Wire holder injection mold

Abstract

The wire holder injection mold is applied to the field of molds and comprises an upper mold body and a lower mold body, a plurality of upper cavities matched with upper supports are formed in the face, facing the lower mold body, of the upper mold body, and a plurality of lower cavities matched with lower bases are formed in the face, facing the upper mold body, of the lower mold body. The upper cavities are connected with the corresponding lower cavities to form a plurality of cavities, inserting rods are arranged between the adjacent cavities, the inserting rods are all arranged in the lower mold and connected with the lower mold in a sliding mode, and a driving unit used for driving the inserting rods to slide synchronously is arranged on the lower mold. The mold has the technical effects that the upper mold is far away from the lower mold, and the insertion rod synchronously slides in the direction far away from the mold cavities along with movement of the upper mold through the driving unit until the insertion rod is separated from the space between the two mold cavities, so that limitation of the insertion rod to the lower cavity is reduced, and a lower base subjected to injection molding in the lower cavity is convenient to demold; after the upper die leaves the lower die, the upper support is exposed, so that the finished wire holder can be taken out conveniently, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of molds, and in particular to an injection mold for a terminal block. Background Art

[0002] An injection mold is an important tool for producing plastic products. It injects molten plastic material into the mold and, through processes such as pressurization and cooling, finally forms plastic products of the required shape.

[0003] When producing a terminal block, it is usually integrally injection-molded using a mold. Referring to Figure 1 , the terminal block includes a lower base 21 and an upper support 22. In the existing related technology, an injection groove matching the lower base 21 is opened in the mold, and injection liquid is injected into the injection groove. After the injection liquid solidifies and forms, the finished terminal block is taken out.

[0004] In the above injection method during use, the lower base is tightly fitted in the injection groove, and it is not convenient to take out the finished terminal block, resulting in low production efficiency. Summary of the Invention

[0005] In order to help solve the problem that in the related technology, in the use of an injection mold for a terminal block, it is difficult to demold the lower base, and it is not convenient to take out the finished terminal block, resulting in low production efficiency, an injection mold for a terminal block provided by this application adopts the following technical solutions: It includes an upper mold and a lower mold. On the surface of the upper mold facing the lower mold, several upper cavities matching the upper support are opened. On the surface of the lower mold facing the upper mold, several lower cavities matching the lower base are opened. The several upper cavities are connected to the corresponding several lower cavities to form several cavities. Between adjacent cavities, there are inserted rods. The several inserted rods are all arranged in the lower mold and are slidably connected to the lower mold. A driving unit for driving the several inserted rods to slide synchronously is provided on the lower mold.

[0006] In a specific feasible implementation, the driving unit includes an inclined column arranged on the upper mold. On the surface of the lower mold facing the upper mold, a sliding groove is opened. A slider is slidably connected in the sliding groove. The several inserted rods are arranged on the slider. On the surface of the slider facing the upper mold, an inclined hole matching the inclined column is opened. The inclined column passes through the inclined hole. A first limiting component for limiting the position of the slider in the length direction is provided in the sliding groove, and a second limiting component for limiting the position of the slider in the width direction is provided on the upper mold.

[0007] In a specific feasible implementation, the first limiting component includes two limiting seats arranged on the lower mold. The slider is located between the two limiting seats and is in contact with the two limiting seats respectively.

[0008] In a specific feasible embodiment, the second limiting component includes a plug-in block arranged on the upper mold facing the lower mold surface, an inclined block is arranged on the surface of the slider facing away from the cavity, an inclined groove matching the inclined block is opened on the surface of the plug-in block facing the cavity, and the inclined block is inserted into the inclined groove.

[0009] In a specific feasible embodiment, a buffer pad is arranged on the surface of the inclined block facing the inclined groove, and the buffer pad abuts between the plug-in block and the slider.

[0010] In a specific feasible embodiment, a mounting bolt is penetrated through the buffer pad, a mounting groove matching the mounting bolt is opened on the surface of the slider facing the buffer pad, and the mounting bolt is threadedly connected in the mounting groove.

[0011] In a specific feasible embodiment, a diversion plate is arranged in the upper mold, a plastic flow channel is opened in the diversion plate, a feed pipe and a discharge pipe communicating with the plastic flow channel are arranged on the diversion plate, and the output end of the discharge pipe communicates with a plurality of cavities.

[0012] In a specific feasible embodiment, a feed funnel is arranged at one end of the feed pipe facing away from the lower mold.

[0013] In a specific feasible embodiment, a guide post is arranged on the surface of the upper mold facing the lower mold, a guide groove matching the guide post is opened on the lower mold, and the guide post is inserted into the guide groove.

[0014] In a specific feasible embodiment, a lock washer block is bolted to the lower mold, and one end of the lock washer block away from the lower mold is bolted to the upper mold.

[0015] In summary, the present application has at least the following beneficial technical effects: When it is necessary to injection mold a terminal block, the injection liquid is injected into the cavity. After the injection liquid in the cavity is cooled and solidified, the upper mold is moved away from the lower mold. Through the driving unit, the plug rod synchronously slides in the direction away from the cavity as the upper mold moves until the plug rod disengages between the two cavities, thereby reducing the restriction of the plug rod on the lower cavity and facilitating the demolding of the lower base molded in the lower cavity. After the upper mold leaves the lower mold, the upper support is exposed, facilitating the removal of the finished terminal block product and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a terminal block in the related art.

[0017] Figure 2 is a schematic overall structural diagram of an embodiment of the present application.

[0018] Figure 3 is a schematic structural diagram for embodying the diversion plate in an embodiment of the present application.

[0019] Figure 4 It is a structural schematic diagram used to reflect the lower cavity in the embodiment of the present application.

[0020] Figure 5 It is a structural schematic diagram used to reflect the insertion rod in the embodiment of the present application.

[0021] Figure 6 It is a schematic diagram of the structure used to reflect the inclined groove in the embodiment of the present application.

[0022] Figure numerals: 1. upper mold; 2. lower mold; 3. lower cavity; 4. insertion rod; 5. inclined column; 6. slide groove; 7. slider; 8. inclined hole; 9. limit seat; 10. plug-in block; 11. tilting block; 12. tilting groove; 13. buffer pad; 14. mounting bolt; 15. guide plate; 16. feed pipe; 17. feed funnel; 18. guide column; 19. guide groove; 20. anti-loosening block; 21. lower base; 22. upper support. DETAILED DESCRIPTION

[0023] The following is combined with Figure 2-6 This application is described in further detail.

[0024] The embodiment of the present application discloses an injection mold for a terminal block.

[0025] Reference Figure 2 and Figure 3 The terminal block injection mold includes an upper mold 1 and a lower mold 2. The upper mold 1 is provided with a plurality of upper cavities whose sizes match the upper support 22 on the surface facing the lower mold 2. The lower mold 2 is provided with a plurality of lower cavities 3 whose sizes match the lower base 21 on the surface facing the upper mold 1. The plurality of upper cavities are connected with the corresponding plurality of lower cavities 3 to form a plurality of mold cavities. In the embodiment of the present application, the upper cavity and the lower cavity 3 in the same mold cavity are located on the same straight line in the vertical direction.

[0026] Reference Figure 2 and Figure 3 The upper mold 1 is provided with a guide plate 15, a plastic flow path is provided in the guide plate 15, a feed pipe 16 and a discharge pipe communicating with the plastic flow path are provided on the guide plate 15, a feed funnel 17 is provided at the end of the feed pipe 16 away from the lower mold 2, the feed funnel 17 is located at the top of the upper mold 1 and the open end of the feed funnel 17 is arranged upward, the feed funnel 17 has a convergence effect on the injection molding liquid, and improves the efficiency of the injection molding liquid entering the feed pipe 16, and the output end of the discharge pipe is communicated with a plurality of cavities. Therefore, the injection molding liquid flows in from the feed pipe 16, flows out of the discharge pipe through the plastic flow path in the guide plate 15, and is injected into a plurality of cavities after being divided, the guide plate 15 has a guiding effect on the injection molding liquid, and improves the efficiency of the injection molding liquid flowing into a plurality of cavities, so as to facilitate the injection molding production of a plurality of terminal block products at the same time.

[0027] Reference Figure 2and Figure 3 On the surface of the upper die 1 facing the lower die 2, a cylindrical guide post 18 is fixedly connected. A circular guide groove 19 matching the size of the guide post 18 is provided on the lower die 2. Therefore, when the guide post 18 is inserted into the guide groove 19 and inserted in place, at this time, the upper cavity of the upper die 1 corresponds to the lower cavity 3 of the lower die 2, which is convenient for installing the upper die 1 on the lower die 2. When the operator needs to lift the upper die 1 to take out the formed wiring block finished product, the guide post 18 moves along the direction of the guide groove 19, and the guide groove 19 plays a role in limiting the position of the guide post 18, improving the stability when lifting the upper die 1.

[0028] Refer to Figure 2 and Figure 3 On the lower die 2, a loosening prevention block 20 is bolted. One end of the loosening prevention block 20 away from the lower die 2 is bolted to the upper die 1. Before demolding, the operator removes the loosening prevention block 20 by means of bolt disassembly. Therefore, when the upper die 1 and the lower die 2 are fitted together to form the wiring block, the loosening prevention block 20 tightly fits the upper die 1 and the lower die 2, reducing the possibility that the upper die 1 and the lower die 2 accidentally separate under the action of external force during the injection molding process of the wiring block, and improving the connection stability between the upper die 1 and the lower die 2.

[0029] Refer to Figure 4 、 Figure 5 and Figure 6 Between adjacent cavities, insertion rods 4 are provided. Both end faces of the insertion rods 4 facing the cavities are partially located in the cavities. A plurality of insertion rods 4 are arranged in the lower die 2 and are slidably connected to the lower die 2. A driving unit for driving the plurality of insertion rods 4 to slide synchronously is provided on the lower die 2. Therefore, when it is necessary to injection mold the wiring block, the injection liquid is injected into the cavity. After the injection liquid in the cavity is cooled and solidified, the upper die 1 is moved away from the lower die 2. Through the driving unit, the insertion rods 4 slide synchronously in the direction away from the cavity as the upper die 1 is lifted until the insertion rods 4 are separated from between the two cavities, thereby reducing the restriction of the insertion rods 4 on the lower cavity 3, facilitating the demolding of the lower base 21 injection molded in the lower cavity 3. After the upper die 1 leaves the lower die 2, the upper support 22 is exposed, facilitating the taking out of the wiring block finished product and improving the production efficiency.

[0030] Refer to Figure 4 、 Figure 5 and Figure 6 The driving unit includes an inclined post 5 provided on the upper die 1. A chute 6 is provided on the surface of the lower die 2 facing the upper die 1. A slider 7 is slidably connected in the chute 6. A plurality of insertion rods 4 are arranged on the slider 7. An inclined hole 8 matching the size of the inclined post 5 is provided on the surface of the slider 7 facing the upper die 1. The inclined post 5 passes through the inclined hole 8 and is inserted into the lower die 2. A first limiting component for limiting the position of the slider 7 in the length direction is provided in the chute 6, and a second limiting component for limiting the position of the slider 7 in the width direction is provided on the upper die 1.

[0031] Therefore, when the operator lifts the upper mold 1, the upper mold 1 drives the inclined column 5 to rise synchronously. Since the inclined column 5 passes through the inclined hole 8 and is inserted into the lower mold 2, while the inclined column 5 moves, it drives the slider 7 to slide synchronously, so that the slider 7 and the insertion rod 4 slide synchronously away from the cavity direction as the upper mold 1 is lifted, until the insertion rod 4 disengages between the two cavities, thereby reducing the restriction of the insertion rod 4 on the lower cavity 3 and facilitating the demolding of the lower base 21 injection-molded in the lower cavity 3.

[0032] Referring to Figure 4 and Figure 5 As shown, the first limiting component includes two limiting seats 9 arranged on the lower mold 2. The slider 7 is located between the two limiting seats 9 and is in contact with the two limiting seats 9 respectively. Therefore, the two limiting seats 9 play a role in limiting the position of the slider 7 during sliding, reducing the possibility of position deviation of the slider 7 during sliding and improving the stability of the slider 7 during sliding.

[0033] Referring to Figure 4 and Figure 5 As shown, the second limiting component includes a plugging block 10 bolted to the surface of the upper mold 1 facing the lower mold 2. A tilting block 11 is fixedly connected to the surface of the slider 7 facing away from the cavity. An inclined groove 12 matching the size of the tilting block 11 is formed on the surface of the plugging block 10 facing the cavity. The tilting block 11 is inserted into the inclined groove 12. In the embodiment of the present application, the tilting direction of the tilting block 11, the inclined groove 12 and the inclined column 5 is the same. Therefore, when the upper mold 1 gradually descends and fits the lower mold 2, since the tilting block 11 is inserted into the inclined groove 12, the plugging block 10 pushes the slider 7 to slide during the descent of the upper mold 1, so that the insertion rod 4 on the slider 7 slides synchronously towards the cavity direction as the upper mold 1 descends, and the insertion rod 4 is inserted between the two cavities.

[0034] Referring to Figure 4 and Figure 5 As shown, a buffer pad 13 is provided on the surface of the tilting block 11 facing the inclined groove 12. The buffer pad 13 is pressed between the plugging block 10 and the slider 7. While the buffer pad 13 plays a role of shock absorption and buffering, it reduces the wear degree of the contact surface between the plugging block 10 and the slider 7 and improves the service life of the plugging block 10 and the slider 7. An installation bolt 14 is inserted through the buffer pad 13. An installation groove matching the size of the installation bolt 14 is formed on the surface of the slider 7 facing the buffer pad 13. The installation bolt 14 is threadedly connected in the installation groove. In the embodiment of the present application, the installation bolt 14 is an internal hexagon countersunk head screw, and the end of the installation bolt 14 is lower than the end surface of the buffer pad 13 facing away from the slider 7, reducing the possibility of interference between the installation bolt 14 and the plugging block 10. The operator can disassemble the buffer pad 13 from the slider 7 by means of bolt disassembly, which is convenient for subsequent replacement.

[0035] The implementation principle of the embodiment of this application is as follows: When it is necessary to injection-mold the terminal block, the injection liquid is injected into the cavity. After the injection liquid in the cavity cools and solidifies, the upper mold 1 is lifted to make the upper mold 1 move away from the lower mold 2. The upper mold 1 drives the inclined column 5 to rise synchronously. Since the inclined column 5 passes through the inclined hole 8 and is inserted into the lower mold 2, the slider 7 is driven to slide synchronously while the inclined column 5 moves, so that the slider 7 and the plug rod 4 slide synchronously in the direction away from the cavity as the upper mold 1 is lifted until the plug rod 4 disengages between the two cavities, thereby reducing the restriction of the plug rod 4 on the lower cavity 3 and facilitating the demolding of the lower base 21 injection-molded in the lower cavity 3. After the upper mold 1 is separated from the lower mold 2, the upper support 22 is exposed, which is convenient for taking out the finished terminal block and improves the production efficiency.

[0036] This specific embodiment is only an interpretation of the present invention and does not limit the present invention. Those skilled in the art can make modifications to this embodiment without creative contributions according to needs after reading this specification, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A wiring base injection mold, characterized in that: It includes an upper mold (1) and a lower mold (2). On the surface of the upper mold (1) facing the lower mold (2), a number of upper cavities matching the upper supports (22) are provided. On the surface of the lower mold (2) facing the upper mold (1), a number of lower cavities (3) matching the lower bases (21) are provided. A number of the upper cavities are connected to the corresponding number of lower cavities (3) to form a number of cavities. Insertion rods (4) are provided between adjacent cavities. A number of the insertion rods (4) are all arranged in the lower mold (2) and are slidably connected to the lower mold (2). A driving unit for driving a number of the insertion rods (4) to slide synchronously is provided on the lower mold (2).

2. The terminal block injection mold according to claim 1, characterized in that: The driving unit includes an inclined column (5) provided on the upper mold (1). On the surface of the lower mold (2) facing the upper mold (1), a sliding groove (6) is provided. A slider (7) is slidably connected in the sliding groove (6). A number of the insertion rods (4) are arranged on the slider (7). On the surface of the slider (7) facing the upper mold (1), an inclined hole (8) matching the inclined column (5) is provided. The inclined column (5) passes through the inclined hole (8). A first limiting component for limiting the position of the slider (7) in the length direction is provided in the sliding groove (6). A second limiting component for limiting the position of the slider (7) in the width direction is provided on the upper mold (1).

3. The wiring block injection mold according to claim 2, characterized in that: The first limiting component includes two limiting seats (9) provided on the lower mold (2). The slider (7) is located between the two limiting seats (9) and is in contact with the two limiting seats (9) respectively.

4. The wiring base injection mold according to claim 2, characterized in that: The second limiting component includes a plug-in block (10) provided on the surface of the upper mold (1) facing the lower mold (2). On the surface of the slider (7) facing away from the cavity, an inclined block (11) is provided. On the surface of the plug-in block (10) facing the cavity, an inclined groove (12) matching the inclined block (11) is provided. The inclined block (11) is plugged into the inclined groove (12).

5. The wiring base injection mold according to claim 4, wherein: On the surface of the inclined block (11) facing the inclined groove (12), a buffer pad (13) is provided. The buffer pad (13) is pressed tightly between the plug-in block (10) and the slider (7).

6. The wiring block injection mold according to claim 5, characterized in that: An installation bolt (14) is passed through the buffer pad (13). On the surface of the slider (7) facing the buffer pad (13), an installation groove matching the installation bolt (14) is provided. The installation bolt (14) is threadedly connected in the installation groove.

7. The terminal block injection mold according to claim 1, wherein: A flow guiding plate (15) is provided in the upper mold (1). A flow plastic channel is provided in the flow guiding plate (15). A feed pipe (16) and a discharge pipe communicating with the flow plastic channel are provided on the flow guiding plate (15). The output end of the discharge pipe communicates with a number of cavities.

8. The wiring base injection mold according to claim 7, characterized in that: One end of the feed pipe (16) facing away from the lower mold (2) is provided with a feed funnel (17).

9. The terminal block injection mold according to claim 1, wherein: On the surface of the upper mold (1) facing the lower mold (2), a guide post (18) is provided. On the lower mold (2), a guide groove (19) matching the guide post (18) is provided. The guide post (18) is plugged into the guide groove (19).

10. The wiring block injection mold according to claim 1, characterized in that: A loosening prevention block (20) is bolted to the lower mold (2). One end of the loosening prevention block (20) away from the lower mold (2) is bolted to the upper mold (1).

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