A security sheet die fixing and ejecting mechanism

Abstract

The utility model relates to fixed mould ejection mechanism technical field, concretely is a kind of anti-theft sheet fixed mould ejection mechanism, including lower mould and upper mould, the inside of lower mould is slidably connected with several ejector rods, the surface of lower mould is equipped with smearing structure, the smearing structure includes the connecting strip of fixed connection in lower mould side wall, the inside of connecting strip is slidably connected with limit rod, the end side of limit rod is fixedly connected with limit box, the lower surface of limit box is fixedly connected with several bristles, the bottom side of limit box is equipped with several first through-holes, the inside of limit box is slidably connected with the sliding plate of L type structure, the surface of sliding plate is equipped with several second through-holes. The utility model is through setting smearing structure, it is convenient to the quick smearing work of release agent, and by adjusting the overlapping portion of first through-hole and second through-hole, the adjustment work of release agent smearing amount is facilitated, the smearing efficiency of release agent is improved to a certain extent.

Description

Technical Field

[0001] This utility model relates to the technical field of fixed mold ejection mechanism, and in particular to a fixed mold ejection mechanism for anti-theft sheet. Background Technology

[0002] The anti-theft patch ejection mechanism is a device specifically designed for use in injection molds to eject anti-theft patch plastic parts from the fixed mold side during molding. Some models also integrate a reset element to ensure that the mechanism can return to its initial position after ejection, without affecting the next mold closing process. Ultimately, this achieves stable and undamaged ejection of the anti-theft patch plastic parts from the fixed mold side, ensuring continuous injection molding production.

[0003] Existing technologies often have the following drawbacks: Before ejecting the anti-theft film, it is often necessary to apply a release agent to the inside of the mold to improve the ejection and demolding effect of the anti-theft film. However, traditional coating devices require using a brush dipped in release agent to repeatedly coat the inside of the lower mold, which is inefficient and cannot meet the coating requirements of the release agent on the inside of the lower mold.

[0004] Therefore, this utility model provides an anti-theft mold ejection mechanism. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the inconvenience of quickly applying release agent, and to propose an anti-theft mold ejection mechanism.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an anti-theft plate fixed mold ejection mechanism, including a lower mold and an upper mold, wherein a plurality of ejector rods are slidably connected inside the lower mold, and a coating structure is provided on the surface of the lower mold, wherein the coating structure includes a connecting strip fixedly connected to the side wall of the lower mold, a limiting rod is slidably connected inside the connecting strip, a limiting box is fixedly connected to the end side of the limiting rod, and a plurality of brush bristles are fixedly connected to the lower surface of the limiting box.

[0007] The effect achieved by the above components is that by setting up the coating structure, it is convenient to quickly apply the release agent, which improves the coating efficiency of the release agent to a certain extent.

[0008] Preferably, the bottom side of the limiting box has a plurality of first through holes.

[0009] The effect achieved by the above components is that the first through hole facilitates the drainage of the release agent.

[0010] Preferably, the limiting box has an L-shaped sliding plate inside, and the surface of the sliding plate has several second through holes.

[0011] The effect achieved by the above components is to control the amount of release agent flowing out by adjusting the overlapping area between the second through hole on the slide plate and the first through hole on the bottom side of the limiting box.

[0012] Preferably, both the first through hole and the second through hole are diamond-shaped holes.

[0013] The effect achieved by the above components is that the larger the overlapping area, the more release agent flows out, and vice versa. The release agent penetrates into the brush bristles through the through holes.

[0014] Preferably, the skateboard is internally threaded with a drive rod, and the drive rod is rotatably connected to the internal limit box.

[0015] The effect achieved by the above components is that rotating the drive rod causes the slide to slide within the limit box because the drive rod is threadedly connected to the slide plate and rotatably connected to the limit box.

[0016] Preferably, the upper port of the limiting box is covered by a cover plate.

[0017] The effect achieved by the above components is that the cover plate facilitates the flexible covering of the limit box.

[0018] Preferably, the connecting strip has a locking structure inside, the locking structure including a pin that is slidably connected inside the connecting strip, and the surface of the limiting rod has a plurality of insertion holes, the size of which is adapted to the size of the pin.

[0019] The effects achieved by the above components are as follows: by setting the locking structure, it is convenient to flexibly lock the moving limit rod, to facilitate the fixing work when not using the coating structure, and to facilitate the normal mold closing work of the upper and lower molds.

[0020] Preferably, a pull block is fixedly connected to the upper end of the pin.

[0021] The effect achieved by the above components is that the pull block facilitates the pulling of the latch.

[0022] Preferably, a spring is fitted onto the surface of the pin, and the two ends of the spring are fixedly connected to the pull block and the connecting strip, respectively.

[0023] The effect achieved by the above components is that the spring returns to its original position and pushes the pin into the corresponding hole of the limit rod.

[0024] Preferably, the pull block has an internal sliding connection with a support plate, and the support plate has an L-shaped structure.

[0025] The effect achieved by the above components is that after the pin is pulled up, the support plate inside the sliding block supports the connecting strip above, which can temporarily support the pin after it is lifted, and facilitate the flexible pulling of the limiting rod inside the connecting strip.

[0026] In summary: 1. In this utility model, by setting up a coating structure, it is convenient to quickly apply the release agent, and by adjusting the overlapping part of the first through hole and the second through hole, it is convenient to adjust the amount of release agent applied, thereby improving the application efficiency of the release agent to a certain extent.

[0027] 2. In this utility model, by setting a locking structure, it is convenient to flexibly lock the moving limit rod, to fix it when it is not used for coating, and to facilitate the normal mold closing work of the upper and lower molds. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 In this utility model Figure 2 Enlarged view of point B; Figure 4 This is a schematic diagram of the slide plate in this utility model; Figure 5 In this utility model Figure 1 Enlarged view of point A.

[0029] Legend: 1. Lower mold; 2. Upper mold; 3. Ejector rod; 4. Coating structure; 41. Connecting strip; 42. Limiting rod; 43. Limiting box; 44. Cover plate; 45. Slide plate; 46. Drive rod; 47. First through hole; 48. Second through hole; 49. Brush bristles; 5. Locking structure; 51. Pin; 52. Pull block; 53. Spring; 54. Support plate; 55. Insertion hole. Detailed Implementation

[0030] Reference Figure 1 As shown, this utility model provides a technical solution: an anti-theft film fixed mold ejection mechanism, including a lower mold 1 and an upper mold 2. Several ejector rods 3 are slidably connected inside the lower mold 1. The surface of the lower mold 1 is provided with a coating structure 4. The connecting strip 41 is provided with a locking structure 5 inside.

[0031] The following section will explain the specific design and function of its coating structure 4 and locking structure 5.

[0032] Reference Figures 1-4As shown in this embodiment, the coating structure 4 includes a connecting strip 41 fixedly connected to the side wall of the lower mold 1. A limiting rod 42 is slidably connected inside the connecting strip 41. A limiting box 43 is fixedly connected to the end of the limiting rod 42. Several brush bristles 49 are fixedly connected to the lower surface of the limiting box 43. By setting the coating structure 4, the rapid application of the release agent is facilitated, and the application efficiency of the release agent is improved to a certain extent.

[0033] The bottom side of the limiting box 43 has several first through holes 47. The first through holes 47 facilitate the drainage of the release agent. An L-shaped sliding plate 45 is slidably connected inside the limiting box 43, and the surface of the sliding plate 45 has several second through holes 48. The amount of release agent flowing out is controlled by adjusting the overlap area between the second through holes 48 on the sliding plate 45 and the first through holes 47 on the bottom side of the limiting box 43. Both the first through holes 47 and the second through holes 48 are diamond-shaped holes. The larger the overlap area, the more release agent flows out, and vice versa. The release agent penetrates into the brush bristles 49 through the through holes. A drive rod 46 is threadedly connected inside the sliding plate 45, and the drive rod 46 is rotatably connected to the inside of the limiting box 43. Rotating the drive rod 46 causes the sliding plate 45 to slide inside the limiting box 43 because the drive rod 46 is threadedly connected to the sliding plate 45 and rotatably connected to the limiting box 43. The upper end of the limiting box 43 is covered by a cover plate 44. The cover plate 44 facilitates the flexible covering of the limit box 43.

[0034] Reference Figures 1-2 and Figure 5 As shown, specifically, the locking structure 5 includes a pin 51 slidably connected inside the connecting strip 41. The surface of the limiting rod 42 has several insertion holes 55, the size of which matches the size of the pin 51. By setting the locking structure 5, the flexible locking operation of the moving limiting rod 42 is facilitated, as is the fixing operation when the coating structure 4 is not in use, and the normal mold closing operation of the upper mold 2 and lower mold 1 is facilitated. A pull block 52 is fixedly connected to the upper end of the pin 51. The pull block 52 facilitates the pulling operation of the pin 51. A spring 53 is sleeved on the surface of the pin 51, and both ends of the spring 53 are fixedly connected to the pull block 52 and the connecting strip 41, respectively. When the spring 53 returns to its original position, it pushes the pin 51 into the corresponding insertion hole 55 of the limiting rod 42. A support plate 54 with an L-shaped structure is slidably connected inside the pull block 52. After the pin 51 is pulled up, the support plate 54 inside the sliding block 52 supports the connecting bar 41, which can temporarily support the pin 51 after it is lifted, and facilitate the flexible pulling of the limiting rod 42 inside the connecting bar 41.

[0035] Working principle: In the preparation stage before injection molding, the release agent needs to be applied through the coating structure 4. First, pull the pull block 52 in the locking structure 5 upward, causing the pin 51 to move upward against the elastic force of the spring 53, so that the pin 51 disengages from the insertion hole 55 on the surface of the limiting rod 42. Then, slide the L-shaped support plate 54 inside the pull block 52, so that the support plate 54 supports the connecting strip 41, temporarily fixing the pin 51. At this time, the limiting rod 42 can be slid along the connecting strip 41 to move the limiting box 43. The bottom brush 49 is applied to the inner side of the lower mold 1 to be coated. Then, the reverse sliding support plate 54 releases the support for the pin 51. The spring 53 returns to its original position and pushes the pin 51 into the corresponding insertion hole 55 of the limiting rod 42, thus locking the position of the limiting rod 42 and the limiting box 43. Next, the cover plate 44 on the limiting box 43 is opened, and an appropriate amount of release agent is injected into the box. The drive rod 46 is rotated. Because the drive rod 46 is threadedly connected to the slide plate 45 and rotatably connected to the limiting box 43, the slide plate 45 is driven to move within the limiting box. The mold release agent flows out by adjusting the overlap area between the second through hole 48 on the slide plate 45 and the first through hole 47 on the bottom side of the limiting box 43. The larger the overlap area, the more mold release agent flows out, and vice versa. The mold release agent penetrates through the through hole to the brush bristles 49, pushing the limiting box 43 along the inner side of the lower mold 1. The brush bristles 49 can then evenly coat the mold release agent onto the inner wall of the mold without repeated dipping, improving coating efficiency. After coating, the upper mold 2 and the lower mold 1 are closed to perform injection molding of the anti-theft plastic parts. In the molding process, after the plastic part is formed, the upper mold 2 and the lower mold 1 separate. At this time, the ejector pin 3 in the lower mold 1 pushes upward, and at the same time, the relevant ejection components on the fixed mold side work together to stably eject the anti-theft plastic part that was originally attached to the fixed mold side, so that it is separated from the fixed mold and the lower mold 1, and the demolding is completed. After demolding, the ejector pin 3 and the fixed mold ejection mechanism return to their initial positions under the action of the reset element, so as to enter the next injection molding cycle. If it is necessary to apply the release agent again, the above operation process of applying structure 4 can be repeated.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A mechanism for ejecting a fixed mold for anti-theft films, comprising a lower mold (1) and an upper mold (2), characterized in that: The lower mold (1) has several push rods (3) slidably connected inside. The surface of the lower mold (1) is provided with a coating structure (4). The coating structure (4) includes a connecting strip (41) fixedly connected to the side wall of the lower mold (1). The connecting strip (41) has a limiting rod (42) slidably connected inside. The end of the limiting rod (42) is fixedly connected to a limiting box (43). The lower surface of the limiting box (43) is fixedly connected with several bristles (49).

2. The anti-theft plate fixed mold ejection mechanism according to claim 1, characterized in that: The bottom side of the limiting box (43) has several first through holes (47).

3. The anti-theft plate fixed mold ejection mechanism according to claim 1, characterized in that: The limiting box (43) has an L-shaped sliding plate (45) inside, and the surface of the sliding plate (45) has several second through holes (48).

4. The anti-theft plate fixed mold ejection mechanism according to claim 3, characterized in that: Both the first through hole (47) and the second through hole (48) are diamond-shaped holes.

5. The anti-theft plate fixed mold ejection mechanism according to claim 3, characterized in that: The internal thread of the slide plate (45) is connected to a drive rod (46), and the drive rod (46) is rotatably connected to the internal limit box (43).

6. The anti-theft plate fixed mold ejection mechanism according to claim 1, characterized in that: The upper port of the limiting box (43) is covered by a cover plate (44).

7. The anti-theft plate fixed mold ejection mechanism according to claim 1, characterized in that: The connecting bar (41) has a locking structure (5) inside. The locking structure (5) includes a pin (51) that is slidably connected inside the connecting bar (41). The surface of the limiting rod (42) has several holes (55). The size of the holes (55) is adapted to the size of the pin (51).

8. The anti-theft plate fixed mold ejection mechanism according to claim 7, characterized in that: The upper end of the pin (51) is fixedly connected to a pull block (52).

9. The anti-theft plate fixed mold ejection mechanism according to claim 8, characterized in that: The surface of the pin (51) is fitted with a spring (53), and the two ends of the spring (53) are fixedly connected to the pull block (52) and the connecting strip (41) respectively.

10. The anti-theft plate fixed mold ejection mechanism according to claim 8, characterized in that: The internal sliding connection of the pull block (52) is a support plate (54), which has an L-shaped structure.

Images