A disposable negative angle folding device for PET

Abstract

The present invention relates to the field of PET processing, and specifically to a PET one-time negative angle bending device, comprising a supporting device for supporting, a supporting card plate for limiting is fixedly arranged at the center of the upper end surface of the supporting device, and a stamping cylinder for guiding is fixedly arranged at the center of the upper end surface of the supporting card plate. Compared with the traditional manual bending process, the present invention can bend 800 PCS per hour, and the efficiency is increased to 4000 PCS per hour, which saves manpower and improves efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of PET processing equipment, in particular to a PET one-time negative angle folding device. Background Art

[0002] When processing PET workpieces, bending and shaping operations on PET workpieces is one of the most common processes. During processing, PET workpieces are made of thin materials with a negative bending angle. According to traditional practices, the first step is to fold 90 degrees and the second step is to fold to a negative angle. However, since the existing equipment needs to separate the workpiece from the processed workpiece after folding to a negative angle, the workpiece can only float up with the material belt, which will block the feeding of the workpiece that has been folded to 90 degrees in the previous step, thereby forming processing interference and reducing the efficiency of the equipment in processing PET workpieces. Therefore, a PET one-time negative angle folding device is needed to solve the above-mentioned problems. Summary of the invention

[0003] The object of the present invention is to provide a PET disposable negative angle folding device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a PET disposable negative angle folding device, comprising a supporting device for support, a supporting card plate for limiting is fixedly arranged at the center of the upper end surface of the supporting device, and a stamping cylinder for guiding is fixedly arranged at the center of the upper end surface of the supporting card plate, a limiting push rod for positioning is slidably engaged with the inner end surface of the stamping cylinder, a guide sliding shaft for support is symmetrically arranged on the lower end surface of the supporting card plate, and a processing device is slidably engaged with the lower end surface of the supporting card plate through the guide sliding shaft.

[0005] Preferably, the processing device includes a first pressing mold base for support, the four corners of the lower end surface of the first pressing mold base are respectively provided with fixed guide shafts for guiding, and a spring clamping ring is provided at the lower end surface of the first pressing mold base opposite to the fixed guide shaft, the lower end surfaces of the four groups of fixed guide shafts are slidably clamped with a second pressing mold base, and the four corners of the lower end surface of the second pressing mold base are respectively provided with limiting clamping shafts, two groups of limiting inserts are provided near the middle of the lower end surface of the first pressing mold base, and a guiding groove is provided at the inner end surface of the second pressing mold base opposite to the limiting insert, a positioning groove is provided at the center of the lower end surface of the second pressing mold base, and a bending device is slidably clamped at the inner end surface of the positioning groove.

[0006] Preferably, the bending device includes a bending punch for support, a return spring is arranged at the top of the rear end face of the bending punch, a fixed slide is fixedly installed at the center of the upper end face of the bending punch, and a positioning wedge is symmetrically arranged at the front end face of the bending punch.

[0007] Preferably, the supporting device includes a supporting base plate for supporting, the upper end surface of the supporting base plate is provided with a profile support for limiting, and profile supports for supporting are provided at the four corners of the upper end surfaces of the processing slide and the supporting base plate, a feeding guide groove is opened at the middle part of the upper end surface of the processing slide, and a bending guide groove is opened at the center of the inner end surface of the feeding guide groove, and a lower mold bending block is provided at the lower end surface of the processing slide where it is in contact with the side wall of the bending guide groove.

[0008] Preferably, the spring clamping ring is fixedly connected to the upper end surface of the second pressing mold seat, and the cross-sections of the limit clamping shaft and the fixed guide shaft are both T-shaped. The first pressing mold seat is adapted to the fixed guide shaft through the limit clamping shaft and then slidably clamped on the upper end surface of the second pressing mold seat. The fixed guide shaft and the limit clamping shaft are T-shaped to ensure the stability of relative sliding between the first pressing mold seat and the second pressing mold seat. The four sets of spring clamping rings can provide sufficient elastic force for the subsequent resetting of the first pressing mold seat.

[0009] Preferably, the cross-sections of the fixed slide and the positioning groove are both T-shaped, and the bending device is adapted to the positioning groove through the fixed slide and then slidably engaged on the lower end surface of the second pressing mold seat, and the positioning groove can provide sufficient limiting basis for the forward bending and subsequent elastic reset of the fixed slide.

[0010] Preferably, the return spring is fixedly connected to the inner wall of the positioning slot, and the limiting knife is slidably engaged with the second pressing die seat through the guide slot. The guide slot can provide a sufficient guiding basis for the downward movement of the limiting knife, thereby improving the stability of the guide, and the return spring can provide sufficient elastic force for the subsequent resetting of the bending punch.

[0011] Preferably, the lower end face of the limiting knife is opposite to the inclined surface of the positioning bevel, and the bending punch is opposite to the bending guide groove. When the limiting knife moves downward, it can be guided to the upper part of the positioning bevel through the inclined surface of its body, so as to facilitate the subsequent forward movement and bending of the positioning bevel.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. Compared with the traditional manual bending process, the present invention can bend 800 PCS per hour, and the efficiency is increased to 4000 PCS per hour, which saves manpower and improves efficiency.

[0014] 2. The workpiece feeding of the present invention is stable and the material dropping is smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0016] Figure 1 This is a main body split diagram of the present invention;

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

[0018] Figure 3 It is a disassembled diagram of the processing device of the present invention;

[0019] Figure 4 It is a schematic diagram of the structure of the processing device of the present invention;

[0020] Figure 5 It is a schematic diagram of the structure of the bending device of the present invention;

[0021] Figure 6 This is a disassembled view of the support device of the present invention.

[0022] In the figure: 1-guide slide shaft, 2-stamping cylinder, 3-support card plate, 4-limit push rod, 5-processing device, 6-support device, 51-first pressing die seat, 52-limit insert, 53-spring retaining ring, 54-fixed guide shaft, 55-positioning slide groove, 56-bending device, 57-guide slide groove, 58-limit card shaft, 59-second pressing die seat, 561-reset spring, 562-fixed slide seat, 563-positioning wedge, 564-bending punch, 61-bending guide groove, 62-profile support, 63-processing slide, 64-feeding guide groove, 65-support base plate, 66-lower die bending block. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] The present invention is further described below in conjunction with the accompanying drawings.

[0026] Example 1

[0027] See also Figure 1-6 An embodiment of the present invention provides: a PET disposable negative angle folding device, including a supporting device 6 for supporting, a supporting card plate 3 for limiting is fixedly arranged at the center of the upper end surface of the supporting device 6, and a stamping cylinder 2 for guiding is fixedly arranged at the center of the upper end surface of the supporting card plate 3, a limiting push rod 4 for positioning is slidably clamped on the inner end surface of the stamping cylinder 2, a guide slide shaft 1 for supporting is symmetrically arranged on the lower end surface of the supporting card plate 3, and a processing device 5 is slidably clamped on the lower end surface of the supporting card plate 3 through the guide slide shaft 1.

[0028] The processing device 5 includes a first pressing mold base 51 for support, and the four corners of the lower end surface of the first pressing mold base 51 are each provided with a fixed guide shaft 54 ​​for guiding, and a spring retaining ring 53 is provided at the lower end surface of the first pressing mold base 51 opposite to the fixed guide shaft 54, the lower end surfaces of the four groups of fixed guide shafts 54 are slidably clamped with a second pressing mold base 59, and the four corners of the lower end surface of the second pressing mold base 59 are each provided with a limiting clamping shaft 58, two groups of limiting inserts 52 are provided near the middle of the lower end surface of the first pressing mold base 51, and a guide groove 57 is provided at the inner end surface of the second pressing mold base 59 opposite to the limiting insert 52, a positioning groove 55 is provided at the center of the lower end surface of the second pressing mold base 59, and a bending device 56 is slidably clamped at the inner end surface of the positioning groove 55.

[0029] The bending device 56 includes a bending punch 564 for support, a return spring 561 is arranged at the top of the rear end face of the bending punch 564, and a fixed slide 562 is fixedly installed at the center of the upper end face of the bending punch 564, and a positioning bevel 563 is symmetrically arranged at the front end face of the bending punch 564.

[0030] The supporting device 6 includes a supporting base plate 65 for supporting, and the upper end surface of the supporting base plate 65 is provided with a profile support 62 for limiting, and the four corners of the upper end surfaces of the processing slide 63 and the supporting base plate 65 are provided with profile supports 62 for supporting, a feeding guide groove 64 is opened in the middle part of the upper end surface of the processing slide 63, and a bending guide groove 61 is opened at the center of the inner end surface of the feeding guide groove 64, and a lower mold bending block 66 is provided at the lower end surface of the processing slide 63 to fit the side wall of the bending guide groove 61.

[0031] The spring retaining ring 53 is fixedly connected to the upper end surface of the second pressing mold seat 59, and the cross-sections of the limit clamping shaft 58 and the fixed guide shaft 54 ​​are both T-shaped. The first pressing mold seat 51 is adapted to the fixed guide shaft 54 ​​through the limit clamping shaft 58 and then slidably clamped on the upper end surface of the second pressing mold seat 59. The fixed guide shaft 54 ​​and the limit clamping shaft 58 are T-shaped, which can ensure the stability of relative sliding between the first pressing mold seat 51 and the second pressing mold seat 59. The four sets of spring retaining rings 53 can provide sufficient elastic force for the subsequent resetting of the first pressing mold seat 51.

[0032] The cross-sections of the fixed slide 562 and the positioning groove 55 are both T-shaped, and the bending device 56 is adapted to the positioning groove 55 through the fixed slide 562 and then slidably clamped on the lower end surface of the second pressing mold seat 59. The positioning groove 55 can provide sufficient limiting basis for the forward bending and subsequent elastic reset of the fixed slide 562.

[0033] The return spring 561 is fixedly connected to the inner wall of the positioning slot 55, and the limiting knife 52 is slidably engaged with the second pressing die seat 59 through the guide slot 57. The guide slot 57 can provide sufficient guiding basis for the downward movement of the limiting knife 52, thereby improving the guiding stability. The return spring 561 can provide sufficient elastic force for the subsequent resetting of the bending punch 564.

[0034] The lower end face of the limiting insert 52 is opposite to the inclined surface of the positioning bevel 563, and the bending punch 564 is opposite to the bending guide groove 61. When the limiting insert 52 moves downward, it can be guided to the upper part of the positioning bevel 563 through the inclined surface of its body, which is convenient for subsequently driving the positioning bevel 563 to move forward and bend.

[0035] Working principle: Before use, the user can position the PET workpiece with the required negative folding angle into the feeding guide groove 64 through the external material guide device. The PET workpiece is an upper open workpiece, which can provide sufficient guiding foundation for the bending device 56 to pass through the PET sheet. During processing, the punching cylinder 2 can drive the limit push rod 4 to move downward, and the limit push rod 4 can drive the processing device 5 to move downward as a whole until the four groups of limit clamping shafts 58 at the bottom of the second pressing die seat 59 and the upper part of the processing slide 63 complete the limit. At this time, the first pressing die seat 51 and the second pressing die seat 59 can bend the PET workpiece 90 degrees through the bending punch 564, and then the limiting push rod 4 continues to drive the first pressing die seat 51 to move downward. At this time, the first pressing die seat 51 can be limited to the inclined surface of the positioning bevel 563 by the limiting insert 52, so that the positioning bevel 563 can be moved toward the lower die bending block 66 under the limiting of the bevel edge of the limiting insert 52, thereby synchronously completing the negative angle bending of the PET workpiece and completing the processing operation.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PET disposable negative angle folding device, comprising a supporting device (6) for supporting, a supporting card plate (3) for limiting is fixedly arranged at the center of the upper end surface of the supporting device (6), and a punching cylinder (2) for guiding is fixedly arranged at the center of the upper end surface of the supporting card plate (3), characterized in that: The inner end surface of the punching cylinder (2) is slidably engaged with a limit push rod (4) for positioning, and a guide slide shaft (1) for supporting is symmetrically arranged on the lower end surface of the support clamping plate (3), and a processing device (5) is slidably engaged with the lower end surface of the support clamping plate (3) via the guide slide shaft (1); The processing device (5) comprises a first pressing die seat (51) for support, the four corners of the lower end surface of the first pressing die seat (51) are each provided with a fixed guide shaft (54) for guiding, and a spring clamping ring (53) is provided at the lower end surface of the first pressing die seat (51) directly opposite to the fixed guide shaft (54), and the lower end surfaces of the four groups of the fixed guide shafts (54) are slidably clamped with a second pressing die seat (59), and the lower end of the second pressing die seat (59) is provided with a spring clamping ring (53). Limiting clamping shafts (58) are arranged at the four corners of the surface, two groups of limiting inserts (52) are arranged near the middle of the lower end surface of the first pressing mold base (51), and a guide slide groove (57) is arranged at the inner end surface of the second pressing mold base (59) opposite to the limiting inserts (52), a positioning slide groove (55) is arranged at the center of the lower end surface of the second pressing mold base (59), and a bending device (56) is slidably clamped at the inner end surface of the positioning slide groove (55); The bending device (56) comprises a bending punch (564) for support, a return spring (561) is arranged at the top of the rear end face of the bending punch (564), a fixed slide seat (562) is fixedly installed at the center of the upper end face of the bending punch (564), and a positioning wedge (563) is symmetrically arranged at the front end face of the bending punch (564); The support device (6) comprises a support base plate (65) for supporting, the upper end surface of the support base plate (65) is provided with a profile support (62) for limiting, and profile supports (62) for supporting are provided at four corners of the upper end surfaces of the processing slide (63) and the support base plate (65), a feeding guide groove (64) is provided at the middle of the upper end surface of the processing slide (63), and a bending guide groove (61) is provided at the center of the inner end surface of the feeding guide groove (64), and a lower mold bending block (66) is provided at the lower end surface of the processing slide (63) in contact with the side wall of the bending guide groove (61).

2. A PET disposable negative angle folding device according to claim 1, characterized in that: The spring clamping ring (53) is fixedly connected to the upper end surface of the second pressing mold base (59), and the cross-sections of the limit clamping shaft (58) and the fixed guide shaft (54) are both arranged in a T-shape. The first pressing mold base (51) is adapted to the fixed guide shaft (54) through the limit clamping shaft (58) and is then slidably clamped on the upper end surface of the second pressing mold base (59).

3. A PET disposable negative angle folding device according to claim 1, characterized in that: The cross-sections of the fixed slide (562) and the positioning slide groove (55) are both T-shaped, and the bending device (56) is adapted to the positioning slide groove (55) through the fixed slide (562) and is then slidably engaged with the lower end surface of the second pressing mold seat (59).

4. A PET disposable negative angle folding device according to claim 1, characterized in that: The return spring (561) is fixedly connected to the inner wall of the positioning slide groove (55), and the limiting insert (52) is slidably engaged with the second pressing mold base (59) via the guide slide groove (57).

5. A PET disposable negative angle folding device according to claim 4, characterized in that: The lower end surface of the limiting insert (52) is directly opposite to the inclined surface of the positioning bevel (563), and the bending punch (564) is directly opposite to the bending guide groove (61).

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