Garbage bag point breaking line forming roller assembly

Abstract

The utility model discloses a garbage bag point broken line forming roller assembly, which comprises a rotating roller, a cutting board connected with the rotating roller and a fixing assembly for fixing the cutting board on the rotating roller, the roller surface of the rotating roller is provided with a mounting groove, the cutting board is arranged in the mounting groove, and the fixing assembly is used for fixing the cutting board on the rotating roller. The outer surface of the cutting board is overlapped with the peripheral surface where the roller surface of the rotating roller is located; the cutting board is provided with a spot-breaking cutter, and the spot-breaking cutter protrudes out of the surface of the cutting board. The garbage bag spot breaking line forming roller assembly is reasonable in structure, normal spot breaking operation of the garbage bag is not affected, and replacement of the cutting board is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of garbage bag manufacturing, in particular to a point-breaking line forming roller assembly for garbage bags. Background Art

[0002] For a roll of garbage bags, in order to facilitate taking a single garbage bag one by one, the point-breaking line is essential.

[0003] The "magnetic roller assembly for a hob-type bag making machine" applied by the applicant includes a magnetic roller and a knife plate attracted to the magnetic roller, and a cutting edge for cutting the garbage bag is arranged on the surface of the knife plate; a positioning assembly for positioning the knife plate is arranged between the knife plate and the magnetic roller, the positioning assembly includes a limiting plate detachably connected to the magnetic roller, the limiting plates are arranged at both ends of the magnetic roller, the knife plate is clamped between the limiting plates, and the limiting plate and the magnetic roller are not attracted and arranged.

[0004] The applicant found during use that since the magnetic roller always has strong magnetism, it is very laborious to replace the knife plate, and the magnetic roller will adsorb waste chips in the environment, causing pits or scratches on the garbage bag; and the knife plate protrudes outside the magnetic roller, and the edge of the knife plate will cause indentations on the garbage bag, affecting the finished product quality of the garbage bag.

[0005] Therefore, it is necessary to improve the point-breaking line forming roller assembly for garbage bags in the prior art. Summary of the Utility Model

[0006] The purpose of the utility model is to overcome the defects existing in the prior art, and provide a point-breaking line forming roller assembly for garbage bags, which does not affect the normal point-breaking operation of the garbage bag, is convenient for replacing the knife plate, and can also ensure the finished product quality of the garbage bag.

[0007] To achieve the above technical effects, the technical solution of the utility model is: a point-breaking line forming roller assembly for garbage bags, including a rotating roller, a knife plate connected to the rotating roller, and a fixing assembly for fixing the knife plate on the rotating roller, an installation groove is arranged on the roller surface of the rotating roller, the knife plate is arranged in the installation groove, and the outer surface of the knife plate coincides with the circumferential surface where the roller surface of the rotating roller is located; a point-breaking knife is arranged on the knife plate, and the point-breaking knife protrudes from the surface of the knife plate.

[0008] Preferably, the installation groove is provided with a limiting side wall, and the knife plate is provided with a slider that is in limiting cooperation with the limiting side wall.

[0009] Preferably, the knife plate includes a plurality of knife plate units, and the slider is slidably matched with the limiting side wall.

[0010] Preferably, a limiting groove and a limiting protrusion which are in limiting cooperation are arranged between two adjacent knife plate units, and the depth direction of the limiting groove is arranged parallel to the axial line direction of the rotating roller.

[0011] Preferably, a notch through which the slider passes is arranged on the limiting side wall.

[0012] Preferably, the fixing assembly includes clamping blocks arranged at both ends of the knife plate, the clamping blocks are in sliding and limiting cooperation with the limiting side wall, and the two clamping blocks are used for clamping and fixing the knife plate.

[0013] Preferably, a driving assembly for driving the clamping block to switch between at least two working positions is arranged between the clamping block and the rotating roller, and one of the working positions is located between the notch and the end face of the rotating roller.

[0014] Preferably, the driving assembly includes a lead screw rotatably connected to the rotating roller, the axial line direction of the lead screw is parallel to the axial line direction of the rotating roller, and the clamping block is in threaded connection with the lead screw.

[0015] Preferably, the slider is provided with an avoidance space for avoiding the lead screw.

[0016] Preferably, the rotating roller is provided with a plurality of balance grooves for maintaining dynamic balance.

[0017] The advantages and beneficial effects of the present utility model are as follows: The garbage bag dotted line forming roller assembly of the present utility model has a reasonable structure. By arranging an installation groove on the rotating roller and arranging the knife plate in the installation groove and fixing the position through the fixing assembly, it can avoid the edge of the knife plate from causing indentations on the garbage bag, avoid the use of the magnetic roller from adsorbing environmental waste chips, and also avoid the laboriousness during the replacement of the knife plate. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of an embodiment of the garbage bag dotted line forming roller assembly of the present utility model;

[0019] Figure 2 is Figure 1 an exploded schematic diagram of;

[0020] Figure 3 is a schematic structural diagram of the rotating roller;

[0021] Figure 4 is a schematic structural diagram of the knife plate unit;

[0022] In the figure: 1, rotating roller; 2, knife plate; 3, installation groove; 4, perforating knife; 5, limiting side wall; 6, slider; 7, knife plate unit; 8, limiting groove; 9, limiting convex block; 10, notch; 11, clamping block; 12, lead screw; 13, avoidance space; 14, balance groove. Detailed implementation manner

[0023] The following combines the drawings and embodiments to further describe the detailed implementation manner of the present utility model. The following embodiments are only used to more clearly illustrate the technical solution of the present utility model, and cannot be used to limit the protection scope of the present utility model.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Embodiment

[0025] As Figures 1-4 shown, the perforating line forming roller assembly of the garbage bag in the embodiment includes a rotating roller 1, a knife plate 2 connected to the rotating roller 1, and a fixing component for fixing the knife plate 2 on the rotating roller 1. An installation groove 3 is provided on the roller surface of the rotating roller 1, the knife plate 2 is arranged in the installation groove 3, and the outer surface of the knife plate 2 coincides with the circumferential surface where the roller surface of the rotating roller 1 is located; a perforating knife 4 is provided on the knife plate 2, and the perforating knife 4 protrudes from the surface of the knife plate 2.

[0026] Through such a design, the outer surface of the knife plate 2 and the roller surface of the rotating roller 1 are located on the same arc surface, thereby avoiding indentations on the garbage bag caused by the edge of the knife plate 2; the fixing component can ensure that the knife plate 2 is fixed on the rotating roller 1, avoiding the use of a magnetic roller.

[0027] Specifically, the installation groove 3 is provided with a limiting side wall 5, and the knife plate 2 is provided with a slider 6 that is in limiting cooperation with the limiting side wall 5.

[0028] Through such a design, radial limitation of the knife plate 2 is achieved.

[0029] Specifically, the knife plate 2 includes a plurality of knife plate units 7, and the slider 6 is in sliding cooperation with the limiting side wall 5.

[0030] Through such a design, generality is achieved, and the corresponding knife plate unit 7 is selected for the score lines of garbage bags with different shapes.

[0031] Specifically, adjacent two of the knife plate units 7 are provided with a limiting groove 8 and a limiting projection 9 which are in limiting cooperation, and the depth direction of the limiting groove 8 is arranged parallel to the axial line direction of the rotating roller 1.

[0032] Specifically, the limiting side wall 5 is provided with a notch 10 for the slider 6 to pass through.

[0033] Through such a design, the disassembly and assembly of the knife plate unit 7 are facilitated.

[0034] Specifically, the fixing component includes clamping blocks 11 arranged at both ends of the knife plate 2, the clamping blocks 11 are in sliding and limiting cooperation with the limiting side wall 5, and the two clamping blocks 11 are used for clamping and fixing the knife plate 2.

[0035] Through such a design, the purpose of axially limiting the knife plate 2 is achieved.

[0036] Specifically, a driving component for driving the clamping blocks 11 to switch between at least two working positions is arranged between the clamping blocks 11 and the rotating roller 1, and at least one working position is located between the notch 10 and the end face of the rotating roller 1.

[0037] Through such a design, the normal disassembly and assembly of the knife plate unit 7 are ensured.

[0038] Specifically, the driving component includes a lead screw 12 rotatably connected to the rotating roller 1, the axial line direction of the lead screw 12 is parallel to the axial line direction of the rotating roller 1, and the clamping block 11 is threadedly connected to the lead screw 12.

[0039] Through such a design, the purpose of the two clamping blocks 11 approaching or separating simultaneously is achieved.

[0040] Specifically, the slider 6 is provided with an avoidance space 13 for avoiding the lead screw 12.

[0041] Through such a design, interference between the slider 6 and the lead screw 12 is avoided.

[0042] Specifically, the rotating roller 1 is provided with a plurality of balance grooves 14 for maintaining dynamic balance.

[0043] Through such a design, the balance of the rotating roller 1 during rotation is ensured.

[0044] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A garbage bag point breaking line forming roller assembly, characterized in that: The invention comprises a rotating roller (1), a knife plate (2) connected to the rotating roller (1), and a fixing component for fixing the knife plate (2) to the rotating roller (1); the roller surface of the rotating roller (1) is provided with a mounting groove (3); the knife plate (2) is arranged in the mounting groove (3); the outer surface of the knife plate (2) is arranged to overlap with the circumferential surface of the roller surface of the rotating roller (1); the knife plate (2) is provided with a point-breaking knife (4); the point-breaking knife (4) is arranged to protrude from the surface of the knife plate (2).

2. The garbage bag point breaking line forming roller assembly according to claim 1, characterized in that: The installation groove (3) is provided with a limiting side wall (5), and the knife plate (2) is provided with a sliding block (6) that cooperates with the limiting side wall (5) in a limiting manner.

3. The garbage bag point breaking line forming roller assembly according to claim 2, characterized in that: The knife plate (2) comprises a plurality of knife plate units (7), and the sliding block (6) is slidably matched with the limiting side wall (5).

4. The garbage bag point breaking line forming roller assembly according to claim 3, characterized in that: Two adjacent blade units (7) are provided with a limiting groove (8) and a limiting protrusion (9) that cooperate with each other in limiting position, and the groove depth direction of the limiting groove (8) is arranged parallel to the axis centerline direction of the rotating roller (1).

5. The garbage bag point breaking line forming roller assembly according to claim 4, characterized in that: The limiting side wall (5) is provided with a notch (10) for the sliding block (6) to pass through.

6. The garbage bag point breaking line forming roller assembly according to claim 5, characterized in that: The fixing assembly comprises clamping blocks (11) arranged at both ends of the knife plate (2), the clamping blocks (11) slidingly and positionally cooperating with the limiting side walls (5), and the two clamping blocks (11) are used to clamp and fix the knife plate (2).

7. The garbage bag point breaking line forming roller assembly according to claim 6, characterized in that: A driving component for driving the clamping block (11) to switch between at least two working positions is provided between the clamping block (11) and the rotating roller (1), and at least one working position is located between the notch (10) and the end surface of the rotating roller (1).

8. The garbage bag point breaking line forming roller assembly according to claim 7, characterized in that: The driving assembly comprises a lead screw (12) rotatably connected to the rotating roller (1), the axis direction of the lead screw (12) being parallel to the axis direction of the rotating roller (1), and the clamping block (11) being threadedly connected to the lead screw (12).

9. The garbage bag point breaking line forming roller assembly according to claim 8, characterized in that: The sliding block (6) is provided with an escape space (13) for escaping the lead screw (12).

10. The garbage bag point breaking line forming roller assembly according to claim 9, characterized in that: The rotating roller (1) is provided with a plurality of balancing grooves (14) for maintaining dynamic balance.

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