Internal sliding mechanism of injection mold

Abstract

The utility model relates to the technical field of molds, and discloses an injection mold internal sliding mechanism which comprises an upper mold, an inner mold is installed on the upper portion of the upper mold, a connecting base is fixedly connected to the upper portion of the inner mold, and a first sliding block and a second sliding block which are evenly distributed are connected into the connecting base in a sliding mode. Threads are fixedly connected to the upper sides of the outer portions of the first sliding block and the second sliding block, moving blocks are fixedly connected to the bottoms of the first sliding block and the second sliding block, telescopic rods are fixedly connected to one sides of the moving blocks, the telescopic rods are sleeved with second springs, and sliding grooves matched with the moving blocks in position are formed in the upper side of the interior of the inner mold. According to the utility model, the die can be separated from a product automatically while being separated, the die does not need to be separated manually while being separated, the production efficiency is improved, the die can be disassembled quickly when products of different models or sizes need to be produced, and the die can be ensured not to fall off when fixed parts at four corners of the die are loosened during production.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a sliding mechanism inside an injection mold. Background Technique

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automation of operation, a variety of flower patterns and varieties, the shape can range from simple to complex, the size can range from large to small, and the product size is accurate, the product is easy to update, and it can form parts with complex shapes. Injection molding is suitable for forming processing fields such as mass production and products with complex shapes.

[0003] When the existing mold is opened, the upper cover plate of the injection mold is lifted by a telescopic cylinder to open the injection cavity of the injection mold. However, during the process of opening the injection mold, it needs to be lifted slowly to prevent the product from being stuck with the upper mold, resulting in damage due to dropping during the lifting process, making the production efficiency low and not meeting the requirements of rapid production. Therefore, a sliding mechanism inside an injection mold is proposed to solve the above problems. Summary of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a sliding mechanism inside an injection mold, aiming to improve the problem that in the prior art, it needs to be lifted slowly during the process of opening the injection mold to prevent the product from being stuck with the upper mold, resulting in damage due to dropping during the lifting process, making the production efficiency low and not meeting the requirements of rapid production.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: A sliding mechanism inside an injection mold, including an upper mold, an inner mold is installed on the upper part of the upper mold, a connecting seat is fixedly connected to the upper part of the inner mold, three uniformly distributed slider one and slider two are slidably connected inside the connecting seat, threads are fixedly connected to the upper sides of the outside of the slider one and slider two, moving blocks are fixedly connected to the bottoms of the slider one and slider two, a telescopic rod is fixedly connected to one side of the moving block, a second spring is sleeved outside the telescopic rod, a chute corresponding to the position of the moving block is opened on the upper side inside the inner mold, one end of the telescopic rod is fixedly connected to the inner wall of the chute, the moving block is slidably connected inside the chute, an extrusion component is slidably connected inside the upper mold to the slider one and slider two, and the extrusion component is used to push the slider one and slider two so that injection molding can be completed.

[0006] As a further description of the above technical solution:

[0007] At the four corners of the bottom of the inner mold, there are insertion rods fixedly connected. At the bottom of the insertion rods, there are connection blocks fixedly connected. On the left and right sides of the outer wall of the connection blocks, there are outer cylinders fixedly connected. Inside the connection blocks, there are double-headed telescopic members fixedly connected. At the left and right ends of the double-headed telescopic members, there are extrusion blocks fixedly connected. Outside the double-headed telescopic members, there is a first spring sleeved. Inside the outer cylinders, there are clamping blocks slidably connected.

[0008] As a further description of the above technical solution:

[0009] The extrusion assembly includes an inner column, which is slidably connected inside the upper mold to the first slider and the second slider. On the upper parts of the first slider and the second slider, there are insertion blocks fixedly connected, and the insertion blocks are snap-connected inside the inner column.

[0010] As a further description of the above technical solution:

[0011] One end of the second spring is fixedly connected to one side of the inner wall of the chute, and the other end of the second spring is fixedly connected to one side of the moving block.

[0012] As a further description of the above technical solution:

[0013] On the upper and lower sides of the clamping block, there are limit blocks fixedly connected. On the upper and lower sides inside the outer cylinder, there are limit grooves opened, and the limit blocks are slidably connected inside the limit grooves.

[0014] As a further description of the above technical solution:

[0015] On the left and right sides inside the connection block, there are moving grooves opened. One end of the first spring is fixedly connected to one side inner wall of the moving groove, and the other end of the first spring is fixedly connected to one side of the extrusion block.

[0016] As a further description of the above technical solution:

[0017] At the four corners of the bottom of the upper mold, there are through grooves corresponding to the positions of the insertion rods, and the connection block and the clamping block are slidably connected inside the through grooves.

[0018] As a further description of the above technical solution:

[0019] The extrusion block is slidably connected inside the outer cylinder.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, by pulling the inner column while raising the upper mold so that it no longer extrudes the first slider and the second slider, the first slider and the second slider move to separate from the injection-molded product, realizing that the mold can be separated from the product automatically while separating the mold, without manually separating it while the mold is separated, improving the production efficiency.

[0022] 2. In the present utility model, after removing the fixing members at the four corners, the inner mold is pulled to drive the connecting block and the outer cylinder by the insertion rod, so that the clamping block retracts into the outer cylinder, realizing that when products of different models or sizes need to be produced, it can be quickly removed, and when the fixing members at the four corners of the mold loosen during production, it can be ensured that it will not fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a perspective view of an internal sliding mechanism of an injection mold proposed by the present utility model;

[0024] Figure 2 is a cross-sectional view of the upper mold of an internal sliding mechanism of an injection mold proposed by the present utility model;

[0025] Figure 3 is Figure 2 an enlarged view of part A in

[0026] Figure 4 is an exploded view of an internal sliding mechanism of an injection mold proposed by the present utility model;

[0027] Figure 5 is Figure 4 an enlarged view of part B in

[0028] LEGEND DESCRIPTION:

[0029] 1. Upper mold; 2. Inner mold; 3. Connecting seat; 4. First slider; 5. Second slider; 6. Thread; 7. Insert block; 8. Inner column; 9. Insertion rod; 10. Connecting block; 11. Through groove; 12. Outer cylinder; 13. Clamping block; 14. Moving groove; 15. Double-headed telescopic member; 16. First spring; 17. Extrusion block; 18. Limiting block; 19. Limiting groove; 20. Sliding groove; 21. Expansion rod; 22. Second spring; 23. Moving block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] Refer to Figure 1 、 Figure 4 、 Figure 5, an embodiment provided by the present utility model: a sliding mechanism inside an injection mold, including an upper mold 1, an inner mold 2 is installed on the upper part of the upper mold 1, a connecting seat 3 is fixedly connected to the upper part of the inner mold 2, and three uniformly distributed slider ones 4 and slider twos 5 are slidably connected inside the connecting seat 3. Threads 6 are fixedly connected to the upper sides of the outer parts of the slider ones 4 and slider twos 5 to ensure that there are threaded grooves inside the product. Moving blocks 23 are fixedly connected to the bottoms of the slider ones 4 and slider twos 5. One side of the moving block 23 is fixedly connected to a telescopic rod 21, and a second spring 22 is sleeved outside the telescopic rod 21 to enable quick separation and demolding from the product. A chute 20 corresponding to the position of the moving block 23 is opened on the upper side inside the inner mold 2. One end of the telescopic rod 21 is fixedly connected to the inner wall of the chute 20, and the moving block 23 is slidably connected inside the chute 20. An extrusion assembly is slidably connected from the upper mold 1 to the inside of the slider ones 4 and slider twos. The extrusion assembly is used to push the slider ones 4 and slider twos to complete injection molding;

[0032] The extrusion assembly includes an inner column 8. The inner column 8 is slidably connected from the upper mold 1 to the inside of the slider ones 4 and slider twos. Plug blocks 7 are fixedly connected to the upper parts of the slider ones 4 and slider twos. The plug blocks 7 are snap-connected to the inside of the inner column 8 to ensure that there will be no movement during the production process, which affects the quality of the product. One end of the second spring 22 is fixedly connected to one side of the inner wall of the chute 20, and the other end of the second spring 22 is fixedly connected to one side of the moving block 23 to generate a resilience force.

[0033] By pulling the inner column 8 while raising the upper mold 1, so that it no longer extrudes the slider ones 4 and slider twos. Under the resilience force of the telescopic rod 21 and the second spring 22, the moving block 23 is pushed to slide inside the chute 20, and the slider ones 4 and slider twos are driven to slide inside the connecting seat 3. Due to the angle problem of the upper part of the slider one 4, it separates from the connecting seat 3 earlier than the slider two 5, and there will be no problem of mutual resistance and inability to move, so that it separates from the injection-molded product, enabling automatic separation from the product while separating the mold, without the need to manually separate it while separating the mold, improving production efficiency.

[0034] Refer to Figure 2 、 Figure 3 、 Figure 4, at the four corners of the bottom of the inner mold 2, there are insertion rods 9 fixedly connected. At the bottom of the insertion rod 9, there is a connection block 10 fixedly connected. On the left and right sides of the outer wall of the connection block 10, there are outer cylinders 12 fixedly connected. Inside the connection block 10, there is a double-headed telescopic member 15 fixedly connected. At the left and right ends of the double-headed telescopic member 15, there are extrusion blocks 17 fixedly connected. Outside the double-headed telescopic member 15, there is a first spring 16 sleeved. Inside the outer cylinder 12, there is a clamping block 13 slidably connected, so that the clamping block 13 can be pushed to further stably install the inner mold 2 and the upper mold 1. At the four corners of the bottom of the upper mold 1, there are through grooves 11 corresponding to the positions of the insertion rods 9. The connection block 10 and the clamping block 13 are slidably connected inside the through grooves 11;

[0035] On the upper and lower sides of the clamping block 13, there are limit blocks 18 fixedly connected. On the upper and lower sides inside the outer cylinder 12, there are limit grooves 19 opened. The limit blocks 18 are slidably connected inside the limit grooves 19 to ensure the smooth movement of the clamping block 13. On the left and right sides inside the connection block 10, there are moving grooves 14 opened. One end of the first spring 16 is fixedly connected to the inner wall of one side of the moving groove 14, and the other end of the first spring 16 is fixedly connected to one side of the extrusion block 17, so that it can generate a resilient force to push the clamping block 13. The extrusion block 17 is slidably connected inside the outer cylinder 12.

[0036] After removing the fixing parts at the four corners of the upper mold 1, by pulling the inner mold 2, the insertion rod 9 drives the connection block 10, which drives the clamping block 13 through the outer cylinder 12. While the clamping block 13 moves, it is squeezed by the two side edges of the through groove 11, so that the clamping block 13 drives the limit block 18 to slide inside the limit groove 19, which pushes the extrusion block 17 to retract the double-headed telescopic member 15. The extrusion block 17 moves out of the outer cylinder 12 and enters the inside of the connection block 10, so that the clamping block 13 moves into the inside of the outer cylinder 12, and the inner mold 2 can be separated from the upper mold 1 smoothly. When different models or sizes of products need to be produced, it can be quickly removed, and when the fixing parts at the four corners of the mold loosen during production, it can be ensured that it will not fall off.

[0037] Working principle: When the device needs to be used, by pulling the inner column 8 while raising the upper mold 1, it no longer squeezes the slider one 4 and the slider two 5. Under the action of the telescopic rod 21 and the second spring 22, the moving block 23 is pushed to drive the slider one 4 and the slider two 5, so that they are separated from the injection-molded product, realizing the separation of the mold and the automatic separation from the product at the same time, without manually separating it while the mold is separated, improving the production efficiency;

[0038] After removing the fixing parts at the four corners of the upper die 1, pulling the inner die 2 causes the insertion rod 9 to drive the connecting block 10 and the outer cylinder 12, so that the clamping block 13 is squeezed, and the extrusion block 17 is pushed to retract the double-headed telescopic member 15, causing the clamping block 13 to move inside the outer cylinder 12, enabling the inner die 2 to be separated from the upper die 1 smoothly. When it is necessary to produce products of different models or sizes, it can be quickly removed, and when the fixing parts at the four corners of the mold loosen during production, it can be ensured that it will not fall off.

[0039] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An internal sliding mechanism of an injection mold, comprising an upper mold (1), characterized in that: An inner mold (2) is installed on the upper part of the upper mold (1). A connecting seat (3) is fixedly connected to the upper part of the inner mold (2). Three evenly distributed slider one (4) and slider two (5) are slidably connected inside the connecting seat (3). Threads (6) are fixedly connected to the upper sides of the outer parts of the slider one (4) and slider two (5). Moving blocks (23) are fixedly connected to the bottoms of the slider one (4) and slider two (5). A telescopic rod (21) is fixedly connected to one side of the moving block (23). A second spring (22) is sleeved outside the telescopic rod (21). A chute (20) corresponding to the position of the moving block (23) is opened on the upper side inside the inner mold (2). One end of the telescopic rod (21) is fixedly connected to the inner wall of the chute (20). The moving block (23) is slidably connected inside the chute (20). An extrusion assembly is slidably connected inside the upper mold (1) to the slider one (4) and slider two (5). The extrusion assembly is used to push the slider one (4) and slider two (5) so that injection molding can be completed.

2. The internal sliding mechanism of an injection mold according to claim 1, characterized in that: Plug rods (9) are fixedly connected to the four corners of the bottom of the inner mold (2). A connecting block (10) is fixedly connected to the bottom of the plug rod (9). Outer cylinders (12) are fixedly connected to the left and right sides of the outer wall of the connecting block (10). A double-headed telescopic member (15) is fixedly connected inside the connecting block (10). Extrusion blocks (17) are fixedly connected to the left and right ends of the double-headed telescopic member (15). A first spring (16) is sleeved outside the double-headed telescopic member (15). A clamping block (13) is slidably connected inside the outer cylinder (12).

3. The internal sliding mechanism of an injection mold according to claim 1, characterized in that: The extrusion assembly includes an inner column (8). The inner column (8) is slidably connected inside the upper mold (1) to the slider one (4) and slider two (5). Plug blocks (7) are fixedly connected to the upper parts of the slider one (4) and slider two (5). The plug blocks (7) are snap-connected inside the inner column (8).

4. The internal sliding mechanism of an injection mold according to claim 1, characterized in that: One end of the second spring (22) is fixedly connected to one side of the inner wall of the chute (20). The other end of the second spring (22) is fixedly connected to one side of the moving block (23).

5. The internal sliding mechanism of an injection mold according to claim 2, characterized in that: Limit blocks (18) are fixedly connected to the upper and lower sides of the clamping block (13). Limit grooves (19) are opened on the upper and lower sides inside the outer cylinder (12). The limit blocks (18) are slidably connected inside the limit grooves (19).

6. The internal sliding mechanism of an injection mold according to claim 2, characterized in that: Moving grooves (14) are opened on the left and right sides inside the connecting block (10). One end of the first spring (16) is fixedly connected to one side inner wall of the moving groove (14). The other end of the first spring (16) is fixedly connected to one side of the extrusion block (17).

7. The internal sliding mechanism of an injection mold according to claim 2, characterized in that: Through grooves (11) corresponding to the positions of the plug rods (9) are opened at the four corners of the bottom of the upper mold (1). The connecting block (10) and the clamping block (13) are slidably connected inside the through grooves (11).

8. The internal sliding mechanism of an injection mold according to claim 2, wherein: The extrusion block (17) is slidably connected inside the outer cylinder (12).

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