic diagram of the overall structure according to an embodiment of the present utility model;

[0022] Figure 2 is a schematic cross-sectional structure diagram of the first state according to an embodiment of the present utility model;

[0023] Figure 3 is a schematic cross-sectional structure diagram of the second state according to an embodiment of the present utility model;

[0024] Figure 4 is a schematic diagram of the bottom plate connection structure according to an embodiment of the present utility model;

[0025] Figure 5 is a schematic diagram of the ejector plate connection structure according to an embodiment of the present utility model.

[0026] In the figure: 1 - workbench, 101 - ball sleeve, 2 - lower die body, 201 - positioning hole, 3 - hydraulic cylinder, 4 - upper die body, 401 - positioning block, 402 - convex plate, 5 - connecting rod, 6 - ejecting mechanism, 7 - bottom plate, 8 - driving rod, 801 - limiting block, 9 - driven rod, 10 - ejector plate. Specific embodiments

[0027] As Figures 1 to 5 shown, a plastic production and molding device includes a workbench 1. A lower die body 2 is fixedly connected to one side of the workbench 1. A hydraulic cylinder 3 is fixedly connected to the top of the workbench 1. The output end of the hydraulic cylinder 3 is fixedly connected to an upper die body 4. A connecting rod 5 is fixedly connected to each side of the upper die body 4. An ejecting mechanism 6 is fixedly connected to one side of the two connecting rods 5. The ejecting mechanism 6 includes a bottom plate 7. Two driving rods 8 are fixedly connected to the top of the bottom plate 7. Two driven rods 9 are sleeved on the outer surfaces of the two driving rods 8. A top plate 10 is fixedly connected to the tops of the two driven rods 9. By setting the driving rod 8 and the driven rod 9 as two separate sections, the total length of the two when the ejector plate 10 is in the ejecting state can be shortened, avoiding the situation that the height of the ejector plate 10 is too high in the ejecting state due to the excessive length of the integrated type, resulting in a small space between the finished product and the upper die body 4 and making it inconvenient to take out the finished product. Among them, the driven rod 9 is lifted by the bottom plate 7 rather than by the driving rod 8. The length of the driving rod 8 is shorter than that of the driven rod 9. The main function of the driving rod 8 is to pull the driven rod 9 down during the descending process to avoid the situation that the driven rod 9 is stuck in the lower die body 2 and cannot descend.

[0028] On both sides of the workbench 1, a first through hole is respectively opened. On one side of each first through hole, a ball sleeve 101 is fixedly connected. The outer surfaces of the two connecting rods 5 are slidably connected to the inner surface of the ball sleeve 101, and the outer surfaces of the connecting rods 5 are in contact with the balls inside the ball sleeve 101. By setting the ball sleeve 101 to limit the connecting rods 5, the friction between the ball sleeve 101 and the connecting rods 5 can be reduced, making the rising and falling processes of the connecting rods 5 smoother.

[0029] On the inner bottom wall of the lower die body 2, two second through holes are opened, and the second through holes penetrate to the bottom of the workbench 1. At the four corners of the top of the lower die body 2, a positioning hole 201 is respectively opened.

[0030] At the four corners of the bottom of the upper die body 4, a positioning block 401 is respectively fixedly connected. The outer surfaces of the four positioning blocks 401 are respectively inserted into the inner surfaces of the positioning holes 201. A chamfer is provided at the bottom of the positioning block 401. The chamfer reduces the bottom volume of the positioning block 401, enabling the positioning block 401 to enter the inside of the positioning hole 201 more conveniently. There is an injection hole on the upper die body 4 for injection molding.

[0031] On both sides of the upper die body 4, a convex plate 402 is respectively fixedly connected. One side of the two connecting rods 5 is respectively fixedly connected to one side of the convex plate 402, and the other side of the connecting rod 5 is fixedly connected to one side of the bottom plate 7.

[0032] The outer surface of the driving rod 8 is adapted to the inner surface of the driven rod 9. The outer surface of the driving rod 8 is slidably connected to the inner surface of the driven rod 9. A limit block 801 is fixedly connected to the top end of the driving rod 8, and the limit block 801 prevents the driving rod 8 from disengaging from the driven rod 9.

[0033] The outer surface of the driven rod 9 is adapted to the inner surface of the second through hole. The driven rod 9 is slidably connected to the inner surfaces of the two second through holes. The size of the ejector plate 10 is adapted to the inner size of the lower die body 2. The ejector plate 10 is driven by the driven rod 9 and is slidably connected to the inside of the lower die body 2. Sealing measures are provided between the driven rod 9 and the second through hole and between the ejector plate 10 and the inner wall of the lower die body 2 to prevent leakage during the injection molding process.

[0034] Compared with the prior art, the present utility model has the following beneficial effects over the prior art:

[0035] In this utility model, connecting rods 5 are fixedly connected to both sides of the upper die body 4. After injection molding, the hydraulic cylinder 3 drives the upper die body 4 to rise, and drives the bottom plate 7 and the driving rod 8 to rise through the connecting rods 5. When the driving rod 8 rises to a certain height, the bottom plate 7 will push against the top of the driven rod 9 to rise, thereby driving the ejector plate 10 to eject the molded product, which is very convenient to use. When the next injection molding is carried out, the upper die body 4 drives the bottom plate 7 to descend after descending, and the driven rod 9 lifted by the bottom plate 7 will also descend to the bottom of the lower die body 2 under the action of gravity. The setting of the driving rod 8 can pull the driven rod 9 to descend, which can prevent the ejector plate 10 from being stuck in the lower die body 2 during the descending process.

Claims

1. A plastic production molding device, characterized in that: The invention comprises a workbench (1), wherein a lower mold body (2) is fixedly connected to one side of the workbench (1), a hydraulic cylinder (3) is fixedly connected to the top of the workbench (1), an upper mold body (4) is fixedly connected to the output end of the hydraulic cylinder (3), a connecting rod (5) is fixedly connected to both sides of the upper mold body (4), one side of the two connecting rods (5) is fixedly connected to an ejection mechanism (6), the ejection mechanism (6) comprises a bottom plate (7), the top of the bottom plate (7) is fixedly connected to two active rods (8), the outer surfaces of the two active rods (8) are sleeved with two passive rods (9), and the tops of the two passive rods (9) are fixedly connected to an ejection plate (10).

2. A plastic production molding device according to claim 1, characterized in that: A first through hole is respectively provided on both sides of the workbench (1), and a ball sleeve (101) is fixedly connected to one side of each of the first through holes. The outer surfaces of the two connecting rods (5) are slidably connected to the inner surfaces of the ball sleeves (101), and the outer surfaces of the connecting rods (5) fit the balls in the ball sleeves (101).

3. A plastic production and molding device according to claim 2, characterized in that: The inner bottom wall of the lower mold body (2) is provided with two second through holes, the second through holes penetrate to the bottom of the workbench (1), and a positioning hole (201) is respectively provided at the four corners of the top of the lower mold body (2).

4. A plastic production and molding device according to claim 3, characterized in that: A positioning block (401) is fixedly connected to each of the four corners of the bottom of the upper mold body (4); the outer surfaces of the four positioning blocks (401) are respectively plugged into the inner surfaces of the positioning holes (201); and the bottoms of the positioning blocks (401) are provided with chamfers.

5. A plastic production and molding device according to claim 4, characterized in that: A convex plate (402) is fixedly connected to each side of the upper mold body (4), one side of the two connecting rods (5) is fixedly connected to each side of the convex plate (402), and the other side of the connecting rods (5) is fixedly connected to each side of the bottom plate (7).

6. A plastic production and molding device according to claim 5, characterized in that: The outer surface of the active rod (8) is matched with the inner surface of the passive rod (9), the outer surface of the active rod (8) is slidably connected to the inner surface of the passive rod (9), and the top end of the active rod (8) is fixedly connected to the limit block (801).

7. A plastic production and molding device according to claim 6, characterized in that: The outer surface of the passive rod (9) is matched with the inner surface of the second through hole, the passive rod (9) is slidably connected to the inner surfaces of the two second through holes, the size of the ejection plate (10) is matched with the inner size of the lower mold body (2), and the ejection plate (10) is driven by the passive rod (9) and slidably connected to the interior of the lower mold body (2).

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