Semi-automatic slitting bag making machine

Abstract

The utility model relates to the technical field of film bag manufacturing, in particular to a semi-automatic slitting bag making machine. The hot sealing machine comprises a front conveying device, a first slitting device, a first hot sealing assembly, a second hot sealing assembly and a winding device. The front conveying device is used for conveying a bag film; the first slitting device is provided with a first slitting knife which is variable in position in the first direction and located on one side of the front conveying device, the first slitting knife is used for slitting the bag film into a first part and a second part in the second direction, the first direction is in the width direction of the bag film, and the second direction is orthogonal to the first direction; the first heat-sealing assembly is used for heat-sealing the second part in the first direction; the two second heat sealing assemblies are arranged in a spaced mode and used for conducting heat sealing on the second part in the second direction; the winding device is used for winding the first part. According to the invention, film bags with different widths can be conveniently prepared.

Description

Technical Field

[0001] The present application relates to the technical field of film bag manufacturing, and in particular to a semi-automatic slitting and bag making machine. Background Art

[0002] Film bag making machines are often used in plastic packaging or other packaging fields, and plastic packaging bags are often the main products. Heat-sealed bag making technology is widely used in daily life and industrial production. Due to different use places and use methods, different specifications are required, that is, the width specifications of film bags are different.

[0003] At present, in the face of this problem in production, the usual practice is to control the forming width of the film, and at the same time adjust the parameters of each device on the production line and replace each component. Since the film width changes, the equipment needs to be debugged after the adjustment work is completed to prevent unnecessary winding of the film in the equipment. Since the production line is generally long, more components need to be replaced, and the number of debugging times is usually large, it takes a long time and the overall production efficiency is reduced. Utility Model Content

[0004] The present application provides a semi-automatic slitting and bag-making machine, which heat-seals the bottom of the formed film, then slits the width at different places to obtain the expected bag film width, and finally heat-seals the sides of the slit bag film to obtain film bags of expected specifications, thereby eliminating the need to control the film forming width, reducing component replacement and adjustment work, and reducing debugging work.

[0005] This application is implemented through the following technical solutions:

[0006] A semi-automatic slitting and bag-making machine, comprising:

[0007] A front conveying device, the front conveying device is used to convey the bag film;

[0008] A first slitting device, the first slitting device having a first slitting knife whose position can be changed in a first direction and located at one side of the front conveying device, the first slitting knife being used to slit the bag film into a first part and a second part along a second direction, wherein the first direction is along the width direction of the bag film, and the second direction is orthogonal to the first direction;

[0009] a first heat-sealing component, the first heat-sealing component being used to heat-seal the second portion in a first direction;

[0010] A second heat sealing assembly, two of which are arranged at intervals, and the second heat sealing assembly is used to heat seal the second portion in a second direction;

[0011] A winding device is used to wind up the first part.

[0012] The semi-automatic slitting bag making machine provided by the present application can cut the bag film to obtain bag films of different widths than the formed film through the setting of the first slitting device, and then the second part is heat-sealed by the first heat-sealing component and the second heat-sealing component to obtain a finished film bag, and the first part is rolled up by the winding device for standby use. Compared with the current solution, it is free from controlling the forming width of the film. When film bags of different widths need to be prepared, the position of the first slitting knife in the first slitting device can be adjusted, and the adjustment work is less, and the debugging work is relatively reduced, and the production efficiency can be improved.

[0013] In some optional embodiments, the first cutting device includes:

[0014] A support assembly, the support assembly being connected to a fixing device;

[0015] A connecting component is detachably connected to the supporting component, and the first slitting knife is arranged on the connecting component.

[0016] In some optional embodiments, the connection assembly includes a plurality of connection blocks, each of which has a matching hole, and the first slitting knife is disposed on one of the connection blocks;

[0017] Wherein, the support component has a shaft portion adapted to the matching hole so that the connecting block can be sleeved on the support component.

[0018] In some optional embodiments, the connection block is provided with corresponding position limiting protrusions and limiting grooves at two axial ends of the matching hole.

[0019] In some optional embodiments, the support assembly includes:

[0020] A support frame, the support frame is used to connect the fixing facilities;

[0021] A slitting roller, wherein the connecting block is sleeved on the slitting roller to rotate with the slitting roller;

[0022] Wherein, the first slitting knife is configured as a ring knife.

[0023] In some optional embodiments, a second slitting device is further included, wherein the second slitting device is located between the first heat sealing component and the second heat sealing component, and the second slitting device is used to cut the bag film along a first direction.

[0024] In some optional embodiments, the second slitting device includes:

[0025] A film pressing assembly, the film pressing assembly is used to press the bag film to clamp the bag film;

[0026] A second slitting knife, wherein the second slitting knife is movably arranged on the film pressing assembly;

[0027] An intermediate feeding roller, the intermediate feeding roller is located between the film pressing assembly and the first slitting device and is arranged adjacent to the film pressing assembly;

[0028] When the film pressing assembly clamps the bag film, the second slitting knife can move on the film pressing assembly to cut the bag film along the first direction.

[0029] In some optional embodiments, the film pressing assembly is provided with a first linear module and a second linear module, the first linear module is connected to the film pressing assembly, the second linear module is connected to the first linear module to move along a first direction driven by the first linear module, and the second slitting knife is connected to the second linear module to move along the normal direction of the bag film driven by the second linear module.

[0030] In some optional embodiments, an adjustment seat is further included, and the adjustment seat is used to connect to a fixing facility, wherein one of the second heat sealing components is movably connected to the adjustment seat, and the second heat sealing component can move along a first direction on the adjustment seat.

[0031] In some optional embodiments, the front conveying device includes:

[0032] The first feeding roller;

[0033] a second feeding roller, the second feeding roller being arranged at an interval with the first feeding roller;

[0034] A guide roller, wherein the guide roller is located between the first slitting device and the first feeding roller;

[0035] A tensioning roller, the tensioning roller is located between the second feeding roller and the first slitting device;

[0036] The first layer of bag film is fed from the first feeding roller via the guide roller to the first slitting device, and the second layer of bag film is fed from the second feeding roller via the tensioning roller to the first slitting device.

[0037] Compared with the prior art, this application has the following advantages and beneficial effects:

[0038] The semi-automatic slitting and bag-making machine provided by the present application has a first slitting device, in which the first slitting knife can cut the bag film to obtain bag films of different widths than the formed film, and then the second part is heat-sealed by the first heat-sealing component and the second heat-sealing component to obtain a finished film bag, and the first part is rolled up by the winding device for standby use. Compared with the current solution, it is free from the need to control the forming width of the film. When film bags of different widths need to be prepared, the position of the first slitting knife in the first slitting device can be adjusted, and the adjustment work is less, and the debugging work is relatively reduced, and the production efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings described herein are used to provide a further understanding of the embodiments of the present application, constitute a part of the present application, and do not constitute a limitation on the embodiments of the present application. In the drawings:

[0040] Figure 1 A schematic diagram of the front view structure of a semi-automatic slitting and bag making machine provided in an embodiment of the present application;

[0041] Figure 2 A schematic diagram of the top view of the semi-automatic slitting and bag making machine provided in an embodiment of the present application;

[0042] Figure 3 A schematic diagram of the structure of a first slitting device provided in an embodiment of the present application;

[0043] Figure 4 A schematic diagram of the connection component structure provided in an embodiment of the present application.

[0044] Marks and corresponding parts names in the attached drawings:

[0045] 1-first slitting device, 2-first part, 3-second part, 4-first heat sealing assembly, 5-second heat sealing assembly, 6-winding device, 7-support assembly, 8-connecting assembly, 9-first slitting knife, 10-connecting block, 11-limiting protrusion, 12-second slitting device, 13-second slitting knife, 14-middle feeding roller, 15-first feeding roller, 16-second feeding roller, 17-guide roller, 18-tensioning roller. DETAILED DESCRIPTION

[0046] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with examples and drawings. The illustrative implementation scheme of the present application and its description are only used to explain the present application and are not intended to limit the present application.

[0047] When the current bag making machine needs to prepare film bags of different widths, it is necessary to replace the mold in the equipment and adjust the parameters of the equipment to obtain different film forming widths. Due to the change in the film forming width, the rollers and conveying structures in the front conveying device need to be synchronously adjusted and replaced. The conveying line in the front conveying device is relatively long. After adjustment and replacement, multiple debugging is required to avoid unnecessary winding of the film in the front conveying device. Therefore, the workload is large and time-consuming, which reduces the production efficiency to a certain extent. Based on this, the embodiment of the present application provides an automatic slitting bag making machine.

[0048] like Figure 1-Figure 4 As shown, a semi-automatic slitting bag making machine provided in an embodiment of the present application includes a front conveying device, a first slitting device 1, a first heat sealing component 4, a second heat sealing component 5 and a winding device 6; the front conveying device is used to convey the bag film, that is, the formed film is conveyed by the front conveying device to facilitate subsequent processing of the film; the two layers of film are conveyed to the first slitting device 1 by the front conveying device, and the two sides of the film are overlapped to form a bag film, and the first slitting device 1 has a first slitting knife 9 whose position can be changed in a first direction and is located on one side of the front conveying device, and the first slitting knife 9 is used to slit the bag film into a first part 2 and a second part 3 along a second direction, wherein the first direction is along the width direction of the bag film, and the second direction is orthogonal to the first direction, that is, the bag film is slid by the first slitting device during the conveying process. The first slitting device 1 is provided for cutting to form a first part 2 and a second part 3. The width of the first part 2 and the second part 3 can be controlled by adjusting the position of the first slitting knife 9 in the first slitting device 1; the first heat sealing component 4 is used for heat-sealing the second part 3 in the first direction, that is, the heat sealing of the first heat sealing component 4 makes the second part 3 form the bottom of the bag; the two second heat sealing components 5 are arranged at intervals, and the second heat sealing components 5 are used for heat-sealing the second part 3 in the second direction, that is, the second heat sealing components 5 can heat-seal both ends of the second part 3 in the width direction to form a film bag. The heat-sealed second part 3 can be processed manually or by subsequent devices to obtain a finished film bag. The first heat sealing component 4 and the second heat sealing component 5 can both adopt heat sealing rollers in the prior art; the winding device 6 is used for winding the first part 2.

[0049] The semi-automatic slitting bag making machine provided by the present application can cut the bag film to obtain bag films of different widths than the formed film through the setting of the first slitting device 1, and then the second part 3 is heat-sealed by the first heat-sealing component 4 and the second heat-sealing component 5 to obtain a finished film bag, and the first part 2 is rolled up by the winding device 6 for standby use. Compared with the current solution, it is free from controlling the formed width of the film. When film bags of different widths need to be prepared, the position of the first slitting knife 9 in the first slitting device 1 can be adjusted, and the adjustment work is less, and the debugging work is relatively reduced, and the production efficiency can be improved.

[0050] In some optional embodiments, the first slitting device 1 may include a support assembly 7 and a connecting assembly 8; the support assembly 7 is connected with a fixing device, and in actual implementation, the support assembly 7 can be connected to the ground; the connecting assembly 8 is detachably connected to the support assembly 7, and the first slitting knife 9 is arranged on the connecting assembly 8, that is, the connecting assembly 8 can be connected to different positions on the support assembly 7 to adjust the position of the first slitting knife 9 in the first slitting device 1, thereby adjusting the width of the second part 3. For example, multiple connecting parts can be set on the support assembly 7, and the connecting assembly 8 can correspond to the multiple connecting parts by bolt connection, sliding, etc., and the connecting assembly 8 and the support assembly 7 are relatively fixed by connection or fastening.

[0051] In some optional embodiments, the connecting component 8 may include a plurality of connecting blocks 10, each of the connecting blocks 10 having a matching hole, and the first slitting knife 9 is disposed on one of the connecting blocks 10; wherein the supporting component 7 has an axial portion adapted to the matching hole so that the connecting block 10 can be sleeved on the supporting component 7.

[0052] In actual implementation, the number of connecting blocks 10 is configured to be multiple, and the lengths of each connecting block 10 in the axial direction of the matching hole are different. Specifically, one length can be set to the first group of connecting blocks 10, another length can be set to the second group of connecting blocks 10, and another length can be set to the third group of connecting blocks 10, and so on. When the position of the first slitting knife 9 needs to be adjusted, the position of the first slitting knife 9 is first determined, and then the same or different connecting blocks 10 are sequentially mounted on the shaft, and then the connecting block 10 with the first slitting knife 9 is mounted on the shaft, and finally the same or different connecting blocks 10 are sequentially mounted on the shaft to make all the connecting blocks 10 match the axial length of the shaft, and the first connecting block 10 and / or the last connecting block 10 can be fixed.

[0053] Among them, a boss can be provided on the shaft to realize the positioning of the first connection block 10, and the last connection block 10 can be positioned by a set screw or a shaft retaining ring. In other words, the total length of the plurality of connection blocks 10 is adapted to the axial length of the shaft, and the connection block 10 with the first slitting knife 9 can be located at different axial positions of the shaft by replacing connection blocks 10 of different lengths.

[0054] In some optional embodiments, the connection block 10 is provided with corresponding position limiting protrusions 11 and limiting grooves at both ends of the axial direction of the matching hole.

[0055] In the embodiment of the present application, the cooperation between the limiting protrusion 11 and the limiting groove can prevent the connecting block 10 from rotating randomly on the shaft, wherein the limiting protrusion 11 and the limiting groove only need to correspond in position and the limiting protrusion 11 can be inserted into the limiting groove. In actual implementation, the sizes of the limiting protrusion 11 and the limiting groove can be adapted to prevent the two adjacent connecting blocks 10 from rotating relative to each other.

[0056] In some optional embodiments, the support assembly 7 may include a support frame and a slitting roller; the support frame is used to connect to fixed facilities, and in actual implementation, the support frame can be connected to the ground; the connecting block 10 is sleeved on the slitting roller to rotate with the slitting roller, and the slitting roller can be equipped with a power source to rotate or brake under the drive of the power source; wherein the first slitting knife 9 is configured as an annular knife, that is, the first slitting knife 9 is coaxially arranged with the slitting roller.

[0057] In some optional embodiments, the semi-automatic slitting bag making machine may further include a second slitting device 12, which is located between the first heat sealing component 4 and the second heat sealing component 5, and is used to cut the bag film along the first direction. In other words, after the bag film is heat-sealed by the first heat sealing component 4, the bag film is cut by the second slitting device 12, and the cut bag film is heat-sealed by the second heat sealing component 5 to form a finished film bag.

[0058] In some optional embodiments, the second slitting device 12 may specifically include a film pressing assembly, a second slitting knife 13 and an intermediate feeding roller 14; the film pressing assembly is used to press the bag film to clamp the bag film; the second slitting knife 13 is movably arranged on the film pressing assembly; the intermediate feeding roller 14 is located between the film pressing assembly and the first slitting device 1 and is arranged adjacent to the film pressing assembly; wherein, when the film pressing assembly clamps the bag film, the second slitting knife 13 can move on the film pressing assembly to cut the bag film along the first direction.

[0059] In actual implementation, a first linear module and a second linear module can be set on the film pressing assembly, the first linear module is connected to the film pressing assembly, the direction of the moving end in the first linear module is along the first direction, the second linear module is connected to the first linear module to move along the first direction driven by the first linear module, and the second slitting knife 13 is connected to the second linear module to move along the normal direction of the bag film driven by the second linear module.

[0060] In some optional embodiments, the semi-automatic slitting and bag-making machine may further include an adjustment seat, which is used to connect the fixing device, wherein a second heat-sealing component 5 is movably connected to the adjustment seat, and the second heat-sealing component 5 can move along the first direction on the adjustment seat. Thus, for film bags of different widths, the bag films of different widths can be heat-sealed by adjusting the position of the second heat-sealing component 5 on the adjustment seat.

[0061] In some optional embodiments, the front conveying device may include a first feeding roller 15, a second feeding roller 16, a guide roller 17 and a tensioning roller 18; the first feeding roller 15 is wound with a first layer of bag film, and the first feeding roller 15 may be equipped with a power source for controlled rotation, so as to send out the first layer of bag film, and the sent bag film reaches the first slitting device 1 through the guide roller 17; the second feeding roller 16 is arranged at intervals with the first feeding roller 15, and the second layer of bag film is wound with the second feeding roller 16, and the second feeding roller 16 may be equipped with a power source for controlled rotation, so as to send out the second layer of bag film, and the sent bag film reaches the first slitting device 1 through the guide roller 17. Among them, the number of guide rollers 17 can be configured as two, and the number of tensioning rollers 18 can be configured as three, and both the guide rollers 17 and the tensioning rollers 18 can be equipped with a power source for controlled rotation, and the two guide rollers 17 are located above the three tensioning rollers 18.

[0062] The above specific embodiments illustrate the implementation methods of the present application. Those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Although the description of the present application will be introduced in conjunction with some embodiments, this does not mean that the features of this application are limited to the implementation methods. On the contrary, the purpose of introducing the application in conjunction with the implementation methods is to cover other options or modifications that may be extended based on the claims of the present application. In order to provide an in-depth understanding of the present application, the above description contains many specific details. The present application can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0063] It should be noted that in this specification, similar numbers and letters represent similar items in the above drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In the description of this application, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing this application 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 on this application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0064] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A semi-automatic bag-cutting machine, characterized in that: include: A front conveying device, the front conveying device is used to convey the bag film; A first slitting device (1), the first slitting device (1) having a first slitting knife (9) whose position is variable in a first direction and located on one side of the front conveying device, the first slitting knife (9) being used to slit the bag film into a first part (2) and a second part (3) along a second direction, wherein the first direction is along the width direction of the bag film, and the second direction is orthogonal to the first direction; A first heat sealing component (4), the first heat sealing component (4) is used to heat seal the second part (3) in a first direction; A second heat sealing component (5), two of the second heat sealing components (5) are arranged at intervals, and the second heat sealing components (5) are used to heat seal the second part (3) in a second direction; A winding device (6), wherein the winding device (6) is used for winding the first part (2).

2. The semi-automatic slitting and bag making machine according to claim 1 is characterized in that: The first slitting device (1) comprises: A support assembly (7), wherein the support assembly (7) is connected to a fixing device; A connecting component (8), wherein the connecting component (8) is detachably connected to the supporting component (7), and the first slitting knife (9) is arranged on the connecting component (8).

3. The semi-automatic slitting and bag making machine according to claim 2 is characterized in that: The connection assembly (8) comprises a plurality of connection blocks (10), each of the connection blocks (10) having a matching hole, and the first slitting knife (9) is arranged on one of the connection blocks (10); Wherein, the support component (7) has a shaft portion adapted to the matching hole so that the connection block (10) can be sleeved on the support component (7).

4. The semi-automatic slitting and bag making machine according to claim 3 is characterized in that: The connection block (10) is provided with corresponding position limiting protrusions (11) and limiting grooves at two axial ends of the matching hole.

5. The semi-automatic slitting and bag making machine according to claim 3 is characterized in that: The support assembly (7) comprises: A support frame, the support frame is used to connect the fixing facilities; A slitting roller, wherein the connecting block (10) is sleeved on the slitting roller to rotate with the slitting roller; Wherein, the first slitting knife (9) is configured as an annular knife.

6. The semi-automatic slitting and bag making machine according to claim 1, characterized in that: It also comprises a second slitting device (12), wherein the second slitting device (12) is located between the first heat sealing component (4) and the second heat sealing component (5), and the second slitting device (12) is used for cutting the bag film along a first direction.

7. The semi-automatic slitting and bag making machine according to claim 6, characterized in that: The second slitting device (12) comprises: A film pressing assembly, the film pressing assembly is used to press the bag film to clamp the bag film; A second slitting knife (13), wherein the second slitting knife (13) is movably arranged on the film pressing assembly; an intermediate feeding roller (14), the intermediate feeding roller (14) being located between the film pressing assembly and the first slitting device (1) and arranged adjacent to the film pressing assembly; When the film pressing assembly clamps the bag film, the second slitting knife (13) can move on the film pressing assembly to cut the bag film along a first direction.

8. The semi-automatic slitting and bag making machine according to claim 7, characterized in that: The film pressing assembly is provided with a first linear module and a second linear module, the first linear module is connected to the film pressing assembly, the second linear module is connected to the first linear module so as to move along a first direction driven by the first linear module, and the second slitting knife (13) is connected to the second linear module so as to move along the normal direction of the bag film driven by the second linear module.

9. The semi-automatic slitting and bag making machine according to claim 1, characterized in that: It also comprises an adjustment seat, which is used to connect to a fixing device, wherein one of the second heat sealing components (5) is movably connected to the adjustment seat, and the second heat sealing component (5) can move along a first direction on the adjustment seat.

10. The semi-automatic slitting and bag making machine according to claim 1, characterized in that: The front conveying device comprises: The first feeding roller (15); a second feeding roller (16), wherein the second feeding roller (16) and the first feeding roller (15) are arranged at an interval; A guide roller (17), wherein the guide roller (17) is located between the first slitting device (1) and the first feeding roller (15); A tensioning roller (18), wherein the tensioning roller (18) is located between the second feeding roller (16) and the first slitting device (1); The first layer of bag film is fed from the first feeding roller (15) via the guide roller (17) to the first slitting device (1), and the second layer of bag film is fed from the second feeding roller (16) via the tensioning roller (18) to the first slitting device (1).

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