Rear folding mechanism of bag body folding machine and full-automatic bag body folding machine

Abstract

The utility model belongs to the technical field of bag body folding, and discloses a rear folding mechanism of a bag body folding machine and a full-automatic bag body folding machine, the rear folding mechanism comprises a rack, an upper supporting plate fixedly arranged on the rack, a lower supporting plate fixedly arranged on the upper supporting plate and a bag folding mechanism arranged above the upper supporting plate, the first bag pressing mechanism is located above the upper supporting plate, the second bag pressing mechanism is located above the lower supporting plate, and the second bag pressing mechanism comprises a lifting pressing plate and a pressing strip detachably arranged on the lifting pressing plate. The full-automatic bag body folding machine comprises a front folding mechanism, the rear folding mechanism and a bundling mechanism which are all fixedly arranged on a rack. The hand bag folding machine can fold various bag bodies with different thicknesses, achieves multiple purposes, meets different production requirements, and is convenient to use, high in universality and suitable for folding hand bags.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of bag folding, and relates to a rear folding mechanism of a bag folding machine, and further relates to a full-automatic bag folding machine. BACKGROUND

[0002] The bag folding machine mainly comprises a folding mechanism, a bag pressing mechanism and a bundling mechanism, that is, a bunch of bags is folded into several folds for convenient packaging and transportation, wherein the bag pressing mechanism is used to press the non-folded part during folding to prevent the bags from moving during folding. The existing technology is that the bag pressing mechanism after three folds is driven by a cylinder to move the lifting press plate, the lifting press plate is fixed with a pressing strip, the pressing strip is pressed in the middle of the folded bags, and then the bundling mechanism is used to stretch the rubber band and wrap it around the pressing part of the bags. During bundling, the bundling mechanism moves along the length direction of the folded bags, the rubber band is dropped at the pressing part, in order to ensure that the rubber band can be smoothly dropped from the bundling mechanism, the structure for making the rubber band drop off needs to be in contact with the edge of the stretched rubber band, therefore, the space between the lifting press plate and the lower supporting plate cannot be adjusted, and thus only one kind of thickness of bags can be pressed. However, the number of a bunch of bags required by different users is different, which results in different thicknesses of the folded bags, and the fixed-stroke pressing block cannot adapt to the bags with different thicknesses, so that one bag folding machine can only fold the bags with one thickness, and the universality is poor. SUMMARY

[0003] In order to solve the above problems in the prior art, the utility model aims to provide a rear folding mechanism of a bag folding machine and a full-automatic bag folding machine, so as to fold bags with multiple thicknesses and have wide universality.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A rear folding mechanism of a bag folding machine, comprising a rack, an upper supporting plate fixedly arranged on the rack, a lower supporting plate fixedly arranged on the upper supporting plate, and a bag folding mechanism arranged above the upper supporting plate, further comprising a first bag pressing mechanism arranged above the upper supporting plate and a second bag pressing mechanism arranged above the lower supporting plate, wherein the second bag pressing mechanism comprises a lifting press plate and a pressing strip detachably arranged on the lifting press plate.

[0006] As a limitation of the utility model, the first bag pressing mechanism comprises a cross beam, a first cylinder fixedly arranged on the cross beam, and a pressing block fixedly arranged on the telescopic rod of the first cylinder, and the cross beam is assembled on the rack through a lifting device.

[0007] As a further limitation of the utility model, the lifting device is any one of a lifting cylinder, a hydraulic cylinder or a motor lead screw structure.

[0008] As another limitation of the utility model, the lifting pressure plate is provided with a dovetail groove, the pressure strip is provided with a dovetail block inserted into the dovetail groove, and the lifting pressure plate is provided with a positioning part for locking the pressure strip.

[0009] As a limitation of the utility model, the positioning part comprises a threaded hole provided on the lifting pressure plate and penetrating through the dovetail groove, and a bolt arranged in the threaded hole.

[0010] As a third limitation of the utility model, the lower supporting plate is fixedly provided with a second air cylinder, and the lifting pressure plate is fixedly arranged on the telescopic rod of the second air cylinder.

[0011] A full-automatic bag folding machine comprises a front folding mechanism, a rear folding mechanism and a bundling mechanism, which are all fixedly arranged on a rack.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] (1) The pressure strip in the second bag pressing mechanism is detachable, the distance from the pressure strip to the lower supporting plate can be changed by replacing pressure strips with different thicknesses, the second bag pressing mechanism can press the folded bags with different thicknesses, different production requirements can be met, the production cost is greatly reduced, the structure is simple, the use is convenient, and the versatility is high.

[0014] (2) The cross beam moves up and down through the lifting device, cooperates with the first air cylinder to adjust the stroke, can meet the requirement of more folding thicknesses, can ensure the synchronous movement of the first air cylinder in the multi-station structure, the adjustment accuracy is higher, and adjustment deviation is prevented.

[0015] (3) The lifting air cylinder, hydraulic oil cylinder or motor screw structure drives the cross beam to lift, the manufacturing cost is low, and the adjustment accuracy is high.

[0016] (4) The pressure strip is installed in the form of the dovetail groove, the structure is simple, the stability is high, the bolt positioning is convenient to disassemble and assemble.

[0017] (5) The folding machine can realize one machine with multiple functions, a plurality of folding machines for folding bags with different thicknesses do not need to be purchased, and the production cost is greatly reduced.

[0018] In conclusion, the utility model can fold bags with different thicknesses, realizes one machine with multiple functions, meets different production requirements, is convenient to use, has high versatility, and is suitable for folding handbags. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be further described in detail in combination with the drawings and specific embodiments.

[0020] Figure 1 It is a front view structural schematic diagram of the utility model embodiment 1.

[0021] Figure 2 This is a three-dimensional structural diagram of the first state of Embodiment 1 of this utility model;

[0022] Figure 3 This is a three-dimensional structural diagram of the second state of Embodiment 1 of this utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the first pressure bag structure in Embodiment 1 of this utility model;

[0024] Figure 5 This is a schematic diagram of the assembly explosion of the lifting pressure plate and pressure strip in Embodiment 1 of this utility model;

[0025] Figure 6 This is a three-dimensional structural diagram of Embodiment 2 of the present invention.

[0026] In the diagram: 01, rear folding mechanism; 02, front folding mechanism; 03, bundling mechanism;

[0027] 1. Frame; 2. Upper support plate; 3. Lower support plate; 4. Bag folding mechanism; 5. First bag pressing mechanism; 51. Crossbeam; 52. First cylinder; 53. Pressing block; 6. Support; 7. Lifting cylinder; 8. Second bag pressing mechanism; 81. Second cylinder; 82. Lifting pressure plate; 821. Dovetail groove; 83. Pressing strip; 831. Dovetail block; 9. Threaded hole; Detailed Implementation

[0028] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0029] Example 1: Rear Folding Mechanism of a Bag Folding Machine

[0030] like Figures 1-3As shown, including rack 1, upper support plate 2, lower support plate 3, bag folding mechanism 4, first bag pressing mechanism 5 and second bag pressing mechanism 8. The upper support plate 2 and the lower support plate 3 are both fixed on the rack 1, the upper support plate 2 is located above, used for receiving the folded bag, the lower support plate 3 is located below, used for receiving the folded bag, and the position is baled. The bag folding mechanism 4 is located above the upper support plate 2, including folding plate and lifting sliding mechanism driving folding plate movement, lifting sliding mechanism is assembled on the rack 1, driving folding plate moves along the folding direction, at the same time makes it along the folding vertical direction, this part is prior art, will not be described in detail. The first bag pressing mechanism 5 is located above the upper support plate 2, cooperates with the bag folding mechanism 4, after the bag is folded, the first bag pressing mechanism 5 is pressed, then the bag is folded. The second bag pressing mechanism 8 is located above the lower support plate 3 and below the upper support plate 2, cooperates with the baling mechanism 03 of the whole machine, after the bag is folded, the second bag pressing mechanism 8 is pressed, then the rubber band is sleeved on the pressing part through the baling mechanism 03. The above structure is prior art, will not be described in detail. The present application is to improve the double station three fold bag folding machine, the main improvement point is that the first bag pressing mechanism 5 can adjust the height, so that it can press the folded bag with different thickness, and the second bag pressing mechanism 8 can adaptively change the thickness of the pressing during baling, which will be described below.

[0031] As shown in Figure 4 The first bag pressing mechanism 5 includes beam 51, first cylinder 52 and pressing block 53, four first cylinders 52 are arranged, and the pressing block 53 is fixed on the telescopic rod of the first cylinder 52. The rack 1 is fixed with L-shaped support 6 on both sides, and the lifting device is fixed on the two supports 6. The two ends of the beam 51 are fixed on the two lifting devices respectively, the lifting of the lifting device drives the lifting of the beam 51, and then drives the lifting of the first cylinder 52 and the pressing block 53 on the beam 51, so as to change the distance between the pressing block 53 and the folded bag. The lifting device is any one of lifting cylinder 7, hydraulic cylinder or motor lead screw structure, and the lifting cylinder 7 is adopted in the embodiment. The lifting cylinder 7 is fixed on the L-shaped support 6, and the telescopic rod of the lifting cylinder 7 is fixedly connected with the beam 51. When the thickness of the bag pressing needs to be adjusted, the stroke of the first cylinder 52 can be directly adjusted to change the distance between the pressing block 53 and the upper support plate 2; the stroke of the lifting cylinder 7 can also be directly adjusted to change the height of the beam 51 and the distance between the pressing block 53 and the upper support plate 2, so as to ensure the consistency of the adjustment and improve the accuracy of the adjustment; if the adjusted thickness is large and exceeds the stroke range of the first cylinder 52 or the lifting cylinder 7, the stroke of the first cylinder 52 and the lifting cylinder 7 can also be adjusted at the same time to meet the folding thickness requirement.

[0032] As shown in Figure 3 and Figure 5As shown, the second bag pressing mechanism 8 comprises a lifting pressing plate 82 and a pressing strip 83 detachably arranged on the lifting pressing plate 82, and a second air cylinder 81 is fixedly arranged on the lower supporting plate 3, and the lifting pressing plate 82 is fixedly arranged on the second air cylinder 81 and moves towards or away from the lower supporting plate 3 along with the second air cylinder 81. The lifting pressing plate 82 is provided with a dovetail groove 821 extending inward from the end face of the lifting pressing plate 82, and the pressing strip 83 is provided with a dovetail block 831 matched with the dovetail groove 821, and the dovetail block 831 is inserted into the dovetail groove 821 to enable the pressing strip 83 to be mounted on the lifting pressing plate 82. The lifting pressing plate 82 is provided with a positioning portion for locking the position of the pressing strip 83, and after the pressing strip 83 is mounted, the pressing strip 83 is prevented from moving along the dovetail groove 821. The positioning portion comprises a threaded hole 9 and a bolt, the threaded hole 9 is arranged through the thickness direction of the dovetail groove 821 and is arranged at a position close to the end of the lifting pressing plate 82 to prevent the dovetail block 831 from sliding out of the dovetail groove 821. The bolt 9 is threadedly connected in the threaded hole 9, and the rod end of the bolt 9 protrudes out of the dovetail groove 821 to block the dovetail block 831.

[0033] When the bag body moves to the rear folding mechanism 01, it has completed a folding, at this time, the bag folding mechanism 4 of the rear folding mechanism 01 cooperates with the whole machine to complete the second folding of the bag body. When folding, the bag body moves to the upper supporting plate 2, the first air cylinder 52 in the first bag pressing mechanism 5 drives the pressing block 53 to fall down, and the folded bag body is pressed tightly to prevent the bag body from moving when the bag folding mechanism 4 is folded. After the second folding is completed, the first bag pressing mechanism 5 is raised, and the whole machine is folded three times. After the third folding is completed, the bag body falls on the lower supporting plate 3, the second air cylinder 81 in the second bag pressing mechanism 8 drives the pressing strip 83 on the lifting pressing plate 82 to move downward, and the third folded bag body is pressed tightly. The bundling mechanism 03 of the whole machine completes the bundling by sleeving the rubber band at the position pressed tightly by the pressing strip 83. The above is the action process of the folding machine in the prior art. In order to facilitate the understanding of the improvement points of the present embodiment, the following steps are adjusted when the number of bag bodies to be folded changes from 100 to 200:

[0034] The lifting air cylinder 7 is started, the thickness of the pressing block 53 after the first air cylinder 52 is ejected is matched with the thickness of the bag body after the first folding, and the pressing strip 83 of different thickness is replaced, so that the thickness of the pressing strip 83 after the second air cylinder 81 is ejected is matched with the thickness of the bag body after the third folding. Several pressing strips 83 of different thicknesses can be prepared to meet different production needs. According to the adjustment process of the first bag pressing mechanism 5, the stroke of the first air cylinder 52 can be changed alone or the strokes of the first air cylinder 52 and the lifting air cylinder 7 can be changed simultaneously.

[0035] Embodiment 2: Full-automatic bag body folding machine

[0036] As Figure 6As shown, the embodiment includes the front folding mechanism 02, the rear folding mechanism 02 of embodiment 1 and the bundling mechanism 03 which are all fixed on the frame 1. The embodiment is an improvement of the three-fold bag body folding machine, and the rest is the prior art. After the improvement, the bag body of different thickness can be folded, and the versatility is stronger.

[0037] It should be noted that the above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments, or equivalently replace some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A rear folding mechanism of a bag folding machine, comprising a frame, an upper support plate fixed to the frame, a lower support plate fixed to the upper support plate, and a bag folding mechanism disposed above the upper support plate, characterized in that: It also includes a first bag-pressing mechanism located above the upper pallet and a second bag-pressing mechanism located above the lower pallet. The second bag-pressing mechanism includes a lifting pressure plate and a pressure strip detachably mounted on the lifting pressure plate.

2. The rear folding mechanism of the bag folding machine according to claim 1, characterized in that: The first bag pressing mechanism includes a crossbeam, a first cylinder fixed on the crossbeam, and a pressing block fixed on the telescopic rod of the first cylinder. The crossbeam is assembled on the frame through a lifting device.

3. The rear folding mechanism of the bag folding machine according to claim 2, characterized in that: The lifting device can be any one of a lifting cylinder, a hydraulic cylinder, or a motor screw structure.

4. The rear folding mechanism of the bag folding machine according to any one of claims 1-3, characterized in that: The lifting pressure plate is provided with a dovetail groove, and the pressure strip is provided with a dovetail block inserted into the dovetail groove. The lifting pressure plate is provided with a positioning part for locking the pressure strip.

5. The rear folding mechanism of the bag folding machine according to claim 4, characterized in that: The positioning part includes a threaded hole on the lifting pressure plate that passes through the dovetail groove and a bolt installed in the threaded hole.

6. The rear folding mechanism of the bag folding machine according to any one of claims 1-3 and 5, characterized in that: A second cylinder is fixedly mounted on the lower support plate, and the lifting pressure plate is fixedly mounted on the telescopic rod of the second cylinder.

7. A fully automatic bag folding machine, characterized in that: It includes a front folding mechanism fixed on the frame, a rear folding mechanism of any one of claims 1-6, and a bundling mechanism.

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