A tool for extracting a built-up mould
Patent Information
- Application Number
- CN202522526943.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-11-28
AI Technical Summary
[0003]现有技术中,取出组配模具一般通过手工敲击方式主要通过操作人员手持榔头、扳手等普通工具,对模仁边缘或预留部位施加冲击力,以突破模仁与模具主体的配合阻力,但需要操作人员需持续施加较大作用力,长时间作业后易出现手部肌肉疲劳、关节劳损等问题,不仅降低作业效率,还存在工具滑落导致人身伤害的安全隐患
通过设置的圆棒,在圆棒两侧设置的安装头可安装顶出头,使顶出头与模具的对应部位对接,圆棒作为主体骨架,保证了工具整体的结构强度,能承受撞击过程中的作用力而不易变形;滑动设置于主体中部的圆柄,通过来回撞击的方式可产生集中且可控的冲击力,相比传统手工敲击或借助普通工具,既能突破模具间的配合阻力,又能避免因施力不均导致模具损伤或操作人员手部疲劳,提升了模具取出的效率。
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Figure CN224867728U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of assembly mold technology, and in particular relates to a tool for removing assembly molds. Background Technology
[0002] The tool used to remove assembled molds is not a single type, but a combination of tools. The specific tools used depend on the type, size, structure of the mold, and the reason for the jamming. "Assembled molds" usually refer to molds composed of multiple modules (such as cores, cavities, sliders, and ejector pins), commonly found in injection molds and die-casting molds. For example, pry bars are the most basic and important tools; they are used to separate the A-plate and B-plate (moving mold and fixed mold) of the mold, or to pry open jammed sliders, ejector plates, etc., using the lever principle to generate a huge separating force. Different lengths and thicknesses of pry bars are selected according to the size of the mold, and it is best to have both flat and V-shaped heads to accommodate different gaps.
[0003] In existing technologies, removing assembly molds is generally done manually by striking the edge or pre-reserved area of the mold core with common tools such as hammers and wrenches to overcome the resistance between the mold core and the mold body. However, this requires the operator to continuously apply a large force, which can easily lead to hand muscle fatigue and joint strain after long-term operation. This not only reduces work efficiency but also poses a safety hazard of tools slipping and causing personal injury. Utility Model Content
[0004] The purpose of this utility model is to address the aforementioned technical problems by providing a tool for removing assembly molds.
[0005] A tool for removing an assembled mold includes: two mounting heads and a round bar. The two mounting heads are respectively disposed on both sides of the round bar. A round handle is sleeved on the outer periphery of the round bar. The two mounting heads and the round bar are connected to each other to form a tool body. The round handle is slidably disposed in the middle of the tool body. The mounting heads are used to connect to the ejector heads that insert the mold core. The mold can be removed by the round handle striking the mounting heads back and forth.
[0006] Furthermore, each of the two mounting heads has a threaded hole on one side, and a push-out head is provided on one side of the mounting head. The push-out head is spirally connected to the threaded hole, which facilitates disassembly and replacement of the push-out head.
[0007] Furthermore, the mounting head and the round bar are integrally formed by welding.
[0008] Furthermore, both sides of the round handle are concave towards the center, and the radius of the arc of the concave part of the round handle is adapted to the curvature of the operator's hand grip.
[0009] Furthermore, a circular hole is provided on one side of the circular handle, through which the circular rod moves and passes, and the circular handle is slidably disposed on the outer periphery of the circular rod via the circular hole.
[0010] Furthermore, the diameter of the circular hole is smaller than the outer diameter of the mounting head.
[0011] Furthermore, both the mounting head and the round handle are integrally formed from tungsten steel.
[0012] Compared with the prior art, the tool for removing assembly molds according to this utility model has the following advantages: The round bar, with mounting heads on both sides, allows for the installation of ejector heads, which then align with corresponding parts of the mold. The round bar, acting as the main frame, ensures the overall structural strength of the tool, enabling it to withstand impact forces without easily deforming. The round handle, slidably positioned in the middle of the main body, generates concentrated and controllable impact force through back-and-forth striking. Compared to traditional manual hammering or the use of ordinary tools, this overcomes the resistance between mold parts and avoids mold damage or operator fatigue due to uneven force application, thus improving mold removal efficiency. Attached Figure Description
[0013] Figure 1 This is an overall schematic diagram of the present invention; Figure 2 This is a schematic diagram of the ejector head installation of this utility model; The markings in the diagram are as follows: 1. Mounting head; 2. Round bar; 3. Round shank; 4. Tool body; 5. Threaded hole; 6. Round hole; 7. Ejector head. Detailed Implementation
[0014] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0015] It should be noted that all directional and positional terms used in this utility model, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connection arrangements between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.
[0016] In the description of this utility model, 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; 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.
[0017] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0018] Reference Figure 1 and Figure 2 A tool for removing an assembled mold includes: two mounting heads 1 and a round bar 2. The two mounting heads 1 are respectively disposed on both sides of the round bar 2. A round handle 3 is sleeved on the outer periphery of the round bar 2. The two mounting heads 1 and the round bar 2 are connected to each other to form a tool body 4. The mounting heads 1 are used to connect to an ejector head 7 for inserting the mold core. The mold can be removed by the round handle 3 striking the mounting heads 1 back and forth.
[0019] In use, the device uses a round bar 2 with mounting heads 1 on both sides to install ejector heads 7, allowing the ejector heads 7 to align with the corresponding parts of the mold. The round bar 2 serves as the main frame, ensuring the overall structural strength of the tool and enabling it to withstand the force during impact without easily deforming. The round handle 3, which slides in the middle of the main body, generates concentrated and controllable impact force through back-and-forth impacts. Compared to traditional manual hammering or using ordinary tools, this method can overcome the resistance between molds and avoid mold damage or operator fatigue caused by uneven force application, thus improving the efficiency of mold removal.
[0020] In the example of this application, each of the two mounting heads 1 has a threaded hole 5 on one side, and a push-out head 7 is provided on one side of the mounting head 1. The push-out head 7 is spirally connected to the threaded hole 5, which facilitates disassembly and replacement of the push-out head 7.
[0021] As a preferred example of this utility model, for assembled molds of different specifications, models, or structures, it is not necessary to replace the entire tool. Only the ejector head 7 of the appropriate size, shape, or material needs to be replaced to meet diverse mold removal requirements, thereby reducing the cost of tool use and inventory management. When the ejector head 7 is worn, deformed, or damaged during long-term use, only the ejector head 7 needs to be replaced, without scrapping the entire tool body 4, thus extending the service life of the tool body 4 and improving resource utilization.
[0022] In the example of this application, the mounting head 1 and the round bar 2 are integrally formed by welding.
[0023] As a preferred example of this utility model, the integrated welding structure eliminates the connection gap and loosening risk between the mounting head 1 and the round bar 2, making the tool body 4 a complete force-bearing unit. When the round handle 3 impacts and applies force, the force can be evenly and stably transmitted from the round bar 2 to the mounting head 1, and then applied to the mold. This avoids tool failure due to breakage or loosening of the connection part under stress, and improves the structural strength of the tool body 4.
[0024] In the example of this application, both sides of the round handle 3 are concave towards the middle, and the radius of the arc of the concave part of the round handle 3 is adapted to the arc of the operator's hand grip.
[0025] As a preferred example of this utility model, the concave design that conforms to the curvature of the hand allows the operator's palm to form a larger contact area with the round handle 3, dispersing the pressure on the hand and avoiding local pressure pain and fatigue when holding for a long time or repeatedly impacting the hand. This effectively reduces the operator's labor intensity and improves work comfort. Secondly, the concave structure can play a certain role in limiting the operator's hand. When sliding the round handle 3 back and forth for impact operation, it can prevent the hand from slipping off the round handle 3 due to force or inertia, reducing the risk of safety accidents caused by the tool going out of control due to hand slippage.
[0026] In the example of this application, a circular hole 6 is provided on one side of the circular handle 3, the circular rod 2 moves through the circular hole 6, and the circular handle 3 is slidably disposed on the outer periphery of the circular rod 2 through the circular hole 6.
[0027] As a preferred example of this utility model, the cooperation between the round hole 6 and the round bar 2 provides a stable sliding guide for the round handle 3, ensuring that the round handle 3 can only slide back and forth along the axial direction of the round bar 2, avoiding the round handle 3 from deviating, shaking or getting stuck during the sliding process, ensuring that the impact force can be accurately applied to the tool body 4, and then stably transmitted to the mold, thereby improving the stability and reliability of the operation.
[0028] In the example of this application, the diameter of the circular hole 6 is smaller than the outer diameter of the mounting head 1.
[0029] As a preferred example of this utility model, this size design effectively prevents the round handle 3 from slipping off the tool body 4 during the sliding process along the round bar 2. This is because when the round handle 3 slides to a position close to the mounting head 1, the mounting head 1 will block the round handle 3, preventing the round handle 3 from detaching from the round bar 2 and causing the tool to become unusable, or causing safety hazards (such as injuring operators or damaging surrounding equipment) due to the round handle 3 slipping off. Secondly, by limiting the round handle 3 with the mounting head 1, it can be ensured that the round handle 3 always slides in the middle area of the tool body 4, ensuring that the force of the round handle 3 when it impacts can be concentrated on the key force-bearing parts of the tool body 4, and avoiding the force dispersion caused by the round handle 3 sliding beyond the effective range, which would affect the mold removal efficiency.
[0030] In the example of this application, both the mounting head 1 and the round handle 3 are integrally formed from tungsten steel.
[0031] As a preferred example of this utility model, tungsten steel has excellent hardness, wear resistance, impact resistance and corrosion resistance. It can withstand the frequent impact force, friction force and possible environmental corrosion during the mold removal process, avoid deformation, wear or corrosion of the mounting head 1 and the round shank 3, and extend the service life of the tool.
[0032] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A tool for removing an assembly mold, characterized in that, include: Two mounting heads (1) and a round bar (2) are provided. The two mounting heads (1) are respectively located on both sides of the round bar (2). A round handle (3) is sleeved on the outer periphery of the round bar (2). The two mounting heads (1) and the round bar (2) are connected to each other to form a tool body (4). The round handle (3) is slidably located in the middle of the tool body (4). The mounting head is used to connect to the ejector head (7) of the mold core. The mold can be removed by the round handle (3) striking the mounting head (1) back and forth.
2. The tool for removing assembly molds according to claim 1, characterized in that, Both mounting heads (1) have threaded holes (5) on one side, and a push-out head (7) is provided on one side of the mounting head (1). The push-out head (7) is spirally connected to the threaded hole (5) for easy disassembly and replacement of the push-out head.
3. The tool for removing the assembly mold according to claim 1, characterized in that, The mounting head (1) and the round bar (2) are integrally formed by welding.
4. The tool for removing the assembly mold according to claim 1, characterized in that, Both sides of the round handle (3) are concave towards the middle, and the radius of the arc of the concave part of the round handle (3) is adapted to the arc of the operator's hand grip.
5. A tool for removing an assembly mold according to claim 1, characterized in that, A circular hole (6) is provided on one side of the circular handle (3), the circular rod (2) moves through the circular hole (6), and the circular handle (3) is slidably disposed on the outer periphery of the circular rod (2) through the circular hole (6).
6. A tool for removing an assembly mold according to claim 5, characterized in that, The diameter of the circular hole (6) is smaller than the outer diameter of the mounting head (1).
7. The tool for removing an assembly mold according to claim 1, characterized in that, Both the mounting head (1) and the round handle (3) are integrally formed from tungsten steel.