A double-ended pin reduction mold

Abstract

The present invention discloses a double-ended pin reduction mold, comprising an upper mold and a lower mold, wherein a limit assembly, a material ejection assembly, a material pressing and conveying assembly and a reset assembly are arranged between the upper mold and the lower mold, wherein the limit assembly is embedded in the upper mold, and the front end of the material strip to be reduced is pressed and limited by a clamping block and a pin, wherein the material ejection assembly is embedded in the lower mold and located at the rear end of the limit assembly, and the material strip is bent upward by the upward push of the ejection rod; the material pressing and conveying assembly is embedded in the upper mold and located at the rear end of the material ejection assembly, and is used to press the material strip and drive the material strip to move forward for reduction, and the reset assembly is embedded in the upper mold to restore the position of the material pressing and conveying assembly. The double-ended pin reduction mold disclosed by the present invention can realize the reduction processing of spaced pins, thereby forming a double-ended pin.

Description

Technical Field

[0001] The invention relates to the field of moulds, and in particular to a double-ended pin reduction mould. Background Art

[0002] At present, most of the pin installations are made into single pins, that is, the pins are arranged at equal intervals on the connecting belt, and the single pins are inserted manually or by machine when in use. Such insertion speed is slow and inefficient. At the same time, the circuits are becoming more and more sophisticated, and there are requirements for the precision of parts. For example, some double-headed connectors require the flatness of the pin head to be within the range of 0.1mm. If it is a traditional single insertion, it is difficult to achieve high precision in terms of flatness. If such requirements are to be met, more efforts must be made in manpower and machines. This is obviously not very economical. The current market competition is fierce, and comprehensive considerations need to be made in terms of cost, speed, and precision. In order to achieve the requirements of fast installation, low cost, and high precision, it is necessary to consider reducing the distance of the single pins arranged at equal intervals to form double-headed pins, so as to achieve simultaneous installation and meet the relevant installation precision requirements. Summary of the invention

[0003] Purpose of the invention: In order to solve the deficiencies of the prior art, the present invention provides a double-ended pin reduction mold to achieve the reduction processing of spaced-apart pins, thereby forming a double-ended pin.

[0004] The technical solution adopted by the present invention is: a double-head pin reduction mold, including an upper mold, a lower mold, and a conveying device for conveying a material strip, a limit assembly, a material ejection assembly, a material pressing and conveying assembly, and a reset assembly are arranged between the upper mold and the lower mold, and the limit assembly is embedded in the upper mold, including a limit hanging table, a material pressing block installed under the limit hanging table to press the material strip, and a pin embedded in the material pressing block to position the material strip;

[0005] The ejector assembly is embedded in the lower die and located at the rear end of the limit assembly, and the material strip is bent upward by the ejector rod;

[0006] The pressing material conveying assembly is embedded in the upper mold and is located at the rear end of the top material assembly. It has a second hanging platform, a connecting block, a second pin, a conveying pressing material block and a conveying driving rod. The second hanging platform is embedded in the upper mold, the upper end of the connecting block is slidably assembled with the second hanging platform horizontally, the lower end of the connecting block is inserted into the conveying pressing material block, and the second pin is embedded in the connecting block. As the second hanging platform moves downward, the connecting block presses the material strip, and the second pin is inserted into the material strip for positioning. The conveying pressing material block cooperates with the intermediate block to be fixed on the surface of the lower mold, the conveying pressing material block is located above the material strip, and it is slidably assembled with the intermediate block horizontally, and the rear end of the conveying pressing material block has a first beveled surface, and the conveying driving rod is embedded in the upper mold and is located at the rear end of the second hanging platform, and its lower end has a second beveled surface matched with the first beveled surface, and the conveying driving rod moves downward, and the beveled surface is used to make the conveying pressing material block and the connecting block drive the material strip forward, and at the same time, the relative surfaces of the pressing block and the conveying pressing material block are used to clamp the bending portion of the material strip;

[0007] The reset assembly is embedded in the upper mold to reset the connecting block and the conveying pressing block.

[0008] Preferably, the upper mold has an upper fixed plate and an upper mold base, the upper fixed plate is connected to the lifting cylinder through a clamping block, a spring guide column is provided between the upper mold base and the upper fixed plate, the lower mold has a lower fixed plate and a lower mold base, the lower fixed plate is connected to the lifting cylinder through a clamping block, a spring guide column is provided between the lower mold base and the lower fixed plate, the upper mold base and the lower mold base are connected and fixed by positioning columns, and the pin strip is placed between the upper mold base and the lower mold base.

[0009] Preferably, auxiliary pressing blocks are fixed at both ends of the bottom surface of the upper die seat, the auxiliary pressing blocks fit the pin strip but are not pressed tightly, and a support platform is provided on the surface of the lower die seat.

[0010] Preferably, the position-limiting hanging platform is slidably embedded in the upper die base, and the upper end thereof cooperates with the spring hanging platform to be installed on the back side of the upper fixed plate.

[0011] Preferably, the ejector rod is embedded in the lower die base, and the lower end thereof is mounted on the lower fixed plate in cooperation with the spring hanging platform. The upper end of the ejector rod is provided with a flat ejector pin, and the end of the ejector pin is a triangular structure.

[0012] Preferably, the second hanging platform is slidably embedded in the upper mold base, and its upper end cooperates with the spring hanging platform to be installed on the back of the upper fixed plate. Its lower end is provided with a horizontally penetrating slide groove 607. The upper end of the connecting block is inserted in the slide groove and can move laterally along the slide groove under the action of external force.

[0013] Preferably, the reset assembly includes a reset rod and a reset spring. The reset rod is embedded in the upper mold base, its side is in contact with the second hanging platform, and the lower end has a reset slope, which cooperates with the slope at the front end of the connecting block for reset. One end of the reset spring is connected to the conveying pressing block, and the other end is connected to the auxiliary pressing block.

[0014] Beneficial effects: The double-ended pin reduction mold disclosed in the present invention uses a simple structure to achieve the reduction molding of the spaced pins, realizes the processing of the double-ended pins, and improves the convenience of subsequent use and installation accuracy of the pins;

[0015] The mold uses a series of actions such as pressing at the front end, pushing up in the middle to form a bend, and pressing and moving forward at the rear end to achieve shortening processing. The process is dynamic and reasonable, and the operation is continuous. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of a double-ended pin strip corresponding to an embodiment of the present invention;

[0017] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0018] Figure 3 is a cross-sectional view of an embodiment of the present invention;

[0019] Figure 4 for Figure 3 Middle partial enlarged picture;

[0020] Figure 5 A partial side view of an embodiment of the present invention;

[0021] Figure 6 The local structure of the embodiment of the present invention Figure 1 .

[0022] In the figure: 1-pin strip, 2-upper die, 3-lower die, 4-limiting assembly, 5-top material assembly, 6-pressing material transmission assembly, 7-reset assembly, 101-connecting belt, 102-pin, 103-positioning hole, 201-upper fixed plate, 202-upper die seat, 203-spring guide column, 204-clamping block, 205-auxiliary press block, 206-positioning column, 301-lower fixed plate, 302-lower die seat, 303-support, 304-positioning slot, 305-through hole, 306-long slot, 401 -Limiting hanging platform, 402-pressing block, 403-pin, 404-spring hanging platform, 501-ejecting rod, 502-connecting hanging platform, 503-ejecting pin, 601-second hanging platform, 602-connecting block, 603-second pin, 604-transmission pressing block, 605-transmission driving rod, 606-second connecting hanging platform, 607-slide, 608-middle block, 609-second slide, 610-first bevel, 611-second bevel, 612-bevel, 701-reset rod, 702-reset bevel. DETAILED DESCRIPTION

[0023] The technical solutions of the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention.

[0024] The double-ended pin reduction mold disclosed in the present invention is used to reduce the distance of the pin strip, and to form a side-by-side whole of two spaced pins by bending a connecting strip, such as Figure 1 As shown, the pin strip 1 includes a connecting strip 101 and a plurality of pins 102 arranged at intervals. Positioning holes 103 are arranged at equal intervals on the connecting strip. The pin strip structure in the initial state is as shown in FIG. Figure 1 As shown at A on the right side of the , the pins are set at equal intervals. However, in order to match the double-head socket, we need to shorten the distance between the two pins so that they fit together. Figure 1 The structure described at B on the left side makes two pins form a group, and the groups are arranged at equal intervals. The mold of the present invention bends and shortens the connection belt so that the two pins are close together to form a double-ended pin.

[0025] Specifically, the mold structure is as follows: Figures 2~6 As shown, it includes an upper mold 2, a lower mold 3, and a conveying device (located at the front end, not shown in the figure) for conveying the pin material strip 1. A limiting component 4, a material ejecting component 5, a material pressing and conveying component 6 and a reset component 7 are arranged between the upper mold and the lower mold. The limiting component presses and limits the front end of the connecting strip to be shortened, the material ejecting component pushes up to bend the connecting strip, the material pressing and conveying component presses the connecting strip and drives the connecting strip to move forward to shorten the strip, and the reset component restores the position of the material pressing and conveying component.

[0026] The upper die includes an upper fixed plate 201, an upper die seat 202 and a spring guide column 203. The upper fixed plate is connected to a lifting cylinder (not shown) via a clamping block 204. The spring guide column is located between the upper die seat and the upper fixed plate. Auxiliary pressing blocks 205 are installed at both ends of the lower end surface of the upper die seat. The auxiliary pressing blocks fit the connecting belt of the pin strip but do not press it tightly. Under the condition of ensuring the normal transmission of the pin strip, downward pressure is applied to both ends to prevent the strip from warping.

[0027] The lower die includes a lower fixed plate 301, a lower die seat 302 and a spring guide column. The lower fixed plate is connected to the lifting cylinder through a clamping block. The spring guide column is located between the lower die seat and the lower fixed plate. A support 303 for carrying the pin strip is installed on the surface of the lower die seat, and a positioning slot 304 is provided on the support corresponding to the limit assembly, a through hole 305 is provided at the corresponding ejection assembly, and a long slot 306 is provided at the corresponding pressure conveying assembly. The upper die seat and the lower die seat are connected and fixed by a positioning column 206. The pin strip is placed between the auxiliary pressure block and the support. During molding, the upper fixed plate and the lower fixed plate move up and down under the drive of the lifting cylinder, so that the limit assembly, ejection assembly and pressure conveying assembly installed on the upper and lower fixed plates work, while the upper die seat and the lower die seat are fixed. Only when the overall material strip is replaced, the positioning column needs to be removed and the upper and lower die seats need to be opened.

[0028] The limiting assembly is installed in the upper die, and is used to compress and limit the connecting belt at the front end of the bending. Its structure includes a limiting hanging platform 401, a pressure block 402 and an insertion pin 403. The limiting hanging platform is slidably embedded in the upper die seat, and its upper end cooperates with the spring hanging platform 404 to be installed on the back of the upper fixed plate, and its lower end is fixed with a pressure block. One end of the insertion pin is fixed in the pressure block, and the other end extends out of the pressure block. As the upper fixed plate moves downward, the limiting hanging platform drives the pressure block to compress the connecting belt at the front end of the bending position. At the same time, the insertion pin is inserted into the corresponding positioning hole on the connecting belt and inserted into the positioning slot of the support platform to realize the compression and limitation of the connecting belt at the front end of the bending part.

[0029] The ejector assembly is located at the rear end of the limiting assembly and is embedded in the lower mold to eject the bent portion of the connecting section so that it changes from a flat surface to an inverted U-shaped bending structure. The ejector assembly includes an ejector rod 501 and a connecting hanger 502. The ejector rod is slidably embedded in the lower mold base, and its lower end is fixed to the lower fixed plate through the connecting hanger. The upper end of the ejector rod has a flat ejector pin 503, and the end of the ejector pin is a triangular structure. The upward movement of the lower fixed plate allows the ejector pin of the triangular structure to pass through the through hole of the support platform upward and abut against the connecting belt. Since the front connecting belt is compressed, the rear connecting belt moves forward accordingly and is bent as the ejector pin extends.

[0030] The material pressing and conveying assembly is located at the rear of the material ejecting assembly, and includes a second hanging platform 601, a connecting block 602, a second plug pin 603, a conveying material pressing block 604, a conveying driving rod 605 and a second connecting hanging platform 606. The second hanging platform is slidably embedded in the upper die seat, and its upper end is mounted on the back of the upper fixed plate in cooperation with the spring hanging platform, and its lower end is provided with a horizontally penetrating slide groove 607. The upper end of the connecting block is inserted in the slide groove and can move horizontally along the slide groove under the action of external force. The lower end of the connecting block is inserted in the conveying material pressing block and is located directly above the connecting belt. The second plug pin is embedded in the connecting block. As the second hanging platform moves downward, the second plug pin is inserted into the positioning hole of the connecting belt. The conveying material pressing block is mounted on the support platform through the intermediate block 608, and the conveying material pressing block and the intermediate block are matched through the horizontally arranged second slide groove 609, so that the conveying material pressing block Under the action of external force, it can move laterally relative to the middle block. The rear end of the transmission pressing block has a first beveled surface 610. The transmission driving rod is slidably embedded in the upper mold seat. Its upper end cooperates with the second connecting hanging platform to be installed on the back of the upper fixed plate, and the lower end has a second beveled surface 611 that cooperates with the first beveled surface. As the upper fixed plate moves downward, the second pin is inserted into the positioning hole behind the bent part of the connecting belt, and the connecting block presses the connecting belt at the same time. As the upper fixed plate continues to move downward, the transmission driving rod moves downward, and the second beveled surface at its end cooperates with the first beveled surface to push the transmission pressing block to drive the connecting block to move forward horizontally, so that the connecting belt moves forward, and the bent connecting belt ejected by the ejection rod is pressed together. The connecting belt is clamped by the relative surfaces of the pressing block 402 and the transmission pressing block, thereby realizing the shortening of the two pins to form a double-headed pin.

[0031] The reset assembly resets the connecting block and the conveying pressing block after the distance is shortened, and includes a reset rod 701 and a reset spring (not shown). The reset rod is installed in the upper die seat, and its side is in contact with the second hanging platform, and the lower end has a reset slope 702, which cooperates with the slope 612 at the front end of the connecting block. When the upper fixed plate moves up, the slope of the connecting block contacts the reset section, thereby moving laterally for reset. One end of the reset spring is connected to the conveying pressing block, and the other end is connected to the auxiliary pressing block. As the upper fixed plate moves up, the conveying drive rod is lifted. After the conveying pressing block loses external force, the spring drives the conveying pressing block to move laterally and reset.

[0032] The present invention discloses a double-head pin reduction mold, and its working process is as follows: after the pin material strip is transmitted to the processing position, the upper fixed plate moves down to the first gear position, at this time, the pin of the limiting assembly passes through the positioning hole of the connecting belt, and the pressure block presses the front end of the connecting belt. At this time, the second pin has not been inserted into the positioning hole, and the conveyor belt at the rear end is in a free state, and then the lower fixed plate moves up, and the ejector rod pushes the connecting belt upward. Since the connecting belt at the front end is compressed, the rear end connecting belt moves forward accordingly and is bent as the ejector pin extends. Due to the joint action of the pressure block and the conveying pressure block, the bent part is in an inverted U shape, and then the ejector rod moves down, and the upper fixed plate moves down again. At this time, the second pin is inserted into the positioning hole and presses the rear end of the connecting belt. As the upper fixed plate continues to move down, the lower end of the conveying drive rod abuts against the conveying pressure block, driving the conveying pressure block and the connecting block to move forward, thereby moving the connecting belt forward, and using the relative surfaces of the pressure block and the conveying pressure block to clamp the bent connecting belt, thereby realizing the reduction of the distance between the two pins to form a double-headed pin.

[0033] As the upper fixed plate moves upward, the inclined surface of the connecting block contacts the reset inclined surface to reset the connecting block, and at the same time, the reset spring drives the conveying pressing block to reset.

[0034] The technical contents and technical features of the present invention have been disclosed as above. However, those skilled in the art may still make various substitutions and modifications based on the teachings and disclosures of the present invention without departing from the spirit of the present invention. Therefore, the protection scope of the present invention should not be limited to the contents disclosed in the embodiments, but should include various substitutions and modifications that do not depart from the present invention and are covered by the claims of this patent application.

Claims

1. A double-ended pin reduction mold, comprising an upper mold, a lower mold, and a conveying device for conveying a material belt, characterized in that: A limiting assembly, a material ejecting assembly, a material pressing and conveying assembly, and a resetting assembly are provided between the upper die and the lower die. The limiting assembly is embedded in the upper die and includes a limiting hanging platform, a material pressing block installed under the limiting hanging platform for pressing the material strip, and a pin embedded in the material pressing block for positioning the material strip; The upper mold comprises an upper fixed plate and an upper mold base, the upper fixed plate is connected to the lifting cylinder through a clamping block, a spring guide column is provided between the upper mold base and the upper fixed plate, the lower mold comprises a lower fixed plate and a lower mold base, the lower fixed plate is connected to the lifting cylinder through a clamping block, a spring guide column is provided between the lower mold base and the lower fixed plate, the upper mold base and the lower mold base are connected and fixed by a positioning column, and the pin strip is placed between the upper mold base and the lower mold base; The ejector assembly is embedded in the lower die and located at the rear end of the limit assembly, and the material strip is bent upward by the ejector rod; The ejector rod is embedded in the lower die seat, and its lower end is mounted on the lower fixed plate in cooperation with the spring hanging platform. The upper end of the ejector rod is provided with a flat ejector pin, and the end of the ejector pin is a triangular structure. The pressing material conveying assembly is embedded in the upper mold and is located at the rear end of the top material assembly. It has a second hanging platform, a connecting block, a second pin, a conveying pressing material block and a conveying driving rod. The second hanging platform is embedded in the upper mold, the upper end of the connecting block is slidably assembled with the second hanging platform horizontally, the lower end of the connecting block is inserted into the conveying pressing material block, and the second pin is embedded in the connecting block. As the second hanging platform moves downward, the connecting block presses the material strip, and the second pin is inserted into the material strip for positioning. The conveying pressing material block cooperates with the intermediate block to be fixed on the surface of the lower mold, the conveying pressing material block is located above the material strip, and it is slidably assembled with the intermediate block horizontally, and the rear end of the conveying pressing material block has a first beveled surface, and the conveying driving rod is embedded in the upper mold and is located at the rear end of the second hanging platform, and its lower end has a second beveled surface matched with the first beveled surface, and the conveying driving rod moves downward, and the beveled surface is used to make the conveying pressing material block and the connecting block drive the material strip forward, and at the same time, the relative surfaces of the pressing block and the conveying pressing material block are used to clamp the bending portion of the material strip; The second hanging platform is slidably embedded in the upper die seat, and its upper end is mounted on the back of the upper fixed plate in cooperation with the spring hanging platform, and its lower end is provided with a sliding groove that runs horizontally through, and the upper end of the connecting block is inserted in the sliding groove and can move horizontally along the sliding groove under the action of external force; The reset assembly is embedded in the upper mold to reset the connecting block and the conveying pressing block.

2. A double-ended pin reduction mold according to claim 1, characterized in that: Auxiliary pressing blocks are fixed at both ends of the bottom surface of the upper die seat, the auxiliary pressing blocks fit the pin strip but are not pressed tightly, and a support platform is provided on the surface of the lower die seat.

3. A double-ended pin reduction mold according to claim 1, characterized in that: The limit hanging platform is slidably embedded in the upper die seat, and the upper end thereof is matched with the spring hanging platform and installed on the back side of the upper fixed plate.

4. A double-ended pin reduction mold according to claim 1, characterized in that: The reset assembly includes a reset rod and a reset spring. The reset rod is embedded in the upper mold base, and its side is in contact with the second hanging platform. The lower end has a reset slope, which cooperates with the slope at the front end of the connecting block for reset. One end of the reset spring is connected to the conveying pressing block, and the other end is connected to the auxiliary pressing block.

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