Burr-proof movable insert structure of injection mold

Abstract

The utility model discloses an anti-burr movable insert structure of an injection mold, which relates to the technical field of mold inserts and comprises a lower mold, a mold plate is mounted on the inner side of the lower mold, a conical hole is formed in the mold plate in a penetrating manner, a positioning component is arranged on the inner side of the conical hole, an insert component is arranged at the top of the positioning component, and the insert component is arranged on the inner side of the lower mold. An adjusting assembly is arranged at the bottom of the template; the insert assembly comprises an insert body, the bottom of the insert body is fixedly connected with an insert column, and the bottom of the insert column is fixedly connected with a conical block. According to the burr-proof movable insert structure of the injection mold, when the insert body is mounted, the movable plate is driven to move through the worm and the worm gear, then the positioning seat is lifted and unfolded, and the insert column at the bottom of the insert body is placed in the positioning groove of the positioning seat, so that friction caused by direct contact between the insert column and the positioning groove is avoided, the mounting difficulty is effectively reduced, and meanwhile, the service life of the insert body is prolonged. And the burr problem caused by friction is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mold inserts, in particular to an anti-burr movable insert structure for an injection mold. Background Art

[0002] An insert in a mold specifically refers to an irregular mold fitting used for embedding in the mold, which plays a role in fixing the template and filling the space between templates, and helps to repair some defects of the mold. It has the following advantages: it is convenient to modify the mold, beneficial to the exhaust of the mold, convenient for the processing of the mold, and increases the service life of the mold.

[0003] In the prior art, as disclosed in Chinese Patent No.: CN221136718U, a mold insert positioning device is disclosed. It includes a lower mold, an insert is inserted in the middle of the lower mold, a gasket connected to the lower mold is sleeved at the bottom end of the insert and near the middle, a fixing rod passing through the lower mold and inserted at the bottom end of the insert is provided at the bottom end of the side of the lower mold, a through hole is provided in the middle of the lower mold, a rectangular insert block is provided at the bottom end of the insert, the bottom end of the insert is inserted inside the through hole of the lower mold, and the size of the bottom end of the insert is adapted to the through hole of the lower mold. By turning the fixing rod, when one end of the fixing rod drives the insert to move downward, it is inserted inside the insertion hole of the insert, so that the limiting plate of the insert drives the gasket to be compressed, the upper surface of the limiting plate of the insert is flush with the inner bottom end of the lower mold, and the insert is sealed with the lower mold, so that the insert is positioned and installed inside the lower mold, and the disassembly and assembly of the insert are relatively convenient.

[0004] Based on the above prior art, the current mold inserts still have the following problems. During the installation or disassembly process of the existing mold inserts, the positioning part of the insert will rub against the mold. On the one hand, the friction makes the installation and disassembly operations difficult. On the other hand, it will cause wear to the insert itself, resulting in burrs at the contact part. Therefore, the utility model provides an anti-burr movable insert structure for an injection mold. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides an anti-burr movable insert structure for an injection mold, which solves the problem that the positioning part of the insert will rub against the mold during the installation or disassembly process of the insert.

[0006] To achieve the above object, the utility model is realized by the following technical solutions: A flash prevention movable insert structure for an injection mold, including a lower mold, a template is installed inside the lower mold, a tapered hole is penetrated through the template, a positioning component is arranged inside the tapered hole, an insert component is arranged on the top of the positioning component, and an adjusting component is arranged at the bottom of the template; The insert component includes an insert body, an inserting column is fixedly connected to the bottom of the insert body, and a tapered block is fixedly connected to the bottom of the inserting column; The positioning component includes two positioning seats arranged inside the tapered hole, and positioning grooves are opened on the positioning seats.

[0007] Preferably, four positioning pins are fixedly connected to the outer wall of the inserting column, and the positioning pins are symmetrically distributed left and right.

[0008] Preferably, a tapered groove matching the tapered block is opened at the inner bottom of the positioning seat, and a limiting hole matching the positioning pin is opened on the inner wall of the positioning groove.

[0009] Preferably, two inclined rods are fixedly connected to the bottom of each positioning seat, and sliders are fixedly connected to the bottoms of the inclined rods.

[0010] Preferably, the adjusting component includes a fixing plate fixedly installed at the bottom of the template, an inclined hole matching the inclined rod is opened on the fixing plate, two guiding rods are fixedly connected to the bottom of the fixing plate, a movable plate is slidably arranged between the two guiding rods, and two sliding grooves matching the sliders are opened on the top of the movable plate.

[0011] Preferably, a threaded rod is rotatably installed at a position near the middle of the bottom of the fixing plate, the threaded rod threadedly penetrates through the top of the movable plate and extends downward, a worm gear is fixedly connected to the bottom end of the threaded rod, a worm is meshed with the outer surface of the worm gear, one end of the worm is rotatably installed on the inner wall of the rear side of the lower mold, and the other end of the worm movably penetrates through the inner wall of the front side of the lower mold and extends to the outside.

[0012] Beneficial effects

[0013] The utility model provides a flash prevention movable insert structure for an injection mold. Compared with the prior art, the following beneficial effects are achieved:

[0014] (1). In the flash prevention movable insert structure of the injection mold, when installing the insert body, the worm and the worm gear drive the movable plate to move, so that the positioning seat rises and unfolds, and the inserting column at the bottom of the insert body is placed in the positioning groove of the positioning seat, avoiding direct contact and friction between the inserting column and the positioning groove, effectively reducing the installation difficulty, and at the same time, reducing the flash problem caused by friction.

[0015] (2) The anti-burr movable insert structure of this injection mold. When the positioning seat moves obliquely downward and gathers for resetting, the positioning groove gradually clamps the inserted column, the positioning pin is inserted into the limit hole, and the tapered block is inserted into the tapered groove, performing multi-directional limiting on the inserted column to avoid the phenomenon of up-and-down shaking and left-and-right swinging of the inserted column, thereby ensuring the stability after the installation of the insert body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional external view schematic diagram of the present utility model;

[0017] Figure 2 It is a three-dimensional external view schematic diagram of the lower mold of the present utility model;

[0018] Figure 3 It is a three-dimensional external view schematic diagram of the insert assembly of the present utility model;

[0019] Figure 4 It is a partial structure schematic diagram of the present utility model;

[0020] Figure 5 It is a three-dimensional external view schematic diagram of the positioning assembly of the present utility model;

[0021] Figure 6 It is a three-dimensional external view schematic diagram of the adjustment assembly of the present utility model.

[0022] In the figure: 1. Lower mold; 11. Template; 12. Tapered hole; 2. Insert assembly; 21. Insert body; 22. Inserted column; 23. Tapered block; 24. Positioning pin; 3. Positioning assembly; 31. Positioning seat; 32. Positioning groove; 33. Limit hole; 34. Tapered groove; 35. Diagonal rod; 36. Slide block; 4. Adjustment assembly; 41. Fixed plate; 42. Guide rod; 43. Movable plate; 44. Chute; 45. Threaded rod; 46. Worm gear; 47. Worm; 48. Tapered hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0024] The present utility model provides two technical solutions:

[0025] Figures 1-6The first embodiment is shown: an anti-burr movable insert structure of an injection mold, including a lower mold 1. Inside the lower mold 1, a template 11 is installed. A tapered hole 12 is penetrated through the template 11. Inside the tapered hole 12, a positioning component 3 is provided. At the top of the positioning component 3, an insert component 2 is provided. At the bottom of the template 11, an adjusting component 4 is provided; the insert component 2 includes an insert body 21. At the bottom of the insert body 21, an insert column 22 is fixedly connected. At the bottom of the insert column 22, a tapered block 23 is fixedly connected; the positioning component 3 includes two positioning seats 31 arranged inside the tapered hole 12. On the positioning seats 31, positioning grooves 32 are opened.

[0026] Four positioning pins 24 are fixedly connected to the outer wall of the insert column 22, and the positioning pins 24 are symmetrically distributed left and right.

[0027] At the inner bottom of the positioning seat 31, a tapered groove 34 matching the tapered block 23 is opened. On the inner wall of the positioning groove 32, a limiting hole 33 matching the positioning pin 24 is opened. When installing the insert body 21, the tapered block 23 cooperates with the tapered groove 34, and the positioning pin 24 is embedded in the limiting hole 33, which can limit the insert column 22 and prevent the insert column 22 from shaking up and down and swinging left and right, making the installation of the insert body 21 more stable.

[0028] At the bottom of each positioning seat 31, two inclined rods 35 are fixedly connected, and at the bottom of the inclined rods 35, a slider 36 is fixedly connected. During the installation process of the insert body 21, through the movement of the slider 36 in the chute 44 and the sliding of the inclined rods 35 restricted by the inclined holes 48 on the fixed plate 41, the precise movement of the positioning seat 31 can be realized, ensuring that the positioning seat 31 moves stably and reliably during the rising and gathering reset processes.

[0029] Figures 1-6 The second embodiment is shown. The main difference from the first embodiment is that: the adjusting component 4 includes a fixed plate 41 fixedly installed at the bottom of the template 11. On the fixed plate 41, an inclined hole 48 matching the inclined rod 35 is opened. The inclined hole 48 provides a track and restriction for the sliding of the inclined rod 35, ensuring that the positioning seat 31 has a clear direction during the movement process, so that actions such as rising, expanding outward, and gathering reset can be accurately realized, guaranteeing the smooth progress of the installation process of the insert body 21. At the bottom of the fixed plate 41, two guiding rods 42 are fixedly connected, and the guiding rods 42 play a guiding and limiting role for the up and down movement of the movable plate 43. Between the two guiding rods 42, a movable plate 43 is slidably arranged. At the top of the movable plate 43, two chutes 44 matching the sliders 36 are opened, and the chutes 44 play a guiding and limiting role for the sliders 36.

[0030] A threaded rod 45 is rotatably installed at a position near the middle of the bottom of the fixed plate 41. The threaded rod 45 threadedly penetrates through the top of the movable plate 43 and extends downward. The bottom end of the threaded rod 45 is fixedly connected to a worm gear 46. The outer surface of the worm gear 46 is meshed with a worm 47. One end of the worm 47 is rotatably installed on the rear inner wall of the lower mold 1, and the other end of the worm 47 movably penetrates through the front inner wall of the lower mold 1 and extends to the outside. By rotating the worm 47, the worm gear 46 is driven to rotate, and then the threaded rod 45 rotates, realizing the up and down movement of the movable plate 43, so as to control the movement of the positioning seat 31. At the same time, the meshing connection between the worm 47 and the worm gear 46 has a self-locking function, which can keep the position of the movable plate 43 stable during the installation process, prevent the positioning seat 31 from moving accidentally, and ensure the accuracy and stability of the installation of the insert body 21.

[0031] At the same time, the content not described in detail in this specification belongs to the prior art well known to those skilled in the art.

[0032] When installing the insert body 21, first rotate the worm 47 to make the worm gear 46 rotate, driving the movable plate 43 to move upward. At the same time, the slider 36 arranged in the chute 44 is pushed upward, and the inclined rod 35 slides obliquely upward under the restriction of the inclined hole 48 on the fixed plate 41, so that when the two sides of the positioning seat 31 rise, they also expand outward. After the positioning seat 31 expands, the insert column 22 at the bottom of the insert body 21 is placed in the positioning groove 32 of the positioning seat 31, so that the two sides of the positioning pins 24 face the two sides of the limiting holes 33 respectively, and the conical block 23 is matched with the conical groove 34. Then, move the positioning seat 31 obliquely downward to gather and reset. When the two positioning seats 31 start to gather inward, the positioning groove 32 will gradually clamp the insert column 22, effectively avoiding the friction between the insert column 22 and the positioning groove 32, reducing the installation difficulty and solving the burr problem caused by friction. At the same time, the positioning pin 24 will be embedded in the limiting hole 33, and the conical block 23 will be embedded in the conical groove 34 to limit the insert column 22, avoiding the phenomenon of up and down shaking and left and right swinging of the insert column 22, so as to complete the installation of the insert body 21.

[0033] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0034] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An anti-burr movable insert structure for an injection mold, comprising a lower mold (1), and a template (11) is installed inside the lower mold (1), characterized in that: A tapered hole (12) is penetrated through the template (11), a positioning component (3) is arranged inside the tapered hole (12), an insert component (2) is arranged at the top of the positioning component (3), and an adjusting component (4) is arranged at the bottom of the template (11). The insert component (2) includes an insert body (21), an insert column (22) is fixedly connected to the bottom of the insert body (21), and a tapered block (23) is fixedly connected to the bottom of the insert column (22). The positioning component (3) includes two positioning seats (31) arranged inside the tapered hole (12), and a positioning groove (32) is formed in the positioning seat (31).

2. The anti-burr movable insert structure of an injection mold according to claim 1, characterized in that: Four positioning pins (24) are fixedly connected to the outer wall of the insert column (22), and the positioning pins (24) are symmetrically distributed left and right.

3. The anti-burr movable insert structure of an injection mold according to claim 2, characterized in that: A tapered groove (34) matched with the tapered block (23) is formed in the inner bottom of the positioning seat (31), and a limiting hole (33) matched with the positioning pin (24) is formed in the inner wall of the positioning groove (32).

4. The anti-burr movable insert structure of an injection mold according to claim 1, characterized in that: Two inclined rods (35) are fixedly connected to the bottom of each positioning seat (31), and a slider (36) is fixedly connected to the bottom of the inclined rod (35).

5. The anti-burr movable insert structure of an injection mold according to claim 4, characterized in that: The adjusting component (4) includes a fixing plate (41) fixedly installed at the bottom of the template (11), an inclined hole (48) matched with the inclined rod (35) is formed in the fixing plate (41), two guiding rods (42) are fixedly connected to the bottom of the fixing plate (41), a movable plate (43) is slidably arranged between the two guiding rods (42), and two sliding grooves (44) matched with the slider (36) are formed in the top of the movable plate (43).

6. The anti-burr movable insert structure of an injection mold according to claim 5, characterized in that: A threaded rod (45) is rotatably installed at a position near the middle of the bottom of the fixing plate (41), the threaded rod (45) threadedly penetrates through the top of the movable plate (43) and extends downward, a worm gear (46) is fixedly connected to the bottom end of the threaded rod (45), a worm (47) is meshed with the outer surface of the worm gear (46), one end of the worm (47) is rotatably installed on the rear inner wall of the lower mold (1), and the other end of the worm (47) movably penetrates through the front inner wall of the lower mold (1) and extends to the outside.

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