Mould for forcibly removing sprue waste glue

Abstract

The invention discloses a sprue waste rubber forced-release type mold, which comprises a panel, a front mold, a sprue bush fixed on the panel and a runner arranged on the front mold, and is characterized in that a separation plate is arranged between the panel and the front mold, and a delayed separation structure is arranged between the separation plate and the front mold; and the delay separation structure can drive the separation plate to move together after the front mold moves for a certain distance. The separation plate is arranged between the panel and the front mold, after the mold is opened and the waste rubber is separated from the front mold, the front mold drives the separation plate to move through the delayed separation structure to drive the waste rubber to move, so that the waste rubber is pulled out of the sprue bush and falls on a machine table to be conveniently collected, automatic separation of the waste rubber is achieved, and the structure is high in efficiency and low in cost. And an operator does not need to manually pull out the waste glue, so that the risk of scalding is also avoided.

Description

Technical Field

[0001] This invention relates to a mold, and more particularly to a mold for forcefully removing waste glue from the gate. Background Technology

[0002] Molds are commonly used molding devices in modern industrial production. Ordinary molds have a sprue bushing, which is connected to the nozzle of the injection molding machine, and the molten plastic is injected into the molding cavity of the mold core through the runner in the mold.

[0003] The mold opening process of the above-mentioned ordinary mold is as follows: When the mold is opened, the rear mold moves first and separates from the front mold. The product moves together with the rear mold and also separates from the front mold, thus separating from the waste glue (also known as sprue glue) in the runner. Then the front mold and the rear mold move together to separate the waste glue in the runner from the front mold. Then the ejector pin ejects the product. However, after the above process is completed, the waste glue is still embedded in the sprue bushing and needs to be pulled out manually. This is not only inefficient, but also easy for the operator to get burned when pulling out the waste glue because the mold temperature is high.

[0004] Therefore, the applicant designed a gate waste glue strong removal mold to solve the above problems. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the present invention provides a mold for forceful removal of waste glue from the gate. The technical solution adopted by this invention to solve its technical problem is: A gate waste glue forced removal mold includes a panel, a front mold, a gate sleeve fixed to the panel, and a runner disposed on the front mold. The mold is characterized in that: a separation plate is provided between the panel and the front mold, and a delayed separation structure is provided between the separation plate and the front mold. The delayed separation structure can drive the separation plate to move together after the front mold moves a certain distance.

[0006] The delayed separation structure includes a rivet disposed on the separation plate and a delay hole disposed on the front mold, wherein the head of the rivet is located in the delay hole.

[0007] The delay hole includes a first hole and a second hole that communicates with the first hole. The shank of the pull stud is located in the first hole, and the head of the stud can move in the second hole. The length of the second hole is greater than the thickness of the head of the stud.

[0008] It also includes a rear mold, which has a third hole that communicates with a second hole, and the nail head can move in the third hole.

[0009] It also includes a side plate, which has a fourth hole, and the third hole and the fourth hole are connected, allowing the nail head to move within the fourth hole.

[0010] A delay limiting structure is provided between the separation plate and the panel. The delay limiting structure includes a limiting hole provided on the panel and a limiting pin provided on the separation plate. The limiting pin is located in the limiting hole.

[0011] The limiting hole includes a through hole and a countersunk hole that communicates with the through hole. The rod of the limiting pin is located in the through hole, and the head of the limiting pin is located in the countersunk hole. The length of the countersunk hole is greater than the thickness of the head of the limiting pin.

[0012] The flow channel includes a main flow channel and two parallel branch flow channels. The branch flow channels are connected to the main flow channel, and the gate sleeve is connected to the main flow channel.

[0013] The sprue sleeve is equipped with a sprue needle, one end of which is located in the main channel.

[0014] The separation plate is provided with a bushing hole, and the gate sleeve is located in the bushing hole and communicates with the flow channel.

[0015] The beneficial effects of this invention are as follows: This invention provides a separation plate between the panel and the front mold. After the mold is opened, the waste glue separates from the front mold. The front mold then moves the separation plate through a delayed separation structure, thereby pulling the waste glue out of the sprue sleeve and dropping it onto the machine for easy collection. This achieves automatic detachment of the waste glue. The above structure is not only highly efficient, but also eliminates the need for the operator to manually pull out the waste glue, thus avoiding the risk of burns. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is an overall structural diagram of the mold; Figure 2 This is a top view of the mold; Figure 3 yes Figure 2 Cross-sectional structural diagram of AA; Figure 4 yes Figure 2 Cross-sectional structural diagram of BB; Figure 5 This is a structural diagram of waste glue; Figure 6 This is a cross-sectional view of the delayed limiting structure. Detailed Implementation

[0018] The advantages and features of this disclosure, as well as its implementation methods, will be illustrated by the following embodiments described with reference to the accompanying drawings. However, this disclosure may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be comprehensive and complete, and will fully convey the scope of this disclosure to those skilled in the art. Furthermore, this disclosure is limited only by the scope of the claims.

[0019] The shapes, dimensions, scales, angles, and numbers disclosed in the accompanying drawings used to describe embodiments of this disclosure are merely examples, and therefore this disclosure is not limited to the details shown. Throughout this specification, the same reference numerals refer to the same elements. In the following description, detailed descriptions of relevant known functions or configurations will be omitted where it is determined that such detailed descriptions would unnecessarily obscure the focus of this disclosure. Where the terms “comprising,” “having,” and “including” are used in this specification, additional components may be added unless “only” is used. Unless otherwise indicated, singular terms may include plural forms.

[0020] When interpreting components, even if not explicitly described, the components are understood to include a range of tolerances.

[0021] When describing positional relationships, such as "on," "above," "below," and "adjacent to," one or more parts may be arranged between two other parts unless "immediately following" or "directly" is used.

[0022] When describing temporal relationships, such as when time sequence is described as “after,” “following,” “next,” and “before,” discontinuous cases may be included unless “exactly” or “directly” is used.

[0023] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from other elements. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element, without departing from the scope of this disclosure.

[0024] As will be fully understood by those skilled in the art, the features of the different embodiments of this disclosure may be coupled or combined with each other in part or in whole, and may cooperate with each other and be technically driven in various ways. The embodiments of this disclosure may be implemented independently of each other, or may be implemented together in an interdependent relationship.

[0025] Reference Figures 1 to 5This invention discloses a forced release mold for waste glue from the sprue, comprising a panel 1, a front mold 2, a rear mold 3, a sprue sleeve 4 fixed to the panel 1, and a runner 5 disposed on the front mold 2. The sprue sleeve 4 is located on the bottom surface of the panel 1 and is fixed to the panel 1 by screws. As a specific structure, the bottom surface of the panel 1 is provided with a positioning hole and a panel 1 hole communicating with the positioning hole. The sprue sleeve 4 is embedded in the positioning hole and communicates with the panel 1 hole. Of course, the nozzle of the molding machine is connected to the sprue sleeve 4 through the panel 1 hole. A separation plate 6 is provided between the panel 1 and the front mold 2. A delayed separation structure is provided between the separation plate 6 and the front mold 2. The delayed separation structure can drive the separation plate 6 to move together after the front mold 2 moves a certain distance. A delayed limiting structure is provided between the separation plate 6 and the panel 1. The delayed limiting structure can restrict the movement of the separation plate 6 after it moves a certain distance.

[0026] In this application, the runner 5 includes a main runner 7 and two parallel branch runners 8. The branch runners 8 are connected to the main runner 7, and the sprue sleeve 4 is also connected to the main runner 7. The design of the two branch runners 8 allows for the simultaneous molding of two products in one mold. The separation plate 6 of this application cooperates with the sliding shaft of the original mold, thus enabling linear movement.

[0027] With the above structure, when the mold is opened, the rear mold 3 moves first and separates from the front mold 2. The product moves together with the rear mold 3 and also separates from the front mold 2, thus separating from the waste glue 9 in the runner 5. Then the front mold 2 and the rear mold 3 move together to separate the waste glue 9 in the runner 5 from the front mold 2. During the movement of the front mold 2, the front mold 2 drives the separation plate 6 to move together after moving a certain distance through the delayed separation structure. This causes the separation plate 6 to pull the waste glue 9 out of the sprue bushing 4 and drop it onto the machine for easy collection, realizing the automatic separation of the waste glue 9. Of course, the mold closing action is the opposite of the above process.

[0028] As a preferred structure, the separation plate 6 is provided with a bushing hole, and the sprue sleeve 4 is located in the bushing hole and communicates with the runner 5. The above structure can make the mold structure compact, and the diameter of the bushing hole is large. After the separation plate 6 pulls the waste glue 9 out of the sprue sleeve 4, the waste glue 9 will not get stuck in the bushing hole.

[0029] As shown in the figure, the delayed separation structure includes a pull stud 10 disposed on the separation plate 6 and a delayed hole disposed on the front mold 2. The head of the pull stud 10 is located in the delayed hole. More specifically, the delayed hole includes a first hole 11 and a second hole 12 that communicates with the first hole 11. The shank 13 of the pull stud 10 is located in the first hole 11 and is fixed to the separation plate 6 by threads. The head 14 can move in the second hole 12, and the length of the second hole 12 is greater than the thickness of the head 14. Therefore, through the above structure, when the front mold 2 moves, because the length of hole 2 12 is greater than the thickness of nail head 14, nail head 14 can move relatively within hole 2 12. Therefore, the separation plate 6 will not be moved by the front mold 2. After the front mold 2 moves a certain distance, when nail head 14 moves to the step surface where hole 2 12 and hole 11 intersect, the front mold 2 can pull the separation plate 6 together through nail head 14 and nail rod 13, thereby realizing the function of the separation plate 6 pulling out the waste glue 9.

[0030] There is also a push plate 21 between the front mold 2 and the separation plate 6 in this application. The design of the push plate 21 is to realize the core pulling of the snap-fit, which is not related to the improvement point of this application. Therefore, the specific structure is not described in detail, but the hole 11 passes through the push plate 21.

[0031] As shown in the figure, the rear mold 3 is provided with hole three 15, which is connected to hole two 12. The pin head 14 can move in hole three 15. It also includes a side plate 16, which is provided with hole four 17, which is connected to hole three 15. The pin head 14 can move in hole four 17. Because the flow channel 8 is relatively long, the front mold 2 needs a long stroke to achieve complete separation of waste glue from the front mold 2. Therefore, the pin head 14 also needs a long moving distance. Therefore, hole three 15 extends the length of hole two 12, which can provide a longer moving distance for the ejector. Similarly, hole four 17 is also to extend the length of hole two 12, which can provide a longer moving distance for the ejector.

[0032] As shown in the figure, as a preferred structure, the sprue sleeve 4 is provided with a sprue needle 18. One end of the sprue needle 18 is located in the runner 5. In this way, after injection molding, the waste glue 9 can be wrapped with the end of the sprue needle 18, preventing the waste glue 9 from getting stuck in the front mold 2 and moving with the front mold 2 when the front mold 2 moves, which would make it difficult to remove the glue later. Of course, when the separation plate 6 moves, the separation plate 6 will push the waste glue 9 and cause the waste glue 9 to separate from the sprue needle 18.

[0033] like Figure 6As shown, a delayed limiting structure is provided between the separation plate 6 and the panel 1. The delayed limiting structure includes a limiting hole 19 provided on the panel 1 and a limiting pin 20 provided on the separation plate 6. The limiting pin 20 is located in the limiting hole 19. The limiting hole 19 includes a through hole and a countersunk hole communicating with the through hole. The rod of the limiting pin 20 is located in the through hole, and the head of the limiting pin 20 is located in the countersunk hole. The length of the countersunk hole is greater than the thickness of the head of the limiting pin 20. The delayed limiting structure can limit the separation plate 6 and the rear mold 3, preventing the separation plate 6 and the rear mold 3 from being misaligned after mold opening.

[0034] The above provides a detailed description of a gate waste glue forced removal mold provided by the embodiments of the present invention. Specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A mold for forceful removal of waste glue from the gate, comprising a panel, a front mold, a gate sleeve fixed to the panel, and a runner disposed in the front mold, characterized in that: A separation plate is provided between the panel and the front mold, and a delayed separation structure is provided between the separation plate and the front mold. The delayed separation structure can drive the separation plate to move together after the front mold moves a certain distance.

2. The gate waste glue forced removal mold according to claim 1, characterized in that: The delayed separation structure includes a rivet disposed on the separation plate and a delay hole disposed on the front mold, wherein the head of the rivet is located in the delay hole.

3. The gate waste glue forced removal mold according to claim 2, characterized in that: The delay hole includes a first hole and a second hole that communicates with the first hole. The shank of the pull stud is located in the first hole, and the head of the stud can move in the second hole. The length of the second hole is greater than the thickness of the head of the stud.

4. The gate waste glue forced removal mold according to claim 3, characterized in that: It also includes a rear mold, which has a third hole that communicates with a second hole, and the nail head can move in the third hole.

5. A gate waste glue forced removal mold according to claim 4, characterized in that: It also includes a side plate, which has a fourth hole, and the third hole and the fourth hole are connected, allowing the nail head to move within the fourth hole.

6. The gate waste glue forced removal mold according to claim 1, characterized in that: A delay limiting structure is provided between the separation plate and the panel. The delay limiting structure includes a limiting hole provided on the panel and a limiting pin provided on the separation plate. The limiting pin is located in the limiting hole.

7. A gate waste glue forced removal mold according to claim 6, characterized in that: The limiting hole includes a through hole and a countersunk hole that communicates with the through hole. The rod of the limiting pin is located in the through hole, and the head of the limiting pin is located in the countersunk hole. The length of the countersunk hole is greater than the thickness of the head of the limiting pin.

8. A gate waste glue forced removal mold according to claim 1, characterized in that: The flow channel includes a main flow channel and two parallel branch flow channels. The branch flow channels are connected to the main flow channel, and the gate sleeve is connected to the main flow channel.

9. A gate waste glue forced removal mold according to claim 8, characterized in that: The sprue sleeve is equipped with a sprue needle, one end of which is located in the main channel.

10. A gate waste glue forced removal mold according to claim 1, characterized in that: The separation plate is provided with a bushing hole, and the gate sleeve is located in the bushing hole and communicates with the flow channel.

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