WO2023005627A1

WO2023005627A1 - Bag cutting device and all-in-one bagging and sealing machine

Info

Publication number: WO2023005627A1
Application number: PCT/CN2022/104049
Authority: WO
Inventors: 史海波; 裴俊清; 熊超
Original assignee: 广东嘉煜机械科技有限公司
Priority date: 2021-07-28
Filing date: 2022-07-06
Publication date: 2023-02-02
Also published as: CN113460409B; CN113460409A

Abstract

A bag cutting device (1), comprising: a frame (10) and a base (11), the frame having disposed thereon a cold cutter assembly (12) and a hot cutter assembly (13); the frame is disposed on the base, and the frame can move relative to the base; when the frame moves relative to the base, the cold cutter assembly and the hot cutter assembly can at least move up and down, and furthermore, in accordance with actual usage requirements, the cold cutter assembly or the hot cutter assembly is switched to a working position; the invention further relates to an all-in-one bagging and sealing machine; relative to the prior art which involves two different apparatuses for hot cutting and cold cutting, the present device solves the problem of commonly needing two different assembly lines to separate tasks.

Description

A device for cutting bags and a bagging and sealing machine

technical field

The present application relates to the technical field of woven bag cutting, and specifically relates to a device for cutting a bag body and a bagging and sealing machine.

Background technique

The woven bags in the prior art can be divided into two categories. The first category includes BOPP laminated bags, laminating bags and paper-plastic composite bags, etc., and the second category includes ordinary woven bags, which are woven from PP polypropylene. become. For the first category, it generally needs to be cut by cold cutting; for the second category, it is necessary to heat-fuse the mouth of the ordinary woven bag to prevent it from falling apart due to cutting, and it generally needs to be cut by hot cutting. Since hot cutting and cold cutting are two different devices, the specific structure and parameter requirements of cutting are also different, and cold cutting and hot cutting cannot be shared and switched at the same time. Usually, two different assembly lines are needed to separate operations, which causes production The process is very inconvenient and increases the production cost.

Based on this, it is an urgent technical problem to provide a device that can realize the functions of cold cutting and hot cutting and can switch according to requirements.

Contents of the invention

In order to at least partly solve the foregoing technical problems, the present application provides a device for cutting a bag. The device for cutting the bag comprises:

A frame body, the frame body is provided with a cold cutter assembly and a hot cutter assembly;

The base, the frame is arranged on the base, and the frame can be moved relative to the base to switch the cold cutter assembly or the hot cutter assembly to the working position.

In an embodiment, a lifting assembly is provided between the frame body and the base, and the lifting assembly is used to move the frame body relative to the base.

In an embodiment, the lifting assembly includes a first driving device and a guide rod, the first driving device is used to drive the guide rod to move up and down, and the guide rod is fixedly connected to the frame body or the base.

In an embodiment, the lift assembly includes a hydraulic system.

In an embodiment, the cold cutter assembly comprises:

a cold cutter extending along the length of the device for cutting the bag;

The cold cutter driving arm is respectively movably connected with the cold cutter and the second driving device, so that the second driving device drives the cold cutter.

In an embodiment, the driving arm of the cold cutter is a link mechanism, and the driving arm of the cold cutter includes a first connecting rod of the driving arm of the cold cutting knife and a connecting rod of the second driving arm of the cold cutting knife. One end of the cutter driving arm connecting rod is movably connected with the cold cutter, the other end of the first cold cutter driving arm connecting rod is movably connected with one end of the second cold cutter driving arm connecting rod, and the The other end of the second cold cutter driving arm connecting rod is connected with the second driving device.

In an embodiment, said second drive means comprises an electric motor.

In an embodiment, the cold cutter driving arm includes two symmetrically arranged on both sides of the cold cutter.

In an embodiment, a slide rail is arranged on the frame body along the up and down direction, and the cold cutter is slidably arranged on the slide rail so that the cold cutter can move up and down relative to the frame body.

In an embodiment, the slide rails include two symmetrically arranged on both sides of the cold cutter along the length direction.

In an embodiment, the cold switching includes an upper cold cutter and a lower cold cutter arranged oppositely, the upper cold cutter is movably connected with the driving arm of the cold cutter, and the lower cold cutter is fixedly arranged on the on the frame.

In an embodiment, the hot cutter assembly includes:

A hot cutter, the cold cutter extending along the length of the device for cutting the bag;

a heating assembly, the heating assembly is used to heat the hot knife;

The hot knife driving arm is respectively movably connected with the hot knife and the third driving device, so that the third driving device drives the cold knife.

In an embodiment, the hot knife driving arm is a link mechanism, and the hot knife driving arm includes a first hot knife driving arm link and a second hot knife driving arm link, and the first hot knife driving arm is connected to One end of the rod is movably connected with the hot knife, the other end of the first hot knife driving arm connecting rod is movably connected with one end of the second hot knife driving arm connecting rod, and the second hot knife driving arm connecting rod The other end is connected to the third driving device.

In an embodiment, said third drive means comprises an electric motor.

In an embodiment, the hot knife driving arm includes two symmetrically arranged on both sides of the hot knife.

In an embodiment, also includes:

The hot knife seat is located under the hot knife and cooperates with the hot knife seat to cut the bag.

In an embodiment, also includes:

Rollers, the rollers are located on at least one side of the front and back direction of the cold cutter assembly and/or the hot cutter assembly, the rollers extend along the length direction, and the rollers can rotate relative to the frame to drive the bag.

In an embodiment, the hot cutter assembly is provided with a fourth driving device, the fourth driving device is connected with the roller, and the fourth driving device is used to drive the roller to move up and down.

In an embodiment, said fourth drive means comprises an air cylinder.

In an embodiment, the cold knife assembly is located below the hot knife assembly.

In an embodiment, it also includes a hot knife base, the hot knife is connected to the hot knife base through an adjustment device, and the hot knife base is connected to the hot knife driving arm;

The adjusting device is used to adjust the relative position between the hot knife and the hot knife base.

In an embodiment, said adjustment means comprises threads and bolts.

The present application also provides an all-in-one machine for bagging and sealing. The bagging and sealing all-in-one machine includes:

A device for cutting bags as described above;

an outer bag unwinding frame, the outer bag unwinding frame is used to supply bags to the device for cutting bags;

A bagging machine, the bagging machine is used to insert the inner bag into the bag body cut by the device for cutting the bag body;

A sealing machine, the sealing machine is used for sealing the bag body and the inner bag.

The cold cutter assembly and the hot cutter assembly can be arranged side by side on the frame body along the height direction of the bag cutting device. When the frame moves relative to the base, the cold cutter assembly and the hot cutter assembly can at least move up and down, and then switch the cold cutter assembly or the hot cutter assembly to the working position according to actual usage requirements. Compared with the prior art, the hot cutting and cold cutting are two different devices, which solves the problem that usually two different assembly lines are required to separate operations. The device for cutting bags of the present application can switch between cold cutting and hot cutting on one piece of equipment, and the switching operation is simple and convenient, which greatly reduces the complexity and cost of the process flow.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application. For those skilled in the art, other drawings can also be obtained according to these drawings on the premise of not paying creative efforts.

Fig. 1 is the front view of the device for cutting bag provided by the embodiment of the present application;

Fig. 2 is the front view of the device for cutting bag provided by the embodiment of the present application;

Fig. 3 is a side view of a device for cutting a bag provided by an embodiment of the present application.

Detailed ways

The technical solutions of the present application will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the application and not to limit the scope of the application. After reading the application, those skilled in the art Modifications to various equivalent forms of the present application all fall within the scope defined by the appended claims of the present application.

In order to at least partly solve the above problems, referring to FIG. 1 to FIG. 3 , an embodiment of the present application discloses a device 1 for cutting a bag. The device 1 can include a frame body 10 and a base 11 . The frame body 10 is roughly a frame-shaped structure. The frame body 10 can be set on the base 11 . The frame body 10 is provided with a cold cutter assembly 12 and a hot cutter assembly 13 . A lifting assembly 14 may be provided between the frame body 10 and the base 11 . The lifting assembly 14 can be used to drive the frame body 10 to move relative to the base 11 to switch the cold cutter assembly 12 or the hot cutter assembly 13 at the working position.

Lift assembly 14 may include a variety of configurations. For example, the lifting assembly 14 may be a guide rod structure. The structure may include a first driving device 141 and a guide rod 142 . As shown in FIG. 1 , there may be multiple guide rods 142 , for example, there may be four guide rods 142 ; the four guide rods 142 are respectively arranged at the bottom of the frame body 10 . A plurality of guide rod sleeves 143 matching with the guide rod 142 may be correspondingly provided on the base 11 . The guide rod sleeve 143 is arranged in the guide rod sleeve 143 and can move relative to the guide rod sleeve 143 . The first driving device 141 may include a lift motor 141 , and the lift motor 141 may be disposed on the frame body 10 or the base 11 . The lifting motor is used to drive the relative movement of the guide rod 142 relative to the guide rod cover 143, and then the relative movement between the frame body 10 and the base 11 can be realized, and then the cold cutter assembly 12 or the hot cutter assembly 13 arranged on the frame body 10 Switch to working position. It should be noted that the working position refers to the position where the cutter assembly can cut the bag body, and this position may be a fixed distance from the ground where the machine is placed. For example, when the cold cutter assembly 12 is at the working position, the bag body is cut by the cold cutter 121 .

It can be understood that the positions of the guide rod 142, the guide rod sleeve 143 and the lifting motor 141 can be designed according to actual requirements, and are not limited to the arrangement methods listed in the foregoing embodiments. As for the lifting assembly 14, it can also be a hydraulic system, for example including hydraulic rods and hydraulic cylinders. This structure is a prior art known to those skilled in the art, and will not be repeated here.

The cold cutter assembly 12 and the hot cutter assembly 13 can be arranged side by side on the frame body 10 along the height direction of the bag cutting device. For example, the cold cutter assembly 12 is located below the hot cutter assembly 13 . When the frame body 10 moves relative to the base 11, the cold cutter assembly 12 and the hot cutter assembly 13 can at least move up and down, and then switch the cold cutter assembly 12 or the hot cutter assembly 13 to the working position according to actual usage requirements. Compared with the prior art, the hot cutting and cold cutting are two different devices, which solves the problem that usually two different assembly lines are required to separate operations. The device 1 for cutting bags of the present application can switch between cold cutting and hot cutting on one piece of equipment, and the switching operation is simple and convenient, which greatly reduces the complexity and cost of the process.

The cold cutter assembly 12 is used for cutting bags such as BOPP laminated bags, laminating bags and paper-plastic composite bags. The cold cutter assembly 12 may include: a cold cutter 121 and a cold cutter driving arm 122 . The cold cutter 121 extends along the length direction of the bag cutting device 1 , and the length of the cold cutter 121 can be set according to actual usage requirements.

The cold cutter driving arm 122 is movably connected with the cold cutter 121 and the second driving device 123 respectively, so that the second driving device 123 drives the cold cutter 121 to move for cutting operation. The second driving device 123 may be a motor provided on the frame body 10 .

Further, in order to make the cold cutter 121 reciprocate up and down to cut the bag body. The cold cutter driving arm 122 may be a link mechanism. The cold knife driving arm 122 includes a first cold knife driving arm link 1221 and a second cold knife driving arm link 1222 . One end of the first cold cutter driving arm link 1221 is movably connected with the cold cutter. The other end of the first cold cutter driving arm connecting rod 1221 is movably connected with one end of the second cold cutter driving arm connecting rod 1222 , wherein the movably connecting can be a pin connection. The other end of the second cold cutter driving arm link 1222 is connected with the second driving device 123 . The second driving device 123 drives the first cold cutter driving arm link 1221 and the second cold cutter driving arm link 1222 to move, thereby driving the cold cutter 121 to move.

In a preferred embodiment, in order to ensure the stability of the movement of the cold cutter 121 , the cold cutter driving arm 122 may include two symmetrically arranged on both sides of the cold cutter 121 . Similarly, the first cold knife driving arm link 1221 and the second cold knife driving arm link 1222 included in the cold knife driving arm 122 are also two symmetrically arranged. The cold cutter driving arms 122 on both sides are connected through transmission shafts, so that the second driving device 123 can simultaneously drive the cold cutter driving arms 122 on both sides to move.

In addition, in order to make the cold cutter 121 move up and down relative to the frame body 10 and the motion trajectory is a straight up and down linear motion, a slide rail 16 can be arranged on the frame body 10 along the up and down direction, and the cold cutter 121 can be slidably arranged on the slide rail 16 superior. Similarly, the slide rail 16 includes two symmetrically arranged on both sides of the cold cutter 121 along the length direction.

Further, in order to ensure the cutting effect, the cold cutter 121 includes an upper cold cutter 1211 and a lower cold cutter 1212 arranged oppositely, wherein the upper cold cutter 1211 is movably connected with the cold cutter driving arm 122, and the lower cold cutter 1212 It is fixedly arranged on the frame body 10 . The upper cold cutter 1211 and the lower cold cutter 1212 act together on the bag body, and then cut the bag body.

The hot cutter assembly 13 is mainly used for cutting common woven bags. The hot knife assembly 13 may include: a hot knife 131 , a heating assembly 132 and a hot knife driving arm 133 . The hot knife 131 extends along the length of the bag cutting device 1; the length of the hot knife 131 can be set according to actual usage requirements. The heating assembly 132 is used to heat the thermal cutter 131, for example, the heating assembly 132 may be a heating tube arranged in the thermal cutter 131 and also extending along the length direction of the device 1 for cutting bags. The heating pipe can heat the thermal cutter 131 by conducting heat or flowing in the heat medium, and the heated thermal cutter 131 can thermally fuse the opening of the common woven bag to prevent it from dispersing due to cutting.

The hot knife driving arm 133 is movably connected with the hot knife 131 and the third driving device 134 respectively, so that the third driving device 134 drives the hot knife 131 . The third driving device 134 may be a motor. Further, in order to make the hot cutter 131 reciprocate up and down to cut the bag body. The hot knife driving arm 133 can be a link mechanism. The hot knife driving arm 133 includes a first hot knife driving arm link 1331 and a second hot knife driving arm link 1332 . One end of the first hot knife driving arm link 1331 is movably connected with the hot knife. The other end of the first hot knife driving arm link 1331 is movably connected with one end of the second hot knife driving arm link 1332 . The other end of the second hot knife driving arm link 1332 is connected with the third driving device 134 . The third driving device 134 drives the first hot knife driving arm link 1331 and the second hot knife driving arm link 1332 to move, thereby driving the hot knife 131 to move.

The hot knife driving arm 133 is a link mechanism, and the hot knife driving arm 133 includes a first hot knife driving arm link 1331 and a second hot knife driving arm link 1332, and one end of the first hot knife driving arm link 1331 is connected to the hot knife The other end of the first hot knife driving arm link 1331 is movably connected to one end of the second hot knife driving arm link 1332 , and the other end of the second hot knife driving arm link 1332 is connected to the third driving device 134 .

In a preferred embodiment, in order to ensure the stability of the movement of the hot knife 131 , the hot knife driving arm 133 may include two symmetrically arranged on both sides of the hot knife 131 . Similarly, the first hot knife driving arm link 1331 and the second hot knife driving arm link 1332 included in the hot knife driving arm 133 are also two symmetrically arranged. The hot knife driving arms 133 on both sides are connected through transmission shafts, so that the second driving device 123 can simultaneously drive the hot knife driving arms 133 on both sides to move.

In addition, the frame body 10 can be provided with a slide rail 16 along the up and down direction, and the heat cutter 131 can be slidably arranged on the slide rail 16 so that the heat cutter 131 can move up and down relative to the frame body 10 and the motion trajectory is a straight up and down linear motion. Similarly, the slide rail 16 includes two symmetrically arranged on both sides of the hot cutter 131 along the length direction.

In order to improve the cutting effect of the hot knife 131 , the device 1 for cutting bags may further include a hot knife seat 135 . The hot knife seat 135 can be arranged on the frame body 10 . The hot knife seat 135 is located below the hot knife 131 and cooperates with the hot knife seat 135 to cut the bag.

The hot knife assembly 13 also includes a hot knife base 136 . The hot knife 131 is connected with the hot knife base 136 through an adjustment device 137 . The hot knife base 136 is connected to the hot knife driving arm 133 and is slidably disposed on the slide rail 16 . The adjusting device 137 is used for adjusting the relative position between the hot knife 131 and the hot knife base 136 . Adjustment device 137 may comprise a nut and bolt. For example, one end of the bolt can be fixedly connected with the hot knife 131, and the other end of the bolt is fixedly arranged on the hot knife base 136 by a nut. By adjusting the relative position of the bolt and the nut, the hot knife 131 and the hot knife base 136 can be adjusted. relative position between them.

In a preferred embodiment, the device 1 for cutting bags may further include rollers 17 . The roller 17 may be located on at least one side of the cold cutter assembly 12 and/or the hot cutter assembly 13 in the front-rear direction. The roller 17 extends along the length direction, and the roller 17 can rotate relative to the frame 10 to drive the bag. The roller 17 can be a columnar structure extending along the length direction of the bag cutting device 1, and the columnar structure includes a plurality of raised wheel-shaped structures. The roller 17 can be driven to rotate passively by the bag body. In addition, a fourth driving device 171 can also be provided. The fourth driving device 171 is connected with the roller 17. The fourth driving device 171 is used to drive the roller 17 to rotate and to move up and down. sports. For example, the fourth driving device 171 includes a cylinder, one end of the cylinder is connected with the hot cutter assembly 13, and the other end of the cylinder is connected with the roller 17, and the shrinkage of the cylinder then drives the roller 17 to move up and down to adjust the roller 17 and the hot cutter The gap between the pedestals 135.

The application also discloses an all-in-one machine for bagging and sealing. The all-in-one bagging and sealing machine includes: the aforementioned device 1 for cutting bags, an outer bag unwinding frame, a bagging machine and a sealing machine. The outer bag unwinding frame is used to supply bags to the bag cutting device 1; the bagging machine is used to put the inner bag into the bag cut by the bag cutting device 1; the sealing machine Used to seal the bag body and the inner bag.

The present application has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of illustration and description, and are not intended to limit the present application to the scope of the described embodiments. In addition, those skilled in the art can understand that the application is not limited to the above-mentioned embodiments, and more variations and modifications can be made according to the teachings of the application, and these variations and modifications all fall within the scope of protection claimed in the application. within the range. The protection scope of the present application is defined by the appended claims and their equivalent scope.

Claims

A device for cutting bags, characterized in that the device for cutting bags comprises:

A frame body, the frame body is provided with a cold cutter assembly and a hot cutter assembly;

The base, the frame is arranged on the base, and the frame can be moved relative to the base to switch the cold cutter assembly or the hot cutter assembly to the working position.
The device for cutting bags according to claim 1, wherein a lifting assembly is arranged between the frame and the base, and the lifting assembly is used to move the frame relative to the base .
The device for cutting bags according to claim 2, wherein the lifting assembly includes a first driving device and a guide rod, the first driving device is used to drive the guide rod to move up and down, and the The guide rod is fixedly connected with the frame body or the base.
The device for cutting bags according to claim 2, wherein the lifting assembly comprises a hydraulic system.
The device for cutting bags according to claim 1, wherein the cold cutter assembly comprises:

a cold cutter extending along the length of the device for cutting the bag;

The cold cutter driving arm is respectively movably connected with the cold cutter and the second driving device, so that the second driving device drives the cold cutter.
The device for cutting bags according to claim 5, wherein the driving arm of the cold cutter is a linkage mechanism, and the driving arm of the cold cutter includes a first connecting rod of the driving arm of the cold cutter and a connecting rod of the second Two cold cutter driving arm connecting rods, one end of the first cold cutting knife driving arm connecting rod is movably connected with the cold cutting knife, and the other end of the first cold cutting knife driving arm connecting rod is connected with the second cold cutting knife driving arm connecting rod. One end of the connecting rod of the cold cutter driving arm is movably connected, and the other end of the connecting rod of the second cold cutter driving arm is connected with the second driving device.
The device for cutting bags according to claim 5 or 6, wherein the second driving device comprises a motor.
The device for cutting bags according to claim 5 or 6, characterized in that, the driving arms of the cold cutter include two symmetrically arranged on both sides of the cold cutter.
The device for cutting bags according to claim 5 or 6, wherein a slide rail is arranged on the frame along the up and down direction, and the cold cutter is slidably arranged on the slide rail so that the The cold cutter can move up and down relative to the frame.
The device for cutting bags according to claim 9, wherein the slide rails include two symmetrically arranged on both sides of the cold cutting knife along the length direction.
The device for cutting bags according to claim 5 or 6, wherein the cold switching includes an upper cold cutter and a lower cold cutter oppositely arranged, and the upper cold cutter and the cold cutter The knife driving arm is movably connected, and the lower cold cutting knife is fixedly arranged on the frame body.
The device for cutting a bag according to claim 1, wherein the thermal cutter assembly comprises:

A hot cutter, the cold cutter extending along the length of the device for cutting the bag;

a heating assembly, the heating assembly is used to heat the hot knife;

The hot knife driving arm is respectively movably connected with the hot knife and the third driving device, so that the third driving device drives the cold knife.
The device for cutting bags according to claim 12, wherein the hot knife driving arm is a link mechanism, and the hot knife driving arm includes a first hot knife driving arm connecting rod and a second hot knife Drive arm link, one end of the first hot knife drive arm link is movably connected to the hot knife, and the other end of the first hot knife drive arm link is connected to the second hot knife drive arm link. One end is movably connected, and the other end of the connecting rod of the second hot knife driving arm is connected with the third driving device.
The device for cutting bags according to claim 12 or 13, wherein the third driving device comprises a motor.
The device for cutting a bag according to claim 12 or 13, characterized in that, the hot knife driving arm includes two symmetrically arranged on both sides of the hot knife.
The device for cutting a bag according to claim 12 or 13, further comprising:

The hot knife seat is located under the hot knife and cooperates with the hot knife seat to cut the bag.
The device for cutting a bag according to any one of claims 1-6, further comprising:

Rollers, the rollers are located on at least one side of the cold cutter assembly and/or the hot cutter assembly in the front-rear direction, the rollers extend along the length direction, and the rollers can rotate relative to the frame to drive the bag.
The device for cutting bags according to claim 17, wherein a fourth driving device is provided on the hot cutter assembly, the fourth driving device is connected with the roller, and the fourth driving device The device is used to drive the rollers to move up and down.
The device for cutting bags according to claim 18, wherein the fourth driving device comprises an air cylinder.
The device for cutting bags according to any one of claims 1-6, wherein the cold cutter assembly is located below the hot cutter assembly.
The device for cutting bags according to claim 12, further comprising a heat cutter base, the heat cutter is connected with the heat cutter base through an adjustment device, and the heat cutter base is connected with the heat cutter base The hot knife driving arm is connected;

The adjusting device is used to adjust the relative position between the hot knife and the hot knife base.
The device for cutting bags according to claim 21, wherein said adjustment means comprises threads and bolts.
An all-in-one bagging and sealing machine, characterized in that the all-in-one bagging and sealing machine includes:

The device for cutting a bag according to any one of claims 1-22;

an outer bag unwinding frame, the outer bag unwinding frame is used to supply bags to the device for cutting bags;

A bagging machine, the bagging machine is used to insert the inner bag into the bag body cut by the device for cutting the bag body;

A sealing machine, the sealing machine is used for sealing the bag body and the inner bag.