ejector pin hole waste mold

Abstract

This application discloses a ejector pin hole-removing waste mold, belonging to the field of mold waste removal. It includes a lower mold base, with an upper mold base positioned above it. A lower template is installed on the upper left side of the lower mold base, and an upper template is installed on the lower left side of the upper mold base. A waste removal mechanism is provided between the lower and upper mold bases. The beneficial effect of this application is that it provides an ejector pin hole-removing waste mold. By setting up a waste removal mechanism, as the strip moves from left to right between the lower and upper templates, the upper template continuously moves downwards to press the strip. During this process, the waste material being pressed down is supported by a support rod, maintaining the same height as the strip, and continues to move right with the strip. Subsequently, when the upper template falls again to press, the ejector pin pushes down the waste material in the strip, causing it to fall through the waste removal port inside the lower mold base and be collected. This prevents waste accumulation and is suitable for waste materials of different hardnesses.

Description

Technical Field

[0001] This application relates to the field of mold waste removal, specifically to molds with ejector pin hole waste removal. Background Technology

[0002] In the mold processing industry, waste removal is a crucial step in ensuring production continuity and product quality. Current common waste removal methods have significant drawbacks and fail to meet the demands for efficient and low-cost production.

[0003] While the method of collecting waste through the back cavity has a simple mold structure and low manufacturing cost, it requires manual intervention to periodically stop the machine to clean the waste accumulated in the cavity. This method is not only inefficient due to frequent production interruptions, but also suffers from high labor intensity, and the risk of waste clogging the mold cavity if cleaning is not timely, which can affect product accuracy or even damage the mold. In the long run, the labor cost is also high.

[0004] Another waste removal method is the pull-down traction membrane, which uses an adhesive traction membrane to adhere to and pull out the waste. This method is suitable for flexible and thin waste, but it has significant limitations: First, the traction membrane is a disposable consumable, and continuous procurement leads to increased long-term costs. Second, it requires a complex traction mechanism, which increases the initial investment and maintenance difficulty of the equipment. Third, the adhesiveness of the traction membrane needs to be precisely matched with the characteristics of the waste. Insufficient adhesiveness can easily cause the waste to fall off, while excessive adhesiveness may stick to the finished product or mold. It has poor adaptability to different types of waste, especially in handling rigid blocky waste.

[0005] Currently, there is no ejector pin hole waste mold that can adapt to various types of waste and achieve efficient and automated waste removal. Utility Model Content

[0006] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0007] The purpose of this application is to address the shortcomings of existing technologies by providing a ejector pin-driven waste removal mold. This addresses the problems of existing methods for collecting waste from holes in the back cavity, which involve high labor intensity due to manual operation and the potential for waste to clog the mold cavity if not cleaned in a timely manner. Furthermore, the waste removal method using a drag-down film requires precise matching of the film's viscosity with the characteristics of the waste. Insufficient viscosity can cause the waste to fall off, while excessive viscosity may cause it to stick to the finished product or the mold. This method also has poor adaptability to different types of waste, especially in handling rigid blocky waste.

[0008] To achieve the above objectives, this application provides the following technical solution: A waste removal mold with ejector pins includes a lower mold base, an upper mold base above the lower mold base, a lower template mounted on the upper left side of the lower mold base, an upper template mounted on the lower left side of the upper mold base, a waste removal mechanism between the lower mold base and the upper mold base, the waste removal mechanism including a spring connected to the bottom of the lower mold base, a connecting plate fixedly connected to the upper end of the spring, a support rod mounted on the upper side of the connecting plate, an ejector pin mounted on the lower right side of the upper mold base, and a disassembly unit at the lower end of the lower mold base.

[0009] Furthermore, the disassembly and assembly unit includes a base plate connected to the lower end of the lower mold base, and an mounting plate is welded to the middle position of the outer perimeter of the base plate, with internal hexagon bolts connected inside the mounting plate.

[0010] Furthermore, the lower outer side of the upper template is slidably connected to the inner side of the inner cavity of the lower template.

[0011] Furthermore, a groove is provided on the lower left side of the lower mold base, and a sliding hole is provided inside the base plate above the groove. The outer side of the support rod is slidably connected to the inner side of the sliding hole, and the top end of the support rod is at the same height as the upper side of the lower mold plate.

[0012] Furthermore, a waste discharge port that runs vertically through the lower mold base is provided on the right side inside the mold base, and the lower end of the ejector pin abuts against the upper side of the waste material.

[0013] Furthermore, the lower end of the lower mold base is provided with an installation groove at the middle position around the groove, the outer perimeter of the base plate is slidably connected to the lower end of the inner side of the groove, and the outer side of the mounting plate is slidably connected to the inner side of the installation groove.

[0014] Furthermore, a circular groove is formed at the lower end of the middle position inside the mounting plate, and a sliding hole is formed inside the mounting plate above the circular groove. A threaded groove is formed inside the lower mold base above the mounting plate. The inner diameter of the circular groove is larger than the diameter of the sliding hole. The outer side of the screw head of the hexagon socket head cap screw is slidably connected to the inner side of the circular groove. The upper side of the hexagon socket head cap screw abuts against the top of the inner side of the circular groove. The outer side of the screw shank of the hexagon socket head cap screw is slidably connected to the inner side of the sliding hole. The upper outer end of the hexagon socket head cap screw is threadedly connected to the inner side of the threaded groove.

[0015] The beneficial effects of this application are as follows: by setting up a waste removal mechanism, as the strip moves from left to right between the lower and upper mold plates, the upper mold plate continuously moves down to punch the strip. During this process, the waste material that is punched down is supported by the support rod and continues to maintain the same height as the strip, and continues to move to the right along with the strip. Then, when the upper mold plate falls down again to punch, the ejector pin will push down the waste material in the strip, push the waste material down, and then fall through the waste removal port inside the lower mold base and be collected. This prevents the accumulation of waste material and is suitable for waste materials of different hardness.

[0016] By setting up a disassembly and assembly unit, the mounting plate can be removed from the mounting groove by removing and assembling the internal hex bolts of the lower mounting plate. At the same time, the support rod can be removed from the lower mold base for easy disassembly and replacement when the support rod is worn. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0018] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0019] In the attached diagram: Figure 1 This is a schematic diagram of the main structure of this application; Figure 2 This is a schematic diagram of the structure at the lower end of the lower mold base in this application; Figure 3 This is a schematic diagram of the internal structure of the lower mold base in this application; Figure 4 This is a schematic diagram of the internal hexagonal bolt structure in this application.

[0020] 1. Lower mold base; 2. Upper mold base; 3. Lower template; 4. Upper template; 501. Spring; 502. Connecting plate; 503. Support rod; 504. Ejector pin; 601. Base plate; 602. Mounting plate; 603. Socket head cap bolt. Detailed Implementation

[0021] The ejector pin hole waste mold provided in this application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should also be noted that, in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can also use other alternative methods to implement some well-known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this application.

[0022] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0023] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0024] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] Reference Figure 1-3 As shown, this utility model provides a waste ejector pin discharge mold, including a lower mold base 1, an upper mold base 2 above the lower mold base 1, a lower template 3 installed on the upper left side of the lower mold base 1, an upper template 4 installed on the lower left side of the upper mold base 2, and a waste discharge mechanism between the lower mold base 1 and the upper mold base 2. The waste discharge mechanism includes a spring 501 connected to the bottom of the lower mold base 1, a connecting plate 502 fixedly connected to the upper end of the spring 501, a support rod 503 installed on the upper side of the connecting plate 502, an ejector pin 504 installed on the lower right side of the upper mold base 2, and a sliding connection between the lower outer side of the upper template 4 and the inner side of the mold cavity inside the lower template 3. This ensures precise matching of the upper and lower templates 3 during the stamping process, avoids deformation of the waste material due to misalignment, and ensures stable waste material shape to accommodate the subsequent waste discharge action of the ejector pin 504.

[0026] The lower mold base 1 has a groove on its lower left side, and the base plate 601 has a sliding hole above the groove. The outer side of the support rod 503 is slidably connected to the inner side of the sliding hole, and the top of the support rod 503 is at the same height as the upper side of the lower mold plate 3. This allows the waste material to move smoothly with the conveyor belt without jamming, ensuring that both rigid and flexible waste materials can be stably supported to the waste discharge position.

[0027] In addition, a waste discharge port that runs vertically through the lower mold base 1 is provided on the right side, and the lower end of the ejector pin 504 abuts against the upper side of the waste material. The downward pushing force of the ejector pin 504 directly presses the waste material into the waste discharge port, avoiding the waste discharge delay caused by manual cleaning or consumable material traction, and realizing the immediate discharge of waste material to prevent accumulation.

[0028] Cooperate Figure 4As shown, a disassembly and assembly unit is provided at the lower end of the lower mold base 1. The disassembly and assembly unit includes a base plate 601 connected to the lower end of the lower mold base 1. An mounting plate 602 is welded to the middle position of the outer perimeter of the base plate 601. An installation groove is opened at the middle position of the lower end of the lower mold base 1 around the groove. The outer perimeter of the base plate 601 is slidably connected to the lower end of the inner side of the groove, and the outer side of the mounting plate 602 is slidably connected to the inner side of the installation groove. The limiting structure ensures the stability of the base plate 601 after installation, and avoids the support rod 503 from shaking during support and waste discharge, which would affect the accuracy of waste material conveying.

[0029] The mounting plate 602 is internally connected to a hexagon socket head cap screw 603. A circular groove is formed at the lower end of the center of the mounting plate 602, and a sliding hole is formed above the circular groove. A threaded groove is formed above the mounting plate 602 in the lower mold base 1. The inner diameter of the circular groove is larger than the diameter of the sliding hole. The outer side of the threaded head of the hexagon socket head cap screw 603 is slidably connected to the inner side of the circular groove. The upper side of the hexagon socket head cap screw 603 abuts against the top of the inner side of the circular groove. The outer side of the threaded shank of the hexagon socket head cap screw 603 is slidably connected to the inner side of the sliding hole. The upper outer end of the hexagon socket head cap screw 603 is threadedly connected to the inner side of the threaded groove. This concealed installation of the hexagon socket head cap screw 603 avoids interference with the waste discharge path and ensures even force distribution during assembly and disassembly, extending the service life of the installation structure.

[0030] Working principle: When the mold is working, after the equipment is started, the strip material is conveyed from left to right between the lower mold plate 3 and the upper mold plate 4, ready to enter the stamping process. During stamping, the upper mold base 2 drives the upper mold plate 4 to move downward. The outer side of the lower end of the upper mold plate 4 slides along the inner cavity of the lower mold plate 3, accurately stamping the strip material. The waste generated by stamping is initially separated from the strip material, but because the top of the support rod 503 is flush with the upper side of the lower mold plate 3, the waste material is supported upward by the support rod 503, maintaining the same height as the strip material, and continues to be conveyed to the right with the strip material. When the strip material carrying the waste material moves to the upper right of the waste discharge port inside the lower mold base 1, the upper mold base 2 drives the ejector pin 504 to move downward again. After the lower end of the ejector pin 504 abuts against the upper side of the waste material, it applies a downward pushing force to overcome the residual connection force between the waste material and the strip material and the supporting force of the support rod 503. Under the action of the top thrust, the waste material is separated from the strip and falls downward into the waste discharge port of the lower die holder 1. It is quickly discharged through the waste discharge port and collected by the collection device below, completing a single waste discharge action. Then, the upper die holder 2 drives the upper template 4 and the ejector pin 504 to reset upward. The spring 501 pushes the connecting plate 502 and the support rod 503 to rise back to the initial height, preparing for the next stamping waste discharge. The whole process is synchronized with the strip conveying and the opening and closing of the mold, without the need to stop the machine.

[0031] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

[0032] It should be noted that this application covers any alternatives, modifications, equivalent methods, and solutions made within the spirit and scope of this application. To provide the public with a thorough understanding of this application, specific details are described in detail in the preferred embodiments, while those skilled in the art can fully understand this application without these details. Furthermore, to avoid unnecessary confusion regarding the substance of this application, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0033] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A pinning and holing waste mould comprising a lower die seat (1) characterised in that: An upper mold base (2) is provided above the lower mold base (1). A lower template (3) is installed on the upper left side of the lower mold base (1). An upper template (4) is installed on the lower left side of the upper mold base (2). A waste removal mechanism is provided between the lower mold base (1) and the upper mold base (2). The waste removal mechanism includes a spring (501) connected to the bottom of the lower mold base (1). A connecting plate (502) is fixedly connected to the upper end of the spring (501). A support rod (503) is installed on the upper side of the connecting plate (502). An ejector pin (504) is installed on the lower right side of the upper mold base (2). A disassembly and assembly unit is provided at the lower end of the lower mold base (1).

2. The ejector pin arraying and holing waste mold of claim 1, wherein: The disassembly and assembly unit includes a base plate (601) connected to the lower end of the lower mold base (1). A mounting plate (602) is welded to the middle position of the outer perimeter of the base plate (601). An internal hexagon bolt (603) is connected inside the mounting plate (602).

3. The ejector pin arraying and hole forming waste mold according to claim 1, characterized in that: The lower outer side of the upper template (4) is slidably connected to the inner side of the inner cavity of the lower template (3).

4. The ejector pin arraying and hole forming waste mold according to claim 2, characterized in that: The lower mold base (1) has a groove on the lower left side, and the base plate (601) has a sliding hole above the groove. The outer side of the support rod (503) is slidably connected to the inner side of the sliding hole, and the top of the support rod (503) is at the same height as the upper side of the lower mold plate (3).

5. The ejector pin arraying waste mold of claim 1, wherein: The lower mold base (1) has a waste discharge port that runs vertically through the inside on the right side, and the lower end of the ejector pin (504) abuts against the upper side of the waste material.

6. The ejector pin arraying and hole forming waste mold according to claim 2, characterized in that: The lower mold base (1) has an installation groove at the middle position of the groove. The outer perimeter of the base plate (601) is slidably connected to the lower end of the groove, and the outer side of the mounting plate (602) is slidably connected to the inner side of the installation groove.

7. The ejector pin arraying and hole forming waste mold according to claim 2, characterized in that: A circular groove is provided at the lower end of the middle position inside the mounting plate (602). A sliding hole is provided inside the mounting plate (602) above the circular groove. A threaded groove is provided inside the lower mold base (1) above the mounting plate (602). The inner diameter of the circular groove is larger than the diameter of the sliding hole. The outer side of the screw head of the socket head cap screw (603) is slidably connected to the inner side of the circular groove. The upper side of the socket head cap screw (603) abuts against the top of the inner side of the circular groove. The outer side of the screw rod of the socket head cap screw (603) is slidably connected to the inner side of the sliding hole. The upper outer side of the socket head cap screw (603) is threadedly connected to the inner side of the threaded groove.

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