Compact inclined cross inner pulling mechanism

Abstract

The utility model discloses a compact type inclined cross inner pulling mechanism which comprises a product, a first sliding block and a second sliding block, and a chamfer is arranged on the inner side of the product. The side, away from the first sliding block, of the second sliding block is connected with a fixing block. The first sliding block is connected with a connecting rod. The connecting rod sequentially penetrates through the second sliding block and the fixing block and is connected with an adjusting rod. The diameter of the end, away from the fixing block, of the adjusting rod is smaller than that of the end close to the fixing block. The fixed block is movably connected with an inner pulling block; the outer sides of the four inner pulling blocks are connected with protruding blocks matched with the chamfers. The four inner pulling blocks are in central symmetry and are arranged in an inclined cross shape. The inner pulling block matched with the product is arranged on the fixed block in a sliding manner and is arranged in an inclined cross shape, so that the relative distance of the inner pulling block is increased to adapt to a compact space on the inner side of a smaller product.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, and in particular to a compact oblique cross inner pull mechanism. Background Technology

[0002] Injection molding is used in the production of many plastic products. Different shapes of products are made by using pre-made molds. However, due to the complex structure of the products, demolding is difficult after injection molding. When there are chamfers or protrusions on the inside of the product, an internal pulling structure is required for demolding. However, when the product size is small, the internal space is insufficient, that is, the movement distance of the internal pulling block is limited. The existing internal pulling block structure cannot meet the requirements, resulting in demolding difficulties. Utility Model Content

[0003] The purpose of this invention is to solve the problems in the prior art by proposing a compact oblique cross inner drawing mechanism.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A compact oblique cross-shaped inner drawer mechanism includes a product with a chamfered inner side, and two sliders: a first slider and a second slider. A fixed block is connected to the side of the second slider away from the first slider. A connecting rod is connected to the first slider. The connecting rod passes through the second slider and the fixed block in sequence and is connected to an adjusting rod. The diameter of the adjusting rod at the end away from the fixed block is smaller than the diameter at the end closer to the fixed block. An inner drawer block is movably connected to the fixed block. There are four inner drawer blocks, each with a protrusion on its outer side that matches the chamfer. The four inner drawer blocks are centrally symmetrical and arranged in an oblique cross shape.

[0006] Preferably, the inner side of the inner draw block is fitted to the adjusting rod; a T-shaped locking block is connected to the adjusting rod; the inner side of the inner draw block is provided with a locking groove that matches the locking block; the adjusting rod is slidably engaged with the inner draw block through the locking block.

[0007] Preferably, the inclination of the inner sidewall of the slot matches that of the outer side of the adjusting rod; and the height difference between the two ends of the slot is not less than the height of the protrusion; the four inner pull blocks move inward and outward by moving the adjusting rod left and right.

[0008] Preferably, one end of each of the four inner draw blocks near the fixed block is connected to a slider; the fixed block is provided with a moving groove that matches the slider; the inner draw blocks are slidably engaged with the fixed block via the slider.

[0009] Preferably, slider one and slider two are fitted together; and slider one is connected to a slider seat one at the lower end of slider one; slider one is driven to move by slider seat one; slider two is connected to a slider seat two at the lower end of slider two; slider two is driven to move by slider seat two.

[0010] Compared with the prior art, this utility model provides a compact oblique cross inner drawing mechanism, which has the following beneficial effects:

[0011] This compact oblique cross inner pulling mechanism uses an inner pulling block that matches the product to slide on a fixed block and is arranged in an oblique cross shape to increase the relative distance between the inner pulling blocks, so as to adapt to the compact space inside smaller products. A slot and a locking block are set between the inner pulling block and the adjusting rod. By pulling out the adjusting rod, the locking block is moved in the slot. At the same time, due to the oblique setting of the slot, the inner pulling block can be moved inward, so as to demold. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the external structure of this utility model;

[0014] Figure 3 This is a partial structural schematic diagram of the present invention;

[0015] Figure 4 This is a partial structural schematic diagram of the present invention;

[0016] Figure 5 This is a schematic diagram of the internal extraction block of this utility model;

[0017] Figure 6 This is a side view of the present invention.

[0018] In the diagram: 10. Product; 11. Chamfer; 12. Slider 1; 13. Slider 2; 14. Slider seat 1; 15. Slider seat 2; 21. Fixing block; 22. Connecting rod; 23. Adjusting rod; 24. Inner drawer block; 25. Protrusion; 26. Slot; 27. Locking block; 28. Moving slot; 29. ​​Slider. Detailed Implementation

[0019] The following will refer to Figure 1-6This invention describes the specific implementation of a compact oblique cross inner drawer mechanism, including a product 10. The product 10 has a chamfer 11 on its inner side, and also includes a first slider 12 and a second slider 13. A fixing block 21 is connected to the side of the second slider 13 away from the first slider 12. A connecting rod 22 is connected to the first slider 12. The connecting rod 22 passes through the second slider 13 and the fixing block 21 in sequence and is connected to an adjusting rod 23. The diameter of the adjusting rod 23 at the end away from the fixing block 21 is smaller than the diameter at the end near the fixing block 21, i.e., it is in the shape of a horizontally placed frustum. An inner drawer block 24 is movably connected to the fixing block 21. There are four inner drawer blocks 24, and each inner drawer block 24 has a protrusion 25 on its outer side that matches the chamfer 11. The four inner drawer blocks 24 are centrally symmetrical and placed in an oblique cross shape.

[0020] To facilitate the inward movement and disengagement of the inner drawer blocks 24, an adjusting rod 23 is fitted to the inner side of the inner drawer blocks 24. A T-shaped locking block 27 is connected to the adjusting rod 23. A locking groove 26 matching the locking block 27 is provided on the inner side of the inner drawer blocks 24. The adjusting rod 23 is slidably engaged with the inner drawer blocks 24 via the locking block 27. The inclination of the inner wall of the locking groove 26 matches that of the outer side of the adjusting rod 23. The height difference between the two ends of the locking groove 26 is not less than the height of the protrusion 25. The four inner drawer blocks 24 move inward and outward by moving the adjusting rod 23 left and right. When the adjusting rod 23 is pulled out, it will drive the locking block 27 to move within the locking groove 26. However, due to the height difference on both sides, the locking block 27 will pull the inner drawer blocks 24 inward as it moves horizontally, thereby disengaging the protrusion 25 and the chamfer 11 of the inner drawer blocks 24, making it easier to remove the product.

[0021] Furthermore, to prevent the inner drawer blocks 24 from falling off and shifting from the fixed blocks 21, sliders 29 are connected to one end of each of the four inner drawer blocks 24 near the fixed blocks 21; the fixed blocks 21 are provided with moving grooves 28 that match the sliders 29, and the moving grooves 28 should be in the same direction as the movement of the inner drawer blocks 24 and be in the shape of an oblique cross; the inner drawer blocks 24 are slidably engaged with the fixed blocks 21 through the sliders 29.

[0022] The slider 12 and slider 23 are fitted together; and the lower end of the slider 12 is connected to the slider seat 14; the slider 12 is driven to move by the slider seat 14; the lower end of the slider 23 is connected to the slider seat 25; the slider 23 is driven to move by the slider seat 25. In use, the connecting rod 22 and adjusting rod 23 on the slider 12 should be moved first by the slider seat 14 to make the inner pull block 24 detach from the product, and then the slider seat 25 should be moved so that the two sliders move at the same time for demolding.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A compact oblique cross-shaped inner drawer mechanism, comprising a product (10), wherein the inner side of the product (10) is provided with a chamfer (11), characterized in that, It also includes slider one (12) and slider two (13); a fixed block (21) is connected to the side of slider two (13) away from slider one (12); a connecting rod (22) is connected to slider one (12); the connecting rod (22) passes through slider two (13) and fixed block (21) in sequence and is connected to an adjusting rod (23); and the diameter of the end of the adjusting rod (23) away from the fixed block (21) is smaller than the diameter of the end close to the fixed block (21); an inner drawer block (24) is movably connected to the fixed block (21); there are four inner drawers (24), and each of them is connected to a protrusion (25) that matches the chamfer (11) on its outer side; the four inner drawers (24) are symmetrically placed in an inclined cross shape.

2. The compact oblique cross inner drawing mechanism according to claim 1, characterized in that, The inner draw block (24) is fitted to the adjusting rod (23) on its inner side; a T-shaped locking block (27) is connected to the adjusting rod (23); the inner draw block (24) has a locking groove (26) that matches the locking block (27) on its inner side; the adjusting rod (23) is slidably engaged with the inner draw block (24) through the locking block (27).

3. The compact oblique cross inner drawing mechanism according to claim 2, characterized in that, The inclination of the inner wall of the slot (26) matches that of the outer side of the adjusting rod (23); and the height difference between the two ends of the slot (26) is not less than the height of the protrusion (25); the four inner pull blocks (24) move inward and outward by moving the adjusting rod (23) left and right.

4. The compact oblique cross inner drawing mechanism according to claim 1, characterized in that, The four inner draw blocks (24) are connected to a slider (29) at one end near the fixed block (21); the fixed block (21) is provided with a moving groove (28) that matches the slider (29); the inner draw blocks (24) are slidably engaged with the fixed block (21) through the slider (29).

5. A compact oblique cross inner-drawing mechanism according to claim 1, characterized in that, The slider one (12) and slider two (13) are fitted together; and the lower end of the slider one (12) is connected to the slider seat one (14); the slider one (12) is driven to move by the slider seat one (14); the lower end of the slider two (13) is connected to the slider seat two (15); the slider two (13) is driven to move by the slider seat two (15).

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