A coated reinforced drum paper mold structure

Abstract

The utility model discloses a kind of cladding type reinforcing drum paper mold structure, including lower mould plate, the upper surface of lower mould plate is fixedly installed with lower die holder, the outer surface center position of lower die holder is equipped with forming female cavity, the inside both sides of forming female cavity are equipped with top material hole, the bottom end of top material hole and located inside lower die holder is equipped with spring cavity, top material needle is movably inserted in top material hole, the bottom end of top material needle and located inside spring cavity is fixedly installed with spring leaf, the lower surface of spring leaf is fixedly installed with top material spring, the outer wall on the side of spring cavity is equipped with limit slot, limit insert is movably inserted in limit slot, the utility model has the practical use effect of automatic top material stripping, without manual edge lifting stripping treatment when actually using, to greatly improve the separation stripping safety of drum paper, avoid drum paper edge lifting damage, with relatively convenient product stripping use effect, overall practicality is stronger.

Description

Technical Field

[0001] This utility model relates to the field of paper drum mold technology, specifically to a wrap-around reinforced paper drum mold structure. Background Technology

[0002] A loudspeaker is a device that converts audio signals into sound. Simply put, it refers to a speaker enclosure or subwoofer enclosure with a built-in power amplifier that amplifies the audio signal before it is reproduced by the speaker itself, making the sound louder. The speaker enclosure is the terminal of the entire speaker system; its function is to convert audio electrical energy into corresponding sound energy and radiate it into space. It is an extremely important component of the speaker system, responsible for converting electrical signals into sound signals for direct listening by the human ear. The prior art CN202122164583.X discloses a covered reinforced drum paper mold structure, including an upper mold, an upper mold insert, a positioning block for positioning the drum paper, and a lower mold arranged sequentially from top to bottom. The bottom of the upper mold has a downwardly protruding punch, and the top of the lower mold has a concave mold that cooperates with the punch. The punch and the concave mold cooperate with each other to form a drum paper edge that is fixedly connected to the periphery of the drum paper. The periphery of the drum paper is provided with a downwardly oriented filling groove, which is connected to the concave mold. The filling is injected into the filling groove during molding to form an anti-detachment edge that is integrally formed with the drum paper edge. The existing technology has a limiting and fixing structure, which eliminates the need for additional reinforcing glue fixing process, reduces production costs, maintains the product appearance, and has a good fixing and limiting effect. Based on the search of existing technologies and the findings of existing equipment, it was found that the traditional existing technology is not convenient for automatic ejection and demolding after the drum paper is formed. When demolding the drum paper, it is necessary to manually hold a lifting knife to lift the edge of the drum paper for demolding. This process can easily lead to damage to the drum paper and reduce the demolding quality of the mold. Summary of the Invention

[0003] The purpose of this invention is to provide a wrap-around reinforced paper drum mold structure to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a covered reinforced paper drum mold structure, including a lower template, a lower mold base fixedly installed on the upper surface of the lower template, a forming cavity opened at the center of the outer surface of the lower mold base, ejector holes opened on both sides of the inner side of the forming cavity, a spring cavity opened at the bottom end of the ejector hole and inside the lower mold base, an ejector pin movably inserted in the ejector hole, a spring plate fixedly installed at the bottom end of the ejector pin and inside the spring cavity, an ejector spring fixedly installed on the lower surface of the spring plate, a limit slot opened on one side of the outer wall of the spring cavity, and a limit insert movably inserted in the limit slot.

[0005] Preferably, the top end of the limiting insert is provided with a concave arc-shaped structure.

[0006] Preferably, the limiting slot and the spring cavity are designed to be interconnected, and the top material hole and the spring cavity are interconnected.

[0007] Preferably, an upper template is provided above the lower mold base, and a forming punch adapted to the forming cavity is installed at the center of the lower surface of the upper template.

[0008] Preferably, the tail end of the top spring is fixedly connected to the bottom inner wall of the spring cavity.

[0009] Compared with the prior art, the beneficial effects of this utility model are: When using this invention, after the paper drum in the forming cavity is formed, the limiting inserts on both sides can be manually pulled out. After the limiting inserts are pulled out, the compressed ejector spring is no longer limited by the limiting inserts, and the ejector spring will elastically reset. Through the elastic reset of the ejector spring, the ejector pin can be ejected upward. The ejected ejector pin can eject the paper drum at the edge of the forming cavity, thereby separating the paper drum from the forming cavity and completing the spring-type automatic ejection and demolding process.

[0010] This utility model's paper drum mold structure, during use, utilizes a spring-type ejection structure with ejector springs and ejector pins to automatically eject the paper after it has been formed. This facilitates the ejection and demolding of the paper drum. Compared to traditional paper drum molds, it offers the practical benefit of automatic ejection and demolding. In actual use, there is no need for manual demolding to remove curled edges, which greatly improves the safety of paper drum separation and demolding, preventing damage to the paper drum edges. It provides a more convenient product demolding effect, is more practical overall, and has a simple overall structure, is easy to manufacture, and is suitable for implementation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the mold according to an embodiment of the present utility model; Figure 2 This is a bottom view of the mold assembly according to an embodiment of the present invention. Figure 3 This is a schematic diagram of the internal cross-sectional structure of the lower mold base according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the overall structure of the limiting insert in an embodiment of the present utility model.

[0012] In the diagram: 1. Lower template; 2. Lower mold base; 3. Forming cavity; 4. Ejector hole; 5. Spring cavity; 6. Ejector pin; 7. Spring plate; 8. Limiting slot; 9. Limiting insert; 10. Upper template; 11. Forming punch; 12. Ejector spring. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0016] Please see Figure 1-4 The present invention provides an embodiment of a wrap-around reinforced paper drum mold structure, including a lower template 1, a lower mold base 2 fixedly installed on the upper surface of the lower template 1, a forming cavity 3 opened at the center of the outer surface of the lower mold base 2, ejector holes 4 opened on both sides of the interior of the forming cavity 3, a spring cavity 5 opened at the bottom of the ejector hole 4 and located inside the lower mold base 2, and a limit slot 8 and a spring cavity 5 are designed to be interconnected. Furthermore, a push pin 6 is movably inserted into the push pin hole 4. A spring plate 7 is fixedly installed at the bottom end of the push pin 6 and inside the spring cavity 5. A push spring 12 is fixedly installed on the lower surface of the spring plate 7. The tail end of the push spring 12 is fixedly connected to the inner wall of the bottom end of the spring cavity 5. Thus, the push pin 6 can move downward to compress the push spring 12 at the bottom.

[0017] In order to limit the compressed top spring 12 and prevent it from rebounding automatically, a limit slot 8 is provided on one side of the outer wall of the spring cavity 5, and a limit insert 9 is movably inserted into the limit slot 8. In order to better limit the engagement, the top of the limit insert 9 is designed with a concave arc shape, and the concave arc edge can just cover the outside of the ejector pin 6.

[0018] Based on the above structure, when the lower mold base 2 of the paper drum mold of this utility model is in use, the material for paper drum forming can be placed in its forming cavity 3. Then, the ejector pin 6 can be manually pushed by the external ejector rod, so that the ejector pin 6 retracts into the ejector hole 4. During the process of the ejector pin 6 retracting downward, it can compress the ejector spring 12 at the bottom. After the ejector spring 12 is in a fully compressed state, the limiting insert 9 is fully inserted into the limiting slot 8.

[0019] When the limiting insert 9 is fully inserted, the top of the limiting insert 9 can be placed above the spring plate 7 to limit and block the spring plate 7, preventing the compressed ejector spring 12 from automatically rebounding. This has a certain spring travel limiting effect. The retraction limiting work of the two ejector pins 6 is completed by the above method.

[0020] After the paper drum in the forming cavity 3 is formed, the limiting inserts 9 on both sides can be manually pulled out. After the limiting inserts 9 are pulled out, the compressed ejector spring 12 is no longer limited by the limiting inserts 9, so the ejector spring 12 will elastically reset. The ejector pin 6 can be ejected upward through the elastic reset of the ejector spring 12. The ejector pin 6 can eject the paper drum at the edge of the forming cavity 3, so that the paper drum can be ejected and separated from the forming cavity 3, and the spring-type automatic ejection and demolding process is completed.

[0021] In this embodiment, in order to achieve the closed forming adaptation effect of the mold, an upper template 10 is provided above the lower mold base 2. A forming punch 11 adapted to the forming cavity 3 is installed at the center of the lower surface of the upper template 10. The forming punch 11 can cooperate with the forming cavity 3 to perform a downward closing forming operation.

[0022] Working principle: In actual use, the upper template 10 of this utility model can be installed on an external lifting drive structure, so that the upper template 10 can be driven to descend and close and rise and open through the external lifting drive structure.

[0023] When the lower mold base 2 of the paper drum mold of this utility model is in use, the ejector pin 6 can be manually pushed by the external ejector rod, so that the ejector pin 6 retracts into the ejector hole 4. During the downward retraction of the ejector pin 6, it can compress the ejector spring 12 at the bottom. By continuously pressing down the ejector pin 6, the ejector spring 12 can be in a fully compressed state. Then, the limiting insert 9 is inserted from the side into the corresponding limiting slot 8.

[0024] When the limiting insert 9 is fully inserted, the top of the limiting insert 9 can be placed above the spring plate 7. In this way, the inserted limiting insert 9 can limit and block the spring plate 7, preventing the compressed ejector spring 12 from automatically rebounding. It has a certain spring stroke limiting effect. The retraction limiting work of the two ejector pins 6 can be completed by the above method.

[0025] Then, the material for forming paper is placed in the forming cavity 3. After the material is placed, the upper template 10 and the forming punch 11 can be driven down by the external lifting drive structure. After the forming punch 11 is lowered, it closes with the forming cavity 3 to form the mold, thus completing the mold closing and forming work.

[0026] After the paper drum in the forming cavity 3 is formed, the forming punch 11 moves upward to open the mold. After the mold opens, the limiting inserts 9 on both sides can be manually pulled out. After the limiting inserts 9 are pulled out, the compressed ejector spring 12 is no longer limited by the limiting inserts 9. At this time, the ejector spring 12 elastically resets. The ejector pin 6 can be ejected upward through the elastic reset of the ejector spring 12. The ejector pin 6 can eject the paper drum at the edge of the forming cavity 3, thereby separating the paper drum from the forming cavity 3 and completing the spring-type automatic ejection demolding work. It has the effect of automatic elastic ejection demolding.

[0027] In summary, the paper drum mold structure of this utility model, when in use, utilizes the spring-type ejection structure of the ejector spring 12 and ejector pin 6 to automatically eject the paper after it has been formed, facilitating the ejection and demolding of the paper drum. Compared to traditional paper drum molds, it offers the practical effect of automatic ejection and demolding, eliminating the need for manual edge lifting during demolding. This significantly improves the safety of paper drum separation and demolding, preventing edge lifting and damage, and providing a more convenient product demolding experience. Overall, it is more practical, and the mold has a simple overall structure, is easy to manufacture, and is suitable for implementation.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A wrap-around reinforced paper drum mold structure, comprising a lower template (1), characterized in that, The lower mold base (2) is fixedly installed on the upper surface of the lower mold base (1). A forming cavity (3) is opened at the center of the outer surface of the lower mold base (2). Ejector holes (4) are opened on both sides of the inner surface of the forming cavity (3). A spring cavity (5) is opened at the bottom of the ejector hole (4) and inside the lower mold base (2). An ejector pin (6) is movably inserted in the ejector hole (4). A spring plate (7) is fixedly installed at the bottom of the ejector pin (6) and inside the spring cavity (5). An ejector spring (12) is fixedly installed on the lower surface of the spring plate (7). A limit slot (8) is opened on one side of the outer wall of the spring cavity (5). A limit insert (9) is movably inserted in the limit slot (8).

2. The encapsulated reinforced paper drum mold structure according to claim 1, characterized in that: The top of the limiting insert (9) is designed with a concave arc structure.

3. The encapsulated reinforced paper drum mold structure according to claim 1, characterized in that: The limiting slot (8) and the spring cavity (5) are designed to be interconnected, and the top hole (4) and the spring cavity (5) are interconnected.

4. The encapsulated reinforced paper drum mold structure according to claim 1, characterized in that: An upper template (10) is provided above the lower mold base (2), and a forming punch (11) adapted to the forming cavity (3) is installed at the center of the lower surface of the upper template (10).

5. The encapsulated reinforced paper drum mold structure according to claim 1, characterized in that: The tail end of the top spring (12) is fixedly connected to the inner wall of the bottom end of the spring cavity (5).

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