Automobile headrest plug-in pipe progressive die and application method

Abstract

The application relates to a continuous die for an automobile headrest insertion pipe and an application method, which comprises an upper die and a lower die, the lower die is provided with a supporting strip for supporting a continuous die material belt, and the two sides of the supporting strip are sequentially provided with a shearing forming female die, a bending female die and a machining mechanism; the machining mechanism comprises a sliding seat and an elastic reset piece; the side of the sliding seat facing the supporting strip is provided with a first forming column and a second forming column, the machining mechanism further comprises a first bending forming sliding block, a second bending forming sliding block and a linkage unit, the upper die is provided with a floating material pressing block, a shearing block, a bending punch, a first side cutter and a second side cutter; the continuous die can be applied to continuously machining and forming the automobile headrest insertion pipe, the machining efficiency is high, and with the aid of the special linkage unit, the two most complex bending steps of the insertion pipe can be completed in one mold closing, the consistency of the product in the two stations is guaranteed, and the product quality is improved.

Description

Technical Field

[0001] This invention relates to the field of automotive hardware parts processing technology, and more specifically, to a continuous mold for automotive headrest inserts and its application method. Background Technology

[0002] The inserts on car headrests are used to fit into the holes on the upper part of the car seat. Currently, when processing this type of square car headrest inserts, the usual methods are to process each part individually using a transfer mold, or to process them separately using multiple independent metal forming molds, which is even less efficient. Although both methods can be used, they are inefficient. Therefore, a continuous mold and application method for car headrest inserts are needed. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a continuous mold for automobile headrest insertion tubes, and to provide a method for applying the continuous mold for automobile headrest insertion tubes, in view of the above-mentioned defects of the prior art.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] A continuous die for an automotive headrest insert is constructed, comprising an upper die and a lower die. The lower die is provided with a support strip for supporting the continuous die material strip. On both sides of the support strip are sequentially provided a shearing die, a bending die for bending the sheared workpiece downwards at 90 degrees to form a longer long side and a shorter short side, and one or more processing mechanisms. The processing mechanism includes a sliding seat and an elastic reset member for resetting the sliding seat. The sliding direction of the sliding seat is transverse and perpendicular to the support strip. A first forming post and a second forming post are provided on the side of the sliding seat facing the support strip, and the first forming post and the second forming post are transverse along the workpiece feeding direction. The components are arranged side by side; the processing mechanism also includes a first bending forming slider corresponding to the first forming column that bends the long side of the workpiece laterally by 90 degrees, a second bending forming slider corresponding to the second forming column that bends the end of the long side of the workpiece laterally by 90 degrees upwards, and a linkage unit. When the first bending forming slider moves to perform bending forming, the linkage unit drives the second bending forming slider to move to perform bending forming. The upper die is provided with a floating pressure block, a shearing block that cooperates with the shearing forming die, a bending punch that cooperates with the bending die, a first side cutter that cooperates with the sliding seat, and a second side cutter that cooperates with the first bending forming slider.

[0006] The continuous mold for automotive headrest inserts of the present invention includes a first inclined surface on one side of the first bending forming slider that cooperates with the second side blade, and a transverse extrusion punch on the other side. The lower mold is provided with an extrusion block that cooperates with the extrusion punch and a guide unit that guides the transverse movement of the extrusion block.

[0007] The continuous mold for automotive headrest inserts of the present invention includes a linkage unit comprising a concave groove located below the first bending forming slider, a linkage rod rotatably disposed longitudinally within the concave groove, the middle portion of the linkage rod being rotatably connected to the inner wall of the concave groove via a transverse rotating shaft, and ball heads provided at both ends of the linkage rod; a transmission block with a second inclined surface is slidably disposed longitudinally on the inner wall of the concave groove; a third inclined surface cooperating with the second inclined surface is provided on the side of the extrusion block opposite to the extrusion punch; and the second bending forming slider is driven to move upward by the linkage rod.

[0008] The continuous mold for automotive headrest inserts of the present invention includes a guide block on the lower mold for longitudinally guiding the second bending forming slider.

[0009] The continuous mold for automotive headrest inserts of the present invention includes an arc-shaped groove at the lower end of both the second bending forming slider and the transmission block, which mates with the ball head.

[0010] The continuous mold for automotive headrest inserts of the present invention includes a torsion spring sleeved on the rotating shaft, which applies an upward elastic force to one end of the linkage rod on which the transmission block is located.

[0011] The continuous mold for automotive headrest inserts of the present invention includes a fourth inclined surface on the sliding seat that cooperates with the first side blade, and two mounting through holes on the fourth inclined surface for the first forming post and the second forming post to pass through and be fixed.

[0012] A method for applying a progressive die for automotive headrest inserts, using the aforementioned progressive die for automotive headrest inserts, wherein, for the same workpiece, the method includes the following steps:

[0013] The upper and lower dies close together, and the material strip is pressed and held on the support bar by the floating pressure block. The shearing block moves down and cooperates with the shearing and forming die to detect the sheet-shaped workpiece of the set size.

[0014] The upper and lower dies open, moving the strip forward until the sheet workpiece reaches the bending die.

[0015] The upper and lower molds close together, bending the two sides of the sheet-like workpiece downwards to form a longer long side and a shorter short side;

[0016] The upper and lower dies open, moving the strip forward. The workpiece after one bend reaches the first bending forming slider.

[0017] When the upper and lower molds are closed, the first side cutter drives the sliding seat to move so that the first forming column is inserted into the groove of the workpiece after one bend.

[0018] The second side blade drives the first bending forming slider to move, bending the long side of the workpiece laterally by 90 degrees. The upper and lower molds open, the elastic reset component drives the sliding seat to reset, the first forming column exits the groove of the workpiece, and moves the strip forward.

[0019] When the upper and lower molds are closed, the first side cutter drives the sliding seat to move so that the second forming column is inserted into the groove of the workpiece after the second bending. The second side cutter drives the first bending forming slider to move and drives the second bending forming slider to move through the linkage unit. The second bending forming slider bends the long side end upward by 90 degrees to form the shape.

[0020] When the upper and lower molds open, the elastic reset component drives the sliding seat to reset, and the second forming column exits the groove of the workpiece.

[0021] The beneficial effects of this invention are as follows: When the upper and lower dies are closed, the material strip is pressed against the support bar by a floating pressure block, and the shearing block moves downward to cooperate with the shearing forming die to detect the sheet-like workpiece of a set size; when the upper and lower dies are opened, the material strip is moved forward and the sheet-like workpiece reaches the bending die; when the upper and lower dies are closed, the two sides of the sheet-like workpiece are bent downward to form a longer long side and a shorter short side; when the upper and lower dies are opened, the material strip is moved forward and the workpiece after one bend reaches the first bending forming slider; when the upper and lower dies are closed, the first side cutter drives the sliding seat to move so that the first forming post is inserted into the groove of the workpiece after one bend; the second side cutter drives the first bending forming slider to move, bending the long side of the workpiece laterally by 90 degrees; when the upper and lower dies are opened, the elastic reset member drives the sliding seat to return to its original position. At position 1, the first forming post exits the groove of the workpiece, moving the strip forward; the upper and lower molds close, the first side cutter drives the sliding seat to move, causing the second forming post to insert into the groove of the workpiece after the second bend; the second side cutter drives the first bending forming slider to move, and through the linkage unit, drives the second bending forming slider to move; the second bending forming slider bends the long side end upward by 90 degrees to form; the upper and lower molds open, the elastic reset component drives the sliding seat to reset, and the second forming post exits the groove of the workpiece; using the continuous mold of this application, the automotive headrest insert can be continuously processed and formed, with high processing efficiency; and with the help of a special linkage unit, the two most complex bending steps of the insert can be completed in one mold closing, ensuring the consistency of product processing at these two stations and improving product quality. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort:

[0023] Figure 1 This is a schematic diagram of the lower mold structure of a continuous mold for automotive headrest insertion tubes according to a preferred embodiment of the present invention;

[0024] Figure 2 This is a partial enlarged view of the continuous mold for the automotive headrest insertion tube according to a preferred embodiment of the present invention;

[0025] Figure 3 This is a partially enlarged view from another perspective of the continuous mold for automotive headrest insertion tubes according to a preferred embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the linkage unit structure of the continuous mold for the automotive headrest insertion tube according to a preferred embodiment of the present invention;

[0027] Figure 5 This is a flowchart of the application method of a continuous mold for automotive headrest insertion tubes according to a preferred embodiment of the present invention. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0029] A preferred embodiment of the present invention is a continuous mold for automotive headrest insertion tubes, such as... Figure 1 As shown, see also Figures 2-4The assembly includes an upper die and a lower die 1. The lower die 1 is provided with a support strip 10 for supporting the continuous die strip. On both sides of the support strip 10, there are sequentially arranged shearing forming dies, bending dies for bending the sheared workpiece 3 downwards at 90 degrees to form a longer long side 30 and a shorter short side 31, and one or more sets of processing mechanisms 11. The processing mechanism 11 includes a sliding seat 110 and an elastic reset member 111 for resetting the sliding seat 110. The sliding direction of the sliding seat 110 is transverse and perpendicular to the support strip 10. On the side of the sliding seat 110 facing the support strip 10, there are first forming pillars 112 and second forming pillars 113. The first forming pillars 112 and second forming pillars 113 are arranged transversely side by side along the workpiece feeding direction. The processing mechanism 11 also includes a first bending forming slider 114 corresponding to the first forming column 112 for bending the long side of the workpiece laterally by 90 degrees, a second bending forming slider 115 corresponding to the second forming column 113 for bending the long side of the workpiece laterally by 90 degrees upwards, and a linkage unit 2. When the first bending forming slider 114 moves to perform bending forming, the linkage unit 2 drives the second bending forming slider 115 to move to perform bending forming. The upper die is provided with a floating pressure block, a shearing block that cooperates with the shearing forming die, a bending punch (an n-type punch that performs bending on both sides) that cooperates with the bending die, a first side cutter that cooperates with the sliding seat, and a second side cutter that cooperates with the first bending forming slider.

[0030] It should be noted that all the components involved in the upper mold are existing conventional components, and the shearing forming die and bending die involved in the lower mold are also existing conventional components. These conventional existing components will not be described in detail here.

[0031] The upper and lower dies close together, and the material strip is pressed and held on the support bar by the floating pressure block. The shearing block moves down and cooperates with the shearing and forming die to detect the sheet-shaped workpiece of the set size.

[0032] The upper and lower dies open, moving the strip forward until the sheet workpiece reaches the bending die.

[0033] The upper and lower molds close together, bending the two sides of the sheet-like workpiece downwards to form a longer long side and a shorter short side;

[0034] The upper and lower dies open, moving the strip forward. The workpiece after one bend reaches the first bending forming slider.

[0035] When the upper and lower molds are closed, the first side cutter drives the sliding seat to move so that the first forming post is inserted into the groove of the workpiece after one bend; the second side cutter drives the first bending forming slider to move, bending the long side of the workpiece laterally by 90 degrees; the upper and lower molds open, the elastic reset component drives the sliding seat to reset, the first forming post exits the groove of the workpiece, and the strip moves forward.

[0036] When the upper and lower molds are closed, the first side cutter drives the sliding seat to move so that the second forming column is inserted into the groove of the workpiece after the second bending. The second side cutter drives the first bending forming slider to move and drives the second bending forming slider to move through the linkage unit. The second bending forming slider bends the long side end upward by 90 degrees to form the shape.

[0037] When the upper and lower molds open, the elastic reset component drives the sliding seat to reset, and the second forming column exits the groove of the workpiece;

[0038] By applying the continuous mold of this application, automotive headrest inserts can be continuously processed and formed, resulting in high processing efficiency. Moreover, with the help of a special linkage unit, the two most complex bending steps of the insert can be completed in one mold closing, ensuring the consistency of product processing at these two stations and improving product quality.

[0039] Preferably, the first bending forming slider 114 has a first inclined surface 1140 on one side that cooperates with the second side blade, and a transverse extrusion punch 1141 on the other side. The lower die 1 is provided with an extrusion block 12 that cooperates with the extrusion punch 1141 and a guide unit 13 that guides the transverse movement of the extrusion block 12. When the first bending forming slider 114 receives the extrusion action of the second side blade, it will move laterally. The extrusion punch 1141 moves laterally to extrude the long side 30 of the workpiece 3 to bend it. At the same time, the long side 30 of the workpiece 3 will act on the extrusion block 12, driving the extrusion block 12 to move laterally, ensuring the reliability of the transverse bending.

[0040] The linkage unit 2 includes a concave groove 20 located below the first bending forming slider 114. A linkage rod 21 is rotatably arranged longitudinally inside the concave groove 20. The middle part of the linkage rod 21 is rotatably connected to the inner wall of the concave groove 20 through a transverse rotating shaft 22. Both ends of the linkage rod 21 are provided with ball heads 23. A transmission block 24 with a second inclined surface 240 is slidably arranged longitudinally on the inner wall of the concave groove 20. The extrusion block 12 is provided with a third inclined surface 1142 that cooperates with the second inclined surface on the side opposite to the extrusion punch 1141. The second bending forming slider 115 is driven to move upward by the linkage rod 21. A guide block 14 is provided on the lower die 1 to guide the longitudinal movement of the second bending forming slider 115. The lower ends of the second bending forming slider 115 and the transmission block 24 are both provided with arc grooves 1150 that cooperate with the ball heads 23. A torsion spring 25 is sleeved on the rotating shaft 22 to apply an upward elastic force to the end of the linkage rod 21 where the transmission block is located.

[0041] When the long side 30 of workpiece 3 acts on the extrusion block 12, the extrusion block 12 moves laterally under the guidance of the guide unit 13. Through the cooperation of the third inclined surface 1142 and the second inclined surface 240, the transmission block 24 moves downward, extruding the linkage rod 21. Relying on the leverage of the linkage rod 21, the elastic resistance of the torsion spring 25 is overcome, and the extrusion block 24 moves upward. Under the positioning of the arc groove 1150, the ball head 23 drives the second bending forming slider 115 to rise under the guidance of the guide block 14, and bends the workpiece at the next station upward. With this structure, a set of side cutters and a set of elastic reset mechanisms can be eliminated. At the same time, the bending actions at the two stations are linked to ensure synchronization and reduce the difficulty of mold design. In addition, through the design of the tilt angle of the third inclined surface 1142 and the second inclined surface 240, the linkage output ratio can be quickly adjusted, and the reuse rate of the mold can be improved.

[0042] Preferably, the sliding seat 110 is provided with a fourth inclined surface 1100 that cooperates with the first side blade. The fourth inclined surface 1100 is provided with two mounting through holes 1101 for the first forming column 112 and the second forming column 113 to pass through and be fixed respectively. It has good integrity and facilitates the disassembly and maintenance of the first forming column 112 and the second forming column 113.

[0043] A method for applying a continuous mold for automotive headrest insertion tubes, wherein the continuous mold for automotive headrest insertion tubes as described above is used. Figure 5 As shown, for the same workpiece, the method includes the following steps:

[0044] S01: The upper and lower dies close together, and the material strip is pressed and held on the support bar by the floating pressure block. The shearing block moves down and cooperates with the shearing and forming die to detect the sheet-like workpiece of the set size.

[0045] S02: The upper and lower dies open, moving the strip forward until the sheet workpiece reaches the bending die.

[0046] S03: The upper and lower molds close together, bending the two sides of the sheet-like workpiece downwards to form a longer long side and a shorter short side;

[0047] S04: The upper and lower dies open, the strip moves forward, and the workpiece after one bend reaches the first bending forming slider;

[0048] S05: The upper and lower molds close, and the first side cutter drives the sliding seat to move so that the first forming column is inserted into the groove of the workpiece after one bend.

[0049] S06: The second side blade drives the first bending forming slider to move, bending the long side of the workpiece laterally by 90 degrees. The upper and lower molds open, the elastic reset component drives the sliding seat to reset, the first forming column exits the groove of the workpiece, and moves the strip forward.

[0050] S07: The upper and lower molds are closed. The first side cutter drives the sliding seat to move so that the second forming column is inserted into the groove of the workpiece after the second bending. The second side cutter drives the first bending forming slider to move and drives the second bending forming slider to move through the linkage unit. The second bending forming slider bends the long side end upward by 90 degrees to form.

[0051] S08: The upper and lower molds open, the elastic reset component drives the sliding seat to reset, and the second forming column exits the groove of the workpiece;

[0052] By applying the continuous mold of this application, automotive headrest inserts can be continuously processed and formed, resulting in high processing efficiency. Moreover, with the help of a special linkage unit, the two most complex bending steps of the insert can be completed in one mold closing, ensuring the consistency of product processing at these two stations and improving product quality.

[0053] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A continuous mold for inserting automotive headrest tubes, characterized in that, The device includes an upper die and a lower die. The lower die is provided with a support strip for supporting a continuous die strip. On both sides of the support strip are sequentially arranged a shearing die, a bending die for bending the sheared workpiece downwards at a 90-degree angle to form a longer long side and a shorter short side, and one or more processing mechanisms. The processing mechanism includes a sliding seat and an elastic reset member for resetting the sliding seat. The sliding direction of the sliding seat is transverse and perpendicular to the support strip. A first forming post and a second forming post are provided on the side of the sliding seat facing the support strip. The first forming post and the second forming post are arranged laterally side-by-side along the workpiece feeding direction. The processing mechanism also includes... The system includes a linkage unit, a first bending forming slider corresponding to the first forming column that bends the long side of the workpiece laterally by 90 degrees, and a second bending forming slider corresponding to the second forming column that bends the end of the long side of the workpiece laterally by 90 degrees upward by 90 degrees. When the first bending forming slider moves to perform bending forming, the linkage unit drives the second bending forming slider to move to perform bending forming. The upper die is provided with a floating pressure block, a shearing block that cooperates with the shearing forming die, a bending punch that cooperates with the bending die, a first side cutter that cooperates with the sliding seat, and a second side cutter that cooperates with the first bending forming slider. The first bending forming slider has a first inclined surface on one side that cooperates with the second side blade, and a transverse extrusion punch on the other side. The lower die has an extrusion block that cooperates with the extrusion punch. The linkage unit includes a concave groove located below the first bending forming slider. A linkage rod is rotatably arranged longitudinally in the concave groove. The middle part of the linkage rod is rotatably connected to the inner wall of the concave groove through a transverse rotating shaft. Both ends of the linkage rod are provided with ball heads. A transmission block with a second inclined surface is slidably arranged longitudinally on the inner wall of the concave groove. The side of the extrusion block away from the extrusion punch has a third inclined surface that cooperates with the second inclined surface. The second bending forming slider is driven to move upward by the linkage rod. The lower ends of the second bending forming slider and the transmission block are provided with arc-shaped grooves that respectively cooperate with the ball heads at both ends of the linkage rod.

2. The continuous mold for automotive headrest insertion tubes according to claim 1, characterized in that, The lower die is provided with a guide unit for guiding the lateral movement of the extrusion block.

3. The continuous mold for automotive headrest insertion tubes according to claim 1, characterized in that, The lower mold is provided with a guide block that guides the longitudinal movement of the second bending forming slider.

4. The continuous mold for automotive headrest insertion tubes according to claim 1, characterized in that, A torsion spring is fitted on the rotating shaft to apply an upward elastic force to one end of the linkage rod where the transmission block is located.

5. The continuous mold for automotive headrest insertion tubes according to claim 1, characterized in that, The sliding seat is provided with a fourth inclined surface that cooperates with the first side blade. The fourth inclined surface is provided with two mounting through holes for the first forming column and the second forming column to pass through and be fixed.

6. A method for applying a continuous mold for automotive headrest insertion tubes, comprising using the continuous mold for automotive headrest insertion tubes as described in any one of claims 1-5, characterized in that, For the same workpiece, the method includes the following steps: The upper and lower dies close together, and the material strip is pressed onto the support bar by the floating pressure block. The shearing block moves down and cooperates with the shearing and forming die to cut out sheet-shaped workpieces of a set size. The upper and lower dies open, moving the strip forward until the sheet workpiece reaches the bending die. The upper and lower dies are closed, bending the two sides of the sheet-like workpiece downwards to form a workpiece with a longer long side and a shorter short side after one bending. The upper and lower dies open, moving the strip forward. The workpiece after one bend reaches the first bending forming slider. When the upper and lower molds are closed, the first side cutter drives the sliding seat to move so that the first forming column is inserted into the groove of the workpiece after one bend. The second side blade drives the first bending forming slider to move, bending the long side of the workpiece laterally by 90 degrees to form the workpiece after a second bending. The upper and lower molds open, the elastic reset component drives the sliding seat to reset, the first forming column exits the groove of the workpiece, and the material strip moves forward. When the upper and lower molds are closed, the first side cutter drives the sliding seat to move so that the second forming column is inserted into the groove of the workpiece after the second bending. The second side cutter drives the first bending forming slider to move and drives the second bending forming slider to move through the linkage unit. The second bending forming slider bends the end of the long side of the workpiece horizontally bent by 90 degrees upward by 90 degrees. When the upper and lower molds open, the elastic reset component drives the sliding seat to reset, and the second forming column exits the groove of the workpiece.

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