Binding post strip injection mold

Abstract

The utility model relates to the technical field of mold design, in particular to a wiring terminal strip injection mold which comprises a main mold, the main mold comprises an upper mold base and a lower mold base which are matched with each other, an upper mold core is arranged in the upper mold base, a lower mold core is arranged in the lower mold base, and a needle type side face mold core is installed in the lower mold core in a sliding mode. The needle type side face mold cores located on the same side of the mold cavity are jointly installed on a pushing arm, the pushing arm is pushed through a core pulling push rod on the lower mold base, an upper positioning push rod and a lower positioning push rod are fixedly installed on the upper mold base and the lower mold base respectively, and clamping matching holes are formed in the side faces of the upper mold core and the lower mold core respectively. And a cooling pipe is arranged in the clamping column. According to the utility model, the corresponding upper mold core and lower mold core are replaced according to the size and model of the terminal strip to be produced, and the injection molding distribution runner and the cooling runner are customized, so that the production error can be eliminated, and the production quality of the terminal strip is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould design technical field, concretely is a kind of wiring terminal row injection mold. BACKGROUND

[0002] Wiring terminal row can bear multiple mutually insulated wiring terminal assemblies, to facilitate the mutual connection between external cables. Since the size of wiring terminal row is generally small, multiple cavity injection molding is mainly used in the process of wiring terminal row production, but due to the changeable model of wiring terminal row, there are also many different models in the same series, and the average production output required for each model is not high, so if the mold is redesigned for each model of wiring terminal row, the production cost will be greatly increased.

[0003] The utility model with publication number CN223558940U provides a kind of splicing type wiring terminal row injection mold, can make that mold cavity adapts to the production of different model terminal row.But the following problems that affect production efficiency will appear in the injection molding process of the equipment:

[0004] 1. The size of cavity is adjusted by adjusting the position of side plate, which is time-consuming and laborious, and it is difficult to quickly change the model of wiring terminal row produced by production line in multiple multiple cavity injection molding;

[0005] 2. The size of cavity is adjusted by adjusting the position of side plate, which is difficult to guarantee the size accuracy, so as to cause the low good product rate of product, affect the production quality of product;

[0006] 3. Since the size of cavity changes, the flow channel design and cooling system around the cavity do not change adaptively, which cannot eliminate the product quality problems caused by uneven cooling, and also affect the production quality of product. UTILITY MODEL CONTENTS

[0007] The utility model aims to provide a kind of wiring terminal row injection mold, to solve the problems raised in the above background.

[0008] To achieve the above object, the utility model provides the following technical scheme: a wiring terminal row injection mold, including main mould, the main mould includes the upper die holder and lower die holder of mutual cooperation, be provided with upper die core in the upper die holder, and be provided with lower die core in the lower die holder, the upper die core and lower die core mutually cooperate and jointly form at least two for forming the cavity of terminal row, the needle type side core for inserting into the cavity and forming the wiring port in the terminal row is slidably installed in the lower die core, and the needle type side core on the same side of the cavity is jointly installed on a push arm, the push arm is pushed through the core pulling push rod set up on the lower die holder, upper die holder and lower die holder are respectively fixed installation has upper positioning push rod and lower positioning push rod, and the side of upper die core and lower die core is respectively provided with clamping hole, the upper positioning push rod drives a group of clamping column and inserts into the clamping hole of upper die core and fixes upper die core with upper die holder, and the lower positioning push rod drives another group of clamping column and inserts into the clamping hole of lower die core and fixes lower die core with lower die holder, the clamping column is provided with cooling pipe for connecting the cooling flow channel in the upper die core and lower die core with external cooling liquid supply equipment.

[0009] Optionally, the bottom of the lower die core is slidably installed with an ejector pin for ejecting the terminal row out of the cavity, and the bottom of the ejector pin is connected to the lower die core by a second return spring. The lower die holder is fixedly installed with a lifting push rod, and the output end of the lifting push rod is driven with a lifting push plate for pushing the ejector pin to move.

[0010] Optionally, the lifting push rod, the upper positioning push rod, the lower positioning push rod, and the core pulling push rod are all electric push rods, and the push arm and the lower die core are connected by a first return spring.

[0011] Optionally, the upper die holder is provided with an injection flow port, and the upper die core is provided with an injection distribution flow channel that is connected to the injection flow port and communicates with each cavity. After the injection material enters through the injection flow port, it is sent into each cavity by the injection distribution flow channel to form the terminal row.

[0012] Optionally, the upper die core and the lower die core are respectively provided with positioning holes. The upper die holder is provided with an upper positioning column corresponding to the positioning hole on the upper die core, and the lower die holder is provided with a lower positioning column corresponding to the positioning hole on the lower die core.

[0013] Optionally, the lower die holder is provided with a guide hole, and the upper die holder is provided with a guide column that slides along the guide hole and guides the movement direction of the upper die holder.

[0014] Optionally, the core pulling push rod is fixedly installed on the output end of the lower positioning push rod, and the output end of the core pulling push rod is fixedly installed with a butt joint block. The push arm is integrally formed with a clamping block, and the butt joint block and the clamping block are clamped and matched.

[0015] Compared with the prior art, the beneficial effects of the wiring terminal strip injection mold provided by the utility model are that

[0016] 1. The utility model discloses can according to the terminal strip size model of required production replace upper die and lower die and can eliminate cavity size error, improve terminal strip production quality;

[0017] 2. The utility model discloses through upper positioning push rod and lower positioning push rod can quickly fix upper die and lower die, and correctly connect cooling pipe, injection flow port and core-pulling push rod, thereby improve the replacement efficiency of upper die and lower die;

[0018] 3. The utility model discloses through the cooling flow channel and injection distribution flow channel of the customization of every model upper die and lower die, can guarantee injection and cooling effect, eliminate the production error due to injection not in place and cooling uneven, improve terminal strip production quality. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the structure schematic view of the utility model;

[0020] Figure 2 It is the structure side view of the utility model;

[0021] Figure 3 It is the structure section view of the utility model;

[0022] Figure 4 It is the structure schematic view of lower die in the utility model;

[0023] Figure 5 It is the structure side view of lower die in the utility model;

[0024] Figure 6 It is the structure schematic view of upper die in the utility model;

[0025] Figure 7 It is the structure schematic view of terminal strip in the utility model.

[0026] In the drawing: 1, terminal strip;2, main mold;201, upper die holder;202, upper die;203, lower die;204, lower die holder;3, upper positioning push rod;4, lower positioning push rod;5, cooling pipe;6, clamping column;7, jacking push plate;8, clamping fit hole;9, wiring port;10, injection flow port;11, jacking push rod;12, first return spring;13, guide column;14, push arm;15, clamping block;16, butt joint block;17, core-pulling push rod;18, guide hole;19, cavity;20, needle type side surface core;21, positioning hole;22, thimble;23, second return spring. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme of the utility model carry out clearly, completely describe, and more clearly set forth its advantages, the following combining with the drawings to the utility model embodiment carries out further detailed explanation.Should understand, the specific embodiment described here is a part of the embodiment of the utility model, rather than all the embodiment, only use to explain the utility model embodiment, and does not use to limit the utility model embodiment, all other embodiments obtained by the ordinary skill in the art without doing the premise of creative labor belong to the range of the utility model protection.

[0028] Embodiment one: please refer to Figures 1 to 7 The utility model provides a kind of wiring terminal row injection mould, including main mould 2, main mould 2 includes mutually matched upper die seat 201 and lower die seat 204, upper die seat 201 is provided with upper die core 202 in, and lower die seat 204 is provided with lower die core 203 in, upper die core 202 and lower die core 203 mutually cooperate and are commonly formed with at least two for forming terminal row 1 cavity 19, upper die seat 201 is provided with injection runner 10, and upper die core 202 is provided with and injection runner 10 is connected and communicates each cavity 19 of butt joint of injection distribution runner, and injection raw material is sent into each cavity 19 after being formed terminal row 1 by injection runner 10 into injection distribution runner, according to the size different of required production terminal row 1, the number of cavity 19 distributed between upper die core 202 and lower die core 203 is also not identical, to be able to maximum limit to occupy the space in upper die core 202 and lower die core 203 as design reference, and injection distribution runner and cooling channel in upper die core 202 and lower die core 203 are then customized design according to the demand of each model cavity 19 distribution, to meet injection and cooling demand.

[0029] Please refer to Figures 1 to 6The upper die seat 201 and the lower die seat 204 are respectively fixedly installed with the upper positioning push rod 3 and the lower positioning push rod 4, and the side surfaces of the upper die core 202 and the lower die core 203 are respectively provided with clamping matching holes 8. The upper positioning push rod 3 drives a group of clamping columns 6 to be inserted into the clamping matching holes 8 of the upper die core 202 to fix the upper die core 202 and the upper die seat 201, and the lower positioning push rod 4 drives another group of clamping columns 6 to be inserted into the clamping matching holes 8 of the lower die core 203 to fix the lower die core 203 and the lower die seat 204. The clamping column 6 is provided with a cooling pipe 5 for connecting the cooling flow channel in the upper die core 202 and the lower die core 203 with the external cooling liquid supply device. The upper positioning push rod 3 and the lower positioning push rod 4 can quickly fix the upper die core 202 and the lower die core 203 in the upper die seat 201 and the lower die seat 204, and can also conveniently and quickly disassemble the upper die core 202 and the lower die core 203. Thus, the upper die core 202 and the lower die core 203 can be quickly replaced, so that the mold can produce different types of terminal rows 1 by quickly replacing the corresponding die cores. In addition, when the upper die core 202 and the lower die core 203 are fixed, the injection flow channel port 10 will be automatically aligned with the injection distribution flow channel, and the cooling pipe 5 can also be correctly connected to the cooling flow channel. Therefore, no additional action is required to correct the connection of the two, so that the replacement of the upper die core 202 and the lower die core 203 can be further accelerated, thereby enabling the production line to quickly produce different types of terminal rows 1.

[0030] Please refer to Figures 2 to 5 and Figure 7The needle side core 20 for inserting into the cavity 19 to form the terminal port 9 in the terminal row 1 is slidably installed in the lower die core 203, and the needle side cores 20 located at the same side of the cavity 19 are jointly installed on a pushing arm 14, the pushing arm 14 is pushed by a core pulling push rod 17 arranged on the lower die seat 204, the core pulling push rod 17 is fixedly installed on the output end of the lower positioning push rod 4, and the output end of the core pulling push rod 17 is fixedly installed with a butt joint block 16, the pushing arm 14 is integrally formed with a clamping block 15, and the butt joint block 16 and the clamping block 15 are clamped and matched, since the arrangement of the cavities 19 required for the production of each type of terminal row 1 is not the same, the arrangement positions of the needle side cores 20 on the lower die core 203 are also different, but they will be finally connected to the pushing arm 14, and the pushing arm 14 is provided with a clamping block 15 corresponding to the butt joint block 16 at a fixed position, when the clamping column 6 corresponding to the lower die core 203 is correctly clamped into the clamping and matching hole 8, the core pulling push rod 17 will also move inwardly under the drive of the lower positioning push rod 4, so that the clamping block 15 can be correctly clamped with the butt joint block 16, at this time the extension and retraction of the core pulling push rod 17 can change the position of the needle side core 20, so as to realize core pulling, when the clamping column 6 is pulled out of the clamping and matching hole 8 by the lower positioning push rod 4, the clamping block 15 will also be separated from the matching state with the butt joint block 16, at this time the lower die core 203 can be correctly taken out.

[0031] Please refer to Figure 3 and Figure 4The bottom of the lower die core 203 is slidingly installed with a ejector pin 22 for ejecting the terminal row 1 from the cavity 19, and the bottom of the ejector pin 22 is connected with the lower die core 203 through a second reset spring 23, the lower die seat 204 is fixedly installed with a lifting push rod 11, and the output end of the lifting push rod 11 is driven with a lifting push plate 7 for pushing the ejector pin 22 to move, and the lifting push rod 11, the upper positioning push rod 3, the lower positioning push rod 4 and the core pulling push rod 17 are all electric push rods. The pushing arm 14 is connected with the lower die core 203 through the first reset spring 12, when the cavity 19 is not in the working state, and the clamping block 15 and the butt joint block 16 are disengaged from the clamping state, the first reset spring 12 can drive the needle type side core 20 to be in the working position, at this time, it can be ensured that the clamping block 15 is in the preset position, which is also the preset butt joint position of the butt joint block 16, at this time, when the butt joint block 16 is driven by the lower positioning push rod 4 to move inward, the butt joint block 16 and the clamping block 15 can be clamped correctly. The second reset spring 23 at the bottom of the ejector pin 22 is used to ensure that the ejector pin 22 is in the non-working position when it is not needed, so as to avoid that the ejector pin 22 occupies the effective workpiece in the cavity 19, the ejector pin 22 does not need to be in contact with the lifting push plate 7 when it is not working, and when the terminal row 1 needs to be ejected from the cavity 19 through the ejector pin 22, the lifting push rod 11 is used to push the lifting push plate 7 upward, and then the lifting push plate 7 pushes the ejector pin 22 to move upward, since the positions of the cavities 19 for producing terminal rows 1 of different models are different, but the ejector pin 22 only needs to be pushed upward by the lifting push plate 7, therefore, only the corresponding ejector pin 22 needs to be installed on the lower die core 203 at the position corresponding to each cavity 19, these ejector pins 22 are the exclusive ejector pins 22 of each model of lower die core 203, and they are replaced together when the lower die core 203 is replaced, so as to further reduce the operation steps required for replacing the upper die core 202 and the lower die core 203.

[0032] The utility model provides a mould, when using, first need to make injection runner 10 with outside injection molding machine export intercommunication, then according to the size of the terminal row 1 of need production is different and replaces the corresponding type's upper die 202 and lower die 203 on, then closes upper die seat 201 and lower die seat 204, like this can make cavity 19 be closed correctly, then drives push arm 14 movement through core pulling push rod 17, ensure needle type side core 20 movement in place, then can through outside injection molding machine and send injection raw material through injection runner 10 into each cavity 19 and form terminal row 1, then again through cooling pipe 5 and send cooling liquid into the cooling runner in lower die 202 and lower die 203 and carry out cooling forming to terminal row 1, after cooling, can separate upper die seat 201 and lower die seat 204, needle type side core 20 has not been pulled out at this time, therefore the terminal row 1 of already forming will continue to remain in the cavity 19 of lower die seat 204, then through core pulling push rod 17 can pull out needle type side core 20 from cavity 19, then use ejector pin 22 and eject terminal row 1 from cavity 19, therefore can adopt this way and utilize multiple cavities 19 simultaneously production mode to speed up the production speed of terminal row 1, and can quickly flexible change the model of production terminal row 1.It needs to be noted that the shape of terminal row 1 shown in the scheme is mainly used to show the use method of the mould provided by the scheme, especially the use introduction of needle type side core 20, mainly used for showing its use principle and use steps, in the actual terminal row 1 product, there can be other structures that need to be formed by using needle type side core 20, the method required to be used is the same as the way shown in the scheme, and will not be described one by one.

[0033] Example two: please refer to Figures 1 to 6 On the basis of example one, the upper die 202 and lower die 203 are respectively provided with positioning holes 21, the upper die seat 201 is provided with an upper positioning column corresponding to the positioning holes 21 on the upper die 202, and the lower die seat 204 is provided with a lower positioning column corresponding to the positioning holes 21 on the lower die 203, the upper positioning column and the lower positioning column are not shown in the figure, but are located at the positions corresponding to the positioning holes 21 on the upper die seat 201 and the lower die seat 204, the upper positioning column and the lower positioning column are used to guide the quick installation of the upper die 202 and the lower die 203, and secondly, the shape of the upper die 202 and the lower die 203 is maintained during the injection molding process, avoiding the influence of thermal expansion and cold contraction on the shape of the cavity 19, thereby improving the production accuracy of the terminal row 1, the positioning holes 21 and the lower die seat 204 are provided with guide holes 18, and the upper die seat 201 is provided with a guide column 13 sliding along the guide holes 18 and guiding the movement direction of the upper die seat 201, the guide column 13 is used to ensure the clamping accuracy when the upper die 202 and the lower die 203 are clamped, thereby improving the production accuracy of the terminal row 1.

[0034] While the forgoing detailed description of the application has shown specific embodiments of the application, it is to be understood that changes and modifications can be made to the specific embodiments without departing from the spirit and scope of the application as defined by the claims set forth below.

Claims

1. A wiring terminal block injection mold, comprising a main mold (2), the main mold (2) comprising an upper mold base (201) and a lower mold base (204) matched with each other, an upper mold core (202) is arranged in the upper mold base (201), and a lower mold core (203) is arranged in the lower mold base (204), the upper mold core (202) and the lower mold core (203) are matched with each other and jointly form at least two cavities (19) for forming a terminal block (1), characterized in that: a needle type side core (20) for inserting into the cavity (19) to form a wiring port (9) in the terminal block (1) is slidably arranged in the lower mold core (203), and the needle type side cores (20) located on the same side of the cavity (19) are jointly arranged on a pushing arm (14), the pushing arm (14) is pushed by a core pulling push rod (17) arranged on the lower mold base (204), an upper positioning push rod (3) and a lower positioning push rod (4) are fixedly arranged on the upper mold base (201) and the lower mold base (204) respectively, side surfaces of the upper mold core (202) and the lower mold core (203) are respectively provided with clamping matching holes (8), a group of clamping columns (6) driven by the upper positioning push rod (3) are inserted into the clamping matching holes (8) of the upper mold core (202) to fix the upper mold core (202) and the upper mold base (201), and another group of clamping columns (6) driven by the lower positioning push rod (4) are inserted into the clamping matching holes (8) of the lower mold core (203) to fix the lower mold core (203) and the lower mold base (204), and the clamping columns (6) are provided with cooling pipes (5) for connecting cooling channels in the upper mold core (202) and the lower mold core (203) with external cooling liquid supply equipment. A ejector pin (22) for ejecting the terminal block (1) out of the cavity (19) is slidably arranged at the bottom of the lower mold core (203), and the bottom of the ejector pin (22) is connected with the lower mold core (203) through a second return spring (23), a jacking push rod (11) is fixedly arranged on the lower mold base (204), and a jacking push plate (7) for driving the ejector pin (22) to move is driven by the output end of the jacking push rod (11).

2. A terminal block injection mold according to claim 1, characterized in that: The jacking push rod (11), the upper positioning push rod (3), the lower positioning push rod (4) and the core pulling push rod (17) are all electric push rods, and the pushing arm (14) and the lower mold core (203) are connected through a first return spring (12).

3. A wiring terminal strip injection mold according to claim 2, characterized in that: The upper mold base (201) is provided with an injection flow channel opening (10), the upper mold core (202) is provided with an injection distribution flow channel which is connected with the injection flow channel opening (10) and communicates with each cavity (19), and the injection raw material enters each cavity (19) through the injection flow channel opening (10) to form the terminal block (1) after being sent by the injection distribution flow channel.

4. The terminal block injection mold of claim 1, wherein: The upper mold core (202) and the lower mold core (203) are respectively provided with positioning holes (21), the upper mold base (201) is provided with an upper positioning column corresponding to the positioning holes (21) on the upper mold core (202), and the lower mold base (204) is provided with a lower positioning column corresponding to the positioning holes (21) on the lower mold core (203).

5. The terminal block injection mold of claim 1, wherein: ​ 6. The terminal block injection mold of claim 1, wherein: The lower die seat (204) is provided with a guide hole (18), and the upper die seat (201) is provided with a guide column (13) which slides along the guide hole (18) and guides the movement direction of the upper die seat (201).

7. The terminal block injection mold of claim 1, wherein: The core-pulling push rod (17) is fixedly installed at the output end of the lower positioning push rod (4), and the output end of the core-pulling push rod (17) is fixedly installed with a butt joint block (16); the pushing arm (14) is integrally formed with a clamping block (15), and the butt joint block (16) and the clamping block (15) are clamped and matched.

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