Collision-free secondary injection molding mold
By using a shift block and spring structure in the secondary injection molding mold, the slider is prevented from colliding with the injection molded product, solving the problem of slider damage during secondary molding, and improving the automation of the mold and product integrity.
Patent Information
- Application Number
- CN202422884009.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-26
AI Technical Summary
In existing secondary injection molding dies, the slider is prone to knocking against the processed product during secondary molding, causing damage.
A collision-free secondary injection molding mold is designed. The shift block and spring structure are used. The shift block is inserted into the slot of the slider to prevent the slider from moving. The inclined surface and the motion rod are used to push the slider away from the injection molded product to avoid collision.
During secondary molding, the slider does not collide with the finished injection molded product, which improves the automation level of the mold and the integrity of the product.
Smart Images
Figure CN223419961U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of injection molds, in particular to a collision-free secondary injection molding mold. Background Art
[0002] Injection molds are tools used to produce plastic products and give them a complete structure and precise dimensions. Injection molding is a process used for mass production of complex-shaped parts. Specifically, the heated, molten plastic is injected into the mold cavity under high pressure using an injection molding machine. After cooling and solidification, the resulting molded product is formed.
[0003] At present, traditional injection molds are mainly composed of an upper template, a lower template, a slider and an inclined column, wherein the upper template is provided with a pouring hole; the lower template is located below the upper template and has a groove on its top surface that is connected to the pouring hole, and the lower template is also provided with a slide groove that passes through the groove and the side; the slider slides in the slide groove and defines an injection cavity with the upper template and the groove and is provided with an inclined hole; the top of the inclined column is fixed to the bottom end of the upper template and can be tilted and inserted into the inclined hole to push the slider away from the groove to the slider. In actual application, moving the upper template up and down can synchronously link the slider to move closer to or away from the groove, reducing manual operation and improving the automation level of the injection mold; however, in the secondary injection mold, when the second molding requires the slider to be pushed into the product again, this process may damage the already processed product.
[0004] Therefore, it is an urgent problem for technical personnel in this field to design a secondary injection mold with a simple structure, easy operation, and the ability to keep the slider stationary when the mold is opened after primary molding and to be opened again after secondary molding. Utility Model Content
[0005] The utility model provides a collision-free secondary injection molding die, which solves the technical problem that a slider in the existing secondary injection molding die collides with an injection molded product.
[0006] The utility model provides a technical solution to the above-mentioned technical problems as follows: a collision-free secondary injection molding mold, further comprising: an upper template, a lower template, a first slider and a second slider, the upper template being provided with a first pouring hole and a second pouring hole; the lower template being located below the upper template and having a top surface provided with a first molding groove communicating with the first pouring hole and a second molding groove communicating with the second pouring hole, the top surface of the lower template being provided with a first slide groove and a second slide groove, the first slide groove passing through the first molding groove and the side of the lower template, the second slide groove passing through the second molding groove and the side of the lower template; the first slider slides in the first molding groove; the second slider slides in the second molding groove; comprising: a shift block, a spring and a motion rod,
[0007] The top surface of the second slider is provided with a slot; the top end of the shift block is fixed to the bottom end of the upper template and can be inserted into the slot when the second slider is close to the primary injection molded product, so as to avoid the second slider colliding with the primary injection molded product during secondary injection molding, and the lower side surface of the shift block away from the second molding groove is an inclined surface arranged from top to bottom in a direction away from the second molding groove; the spring is located in the slot and its bottom end is fixed to the bottom of the slot; the moving rod is arranged in a direction parallel to the inclined surface and is located in the slot, and the side wall of the moving rod is fixed to the top end of the spring and can slide in contact with the inclined surface, so as to push the second slider away from the secondary injection molded product after the shift block is pulled out of the slot.
[0008] The beneficial effects of the present invention are as follows: the structural design of the inclined column linked slider of the traditional injection mold is changed. During the secondary molding, the shift block fixed to the upper template is first directly inserted into the slot of the second slider to avoid moving the position of the second slider and prevent the second slider from bumping into the finished injection molded product; then the inclined surface of the upwardly moving shift block is used to shift the moving rod. Since the top end of the spring is fixed on the moving rod and the bottom end of the spring is fixed to the bottom of the plug-in slot in the second slider, the second slider can be pushed away from the finished secondary injection molded product, thereby improving the automation level of the secondary injection mold.
[0009] On the basis of the above technical solution, the present invention can also be improved as follows.
[0010] Furthermore, the shift block, the slot, the spring, and the motion rod are all arranged relatively in plurality.
[0011] Furthermore, a limiting groove is provided at the bottom of the slot; the spring is inserted into the limiting groove and its bottom end is fixed to the bottom of the limiting groove, and its top end extends out of the limiting groove.
[0012] A further beneficial effect of the above is that inserting the spring into the limiting groove can limit the expansion and contraction direction of the spring, thereby improving the movement stability and reliability of the motion rod.
[0013] Furthermore, it also includes a limit buckle and a limit pin, the limit buckle is fixed to the bottom of the second sliding groove; the limit pin is fixed to the bottom end of the second sliding block and can be buckled in the limit buckle.
[0014] A further beneficial effect of the above method is that the limit pin and the limit buckle are respectively fixed to the bottom of the second slide groove and the bottom end of the second slider. When the second slider moves to a certain position, the limit pin is buckled in the limit buckle, which can limit the sliding distance of the second slider.
[0015] Furthermore, it also includes a limit buckle and a limit pin, the limit buckle is fixed to the bottom end of the second slider; the limit buckle is fixed to the bottom of the second slide groove and can be buckled in the limit buckle.
[0016] A further beneficial effect of the above method is that the limit pin and the limit buckle are respectively fixed to the bottom end of the second slider and the bottom of the second slide groove. When the second slider moves to a certain position, the limit pin is buckled in the limit buckle, which can limit the sliding distance of the second slider.
[0017] Furthermore, the limiting buckle is a tiger buckle. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a shift block inserted into a second slider in a collision-free secondary injection molding mold of the present invention;
[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of a shift block, a spring and a motion rod in a collision-free secondary injection molding mold of the utility model;
[0020] Figure 3 This is a structural schematic diagram of a second slider, a limit pin and a limit buckle in a collision-free secondary injection molding mold of the utility model.
[0021] In the accompanying drawings, the components represented by the reference numerals are as follows:
[0022] 1. Second slider, 11. Slot, 2. Shift block, 21. Inclined surface, 3. Spring, 4. Movement rod, 5. Limit buckle, 6. Limit pin. DETAILED DESCRIPTION
[0023] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.
[0024] like Figure 1 and Figure 2 As shown, a collision-free secondary injection molding mold includes: an upper template, a lower template, a first slider and a second slider 1, the upper template is provided with a first pouring hole and a second pouring hole; the lower template is located below the upper template and its top surface is provided with a first molding groove communicating with the first pouring hole and a second molding groove communicating with the second pouring hole, the top surface of the lower template is provided with a first slide groove and a second slide groove, the first slide groove passes through the first molding groove and the side of the lower template, and the second slide groove passes through the second molding groove and the side of the lower template; the first slider slides in the first molding groove; the second slider 1 slides in the second molding groove; and further includes: a shift block 2, a spring 3 and a motion rod 4,
[0025] A slot 11 is provided on the top surface of the second slider 1; the top of the shift block 2 is fixed to the bottom end of the upper template and can be inserted into the slot 11 when the second slider 1 is close to the primary injection molded product, so as to avoid the second slider 1 from hitting the primary injection molded product during the secondary injection molding. The lower side surface of the shift block 2 away from the second molding groove is an inclined surface 21 arranged from top to bottom in a direction away from the second molding groove; the spring 3 is located in the slot 11 and its bottom end is fixed to the bottom of the slot 11; the moving rod 4 is arranged in a direction parallel to the inclined surface 21 and is located in the slot 11, and the side wall of the moving rod 4 is fixed to the top end of the spring 3 and can slide in contact with the inclined surface 21, so as to push the second slider 1 away from the secondary injection molded product after the shift block 2 is pulled out of the slot 11.
[0026] like Figure 2 As shown, in some specific embodiments, the shift block 2, the slot 11, the spring 3, and the motion rod 4 can be arranged in plurality relative to each other.
[0027] like Figure 2 As shown, in some specific embodiments, a limiting groove may be provided at the bottom of the slot 11; the spring 3 is inserted into the limiting groove with its bottom end fixed to the bottom of the limiting groove and its top end extending out of the limiting groove.
[0028] like Figure 3 As shown, in some specific embodiments, a limit buckle 5 and a limit pin 6 may also be included. The limit buckle 5 is fixed at the bottom of the second slide groove; the limit pin 6 is fixed at the bottom end of the second slider 1 and can be buckled in the limit buckle 5.
[0029] like Figure 3 As shown, in some specific embodiments, a limit buckle 5 and a limit pin 6 are also included. The limit buckle 5 is fixed to the bottom end of the second slider 1; the limit buckle 5 is fixed to the bottom of the second slide groove and can be buckled into the limit buckle 5.
[0030] Specifically, the limiting buckle 5 is a tiger buckle.
[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A collision-free secondary injection molding mold, comprising: An upper template, a lower template, a first sliding block and a second sliding block (1), wherein the upper template is provided with a first pouring hole and a second pouring hole; The lower template is located below the upper template and has a top surface provided with a first molding groove communicating with the first pouring hole and a second molding groove communicating with the second pouring hole. The top surface of the lower template is provided with a first slide groove and a second slide groove, the first slide groove passes through the first molding groove and the side of the lower template, and the second slide groove passes through the second molding groove and the side of the lower template; the first slider slides in the first molding groove; the second slider (1) slides in the second molding groove; and it is characterized in that it also includes: A shift block (2), the top surface of the second slider (1) is provided with a slot (11); the top end of the shift block (2) is fixed to the bottom end of the upper template and can be inserted into the slot (11) when the second slider (1) is in close contact with the primary injection molded product, so as to prevent the second slider (1) from bumping against the primary injection molded product during secondary injection molding; the lower side surface of the shift block (2) away from the second molding groove is an inclined surface (21) arranged in a direction away from the second molding groove from top to bottom; A spring (3), wherein the spring (3) is located in the slot (11) and a bottom end thereof is fixed to the bottom of the slot (11); A motion rod (4) is arranged in a direction parallel to the inclined surface (21) and is located in the slot (11); a side wall of the motion rod (4) is fixed to the top end of the spring (3) and can be in sliding contact with the inclined surface (21) so as to push the second slider (1) away from the secondary injection molded product after the shift block (2) is pulled out of the slot (11).
2. The collision-free secondary injection molding mold according to claim 1, characterized in that: The shift block (2), the slot (11), the spring (3), and the motion rod (4) are all arranged in a plurality relative to each other.
3. The collision-free secondary injection molding die according to claim 1, characterized in that: A limiting groove is provided at the bottom of the slot (11); the spring (3) is inserted into the limiting groove and its bottom end is fixed to the bottom of the limiting groove, while its top end extends out of the limiting groove.
4. The collision-free secondary injection molding die according to claim 1, characterized in that: It also includes a limit buckle (5) and a limit pin (6), wherein the limit buckle (5) is fixed to the bottom of the second sliding groove; the limit pin (6) is fixed to the bottom end of the second sliding block (1) and can be buckled in the limit buckle (5).
5. The collision-free secondary injection molding die according to claim 1, characterized in that: It also includes a limiting buckle (5) and a limiting pin (6), wherein the limiting buckle (5) is fixed to the bottom end of the second sliding block (1); the limiting buckle (5) is fixed to the bottom of the second sliding groove and can be buckled into the limiting buckle (5).