Adjustable edge folding matching device and bag opening machine

Abstract

The utility model belongs to the field of sewing machines, and particularly relates to an adjustable edge folding matching device and a pocket opening machine. Comprising a driving mechanism and edge folding matching mechanisms which are oppositely arranged, and the edge folding matching mechanisms are used for assisting edge folding pieces; the driving mechanism is in transmission connection with the edge folding matching mechanisms, and the driving mechanism is used for adjusting the distance between the edge folding matching mechanisms. The utility model provides an adjustable edge folding matching device and a bag opening machine. The adjustable edge folding matching device and the bag opening machine aim to solve the problem that a conventional edge folding matching device cannot be matched with openings of different sizes.

Description

Technical Field

[0001] The utility model belongs to the field of sewing, and in particular relates to an adjustable folding matching device and a bag opening machine. Background Art

[0002] The bag opening machine is a device that is often needed in the sewing field. In the process of forming the bag opening, the bag opening machine first needs to cut at a specific position of the fabric to form a Y-shaped cutting line at both ends, and then fold the folded edge at the cutting line to form a rectangular opening. The rectangular opening is then sewn and other steps are performed to form the pocket opening of the garment.

[0003] In the bag opening machine, the device that is adapted to the folded edge so that the folded edge is fixed is the folding edge matching device. For example: CN202010348853.X discloses a related structure that is adapted to the folded edge.

[0004] However, the hem-folding matching devices used to match the hem in the prior art are usually fixed. However, due to different usage scenarios, openings of different sizes need to be constructed. Therefore, the hem-folding matching devices fixed in the prior art obviously cannot meet the usage needs of openings of different sizes.

[0005] In summary, the hemming matching device in the prior art has the problem of being unable to adapt to openings of different sizes. Utility Model Content

[0006] The utility model provides an adjustable folding matching device and a bag opening machine, which aims to solve the problem that the conventional folding matching device cannot adapt to openings of different sizes.

[0007] In order to achieve the above-mentioned object, the utility model provides an adjustable hemming matching device, comprising a driving mechanism and a hemming matching mechanism arranged opposite to each other, wherein the hemming matching mechanism is used to assist hemming;

[0008] The driving mechanism is in transmission connection with the folding matching mechanism, and the driving mechanism is used to adjust the spacing between the folding matching mechanisms.

[0009] In this solution, the hemming matching mechanism is used to process the hemming piece so that the hemming piece is folded and fixed, and the driving mechanism is in transmission connection with the hemming matching mechanism. At the same time, the hemming matching mechanism arranged oppositely can assist in hemming the cloth on the opposite side.

[0010] Therefore, when the size of the opening changes, the driving mechanism can drive the hemming matching mechanism to move, so that the hemming matching mechanism moves to a position that matches the hemming piece, and the hemming matching mechanism completes the processing of the hemming piece. This solution realizes the position change of the hemming matching mechanism through the driving mechanism, so that the hemming matching mechanism can be adapted to openings of different sizes, solving the shortcomings of the prior art.

[0011] Preferably, in order to simultaneously adjust the hemming matching mechanisms located at opposite sides, the hemming matching mechanisms located at the symmetrical sides can respectively adapt to the hemming pieces at different sides. In the first solution, the symmetrically arranged hemming matching mechanisms are connected to a driving mechanism, and the driving mechanism is used to drive the symmetrically arranged hemming matching mechanisms to move closer to or away from each other.

[0012] In the first solution, it is preferred to connect the symmetrically arranged folding matching mechanisms to the same driving mechanism, and the driving mechanism can simultaneously drive the positions of the relatively arranged folding matching mechanisms to change, so that the folding matching mechanisms in relatively positions are closer to or farther away from each other.

[0013] Preferably, in order to adjust the folding matching mechanism on the symmetrical side at the same time so that the folding matching mechanism on the symmetrical side can be matched with the edge of the opening, each of the folding matching mechanisms in the second solution is connected to a driving mechanism in a one-to-one correspondence.

[0014] In the second solution, it is preferred that each folding matching mechanism is connected to a driving mechanism respectively, so that the folding matching mechanisms arranged opposite to each other can approach or move away from each other under the action of their respective driving mechanisms.

[0015] Preferably, in order to realize the driving of the folding matching mechanism, the driving mechanism in this solution preferably includes a transmission component and a power module, the power module is transmission-connected to the transmission component, and the transmission component is connected to the folding matching mechanism in a one-to-one correspondence.

[0016] In this solution, the driving mechanism includes a transmission component and a power module, and the transmission component is connected to the folding matching mechanism. Therefore, when the power module works, the power module can drive the transmission component to move, and finally the position of the folding matching mechanism is changed.

[0017] Preferably, in order to simultaneously drive the folding matching mechanisms located at symmetrical positions in Scheme 1, Scheme 1 preferably comprises a power module including a driving motor and a rack component, the output shaft of the driving motor is configured with a gear, the rack component is provided in two numbers, and they are respectively meshed with the two sides of the gear for transmission, and the two rack components are connected one-to-one with the transmission components located at symmetrical positions.

[0018] In the first scheme, the output gear of the driving motor drives the two rack components to move closer to or farther from each other, and since the two rack components and the transmission components are arranged in a one-to-one correspondence, when the two rack components move closer to or farther from each other, the rack components can drive the hemming matching mechanism connected thereto to move closer to or farther from each other. Through the above scheme, it is achieved that the hemming matching mechanisms on both sides are driven simultaneously by a driving motor, which is more efficient and ensures the coordination of the hemming matching mechanisms on both sides.

[0019] Preferably, in order to fix the rack component and guide the movement of the rack component, a guide component is provided corresponding to the rack component in this solution, and the guide component is used to guide the movement of the rack component.

[0020] In this solution, the rack component is fixed by the guide component to ensure stable meshing of the rack component and the gear. In addition, the guide component can guide the rack component to avoid deviation when the rack component moves, and the rack component moves more accurately.

[0021] Preferably, in order to fix the folded edge piece and avoid the springback of the folded edge piece, the folding matching mechanism of the present invention preferably includes a cloth clamping module, and the cloth clamping module is used to clamp and fix the folded edge piece.

[0022] In this solution, by configuring the cloth clamping module, when the folded edge piece is folded, the folded edge piece is adapted to the cloth clamping module, and the folded edge piece can maintain a stable state after being folded.

[0023] In order to realize the formation of folded edges on the folded edge pieces, in the present solution, the folding cooperation mechanism preferably includes a folding module, and the folding module is used to form folded edges on the folded edge pieces.

[0024] In this solution, when the hemming piece at the opening is folded, the hemming module can hold the folded hemming piece against the hemming piece, so that the hemming piece forms a hem.

[0025] Preferably, in order to guide the movement of the folding matching mechanism and avoid the deviation of the folding matching mechanism, the present solution also includes a guiding mechanism, which is connected to the folding matching mechanism and is used to guide the movement of the folding matching mechanism.

[0026] In this solution, the guide mechanism is connected to the hemming matching mechanism, and the guide mechanism guides the hemming matching mechanism to move, so that the hemming matching mechanism will not deviate when moving, thereby ensuring the accuracy of the movement of the hemming matching mechanism.

[0027] In order to achieve guidance, the guiding mechanism in this solution includes a guiding rod and a guiding hole, the guiding rod is connected to the folding matching mechanism, the guiding hole is fixedly arranged, and the guiding rod is accommodated inside the guiding hole.

[0028] In this solution, the guide rod and the guide hole are in a matching state, the guide hole can realize the constraint and restriction of the guide rod, and the guide rod is fixedly connected with the hemming matching mechanism. Therefore, when the hemming matching mechanism moves, the hemming matching mechanism is also guided.

[0029] In addition, in order to ensure that both sides of the folding matching mechanism move accurately, the present solution preferably configures both sides of the folding matching mechanism to be connected to the guide mechanism.

[0030] The second aspect of the utility model further provides a bag opening machine, comprising the above-mentioned adjustable folding matching device and a folding device, wherein the folding device is used to fold the folding piece, and the folding matching device is used to adapt to the folded folding piece.

[0031] In this solution, a folding device is provided to fold the folding sheet, and then the folded folding sheet is processed by a folding matching device to form a folded edge and is clamped and fixed.

[0032] The beneficial effect of the utility model is that the hemming matching mechanism in the present solution is used to process the hemming sheet so that the hemming sheet forms a hem and is fixed, and at the same time, the driving mechanism is connected to the hemming matching mechanism by transmission. Therefore, when the size of the opening changes, the driving mechanism can drive the hemming matching mechanism to move so that the hemming matching mechanism moves to a position that matches the hemming sheet, and the hemming matching mechanism completes the processing of the hemming sheet. The present solution realizes the position change of the hemming matching mechanism through the driving mechanism, so that the hemming matching mechanism can be adapted to openings of different sizes, thereby solving the shortcomings of the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The figure is a schematic diagram of the structure of an adjustable hemming matching device.

[0034] Figure 2 It is a structural schematic diagram of the folding matching mechanism.

[0035] Figure 3 It is a structural diagram of the driving mechanism.

[0036] Figure 4 3. FIG. 4 is a top view of the driving mechanism of FIG.

[0037] The reference numerals include: folding matching mechanism 1, folding module 11, folding piece 111, first telescope 112, cloth clamping module 12, clamping piece 121, transmission member 122, second telescope 123, rotating shaft seat 124, mounting plate 125, driving mechanism 2, transmission component 21, driving motor 22, rack component 23, guide component 24, guide mechanism 3, guide block 31, guide rod 32. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are only examples of devices and methods consistent with some aspects of the present disclosure as detailed in the attached claims.

[0039] It should be noted that all actions to obtain signals, information or data in this application are carried out in compliance with the relevant data protection laws and policies of the country where they are located, and with the authorization given by the owner of the corresponding device.

[0040] In the present disclosure, unless otherwise stated, the directional words used, such as "inside" and "outside", are defined according to the corresponding parts' own contours. The terms used in the present disclosure, such as "first" and "second", etc., are used to distinguish one element from another element and do not have order and importance.

[0041] Example 1

[0042] Basically as attached Figure 1 As shown, an adjustable hemming fitting device is mainly used to adapt to openings of different sizes and to form hemming sheets at the openings and fix them.

[0043] like Figure 1 As shown, the adjustable hemming matching device in the disclosed embodiment specifically includes a hemming matching mechanism 1 and a driving mechanism 2. The hemming matching mechanism 1 is used to process the folded hemming sheet so that the hemming sheet forms a hem at the opening and fix the folded hemming sheet to prevent the hemming sheet from rebounding. In the disclosed embodiment, the driving mechanism 2 is connected to the hemming matching mechanism 1 in a transmission manner. When the driving mechanism 2 is working, the driving mechanism 2 drives the hemming matching mechanism 1 to change its position.

[0044] Take an application scenario as an example: when the opening size of the fabric changes, the driving mechanism 2 can drive the folding matching mechanism 1 to move, so that the folding matching mechanism 1 moves to a position where it can adapt to the folding piece, ensuring that the folding matching mechanism 1 adapts to the opening after the size change.

[0045] like Figure 2 As shown, the hemming matching mechanism 1 in the embodiment of the present disclosure specifically comprises a hemming module 11 and a cloth clamping module 12. The hemming module 11 is used to make the folded hemming sheet form a hem. The cloth clamping module 12 is used to fix the folded hemming sheet to prevent the hemming sheet from rebounding.

[0046] like Figure 2As shown, the folding module 11 in the embodiment of the present disclosure includes a folding piece 111 and a first telescopic device 112, wherein the first telescopic device 112 may be a telescopic cylinder or a telescopic oil cylinder, and the first telescopic device 112 is used to provide power. The tail end of the folding piece 111 is fixedly connected to the telescopic end of the first telescopic device 112, and specifically, the connection may be made by configuring a fastener or directly welding.

[0047] Take an application scenario as an example: before the hem piece is folded, the first retractor 112 drives the hem piece 111 to extend, and the front end of the hem piece 111 moves to the edge of the opening. Afterwards, the folded hem piece can be wrapped around the front end of the hem piece 111, so that the hem piece forms a hem. At the same time, when the hem piece with the hem formed is fixed, the first retractor 112 drives the hem piece 111 to retract, so as to prevent the hem piece 111 from affecting the subsequent sewing process.

[0048] like Figure 2 As shown, the cloth clamping module 12 in the embodiment of the present disclosure is used to fix the hemming sheet after the hemming is formed. The cloth clamping module 12 specifically includes a clamping piece 121 and a rotating module. The clamping piece 121 is in a long strip shape, and the clamping piece 121 is used to contact the hemming sheet after folding, and fix and clamp the hemming sheet to prevent the hemming sheet from rebounding. The rotating module includes a transmission member 122, a mounting plate 125, a rotating shaft, a rotating shaft seat 124 and a second telescopic device 123. The mounting plate 125 is rectangular. The left and right sides of the front end of the mounting plate 125 are respectively provided with rotating shaft seats 124, and the rotating shaft seats 124 are installed on the mounting plate 125 by setting fasteners. The rotating shaft seats 124 located on the left and right sides of the front end of the mounting plate 125 are both constructed with shaft holes that horizontally penetrate the rotating shaft seats 124. The left and right ends of the rotating shaft are respectively adapted to the inside of the shaft holes of the rotating shaft seats 124 on both sides, so that the rotating shaft remains stable. In the embodiment of the present disclosure, the rotating shaft can be rotatably arranged inside the rotating shaft, or the two ends of the rotating shaft can be directly fixed to the rotating shaft, for example, by welding. The middle part of the transmission member 122 is also provided with an axial hole, and the rotating shaft passes through the transmission member 122 from the axial hole of the transmission member 122, so that the transmission member 122 can be rotatably installed on the rotating shaft, and the transmission member 122 can rotate around the rotating shaft. The clip 121 is fixedly connected to the bottom of the transmission member 122, specifically, it can be connected by welding or configuring fasteners, and the second telescopic device 123 can be a telescopic cylinder or a telescopic oil cylinder, etc. The second telescopic device 123 is installed on the mounting plate 125, and the second telescopic device 123 is connected to the top of the transmission member 122.

[0049] Taking an application scenario as an example, when the telescopic end of the second telescopic device 123 is extended, the telescopic end of the second telescopic device 123 drives the upper end of the transmission member 122 to move forward. When the upper end of the transmission member 122 moves forward, the transmission member 122 can rotate around the rotation axis, and the lower end of the transmission member 122 moves backward. When the lower end of the transmission member 122 moves backward, the clip 121 connected to the lower end of the transmission member 122 can be tilted, so that the folding piece can enter the clip 121 and be clamped, or the folding piece is separated from the clip 121. When the telescopic end of the second telescopic device 123 is retracted, the telescopic end of the second telescopic device 123 drives the upper end of the transmission member 122 to move backward. When the upper end of the transmission member 122 moves backward, the transmission member 122 can rotate around the rotation axis, and the lower end of the transmission member 122 moves forward. When the lower end of the transmission member 122 moves forward, the clip 121 connected to the lower end of the transmission member 122 can be pressed together, so that the folding piece is fixed.

[0050] In order to enable the clip 121 to clamp the hemming piece more stably, the clamping end of the clip 121 is also provided with a restraining tooth, so as to ensure that the clamping end of the clip 121 can stably fix the hemming piece and prevent the hemming piece from sliding. The restraining tooth is provided on the upper surface of the clamping end of the clip 121. The restraining tooth can provide greater friction force, preventing the hemming piece from sliding away from the clamping end of the clip 121.

[0051] In order to make the structure of the folding matching mechanism 1 more compact, in the embodiment of the present disclosure, the folding module 11 is preferably installed at the bottom of the mounting plate 125, so that the folding module 11 and the cloth clamping module 12 are fixed together, the device is more integrated, and there is no interference with each other.

[0052] It should be noted that: the folding matching mechanism 1 in the embodiment of the present disclosure includes both a folding module and a cloth clamping module 12. However, in some other possible embodiments, the folding matching mechanism 1 may include only one of the folding module and the cloth clamping module 12. For example: in some embodiments, the folding and folding process of the folding piece is uniformly performed manually, and after the folding piece is folded and the folding is formed, the folding piece is clamped and fixed by the cloth clamping module 12. At this time, there is no need to set up the folding module 11. In addition, the embodiment of the present disclosure provides an implementation method of a folding module 11 and a cloth clamping module 12, but other devices for folding and fixing the folded edges in the prior art can also be applied to the present application.

[0053] In the embodiment of the present disclosure, the opening is rectangular, so in order to realize the processing of the hemming pieces on different sides. Figure 1As shown, the hemming matching mechanism 1 in the embodiment of the present disclosure is provided with two, and is arranged opposite to each other, and each hemming matching mechanism 1 is arranged on different sides. In the embodiment of the present disclosure, the hemming matching mechanism 1 is respectively arranged at the left and right sides or the front and back sides of the opening. The hemming matching mechanism 1 located at the left and right sides or the front and back sides can realize the processing of the hemming pieces at the left and right sides or the front and back sides.

[0054] In the embodiment of the present disclosure, the folding matching mechanisms 1 that are preferably located opposite to each other are connected to a driving mechanism 2 at the same time. When the driving mechanism 2 is working, the driving mechanism 2 can drive the folding matching mechanisms 1 that are located opposite to each other to move closer or farther away from each other. When the folding matching mechanisms 1 that are located opposite to each other move closer to each other, they can adapt to openings with smaller sizes; when the folding matching mechanisms 1 that are located opposite to each other move farther away from each other, they can adapt to openings with larger sizes.

[0055] like Figure 3 As shown, the driving mechanism 2 in the embodiment of the present disclosure includes a transmission component 21 and a power module. The transmission component 21 in the embodiment of the present disclosure is specifically a transmission bar, and two transmission bars are provided, which are respectively connected one by one with the folding matching mechanism 1 symmetrically arranged on the left and right. During implementation, the transmission bar can be fixedly connected to the mounting plate 125 by configuring a fastener, so that the transmission bar is fixedly connected to the folding matching mechanism 1.

[0056] like Figure 3 and Figure 4 As shown, the power module in the embodiment of the present disclosure includes a driving motor 22 and two rack components 23. The two rack components 23 are respectively connected to the transmission bar one by one. During implementation, the rack component 23 and the transmission bar can be connected to each other by welding or configuring fasteners. When the rack component 23 is connected to the transmission bar, the rack component 23 and the transmission bar are distributed in an L shape as a whole. In the embodiment of the present disclosure, the driving motor 22 is vertically installed at a position such as a frame, and the output shaft of the driving motor 22 is configured with a gear. In the embodiment of the present disclosure, the two rack components 23 are preferably arranged horizontally, and are respectively arranged on the front and rear sides of the gear, and the rack component 23 and the gear are in a state of mutual meshing.

[0057] Take an application scenario as an example: when the drive motor 22 drives the gear to rotate clockwise, the rack parts 23 located on the front and rear sides of the gear move away from each other. When the rack parts 23 move away from each other, the transmission parts 21 connected to the rack parts 23 also move away from each other. Since the transmission parts 21 are connected to the folding matching mechanism 1 in a one-to-one correspondence, the folding matching mechanisms 1 on both sides also move away from each other, thereby adapting to larger openings. When the drive motor 22 drives the gear to rotate counterclockwise, the rack parts 23 located on the front and rear sides of the gear move closer to each other. When the rack parts 23 move closer to each other, the transmission parts 21 connected to the rack parts 23 also move closer to each other. Since the transmission parts 21 are connected to the folding matching mechanism 1 in a one-to-one correspondence, the folding matching mechanisms 1 on both sides also move closer to each other, thereby adapting to smaller openings.

[0058] like Figure 3 As shown, in the embodiment of the present disclosure, the driving motor 22 can be installed on the frame of the bag opening machine by configuring fasteners, so that the driving motor 22 can work stably. At the same time, in order to make the rack component 23 always keep the state of meshing with the driving motor 22, and the rack component 23 moves more accurately. In the embodiment of the present disclosure, a guide component 24 is provided at the bottom of each rack component 23, and the guide component 24 is a slide rail slider module. The slide rail slider module includes a slide rail and a slider, and the slider can be installed to the bottom of the rack component 23 by configuring fasteners or welding. The slide rail can be installed on a position such as a frame by configuring fasteners or welding. The slide rail and the slider are in a matching installation state. When the rack component 23 is driven to move by the driving motor 22, the slider moves along the slide rail, and the rack component 23 realizes the moving guide. At the same time, since the guide rail is fixed, the guide rail also realizes the fixation of the rack component 23, ensuring the stable meshing of the rack component 23 with the gear.

[0059] It should be noted that the power module disclosed in the embodiment of the present disclosure adjusts the position of the hemming matching mechanism 1 by driving the rack to move via the driving motor 22. However, it is obvious that the power module may also be other power modules in the prior art.

[0060] The embodiment of the present disclosure also includes a guide mechanism 3, such as Figure 1 and Figure 2As shown, the guide mechanism 3 is used to guide the precise movement of the folding matching mechanism 1 to avoid the deviation of the folding matching mechanism 1. The guide mechanism 3 in the embodiment of the present disclosure includes a guide rod 32 and a guide hole. The guide rod 32 is provided in two, which are respectively located on the left and right sides of the folding matching mechanism 1. The guide rod 32 can be specifically connected to the rotating shaft seat 124 in the cloth clamping module 12. The setting direction of the guide rod 32 is parallel to the movement direction of the folding matching mechanism 1. The guide hole is provided inside the guide block 31, and the guide hole is provided through the guide block 31. The guide block 31 is fixedly installed, and can also be installed on a frame. The setting direction of the guide hole is parallel to the movement direction of the folding matching mechanism 1, and the guide rod 32 is accommodated inside the guide hole.

[0061] Take an application scenario as an example: when the folding cooperation mechanism 1 moves, the folding cooperation mechanism 1 moves along the setting direction of the guide rod 32 and the guide hole, and the guide rod 32 and the guide hole cooperate to guide the folding cooperation mechanism 1.

[0062] The following is a further detailed description through a specific implementation method: When the drive motor 22 drives the gear to rotate clockwise, the rack parts 23 located on the front and rear sides of the gear move away from each other. When the rack parts 23 move away from each other, the transmission parts 21 connected to the rack parts 23 also move away from each other. Since the transmission parts 21 are connected to the folding matching mechanism 1 in a one-to-one correspondence, the folding matching mechanisms 1 on both sides also move away from each other, thereby adapting to a larger opening. When the drive motor 22 drives the gear to rotate counterclockwise, the rack parts 23 located on the front and rear sides of the gear move closer to each other. When the rack parts 23 move closer to each other, the transmission parts 21 connected to the rack parts 23 also move closer to each other. Since the transmission parts 21 are connected to the folding matching mechanism 1 in a one-to-one correspondence, the folding matching mechanisms 1 on both sides also move closer to each other, thereby adapting to a smaller opening.

[0063] Example 2

[0064] The difference between the embodiment of the present disclosure and the embodiment 1 is that the embodiment of the present disclosure also has two folding matching mechanisms 1, which are arranged opposite to each other and located on the left and right sides or the front and back sides of the opening. However, each folding matching mechanism 1 in the embodiment of the present disclosure is connected to a driving mechanism 2 in a one-to-one correspondence.

[0065] The driving mechanism 2 in the embodiment of the present disclosure also includes a transmission component 21 and a power module. The transmission component 21 can be a transmission block or a transmission plate. The transmission component 21 is fixedly connected to the mounting plate 125 of the folding matching mechanism 1. When implemented, it can be connected by welding or configuring fasteners. The power module is preferably a driving cylinder, and the telescopic cylinder is fixedly set. The telescopic end of the driving cylinder is fixedly connected to the transmission component 21. When implemented, it can be connected by configuring fasteners or welding.

[0066] In the disclosed embodiment, when it is necessary to adapt to openings of different sizes, the driving mechanism 2 can respectively drive the corresponding folding matching mechanism 1 to perform telescopic movement, so that the position of the folding matching mechanism 1 is adapted to the size of the opening.

[0067] Example 3

[0068] The disclosed embodiment provides a bag opening machine, comprising the adjustable hemming piece adapter device, hemming device and frame of embodiment 1 or embodiment 2.

[0069] The adjustable hemming piece adapter and the hemming device described in the embodiment of the present disclosure are both installed on a frame, and the frame can be a bag opening machine frame in the prior art, which is not shown in the figure.

[0070] In the disclosed embodiment, the adjustable hemming piece adapter device and the hemming device are respectively installed in a top-to-bottom cooperation. A protrusion is provided at the bottom edge of the hemming device. When the hemming device moves under the drive of the power module, the protrusion at the edge of the hemming device pushes the hemming piece, so that the hemming piece is folded. The folded hemming piece is adapted to the adjustable hemming piece adapter device, so that the hemming piece forms a hemming and is fixed.

[0071] The power module in the embodiment of the present disclosure may be a power mechanism in the prior art, such as a robotic arm.

[0072] It should be noted that in order to make the bag opener more automated, the bag opener in the embodiment of the present disclosure can also be equipped with related devices that are matched with the bag opener in the prior art. For example, a laser cutting device, etc. The laser device can cut openings of different sizes, and the adjustable hem adapter device can adapt to openings of different sizes.

[0073] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An adjustable hemming device, characterized in that: It includes a driving mechanism and a hemming matching mechanism arranged opposite to each other, wherein the hemming matching mechanism is used for assisting hemming; The driving mechanism is in transmission connection with the folding matching mechanism, and the driving mechanism is used to adjust the spacing between the folding matching mechanisms.

2. The adjustable hemming matching device according to claim 1, characterized in that: The oppositely arranged folding matching mechanisms are connected to a driving mechanism, and the driving mechanism is used to adjust the distance between the oppositely arranged folding matching mechanisms.

3. The adjustable hemming matching device according to claim 1, characterized in that: Each of the folding matching mechanisms is connected to a driving mechanism in a one-to-one correspondence.

4. The adjustable hemming matching device according to any one of claims 1 to 3, characterized in that: The driving mechanism comprises a transmission component and a power module. The power module is in transmission connection with the transmission component. The transmission component is connected with the folding matching mechanism in a one-to-one correspondence.

5. The adjustable hemming matching device according to claim 4, characterized in that: The power module includes a driving motor and a rack component. The output shaft of the driving motor is configured with a gear. The rack components are provided in two and mesh with both sides of the gear for transmission respectively. The two rack components are connected to the transmission components located at symmetrical positions in a one-to-one correspondence.

6. The adjustable hemming matching device according to claim 5, characterized in that: A guide component is provided corresponding to the rack component, and the guide component is used for guiding the rack component to move.

7. The adjustable hemming matching device according to claim 1, characterized in that: The folding matching mechanism includes a cloth clamping module, and the cloth clamping module is used to clamp and fix the cloth; and / or; The hemming matching mechanism comprises a hemming module, and the hemming module is used to make the hemming sheet form a hem.

8. The adjustable hemming matching device according to claim 1, characterized in that: It also includes a guiding mechanism, which is connected to the folding matching mechanism and is used to guide the movement of the folding matching mechanism.

9. A bag opening machine, characterized in that: It comprises the adjustable hemming matching device and the hemming tool as described in any one of claims 1 to 8, wherein the hemming tool is used to fold the hemming piece, and the hemming matching device is used to adapt to the folded hemming piece.

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