Punching mechanism of multi-row strip bag back sealing packaging machine

Abstract

A punching mechanism of a multi-row strip bag back sealing packaging machine comprises a front cross beam, a rear cross beam and two guide columns, the front cross beam is fixed at the front ends of the two guide columns, and the punching mechanism is characterized in that guide blocks are symmetrically fixed at two ends of the rear cross beam, the guide columns are slidably mounted in the guide blocks through linear bearings respectively, supporting plate frames are fixed at the rear ends of the guide blocks respectively, and the supporting plate frames are fixed on the front cross beam. A rotatable driving shaft is installed between the two supporting plate frames, the driving shaft is in transmission connection with a servo motor arranged on one supporting plate frame, and the two ends of the driving shaft are connected with the guide columns through crank connecting rod mechanisms respectively and used for driving the front cross beam to move in a reciprocating mode; a plurality of cutter female dies are evenly distributed and fixed to the outer side of the rear cross beam through a rear die plate, a plurality of cutter male dies are evenly distributed and connected to the inner side of the front cross beam through supporting rods, and the cutter male dies and the cutter female dies are in one-to-one correspondence and are connected in an inserted mode and used for punching strip bags along with reciprocating motion of the front cross beam. The utility model has the beneficial effects of low working noise, stable integral action, long service life and high action frequency.

Description

Technical Field

[0001] The utility model belongs to packaging machinery, in particular to a longitudinal sealing mechanism of a multi-row strip bag back-sealing packaging machine. Background Art

[0002] The multi-row strip bag back-seal packaging machine usually includes an unwinding mechanism, a feeding mechanism, a longitudinal cutting mechanism, a longitudinal sealing mechanism, a transverse sealing mechanism and a punching mechanism, and is widely used in strip bag packaging of various foods or medicines.

[0003] The existing punching mechanism is mainly composed of cylinders, guide posts, linear bearings, punching mounting plates, front beams, rear beams, fillet cutter assemblies, cutter push plates, guide plates and guide grooves. The guide posts are symmetrically fixed at both ends of the front beam and the rear beam, the cutter push plates are installed on two guide posts through linear bearings, the fillet cutter assembly is arranged on the inner side of the cutter push plate, and the cylinders are evenly distributed between the front beam and the cutter push plate. During operation, the cutter push plate is pushed by the cylinder to drive the fillet cutter assembly to perform linear reciprocating motion to achieve the punching function. This punching mechanism has a high working noise, multiple cylinders are not easy to synchronize, the gas consumption is large, the operation frequency is low, and the service life of the fillet cutter is short. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a punching mechanism for a multi-row strip bag back-sealing packaging machine with low working noise, stable overall action, long service life and high action frequency.

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

[0006] A punching mechanism of a multi-row strip bag back-seal packaging machine comprises a front crossbeam, a rear crossbeam and two guide pillars, wherein the front crossbeam is fixed to the front ends of the two guide pillars, and the special features thereof are: guide blocks are symmetrically fixed at both ends of the rear crossbeam, the guide pillars are respectively slidably installed in the guide blocks through linear bearings, support plates are respectively fixed at the rear ends of the guide blocks, a rotatable driving shaft is installed between the two support plates, the driving shaft is connected to a servo motor arranged on one support plate, and both ends of the driving shaft are connected to the guide pillars through a crank connecting rod mechanism, so as to drive the front crossbeam to reciprocate;

[0007] A plurality of cutting knife dies are evenly fixed on the outer side of the rear beam through the rear template, and a plurality of cutting knife punches are evenly connected to the inner side of the front beam through the support rod. The cutting knife punches correspond to the cutting knife dies one by one and are plugged into each other to follow the reciprocating motion of the front beam to realize punching of the strip bags.

[0008] As a further preference, a rectangular long hole is provided on the rear template corresponding to each cutter die, and the cutter punch and the cutter die are inserted into the rectangular long hole after being molded together.

[0009] As a further preference, an I-shaped punching hole is provided on the cutter die, and the cutter punch is composed of guide strips on both sides and an I-shaped cutting edge connected between the guide strips, and the guide strips are inserted into the two ends of the punching hole through clearance fit to achieve mold guiding of the cutter punch and the cutter die.

[0010] As a further preference, a clamping block is fixed to the outer end of the cutting knife punch, and an annular boss is provided at one end of the support rod and is clamped in a dovetail-shaped clamping groove of the clamping block.

[0011] As a further preference, a guide frame is fixedly supported on the rear template by a bracket, and a plurality of guide channels are evenly distributed on the guide frame. The guide channels correspond one-to-one to the cutting edge gap between each cutting knife punch and cutting knife die, so as to guide the strip bag into the cutting edge gap.

[0012] As a further preference, L-shaped support plates are fixed on the outer sides of the guide blocks, rotatable short shafts are installed on the two support plates, a rocker rod is connected between the two short shafts through a rocker arm, and a cylinder is provided on the outer sides of the two support plates. A crank is hinged at one end of the cylinder rod of the cylinder and is fixedly connected to the corresponding outer end of the short shaft through the crank, so as to drive the rocker rod to swing back and forth so as to separate and drop the punched strip bags.

[0013] As a further preference, sliding blocks are respectively provided on the supporting plate frames for being slidably mounted on the body of the packaging machine.

[0014] As a further preference, an adjustment motor, a horizontally arranged transmission shaft and a vertically arranged screw transmission mechanism at both ends of the transmission shaft are installed on the body of the packaging machine, the adjustment motor is connected to the transmission shaft, both ends of the transmission shaft are respectively connected to the screws of the screw transmission mechanism, and the nuts of the screw transmission mechanism are respectively clamped on the corresponding support plate frames.

[0015] The beneficial effects of the utility model are:

[0016] The servo motor drives the drive shaft to drive the guide column and the front beam to reciprocate through the crank-connecting rod mechanism. Since the cutter punch on the inner side of the front beam corresponds to the cutter die on the outer side of the rear beam and is plugged into each other, the cutter punch cooperates with the cutter die when it reciprocates to achieve synchronous punching of multiple groups of strip bags. The overall action is stable, the working noise is small, the action frequency is higher, and it can meet a production speed of more than 60 cuts / minute; the cutter has a long service life and the edges of the strip bag packaging material are smooth after cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the front view of the utility model.

[0018] Figure 2 yes Figure 1 Top view of the .

[0019] Figure 3 yes Figure 1 Left view of .

[0020] Figure 4 yes Figure 2 AA section view.

[0021] Figure 5 A three-dimensional diagram of the present invention.

[0022] Figure 6 It is a schematic diagram of the assembly of the cutter punch and the cutter die.

[0023] In the figure: front crossbeam 1, clamping block 2, cutter die 3, punching hole 301, guide column 4, cutter punch 5, guide strip 501, cutting edge 502, rear template 6, rear crossbeam 7, guide block 8, clamping block 9, crank connecting rod mechanism 10, support plate frame 11, drive shaft 12, connecting rod 13, synchronous belt mechanism 14, servo motor 15, slider 16, rocker arm 17, guide frame 18, guide channel 19, support rod 20, adjustment motor 21, spur gear pair 22, support 23, transmission shaft 24, bevel gear pair 25, screw transmission mechanism 26, clamping block 27, cylinder 28, short shaft 29, support plate 30, crank 31, swing arm 32. DETAILED DESCRIPTION

[0024] like Figure 1-Figure 6 As shown, the utility model relates to a punching mechanism of a multi-row strip bag back-sealing packaging machine, comprising a front crossbeam 1, a rear crossbeam 7 and two guide pillars 4, wherein the front crossbeam 1 is inserted and fixed to the front ends of the two guide pillars 4 by nuts, and two rectangular guide blocks 8 are symmetrically fixed to the two ends of the rear crossbeam 7 by screws, and the guide pillars 4 are slidably installed in the corresponding guide blocks 8 by two sets of linear bearings, and an L-shaped support plate frame 11 is fixed to the rear end of the guide block 8 by screws, and a slider 16 is fixed to the support plate frame 11 for sliding installation on the body of the packaging machine. The rear ends of the two support plate frames 11 are connected to each other by two connecting rods 13.

[0025] A rotatable drive shaft 12 is installed between the two support plate frames 11 through a bearing sleeve and a bearing, a servo motor 15 is fixedly installed under one support plate frame 11 and is connected to the drive shaft 12 through a synchronous belt mechanism 14, and both ends of the drive shaft 12 are connected to the corresponding guide pillars 4 through a crank-connecting rod mechanism 10 respectively, so as to drive the front crossbeam 1 to reciprocate; a clamping block 9 is hinged at the front end of the connecting rod of the crank-connecting rod mechanism 10, and the clamping block 9 is clamped on the corresponding guide pillar 4 by screws.

[0026] On the outside of the rear crossbeam 7, two rear templates 6 arranged side by side are evenly fixed with multiple cutter dies 3 by screws. In this embodiment, 16 cutter dies are used as an example. On the inside of the front crossbeam 1, multiple cutter convex dies 5 are evenly connected by support rods 20. The cutter convex dies 5 correspond to the cutter dies 3 one by one and are plugged into each other, and are used to follow the reciprocating motion of the front crossbeam 1 to achieve punching of the strip bag. Rectangular long holes are respectively provided on the rear template 6 corresponding to each cutter die 3, and the cutter convex dies 5 are inserted into the rectangular long holes after the cutter die 3 is molded together.

[0027] I-shaped punching holes 301 are respectively provided on the cutter die 3, and the cutter punch 5 is composed of guide strips 501 on both sides and an I-shaped cutting edge 502 connected between the guide strips 501, wherein the guide strips 501 on both sides are inserted into the two ends of the punching hole 301 through clearance fit to achieve the mold-joining guide of the cutter punch 5 and the cutter die 3. A clamping block 2 is fixed to the outer end of the cutter punch 5 by screws, one end of the support rod 20 is provided with an annular boss and clamped in the dovetail-shaped clamping groove of the clamping block 2, and the other end is connected to the front crossbeam 1 by threads.

[0028] A guide frame 18 is fixedly supported on each rear template 6 by two L-shaped brackets. The guide frame 18 is composed of two clamping plates arranged front and back and a plurality of guide plates evenly fixed between the two clamping plates. A plurality of guide channels 19 evenly distributed are formed on the guide frame 18 by the plurality of guide plates. The guide channels 19 correspond one-to-one to the cutting edge gap between each cutting knife punch 5 and the cutting knife die 3 so as to guide the strip bag into the cutting edge gap.

[0029] L-shaped support plates 30 are fixed to the outer sides of the guide blocks 8 by screws, rotatable short shafts 29 are respectively installed on the two support plates 30 by bearings, a rocker rod 17 is connected between the inner ends of the two short shafts 29 by a rocker arm 32, and a cylinder 28 is respectively provided on the outer sides of the two support plates 30. A crank 31 is hinged at one end of the cylinder rod of the cylinder 28 and is fixedly connected to the outer end of the corresponding short shaft 29 through the crank 31, so as to drive the rocker rod 17 to swing back and forth, so as to facilitate the separation and falling of the punched strip bags.

[0030] An adjustment motor 21, a horizontally arranged transmission shaft 24 and a vertically arranged screw transmission mechanism 26 at both ends of the transmission shaft 24 are respectively mounted on the body of the packaging machine (not shown in the figure) through supports 23, and the transmission shaft 24 and the screws of the screw transmission mechanism 26 are respectively mounted on the corresponding supports 23 through bearing seats and bearings, and the output end of the adjustment motor 21 is connected to the transmission shaft 24 through a spur gear pair 22, and the two ends of the transmission shaft 24 are respectively connected to the screws of the screw transmission mechanism 26 through a bevel gear pair 25, and the nuts of the screw transmission mechanism 26 are clamped on the corresponding support plate frame 11 through clamping blocks 27.

[0031] The punching mechanism is slidably mounted on the body of the multi-row strip bag back-seal packaging machine through the slider 16 on the support plate frame 11 and is located below the transverse sealing mechanism. When working, the specific process is as follows:

[0032] 1. The control adjustment motor 21 is started, and the screw transmission mechanism 26 at both ends is driven to rotate through the transmission shaft 24, and the front crossbeam 1, the rear crossbeam 7 and the support plate frame 11 of the punching mechanism are driven to move up and down as a whole through the screw nut of the screw transmission mechanism 26, so as to adjust the punching position of the punching mechanism;

[0033] 2. After the punching position is adjusted, the strip bags to be punched pass through the cutting edge gap between each cutting punch 5 and the cutting die 3 through the guide channel 19, and stop stepping when reaching the transverse sealing punching position of the strip bags, and control the servo motor 15 to start, and drive the driving shaft 12 to rotate through the synchronous belt mechanism, and the driving shaft 12 drives the two guide pillars 4 to slide back and forth in the guide block 8 through the crank connecting rod mechanism 10, thereby driving the front crossbeam 1 to reciprocate; when the front crossbeam 1 reciprocates, it drives the cutting punch 5 to slide back and forth along the cutting die 3, and multiple groups of strip bags can be punched synchronously through the cooperation of the cutting edges of the cutting punch 5 and the cutting die 3;

[0034] 3. The punched bag continues to move downward as the cutting edge of the cutting punch 5 separates from the cutting die 3. The cylinder 28 is controlled to reciprocate and retract, and the short shaft and the rocker 17 are driven to swing back and forth through the crank, thereby knocking down the punched bag.

[0035] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A punching mechanism of a multi-row strip bag back-seal packaging machine, comprising a front crossbeam, a rear crossbeam and two guide pillars, wherein the front crossbeam is fixed to the front ends of the two guide pillars, and is characterized in that: Guide blocks are symmetrically fixed at both ends of the rear cross beam, and the guide posts are slidably installed in the guide blocks through linear bearings. Support plate frames are fixed at the rear ends of the guide blocks, and a rotatable driving shaft is installed between the two support plate frames. The driving shaft is connected to a servo motor provided on one support plate frame, and both ends of the driving shaft are connected to the guide posts through a crank connecting rod mechanism, so as to drive the front cross beam to reciprocate. A plurality of cutting knife dies are evenly fixed on the outer side of the rear beam through the rear template, and a plurality of cutting knife punches are evenly connected to the inner side of the front beam through the support rod. The cutting knife punches correspond to the cutting knife dies one by one and are plugged into each other to follow the reciprocating motion of the front beam to realize punching of the strip bags.

2. The punching mechanism of the multi-row strip bag back-seal packaging machine according to claim 1 is characterized by: A rectangular long hole is respectively arranged on the rear template corresponding to each cutter concave die, and the cutter convex die is inserted into the rectangular long hole after the cutter concave die is molded together.

3. The punching mechanism of the multi-row strip bag back-seal packaging machine according to claim 2 is characterized in that: An I-shaped punching hole is provided on the cutter die, and the cutter punch is composed of guide strips on both sides and an I-shaped cutting edge connected between the guide strips. The guide strips are inserted into the two ends of the punching hole through clearance fit to achieve mold guidance of the cutter punch and the cutter die.

4. A punching mechanism for a multi-row strip bag back-seal packaging machine according to any one of claims 1 to 3, characterized in that: A clamping block is fixed on the outer end of the cutter punch, and an annular boss is arranged at one end of the support rod and is clamped in a dovetail-shaped clamping groove of the clamping block.

5. The punching mechanism of the multi-row strip bag back-seal packaging machine according to claim 4 is characterized in that: A guide frame is fixedly supported on the rear template by a bracket, and a plurality of guide channels are evenly distributed on the guide frame. The guide channels correspond to the edge gaps between each cutting knife punch and cutting knife die one by one, so as to guide the strip bag into the edge gaps.

6. A punching mechanism for a multi-row strip bag back-seal packaging machine according to claim 1 or 5, characterized in that: L-shaped support plates are fixed on the outside of the guide blocks, rotatable short shafts are installed on the two support plates, and a rocker rod is connected between the two short shafts through a rocker arm. Cylinders are provided on the outside of the two support plates, and cranks are hinged at one end of the cylinder rods of the cylinders and fixedly connected to the corresponding outer ends of the short shafts through the cranks, so as to drive the rocker rods to swing back and forth so as to separate and drop the punched strip bags.

7. The punching mechanism of the multi-row strip bag back-seal packaging machine according to claim 6 is characterized by: Slide blocks are respectively arranged on the supporting plate frames for being slidably mounted on the body of the packaging machine.

8. The punching mechanism of the multi-row strip bag back-seal packaging machine according to claim 1 or 7, characterized in that: An adjustment motor, a horizontally arranged transmission shaft and a vertically arranged screw transmission mechanism at both ends of the transmission shaft are installed on the body of the packaging machine. The adjustment motor is connected to the transmission shaft, and both ends of the transmission shaft are respectively connected to the screws of the screw transmission mechanism. The nuts of the screw transmission mechanism are respectively clamped on the corresponding support plate frames.

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