Quickly replaceable vertical cutter for packaging machine

Abstract

A packaging machine vertical cutter capable of being rapidly replaced comprises a cutter shaft and bearings fixed to the two ends of the cutter shaft, vertical circular cutters are fixed to the cutter shaft at intervals, the bearings at the ends are sleeved with fixing sliding blocks with the parallelogram-shaped sections respectively, the fixing sliding blocks at the ends are correspondingly inserted into fixing base inserting grooves at the ends respectively, and the circular cutters are fixed to the cutter shaft. One end of the cutter shaft penetrates through the cutter shaft penetrating-out groove of the fixing base, and a driving structure is arranged at the end of the cutter shaft. The cutter shaft and the round cutter can be conveniently and rapidly replaced, the hand does not need to make contact with the round cutter during replacement, only the hand needs to make contact with the cutter shaft, and replacement is safer, rapider and more efficient.

Description

Technical Field

[0001] The utility model relates to a cutter device, in particular to a vertical cutter for a packaging machine which can be replaced quickly. Background Art

[0002] Cutter devices are commonly used in packaging machine equipment. The cutting position of the blade of the current circular cutter device is generally fixed. When cutting packaging films with different spacings, multiple cross-cutters are required to be arranged at equal intervals. At this time, the cross-cutters need to be replaced to meet the needs of cutting and dividing different spacings. However, the current cross-cutters are difficult to replace and cannot be quickly disassembled. Utility Model Content

[0003] In order to solve the above problems, the purpose of the utility model is to provide a vertical cutting knife for a packaging machine which can be replaced quickly.

[0004] To achieve the above-mentioned purpose, the technical solution of the utility model is: a quickly replaceable vertical cutting knife for a packaging machine, comprising a knife shaft and bearings fixed at both ends of the knife shaft, vertical circular cutting knives are fixed on the knife shaft at intervals, the bearings at each end are respectively sleeved in a fixed slider with a parallelogram cross-section, the fixed sliders at each end are respectively inserted into the fixed seat slots at each end, and one end of the knife shaft passes through the knife shaft outlet groove of the fixed seat, and a driving structure is arranged at this end of the knife shaft.

[0005] Furthermore, the outer side wall of each end fixing seat is respectively provided with an elastic pin, and the inner end of the elastic pin is inserted into the corresponding insertion hole of the fixed slider in a normal state.

[0006] Furthermore, fixed cutter discs sleeved on the cutter shaft are fixed on both sides of the circular cutter, and the circular cutter is fixedly clamped by the left and right fixed cutter discs.

[0007] Furthermore, the driving structure at one end of the knife shaft is a pulley, and the pulley is connected to the motor through a belt.

[0008] Furthermore, each fixing seat is provided with mounting holes vertically penetrating the fixing seat on both the front and rear sides.

[0009] Through the above settings, when the circular cutter needs to be replaced, the elastic pin is pulled out, and the elastic pin is pulled out from the socket of the fixed slider, and the fixed slider loses its obstruction. In this way, the two ends of the knife shaft are lifted and slide upward along the fixed seat slot, and the knife shaft and the fixed sliders at both ends of the knife shaft can be slid out of the fixed seat, so that other knife shafts can be replaced.

[0010] The utility model has the advantages of convenient and rapid replacement of the knife shaft and the circular cutter; during replacement, a person does not need to touch the circular cutter with hands, but only needs to touch the knife shaft, which not only makes replacement safer, but also faster and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is now further described with reference to the accompanying drawings.

[0012] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0013] Figure 2 It is a three-dimensional structural schematic diagram of the utility model in a top view;

[0014] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model in an upward-looking state. DETAILED DESCRIPTION

[0015] like Figure 1-3 As shown, a quickly replaceable vertical cutter for a packaging machine comprises a cutter shaft 1 and bearings 2 fixed at both ends of the cutter shaft 1, vertical circular cutters 3 are fixed on the cutter shaft 1 at intervals, specifically, fixed cutter discs 8 sleeved on the cutter shaft 1 are fixed on both sides of the circular cutter 3, the circular cutter 3 is fixedly clamped by the left and right fixed cutter discs 8, the bearings 2 at each end are respectively sleeved in fixed sliders 4 with a parallelogram cross-section, the fixed sliders 4 at each end are respectively inserted into slots of fixed seats 5 at each end, and one end of the cutter shaft 1 passes through a cutter shaft outlet groove 6 of the fixed seat 5, and a driving structure is arranged at this end of the cutter shaft 1, such as the driving structure at one end of the cutter shaft 1 is a pulley (not shown, i.e., the currently common pulley structure), the pulley is connected to the motor through a belt, and each fixed seat 5 is respectively provided with mounting holes vertically penetrating the fixed seat 5 on the front and rear sides.

[0016] The outer side walls of the fixed seats 5 at each end are respectively provided with elastic pins 7, and in normal state, the inner ends of the elastic pins 7 are inserted into the corresponding insertion holes of the fixed slider 4, such as a pin structure with a spring. In addition, the utility model can also fix a horizontal guide plate between the left and right fixed seats 5 below the knife shaft 1, and the front and rear edges of the guide plate are bent downward, and the guide plate has a hollow notch at the corresponding circular cutter 3, and the notch is used to pass the edge of the circular cutter 3.

[0017] The working principle of the utility model is as follows: when the circular cutter needs to be replaced, the pulley connected to the motor drive is removed, the elastic pin 7 is pulled out, the elastic pin 7 is pulled out from the insertion hole of the fixed slider 4, the fixed slider 4 loses its obstruction, and the two ends of the knife shaft 1 are lifted up and slide upward along the slots of the fixed seat 5, so that the knife shaft 1 and the fixed sliders 4 at both ends of the knife shaft 1 can be slid out from the fixed seat 5, and other knife shafts can be replaced in this way.

[0018] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A quick-change vertical cutter for a packaging machine, comprising a cutter shaft (1) and bearings (2) fixed at both ends of the cutter shaft (1), wherein vertical circular cutters (3) are fixed at intervals on the cutter shaft (1), characterized in that: The bearings (2) at each end are respectively sleeved in fixed sliders (4) having a parallelogram cross section, and the fixed sliders (4) at each end are respectively inserted into slots of fixed seats (5) at each end.

2. A quick-change vertical cutter for a packaging machine as claimed in claim 1, characterized in that: One end of the knife shaft (1) passes through a knife shaft outlet groove (6) of the fixed seat (5), and a driving structure is arranged at the end of the knife shaft (1).

3. A quick-change vertical cutter for a packaging machine as claimed in claim 1, characterized in that: The outer side walls of the fixed seats (5) at each end are respectively provided with elastic plugs (7), and in a normal state, the inner ends of the elastic plugs (7) are inserted into corresponding plug holes of the fixed slide block (4).

4. A quick-change vertical cutter for a packaging machine as claimed in claim 1, characterized in that: Fixed cutter discs (8) sleeved on the cutter shaft (1) are respectively fixed on both sides of the circular cutter (3), and the circular cutter (3) is fixedly clamped by the left and right fixed cutter discs (8).

5. A quick-change vertical cutter for a packaging machine as claimed in claim 1, characterized in that: The driving structure at one end of the knife shaft (1) is a pulley, and the pulley is connected to the motor through a belt.

6. A quick-change vertical cutter for a packaging machine as claimed in claim 1, characterized in that: Each fixing seat (5) is provided with mounting holes on both the front and rear sides thereof, respectively, which vertically penetrate the fixing seat (5).

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