Insert fixing device of injection mold

Abstract

The utility model relates to the technical field of injection molds, and discloses an insert fixing device of an injection mold, which comprises a mold plate, an accommodating groove is arranged on the mold plate, and an insert is arranged in the accommodating groove; the fixing assembly comprises a first fixing structure and a second fixing structure which are detachably arranged on the template, the first fixing structure is provided with an elastic piece extending into the containing groove, and the second fixing structure is provided with a movable piece movably extending into the containing groove; the movable part is provided with a first moving position and a second moving position, when the movable part is located at the first moving position, the elastic part and the movable part abut against the insert respectively, and when the movable part is located at the second moving position, the elastic part abuts against the insert, and the movable part is separated from the insert. The insert fixing device of the injection mold, provided by the utility model, has double positioning and fixing mechanisms and is simple in structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, and particularly relates to an insert fixing device for an injection mold. Background Art

[0002] In the injection mold industry, inserts are key mold components. Their primary function is to form fine features such as holes, bosses, and other complex geometric shapes during the injection molding process. The positioning accuracy of inserts directly impacts final product quality and production efficiency. Traditionally, inserts are fixed by embedding them into the core of the mold and using a core-pulling mechanism to position and secure them, maintaining stability and accurate positioning under high-pressure injection molding conditions. However, this traditional method has significant practical drawbacks: when the mold completes the injection molding process and enters the mold opening phase, the core-pulling mechanism performs a core-pulling action, causing the insert to momentarily lose its lateral support, making it susceptible to displacement or even complete fallout. This phenomenon not only severely impacts the molding accuracy of subsequent products and increases the defective rate, but frequent insert fallout can also cause physical damage to the mold, increasing repair costs and extending downtime, thereby reducing overall production efficiency. Utility Model Content

[0003] The purpose of the utility model is to solve the above problems in the prior art and to provide an insert fixing device for an injection mold with a dual positioning and fixing mechanism and a simple structure.

[0004] The purpose of the utility model can be achieved through the following technical solutions: an insert fixing device for an injection mold, comprising:

[0005] A template, wherein the template is provided with a receiving groove, and an insert is provided in the receiving groove;

[0006] A fixing assembly, the fixing assembly includes a first fixing structure and a second fixing structure detachably provided on the template, the first fixing structure having an elastic member extending into the accommodating groove, the second fixing structure having a movable member movably extending into the accommodating groove, and the movable member having a first moving position and a second moving position, when the movable member is in the first moving position, the elastic member and the movable member respectively abut against the insert, and when the movable member is in the second moving position, the elastic member abuts against the insert, and the movable member is separated from the insert.

[0007] In the above-mentioned insert fixing device of an injection mold, the elastic part includes a fixing part detachably provided on the template, and an elastic part connected to the fixing part and extending into the accommodating groove. When the insert is in the accommodating groove, the elastic part abuts against the insert and applies elastic force to the insert.

[0008] In the above-mentioned insert fixing device for an injection mold, the fixing portion is a hollow structure, and the elastic portion is arranged inside the fixing portion and protrudes outside the fixing portion.

[0009] In the above-mentioned insert fixing device for an injection mold, the elastic part is a ball, and a spring is provided between the elastic part and the inner wall of the fixing part.

[0010] In the above-mentioned insert fixing device of an injection mold, the template includes a mold frame and a mold core arranged in the mold frame, the accommodating groove is arranged on the mold core, the mold core is provided with a threaded hole connected to the accommodating groove, and the fixing part has a thread connected to the threaded hole.

[0011] In the above-mentioned insert fixing device of an injection mold, a first connecting hole for the movable part to pass through is provided on the mold core, and the first connecting hole is connected to the accommodating groove. When the movable part abuts against the insert, the movable part applies a thrust to the insert, and the thrust is greater than the elastic force.

[0012] In the above-mentioned insert fixing device of an injection mold, the second fixing structure includes a fixing seat detachably arranged on the mold frame, the movable part is movably arranged on the fixing seat, and a second connecting hole is provided on the fixing seat for the movable part to pass through, and the second connecting hole is coaxial with the first connecting hole.

[0013] In the above-mentioned insert fixing device for an injection mold, the second fixing structure further includes a driving rod connected to the movable member, for driving the movable member to move along the second connecting hole between the first moving position and the second moving position.

[0014] In the above-mentioned insert fixing device of an injection mold, the first fixing structure also includes a first locking piece detachably provided on the fixing seat, the first locking piece is coaxial with the fixing part, and extends into the threaded hole to form abutment with the fixing part, and the fixing seat is provided with a third connecting hole detachably connected to the first locking piece.

[0015] In the above-mentioned insert fixing device of an injection mold, a limiting groove is also provided on the movable part, and a second locking part is provided on the mold frame which can movably extend into the limiting groove. When the second locking part extends into the limiting groove, the movement of the movable part can be restricted.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: by providing the first fixing structure and the second fixing structure on the template, the first fixing structure has an elastic part extending into the accommodating groove, and the second fixing structure has a movable part movably extending into the accommodating groove, and when the movable part is in the first position, the elastic part and the movable part respectively abut against the insert, and when the movable part is in the second position, the elastic part abuts against the insert, and the movable part is separated from the insert; thereby, a double fixing mechanism is realized, which can provide stable positioning for the insert during the injection molding process on the one hand, and continuously support the insert through the elastic part when the mold is opened, thereby avoiding loosening or falling off of the insert, and also avoiding interference when the insert is pulled out, effectively ensuring product quality and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an exploded view of the insert fixing device according to an embodiment of the present invention.

[0018] Figure 2 This is a cross-sectional view of an insert fixing device according to an embodiment of the present invention.

[0019] Figure 3 This is an exploded view of the local structure of the insert fixing device according to an embodiment of the present utility model.

[0020] Figure 4 Schematic diagram of the internal structure of the elastic member in the embodiment of the present utility model.

[0021] In all the drawings, the same figure marks represent the same technical features, specifically: 100, template; 110, mold frame; 120, mold core; 121, accommodating groove; 122, threaded hole; 123, first connecting hole; 200, insert; 300, first fixing structure; 310, elastic member; 311, fixing part; 312, elastic part; 313, spring; 320, first locking member; 400, second fixing structure; 410, movable member; 411, limiting groove; 420, fixing seat; 421, second connecting hole; 422, third connecting hole; 430, driving rod; 440, second locking member. DETAILED DESCRIPTION

[0022] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0023] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] like Figures 1 to 4 As shown, an insert fixing device for an injection mold includes a template 100, an insert 200, a first fixing structure 300 and a second fixing structure 400.

[0025] like Figures 1 to 4 As shown, an insert fixing device for an injection mold includes:

[0026] The template 100 is provided with a receiving groove 121, and the receiving groove 121 is provided with an insert 200;

[0027] A fixing assembly includes a first fixing structure 300 and a second fixing structure 400 detachably provided on the template 100, the first fixing structure 300 having an elastic member 310 extending into the accommodating groove 121, the second fixing structure 400 having a movable member 410 movably extending into the accommodating groove 121, and the movable member 410 has a first moving position and a second moving position, when the movable member 410 is in the first moving position, the elastic member 310 and the movable member 410 respectively abut against the insert 200, and when the movable member 410 is in the second moving position, the elastic member 310 abuts against the insert 200, and the movable member 410 is separated from the insert 200. By using the elastic member 310 and the movable member 410 in conjunction with each other, a dual fixing mechanism is realized. On the one hand, it can provide stable positioning for the insert 200 during the injection molding process. On the other hand, the elastic member 310 can provide continuous support for the insert 200 when the mold is opened, thereby avoiding the insert 200 from loosening or falling off. At the same time, it also avoids interference when the insert 200 is pulled out, effectively ensuring product quality and production efficiency.

[0028] Specifically, if Figures 1 to 4 As shown, in this embodiment, the template 100 includes a rectangular mold frame 110 and a mold core 120 embedded in the mold frame 110. The mold core 120 is provided with a receiving groove 121, and an insert 200 is provided in the receiving groove 121 to meet the special requirements of product molding.

[0029] In order to achieve accurate positioning and fixation of the insert 200, in this embodiment, a fixing assembly is provided, which includes a first fixing structure 300 detachably provided on the mold core 120, and a second fixing structure 400 detachably provided on the mold frame 110, the first fixing structure 300 having an elastic member 310 horizontally extending into the receiving groove 121, and the second fixing structure 400 having a movable member 410 movably extending horizontally into the receiving groove 121, and the movable member 410 has a first movable position. When the movable member 410 is in the first moving position, the elastic member 310 and the movable member 410 respectively abut against the surface of the insert 200 to doubly fix the insert 200. When the movable member 410 is in the second moving position, the elastic member 310 abuts against the insert 200, and the movable member 410 is separated from the insert 200 to reduce the direct force on the insert 200, thereby avoiding interference with the withdrawal of the insert 200 while preventing the insert 200 from losing its supporting force.

[0030] It is worth noting that in this embodiment, after the insert 200 is placed in the receiving groove 121, the elastic part 310 can initially position and fix it, and then position and fix it for the second time through the movement of the movable part 410, which effectively improves the positioning accuracy and positioning efficiency of the insert 200, and at the same time ensures the stability of the insert 200 during the injection molding process.

[0031] In this embodiment, the elastic member 310 includes a fixing portion 311 detachably mounted on the mold core 120, and an elastic portion 312 connected to the fixing portion 311 and raised into the receiving groove 121. When the insert 200 is within the receiving groove 121, the elastic portion 312 abuts against the insert 200 and applies an elastic force to the insert 200, thereby positioning and securing the insert 200. The design of the elastic portion 312 can provide a continuous preload force for the insert 200, thereby enhancing the stability of the insert 200 during the injection molding process and reducing displacement caused by pressure changes.

[0032] In this embodiment, the fixing portion 311 is a cylindrical hollow structure, and the elastic portion 312 is disposed inside the fixing portion 311 and protrudes outside the fixing portion 311. The fixing portion 311 provides an effective movable space for the elastic portion 312, ensuring the stability and elastic recovery ability of the elastic member 310.

[0033] In this embodiment, the elastic portion 312 is a ball bearing, and a spring 313 is disposed between the elastic portion 312 and the inner wall of the fixing portion 311. The combination of the ball bearing and the spring 313 ensures rapid response and precise positioning of the elastic portion 312, while also enhancing the restoring force of the elastic portion 312 through the spring 313, thereby extending the service life of the elastic member 310. Furthermore, the ball bearing design reduces friction with the surface of the insert 200, thereby minimizing damage to the insert 200.

[0034] To secure the elastic member 310, in this embodiment, the mold core 120 is provided with a threaded hole 122 that communicates with the receiving groove 121. This allows the elastic member 310 to be inserted into the receiving groove 121. Furthermore, the outer wall of the fixing portion 311 has threads that connect to the threaded hole 122. This allows for quick assembly and disassembly of the elastic member 310 while ensuring a tight and stable connection.

[0035] In this embodiment, the mold core 120 is further provided with a circular first connecting hole 123 for the movable member 410 to pass through. The first connecting hole 123 is connected to the receiving groove 121. When the movable member 410 abuts the insert 200, the movable member 410 applies a thrust to the insert 200, and this thrust is greater than the elastic force applied by the elastic member 310 to the insert 200, thereby enabling the movable member 410 to pass through the mold core 120 and abut against the insert 200, effectively ensuring the stability of the fixation of the insert 200. In particular, this elastic force is less than the pulling force when the insert 200 is withdrawn outward by the driving member, effectively preventing the elastic member 310 from interfering with the withdrawal of the insert 200.

[0036] In this embodiment, the movable member 410 is a core-pulling slider, which is horizontally arranged and sequentially passes through the first connecting hole 123 and the second connecting hole 123 and extends into the receiving groove 121.

[0037] In this embodiment, the second fixing structure 400 includes a fixing base 420 detachably mounted on the mold frame 110. The movable member 410 is movably mounted on the fixing base 420. The fixing base 420 is provided with a second connecting hole 421 through which the movable member 410 passes. The second connecting hole 421 is coaxial with the first connecting hole 123. The detachable design of the fixing base 420 can meet the installation requirements of different molds and enhance the versatility of the device. The coaxial arrangement of the second connecting hole 421 and the first connecting hole 123 ensures the precise positioning and smooth movement of the movable member 410, improving the adaptability and operational convenience of the device.

[0038] Preferably, in this embodiment, the fixing seat 420 and the mold frame 110 are threadedly connected by bolts, and the second connection hole 421 is a rectangular hole, which effectively simplifies the overall structure of the device and facilitates installation.

[0039] In this embodiment, the second fixed structure 400 further includes a drive rod 430 connected to the movable member 410. The drive rod 430 serves as the output end of the power source, driving the movable member 410 to move along the second connection hole 421 between the first and second positions. This enables the movable member 410 to quickly switch between different positions, improving the automation level of the device, reducing manual intervention, and accelerating production cycles.

[0040] In this embodiment, the movable member 410 is further provided with a limiting groove 411, and the mold frame 110 is provided with a second locking member 440 that is movably inserted into the limiting groove 411. When the second locking member 440 is inserted into the limiting groove 411, the movement of the movable member 410 is restricted. The cooperation between the second locking member 440 and the limiting groove 411 provides an additional locking mechanism that effectively restricts the movement of the movable member 410 even in the non-operating state, thereby preventing equipment failure due to misoperation and enhancing the reliability and safety of the device.

[0041] Preferably, in this embodiment, the limiting groove 411 is an inclined rectangular groove, and the second locking member 440 includes a vertical portion and a bending portion, and the bending direction of the bending portion is consistent with the inclined direction of the rectangular groove to achieve effective limiting of the movable member 410.

[0042] To further enhance the stability of the elastic member 310, in this embodiment, the first fixing structure 300 further includes a first locking member 320 detachably mounted on the fixing seat 420. The first locking member 320 is coaxial with the fixing portion 311 and extends into the threaded hole 122 to abut against the fixing portion 311. Furthermore, the fixing seat 420 is provided with a third connecting hole 422 that is detachably connected to the first locking member 320. The coaxial abutment between the first locking member 320 and the fixing portion 311 effectively prevents loosening of the elastic member 310 due to vibration or temperature fluctuations, thereby ensuring the long-term stable operation of the device.

[0043] Preferably, in this embodiment, the first locking member 320 is a screw, the third connection hole 422 is a threaded hole, and one end of the first locking member 320 away from the fixing portion 311 is connected to the third connection hole 422 to form a threaded connection.

[0044] It should be noted that, in the present utility model, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly defined. The terms "connected", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integrated 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 the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0045] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0046] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A block fixing device for an injection mold, characterized in that: include: A template, wherein the template is provided with a receiving groove, and an insert is provided in the receiving groove; A fixing assembly, the fixing assembly includes a first fixing structure and a second fixing structure detachably provided on the template, the first fixing structure having an elastic member extending into the accommodating groove, the second fixing structure having a movable member movably extending into the accommodating groove, and the movable member having a first moving position and a second moving position, when the movable member is in the first moving position, the elastic member and the movable member respectively abut against the insert, and when the movable member is in the second moving position, the elastic member abuts against the insert, and the movable member is separated from the insert.

2. The insert fixing device of an injection mold according to claim 1, characterized in that: The elastic member includes a fixing portion detachably provided on the template, and an elastic portion connected to the fixing portion and extending into the receiving groove. When the insert is in the receiving groove, the elastic portion abuts against the insert and applies elastic force to the insert.

3. The insert fixing device of an injection mold according to claim 2, characterized in that: The fixing portion is a hollow structure, and the elastic portion is arranged inside the fixing portion and protrudes out of the fixing portion.

4. The insert fixing device for an injection mold according to claim 3, characterized in that: The elastic part is a ball, and a spring is provided between the elastic part and the inner wall of the fixing part.

5. The insert fixing device for an injection mold according to claim 2, characterized in that: The template includes a mold frame and a mold core arranged in the mold frame, the accommodating groove is arranged on the mold core, the mold core is provided with a threaded hole communicating with the accommodating groove, and the fixing part has a thread connected to the threaded hole.

6. The insert fixing device for an injection mold according to claim 5, characterized in that: The mold core is provided with a first connecting hole for the movable part to pass through, and the first connecting hole is connected to the accommodating groove. When the movable part abuts against the insert, the movable part applies a thrust to the insert, and the thrust is greater than the elastic force.

7. The insert fixing device for an injection mold according to claim 6, characterized in that: The second fixing structure includes a fixing seat detachably provided on the mold frame, the movable member is movably provided on the fixing seat, a second connecting hole for the movable member to pass through is provided on the fixing seat, and the second connecting hole is coaxial with the first connecting hole.

8. The insert fixing device for an injection mold according to claim 7, characterized in that: The second fixing structure further includes a driving rod connected to the movable member, for driving the movable member to move along the second connecting hole between the first moving position and the second moving position.

9. The insert fixing device for an injection mold according to claim 7, characterized in that: The first fixing structure also includes a first locking member detachably provided on the fixing seat, the first locking member is coaxial with the fixing portion, and extends into the threaded hole to form abutment with the fixing portion, and the fixing seat is provided with a third connecting hole detachably connected to the first locking member.

10. The insert fixing device for an injection mold according to claim 7, characterized in that: The movable part is further provided with a limiting groove, and the mold frame is provided with a second locking part which can movably extend into the limiting groove. When the second locking part extends into the limiting groove, the movable part can be restricted from moving.

Images