Strip package cutting device

Abstract

The utility model discloses a carton cut-off device which comprises a first installation frame and a second installation frame which can be relatively close to and away from each other, a plurality of cutter pieces are arranged on the second installation frame, a plurality of cutter receiving pieces are arranged on the first installation frame, and the cutter pieces and the cutter receiving pieces are arranged in a one-to-one correspondence mode. The cutter pieces or the cutter receiving pieces are arranged in a stepped mode in the direction perpendicular to the relative movement direction of the first installation frame and the second installation frame. According to the carton cut-off device, due to the fact that the cutter pieces or the cutter receiving pieces are arranged in the step mode in the direction perpendicular to the relative movement direction of the first installation frame and the second installation frame, when the cutter pieces and the cutter receiving pieces are close to each other, the cutting-in time sequence difference exists between the cutter pieces and the cutter receiving pieces which are different in cutting-in time sequence. Different cartons can be cut in asynchronously, cutting resistance is reduced, smooth cutting is guaranteed, the cutter clamping probability is reduced, and cutting efficiency and stability are high.

Description

Technical Field

[0001] The utility model relates to the technical field of food and medicine packaging machinery and equipment, in particular to a strip bag cutting device. Background Art

[0002] In the strip bag production process, the cutter device divides the continuous material bags into individual packaged products after bag making or bagging and sealing. At present, the cutting position of the cutter device is usually fixed by rigid connection, and as the number of cutting columns increases, the mounting surface becomes longer, and the longer the mounting surface is, the more difficult it is to ensure the manufacturing accuracy. The knife is more likely to get stuck during assembly, and it is not easy to assemble. There is no front and back cutting sequence, which can easily increase the cutting resistance and cause the cutting action to be poor, and increase the probability of the knife getting stuck during the production cutting action, which not only affects the assembly efficiency, but also affects the production efficiency. In serious cases, it may also cause damage to the knife and cause personal injury accidents.

[0003] The Chinese patent document with publication number CN214113106U discloses a cantilever cutting mechanism for a bagging machine, wherein a cutting die is provided on a cutting blade push plate, and a plurality of cutting dies are provided on the cutting die, and each cutting die is spaced apart along the length direction of the cutting blade push plate, so that a plurality of bagging strips can be cut at one time. The applicant has found that there are some disadvantages in this technical solution: the cutting mechanism cuts a plurality of bagging strips at the same time, the cutting resistance is large, the knife is easily stuck, and the stability during bag cutting is reduced. Utility Model Content

[0004] The utility model solves the problems existing in the prior art in use and provides a strip bag cutting device which has the advantages of non-simultaneous cutting of different strip bags, low knife jamming probability, high cutting efficiency and good stability.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A strip bag cutting device comprises a first mounting frame and a second mounting frame which can be relatively close to and far away from each other, the second mounting frame is provided with a plurality of cutting pieces, the first mounting frame is provided with a plurality of cutting pieces, each of the cutting pieces and each of the cutting pieces are arranged in a one-to-one correspondence, and each of the cutting pieces or each of the cutting pieces is arranged in a stepped manner in a direction perpendicular to the relative movement direction of the first mounting frame and the second mounting frame.

[0007] As a further improvement of the above technical solution:

[0008] The second mounting frame is provided with a plurality of mounting parts, each of the mounting parts is arranged in a step-like manner in a direction perpendicular to the moving direction of the second mounting frame, and the cutting blade is respectively arranged on each of the mounting parts.

[0009] The mounting portions are arranged symmetrically, and the distances between the mounting portions and the first mounting frame increase or decrease from both sides to the middle.

[0010] A cutting edge with a middle portion protruding toward the cutting member is provided on one side of the cutting member facing the cutting member.

[0011] The cutter piece is mounted on the mounting portion through a floating mechanism.

[0012] The floating mechanism comprises a self-centering nut, one end of which is threadedly connected to the mounting portion, and the other end of which is movably sleeved to the cutting piece.

[0013] The first mounting frame is fixedly arranged, and the second mounting frame is movably arranged on the first mounting frame and is connected with a driving mechanism.

[0014] The driving mechanism includes a transmission assembly and a driving assembly. The transmission assembly includes a crank and a connecting rod. The crank is rotatably arranged on the first mounting frame and connected to the driving assembly. One end of the connecting rod is hinged to the crank and the other end is hinged to the second mounting frame.

[0015] At least two ends of the second mounting frame are provided with sliding rods, the sliding rods are slidably arranged on the first mounting frame, and each of the sliding rods is connected to the driving assembly through a transmission assembly.

[0016] The driving assembly comprises a driving member and a rotating shaft. The rotating shaft is rotatably arranged on the first mounting frame and connected to the driving member. Each of the cranks is arranged on the rotating shaft.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The strip bag cutting device of the utility model has each cutting piece or each cutting piece arranged in a stepped manner in a direction perpendicular to the relative movement direction of the first mounting frame and the second mounting frame. Therefore, when each cutting piece and each cutting piece are close to each other, different cutting pieces and cutting pieces have different cutting sequences, thereby achieving non-simultaneous cutting of different strip bags, reducing cutting resistance, ensuring smooth cutting, reducing the probability of knife jamming, and achieving high cutting efficiency and good stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the strip bag cutting device of the utility model.

[0020] Figure 2 yes Figure 1 Enlarged axonometric view of point A in the middle.

[0021] Figure 3 It is a front view of the second mounting frame in the strip bag cutting device of the utility model.

[0022] Figure 4 yes Figure 3 Enlarged view of point B in the middle.

[0023] Figure 5 yes Figure 3 Enlarged view of point C in the middle.

[0024] Figure 6 It is a front view of a cutting blade and a cutting blade in a strip bag cutting device of the utility model.

[0025] Legend: 1. First mounting frame; 2. Second mounting frame; 21. Mounting part; 3. Transmission assembly; 31. Crank; 32. Connecting rod; 33. Sliding rod; 34. Guide hole; 35. Clamping block; 4. Driving assembly; 41. Rotating shaft; 42. Driving wheel; 43. Driven wheel; 44. Synchronous belt; 45. Driving member; 51. Cutting member; 52. Cutting member; 521. Cutting edge; 6. Floating mechanism; 61. Self-centering nut. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship 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 cannot be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "assemble", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figures 1 to 6As shown, the strip bag cutting device of this embodiment includes a first mounting frame 1 and a second mounting frame 2 which can be relatively close to and far away from each other, a plurality of cutting members 51 are provided on the second mounting frame 2, and a plurality of cutting members 52 are provided on the first mounting frame 1, and each cutting member 51 and each cutting member 52 are arranged in a one-to-one correspondence, and each cutting member 51 or each cutting member 52 is arranged in a stepped manner in a direction perpendicular to the relative movement direction of the first mounting frame 1 and the second mounting frame 2.

[0031] In the strip bag cutting device of this embodiment, when in operation, the strip bag is placed between the cutting piece 51 and each cutting piece 52, and the first mounting frame 1 and the second mounting frame 2 approach each other, driving each cutting piece 51 and each cutting piece 52 to approach each other, and when the cutting piece 51 and the cutting piece 52 are pressed against each other, the strip bag is cut. In the strip bag cutting device of this embodiment, since each cutting piece 51 or each cutting piece 52 is arranged in a step-like manner in a direction perpendicular to the relative movement direction of the first mounting frame 1 and the second mounting frame 2, when each cutting piece 51 and each cutting piece 52 approach each other, different cutting pieces 51 and cutting pieces 52 cut in at different timings, so that different strip bags are cut in non-simultaneously, the cutting resistance is reduced, the cutting is smooth, the probability of the knife being stuck is reduced, and the cutting efficiency and stability are high.

[0032] Furthermore, if Figure 4 and Figure 5 As shown, in this embodiment, a plurality of mounting portions 21 are provided on the second mounting frame 2, and each mounting portion 21 is arranged in a step-like manner in a direction perpendicular to the moving direction of the second mounting frame 2 (i.e., in a direction perpendicular to the relative movement direction of the first mounting frame 1 and the second mounting frame 2), and the cutting blade 51 is respectively arranged on each mounting portion 21. The cutting blade 51 is arranged on the second mounting frame 2 through the mounting portions 21 arranged in a step-like manner, so that the cutting blade 51 is arranged in a step-like manner, which has a simple structure and is easy to load and unload. Of course, in other embodiments, the cutter receiving member 52 may also be arranged in a step-like manner.

[0033] Furthermore, in this embodiment, the mounting portions 21 are symmetrically arranged, and the distance between the mounting portions 21 and the first mounting frame 1 decreases from both sides to the middle. By symmetrically arranging the mounting portions 21 in a decreasing manner from both sides to the middle, when cutting into the bag, the two ends of the first mounting frame 1 and the second mounting frame 2 first contact and receive force, and then gradually transmit force from both ends to the middle, so that the force is more uniform and the cutting is more stable. Of course, in other embodiments, the distance between the mounting portions 21 and the first mounting frame 1 can also increase from both sides to the middle.

[0034] Furthermore, if Figure 6As shown, in this embodiment, a side of the cutter 52 facing the cutter 51 is provided with a cutter blade 521 protruding in the middle toward the cutter 51. Since the cutter blade 521 is protruding, there is a timing difference when the protruding cutter blade 521 contacts the cutter 51, which can achieve non-simultaneous cutting of the same bag, reduce cutting resistance, ease the degree of blade wear, further reduce the probability of knife jamming, and improve cutting efficiency and stability.

[0035] Furthermore, in this embodiment, the cutter 51 is mounted on the mounting portion 21 via a floating mechanism 6. The floating mechanism 6 can eliminate the error caused by the inconsistent references between the cutter 51 and the cutter receiving member 52, and has strong adaptability.

[0036] Furthermore, in this embodiment, the floating mechanism 6 includes a self-centering nut 61, one end of which is threadedly connected to the mounting portion 21, and the other end is movably connected to the cutter member 51. The distance between the cutter member 51 and the mounting portion 21 can be adjusted by screwing the self-centering nut 61, which has stronger adaptability, simple structure and reliability.

[0037] Furthermore, in this embodiment, the first mounting frame 1 is fixedly arranged, and the second mounting frame 2 is movably arranged on the first mounting frame 1 and connected to a driving mechanism. The driving mechanism drives the second mounting frame 2 to move, so that the first mounting frame 1 and the second mounting frame 2 can be moved closer or farther away, and the structure is simple and reliable.

[0038] Furthermore, in this embodiment, the driving mechanism includes a transmission assembly 3 and a driving assembly 4, the transmission assembly 3 includes a crank 31 and a connecting rod 32, the crank 31 is rotatably arranged on the first mounting frame 1 and connected to the driving assembly 4, one end of the connecting rod 32 is hinged to the crank 31, and the other end is hinged to the second mounting frame 2. The driving assembly 4 drives the crank 31 to rotate, and the rotating crank 31 drives the second mounting frame 2 to move through the connecting rod 32, so that the first mounting frame 1 and the second mounting frame 2 can be moved closer and farther away, and the structure is simple and reliable.

[0039] Furthermore, if Figure 2 As shown, in this embodiment, both ends of the second mounting frame 2 are provided with a slide bar 33, the slide bar 33 is slidably arranged on the first mounting frame 1, and each slide bar 33 is connected to the driving assembly 4 through the transmission assembly 3. By providing the slide bar 33, the second mounting frame 2 moves along the slide bar 33, and the movement is stable. Preferably, in this embodiment, the first mounting frame 1 is also provided with a guide hole 34, and the slide bar 33 is inserted into the guide hole 34, and the movement is more stable. Preferably, in this embodiment, both ends of the second mounting frame 2 are also provided with a clamping block 35, the clamping block 35 is connected to the slide bar 33, and the connecting rod 32 is hinged to the clamping block 35, which has a simple structure and is easy to disassemble.

[0040] Furthermore, in the present embodiment, the driving assembly 4 includes a driving member 45 and a rotating shaft 41. The rotating shaft 41 is rotatably arranged on the first mounting frame 1 and connected to the driving member 45. Each crank 31 is arranged on the rotating shaft 41. In the present embodiment, two cranks 31 are provided and are respectively arranged at the two ends of the rotating shaft 41. The driving member 45 drives the rotating shaft 41 to rotate, and the rotating shaft 41 drives the crank 31 to rotate. The structure is simple and the synchronization is good. Preferably, in the present embodiment, the driving assembly 4 also includes a driving wheel 42, a driven wheel 43, and a synchronous belt 44 wound between the driving wheel 42 and the driven wheel 43. The driving wheel 42 is connected to the driving member 45, and the driven wheel 43 is connected to the rotating shaft 41. The synchronous belt wheel transmission is adopted, and the single-stage transmission has high efficiency, low noise, high stability, and is easy to disassemble and repair.

[0041] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as above in the preferred embodiment, it is not used to limit the utility model. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the utility model by using the methods and technical contents disclosed above without departing from the spirit and technical solution of the utility model, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical solution of the utility model, still fall within the scope of protection of the technical solution of the utility model.

Claims

1. A strip cutting device, characterized in that: The invention comprises a first mounting frame (1) and a second mounting frame (2) which can be relatively moved closer and farther away, the second mounting frame (2) being provided with a plurality of cutting pieces (51), the first mounting frame (1) being provided with a plurality of cutting pieces (52), each of the cutting pieces (51) and each of the cutting pieces (52) being arranged in a one-to-one correspondence, and each of the cutting pieces (51) or each of the cutting pieces (52) being arranged in a stepped manner in a direction perpendicular to the relative movement direction of the first mounting frame (1) and the second mounting frame (2).

2. The strip bag cutting device according to claim 1, characterized in that: The second mounting frame (2) is provided with a plurality of mounting portions (21), each of the mounting portions (21) being arranged in a step-like manner in a direction perpendicular to the moving direction of the second mounting frame (2), and the cutting blade (51) is respectively arranged on each of the mounting portions (21).

3. The strip bag cutting device according to claim 2, characterized in that: The mounting portions (21) are arranged symmetrically, and the distance between the mounting portions (21) and the first mounting frame (1) increases or decreases from both sides to the middle.

4. The strip bag cutting device according to claim 1, characterized in that: The knife receiving member (52) is provided with a knife receiving edge (521) on one side facing the cutting member (51), the middle portion of which protrudes toward the cutting member (51).

5. The strip bag cutting device according to claim 1, characterized in that: The cutter member (51) is mounted on the mounting portion (21) via a floating mechanism (6).

6. The strip bag cutting device according to claim 5, characterized in that: The floating mechanism (6) comprises a self-centering nut (61), one end of which is threadedly connected to the mounting portion (21) and the other end of which is movably sleeved to the cutting member (51).

7. The strip bag cutting device according to any one of claims 1 to 6, characterized in that: The first mounting frame (1) is fixedly arranged, and the second mounting frame (2) is movably arranged on the first mounting frame (1) and is connected to a driving mechanism.

8. The strip bag cutting device according to claim 7, characterized in that: The driving mechanism comprises a transmission assembly (3) and a driving assembly (4); the transmission assembly (3) comprises a crank (31) and a connecting rod (32); the crank (31) is rotatably arranged on a first mounting frame (1) and connected to the driving assembly (4); one end of the connecting rod (32) is hinged to the crank (31) and the other end is hinged to the second mounting frame (2).

9. The strip bag cutting device according to claim 8, characterized in that: At least two ends of the second mounting frame (2) are provided with sliding rods (33), the sliding rods (33) are slidably mounted on the first mounting frame (1), and each of the sliding rods (33) is connected to a driving assembly (4) via a transmission assembly (3).

10. The strip bag cutting device according to claim 9, characterized in that: The driving assembly (4) comprises a driving member (45) and a rotating shaft (41); the rotating shaft (41) is rotatably arranged on the first mounting frame (1) and connected to the driving member (45); and each of the cranks (31) is arranged on the rotating shaft (41).

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