CN108466322B - Refrigerator inner bag cut-off die that punches a hole - Google Patents

Abstract

The invention relates to a refrigerator liner punching trimming die which comprises a lower die plate, a lower die frame, an upper die plate, a lower die cavity and a lower cutter bar, wherein an abdication groove is formed in the top surface of the lower cutter bar, a punching needle body is arranged at the bottom of a punching seat, an upper cutter seat is arranged at the bottom of the upper die plate right above the lower cutter bar, the upper cutter seat is provided with the upper cutter bar, an upper cutter seat on the inner side of the upper cutter bar is provided with a guide pin, the guide pin is provided with a pressing block, a pressing elastic piece is arranged between the pressing block and the upper cutter seat, a clamping seat is arranged on the outer side of the upper cutter seat, a rotating shaft is connected with the clamping seat in a rotating way, one end of the pressing edge is connected with the rotating shaft, a pressing cylinder is connected on the upper die plate in a rotating way, and a manipulator arm is connected with the rotating way on a cylinder rod of the pressing cylinder. The edge pressing strip is convenient to ensure the edge tension of the refrigerator inner container during edge cutting, the edge cutting quality is better, the edge pressing strip is driven by the rotating shaft, the driving mechanism is less, the pressing elasticity enables the pressing block to press the edge of the refrigerator inner container, and the edge cutting quality is further improved.

Description

A punching and trimming die for refrigerator liner

Technical Field

The invention relates to a trimming die, in particular to a refrigerator box liner punching and trimming die.

Background Art

The refrigerator liner is usually formed by a polymer material mold. After the refrigerator liner is formed, scraps are usually left on the edge for subsequent processing to ensure high dimensional accuracy of the refrigerator liner after processing. After the refrigerator liner is formed, a trimming die is usually used to trim and punch the refrigerator liner. The existing refrigerator liner trimming die has unstable tension on the edge of the refrigerator liner during trimming, and the trimming quality is difficult to control.

Summary of the invention

In view of the deficiencies in the prior art, the present invention aims to provide a punching and trimming die for a refrigerator liner.

The technical solution adopted by the present invention to solve its technical problems is: a refrigerator box liner punching and trimming die, comprising a lower die plate, a lower die frame arranged on the lower die plate, and an upper die plate located above the lower die frame, the lower die frame is provided with a lower die cavity for the refrigerator box liner to extend into, the lower die cavity opening edge is provided with a lower knife strip extending along the lower die cavity opening edge, the lower knife strip top surface is provided with a makeshift groove for accommodating the refrigerator box liner edge groove, the upper die plate bottom is provided with two punching seats extending into the lower die cavity when the mold is closed, the punching seat bottom is provided with a punching needle body extending downward, the upper die plate bottom directly above the lower knife strip is provided with an upper knife seat, the upper knife seat is provided with an upper knife strip facing the lower knife strip, and the upper knife seat on the inner side of the upper knife strip is provided with a vertical guide pin. , a pressure block is provided on the guide pin, and a clamping elastic member is provided between the pressure block and the upper knife seat, the bottom of the clamping elastic member resists the pressure block, and the top of the clamping elastic member resists the upper knife seat, that is, the clamping elastic member applies a downward elastic force to the pressure block, and a clamping seat is provided on the outer side of the upper knife seat, and a rotating shaft extending along the length direction of the upper knife strip is rotatably connected to the clamping seat, and the rotating shaft is connected to a pressure strip, one end of the pressure strip is connected to the rotating shaft, and both ends of the pressure strip extend to the bottom of the clamping seat, and the pressure strip is perpendicular to the rotating shaft, and a pressing cylinder is rotatably connected to the upper template, and a control arm is rotatably connected to the cylinder rod of the pressing cylinder, and one end of the control arm is connected to the rotating shaft, and the control arm is perpendicular to the rotating shaft.

In the above design, a clamping seat is provided on the outer side of the upper knife strip at the bottom of the upper template, and the clamping seat is rotatably connected to a rotating shaft extending along the length direction of the upper knife strip, and a pressure strip is connected to the rotating shaft, one end of the pressure strip is connected to the rotating shaft, and both ends of the pressure strip extend to the bottom of the clamping seat, and the pressure strip is perpendicular to the rotating shaft. A pressing cylinder is rotatably connected to the upper template, and a control arm is rotatably connected to the cylinder rod of the pressing cylinder, and one end of the control arm is connected to the rotating shaft, so as to ensure the edge tension of the refrigerator inner tank during trimming, and the trimming quality is better. The pressure strip is driven by the rotating shaft, and the driving mechanism is less. The clamping elasticity enables the pressing block to press the edge of the refrigerator inner tank, thereby further improving the trimming quality.

As a further improvement of the present design, the edge pressing strip is L-shaped, which effectively prevents interference with the inner container of the refrigerator box during loading.

As a further improvement of the present design, a concave die plate is provided in the lower die cavity and extends into between the two punching seats when the mold is closed, and a partition punching assembly is provided on the side of the punching seat facing the concave die plate, and the partition punching assembly includes a punching cylinder, a guide plate connected to the cylinder rod of the punching cylinder, a guide column connected to the guide plate and sliding with the punching seat, and a punching head provided on the side of the guide plate facing the concave die plate. The punching cylinder controls the cooperation between the punching head and the concave die plate, so as to facilitate cutting holes on the partition of the refrigerator liner when trimming.

As a further improvement of the present design, a cushion column facing the punch needle body is provided at the bottom of the lower die cavity to improve the punching quality.

As a further improvement of the present design, the inner side of the lower blade and the inner side of the pressure block are provided with a guide wedge for matching during mold closing, so as to improve the mold closing accuracy of the upper blade and the lower blade, protect the upper blade and the lower blade, and further improve the trimming accuracy.

The beneficial effects of the present invention are as follows: a clamping seat is provided on the outer side of the upper knife strip at the bottom of the upper template, and a rotating shaft extending along the length direction of the upper knife strip is rotatably connected to the clamping seat, and a pressure strip is connected to the rotating shaft, and one end of the pressure strip is connected to the rotating shaft, and both ends of the pressure strip extend to the bottom of the clamping seat, and the pressure strip is perpendicular to the rotating shaft. A pressing cylinder is rotatably connected to the upper template, and a control arm is rotatably connected to the cylinder rod of the pressing cylinder, and one end of the control arm is connected to the rotating shaft, which is convenient for ensuring the edge tension of the inner liner of the refrigerator box during trimming, and the trimming quality is better. The pressure strip is driven by the rotating shaft, and the driving mechanism is less. The clamping elasticity enables the pressing block to press the edge of the inner liner of the refrigerator box, thereby further improving the trimming quality.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention is further described below in conjunction with the accompanying drawings and embodiments.

FIG1 is an overall cross-sectional schematic diagram of the present invention.

FIG2 is a schematic diagram of the structure of the septum punching assembly of the present invention,

FIG. 3 is a bottom view of the upper mold of the present invention.

In the figure, 1. lower template, 2. lower mold frame, 3. upper template, 4. punching seat, 5. pressing cylinder, 6. clamping seat, 7. edge pressure strip, 8. operating arm, 9. clamping elastic member, 10. guide pin, 11. pressure block, 12. concave template, 13. punch needle body, 14. cushion column, 15. septum punching assembly, 16. lower knife strip, 17. clearance groove, 18. lower mold cavity, 19. upper knife seat, 20. upper knife strip, 21. rotating shaft, 22. punching head, 23. guide column, 24. punching cylinder, 25. guide plate, 26. guide wedge block.

DETAILED DESCRIPTION

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, wherein the illustrative embodiments and descriptions are only used to explain the present invention but are not intended to limit the present invention.

Embodiment: A refrigerator liner punching and trimming die, comprising a lower die plate 1, a lower die frame 2 arranged on the lower die plate 1, and an upper die plate 3 located above the lower die frame 2, the lower die frame 2 is provided with a lower die cavity 18 for the refrigerator liner to extend into, the lower die cavity 18 opening edge is provided with a lower knife strip 16 extending along the opening edge of the lower die cavity 18, the top surface of the lower knife strip 16 is provided with a makeshift groove 17 for accommodating the edge groove of the refrigerator liner, the bottom of the upper die plate 3 is provided with two punching seats 4 extending into the lower die cavity 18 when the mold is closed, the bottom of the punching seat 4 is provided with a punch needle body 13 extending downward, the bottom of the upper die plate 3 directly above the lower knife strip 16 is provided with an upper knife seat 19, the upper knife seat 19 is provided with an upper knife strip 20 facing the lower knife strip 16, the upper knife seat 19 on the inner side of the upper knife strip 20 is provided with a vertical guide pin 10, and the guide pin 10 is provided with a pressure pin The upper mold plate 3 is provided with a pressure cylinder 5, and the cylinder rod of the pressure cylinder 5 is rotatably connected to the rotation shaft 21, and the control arm 8 is perpendicular to the rotation shaft 21.

In the above design, a clamping seat 6 is provided on the outer side of the upper knife strip 20 at the bottom of the upper template 3, and a rotating shaft 21 extending along the length direction of the upper knife strip 20 is rotatably connected to the clamping seat 6, and a pressure strip 7 is connected to the rotating shaft 21, and one end of the pressure strip 7 is connected to the rotating shaft 21, and both ends of the pressure strip 7 extend to the bottom of the clamping seat 6, and the pressure strip 7 is perpendicular to the rotating shaft 21. A pressing cylinder 5 is rotatably connected to the upper template 3, and a control arm 8 is rotatably connected to the cylinder rod of the pressing cylinder 5, and one end of the control arm 8 is connected to the rotating shaft 21, so as to ensure the edge tension of the inner liner of the refrigerator box during trimming, and the trimming quality is better. The pressure strip 7 is driven by the rotating shaft 21, and the driving mechanism is small. The clamping elasticity enables the pressing block 11 to press the edge of the inner liner of the refrigerator box, thereby further improving the trimming quality.

As a further improvement of the present design, the edge pressing strip 7 is L-shaped, which effectively prevents interference with the inner container of the refrigerator box during loading.

As a further improvement of the present design, a concave die plate 12 is provided in the lower die cavity 18 and extends between the two punching seats 4 when the mold is closed. A partition punching assembly 15 is provided on the side of the punching seat 4 facing the concave die plate 12. The partition punching assembly 15 includes a punching cylinder 24, a guide plate 25 connected to the cylinder rod of the punching cylinder 24, a guide column 23 connected to the guide plate 25 and sliding with the punching seat 4, and a punching head 22 arranged on the side of the guide plate 25 facing the concave die plate 12. The punching cylinder 24 controls the cooperation between the punching head 22 and the concave die plate 12, so as to facilitate cutting holes on the partition of the refrigerator liner when trimming.

As a further improvement of the present design, a cushion column 14 facing the punch needle body 13 is provided at the bottom of the lower die cavity 18 to improve the punching quality.

As a further improvement of the present design, the inner side of the lower blade 16 and the inner side of the pressure block 11 are provided with a guide wedge 26 for matching during mold closing. The upper blade 20 and the lower blade 16 are accurately closed during mold closing, and the upper blade 20 and the lower blade 16 are protected, while further improving the trimming accuracy.

The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims (3)

1. The utility model provides a refrigerator box inner bag cut-off die that punches a hole, includes the lower bolster, sets up lower mould frame on the lower bolster, be located the cope match-plate pattern of lower mould frame top, its characterized in that, the lower mould frame is equipped with the lower die cavity that is convenient for refrigerator box inner bag to stretch into, lower die cavity opening edge is equipped with along the lower die cavity opening edge extends down the sword strip, lower sword strip top surface is equipped with the groove of stepping down that holds refrigerator box inner bag edge groove, the cope match-plate pattern bottom is equipped with two punch holders that stretch into lower die cavity when closing die, punch holder bottom is equipped with the punch pin body that extends down, the cope match-plate pattern bottom of lower sword strip is equipped with the cope match-plate pattern directly over the sword strip, be equipped with the vertical guide pin on the cope match-plate pattern is equipped with the briquetting, be equipped with between briquetting and the cope match-plate pattern holder, compress tightly the elastic component bottom and support and stop down the briquetting, compress tightly the elastic component top and support and hold down the elastic component, be equipped with the briquetting, the cylinder holder is connected with the pivot, the pivot is connected with the pivot is perpendicular to the top holder, the pivot is connected with the pivot, is perpendicular to the top holder; the blank holder is L-shaped; the lower die cavity is internally provided with a female die plate which stretches into between two punching seats when being closed, one side of each punching seat faces to the female die plate is provided with a middle partition punching assembly, and each middle partition punching assembly comprises a punching cylinder, a guide plate connected with a cylinder rod of the corresponding punching cylinder, a guide post connected with the guide plate and sliding with the corresponding punching seat, and a punching head arranged on one side of the guide plate facing to the female die plate.

2. The refrigerator cabinet liner punching and trimming die as claimed in claim 1, wherein a cushion column facing the punch pin body is arranged at the bottom of the lower die cavity.

3. The refrigerator cabinet liner punching and trimming die of claim 1, wherein guide wedges matched during die assembly are arranged on the inner side of the lower cutter bar and the inner side of the pressing block.