Packaging bag film splitting machine

Abstract

The utility model relates to the technical field of dividing and cutting machines, and discloses a packaging bag film dividing and cutting machine which comprises a machine frame, an unwinding roller, a winding assembly, a dividing and cutting assembly and a pressing assembly. The winding assembly comprises at least two winding rollers which are sequentially distributed in the second direction, and one end of each winding roller is rotationally connected with the rack; the pressing assembly comprises a transmission roller and a pressing roller which are rotatably connected with the rack, the pressing roller is located over the transmission roller and can be close to or away from the transmission roller in the second direction, and the pressing roller is located between the winding roller and the unwinding roller; the slitting assembly comprises a connecting rod and a cutter rotationally connected to the connecting rod in a sleeving mode, the connecting rod is located between the pressing roller and the unwinding roller, and the end, close to the rack, of the connecting rod is connected with the rack. The adjustable pressing roller is used for pressing the packaging bag film, so that it is guaranteed that the packaging bag film does not jump during slitting, the packaging bag film can be better slit by the cutter, and the better slitting effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of slitting machines, in particular to a packaging bag film slitting machine. Background Art

[0002] A slitter is a mechanical device that cuts wide paper, mica tape, or film into multiple narrow strips. It is commonly used in papermaking machinery, wire and cable mica tape, and printing and packaging machinery. Currently, existing slitter machines cannot slit film for packaging bags due to its soft texture. During transportation, the film does not adhere tightly to the workbench surface, resulting in incomplete slitting. Utility Model Content

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a packaging bag film slitting machine.

[0004] The present application provides a packaging bag film slitting machine, comprising:

[0005] a frame having a first direction and a second direction intersecting each other;

[0006] an unwinding roller, one end of which is rotatably connected to the frame and the other end of which extends along the first direction, and is suitable for unwinding the film to be slit;

[0007] a winding assembly comprising at least two winding rollers sequentially distributed along the second direction, one end of each winding roller being rotatably connected to the frame and the other end extending along the first direction, and being suitable for winding the slit film;

[0008] at least one set of pressing assemblies, the pressing assembly comprising a transmission roller and a pressing roller rotatably connected to the frame, the pressing roller being located directly above the transmission roller and being capable of moving closer to or away from the transmission roller along the second direction to adjust a gap between the pressing roller and the transmission roller, and the pressing roller being located between the winding roller and the unwinding roller;

[0009] The slitting assembly includes a connecting rod and a cutter rotatably sleeved on the connecting rod. The connecting rod is located between the pressing roller and the unwinding roller, and one end of the connecting rod close to the frame is rotatably connected to the frame.

[0010] In a possible embodiment, an adjusting rod is further included, a slot extending along the second direction is opened on the frame, an adjusting block is arranged in the slot, the adjusting rod passes through the top of the frame and extends into the slot and is connected to the adjusting block to adjust the sliding of the adjusting block in the slot, and the clamping roller is connected to the adjusting block at one end close to the frame.

[0011] In a possible implementation manner, slideways are provided on both sides of the adjustment block, and the slideways are adapted to the groove walls of the slot so that the adjustment block can slide in the slot.

[0012] In a possible implementation manner, an adjustment knob is provided at the top end of the adjustment rod.

[0013] In a possible embodiment, a driving assembly is further included, which includes a power piece, a driving tooth, a driven tooth and a synchronous belt. The power piece is installed on the frame, and the output shaft of the power piece passes through one end of the frame and is connected to the driving tooth. The winding roller passes through one end of the frame and is provided with a driven tooth. A synchronous belt is connected between the driving tooth and the driven tooth, and the transmission between adjacent winding rollers is connected by a transmission belt.

[0014] In a possible embodiment, the drive assembly further includes a first transmission tooth and a second transmission tooth, the first transmission tooth being sleeved on the output end of the power member and located on the inner side of the active tooth, the second transmission tooth being sleeved on one end of the transmission roller passing through the frame, and the second transmission tooth being meshed with the first transmission tooth through a third transmission tooth.

[0015] In one possible embodiment, the winding roller and the unwinding roller both include a roller body, and a plurality of elongated holes extending along the first direction are spaced apart on the roller body. A tensioning strip is retractably provided in each of the elongated holes, and the tensioning strip is used to adjust the tension of the packaging bag film wound on the roller body.

[0016] In a possible embodiment, an elastic member is further included, and grooves communicating with the elongated hole are provided at both ends thereof. The elastic member is disposed in the groove, and one end of the elastic member away from the bottom of the groove is connected to the tensioning strip.

[0017] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0018] The packaging bag film to be slit is loaded onto the unwinding roller, and the head end of the packaging bag film is pulled out and passed through the drive roller and cutter in sequence. The slit packaging bag film is then reeled onto respective reel rollers. When the packaging bag film is slit, the reel rollers are driven to rotate, so that the packaging bag film on the unwinding roller is pulled out and compressed by the pressure roller. The film is then slit into multiple pieces by the cutter, and finally reeled up by the rotating reel roller, thus completing the slitting of the packaging bag film. This packaging bag film slitting machine has a simple structure and is easy to operate. It uses an adjustable pressure roller to compress the packaging bag film, ensuring that the packaging bag film does not jump during slitting, allowing it to be more easily cut by the cutter, and achieving better slitting results. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of a packaging bag film slitting machine of the utility model;

[0020] Figure 2 yes Figure 1 A magnified schematic diagram of point A in the middle;

[0021] Figure 3 This is a schematic diagram of a packaging bag film slitting machine from another perspective of the utility model;

[0022] Figure 4 This is a structural diagram of a winding roller in a packaging bag film slitting machine of the utility model;

[0023] Figure 5 The utility model is a cross-sectional view of a winding roller in a packaging bag film slitting machine.

[0024] Figure Number:

[0025] 10. Frame; 20. Unwinding roller; 30. Winding roller; 31. Roller body; 32. Tensioning strip; 33. Elastic member; 34. Groove; 40. Pressing assembly; 41. Pressing roller; 42. Transmission roller; 50. Driving assembly; 51. Power member; 52. Driving gear; 53. Driven gear; 54. Synchronous belt; 55. First transmission gear; 56. Third transmission gear; 57. Second transmission gear. DETAILED DESCRIPTION

[0026] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings and are constructed and operated in specific directions. They are only for the convenience of describing the present technical solution and do not indicate that the devices or components referred to must have specific directions. Therefore, they should not be understood as limiting the present invention.

[0027] It should also be noted that, unless otherwise clearly specified and limited, terms such as "installed", "connected", "connected", "fixed", and "set" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrated; they can be mechanically connected or electrically connected; they can be directly connected or indirectly connected through an intermediate medium, and they can be internal connections between two elements or interactions between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intervening elements. The terms "first", "second", and "third" are only used to facilitate the description of the present technical solution and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", and "third" can explicitly or implicitly include one or more of these features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration, not limitation, to facilitate a thorough understanding of the embodiments of the present invention. However, it will be apparent to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present invention with unnecessary detail.

[0029] like Figures 1 to 5 As shown, the present application provides a packaging bag film slitting machine, which includes a frame 10, a reeling roller 20, a reeling assembly and at least one set of pressing assemblies 40.

[0030] Specifically, the frame 10 has a first direction and a second direction intersecting therebetween; an unwinding roller 20 has one end rotatably connected to the frame 10 and the other end extending in the first direction, suitable for unwinding a film to be slit; a winding assembly includes at least two winding rollers 30 arranged sequentially along the second direction, one end of the winding rollers 30 being connected to the frame 10 and the other end extending in the first direction, suitable for rewinding the slit film. A pressing assembly 40 includes a drive roller 42 and a pressure roller 41 rotatably connected to the frame 10. The pressure roller 41 is located directly above the drive roller 42 and can move toward or away from the drive roller 42 in the second direction to adjust the gap between the pressure roller 41 and the drive roller 42. The pressure roller 41 is located between the winding roller 30 and the unwinding roller 20. The slitting assembly includes a connecting rod and a cutter rotatably sleeved on the connecting rod. The connecting rod is located between the pressure roller 41 and the unwinding roller 20, and the connecting rod is connected to the frame 10 at the end closest to the frame 10.

[0031] Here, it should be noted that the "first direction" and "second direction" mentioned above are fictitious directions used to facilitate the description of positions and connection relationships. Among them, the "first direction" can be specifically Figure 1 The X direction in the “second direction” can be Figure 1 In the Y direction, the two are arranged vertically.

[0032] For example, the unwinding roller 20 is used to place the packaging film to be slit. That is, the packaging film roll to be slit is placed on the unwinding roller 20, and then the unwinding roller 20 is driven to rotate to automatically unwind the packaging film roll. Similarly, the winding roller 30 is used to wind up the slit packaging film, thereby achieving automatic winding of the slit packaging film. It should be noted that only one unwinding roller 20 is required, while the number of slitting rollers depends on the number of packaging films to be slit. For example, if a whole piece of packaging film is slit to form two pieces of packaging film, two winding rollers 30 are required; if a whole piece of packaging film is slit to form three pieces of packaging film, three winding rollers 30 are required.

[0033] In addition, the unwinding roller 20 and the winding roller 30 can share a power member 51 to realize synchronization between unwinding and winding, which is conducive to cost saving. Of course, the unwinding roller 20 and the winding roller 30 can also be driven by their own power member 51, which is not limited to this.

[0034] For example, the cutter is mounted on a connecting rod, and one end of the connecting rod is then connected to the frame 10, so that the cutter is positioned between the pressure roller 41 and the unwinding roller 20. When slitting the packaging bag film, one end of the packaging bag film is first passed through the drive roller 42, the cutter, and the winding roller 30 in sequence. As the winding roller 30 continuously rewinds the packaging bag film, the cutter is used to cut the packaging bag film into multiple pieces. In other words, when the cutter cuts the packaging bag film, there is no need to provide an additional power member 51 to drive the connecting rod to rotate and drive the cutter. The slitting is achieved solely by pulling the packaging bag film past the cutter.

[0035] The packaging bag film slitting machine based on the above technical features loads the packaging bag film to be slit onto the unwinding roller 20, pulls the head end of the packaging bag film out and passes it through the drive roller 42 and the cutter in sequence, and then rewinds the slit packaging bag film onto their respective rewinding rollers 30. When the packaging bag film is slit, the rewinding rollers 30 are driven to rotate so that the packaging bag film on the unwinding roller 20 is pulled out and pressed by the pressure roller 41. Thereafter, the packaging bag film is slit into multiple pieces under the action of the cutter, and finally rewinded by the rotating rewinding roller 30, thereby completing the slitting of the packaging bag film. The packaging bag film slitting machine has a simple structure and is easy to operate. It uses an adjustable pressure roller 41 to press the packaging bag film to ensure that the packaging bag film does not jump during slitting, can be better cut by the cutter, and has a better slitting effect.

[0036] In a possible embodiment, an adjusting rod is further included. A slot extending along the second direction is opened on the frame 10, and an adjusting block is arranged in the slot. The adjusting rod passes through the top of the frame 10 and extends into the slot and is connected to the adjusting block to adjust the sliding of the adjusting block in the slide groove. The end of the pressure roller 41 close to the frame 10 is connected to the adjusting block.

[0037] For example, when it is necessary to adjust the distance between the pressure roller 41 and the transmission roller 42, the adjustment rod is rotated so that the adjustment block is pushed to slide in the slide groove, and the pressure roller 41 is moved toward the transmission roller 42, so that the distance between the pressure roller 41 and the transmission roller 42 can be adjusted to ensure that the packaging bag film is always pressed by the pressure roller 41, thereby avoiding the packaging bag film from jumping and affecting the slitting effect.

[0038] In one possible embodiment, slideways are provided on both sides of the adjustment block, which mate with the walls of the slot to allow the adjustment block to slide within the slot. Thus, the slideways on both sides of the adjustment block mate with the walls of the slot, allowing the adjustment block to slide up and down more smoothly within the slot, facilitating better adjustment of the pressure roller 41.

[0039] In a possible embodiment, an adjustment knob is provided on the top of the adjustment rod, so as to facilitate and better adjust the adjustment rod.

[0040] In a possible embodiment, a driving assembly 50 is further included, which includes a power member 51, a driving tooth 52, a driven tooth 53 and a synchronous belt 54. The power member 51 is installed on the frame 10, and the output shaft of the power member 51 passes through one end of the frame 10 and is connected to the driving tooth 52. The winding roller 30 passes through one end of the frame 10 and is provided with a driven tooth 53. A synchronous belt 54 is connected between the driving tooth 52 and the driven tooth 53, and the transmission between adjacent winding rollers 30 is connected through a transmission belt.

[0041] It should be noted that the power member 51 may be a motor, or a power member that can drive the active gear 52 to rotate, and this is not limited.

[0042] For example, when the packaging bag film is being slit, the power piece 51 is used to drive the driving tooth 52 to rotate, and the winding roller 30 is provided with a driven tooth 53 at one end passing through the frame 10, and a synchronous belt 54 is provided between the driven tooth 53 and the driving tooth 52, so that the winding roller 30 is driven to reel in the slit packaging bag film. Since the packaging bag film is a whole piece, the winding roller 30 will pull the unwinding roller 20 to rotate while rewinding the film, so there is no need to use the power piece 51 to drive the unwinding roller 20 to unwind, which is conducive to cost saving.

[0043] In a possible embodiment, the driving assembly 50 further includes a first transmission tooth 55 and a second transmission tooth 57. The first transmission tooth 55 is sleeved on the output end of the power member 51 and is located on the inner side of the driving tooth 52. The second transmission tooth 57 is sleeved on the end of the transmission roller 42 passing through the frame 10, and the second transmission tooth 57 is meshed and connected with the first transmission tooth 55 via the third transmission tooth 56. In this way, when the power member 51 drives the unwinding roller 20 to rotate, the first transmission tooth 55 is driven to rotate. Since the first transmission tooth 55 is meshed and connected with the second transmission tooth 57 via the third transmission tooth 56, and the second transmission tooth 57 is sleeved on the end of the transmission roller 42 passing through the frame 10, the transmission roller 42 is driven to rotate, thereby transporting the packaging bag film forward. The structure is simple, and there is no need to configure an additional power member 51 to drive the transmission roller 42 to rotate, which is conducive to cost saving.

[0044] In one possible embodiment, both the winding roller 30 and the unwinding roller 20 include a roller body 31 having a plurality of elongated holes extending in a first direction spaced apart therein. A tensioning strip 32 is retractably disposed within each of the elongated holes. The tensioning strip 32 is used to adjust the tension of the packaging film wound around the roller body 31. This ensures that the packaging film wound around the roller body 31 always maintains sufficient tension, preventing the film from loosening due to excessive tension.

[0045] In a possible embodiment, an elastic member 33 is further included. Grooves 34 communicating with the elongated hole are provided at both ends thereof. The elastic member 33 is disposed in the groove 34 , and one end of the elastic member 33 away from the bottom of the groove 34 is connected to the tensioning strip 32 .

[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A packaging bag film slitting machine, characterized in that: include: a frame having a first direction and a second direction intersecting each other; an unwinding roller, one end of which is rotatably connected to the frame and the other end of which extends along the first direction, and is suitable for unwinding the film to be slit; a winding assembly comprising at least two winding rollers sequentially distributed along the second direction, one end of each winding roller being rotatably connected to the frame and the other end extending along the first direction, and being suitable for winding the slit film; at least one set of pressing assemblies, the pressing assembly comprising a transmission roller and a pressing roller rotatably connected to the frame, the pressing roller being located directly above the transmission roller and being capable of moving closer to or away from the transmission roller along the second direction to adjust a gap between the pressing roller and the transmission roller, and the pressing roller being located between the winding roller and the unwinding roller; The slitting assembly includes a connecting rod and a cutter rotatably sleeved on the connecting rod. The connecting rod is located between the pressing roller and the unwinding roller, and one end of the connecting rod close to the frame is rotatably connected to the frame.

2. The packaging bag film slitting machine according to claim 1, characterized in that: It also includes an adjusting rod, a slot extending along the second direction is opened on the frame, an adjusting block is arranged in the slot, the adjusting rod passes through the top of the frame and extends into the slot and is connected to the adjusting block to adjust the sliding of the adjusting block in the slot, and the clamping roller is connected to the adjusting block at one end close to the frame.

3. The packaging bag film slitting machine according to claim 2, characterized in that: Slideways are provided on both sides of the adjusting block, and the slideways are matched with the groove walls of the groove so that the adjusting block can slide in the groove.

4. The packaging bag film slitting machine according to claim 2, characterized in that: The top end of the adjusting rod is provided with an adjusting knob.

5. The packaging bag film slitting machine according to claim 1, characterized in that: It also includes a driving assembly, which includes a power piece, a driving tooth, a driven tooth and a synchronous belt. The power piece is installed on the frame, and the output shaft of the power piece passes through one end of the frame and is connected to the driving tooth. The winding roller passes through one end of the frame and is provided with a driven tooth. A synchronous belt is connected between the driving tooth and the driven tooth, and the transmission between adjacent winding rollers is connected by a transmission belt.

6. The packaging bag film slitting machine according to claim 5, characterized in that: The drive assembly also includes a first transmission tooth and a second transmission tooth. The first transmission tooth is sleeved on the output end of the power member and is located on the inner side of the active tooth. The second transmission tooth is sleeved on one end of the transmission roller passing through the frame, and the second transmission tooth is meshed with the first transmission tooth through a third transmission tooth.

7. The packaging bag film slitting machine according to claim 1, characterized in that: The winding roller and the unwinding roller both include a roller body, on which a plurality of elongated holes extending along the first direction are spaced apart. A tensioning strip is retractably provided in each of the elongated holes, and the tensioning strip is used to adjust the tension of the roller body.

8. The packaging bag film slitting machine according to claim 7, characterized in that: It also includes an elastic member. Both ends of the long hole are provided with grooves connected thereto. The elastic member is arranged in the groove, and one end of the elastic member away from the bottom of the groove is connected to the tensioning strip.

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