Integral transverse cutter of double-sided stretch film vacuum packaging machine

Abstract

The utility model relates to the technical field of stretch film packaging equipment, in particular to an integral transverse cutter of a double-sided stretch film vacuum packaging machine. Comprising a cutter mechanism and a cutting board mechanism. The cutting board mechanism comprises a supporting assembly, a lifting frame assembly, a cutting board assembly fixed to the top of the lifting frame assembly and a lifting driver for driving the lifting frame assembly to act. According to the integral transverse cutter, the lifting frame assembly capable of ascending and descending in order is adopted, the whole lifting frame assembly is driven by the lifting driver to ascend and descend, and therefore action consistency of all cutter plates in the cutter plate mechanism can be achieved, meanwhile, the cutter mechanism is of an integral structure, and action consistency of the cutter can be achieved. In addition, the integral structure is more convenient to disassemble and assemble equipment, time and labor are saved, the number of the cutters and the number of the cutter plates can be increased or decreased according to different products, and combination of different cutter numbers can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of stretch film packaging equipment, in particular to an integral cross-cutting knife of a double-sided stretch film vacuum packaging machine. Background Art

[0002] In the field of food packaging, in order to make the shelf life of food longer, vacuum packaging is often used. Stretch film vacuum packaging machines are generally used on the market to quickly and effectively vacuum pack food. The stretch film vacuum packaging machine is equipped with a cross-cutting knife for horizontally cutting the stretch film.

[0003] In the prior art, the stretch film cross-cutting knife installed on the double-sided stretch film vacuum packaging machine is composed of a plurality of independent cross-cutting knives (such as Figure 1 , 2 As shown in the figure, each cross-cutting knife has the same structure, including: an upper cutting knife mechanism, a lower cutting plate mechanism and a lifting cylinder A1 for controlling the overall lifting of the cross-cutting knife. The upper cutting knife mechanism includes an upper cutting knife box A3, an upper cutting knife arranged in the upper cutting knife box A3, and two upper cutting knife driving cylinders A2 symmetrically fixed on the top of the upper cutting knife box A3, and the upper cutting knife driving cylinder A2 drives the upper cutting knife to move up and down. The lower cutting plate mechanism includes a lower cutting plate A5, a support plate A7, a lower cutting plate driving cylinder A8 fixed at the bottom center of the support plate A7, and a lifting frame A6, and guide rods A4 are fixed between the two ends of the support plate A7 and the two ends of the upper cutting knife box A3, the bottom of the lower cutting plate A5 is fixed on the lifting frame A6, and the two ends of the lifting frame A6 are sleeved on the two guide rods A4, and the top of the piston rod of the lower cutting plate driving cylinder A8 is fixed on the lifting frame A6, driving the lifting frame A6 to move up and down along the guide rods A4.

[0004] The above-mentioned stretch film cross-cutting knife is composed of a plurality of cross-cutting knives, so it is not only very complicated to install and adjust, but also time-consuming and labor-intensive. Moreover, the driving cylinder of each cross-cutting knife needs to be controlled separately, and it is difficult to achieve a balanced state in which all the lifting cylinders A1 and all the lower blade driving cylinders A8 move in unison. Especially after working for a long time, it is easy to cause cylinder bias, resulting in inconsistent lifting and lowering, which affects the incision quality of the stretch film. Utility Model Content

[0005] The purpose of the utility model is to provide an integral cross-cutting knife for a double-sided stretch film vacuum packaging machine to solve the above technical problems.

[0006] In order to solve the above problems, the technical solution adopted by the utility model is:

[0007] An integral cross-cutting knife for a double-sided stretch film vacuum packaging machine comprises a cutting knife mechanism and a knife plate mechanism; the cutting knife mechanism comprises a plurality of cutting knife boxes, each of which is equipped with a cutting knife, and a cutting knife cylinder for driving the cutting knife to move up and down is fixed on the top of each cutting knife box; the characteristic is that the knife plate mechanism comprises a supporting assembly, a lifting frame assembly, a knife plate assembly fixed on the top of the lifting frame assembly and a lifting drive for driving the lifting frame assembly to move; the knife plate assembly comprises a knife plate fixing frame fixed on the top of the lifting frame assembly and a plurality of knife plates vertically fixed on the knife plate fixing frame; the knife plates correspond one to one with the cutting knives in the upper and lower parts.

[0008] Preferably, the support assembly includes a base frame and guide columns fixed at the four top corners of the base frame, a driver mounting frame is fixed to the top of the base frame, a first connecting shaft is fixed to the tail end of the driver mounting frame extending out of the base frame, and the tail of the lifting driver is hingedly assembled on the first connecting shaft.

[0009] Preferably, the lifting frame assembly includes an upper bracket, a lower bracket and two supporting cross bars, the two supporting cross bars are fixed on the top of the upper bracket, and the ends of the two supporting cross bars are respectively sleeved on four guide columns; the upper bracket is provided with two left and right brackets, and the third connecting shaft and the sixth connecting shaft are respectively connected between the front and rear ends thereof; the lower bracket is provided with two brackets, and the fifth connecting shaft and the seventh connecting shaft are respectively connected at the front and rear ends thereof; the first hinged plates are respectively hinged between the two ends of the third connecting shaft and the two ends of the fifth connecting shaft, and between the two ends of the sixth connecting shaft and the two ends of the seventh connecting shaft; the two ends of the fifth connecting shaft are also respectively hinged with triangular plates, and the fourth connecting shaft is connected between the second top angles of the left and right triangular plates, and the fourth connecting shaft passes through the middle part of the drive mounting frame; the second connecting shaft is connected between the third top angles of the left and right triangular plates, and the end of the piston rod of the lifting drive is hinged on the second connecting shaft; the two ends of the seventh connecting shaft are respectively hinged with second hinged plates, and the eighth connecting shaft is connected between the left and right second hinged plates, and the eighth connecting shaft passes through the front end of the drive mounting frame.

[0010] Preferably, two blade fixing frames are symmetrically provided, and two ends thereof are respectively vertically fixed on the two supporting cross bars.

[0011] Preferably, the cutter mechanism further comprises two left and right cutter box fixing plates, and two ends of each cutter box are respectively vertically fixed on the two cutter box fixing plates.

[0012] Beneficial effects: Compared with the prior art, the integrated transverse cutting knife described in the utility model adopts a set of neatly lifting and lowering lifting frame components, and a lifting driver drives the entire lifting frame component to lift and lower, so as to achieve the consistency of the movements of each blade in the blade mechanism. At the same time, the cutting mechanism is also an integrated structure, so as to achieve the consistency of the movement of the cutting knife. In addition, the integrated structure is more convenient for the disassembly and assembly of the equipment, saving time and labor, and the number of cutting knives and blades can be increased or decreased according to different products, so as to achieve a combination of different numbers of cutting knives. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of a stretch film cross-cutting knife in the prior art;

[0014] Figure 2 It is a schematic diagram of the side view structure of a stretch film cross-cutting knife in the prior art;

[0015] Figure 3 The three-dimensional structural schematic diagram (1) of the integrated cross-cutting knife of the utility model;

[0016] Figure 4 Schematic diagram of the three-dimensional structure of the integrated cross-cutting knife of the utility model (2);

[0017] Figure 5 It is a side structural schematic diagram of the integral cross-cutting knife of the utility model.

[0018] In the figure: A1-lifting cylinder; A2-upper cutter driving cylinder; A3-upper cutter box; A4-guide rod; A5-lower cutter plate; A6-lifting frame; A7-support plate; A8-lower cutter plate driving cylinder; 11-bottom frame; 12-guide column; 13-limiting rod; 2-driver mounting frame; 3-lifting driver; 41-cutter cylinder; 42-cutter box; 43-cutter box fixing plate; 44-cutter; 51-cutter plate fixing frame; 52-cutter plate; 6-lifting frame assembly; 61-support crossbar; 62-upper bracket; 63-lower bracket; 64-first hinged plate; 65-second hinged plate; 66-triangular plate; 71-first connecting shaft; 72-second connecting shaft; 73-third connecting shaft; 74-fourth connecting shaft; 75-fifth connecting shaft; 76-sixth connecting shaft; 77-seventh connecting shaft; 78-eighth connecting shaft. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods. Example

[0020] Reference Figure 3-5 The integrated cross-cutting knife of the double-sided stretch film vacuum packaging machine described in this embodiment includes a cutting knife mechanism and a knife plate mechanism.

[0021] The cutter mechanism includes a plurality of cutter boxes 42, each of which is equipped with a cutter 44, and a cutter cylinder 41 is fixed on the top of each cutter box 42 for driving the cutter 44 to move up and down; the cutter mechanism also includes left and right two cutter box 42 fixing plates, and the two ends of each cutter box 42 are respectively vertically fixed on the two cutter box 42 fixing plates.

[0022] The knife plate mechanism includes a supporting assembly, a lifting frame assembly, a knife plate assembly fixed on the top of the lifting frame assembly and a lifting drive 3 for driving the lifting frame assembly; the knife plate assembly includes a knife plate fixing frame 51 fixed on the top of the lifting frame assembly and a plurality of knife plates 52 vertically fixed on the knife plate fixing frame 51; the knife plates 52 correspond one by one to the cutters 44 in the upper and lower parts.

[0023] The support assembly includes a bottom frame 11 and guide columns 12 fixed at the four top corners of the bottom frame 11. A driver mounting frame 2 is fixed to the top of the bottom frame 11. The tail end of the driver mounting frame 2 extending out of the bottom frame 11 is fixed with a first connecting shaft 71. The tail of the lifting driver 3 is hingedly assembled on the first connecting shaft 71.

[0024] The lifting frame assembly includes an upper bracket 62, a lower bracket 63 and two supporting cross bars 61. The two supporting cross bars 61 are fixed on the top of the upper bracket 62, and the ends of the two supporting cross bars 61 are respectively sleeved on the four guide columns 12; the knife plate fixing frame 51 is symmetrically provided with two ends, and its two ends are respectively vertically fixed on the two supporting cross bars 61.

[0025] The upper bracket 62 is provided with two on the left and right sides, and the third connecting shaft 73 and the sixth connecting shaft 76 are connected between the front and rear ends respectively; the lower bracket 63 is provided with two, and the fifth connecting shaft 75 and the seventh connecting shaft 77 are connected between the front and rear ends respectively; the first hinged plate 64 is hinged between the two ends of the third connecting shaft 73 and the two ends of the fifth connecting shaft 75, and between the two ends of the sixth connecting shaft 76 and the two ends of the seventh connecting shaft 77; the two ends of the fifth connecting shaft 75 are also hinged with a triangular plate 66, and the fourth connecting shaft 74 is connected between the second top angles of the left and right triangular plates, and the fourth connecting shaft 74 passes through the middle part of the driver mounting frame 2; the second connecting shaft 72 is connected between the third top angles of the left and right triangular plates 66, and the piston rod end of the lifting driver 3 is hinged on the second connecting shaft 72; the second hinged plates 65 are hinged at both ends of the seventh connecting shaft, and the eighth connecting shaft 78 is connected between the left and right second hinged plates 65, and the eighth connecting shaft 78 passes through the front end of the driver mounting frame 2.

[0026] The integrated cross-cutting knife described in the utility model adopts a set of neatly lifting and lowering lifting frame components, and a lifting driver drives the entire lifting frame component to lift and lower, so that the movement consistency of each blade in the blade mechanism can be achieved. At the same time, the cutting mechanism is also an integrated structure, so that the movement consistency of the cutting knife can be achieved. In addition, the integrated structure is more convenient for the disassembly and assembly of the equipment, saving time and labor, and the number of cutting knives and blades can be increased or decreased according to different products, so as to achieve a combination of different numbers of cutting knives.

[0027] The above are only implementation methods of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, are also within the patent protection scope of the present invention.

Claims

1. An integrated cross-cutting knife for a double-sided stretch film vacuum packaging machine, comprising a cutting knife mechanism and a knife plate mechanism; the cutting knife mechanism comprises a plurality of cutting knife boxes (42), each cutting knife box (42) is equipped with a cutting knife (44), and a cutting knife cylinder (41) for driving the cutting knife (44) to move up and down is fixed on the top of each cutting knife box (42); the characteristics are: The knife plate mechanism comprises a support assembly, a lifting frame assembly, a knife plate assembly fixed on the top of the lifting frame assembly, and a lifting drive (3) for driving the lifting frame assembly to move; the knife plate assembly comprises a knife plate fixing frame (51) fixed on the top of the lifting frame assembly and a plurality of knife plates (52) vertically fixed on the knife plate fixing frame (51); the knife plates (52) correspond to the cutters (44) one by one in the upper and lower directions.

2. The integrated cross-cutting knife of the double-sided stretch film vacuum packaging machine according to claim 1, characterized in that: The support assembly comprises a bottom frame (11) and guide columns (12) fixed at four top corners of the bottom frame (11); a driver mounting frame (2) is fixed at the top of the bottom frame (11); a first connecting shaft (71) is fixed at the tail end of the driver mounting frame (2) extending out of the bottom frame (11); and the tail end of the lifting driver (3) is hingedly mounted on the first connecting shaft (71).

3. The integrated cross-cutting knife of the double-sided stretch film vacuum packaging machine according to claim 2, characterized in that: The lifting frame assembly comprises an upper bracket (62), a lower bracket (63) and two supporting cross bars (61), the two supporting cross bars (61) being fixed on the top of the upper bracket (62), and the ends of the two supporting cross bars (61) being respectively sleeved on four guide pillars (12); the upper bracket (62) is provided with two left and right brackets, and the third connecting shaft (73) and the sixth connecting shaft (76) are respectively connected between the front and rear ends of the upper bracket (62); the lower bracket (63) is provided with two brackets, and the fifth connecting shaft (75) and the seventh connecting shaft (77) are respectively connected between the two ends of the third connecting shaft (73) and the two ends of the fifth connecting shaft (75), and between the two ends of the sixth connecting shaft (76) and the two ends of the seventh connecting shaft (77). The first hinge plates (64) are respectively hinged to the fifth connecting shaft (75); the two ends of the fifth connecting shaft (75) are also respectively hinged to the triangular plates (66); the second apex angles of the left and right triangular plates are connected to the fourth connecting shaft (74); the fourth connecting shaft (74) passes through the middle of the driver mounting frame (2); the third apex angles of the left and right triangular plates (66) are connected to the second connecting shaft (72); the piston rod end of the lifting driver (3) is hinged to the second connecting shaft (72); the two ends of the seventh connecting shaft are respectively hinged to the second hinge plates (65); the left and right second hinge plates (65) are connected to the eighth connecting shaft (78); the eighth connecting shaft (78) passes through the front end of the driver mounting frame (2).

4. The integrated cross-cutting knife of the double-sided stretch film vacuum packaging machine according to claim 3, characterized in that: Two blade fixing frames (51) are symmetrically provided, and two ends of the blade fixing frames (51) are respectively vertically fixed on the two supporting cross bars (61).

5. The integrated cross-cutting knife of the double-sided stretch film vacuum packaging machine according to any one of claims 1 to 4, characterized in that: The cutter mechanism also includes two left and right cutter box (42) fixing plates, and two ends of each cutter box (42) are respectively vertically fixed to the two cutter box (42) fixing plates.

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