Support device for packaging bags in a cylinder and packaging bag production apparatus

Abstract

The utility model provides a kind of for supporting device and packaging bag production equipment of packaging bag into cylinder, the supporting part of this supporting device is connected on the rack of packaging bag production equipment by mounting seat, supporting part extends along the transport direction of base material on packaging bag production equipment, the upper and lower two side outer wall surfaces of supporting part in vertical direction respectively abut against two inner wall surfaces of packaging bag during the process of packaging bag into cylinder.The width direction middle part of the lower side outer wall surface of supporting part is formed with lower avoiding recess that extends along transport direction and penetrates lower side outer wall surface, the protruding structure on the surface of base material can be avoided by lower avoiding recess, so that base material and the lower side outer wall surface of supporting part better adhere, reduce the wrinkle on the cylinder structure formed by base material, ensure that base material is accurately sealed with predetermined sealing position in cylinder step, ensure the aesthetic degree of packaging bag produced by packaging bag equipment, improve the yield of packaging bag produced by packaging bag equipment.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag production technology, and in particular to a support device for forming packaging bags into tubes, which can be used in packaging bag production equipment. Background Technology

[0002] Packaging bags, as a common type of packaging container, are widely used in retail, food, and clothing industries. Their structure typically includes a pair of front panels, a pair of side panels, and a bottom. Based on the sealing method, packaging bags can be divided into bottom-sealed and side-sealed types. For bottom-sealed packaging bags, the production process involves supporting the substrate with a support plate, using auxiliary accessories to bend the substrate around the support plate to form a cylindrical structure, then cutting the cylindrical structure into small segments, and folding and sealing one end of each segment to form the bottom of the packaging bag.

[0003] However, before the substrate is bent around the support plate to form a cylindrical structure, accessories such as handles or ornaments may have been set on the surface of the substrate. This causes the parts of the substrate with accessories to protrude on the support plate and cannot be flatly attached to the support plate. This not only affects the appearance of the packaged bag after molding, but may also cause the side sealing position of the substrate to shift during the tube forming process. The substrate cannot be sealed in the expected position, reducing the structural strength of the packaged bag. Utility Model Content

[0004] The purpose of this invention is to solve the technical problem in the prior art where, before the substrate is bent around the support plate to form a cylindrical structure, accessories such as handles or ornaments may be set on the surface of the substrate, which makes it impossible for the substrate to fit smoothly against the support plate. This not only affects the aesthetics of the packaged bag after molding, but may also cause the side sealing position of the substrate to shift during the tube forming process, making it impossible for the substrate to be sealed in the expected position, thus reducing the structural strength of the packaged bag.

[0005] To address the aforementioned technical problems, this utility model discloses a support device for forming packaging bags into tubes. This support device includes a mounting base mounted on the frame of a packaging bag production equipment, and a support component is mounted on the mounting base. The support component extends along the transport direction of the substrate on the packaging bag production equipment, and its upper and lower outer walls in the vertical direction abut against opposite inner walls of the packaging bag during the tube-forming process.

[0006] Furthermore, a lower clearance recess extending through the lower outer wall of the support member is formed in the middle of the width direction of the lower outer wall.

[0007] Using the above technical solution, this support component is connected to the frame of the packaging bag production equipment via a mounting base. When the substrate is transported to the corresponding position of the support component, the lower outer wall of the support component in the vertical direction abuts against the corresponding part of the substrate, while the part of the substrate that is offset from the support component in the width direction is guided by the guide structure and bent toward the upper outer wall of the support component until the substrate completely surrounds the support component and the edges on both sides in the width direction are sealed to each other, thus completing the substrate forming process. Furthermore, since the support component provided in this embodiment has a lower clearance recess on its lower outer wall, even if the surface of the substrate has an accessory such as a handle in the upstream processing structure, and the part of the substrate with the handle is located on the lower side of the support component, it will not affect the flatness of the fit between the substrate and the lower outer wall of the support component, reducing wrinkles on the substrate forming a cylindrical structure and ensuring the aesthetics of the final packaging bag; and greatly improving the accuracy of the side sealing position of the substrate in the forming process.

[0008] The present invention also discloses a support device for forming packaging bags into tubes. Viewed along the transport direction, the lower clearance recess has limiting walls on both sides in the width direction. The bottom wall of the lower clearance recess extends parallel to the table surface of the frame and connects with the corresponding end of the limiting wall.

[0009] By adopting the above technical solution, when the part of the substrate where the handle is located is under the support component, it will be avoided by the lower relief recess. Furthermore, the limiting walls on both sides of the lower relief recess in the width direction can limit the handle, thereby preventing the handle and substrate from moving in the width direction due to the pulling action of the bent part during the bending process. This ensures that the substrate moves accurately along the transportation direction and further improves the sealing accuracy of the substrate at the side sealing position.

[0010] The present invention also discloses a support device for forming packaging bags into tubes. The upper outer wall surface of the support member is also formed with an upper clearance recess. The upper clearance recess and the lower clearance recess are symmetrically arranged with respect to the thickness center of the support member in the vertical direction.

[0011] By employing the above technical solution, the upper and lower clearance recesses, in combination, allow for the clearance of the handles located on the upper and lower sides of the support component on the substrate, thereby further improving the flatness of the substrate forming a cylindrical structure. Furthermore, the upper and lower clearance recesses are symmetrically arranged in the vertical direction relative to the thickness center of the support component, ensuring that the pair of handles ultimately formed on the packaging bag are symmetrically arranged on a pair of front faces.

[0012] The present invention also discloses a support device for forming packaging bags into tubes. The support component includes a first support plate and a second support plate stacked at intervals in the vertical direction, and a connector connecting the first support plate and the second support plate. The first support plate is stacked on top of the second support plate. The connector is disposed at the upstream end of the first support plate in the transport direction. The support component is fixedly connected to the mounting base through the connector. The outer surfaces of the first support plate and the second support plate, which are opposite to each other, respectively form an upper outer wall surface and a lower outer wall surface. The vertical interval between the first support plate and the second support plate gradually decreases from the upstream end to the downstream end in the transport direction.

[0013] Using the above technical solution, this support component supports the two front sides of the substrate forming the packaging bag through the first support plate and the second support plate respectively. Furthermore, the vertical spacing between the first support plate and the second support plate gradually decreases from the upstream end to the downstream end in the transportation direction, so that the final cylindrical structure is in a folded state, which facilitates subsequent transportation and storage.

[0014] This utility model also discloses a support device for forming packaging bags into tubes. This support component includes two support assemblies arranged side-by-side along the transport direction with an adjustable spacing in the width direction. Each support assembly includes a first support plate and a second support plate stacked below the first support plate. Furthermore, each support assembly has a connector at its upstream end in the transport direction, and the second support plate is connected to the corresponding first support plate via the connector. The upper surface of each first support plate forms an upper outer wall surface, and the lower surface of each second support plate forms a lower outer wall surface. The vertical spacing between the first and second support plates gradually decreases from the upstream end to the downstream end in the transport direction.

[0015] Each support component is mounted on its corresponding mounting base via a corresponding connector. The two mounting bases are connected to the frame via their respective pitch adjustment components to adjust the spacing between the two support components in the width direction.

[0016] Using the above technical solution, this support component includes two support assemblies. The first support plates of the two support assemblies cooperate to support the portion of the substrate that is bent and attached to the upper part of the first support plate, while the second support plates of the two support assemblies support the portion of the substrate located below the support component. Furthermore, the two support assemblies can be adjusted in width direction by an adjustable spacing component, allowing the support component to adapt to the production of cylindrical structures of different widths, thereby producing packaging bags of different widths.

[0017] The present invention also discloses a support device for forming packaging bags into tubes, wherein each adjusting component includes an adjusting drive, a transmission component, and a guide extending along the width direction of the frame.

[0018] The output end of the pitch adjustment drive is connected to one end of the transmission component, and the other end of the transmission component is connected to the corresponding mounting base. The mounting base is slidably mounted on the guide component. The pitch adjustment drive drives the transmission component and moves the mounting base along the guide component in conjunction with it.

[0019] Using the above technical solution, the power of the pitch-adjusting drive is transmitted to the mounting base through the transmission component, and the mounting base moves along the guide, thereby adjusting the position of each support component in the width direction. The guide ensures that the mounting base moves accurately in the width direction.

[0020] This utility model also discloses a support device for forming packaging bags into tubes. The adjustable drive component is a drive motor, the transmission component is a transmission screw connected to the output end of the drive motor, and the guide component is a guide rail extending along the width direction of the frame. The mounting base is provided with a threaded engagement part that is connected to the corresponding transmission screw and a sliding part that engages with the guide rail.

[0021] By adopting the above technical solution, the power output by the drive motor can be accurately transmitted to the mounting base through the transmission screw, ensuring accurate adjustment of the mounting base's position in the width direction. The mounting base can accurately cooperate with the guide rail through the sliding part, and can move stably along the guide rail, avoiding movement in other directions.

[0022] The present invention also discloses a support device for forming packaging bags into tubes, wherein the support component is located at the upstream end in the transport direction and is also provided with a guide component.

[0023] By adopting the above technical solution, the guide component set at the upstream end of the support component can guide the substrate and ensure that the substrate accurately matches the support component.

[0024] The present invention also discloses a support device for forming packaging bags into tubes, wherein the guide component is configured as a guide plate that is located upstream of the second support plate in the transport direction and extends in a smooth, curved manner.

[0025] Using the above technical solution, the substrate first comes into contact with the smoothly curved and extended guide plate before contacting the second support plate. On the one hand, this can smoothly guide the movement of the substrate; on the other hand, since the substrate is continuously transported through the upstream station, the processing steps at the upstream station (such as fixing the handle) may cause the substrate to vibrate. When the guide plate comes into contact with the substrate, it can reduce the vibration on the substrate, so that the substrate can make stable contact with the second support plate.

[0026] The present invention also discloses a support device for forming packaging bags into tubes, wherein the guide components are configured as a guide wheel at the upstream end of the first support plate and an arc-shaped plate located on the side of the guide wheel in the width direction of the frame and adapted to the outer periphery of the guide wheel.

[0027] By adopting the above technical solution, the substrate first contacts the guide wheel and the arc plate before contacting the second support plate, thereby guiding the transport of the substrate and smoothly guiding the substrate to contact the second support plate. When the guide wheel contacts the substrate, it can be driven to rotate by the movement of the substrate, thereby changing the sliding friction originally experienced by the substrate into rolling friction and reducing the resistance experienced by the substrate during transport.

[0028] The present invention also discloses a packaging bag production equipment, including any of the above-mentioned support devices for forming packaging bags into tubes.

[0029] By adopting the above technical solution, when this packaging bag production equipment processes substrates with accessories such as handles into tubes, the support component has a lower avoidance recess on its lower outer wall surface, which can avoid the protruding structure on the surface of the substrate. This allows the substrate to fit better with the lower outer wall surface of the support component, reduces wrinkles on the cylindrical structure of the substrate, and greatly improves the accuracy of the side sealing position of the substrate in the tube forming step, ensuring the aesthetics and yield of the final packaging bags.

[0030] The beneficial effects of this utility model are as follows:

[0031] This utility model discloses a support device for forming packaging bags into tubes. This support component is connected to the frame of a packaging bag production equipment via a mounting base. The support component extends along the transport direction of the substrate on the packaging bag production equipment. Furthermore, the upper and lower outer walls of the support component in the vertical direction abut against the two opposite inner walls of the packaging bag during the tube-forming process. A lower clearance recess is formed in the middle of the width direction of the lower outer wall of the support component, extending through the lower outer wall along the transport direction. Even if the surface of the substrate has an attachment such as a handle in the upstream processing structure, and the handle is located below the support component, the lower clearance recess can avoid the protruding structure on the substrate surface, allowing the substrate to better fit with the lower outer wall of the support component, reducing wrinkles in the tube-shaped structure. The portion of the substrate that is offset from the support component in the width direction is guided by a guide structure and bent towards the upper outer wall of the support component until the substrate completely surrounds the support component and the edges on both sides in the width direction are accurately sealed together, completing the tube-forming step of the substrate. Attached Figure Description

[0032] Figure 1A three-dimensional structural diagram of a support device for forming packaging bags into tubes, provided for an embodiment of this utility model;

[0033] Figure 2 A partially enlarged schematic diagram of a support device for forming packaging bags into tubes, as shown in the transport direction, according to an embodiment of this utility model.

[0034] Figure 3 A schematic diagram of the assembly structure of a support device and frame for forming a packaging bag into a tube, provided for an embodiment of this utility model;

[0035] Figure 4 A partially enlarged schematic diagram of another packaging bag tube support device provided in an embodiment of the present utility model, viewed along the transport direction;

[0036] Figure 5 A partially enlarged schematic diagram of the guide component of another packaging bag forming support device provided in an embodiment of this utility model.

[0037] Explanation of reference numerals in the attached figures:

[0038] 10. Supporting component; 101. Upper outer wall surface; 102. Lower outer wall surface; 103. Lower clearance recess; 104. Limiting wall;

[0039] 100. First support plate; 200. Second support plate;

[0040] 300. Connectors;

[0041] 400. Guide component; 410. Guide plate; 420. Guide wheel; 430. Arc plate;

[0042] 20. Mounting base; 201. First mounting platform; 202. Second mounting platform; 203. Connecting arm;

[0043] 30. Pitch adjustment assembly; 301. Pitch adjustment drive component; 302. Transmission component; 303. Guide component. Detailed Implementation

[0044] As mentioned in the background section, in the prior art, when processing packaging bags, the substrate may have accessories such as handles or ornaments on its surface before it is bent around the support plate to form a cylindrical structure. This causes the parts of the substrate with accessories to protrude on the support plate and cannot be flatly attached to the support plate. This not only affects the aesthetics of the packaged bag after molding, but may also cause the side sealing position of the substrate to shift during the tube forming process. The substrate cannot be sealed in the expected position, reducing the structural strength of the packaged bag.

[0045] Therefore, this utility model provides a support device for forming packaging bags into tubes. This support device includes a support component and a mounting base. The support component is mounted on the frame of the packaging bag production equipment via the mounting base. During the tube forming process, the upper and lower outer walls of the support component abut against the two opposite inner walls of the packaging bag. Furthermore, a lower clearance recess is formed in the middle of the width direction of the lower outer wall of the support component, extending through the lower outer wall along the transport direction. The lower clearance recess can avoid protruding structures on the surface of the substrate, allowing the substrate to better fit with the lower outer wall of the support component, reducing wrinkles on the cylindrical structure formed by the substrate, ensuring that the substrate is accurately sealed at the predetermined sealing position during the tube forming step, ensuring the aesthetics of the packaging bags produced by the packaging bag equipment, and improving the yield rate of the packaging bags produced by the packaging bag equipment.

[0046] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0047] This embodiment provides a support device for forming packaging bags into tubes. This support device is usually set on the frame of the packaging bag production equipment. Before the substrate passes through the support device, handles are pre-connected. Typically, a pair of handles are spaced apart in the width direction of the substrate. In the subsequent tube forming step, when the substrate forms a tube structure, the pair of handles fit together.

[0048] The following description, in conjunction with the specific tube-forming steps, explains the support device for forming packaging bags according to this embodiment.

[0049] like Figure 1 As shown, this support device includes a support component 10 and a mounting base 20. The support component 10 is disposed on the mounting base 20 and connected to the frame of the packaging bag production equipment through the mounting base 20. The mounting base 20 has a first mounting platform 201, a second mounting platform 202, and a connecting arm 203 connecting the first mounting platform 201 and the second mounting platform 202. The first mounting platform 201 of the mounting base 20 is connected to the frame, and the second mounting platform 202 is connected to the support component 10. In order to improve the strength of the connecting arm 203, a reinforcing rib can also be formed on the connecting arm 203. Of course, this embodiment does not limit the structure of the mounting base 20 to a single one, and those skilled in the art can design it according to actual conditions and specific needs.

[0050] In this embodiment, the support member 10 extends along the transport direction of the substrate on the packaging bag production equipment. Furthermore, the upper and lower outer walls of the support member 10 in the vertical direction abut against the two opposite inner walls of the packaging bag during the tube forming process. Specifically, when the substrate is transported to the corresponding position of the support member 10, the lower outer wall 102 of the support member 10 in the vertical direction abuts against the corresponding part of the substrate. Meanwhile, the part of the substrate that is offset from the support member 10 in the width direction is guided by the guide structure and bends towards the upper outer wall 101 of the support member 10 until the substrate completely surrounds the support member 10 and the edges on both sides in the width direction are sealed to each other, thus completing the tube forming step of the substrate.

[0051] Furthermore, in this embodiment, as Figure 2 As shown, a lower clearance recess 103 extending through the lower outer wall 102 of the support member 10 is formed in the middle of the width direction of the lower outer wall 102. Even if the surface of the substrate has been provided with an accessory such as a handle in the upstream processing structure, and the part of the substrate where the handle is provided is located on the lower side of the support member 10, it will not affect the flatness of the fit between the substrate and the lower outer wall 102 of the support member 10, reduce wrinkles on the cylindrical structure formed by the substrate, and ensure the aesthetics of the final packaging bag; and greatly improve the accuracy of the side sealing position of the substrate in the tube forming step.

[0052] In one embodiment, such as Figure 1 As shown, the support component 10 includes a first support plate 100 and a second support plate 200 stacked at intervals in the vertical direction, and a connector 300 connecting the first support plate 100 and the second support plate 200. The first support plate 100 is stacked on top of the second support plate 200, the connector 300 is disposed at the upstream end of the first support plate 100 in the transport direction, and the support component 10 is fixedly connected to the mounting base 20 through the connector 300.

[0053] The outer surfaces of the first support plate 100 and the second support plate 200, which are opposite to each other, form the upper outer wall 101 and the lower outer wall 102, respectively. In other words, the outer surfaces of the second support plate 200, which are opposite to each other, form the lower clearance recess 103. Furthermore, the vertical distance between the first support plate 100 and the second support plate 200 gradually decreases from the upstream end to the downstream end in the transport direction, so that the final cylindrical structure is in a folded state, which facilitates subsequent transportation and storage.

[0054] More specifically, the connector 300 can be configured as a wedge-shaped block. The upper end of the wedge-shaped block has a mounting surface that connects with the mounting base. The height of the wedge-shaped block gradually decreases from the upstream end in the transport direction. The upstream end of the first support plate 100 forms a mounting groove that is adapted to and connected to the lower end of the mounting base 20. The lower surface of the first support plate 100 is attached to the upper side of the wedge-shaped block and fixedly connected. The surface of the second support plate 200 is attached to the lower side of the wedge-shaped block and fixedly connected. This ensures that the vertical distance between the first support plate 100 and the second support plate 200 gradually decreases from the upstream end to the downstream end in the transport direction. The mounting surface of the wedge-shaped block and the mounting base 20, and the first support plate 100 and the second support plate 200 and the wedge-shaped block can be fixedly connected by screwing, snapping, or welding. This embodiment does not specifically limit this.

[0055] It should be noted that the width of the connector 300 is smaller than the width of the first support plate 100 and the second support plate 200, so that the substrate forms a cylindrical structure around the support member 10. The portion of the substrate located outside the first support plate 100 and the second support plate 200 in the width direction can be inserted by a plug-in member (e.g., a disc), thereby forming the side of the packaging bag folded into a "V" shape, while the portion located outside the first support plate 100 and the second support plate 200 forms a pair of front sides of the packaging bag.

[0056] Of course, the specific structure of the connector 300 is not limited to the wedge block in this embodiment. It can also be a plurality of connecting rods extending vertically at intervals along the transport direction. The number of connecting rods can be two, three, four or other numbers. Some connecting rods are located below the mounting base 20, and the upper end of the connecting rod is connected to the mounting base 20, and the lower end of the connecting rod is connected to the second support plate 200. One end of the connecting rod that is offset from the mounting base 20 in the transport direction is connected to the first support plate 100, and the other end is connected to the second support plate 200. Alternatively, the connector 300 can be set as a connecting rib extending vertically, with the upper end of the connecting rib connected to the first support plate 100 and the lower end connected to the second support plate 200. This embodiment does not limit this to a single one.

[0057] Furthermore, looking along the transport direction, the lower clearance recess 103 on the second support plate 200 has limiting walls 104 on both sides in the width direction. The bottom wall of the lower clearance recess 103 extends in a direction parallel to the table surface of the frame and connects with the corresponding end of the limiting wall 104. When the part of the substrate where the handle is located is under the support member 10, it will be avoided by the lower clearance recess 103. In addition, the limiting walls 104 on both sides of the lower clearance recess 103 in the width direction can limit the handle, thereby preventing the handle and substrate from moving in the width direction due to the pulling action of the bent part during the bending process. This ensures that the substrate moves accurately along the transport direction and further improves the sealing accuracy of the substrate at the side sealing position.

[0058] Specifically, the lower relief recess 103 can be formed directly by the second support plate 200 during the die casting process, or the second support plate 200 can be formed by three plate-like structures stacked together. When viewed vertically, the three plate-like structures overlap and connect in the width direction where they are close to each other (e.g., by welding or structural adhesive). When viewed in the width direction, the plate-like structures on both sides are located on the same horizontal plane and below the middle plate-like structure. The lower surfaces of the middle plate-like structure and the plate-like structures on both sides that are offset from each other form the bottom surface of the lower relief recess 103. The side wall surfaces of the plate-like structures on both sides that are close to the middle plate-like structure form the limiting wall 104.

[0059] In this embodiment, the cross-sectional shape of the lower clearance recess 103 is rectangular when viewed along the transport direction. Of course, the cross-sectional shape of the lower clearance recess 103 can also be arc-shaped, trapezoidal, triangular or other irregular shape when viewed along the transport direction. This embodiment does not limit this to a single shape.

[0060] It should be noted that the reason for providing the lower clearance recess 103 on the surface of the second support plate 200 away from the first support plate 100 is that when the substrate is attached to the lower surface of the second support plate 200, the lower surface of the substrate will mate with the table surface of the frame. The protruding structures on the substrate (such as handles) will obstruct the movement of the substrate. The first support plate 100 only contacts the handle at the corresponding position on the substrate after the substrate is bent and wrapped to form a cylindrical structure. The contact time between the two is short, and the side of the substrate away from the first support plate 100 is relatively free, which has little impact on the transportation of the substrate. However, because the upper handle will be squeezed on the upper surface of the first support plate 100 after the substrate is bent, a copper gasket with better wear resistance can be provided on the part of the first support plate 100 that contacts the handle in order to reduce wear on the first support plate 100.

[0061] Of course, the upper outer wall surface 101 of the support member 10 may also have an upper clearance recess, specifically formed on the side wall surface of the first support plate 100 opposite to the second support plate 200. The upper clearance recess and the lower clearance recess 103 of the upper outer wall surface 101 are symmetrically arranged relative to the thickness center of the support member 10 in the vertical direction.

[0062] In this embodiment, the upper and lower clearance recesses 103 cooperate to allow the handles connected to the upper and lower sides of the support member 10 on the substrate to be respectively avoided, further improving the flatness of the substrate forming a cylindrical structure. Furthermore, the upper and lower clearance recesses 103 are symmetrically arranged relative to the thickness center of the support member 10 in the vertical direction, ensuring that the pair of handles ultimately forming the packaging bag are symmetrically arranged on a pair of front faces.

[0063] The specific structure of the upper relief recess is similar to that of the lower relief recess 103, and will not be described in detail here.

[0064] In order to enable the substrate to fit smoothly with the support member 10, the support member 10 is also provided with a guide member 400 at the upstream end in the transport direction.

[0065] Specifically, such as Figure 1 As shown, the guide component 400 is configured as a guide plate 410 that extends smoothly and bends upstream of the second support plate 200 in the transport direction. Before the substrate comes into contact with the second support plate 200, it first comes into contact with the guide plate 410 that extends smoothly and bends. On the one hand, it can smoothly guide the movement of the substrate. On the other hand, since the substrate is continuously transported through the upstream station, the processing steps at the upstream station (such as fixing the handle) may cause the substrate to vibrate. When the guide plate 410 comes into contact with the substrate, it can reduce the vibration on the substrate, so that the substrate can come into contact with the second support plate 200 smoothly.

[0066] In this embodiment, since the substrate is transported from above to the support member 10 after the handle is fixed, the guide plate 410 extends smoothly and curvedly from above until it connects with the upstream end of the second support plate 200 extending in the horizontal direction. Of course, the specific structure of the guide plate 410 can be designed according to actual conditions and needs, and this embodiment does not limit it to a single one.

[0067] In another alternative embodiment, such as Figure 3As shown, this support component 10 includes two support assemblies arranged side by side along the transport direction and with an adjustable spacing in the width direction. Each support assembly includes a first support plate 100 and a second support plate 200 stacked below the first support plate 100. Furthermore, each support assembly is provided with a connector 300 at its upstream end in the transport direction, and the second support plate 200 is connected to the corresponding first support plate 100 through the connector 300.

[0068] And, as Figure 4 As shown, the upper surface of each first support plate 100 forms an upper outer wall surface 101, and the lower surface of each second support plate 200 forms a lower outer wall surface 102. The vertical spacing between the first support plate 100 and the second support plate 200 gradually decreases from the upstream end to the downstream end in the transport direction. The first support plates 100 of the two support components cooperate to support the portion of the substrate that is bent and attached to the upper part of the first support plate 100, while the second support plates 200 of the two support components support the portion of the substrate located below the support member 10. It should be noted that the limiting walls 104 on both sides of the lower relief recess 103 in the width direction are respectively formed on the two second support plates 200.

[0069] Furthermore, each support component is mounted on a corresponding mounting base 20 via a corresponding connector 300. The two mounting bases 20 are connected to the frame via their respective adjustment components 30 to adjust the spacing between the two support components in the width direction, so that the support component 10 can adapt to the production of cylindrical structures of different widths, thereby producing packaging bags of different bag widths.

[0070] In this embodiment, the structures of the first support plate 100, the second support plate 200, and the connector 300 are similar to those in the above embodiments, and will not be described again here.

[0071] More specifically, such as Figure 3 As shown, in this embodiment, each pitch adjustment assembly 30 includes a pitch adjustment drive 301, a transmission 302, and a guide 303 extending along the width direction of the frame.

[0072] The output end of the pitch adjustment drive 301 is connected to one end of the transmission 302, and the other end of the transmission 302 is connected to the corresponding mounting base 20. The mounting base 20 is slidably disposed on the guide 303. The pitch adjustment drive 301 drives the transmission 302 and moves the mounting base 20 along the guide 303.

[0073] Furthermore, in this embodiment, the pitch adjustment drive 301 is configured as a drive motor, the transmission component 302 is configured as a transmission screw connected to the output end of the drive motor, and the guide component 303 is configured as a guide rail extending along the width direction of the frame.

[0074] The mounting base 20 is provided with a threaded engagement part that is connected to the corresponding transmission screw. The threaded engagement part can be a threaded hole that engages with the outer thread of the transmission screw, or a nut that is fixedly mounted on the mounting base 20 and engages with the thread of the transmission screw. In addition, the mounting base 20 is also provided with a sliding part that engages with the guide rail. The sliding part can be a sliding recess that engages with the slider, or a slider that is fixed (e.g., snap-fitted or screwed) on the mounting base 20 and engages with the guide rail.

[0075] In this embodiment, the power output from the drive motor can be accurately transmitted to the mounting base 20 via the transmission lead screw, ensuring accurate adjustment of the mounting base 20's position in the width direction. The mounting base 20 can accurately cooperate with the guide rail via the sliding part, enabling it to move stably along the guide rail and preventing movement in other directions.

[0076] The specific structure of the pitch adjustment component 30 is not limited to the structure in the above embodiment. In another alternative embodiment, the pitch adjustment drive 301 is configured as a linear motor whose output end extends along the width direction, the transmission component 302 is configured as a light rod whose one end is connected to the output end of the linear motor through a coupling structure and whose other end is fixedly connected to the mounting base 20, and the guide 303 is configured as a guide rod extending along the vertical direction. The mounting base 20 cooperates with the guide rod through a round hole. The pitch adjustment component 30 can also be configured as a strip hole extending along the width direction on the frame or on the mounting base 20. After manually adjusting the position of the mounting base 20 in the width direction, the mounting base 20 is assembled onto the frame using fasteners (such as bolts). This embodiment does not limit this to a single method.

[0077] Of course, in this embodiment, such as Figure 5 As shown, a guide component 400 can also be provided at the upstream end of the support component 10. Specifically, the guide component 400 is configured as a guide wheel 420 at the upstream end of the first support plate 100 and an arc plate 430 located on the side of the guide wheel 420 in the width direction of the frame and adapted to the outer periphery of the guide wheel 420. Before the substrate contacts the second support plate 200, it first contacts the guide wheel 420 and the arc plate 430, thereby guiding the transport of the substrate and smoothly guiding the substrate to contact the second support plate 200. When the guide wheel 420 contacts the substrate, it can be driven to rotate under the movement of the substrate, thereby changing the sliding friction originally experienced by the substrate into rolling friction and reducing the resistance experienced by the substrate during transport.

[0078] It should be noted that this embodiment does not impose a unique limitation on the specific structure of the guide component 400, for example, in Figure 1 In the illustrated embodiment, the guide component 400 can also be configured as a guide wheel 420 and an arc-shaped plate 430. Figure 3In the illustrated embodiment, the guide component 400 can also be configured as a smoothly curved and extended guide plate 410. Those skilled in the art can design it according to actual conditions and specific needs, and this embodiment does not limit it to a single design.

[0079] The present invention also discloses a packaging bag production equipment, including any of the above-mentioned support devices for forming packaging bags into tubes.

[0080] When this packaging bag production equipment processes substrates with accessories such as handles into tubes, the support member 10 has a lower clearance recess 103 on its lower outer wall 102, which can avoid the protruding structure on the surface of the substrate. This allows the substrate to fit better with the lower outer wall 102 of the support member 10, reduces wrinkles on the cylindrical structure of the substrate, and greatly improves the accuracy of the side sealing position of the substrate in the tube forming step, ensuring the aesthetics and yield of the final packaging bags.

[0081] It should be noted that, in addition to the specific embodiments described above, those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model is presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to that embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. In order to provide a deep understanding of this utility model, many specific details are included in the above description, and this utility model may also be implemented without using these details. In addition, in order to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0082] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0083] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0084] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0085] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0086] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A support device for forming packaging bags into tubes, characterized in that, This includes a mounting base installed on the frame of the packaging bag production equipment, and the mounting base is provided with supporting components; wherein... The supporting member extends along the transport direction of the substrate on the packaging bag production equipment, and its upper and lower outer wall surfaces respectively abut against the two opposite inner wall surfaces of the packaging bag during the bag forming process; and... A lower clearance recess is formed in the middle of the lower outer wall surface of the support member in the width direction, extending through the lower outer wall surface along the transport direction.

2. The support device for forming packaging bags into tubes as described in claim 1, characterized in that, in, Viewed along the transport direction, the lower clearance recess has limiting walls on both sides in the width direction; wherein The bottom wall of the lower clearance recess extends in a direction parallel to the platform of the frame and connects with the corresponding end of the limiting wall.

3. The support device for forming packaging bags into tubes as described in claim 2, characterized in that, The upper outer wall surface of the support member is also formed with an upper clearance recess, and the upper clearance recess and the lower clearance recess are symmetrically arranged with respect to the thickness center of the support member in the vertical direction.

4. The support device for forming packaging bags into tubes as described in claim 2, characterized in that, The support component includes a first support plate and a second support plate stacked at intervals in a vertical direction, and a connector connecting the first support plate and the second support plate. The first support plate is stacked above the second support plate. The connector is located at the upstream end of the first support plate in the transport direction. The support component is fixedly connected to the mounting base via the connector. The outer surfaces of the first support plate and the second support plate, which are opposite to each other, respectively form the upper outer wall surface and the lower outer wall surface, and the vertical distance between the first support plate and the second support plate gradually decreases from the upstream end to the downstream end of the transport direction.

5. The support device for forming packaging bags into tubes as described in claim 2, characterized in that, The support component includes two support assemblies arranged side-by-side along the transport direction and with adjustable spacing in the width direction. Each support assembly includes a first support plate and a second support plate stacked below the first support plate. Furthermore, each support assembly has a connector at its upstream end in the transport direction, and the second support plate is connected to the corresponding first support plate via the connector. The upper surface of each of the first support plates constitutes the upper outer wall surface, and the lower surface of each of the second support plates constitutes the lower outer wall surface, and the vertical spacing between the first support plates and the second support plates gradually decreases from the upstream end to the downstream end in the transport direction; and Each of the support components is mounted on a corresponding mounting base via a corresponding connector, and the two mounting bases are connected to the frame via their respective adjustment components to adjust the spacing between the two support components in the width direction.

6. The support device for forming packaging bags into tubes as described in claim 5, characterized in that, Each of the pitch adjustment components includes a pitch adjustment drive, a transmission component, and a guide extending along the width direction of the frame; wherein, The output end of the pitch adjustment drive is connected to one end of the transmission component, and the other end of the transmission component is connected to the corresponding mounting base. The mounting base is slidably disposed on the guide component. The pitch adjustment drive drives the transmission component and moves the mounting base along the guide component.

7. The support device for forming packaging bags into tubes as described in claim 6, characterized in that, The adjustable drive component is configured as a drive motor, the transmission component is configured as a transmission lead screw connected to the output end of the drive motor, and the guide component is configured as a guide rail extending along the width direction of the frame; wherein... The mounting base is provided with a threaded engagement part that is connected to the corresponding transmission screw, and the mounting base is also provided with a sliding part that engages with the guide rail.

8. The support device for forming packaging bags into tubes as described in any one of claims 4 to 7, characterized in that, The supporting component is also equipped with a guide component at the upstream end of the transport direction.

9. The support device for forming packaging bags into tubes as described in claim 8, characterized in that, in, The guide component is configured as a smoothly curved guide plate located upstream of the second support plate in the transport direction; or The guiding component is configured as a guide wheel at the upstream end of the first support plate and an arc-shaped plate located on the width side of the frame and adapted to the outer periphery of the guide wheel.

10. A packaging bag production equipment, characterized in that, Includes the support device for forming packaging bags into tubes as described in any one of claims 1 to 9.

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