Cutting device capable of reducing packaging bag cutting deviation

Abstract

The utility model discloses a cutting device capable of reducing packaging bag cutting deviation. The cutting device comprises a rack, a cutting assembly arranged on the rack and a first conveying roller. The cutting assembly comprises a fixing plate, a connecting plate, a cutter and a pressing plate, the fixing plate is fixed to the rack, a hydraulic cylinder is arranged on the fixing plate, and a telescopic rod of the hydraulic cylinder penetrates through the fixing plate to be connected with the connecting plate; the lower end of the connecting plate is fixed to the cutter, and the cutter is located over the first conveying roller. An inserting groove is formed in the connecting plate, a guide rod is inserted into the inserting groove, an anti-falling block is arranged on the guide rod, and the lower end of the anti-falling block abuts against the connecting plate; the lower end of the guide rod is fixed to the pressing plate, the pressing plate is provided with a receding opening for the cutter to penetrate through, when the packaging bag is cut, the hydraulic cylinder can drive the pressing plate to abut against the packaging bag on the first conveying roller, and after the packaging bag abuts against the pressing plate, the cutter can penetrate through the receding opening to cut the packaging bag, so that when the cutter cuts the packaging bag, the position of the packaging bag does not deviate, and the packaging bag can be conveniently cut. And the problem of cutting deviation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting, in particular to a cutting device for reducing cutting deviation of packaging bags. Background Art

[0002] Packaging bags are common items in people's daily life. In order to meet the production needs of packaging bags, packaging bag cutting devices have emerged.

[0003] The existing packaging bag cutting device comprises a frame, a cutter arranged on the frame and a conveying roller. When in use, the packaging bag is conveyed to the bottom of the cutter by the conveying roller, and then the cutter moves downward to complete the cutting of the packaging bag.

[0004] With respect to the above technical conditions, when the cutter moves downward to cut the packaging bag, the packaging bag will be displaced due to the drive of the cutter, which will lead to cutting deviation of the packaging bag and cause cost waste.

[0005] Based on this, the utility model designs a cutting device for reducing the cutting deviation of packaging bags to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a cutting device which can reduce the cutting deviation of packaging bags, so as to solve the above technical problems.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A cutting device for reducing cutting deviation of packaging bags comprises a frame, a cutting assembly arranged on the frame, and a first conveying roller for conveying packaging bags, a buffer layer is arranged on the surface of the first conveying roller, and the first conveying roller is located below the cutting assembly; the cutting assembly comprises a fixed plate, a connecting plate, a cutter, and a pressing plate, the fixed plate is fixed on the frame, a hydraulic cylinder is arranged on the fixed plate, and a telescopic rod of the hydraulic cylinder passes through the fixed plate and is fixedly connected to the connecting plate; the lower end of the connecting plate is fixedly connected to the cutter, and the cutter is located directly above the first conveying roller; a plug-in slot is provided on the connecting plate, a guide rod is inserted in the plug-in slot, an anti-slip block is arranged on the guide rod, and the lower end of the anti-slip block abuts on the connecting plate; the lower end of the guide rod is fixedly connected to the pressing plate, and a clearance opening for the cutter to pass through is arranged on the pressing plate; when the telescopic rod of the hydraulic cylinder is extended, the pressing plate abuts against the packaging bag on the first conveying roller; after the pressing plate abuts against the packaging bag, the cutter passes through the clearance opening to cut the packaging bag.

[0009] As a further improvement, a tightening strip is provided under the pressing plate.

[0010] As a further improvement, two pressing bars are provided, and when the cutter is cutting the packaging bag, the pressing bars are located on both sides of the cutter and pressed against the packaging bag.

[0011] As a further improvement, a spring is sleeved on the guide rod, and the spring abuts between the connecting plate and the pressing plate.

[0012] By adopting the above technical solution, the utility model has the following beneficial technical effects:

[0013] The cutting device for reducing cutting deviation of packaging bags of the present application, when in use, the telescopic rod of the hydraulic cylinder will drive the connecting plate, the cutter, and the pressure plate to move downward as a whole, until the pressure plate is pressed against the packaging bag on the first conveyor roller; after the pressure plate is pressed against the packaging bag, the telescopic rod of the hydraulic cylinder will drive the connecting plate and the cutter to continue to move downward, and at this time the cutter will pass through the clearance opening to cut the packaging bag. When the present application is cutting the packaging bag, the pressure plate will be pressed against the packaging bag, so that the position of the packaging bag will not shift when the cutter is cutting the packaging bag, reducing the problem of cutting deviation. The problem of the existing packaging bag shifting in position when driven by the cutter is improved, which in turn causes the problem of cutting deviation of the packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is an assembly diagram of two conveying rollers of the utility model;

[0017] Figure 3 This is a schematic diagram of the installation structure of the cutter of the utility model;

[0018] Figure 4 yes Figure 3 A magnified view of middle;

[0019] Figure 5 It is a schematic diagram of the structure in which the tightening strip in the utility model abuts against the packaging bag;

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 1. Frame; 2. First conveying roller; 21. Buffer layer; 3. Fixed plate; 4. Connecting plate; 5. Cutter; 6. Pressing plate; 61. Clearance opening; 7. Hydraulic cylinder; 71. Telescopic rod; 8. Guide rod; 9. Anti-slip block; 10. Packaging bag; 11. Second conveying roller; 12. Tightening strip; 13. Spring; 14. Support table. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The following is combined with Figure 1-5 This application is described in further detail.

[0024] The utility model provides a cutting device for reducing cutting deviation of packaging bags, comprising a frame 1, a cutting assembly arranged on the frame 1, and a first conveying roller 2 for conveying packaging bags 10, wherein a buffer layer 21 is arranged on the surface of the first conveying roller 2 to prevent a cutter 5 from being damaged when cutting the packaging bags 10. The first conveying roller 2 is located below the cutting assembly so that the cutting assembly can cut the packaging bags 10 on the first conveying roller 2.

[0025] Furthermore, the cutting assembly includes a fixed plate 3, a connecting plate 4, a cutter 5, and a pressing plate 6. The fixed plate 3 is fixed on the frame 1. The fixed plate 3 is provided with a hydraulic cylinder 7. The telescopic rod 71 of the hydraulic cylinder 7 passes through the fixed plate 3 and is fixedly connected to the connecting plate 4. The lower end of the connecting plate 4 is fixedly connected to the cutter 5, and the cutter 5 is located directly above the first conveying roller 2. The connecting plate 4 is provided with a plug-in slot, and a guide rod 8 is plugged into the plug-in slot. The guide rod 8 is provided with an anti-slip block 9, and the lower end of the anti-slip block 9 abuts against the connecting plate 4. The anti-slip block 9 is used to prevent the connecting plate 4 from sliding downward along the guide rod 8 under the action of gravity.

[0026] Furthermore, the lower end of the guide rod 8 is fixedly connected to the pressing plate 6, and a clearance opening 61 is provided on the pressing plate 6 for the cutter 5 to pass through; when the telescopic rod 71 of the hydraulic cylinder 7 is extended (the extension direction of the telescopic rod 71 of the hydraulic cylinder 7 is close to the first conveying roller 2), the pressing plate 6 is pressed against the packaging bag 10 on the first conveying roller 2; after the pressing plate 6 is pressed against the packaging bag 10, the cutter 5 passes through the clearance opening 61 to cut the packaging bag 10. When the device of the utility model cuts the packaging bag 10, the hydraulic cylinder 7 will drive the pressing plate 6 to press against the packaging bag 10. After the packaging bag 10 is pressed, the cutter 5 will pass through the clearance opening 61 to cut the packaging bag 10. The pressing plate 6 is pressed against the packaging bag 10, so that when the cutter 5 cuts the packaging bag 10, the position of the packaging bag 10 will not be offset, thereby reducing the problem of cutting deviation.

[0027] Furthermore, it also includes a second conveying roller 11, which is at the same height as the first conveying roller 2, and both conveying rollers are driven by a motor. A support platform 14 is provided between the second conveying roller 11 and the first conveying roller 2, and the support platform 14 is used to support the packaging bag 10. During the conveying process, the packaging bag 10 passes through the second conveying roller 11, the support platform, and the first conveying roller 2 in sequence, and the second conveying roller 11, the support platform, and the first conveying roller 2 convey the packaging bag 10 as a whole, so that the packaging bag 10 can be stably conveyed.

[0028] Furthermore, a pressing bar 12 is provided below the pressing plate 6, and two pressing bars 12 are provided. When the cutter 5 is cutting the packaging bag 10, the pressing bars 12 are located on both sides of the cutter 5 and pressed against the packaging bag 10. When the packaging bag 10 needs to be cut, the pressing bar 12 will move down to the position of the first conveyor roller 2 and press against the first conveyor roller 2, thereby pressing against the packaging bag 10 on the first conveyor roller 2, so that the packaging bag 10 is closely attached to the surface of the first conveyor roller 2, preventing the packaging bag 10 from bulging and causing cutting deviation.

[0029] Furthermore, a spring 13 is sleeved on the guide rod 8, and the spring 13 is abutted between the connecting plate 4 and the pressing plate 6. When the packaging bag 10 is pressed tightly, the telescopic rod 71 of the hydraulic cylinder 7 drives the connecting plate 4 and the cutter 5 to continue to move downward (the downward movement of the present invention is also the direction close to the first conveying roller 2). At this time, the downward movement of the connecting plate 4 will squeeze the spring 13, so that the cutter 5 can pass through the clearance opening 61 of the pressing plate 6 to cut the packaging bag 10.

[0030] The following is the overall working principle of the utility model:

[0031] When it is necessary to cut the packaging bag 10 (it should be noted here that the packaging bag 10 is connected together before being cut, and is a whole packaging bag 10; after cutting, the packaging bag 10 is scattered): first place a whole packaging bag 10 on the second conveying roller 11 of the device, and then the packaging bag 10 is driven by the second conveying roller 11 and transported to the first conveying roller 2 through the support platform 14. At this time, the telescopic rod 71 of the hydraulic cylinder 7 extends, driving the connecting plate 4, the cutter 5, the pressing plate 6, and the tightening strip 12 to move downward as a whole, until the tightening strip 12 presses the packaging bag 10; after the packaging bag 10 is tightened, the telescopic rod 71 of the hydraulic cylinder 7 will drive the connecting plate 4 and the cutter 5 to continue to move downward. At this time, the downward movement of the connecting plate 4 will squeeze the spring 13, so that the cutter 5 can pass through the yielding opening 61 of the pressing plate 6 to cut the packaging bag 10 on the first conveying roller 2. When the packaging bag 10 is cut, the pressing strip 12 is pressed against the packaging bag 10 , so that the position of the packaging bag 10 will not be offset when the cutter 5 cuts the packaging bag 10 , thereby reducing the problem of cutting deviation.

[0032] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0034] 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 cutting device for reducing cutting deviation of packaging bags, characterized in that: The invention comprises a frame (1), a cutting assembly arranged on the frame (1), and a first conveying roller (2) for conveying packaging bags (10), wherein a buffer layer (21) is arranged on the surface of the first conveying roller (2), and the first conveying roller (2) is located below the cutting assembly; the cutting assembly comprises a fixing plate (3), a connecting plate (4), a cutting knife (5), and a pressing plate (6); the fixing plate (3) is fixed on the frame (1), a hydraulic cylinder (7) is arranged on the fixing plate (3), and a telescopic rod (71) of the hydraulic cylinder (7) passes through the fixing plate (3) and is fixedly connected to the connecting plate (4); the lower end of the connecting plate (4) is fixedly connected to the cutting knife (5), and the cutting knife (5) is located at the bottom of the fixing plate (3). The connecting plate (4) is provided with a plug-in slot, a guide rod (8) is plugged into the plug-in slot, an anti-slip block (9) is provided on the guide rod (8), and the lower end of the anti-slip block (9) abuts against the connecting plate (4); the lower end of the guide rod (8) is fixedly connected to the pressing plate (6), and the pressing plate (6) is provided with a clearance opening (61) for the cutter (5) to pass through; when the telescopic rod (71) of the hydraulic cylinder (7) is extended, the pressing plate (6) abuts against the packaging bag (10) on the first conveying roller (2); after the pressing plate (6) abuts against the packaging bag (10), the cutter (5) passes through the clearance opening (61) to cut the packaging bag (10).

2. A cutting device for reducing cutting deviation of packaging bags according to claim 1, characterized in that: A tightening strip (12) is provided below the pressing plate (6).

3. A cutting device for reducing cutting deviation of packaging bags according to claim 2, characterized in that: Two of the pressing strips (12) are provided. When the cutter (5) cuts the packaging bag (10), the pressing strips (12) are located on both sides of the cutter (5) and pressed against the packaging bag (10).

4. A cutting device for reducing cutting deviation of packaging bags according to claim 1, characterized in that: The guide rod (8) is sleeved with a spring (13), and the spring (13) abuts between the connecting plate (4) and the pressing plate (6).

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