Stop hook component for edge folding device, edge folding device and bag opening machine
By designing a combined hook part and elastic adjustment system, the problem that existing folding parts cannot adapt to bag mouths of different sizes is solved, and efficient and flexible folding functions are achieved, improving the versatility and accuracy of the folding device.
Patent Information
- Application Number
- CN202421084944.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-17
AI Technical Summary
The existing folding parts cannot meet the folding needs of bag mouths of different sizes at the same time, and cannot be used for different sizes after combination, which lacks flexibility and versatility.
A hook blocking component is designed, adopting a sheet-like structure and a hook-shaped folding structure, allowing multiple hook blocks to be used in combination. The spacing is automatically adjusted through elastic components to meet the folding needs of bag mouths of different sizes, and fold it in Positioning surfaces, limiting surfaces and sinking grooves are introduced into the edge structure to reduce friction and adapt to fabrics of different thicknesses.
It can meet the folding needs on both sides at the same time, and is suitable for bags with different sizes, which improves the versatility and accuracy of the folding device, and does not require disassembly and change gear hook parts, and the automatic adjustment function enhances flexibility.
Smart Images
Figure CN222251298U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bag opening equipment, in particular to a retaining hook component for a folding device, a folding device and a bag opening machine. Background Art
[0002] A bag opening machine (or bag opening machine, bag opening sewing machine, etc.) is a sewing machine specially used for sewing bags. It is mainly used for sewing pockets, zippers and other parts in the clothing, luggage and other industries, and is widely used in the sewing industry.
[0003] The processing of the bag opening requires cutting, folding (or bag folding), sewing and other processes, among which the folding process is usually achieved by using a folding component. Therefore, existing bag opening machines are usually equipped with a folding component. During the bag opening process, a seam that fits the bag opening is first cut in the bag opening area, and then the folding component is inserted into the bag opening area so that the folding piece at the edge of the bag opening can be folded by the folding component, and the folding piece is folded to the inside of the bag opening to form the desired bag opening shape. The existing folding components are usually constructed in an L-shaped structure, and a folding component needs to be configured for each side of the bag opening. For example, a bag opening folding mechanism for clothing bag opening processing disclosed in Chinese patent CN212655959U and a bag folding mechanism of a bag opening machine disclosed in Chinese patent CN 218026643 U all use L-shaped folding components and need to be configured with four folding components. Each folding component can only meet the folding requirements on one side, and the existing folding components can only be applied to bag openings of fixed sizes. When the size of the bag opening changes, the folding components of the corresponding size need to be replaced. In the early stage of research and development, a folding device that can be applied to bag openings of different sizes was designed, which requires multiple folding components to be combined, but the existing folding components do not meet the combination requirements, and after the combination, they cannot achieve the purpose of being applicable to different sizes, which needs to be solved urgently. Utility Model Content
[0004] The first aspect of the utility model is to solve the above technical problems and provide a hook component suitable for a bag opening device, which can not only meet the folding requirements of both sides at the same time, but also meet the folding requirements of bags of different sizes. The main concept is:
[0005] A hook-blocking component for a bag opening device comprises a hook-blocking piece of a sheet structure, and hook-shaped folding structures are respectively constructed on both sides of the hook-blocking piece, and the folding structures are used to assist in folding. In this solution, by constructing the hook-blocking piece as a sheet structure and constructing the folding structure on the side of the hook-blocking piece, multiple hook-blocking pieces do not interfere with each other when combined, which is conducive to the combined use of multiple hook-blocking pieces to jointly realize the folding function on one side of the bag opening, and is conducive to meeting the folding requirements of bag openings of different sizes; by constructing hook-shaped folding structures on both sides of the hook-blocking piece, the folding structures on both sides can respectively assist the bag edge on the corresponding side to complete the folding, so that the hook-blocking component can simultaneously meet the folding requirements on both sides.
[0006] Preferably, the folding structures on both sides of the retaining hook piece are arranged symmetrically, which is beneficial to simplifying the structure and the folding process.
[0007] Furthermore, the hemming structure includes a positioning surface and a hook portion protruding from the positioning surface, the hook portion is configured with a limiting surface for limiting the hemming piece, and the positioning surface and the limiting surface form a hook shape, so as to cooperate with the corresponding hemming process to realize the hemming function.
[0008] Preferably, the positioning surface is a vertical plane, the limiting surface is a plane, and the limiting surface is perpendicular to the positioning surface, which is convenient for processing into a shape and is conducive to achieving a better folding effect.
[0009] The second aspect of the utility model is to solve the problem that fabrics of different thicknesses can achieve more perfect folding. Furthermore, a sinking groove is constructed on the side of the limiting surface close to the positioning surface, and the two ends of the sinking groove respectively penetrate the two ends of the blocking hook. The sinking design can, on the one hand, reduce the area of the limiting surface, thereby reducing the friction during the folding process, and on the other hand, form a accommodating space at a position close to the positioning surface, so that fabrics of different thicknesses can be bent smoothly and achieve the desired folding effect.
[0010] Preferably, the sinking groove is a square groove, which is convenient for processing and forming.
[0011] Preferably, a side wall of the sinking groove is flush with the positioning surface.
[0012] Preferably, the outer side surface of the hook portion is also configured with a guide surface, which extends to the lower end of the hook-blocking piece, and the width of the hook-blocking piece gradually decreases from the upper edge of the guide surface to the lower end of the hook-blocking piece, which can reduce the resistance when inserting the fabric, prevent the insertion action from driving the fabric to move and cause errors, and facilitate faster and more accurate realization of the bag opening function.
[0013] In order to prevent the mutual interference during the action process, further, the folding structure is constructed on the side of the lower end of the blocking hook piece, and the side of the blocking hook piece is also constructed with an inclined surface, so that the width of the blocking hook piece gradually decreases along the direction close to the folding structure. The width of the upper end of the blocking hook piece is large and the width of the lower end is small, thereby preventing the lower end of the blocking hook piece from interfering with other components.
[0014] In some solutions, the retaining hook piece is also configured with a mounting portion for installation, so that the mounting portion can be conveniently installed.
[0015] In some solutions, the blocking hook piece is also configured with a matching portion adapted to the guide portion, so that the blocking hook piece can be constrained by the matching portion and can also be guided for movement by the matching portion and the guide portion.
[0016] To improve the accuracy, the blocking hook piece is further configured with at least two matching parts to match at least two guide parts, so that the blocking hook piece can be strictly limited and constrained by the cooperation between at least two matching parts and at least two guide parts, thereby achieving higher guiding accuracy.
[0017] Preferably, the matching portion is a guide hole so as to fit the guide rod.
[0018] Furthermore, the retaining hook piece is also configured with a groove, which is connected to the guide hole and is used to accommodate at least part of the elastic component, so that the elastic component disposed between two adjacent retaining hook components can be accommodated in the groove, so that the distance between the two adjacent retaining hook components can be smaller, or even contact each other, so as to meet the demand for opening a bag of a smaller size.
[0019] A folding device comprises a carrier, two end parts, a guide mechanism, a power component and at least two hook parts, wherein the two end parts are arranged relative to each other, at least one end part is connected to the guide mechanism and can move along the guide mechanism; each hook part is arranged in a row between the two end parts, each hook part is connected to the guide mechanism and can move along the guide mechanism; an elastic component is arranged between at least two adjacent hook parts; the power component is arranged on the carrier, and the power component is connected to the movable end part for adjusting the position of the end parts, when the two end parts are close to each other, the hook parts are synchronously driven to be close to each other, and the elastic potential energy of the elastic component increases; when the end parts are far away from each other, the hook parts are synchronously driven to be far away from each other, and the elastic potential energy of the elastic component decreases. In this design, the power component can drive the end parts to move, thereby changing the distance between the adjacent two end parts, and the change of the distance between the adjacent two end parts will cause the change of the elastic force in the elastic part, thereby driving the elastic part to expand and contract, and then the distance between the adjacent two hook parts can be automatically changed by using the expansion and contraction of the elastic part, so that the combined structure of each hook part can meet the folding requirements of bags of different sizes. Compared with the existing technology, the folding mechanism can not only meet the folding requirements of bags of different sizes, but also can realize automatic adjustment without the need to disassemble and replace the hook parts, and has better versatility, which completely solves the drawbacks of the existing technology.
[0020] Preferably, two guiding mechanisms are included, namely a first guiding mechanism and a second guiding mechanism, wherein the first guiding mechanism adopts a guide rail slider mechanism, and the two end components are respectively connected to the sliders in the guide rail slider mechanism; the second guiding mechanism includes a guide shaft, an elastic component is sleeved on the guide shaft, and each hook component is respectively sleeved on the guide shaft through a guide hole; it also includes a linear drive module, a power component is transmission-connected to the linear drive module, the linear drive module is transmission-connected to the end components, and the power component drives the two end components to move synchronously in reverse.
[0021] A bag opening machine comprises a frame and the folding device, wherein the folding device is installed on the frame.
[0022] Compared with the prior art, the hook component provided by the utility model can not only meet the folding requirements of both sides at the same time, but also can be used in combination with each other to meet the folding requirements of bag openings of different sizes in the folding device, effectively improving the versatility of the folding device. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0024] Figure 1 This is a schematic structural diagram of a hook component provided in Example 1 of the utility model.
[0025] Figure 2 for Figure 1 main view.
[0026] Figure 3 This is a schematic structural diagram of a hook component provided in Example 2 of the utility model.
[0027] Figure 4 for Figure 3 main view.
[0028] Figure 5 This is a structural schematic diagram of a folding device provided in Example 3 of the utility model, and the folding device is in a retracted state.
[0029] Figure 6 for Figure 5 Cross-sectional view at AA in the middle.
[0030] Figure 7 for Figure 5 Right view of .
[0031] Figure 8 This is a structural schematic diagram of a folding device provided in Example 3 of the utility model, and the folding device is in an extended state. Fig. 9 for Figure 8 Cross-sectional view at the middle BB.
[0032] Fig.10 This is a schematic structural diagram of another folding device provided in Example 3 of the utility model, in which the folding device is in a retracted state.
[0033] Markings in the figure are as follows: hook stop component 1, hook stop plate 11, folding structure 12, positioning surface 121, hook portion 122, limiting surface 123, inclined surface 13, guide surface 14, guide hole 15, groove 16, sinking groove 17; folding device 2, carrier frame 21, power component 22, screw rod 23, nut 24, driving wheel 25, driven wheel 26, transmission belt 27, elastic component 28; end component 3a; first guide mechanism 4, guide rail 41, slider 42; guide shaft 5. DETAILED DESCRIPTION
[0034] The technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, rather than all the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the utility model.
[0035] Example 1
[0036] The present embodiment provides a hook block component 1 for a bag opening device, including a hook block sheet 11 of a sheet structure. The thickness of the hook block sheet 11 can be determined according to actual needs. Preferably, in implementation, the thickness of the hook block sheet 11 can be preferably configured to be 2 to 50 mm. Of course, the present embodiment does not limit the thickness of the hook block sheet 11 to this range. As an example, in the present embodiment, the thickness of the hook block sheet 11 is 5 mm. In the present embodiment, by configuring the hook block sheet 11 as a sheet structure, the hook block sheet 11 is flatter, so that multiple hook blocks 11 do not interfere with each other when combined and matched with each other, which is conducive to the coordinated use of multiple hook blocks 11.
[0037] For ease of description, in this embodiment, the two sides along the thickness direction of the blocking hook piece 11 are respectively referred to as the two ends of the blocking hook piece 11, and the two sides along the width direction of the blocking hook piece 11 are respectively referred to as the two sides of the blocking hook piece 11. Figure 1 and Figure 2 As shown, in this embodiment, the two sides of the hook-blocking piece 11 are respectively constructed with hook-shaped folding structures 12, and the folding structures 12 are mainly used to assist in completing the folding work. Since the two sides of the hook-blocking piece 11 are respectively constructed with hook-shaped folding structures 12, the hook-blocking part 122 can simultaneously meet the folding requirements on both sides of the bag opening.
[0038] In implementation, the folding structures 12 on both sides may be different in structure and position, but in a preferred embodiment, the folding structures 12 on both sides of the retaining hook piece 11 may be symmetrically arranged, such as Figure 1 and Figure 2 As shown, it is beneficial to simplify the structure and simplify the folding process.
[0039] In implementation, the hem structure 12 may include a positioning surface 121 located on the inner side and a hook portion 122 protruding from the positioning surface 121, and the two positioning surfaces 121 are arranged opposite to each other. Figure 1 and Figure 2As shown, at the same time, the hook portion 122 is configured with a limiting surface 123 for limiting the hemming piece, so that the positioning surface 121 and the limiting surface 123 form a hook shape, so as to cooperate with the corresponding hemming process to achieve the hemming function. In implementation, the positioning surface 121 can be configured as a vertical plane, such as Figure 1 and Figure 2 As shown, in addition, the positioning surface 121 can also be constructed as an inclined surface 13 inclined to the vertical direction. Of course, the positioning surface 121 can also be constructed as an arc surface. In implementation, the limiting surface 123 can preferably be a plane. When the positioning surface 121 is a vertical plane, the two are exactly perpendicular to each other, such as Figure 1 and Figure 2 As shown, it is convenient to process into a shape and is conducive to achieving a better folding effect. In addition, the limiting surface 123 can also be a curved surface or a slope 13 inclined to the horizontal direction. In implementation, the limiting surface 123 can be a single surface or a combination of multiple surfaces. In implementation, the spacing between the positioning surface 121 and the outer side surface of the hook 122 is usually smaller than the size of the folding piece, so that after the folding is completed, at least part of the folding piece is located outside the hook 122 for clamping. In implementation, the spacing can preferably be 1 to 5 mm. As an example, in one embodiment, the spacing can be equal to 2.5 mm.
[0040] In implementation, the folding structure 12 can be preferably constructed on the side of the lower end of the blocking hook piece 11, such as Figure 1 and Figure 2 As shown, the side of the hook piece 11 is also configured with an inclined surface 13, as shown in FIG. Figure 1 and Figure 2 As shown, the width of the blocking hook piece 11 gradually decreases along the direction approaching the folding structure 12, so that the width of the upper end of the blocking hook piece 11 is large and the width of the lower end is small, thereby preventing the lower end of the blocking hook piece 11 from interfering with other components and making it easier to cooperate with other components.
[0041] In implementation, the outer side surface of the hook portion 122 is also configured with a guide surface 14, which extends to the lower end of the blocking hook piece 11. From the upper edge of the guide surface 14 to the lower end of the blocking hook piece 11, the width of the blocking hook piece 11 gradually decreases. Figure 1 and Figure 2 As shown, especially when the folding structures 12 on both sides are arranged symmetrically, the lower end of the hook component 1 can form a sharp corner, which can reduce the resistance when inserting the fabric, prevent the insertion action from driving the fabric to move and cause errors, and is conducive to realizing the bag opening function more quickly and accurately.
[0042] In actual use, the hook member 1 usually needs to be assembled movably so as to adapt to bag openings of different sizes through the cooperation of multiple hook members 1. Therefore, in order to facilitate the assembly of the hook member 1, in one embodiment, the hook piece 11 is also configured with a mounting portion for installation, so as to facilitate installation through the mounting portion. In implementation, the mounting portion can be a mounting hole, a mounting column, etc., so that the hook member 1 can be installed on the guide mechanism through the mounting portion. The guide mechanism is usually equipped with a guide portion and a matching portion adapted to the guide portion. For example, when the guide mechanism adopts a guide rail slider mechanism, the guide portion is a guide rail 41, and the matching portion is a slider 42 adapted to the guide rail 41. During assembly, the hook member 1 can be installed on the slider 42 in the guide mechanism through the mounting portion, so that the hook member 1 has the freedom to move along the guide mechanism.
[0043] In another embodiment, the matching part in the guide mechanism can be directly constructed on the hook block 11, that is, the hook block 11 is also constructed with a matching part adapted to the guide part, so that the hook block 11 can be constrained by the matching part and the guide part in the guide mechanism, and the matching part and the guide part in the guide mechanism can guide the movement of the hook block 11, so that the hook block component 1 has the freedom to move along the guide mechanism. In implementation, when the guide part is a guide rail 41, the matching part is a slider 42 adapted to the guide rail 41; when the guide part is a guide shaft 5, the matching part is a guide hole 15 adapted to the guide shaft 5; when the guide part is a guide groove, the matching part is a guide block adapted to the guide groove. In order to prevent the assembled hook block 1 from rotating relative to the guide mechanism, in implementation, the hook block 11 can be constructed with at least two matching parts so as to adapt to at least two guide parts, so that the hook block 11 can be strictly restricted and constrained by the matching of at least two matching parts and at least two guide parts, effectively preventing the hook block 1 from rotating relative to the guide mechanism, and achieving higher guiding accuracy. As an example, in this embodiment, the blocking hook piece 11 can be constructed with two matching parts, the two matching parts are arranged along the height direction respectively, and the two matching parts both use the guide hole 15, such as Figure 1 and Figure 2 shown.
[0044] Since an elastic component 28 is required to be disposed between two adjacent hook members 1 during use, in a further embodiment, the hook piece 11 is further configured with a groove 16, such as Figure 1 and Figure 2 As shown, the groove 16 is connected to the guide hole 15, and the shape of the groove 16 is adapted to the elastic component 28. The groove 16 can be used to accommodate at least part of the elastic component 28, so that when the distance between two adjacent blocking hook components 1 becomes smaller, the elastic component 28 arranged between the two adjacent blocking hook components 1 can be received in the groove 16, so that the distance between the two adjacent blocking hook components 1 can be smaller, and can even contact each other, so as to meet the demand for opening bags of smaller sizes.
[0045] In this embodiment, the hook member 1 can be made of metal material to ensure the strength and rigidity of the hook member 1, so that the hook member 1 is not easily deformed. In practice, the hook member 1 can be made of aluminum plate or steel plate, and the hook member 1 can be constructed as an integrally formed component.
[0046] Example 2
[0047] In order to ensure that fabrics of different thicknesses can be folded smoothly and the folding effect is guaranteed, the main difference between the second embodiment and the first embodiment is that in the hook member 1 provided in the present embodiment, a sinking groove 17 is further constructed on the side of the limiting surface 123 close to the positioning surface 121, such as Figure 3 and Figure 4 As shown, the two ends of the sinking groove 17 respectively pass through the two ends of the blocking hook piece 11. The configuration of the sinking groove 17 can, on the one hand, reduce the area of the limiting surface 123, thereby reducing the friction during the folding process. On the other hand, it can form an accommodating space at a position close to the positioning surface 121, so that fabrics of different thicknesses can be bent smoothly and achieve the desired folding effect.
[0048] During implementation, the shape of the sinking groove 17 can be determined according to actual needs. For example, in this embodiment, Figure 3 and Figure 4 As shown, the square groove adopted by the sinking groove 17 is convenient for processing and forming. Of course, the sinking groove 17 can also adopt other shapes, such as trapezoidal groove, triangular groove, etc., which will not be illustrated one by one here.
[0049] During implementation, the position of the sinking tank 17 can also be determined according to actual needs. As a preferred embodiment, Figure 3 and Figure 4 As shown, one side wall of the sinking groove 17 can be flush with the positioning surface 121, which is easier to process and more conducive to smooth folding.
[0050] Example 3
[0051] This embodiment provides a folding device 2, comprising a carrier 21, two end components 3, a guide mechanism, a power component 22 and at least two of the hook components 1, wherein:
[0052] like Figure 5-Figure 9As shown, the two end parts 3 are arranged relative to each other, and one or two end parts 3 are connected to the guide mechanism and can move along the guide mechanism, so that at least one end part 3 has the freedom of movement, so that the position of the end part 3 can be changed to adjust the distance between the two end parts 3. As mentioned above, the guide mechanism is usually equipped with a guide part and a matching part adapted to the guide part, and the matching part and the guide part constitute a moving pair. The end part 3 can be directly or indirectly connected to the matching part in the guide mechanism, and the end part 3 has the freedom of movement through the matching part and the guide part. In implementation, the guide mechanism can adopt an existing guide rail slider mechanism or a guide shaft slip ring mechanism. When both end parts 3 are configured to be movable, only one set of guide mechanism can be configured, and the two end parts 3 share the guide mechanism. For example, the guide mechanism is configured with two matching parts, and the two end parts 3 are respectively connected to the two matching parts, and the two matching parts are constrained to the same guide part. In addition, when both end parts 3 are configured to be movable, a set of guide mechanisms can also be configured for each of the two end parts 3, so that the guide mechanisms of the end parts 3 are independent of each other, and the same effect can be achieved.
[0053] Each hook member 1 is arranged in a row between two end members 3, as shown in 5 and Figure 8 As shown, each of the hook components 1 is connected to a guide mechanism and can move along the guide mechanism, which not only allows each of the hook components 1 to have the freedom to move, but also allows the folding structures 12 on the sides of each of the hook components 1 to cooperate with each other and play a role in assisting the folding. The guide mechanism can be a guide mechanism of the end component 3, or a guide mechanism configured separately for each of the hook components 1. During implementation, each of the hook components 1 can be movably connected to the guide portion of the guide mechanism through each matching portion. As a preferred embodiment, Figure 5-Figure 9 As shown, the folding device 2 may include two guide mechanisms, which are respectively a first guide mechanism 4 and a second guide mechanism for easy distinction. The first guide mechanism 4 may preferably adopt a guide rail slider mechanism, and the two end members 3 are respectively connected to the slider 42 in the guide rail slider mechanism; the second guide mechanism may include a guide shaft 5, and each stop hook member 1 is respectively sleeved on the guide shaft 5 through a guide hole 15, as shown in FIG. Figure 5-Figure 9 In implementation, the guide shaft 5 can be installed on the carrier 21 or on one of the end members 3. The number of guide shafts 5 can be determined according to actual needs. For example, Figure 5-Figure 9 As shown, two guide shafts 5 are provided, the two guide shafts 5 are respectively fixed to the two end parts 3, the two guide shafts 5 are parallel to each other, and the blocking hook part 1 is simultaneously provided on the two guide shafts 5 through two guide holes 15, which can effectively prevent the blocking hook part 1 from rotating. Correspondingly, guide holes 15 are also provided at the positions corresponding to the guide shafts 5 on the end parts 3, which is conducive to achieving a wider range of length adjustment.
[0054] At the same time, if Figure 8As shown, an elastic component 28 is provided between two adjacent hook components 1, so as to utilize the elastic component 28 to transmit the force between the hook components 1 and the hook components 1. In the case where a guide shaft 5 is provided, the elastic component 28 can be sleeved on the guide shaft 5. In implementation, both sides of the end component 3 can also be provided with folding structures 12, such as Figure 5-Figure 9 As shown, the folding structure 12 on the side of the end component 3 and the folding structure 12 on the side of each hook component 1 can cooperate with each other and play a role of auxiliary folding. In implementation, the structure of the end component 3 can be the same as that of the hook component 1, or it can be different from the structure of the hook component 1. The end component 3 is connected to the adjacent hook component 1 in a transmission manner. In implementation, the end component 3 can be directly connected to the hook component 1 located at the end, or an elastic component 28 can be configured between the end component 3 and the hook component 1, and the elastic component 28 is used to transmit the force. In implementation, the elastic component 28 can preferably adopt a compression spring (such as a cylindrical helical compression spring), a conical helical spring, a spiral helical spring, etc. Of course, in implementation, the end component 3 may not be configured with any folding structure 12, and the end component 3 may only play a transmission role, and only use the hook component 1 to assist in folding. For example, the lower end of the end component 3 may be higher than the lower end of the hook component 1, such as Fig.10 As shown, so as not to interfere with the folding action of the hook component 1.
[0055] The power component 22 is arranged on the carrier 21, and the power component 22 is connected to the movable end component 3 by transmission, and is used to adjust the position of the end component 3. When the two end components 3 are close to each other, the elastic component 28 is compressed, and the force is transmitted through the elastic component 28, so that the two adjacent hook components 1 can be synchronously driven to be close to each other, and the elastic potential energy of the elastic component 28 gradually increases; and when the end components 3 are away from each other, the elastic potential energy of the elastic component 28 is released differently, so that the two adjacent hook components 1 can be synchronously driven to be away from each other, and the elastic potential energy of the elastic component 28 gradually decreases. In actual use, at least the spacing between the hook components 1 can be automatically adjusted by the power component 22, so as to effectively change the length of the folding device 2, and synchronously change the length range that the folding structure 12 on the side of the folding device 2 can cover, which can not only meet the folding requirements of bags of different sizes, but also the hook components 1 are evenly distributed, which can ensure the folding effect.
[0056] During implementation, the folding device 2 also includes a linear drive module, and the power component 22 is connected to the linear drive module, and the linear drive module is connected to the end component 3, so that the power component 22 can drive the end component 3 to move linearly through the linear drive module, so as to use the power component 22 to adjust the position of the end component 3, so as to achieve the purpose of adjusting the length of the folding device 2 according to actual needs. During implementation, the linear drive module can adopt an existing linear drive module, for example, a linear module driven by a screw rod 23 or a linear module driven by a synchronous belt or a linear module driven by a gear rack, etc. In a preferred embodiment, a set of linear drive modules and a power component 22 can be respectively configured for the two end components 3, and the two power components 22 are respectively used to control the synchronous reverse movements of the two end components 3, which is conducive to simplifying the control. In another preferred embodiment, a set of linear drive modules and a power component 22 can be configured for the two end components 3. As an example, Figure 5 , Figure 7 and Figure 8 As shown, the linear drive module at this time may include a screw rod 23 and two nuts 24 adapted to the screw rod 23. The screw rod 23 is constructed with two sections of external threads with opposite rotation directions. The two nuts 24 are respectively threadedly connected to the two sections of external threads. The power component 22 is transmission-connected to the screw rod 23. The two nuts 24 are respectively connected to the two end components 3, so that the power component 22 can be used to drive the two end components 3 to move synchronously in opposite directions, and can also drive the middle hook component 1 to move synchronously, thereby achieving the purpose of effectively changing the length of the lower end of the folding device 2.
[0057] In implementation, the power component 22 can be connected to the linear drive module by an existing transmission mechanism, and the transmission mechanism can be a combination of one or more of a coupling, a belt transmission mechanism, and a gear transmission mechanism, for example. Figure 5 , Figure 7 and Figure 8 As shown, in this example, the transmission mechanism adopts a belt transmission mechanism, which includes a driving wheel 25, a driven wheel 26, and a transmission belt 27 tensioned on the driving wheel 25 and the driven wheel 26. The driving wheel 25 can be set on the output shaft of the power component 22, and the driven wheel 26 can be set on the screw rod 23 of the linear drive module, such as Figure 8 shown.
[0058] Example 4
[0059] This embodiment provides a bag opening machine, including a frame and the folding device 2 in the above embodiment, and the supporting frame 21 of the folding device 2 can be connected to the frame so that the folding device 2 can be used to meet the folding requirements of bag openings of different sizes.
[0060] In actual use, the length of the lower end of the folding device 2 can be adjusted according to the length of the bag opening, so that the total length of the folding portion composed of the folding structures 12 on the side of the lower end of the folding device 2 can adapt to the required length of the bag opening, so as to meet the folding requirements of bag openings of different sizes. For example, the minimum length of the folding portion composed of the folding structures 12 on the side of the lower end of the folding device 2 can be 10mm, and the maximum length of the folding portion composed of the folding structures 12 on the side of the lower end of the folding device 2 can be 200mm, so that the length of the folding portion composed of the folding structures 12 on the side of the lower end of the folding device 2 can be adjusted within the range of 10 to 200mm. When the length of the bag opening is 10mm, the length of the lower end of the folding device 2 can be adjusted by the power component 22, so that the length of the lower end of the folding device 2 is adapted thereto; when the length of the bag opening is 150mm, the length of the lower end of the folding device 2 can also be adjusted by the power component 22, so that the length of the lower end of the folding device 2 is adapted thereto, thereby meeting the folding requirements of bag openings of different sizes.
[0061] During implementation, the existing folding process can be used to perform the folding operation on one side of the bag opening, which will not be described in detail here.
[0062] The above description is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention.
Claims
1. A hook member for a folding device, characterized in that: The invention comprises a hook-blocking piece of a sheet structure, and hook-shaped folding structures are respectively constructed on both sides of the hook-blocking piece, and the folding structures are used for auxiliary folding.
2. The hook member for the folding device according to claim 1, characterized in that: The folding structure comprises a positioning surface and a hook portion protruding from the positioning surface, the hook portion is configured with a limiting surface for limiting the folding piece, and the positioning surface and the limiting surface form a hook shape.
3. The hook member for the folding device according to claim 2, characterized in that: The positioning surface is a vertical plane, the limiting surface is a plane, and the limiting surface is perpendicular to the positioning surface; And / or, the folded edge structures on both sides of the retaining hook piece are arranged symmetrically.
4. The hook member for the folding device according to claim 2, characterized in that: A sinking groove is also constructed on one side of the limit surface close to the positioning surface, and two ends of the sinking groove respectively penetrate through two ends of the blocking hook piece.
5. The hook member for the folding device according to claim 4, characterized in that: The sinking trough adopts square trough; and / or, a side wall of the sinking groove is flush with the positioning surface; And / or, the folding structure is constructed on the side surface of the lower end of the blocking hook piece, and the side surface of the blocking hook piece is also constructed with an inclined surface, so that the width of the blocking hook piece gradually decreases along the direction approaching the folding structure.
6. The hook member for the folding device according to claim 2, characterized in that: The outer side surface of the hook portion is also configured with a guide surface, which extends to the lower end of the hook-blocking piece. From the upper edge of the guide surface to the lower end of the hook-blocking piece, the width of the hook-blocking piece gradually decreases.
7. The hook member for the folding device according to claim 1, characterized in that: The blocking hook piece is also configured with a matching portion adapted to the guide portion.
8. The hook member for the folding device according to claim 7, characterized in that: The blocking hook piece is configured with at least two matching portions; And / or, the matching portion is a guide hole.
9. A folding device, comprising a carrier, two end components, a guide mechanism, a power component and at least two hook components according to any one of claims 1 to 8, wherein: The two end members are arranged opposite to each other, and at least one end member is connected to the guide mechanism and can move along the guide mechanism; Each of the blocking hook components is arranged in a row between the two end components, and each of the blocking hook components is connected to a guide mechanism and can move along the guide mechanism; An elastic component is provided between at least two adjacent hook components. The power component is arranged on the supporting frame, and the power component is transmission-connected with the movable end component for adjusting the position of the end component. When the two end components are close to each other, the blocking hook components are synchronously driven to be close to each other, and the elastic potential energy of the elastic component is increased. When the end components are away from each other, the blocking hook components are synchronously driven to be away from each other, and the elastic potential energy of the elastic component is reduced.
10. A bag opening machine, comprising a frame and the folding device according to claim 9, wherein the folding device is installed on the frame.