A lever injection mold compound cleaning tool

Abstract

The utility model discloses a lever type injection mold glue cleaning tool belongs to injection processing special tool. Lever type injection mold glue cleaning tool of the utility model, including melting and scalding pull rod, lever component and fulcrum component, the middle part of lever component can be connected with melting and scalding pull rod, and one end of lever component is operating part, and the other end is fulcrum part, and the fulcrum component is set on the fulcrum part of lever component. The utility model is equipped with the hooking groove in one end of melting and scalding pull rod, can improve the bonding strength between melting and scalding pull rod and glue, and uses lever principle to exert the pulling force, and the force exertion is more uniform and stable, and the operation is more relaxed and labor-saving, and can observe while exerting force, and the operation controllability is strong, effectively avoids the secondary pull broken glue, can prevent the scratch to the mold cavity, improves the cleaning efficiency of glue in mold gate and complex mold cavity, and the lever type injection mold glue cleaning tool has specialization and standardization, and the use is flexible and convenient, and the functions are various, and the service life is long.

Description

Technical Field

[0001] This utility model relates to tools for injection molding, and more specifically, to a lever-type tool for cleaning rubber material from injection molds. Background Technology

[0002] Injection molding is a primary molding method that uses plastic molds to produce plastic products of various shapes from thermoplastic or thermosetting materials. Injection molding is achieved through an injection molding machine and molds, and mainly includes complex structures such as injection molds, gating systems, and cooling systems.

[0003] During injection molding, the sprue material is usually demolded along with the main runner and branch runners. However, sometimes the sprue material breaks off inside the sprue. To ensure subsequent injection molding proceeds smoothly, the sprue needs to be cleaned. Since the sprue is located on the fixed mold, which is fixedly mounted on the injection molding machine, the material cannot be ejected from the sprue along the flow direction without removing the fixed mold. Tools must be used to remove the material from the mold cavity side. Currently, a common method for hard plastic materials is hot-melting. A thin rod-shaped object, such as a wire, is heated, melted, and inserted into the plastic material. After cooling, it bonds with the material, and then tools like pliers are used to pull the wire and material out together. However, this method lacks specialized tools. Firstly, the bond between the thin rod and the material cannot be guaranteed. Secondly, the pulling operation is difficult to control, and excessive force can easily break the material again. Furthermore, the mold cavity can be easily scratched during the operation.

[0004] In addition, for mold cavities with complex structures such as ribs, residual rubber material can easily accumulate in complex channels during injection molding. To avoid defects in subsequent injection molding processes, it is necessary to clean the residual rubber material. For rubber material that is difficult to clean from the mold cavity, the aforementioned hot-melt method is usually used. However, there is currently a lack of specialized tools, leading to difficulties in cleaning and a risk of damaging the mold cavity. Summary of the Invention

[0005] 1. Technical problem to be solved by the utility model

[0006] The purpose of this utility model is to overcome the above-mentioned shortcomings of the existing technology and provide a lever-type injection mold material cleaning tool. The technical solution of this utility model utilizes a hot-melt pull rod, a lever component, and a fulcrum component to form a lever pulling mechanism. A hook groove is provided at one end of the hot-melt pull rod, which can improve the bonding strength between the hot-melt pull rod and the material. The lever principle is used to apply pulling force, resulting in more uniform and stable force application, easier and less strenuous operation, and the ability to observe while applying force, providing strong operational control. This effectively avoids secondary material breakage and prevents scratches on the mold cavity, improving the cleaning efficiency of the mold gate and the material inside complex mold cavities, thereby contributing to improved injection molding efficiency. Furthermore, this lever-type injection mold material cleaning tool is specialized and standardized, flexible and convenient to use, multifunctional, and has a long service life.

[0007] 2. Technical Solution

[0008] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0009] This utility model discloses a lever-type injection mold material cleaning tool, including...

[0010] A hot-melting pull rod, one end of which is provided with a hook groove;

[0011] A lever component, the middle of which can be connected to a hot-melt pull rod, one end of which is an operating part and the other end is a fulcrum part;

[0012] A fulcrum component, wherein the fulcrum component is disposed on the fulcrum portion of the lever component.

[0013] Furthermore, the hot-melt pull rod and the lever component are connected by a detachable structure.

[0014] Furthermore, the end of the hot-melt pull rod away from the hook groove has an end cap, and the middle of the lever member has a connecting hole for connecting with the hot-melt pull rod. The connecting hole includes an adjacent large hole and a small hole. The size of the large hole is larger than the size of the end cap, so that the end cap of the hot-melt pull rod can pass through the large hole. The size of the small hole is smaller than the size of the end cap but larger than the root size of the end cap. The lever member can fit the end cap through the large hole and move to the opposite side of the direction of the small hole to engage with the small hole.

[0015] Furthermore, the free end of the hot-melt pull rod is a rotating structure, and the hook groove is a plurality of annular grooves or spiral grooves provided on the free end of the hot-melt pull rod; or, the free end of the hot-melt pull rod is a sheet-like structure, and the hook groove is a toothed groove provided on both sides of the free end of the hot-melt pull rod.

[0016] Furthermore, the rod of the hot-melt pull rod also has file teeth.

[0017] Furthermore, the fulcrum member is mounted on the fulcrum portion of the lever member via a fulcrum position adjustment structure, so as to adjust the relative position of the fulcrum member on the lever member through the fulcrum position adjustment structure.

[0018] Furthermore, the fulcrum component is a screw, and the fulcrum portion of the lever component is provided with a through hole for the fulcrum component to pass through. The fulcrum component passes through the through hole, and an adjusting nut is provided on each side of the lever component on the fulcrum component to realize the position adjustment and fixation of the fulcrum component.

[0019] Furthermore, the tail of the fulcrum member also has a screwing part.

[0020] Furthermore, the front end of the fulcrum member is also provided with a soft contact for contacting the mold.

[0021] Furthermore, the lever component is a strip-shaped metal plate, and has length scales on one or both sides of the lever component that can be used as a ruler.

[0022] 3. Beneficial effects

[0023] Compared with existing known technologies, the technical solution provided by this utility model has the following beneficial effects:

[0024] (1) The present invention provides a lever-type injection mold material cleaning tool, which includes a hot-melt pull rod, a lever component and a fulcrum component. The middle part of the lever component can be connected to the hot-melt pull rod. One end of the lever component is the operating part and the other end is the fulcrum part. The fulcrum component is set on the fulcrum part of the lever component. The hot-melt pull rod, the lever component and the fulcrum component form a lever pulling mechanism. A hook groove is provided at one end of the hot-melt pull rod, which can improve the bonding strength between the hot-melt pull rod and the material. The lever principle is used to apply the pulling force, which makes the force application more uniform and stable, and the operation is easier and less strenuous. It can also be observed while applying force, which makes the operation highly controllable. It effectively avoids secondary breakage of the material and can prevent scratches on the mold cavity. It improves the cleaning efficiency of the mold gate and the material in the complex mold cavity, which in turn helps to improve the injection molding efficiency. In addition, the lever-type injection mold material cleaning tool is specialized and standardized, flexible and convenient to use, has multiple functions and a long service life.

[0025] (2) The present invention provides a lever-type injection mold material cleaning tool, wherein the hot-melt pull rod and the lever component are connected by a detachable structure. When in use, the hot-melt pull rod can be heated separately and then hot-melted with the material, making the hot-melt operation more accurate and convenient. After the hot-melt pull rod and the material are cooled and connected, the lever component and the fulcrum component are assembled to pull out the material, which greatly improves the operational flexibility and convenience of the lever-type injection mold material cleaning tool.

[0026] (3) A lever-type injection mold rubber cleaning tool of the present invention has an end cap at the end of the hot-melt pull rod away from the hook groove, and a connecting hole in the middle of the lever member for connecting with the hot-melt pull rod. The connecting hole includes an adjacent large hole and a small hole. The size of the large hole is larger than the size of the end cap, so that the end cap of the hot-melt pull rod can pass through the large hole. The size of the small hole is smaller than the size of the end cap and larger than the root size of the end cap. The lever member can use the large hole to fit the end cap and move to the opposite side of the direction of the small hole to engage with the small hole. By using the above-mentioned connecting hole to cooperate with the hot-melt pull rod, the structural design is simpler, the operation is more flexible, and the manufacturing is convenient.

[0027] (4) The lever-type injection mold rubber cleaning tool of this utility model has a rotating body structure or a sheet-like structure at the free end of the hot-melt pull rod. When the free end of the hot-melt pull rod is a rotating body structure, the hook groove is a number of annular grooves or spiral grooves provided on the free end of the hot-melt pull rod, which is more suitable for cleaning the rubber material in the gate; when the free end of the hot-melt pull rod is a sheet-like structure, the hook groove is a toothed groove provided on both sides of the free end of the hot-melt pull rod, which is more suitable for cleaning complex structures such as ribs in the mold cavity; the hot-melt pull rod with a suitable structure can be selected according to different needs, and the application range is wider.

[0028] (5) The present invention provides a lever-type injection mold material cleaning tool, wherein the hot-melt pull rod has a file tooth on its rod body, which can be used as a file. The lever component is a strip-shaped metal plate, and there are length scales on one or both sides of the lever component that can be used as a ruler. This can reduce the number of tools in the injection molding workshop, reduce the idle rate of the cleaning tool, and improve its functionality.

[0029] (6) A lever-type injection mold rubber cleaning tool of the present invention has a fulcrum component installed on the fulcrum part of the lever component through a fulcrum position adjustment structure, which is used to adjust the relative position of the fulcrum component on the lever component through the fulcrum position adjustment structure. The fulcrum position can be adjusted according to different molds, making the force application operation more stable and labor-saving.

[0030] (7) The lever-type injection mold rubber cleaning tool of this utility model has a screw as the fulcrum component. The fulcrum part of the lever component is provided with a through hole for the fulcrum component to pass through. The fulcrum component passes through the through hole, and an adjusting nut is provided on each side of the lever component to realize the position adjustment and fixation of the fulcrum component. The fulcrum position is adjusted by using a screw and adjusting nuts. The structure is simple and the adjustment operation is quick and convenient. In addition, the tail of the fulcrum component also has a screwing part, which can be used to apply screwing torque to the screw using tools such as wrenches, so as to facilitate the position adjustment and locking of the adjusting nut.

[0031] (8) The lever-type injection mold material cleaning tool of this utility model is provided with a soft contact for contacting the mold at the front end of the fulcrum component. For example, a copper contact can be used. Its material hardness is lower than that of mold steel, which can prevent scratches and other damage to the mold cavity. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the assembly structure of a lever-type injection mold material cleaning tool according to the present invention;

[0033] Figure 2 for Figure 1 S-shaped structural diagram;

[0034] Figure 3 This is a schematic diagram of the structure of the first type of hot-melt pull rod in this utility model;

[0035] Figure 4 This is a schematic diagram of the structure of the second type of hot-melt pull rod in this utility model;

[0036] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure along the AA direction;

[0037] Figure 6 This is a structural schematic diagram of the fulcrum component in this utility model;

[0038] Figure 7 This is a schematic diagram of the lever component in this utility model.

[0039] Explanation of the labels in the diagram:

[0040] 1. Hot-melt pull rod; 1-1. Hook groove; 1-1a. Circular groove; 1-1b. Toothed groove; 1-2. End cap; 1-3. File teeth;

[0041] 2. Lever component; 2-1. Operating part; 2-2. Fulcrum part; 2-3. Connecting hole; 2-3a. Large hole; 2-3b. Small hole; 2-4. Through hole; 2-5. Length dimension scale;

[0042] 3. Support component; 3-1. Adjusting nut; 3-2. Tightening part; 3-3. Soft contact. Detailed Implementation

[0043] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0044] [Example]

[0045] Combination Figure 1 and Figure 2As shown, this embodiment of a lever-type injection mold material cleaning tool includes a hot-melt pull rod 1, a lever component 2, and a fulcrum component 3. One end of the hot-melt pull rod 1 is provided with a hook groove 1-1 to facilitate bonding with the material, improve the bonding strength after hot-melt cooling, reduce the separation of the hot-melt pull rod 1 from the material during the pulling process, and improve the reliability of material cleaning. The middle part of the lever component 2 can be connected to the hot-melt pull rod 1. One end of the lever component 2 is the operating part 2-1, and the other end is the fulcrum part 2-2. During the pulling process, the lever principle is used, and the fulcrum part 2-2 serves as the support end of the lever. The pulling force F is applied from the operating part 2-1, which can save more effort, facilitate stable and uniform force application, improve the controllability of operation, and effectively avoid secondary breakage of the material. The fulcrum component 3 is set on the fulcrum part 2-2 of the lever component 2 and is used to contact the mold and other components to form a lever support point and force point. Compared with existing technologies, this lever-type injection mold material cleaning tool utilizes a lever pulling mechanism composed of a hot-melt pull rod 1, a lever component 2, and a fulcrum component 3. A hook groove 1-1 is provided at one end of the hot-melt pull rod 1, which can improve the bonding strength between the hot-melt pull rod 1 and the material. The lever principle is used to apply pulling force, which is more uniform and stable, making the operation easier and less strenuous. Furthermore, it allows for observation while applying force, resulting in strong operational controllability. It effectively avoids secondary breakage of the material and prevents scratches on the mold cavity, thereby improving the cleaning efficiency of the mold gate and the material inside complex mold cavities.

[0046] In this embodiment, preferably, the hot-melt pull rod 1 and the lever component 2 are connected by a detachable structure. During use, the hot-melt pull rod 1 can be heated separately and then hot-melted with the rubber material, making the hot-melt operation more accurate and convenient. After the hot-melt pull rod 1 and the rubber material have cooled and connected, the lever component 2 and the fulcrum component 3 are then assembled for the rubber material pull-out operation, greatly improving the operational flexibility and convenience of this lever-type injection mold rubber material cleaning tool. As a preferred embodiment, the detachable structure between the hot-melt pull rod 1 and the lever component 2 is as follows:

[0047] like Figure 1 , Figure 2 and Figure 7As shown, the end of the hot melt pull rod 1 away from the hook groove 1-1 has an end cap 1-2. The size of the end cap 1-2 is larger than the size of the rod body of the hot melt pull rod 1. The middle part of the lever member 2 has a connecting hole 2-3 for connecting with the hot melt pull rod 1. The connecting hole 2-3 includes an adjacent large hole 2-3a and a small hole 2-3b. The large hole 2-3a and the small hole 2-3b are connected together. The size of the large hole 2-3a is larger than the size of the end cap 1-2, so that the end cap 1-2 of the hot melt pull rod 1 can pass through the large hole 2-3a. The size of the small hole 2-3b is smaller than the size of the end cap 1-2 and larger than the root size of the end cap 1-2. The lever member 2 can use the large hole 2-3a to fit into the end cap 1-2 and move to the opposite side of the direction of the small hole 2-3b to engage with the small hole 2-3b. In use, after the heat-sealing rod 1 is heat-sealed to the adhesive material, the lever component 2 is inserted through the large hole 2-3a onto the end cap 1-2 of the heat-sealing rod 1. Then, the lever component 2 is pulled to one side, causing the heat-sealing rod 1 to switch into the small hole 2-3b. Since the size of the small hole 2-3b is smaller than the size of the end cap 1-2, the end cap 1-2 can connect the heat-sealing rod 1 and the lever component 2 together in the pulling direction, thereby applying a pulling force to the heat-sealing rod 1 through the lever principle. Using the above-mentioned connecting hole 2-3 to cooperate with the heat-sealing rod 1 results in a simpler structural design, more flexible operation, and easier manufacturing.

[0048] The lever-type injection mold material cleaning tool of this embodiment can be equipped with different structures of hot melt pull rod 1 depending on the cleaning position. The appropriate structure of the hot melt pull rod can be selected according to different needs, making it more widely applicable. Figure 3 A specific structure of a hot melt pull rod 1 is given. The free end of the hot melt pull rod 1 is a rotating structure. The hook groove 1-1 is a number of annular grooves 1-1a or spiral grooves provided on the free end of the hot melt pull rod 1. The hot melt pull rod 1 is more suitable for cleaning the rubber material in the gate. Figure 4 and Figure 5 Another specific structure of the hot-melt pull rod 1 is given. The free end of the hot-melt pull rod 1 is a sheet-like structure, and the hook groove 1-1 is a toothed groove 1-1b provided on both sides of the free end of the hot-melt pull rod 1, which is more suitable for cleaning complex structures such as ribs inside the mold cavity. Specifically, in this embodiment, the rod body of the hot-melt pull rod 1 also has file teeth 1-3, which can be used as a file. In actual manufacturing, the hot-melt pull rod 1 can be made using existing files, and the original file teeth 1-3 are retained where the hook groove 1-1 is not provided, which can be used for mold repair, etc. Figure 4 and Figure 5 In the hot-melting pull rod 1 shown with toothed grooves 1-1b, the toothed grooves 1-1b can adopt a sawtooth structure, in which case it can be used as a hacksaw, which can reduce the number of tools in the injection molding workshop, reduce the idle rate of the cleaning tool, and improve its functionality.

[0049] More preferably, in this embodiment, the lever-type injection mold material cleaning tool has a fulcrum component 3 mounted on the fulcrum portion 2-2 of the lever component 2 via a fulcrum position adjustment structure. This allows the fulcrum component 3 to be adjusted relative to the lever component 2, enabling adjustment of the fulcrum position according to different molds, resulting in more stable and labor-saving force application. Specifically, as shown... Figure 1 , Figure 2 and Figure 7 As shown, the fulcrum member 3 is preferably a screw. The fulcrum portion 2-2 of the lever member 2 has a through hole 2-4 through which the fulcrum member 3 passes. The fulcrum member 3 passes through the through hole 2-4, and an adjusting nut 3-1 is provided on each side of the lever member 2 to adjust and fix the position of the fulcrum member 3. When adjusting the position of the fulcrum member 3, the relative position of the fulcrum member 3 and the lever member 2 can be changed by loosening the adjusting nut 3-1. After adjustment, the adjusting nut 3-1 is tightened, clamping the lever member 2 to fix the fulcrum member 3. Using a screw and adjusting nuts 3-1 to adjust the fulcrum position is simple in structure and quick and convenient in operation. In addition, the tail of the fulcrum member 3 also has a screwing portion 3-2. This screwing portion 3-2 can adopt a non-circular cross-section structure such as a regular hexagon, allowing for easy application of screwing torque using tools such as wrenches, facilitating the adjustment and locking of the adjusting nut 3-1. In use, after the hot melt pull rod 1 is connected to the lever component 2, adjust the length of the fulcrum component 3 so that its front end abuts against the mold and other components at a suitable length, and then press... Figure 1 A certain force is applied in the direction of the arrow of the force F, and a pulling force is applied to the hot-melt rod 1 through the lever action, which improves the stability of pulling the hot-melt rod 1 and the uniformity of force application.

[0050] like Figure 1 and Figure 6 As shown, in this embodiment, the front end of the fulcrum member 3 is further provided with a soft contact 3-3 for contacting the mold. This soft contact 3-3 can be made of a relatively soft material such as copper, and its material hardness is lower than that of mold steel, which can prevent scratches and other damage to the mold cavity. The soft contact 3-3 can be threaded onto the fulcrum member 3 or embedded in the fulcrum member 3. (Refer to...) Figure 7 As shown, the lever component 2 in this embodiment is a strip-shaped metal plate. One or both sides of the lever component 2 also have length scales 2-5 that can be used as a ruler, allowing the lever component 2 to be used as a straightedge. The aforementioned hot-melt pull rod 1 can be made of durable materials such as carbon tool steel. The screws and adjusting nuts 3-1 of the lever component 2 and the fulcrum component 3 can all be made of stainless steel, greatly improving durability.

[0051] This utility model discloses a lever-type injection mold material cleaning tool. It utilizes a hot-melt pull rod, a lever component, and a fulcrum component to form a lever-pulling mechanism. A hook groove is provided at one end of the hot-melt pull rod to improve the bonding strength between the pull rod and the material. Applying pulling force using the lever principle results in more uniform and stable force application, making operation easier and less strenuous. Furthermore, it allows for simultaneous force application and observation, providing strong operational control and effectively preventing secondary material breakage. It also prevents scratches on the mold cavity, improving the cleaning efficiency of the mold gate and complex mold cavities, thereby contributing to improved injection molding efficiency. In addition, this lever-type injection mold material cleaning tool is specialized and standardized, flexible and convenient to use, multifunctional, and has a long service life.

[0052] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A lever-type injection mold material cleaning tool, characterized in that: include A hot-melting pull rod (1), one end of which is provided with a hook groove (1-1); Lever component (2), the middle part of which can be connected to the hot-melt pull rod (1), one end of the lever component (2) is the operating part (2-1), and the other end is the fulcrum part (2-2). A fulcrum component (3) is provided on the fulcrum portion (2-2) of the lever component (2).

2. The lever-type injection mold material cleaning tool according to claim 1, characterized in that: The hot-melting pull rod (1) and the lever component (2) are connected by a detachable structure.

3. The lever-type injection mold material cleaning tool according to claim 2, characterized in that: The hot-melting pull rod (1) has an end cap (1-2) at one end away from the hook groove (1-1). The lever member (2) has a connecting hole (2-3) in the middle for connecting with the hot-melting pull rod (1). The connecting hole (2-3) includes an adjacent large hole (2-3a) and a small hole (2-3b). The size of the large hole (2-3a) is larger than the size of the end cap (1-2), so that the end cap (1-2) of the hot-melting pull rod (1) can pass through the large hole (2-3a). The size of the small hole (2-3b) is smaller than the size of the end cap (1-2) and larger than the root size of the end cap (1-2). The lever member (2) can fit the end cap (1-2) through the large hole (2-3a) and move to the opposite side of the direction of the small hole (2-3b) to engage with the small hole (2-3b).

4. The lever-type injection mold material cleaning tool according to claim 1, characterized in that: The free end of the hot melt pull rod (1) is a rotating body structure, and the hook groove (1-1) is a plurality of annular grooves (1-1a) or spiral grooves provided on the free end of the hot melt pull rod (1); or, the free end of the hot melt pull rod (1) is a sheet-like body structure, and the hook groove (1-1) is a toothed groove (1-1b) provided on both sides of the free end of the hot melt pull rod (1).

5. The lever-type injection mold material cleaning tool according to claim 4, characterized in that: The hot-melting rod (1) also has file teeth (1-3) on its rod body.

6. The lever-type injection mold material cleaning tool according to any one of claims 1 to 5, characterized in that: The fulcrum member (3) is installed on the fulcrum part (2-2) of the lever member (2) through the fulcrum position adjustment structure, so as to adjust the relative position of the fulcrum member (3) on the lever member (2) through the fulcrum position adjustment structure.

7. The lever-type injection mold material cleaning tool according to claim 6, characterized in that: The fulcrum component (3) is a screw. The fulcrum part (2-2) of the lever component (2) is provided with a through hole (2-4) through which the fulcrum component (3) passes. The fulcrum component (3) passes through the through hole (2-4), and an adjusting nut (3-1) is provided on each side of the lever component (2) on the fulcrum component (3) to realize the position adjustment and fixation of the fulcrum component (3).

8. The lever-type injection mold material cleaning tool according to claim 7, characterized in that: The tail of the fulcrum member (3) also has a screwing part (3-2).

9. The lever-type injection mold material cleaning tool according to claim 6, characterized in that: The front end of the fulcrum member (3) is also provided with a soft contact (3-3) for contacting the mold.

10. The lever-type injection mold material cleaning tool according to claim 6, characterized in that: The lever component (2) is a strip-shaped metal plate, and on one or both sides of the lever component (2) there are length scales (2-5) that can be used as a ruler.

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