Reciprocating motion sliding block supporting mold convenient to demold
By designing a reciprocating slider that is easy to release, the reciprocating movement of the drive reset upper mold and the sliding forming lower mold is solved, and the problem of demolding of the bending edge of the fuel tank chuck is achieved smoothly. Improved mold and production efficiency.
Patent Information
- Application Number
- CN202411759704.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-01-10
AI Technical Summary
After the fuel tank chuck is stamped and bent, it is difficult to remove the bent edge from the lower die, resulting in difficulty in demolding.
Design a reciprocating slider supporting mold that is easy to release. By driving the reciprocating movement of the reset upper mold and the sliding forming lower mold, the support and disengagement of the sliding forming lower mold during stamping is achieved, and the elastic reset assembly and arc-shaped coupling surface are used to avoid Direct hard contact ensures smooth mold release of the chuck workpiece.
The effective support and disengagement between the sliding forming lower die and the bent part during the stamping process is realized, which simplifies the demolding process of the chuck workpiece and improves production efficiency.
Smart Images
Figure CN119281938A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the field of fuel tank chuck processing, and in particular relates to a reciprocating motion slider supporting mold which is convenient for demoulding. Background Art
[0002] The fuel tank chuck is installed on the fuel tank of the automobile to install the oil pump or other control valve parts. The fuel tank chuck workpiece is annular, and the outer periphery of the chuck is provided with a plurality of bending edges arranged at intervals along the circumferential direction.
[0003] The bent edge of the fuel tank chuck is formed by punching and bending. The bent edge of the fuel tank chuck is processed into an L shape in the previous process of the chuck processing technology, and is processed into a U shape in the stamping and bending forming process. The punch is provided with a lower die and an upper die corresponding to the bent edge of the fuel tank chuck. The lower die is used to support the L-shaped bent edge of the chuck, and the positioning upper die presses the upper end and outer periphery of the chuck workpiece. The upper die of the punch punches the L-shaped bent edge into a U shape. The problem is that after this bending process, the bent edge is inverted in the lower die, and the workpiece is difficult to get out of the die. Summary of the invention
[0004] The purpose of the present invention is to provide a reciprocating slider supporting mold that is easy to demold, which can drive the sliding forming lower mold to reciprocate by driving the reset upper mold, so that the sliding forming lower mold supports the part to be bent of the chuck workpiece during stamping. After the stamping is completed, when the reset upper mold is driven to move upward and reset, the sliding forming lower mold is separated from the part to be bent.
[0005] The objective of the present invention is achieved in this way: a reciprocating slider supporting mold that is easy to demold, comprising a driving reset upper mold and a sliding forming lower mold correspondingly arranged above and below, the driving reset upper mold is transmission-connected to the punch slider, the sliding forming lower mold is movably connected to the lower fixed plate, the lower fixed plate is provided with an elastic reset component corresponding to the sliding forming lower mold, a functional groove is correspondingly opened on the lower outer side of the driving reset upper mold, a forced reset part is provided on the lower inner side of the driving reset upper mold, and a travel groove is opened on the sliding forming lower mold corresponding to the driving reset upper mold.
[0006] The driving reset upper die and the sliding forming lower die of the present invention are respectively installed on the slider and the lower die seat of the punch press. When the driving reset upper die is at the highest point, the sliding forming lower die is at the innermost position under the action of the spring. When the punch press slider drives the sliding forming lower die to move downward, the driving reset upper die contacts the stroke groove of the sliding forming lower die, and pushes the sliding forming lower die to move outward to squeeze the spring. When the punch press slider reaches the lowest point, when the sliding forming lower die supports the L-shaped part to be bent of the chuck workpiece, the punch above the part to be bent moves downward to bend the L-shaped part to be bent to make it U-shaped, and then the driving reset upper die moves upward to return, and then the sliding forming lower die moves inward to separate from the U-shaped part to be bent, so that the floating material mechanism of the punch press can lift the chuck workpiece. Compared with the prior art, the present invention has the beneficial effect that: the sliding forming lower die can be driven to reciprocate by the driving reset upper die, so that the sliding forming lower die supports the part to be bent of the chuck workpiece during stamping, and when the driving reset upper die moves upward to reset after the stamping is completed, the sliding forming lower die is separated from the part to be bent.
[0007] As a further improvement of the present invention, the lower fixed plate is mounted on the lower die seat of the punch press, the elastic reset assembly includes a spring groove corresponding to the sliding forming lower die and provided on the lower fixed plate, the spring groove is arranged along the moving direction of the sliding forming lower die, a travel limit pin extending downward into the corresponding spring groove is vertically fixed on the sliding forming lower die, the travel limit pin is against the inner wall of the inward end of the spring groove, and a reset driving spring is arranged between the travel limit pin and the inner wall of the outward end of the corresponding spring groove. After the sliding forming lower die moves radially outward, the reset driving spring can reset the sliding forming lower die.
[0008] As a further improvement of the present invention, the driving reset upper die is vertically arranged, the cross section of the driving reset upper die along the horizontal direction is rectangular, the height of the functional groove is greater than the height of the forced reset portion, the inner wall of the driving reset upper die functional groove is provided with a vertical first pushing surface and an inclined second pushing surface, the height of the second pushing surface is higher than the height of the first pushing surface, the bottom surface of the forced reset portion is flush with the bottom surface of the driving reset upper die, and the forced reset portion is also inclinedly provided with a reset pushing surface. By inserting the driving reset upper die into the stroke groove and cooperating with the sliding forming lower die, the sliding forming lower die is driven to move outward to compress the reset driving spring, and the sliding forming lower die can be forced to reset.
[0009] As a further improvement of the present invention, an arc-shaped connection surface is provided between the first pushing surface and the bottom surface of the driving reset upper die, an arc-shaped connection surface is provided between the first pushing surface and the second pushing surface, an arc-shaped connection surface is provided between the second pushing surface and the outer side surface of the driving reset upper die, an arc-shaped connection surface is provided between the reset pushing surface and the bottom surface of the forced reset part, and an arc-shaped connection surface is provided between the reset pushing surface and the inner side surface of the driving reset upper die. The arc-shaped connection surface of the driving reset upper die contacts the inner wall of the stroke groove of the sliding forming lower die, and the arc-shaped flexible contact drive is smoother, avoiding direct hard contact collision.
[0010] As a further improvement of the present invention, the cross-section of the stroke groove in the horizontal direction is rectangular, and the stroke groove includes a main groove and an upper avoidance groove and a lower reset groove located on the inner side of the main groove. The upper avoidance groove is triangular, and the lower reset groove is trapezoidal. The inner inner wall of the stroke groove is vertically provided with an inner limit surface, and the outer inner wall of the stroke groove is respectively provided with an inclined upper push surface located above and a vertical lower push surface located below. The upper push surface and the lower push surface are arranged corresponding to the functional groove, and the lower reset groove is arranged corresponding to the forced reset part. The spacing between the inner side surface and the outer side surface of the driving reset upper die is arranged corresponding to the spacing between the inner limit surface and the lower push surface of the stroke groove. When the driving reset upper die moves downward, the first pushing surface and the second pushing surface of the driving reset upper die contact with the inner wall of the stroke groove of the sliding forming lower die; when the driving reset upper die moves upward, the forced reset part of the driving reset upper die contacts with the lower reset groove of the stroke groove of the sliding forming lower die.
[0011] As a further improvement of the present invention, an arc-shaped connection surface is provided between the inclined inner wall of the upper avoidance groove and the inner limit surface, an arc-shaped connection surface is provided between the inner limit surface and the inclined inner wall of the lower reset groove, and an arc-shaped connection surface is provided between the upper push surface and the lower push surface. When the upper mold is driven to reset and move upward, its arc-shaped connection surface contacts the inner wall of the travel groove of the sliding forming lower mold, and the arc-shaped flexible contact drive is smoother, avoiding direct hard contact collision.
[0012] As a further improvement of the present invention, when the punch press slider drives the driven reset upper mold to move downward, the arc-shaped connecting surface between the bottom surface of the driven reset upper mold and the first pushing surface first contacts the upper push surface of the stroke groove of the sliding forming lower mold; when the driven reset upper mold moves downward until the first pushing surface and the second pushing surface contact the lower push surface and the upper push surface of the stroke groove of the sliding forming lower mold respectively, a spacing is left between the forced reset part and the inner limit surface; when the punch press slider drives the driven reset upper mold to move downward to the lowest point, the inner side surface and the outer side surface of the driven reset upper mold respectively correspond to the inner limit surface and the lower push surface of the stroke groove of the sliding forming lower mold, and a spacing is left between the bottom of the driven reset upper mold and the reset drive spring.
[0013] As a further improvement of the present invention, the driving reset upper die and the sliding forming lower die are evenly arranged along the circumferential direction, and a sliding guide rail is arranged on both sides of each sliding forming lower die on the lower fixed plate in the circumferential direction, and the left and right sides of the sliding forming lower die are respectively movably connected with the corresponding two circumferentially adjacent sliding guide rails, and each sliding forming lower die and each sliding guide rail are staggered in sequence along the circumferential direction, and the lower part of the left and right sides of the sliding forming lower die is provided with a step portion. The left and right sides of the sliding forming lower die are movably connected with the two sliding guide rails on the left and right sides.
[0014] As a further improvement of the present invention, a bending groove is provided on the outer side of the sliding forming lower die, a support portion is formed on the sliding forming lower die above the bending groove, and chamfers are provided on the upper and lower sides of the edge of the support portion, and an annular chuck workpiece is coaxially provided between each driving reset upper die and the sliding forming lower die, and a plurality of L-shaped portions to be bent that are evenly distributed along the circumferential direction are provided on the outer periphery of the chuck workpiece, and each portion to be bent is arranged in a one-to-one correspondence with each sliding forming lower die, and the horizontal section of the L-shaped portion to be bent is arranged corresponding to the support portion, and the portion to be bent is arranged corresponding to the bending groove. The chuck workpiece is connected to the material belt, and the floating material mechanism on the punch press supports the material belt, and the punch above the portion to be bent moves downward to bend the L-shaped portion to be bent into a U shape, and the U-shaped portion to be bent enters the bending groove. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic structural diagram of the present invention when the driving and resetting upper die is at the highest point.
[0016] Figure 2 It is a schematic diagram of the structure when the upper die is driven to move downward.
[0017] Figure 3 It is a schematic diagram of the structure of the upper die contacting the sliding forming lower die for driving the reset upper die.
[0018] Figure 4 It is a schematic diagram of the structure when the first pushing surface contacts the lower pushed surface.
[0019] Figure 5 It is a schematic diagram of the structure when the second pushing surface contacts the upper pushed surface.
[0020] Figure 6 It is a structural schematic diagram when the inner and outer side surfaces of the driving reset upper die are in contact with the inner limit surface and the lower push surface respectively.
[0021] Figure 7 It is a schematic diagram of the structure when the upper die is driven to move downward to the lowest point.
[0022] Figure 8 It is a structural schematic diagram of the forced reset part of the driving reset upper mold contacting the inner wall of the lower reset groove of the sliding forming lower mold when moving upward and returning.
[0023] Fig. 9 It is a schematic diagram of the structure when the upper die is driven to return upward until the first extrusion surface contacts the lower pushed surface.
[0024] Fig.10 It is a top view of the sliding forming lower die and two adjacent sliding guide rails.
[0025] Fig.11 It is a vertical cross-sectional view of the sliding forming lower die and two adjacent sliding guide rails.
[0026] Fig.12 This is a top view of the seven sliding forming lower dies evenly distributed around the circumference.
[0027] Fig.13 It is a structural schematic diagram of the sliding forming lower die moving to the part to be bent of the stamping chuck.
[0028] Fig.14 This is a schematic diagram of the structure when the chuck pendulum is lifted after stamping is completed.
[0029] Among them, 1 drives the reset upper die, 1a forces the reset part, 1a1 resets the pushing surface, 2 slides the forming lower die, 2a supports the part, 3 lower fixed plate, 4 functions the groove, 4a first pushes the surface, 4b second pushes the surface, 5 main grooves, 5a upper avoidance grooves, 5b lower reset grooves, 6 spring grooves, 7 travel limit pins, 8 reset driving springs, 9 inner limit surfaces, 10 upper push surfaces, 11 lower push surfaces, 12 sliding guide rails, 13 step parts, 14 bending grooves, 15 chucks, 15a the part to be bent, 1501 center holes. DETAILED DESCRIPTION
[0030] like Figure 1-14 As shown, a reciprocating slider supporting mold for easy demoulding includes a driving reset upper mold 1 and a sliding forming lower mold 2 correspondingly arranged above and below, the driving reset upper mold 1 is transmission-connected to the punch slider, the sliding forming lower mold 2 is movably connected to the lower fixed plate 3, and an elastic reset component is arranged on the lower fixed plate 3 corresponding to the sliding forming lower mold 2, a functional groove 4 is correspondingly opened on the lower outer side of the driving reset upper mold 1, a forced reset part 1a is provided on the lower inner side of the driving reset upper mold 1, and a travel groove is opened on the sliding forming lower mold 2 corresponding to the driving reset upper mold 1. The lower fixed plate 3 is mounted on the lower die seat of the punch press, and the elastic reset assembly includes a spring groove 6 corresponding to the sliding forming lower die 2 and provided on the lower fixed plate 3, the spring groove 6 is arranged along the moving direction of the sliding forming lower die 2, and a travel limit pin 7 extending downward into the corresponding spring groove 6 is vertically fixed on the sliding forming lower die 2, the travel limit pin 7 is abutted against the inner wall of the inward end of the spring groove 6, and a reset driving spring 8 is arranged between the travel limit pin 7 and the inner wall of the outward end of the corresponding spring groove 6. After the sliding forming lower die 2 moves radially outward, the reset driving spring 8 can reset the sliding forming lower die 2.
[0031] The driving reset upper die 1 is vertically arranged, and the cross section of the driving reset upper die 1 along the horizontal direction is rectangular, the height of the functional groove 4 is greater than the height of the forced reset portion 1a, and the inner wall of the driving reset upper die 1 functional groove 4 is provided with a vertical first pushing surface 4a and an inclined second pushing surface 4b, and the height of the second pushing surface 4b is higher than the height of the first pushing surface 4a, and the bottom surface of the forced reset portion 1a is flush with the bottom surface of the driving reset upper die 1, and a reset pushing surface 1a1 is also inclined on the forced reset portion 1a. By inserting the driving reset upper die 1 into the stroke groove and cooperating with the sliding forming lower die 2, the sliding forming lower die 2 is driven to move outward to compress the reset driving spring 8, and the sliding forming lower die 2 can be forced to reset. An arc-shaped connection surface is provided between the first pushing surface 4a and the bottom surface of the driving reset upper mold 1, an arc-shaped connection surface is provided between the first pushing surface 4a and the second pushing surface 4b, an arc-shaped connection surface is provided between the second pushing surface 4b and the outer side surface of the driving reset upper mold 1, an arc-shaped connection surface is provided between the reset pushing surface 1a1 of the forced reset portion 1a and the bottom surface, and an arc-shaped connection surface is provided between the reset pushing surface 1a1 and the inner side surface of the driving reset upper mold 1. The arc-shaped connection surface of the driving reset upper mold 1 contacts the inner wall of the stroke groove of the sliding forming lower mold 2, and the arc-shaped flexible contact drive is smoother, avoiding direct hard contact collision.
[0032] The cross-section of the stroke groove in the horizontal direction is rectangular, and the stroke groove includes a main groove 5 and an upper avoidance groove 5a and a lower reset groove 5b located on the inner side of the main groove 5. The upper avoidance groove 5a is triangular, and the lower reset groove 5b is trapezoidal. The inner inner wall of the stroke groove is vertically provided with an inner limit surface 9, and the outer inner wall of the stroke groove is respectively provided with an inclined upper push surface 10 located at the top and a vertical lower push surface 11 located at the bottom. The upper push surface 10 and the lower push surface 11 are arranged corresponding to the functional groove 4, and the lower reset groove 5b is arranged corresponding to the forced reset part 1a. The spacing between the inner and outer sides of the driving reset upper mold 1 is arranged corresponding to the spacing between the inner limit surface 9 and the lower push surface 11 of the stroke groove. When the upper mold 1 is driven to move downward, the first pushing surface 4a and the second pushing surface 4b of the upper mold 1 are in contact with the inner wall of the stroke groove of the sliding forming lower mold 2; when the upper mold 1 is driven to move upward, the forced reset portion 1a of the upper mold 1 is in contact with the lower reset groove 5b of the stroke groove of the sliding forming lower mold 2. An arc-shaped connecting surface is provided between the inclined inner wall of the upper avoidance groove 5a and the inner limit surface 9, an arc-shaped connecting surface is provided between the inner limit surface 9 and the inclined inner wall of the lower reset groove 5b, and an arc-shaped connecting surface is provided between the upper push surface 10 and the lower push surface 11. When the upper mold 1 is driven to move upward and return, its arc-shaped connecting surface contacts the inner wall of the stroke groove of the sliding forming lower mold 2, and the arc-shaped flexible contact drive is smoother, avoiding direct hard contact collision.
[0033] When the punch press slider drives the reset upper die 1 to move downward, the arc-shaped connecting surface between the bottom surface of the reset upper die 1 and the first pushing surface 4a first contacts the upper pushing surface 10 of the stroke groove of the sliding forming lower die 2; when the reset upper die 1 moves downward until the first pushing surface 4a and the second pushing surface 4b contact the lower pushing surface 11 and the upper pushing surface 10 of the stroke groove of the sliding forming lower die 2 respectively, a distance is left between the forced reset portion 1a and the inner limit surface 9; when the punch press slider drives the reset upper die 1 to move downward to the lowest point, the inner side surface and the outer side surface of the reset upper die 1 correspond to the inner limit surface 9 and the lower pushing surface 11 of the stroke groove of the sliding forming lower die 2 respectively, and a distance is left between the bottom of the reset upper die 1 and the reset drive spring 8.
[0034] The driving reset upper die 1 and the sliding forming lower die 2 are evenly arranged along the circumferential direction, and a sliding guide rail 12 is arranged on both sides of each sliding forming lower die 2 in the circumferential direction on the lower fixed plate 3. The left and right sides of the sliding forming lower die 2 are respectively movably connected with the corresponding two circumferentially adjacent sliding guide rails 12. Each sliding forming lower die 2 and each sliding guide rail 12 are staggered in sequence along the circumferential direction, and the lower part of the left and right sides of the sliding forming lower die 2 is provided with a step portion 13. The left and right sides of the sliding forming lower die 2 are movably connected with the two sliding guide rails 12 on the left and right sides.
[0035] The outer side of the sliding forming lower die 2 is provided with a bending groove 14, and a support portion 2a is formed on the sliding forming lower die 2 above the bending groove 14, and chamfers are provided on the upper and lower sides of the edge of the support portion 2a, and an annular chuck 15 workpiece is coaxially provided between each driving reset upper die 1 and the sliding forming lower die 2, and a plurality of L-shaped portions to be bent 15a uniformly distributed along the circumferential direction are provided on the outer periphery of the chuck 15 workpiece, and each portion to be bent 15a is arranged one by one with each sliding forming lower die 2, and the horizontal section of the L-shaped portion to be bent 15a is arranged corresponding to the support portion 2a, and the portion to be bent 15a is arranged corresponding to the bending groove 14. The chuck 15 workpiece is connected to the material belt, and the floating material mechanism on the punch press supports the material belt, and the punch above the portion to be bent 15a is bent into a U shape when it moves downward, and the U-shaped portion to be bent 15a enters the bending groove 14.
[0036] The driving reset upper die 1 and the sliding forming lower die 2 of the present invention are respectively installed on the slider and the lower die seat of the punch press. When the driving reset upper die 1 is at the highest point, the sliding forming lower die 2 is at the innermost position under the action of the spring. When the punch press slider drives the sliding forming lower die 2 to move downward, the driving reset upper die 1 contacts the stroke groove of the sliding forming lower die 2, pushing the sliding forming lower die 2 to move outward to squeeze the spring. When the punch press slider reaches the lowest point, the sliding forming lower die 2 supports the L-shaped bending portion 15a of the chuck 15 workpiece. The chuck 15 workpiece is provided with a center hole 1501, and the punch above the bending portion 15a moves downward to bend the L-shaped bending portion 15a to make it U-shaped, and then the driving reset upper die 1 moves upward to return, and then the sliding forming lower die 2 moves inward to separate from the U-shaped bending portion 15a, so that the floating mechanism of the punch press can lift the chuck 15 workpiece. The beneficial effect of the present invention is that it can drive the sliding forming lower die 2 to reciprocate by driving the reset upper die 1, so that the sliding forming lower die 2 supports the part to be bent 15a of the workpiece of the chuck 15 during stamping. After the stamping is completed, when the reset upper die 1 is driven to move upward and reset, the sliding forming lower die 2 is separated from the part to be bent 15a.
[0037] like Figure 1 , the punch slide drives the reset upper die 1 to move to the highest point; Figure 2 , the punch slide drives the reset upper die 1 to move downward continuously; Figure 3 , the arc-shaped connecting surface between the first extrusion surface 4a and the bottom surface of the driving reset upper die 1 contacts the upper push surface 10 of the sliding forming lower die 2, the punch slide continues to move downward, driving the sliding forming lower die 2 to move outward, and the travel limit pin 7 compresses the reset driving spring 8; Figure 4 , the punch slide continues to move downward, and the first extrusion surface 4a contacts the lower push surface 11; Figure 5 , the punch slide continues to move downward, the first pushing surface 4a is in contact with the lower pushing surface 11 and the second pushing surface 4b is in contact with the upper pushing surface 10, the driving reset upper die 1 starts to forcefully push the sliding forming lower die 2, the sliding forming lower die 2 continues to move forward, and the reset driving spring 8 is continuously compressed; Figure 6 , the punch slide continues to move downward, driving the reset upper die 1 to push the sliding forming lower die 2 to the set position, driving the reset upper die 1 to fit the outer side surface of the lower push surface 11 of the stroke groove, and the punch contacts the portion to be bent 15a, and the bending stamping is started; Figure 7 At this time, the punch slide moves to the lowest point, the mold is completely closed, the sliding forming lower mold 2 is driven to reset the upper mold 1 and is fully in place, the part 15a of the workpiece to be bent in the chuck 15 is pressed into the bending groove 14 by the punch and becomes U-shaped, and the whole stamping process is completed; Figure 8At this time, the punch slide starts to move upward, and the driving reset upper die 1 starts to move with the punch slide, and the sliding forming lower die 2 is forced to return and reset by the driving reset upper die 1, and the forced reset portion 1a contacts with the inner wall of the lower reset groove 5b, and the reset driving spring 8 drives the sliding forming lower die 2 to retreat; Fig. 9 At this time, the punch slide starts to continue to move upward, and the driving reset upper die 1 moves with the punch slide, and the sliding forming lower die 2 is forced to reset by the driving reset upper die 1. The part embedded in the sliding forming lower die 2 after the stamping part is bent is out of the lower die due to the reset of the lower die, and the lower die floating mechanism starts to work, lifting the chuck 15 workpiece; Figure 1 , the return stroke is reset to the mold open state. At this time, the punch slide reaches the highest point, the mold is fully opened, the upper mold is completely separated from the lower mold, and a cycle is completed. The feeder feeds the parts of the previous process to repeat the stamping cycle.
[0038] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present invention, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present invention.
Claims
1. A reciprocating slider supporting mold for easy demoulding, characterized in that: It comprises a driving reset upper die and a sliding forming lower die which are arranged correspondingly in the upper and lower parts. The driving reset upper die is transmission-connected to the punch slide, and the sliding forming lower die is movably connected to the lower fixed plate. An elastic reset component is arranged on the lower fixed plate corresponding to the sliding forming lower die. A functional groove is arranged correspondingly on the lower outer side of the driving reset upper die, and a forced reset part is arranged on the lower inner side of the driving reset upper die. A travel groove is arranged through the sliding forming lower die corresponding to the driving reset upper die.
2. A reciprocating slider supporting mold for easy demoulding according to claim 1, characterized in that: The lower fixed plate is installed on the lower die seat of the punch press, and the elastic reset assembly includes a spring groove opened on the lower fixed plate corresponding to the sliding forming lower die, the spring groove is arranged along the moving direction of the sliding forming lower die, and a travel limit pin extending downward into the corresponding spring groove is vertically fixed on the sliding forming lower die, the travel limit pin is abutted against the inner wall of the inward end of the spring groove, and a reset drive spring is arranged between the travel limit pin and the inner wall of the outward end of the corresponding spring groove.
3. A reciprocating slider supporting mold for easy demoulding according to claim 1 or 2, characterized in that: The drive reset upper mold is vertically arranged, and the cross-section of the drive reset upper mold along the horizontal direction is rectangular. The height of the functional groove is greater than the height of the forced reset part. The inner wall of the functional groove of the drive reset upper mold is provided with a vertical first pushing surface and an inclined second pushing surface. The height of the second pushing surface is higher than the height of the first pushing surface. The bottom surface of the forced reset part is flush with the bottom surface of the drive reset upper mold, and the forced reset part is also provided with a reset pushing surface inclined.
4. A reciprocating slider supporting mold for easy demoulding according to claim 3, characterized in that: An arc-shaped connecting surface is provided between the first pushing surface and the bottom surface of the driving reset upper mold, an arc-shaped connecting surface is provided between the first pushing surface and the second pushing surface, an arc-shaped connecting surface is provided between the second pushing surface and the outer side surface of the driving reset upper mold, an arc-shaped connecting surface is provided between the reset pushing surface and the bottom surface of the forced reset part, and an arc-shaped connecting surface is provided between the reset pushing surface and the inner side surface of the driving reset upper mold.
5. A reciprocating slider supporting mold for easy demoulding according to claim 4, characterized in that: The cross-section of the stroke groove in the horizontal direction is rectangular, and the stroke groove includes a main groove and an upper avoidance groove and a lower reset groove located on the inner side of the main groove. The upper avoidance groove is triangular, and the lower reset groove is trapezoidal. The inner inner wall of the stroke groove is vertically provided with an inner limit surface, and the outer inner wall of the stroke groove is respectively provided with an inclined upper push surface located above and a vertical lower push surface located below. The upper push surface and the lower push surface are arranged corresponding to the functional groove, and the lower reset groove is arranged corresponding to the forced reset part. The spacing between the inner and outer sides of the driving reset upper mold is arranged corresponding to the spacing between the inner limit surface and the lower push surface of the stroke groove.
6. A reciprocating slider supporting mold for easy demoulding according to claim 5, characterized in that: An arc connecting surface is provided between the inclined inner wall of the upper avoidance groove and the inner limit surface, an arc connecting surface is provided between the inner limit surface and the inclined inner wall of the lower reset groove, and an arc connecting surface is provided between the upper push surface and the lower push surface.
7. A reciprocating slider supporting mold for easy demoulding according to claim 6, characterized in that: When the punch press slider drives the driven reset upper die to move downward, the arc-shaped connecting surface between the bottom surface of the driven reset upper die and the first pushing surface first contacts the upper pushing surface of the stroke groove of the sliding forming lower die; when the driven reset upper die moves downward until the first pushing surface and the second pushing surface contact the lower pushing surface and the upper pushing surface of the stroke groove of the sliding forming lower die respectively, a spacing is left between the forced reset portion and the inner limit surface; when the punch press slider drives the driven reset upper die to move downward to the lowest point, the inner side surface and the outer side surface of the driven reset upper die respectively correspond to the inner limit surface and the lower pushing surface of the stroke groove of the sliding forming lower die, and a spacing is left between the bottom of the driven reset upper die and the reset drive spring.
8. A reciprocating slider supporting mold for easy demoulding according to claim 7, characterized in that: The driving reset upper mold and the sliding forming lower mold are evenly distributed in the circumferential direction. A sliding guide rail is provided on both sides of each sliding forming lower mold on the lower fixed plate. The left and right sides of the sliding forming lower mold are respectively movably connected with the corresponding two circumferentially adjacent sliding guide rails. The sliding forming lower molds and the sliding guide rails are staggered in sequence along the circumferential direction, and the lower parts of the left and right sides of the sliding forming lower mold are provided with step parts.
9. A reciprocating slider supporting mold for easy demoulding according to claim 8, characterized in that: A bending groove is provided on the outer side of the sliding forming lower die, and a supporting portion is formed on the sliding forming lower die above the bending groove. Chamfers are provided on the upper and lower sides of the edge of the supporting portion. An annular chuck workpiece is coaxially arranged between each driving reset upper die and the sliding forming lower die. A plurality of L-shaped portions to be bent that are evenly distributed along the circumferential direction are provided on the outer periphery of the chuck workpiece. Each portion to be bent is arranged in one-to-one correspondence with each sliding forming lower die, the horizontal section of the L-shaped portion to be bent is arranged corresponding to the supporting portion, and the portion to be bent is arranged corresponding to the bending groove.