A bag-opening device and a bag-opening method

Abstract

This invention addresses the problems of low fabric fixing effect and overall efficiency in existing bag-opening machines. It provides a bag-opening device and method. By incorporating a positioning module into the bag-opening device, the placed fabric is positioned, facilitating its smooth unfolding and effectively preventing displacement due to external forces or other components. The bag-opening method of this invention enables automated bag opening, improving the quality of the sewn pockets while ensuring high efficiency.

Description

Technical Field

[0001] This invention relates to the field of fabric processing equipment, and in particular to a bag opening device and a bag opening method. Background Technology

[0002] Clothing typically features two pockets, and some unique garments may have even more. To enhance the structural strength of the fabric at the pocket opening, folded fabric flaps are often incorporated. Traditional hand-sewing techniques are time-consuming and labor-intensive for pocket areas, leading to the development of automated pocket-opening machines, such as those described in patent application CN111575926A. However, existing pocket-opening machines lack structures for assisting in fabric positioning, making it difficult to lay the fabric flat, affecting overall efficiency, and easily causing wrinkles that affect the pocket's shape. Therefore, a pocket-opening device and method that can help flatten the fabric is needed. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a bag-opening device and a bag-opening method.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] A bag-opening device includes a support frame; it also includes a positioning module, a circulating material feeding module, a bag-opening module, a translation module, and a sewing module; wherein the upper surface of the frame is sequentially provided with a first working area, a second working area, and a third working area in a predetermined direction; the circulating material feeding module, the bag-opening module, and the translation module are arranged inside the frame, and the positioning module and the sewing module are arranged above the frame; the positioning module is located in the first working area above the frame and is used to press down the fabric being processed; the sewing module is located in the third working area and is used for sewing. The module is used to sew the bag opening of the fabric; the circulating material feeding module is used to transfer the fabric to the bag opening module, and the circulating material feeding module reciprocates in the first work area and the second work area; the bag opening module is used to form the bag opening on the fabric, and the bag opening module moves between the first work area, the second work area and the third work area; the translation module is set below the bag opening module, and the translation module moves between the first work area and the second work area. The translation module is used to support the fabric that has been initially sewn on the bag opening module below, and cooperates with the bag opening module to transfer the fabric back to the first work area.

[0006] Furthermore, the bag opening module includes a laser component, a pressing component, and a folding component; wherein the pressing component is used to press down the fabric, and the pressing component is movably mounted on the frame, and the movement trajectory of the pressing component passes through the first work station area, the second work station area, and the third work station area; the laser component is fixedly mounted on the frame, and the laser component is located on the movement trajectory of the pressing component, and the laser component is used to cut the fabric to form a bag opening; the folding component is movably mounted above the pressing component, and the folding component is used to open up the cut bag opening area on the fabric.

[0007] Furthermore, the pressing assembly includes a processing table for supporting and pressing the fabric, and a pressing transport structure for controlling the movement of the processing table; the pressing transport structure includes a first pressing transport structure, a second pressing transport structure, and a third pressing transport structure; wherein the second pressing transport structure is fixedly mounted on the first pressing slider of the first pressing transport structure; the first pressing transport structure is fixedly mounted inside the frame; the third pressing transport structure is fixedly mounted on the second pressing slider of the second pressing transport structure; the movement direction of the first pressing transport structure is the left-right direction in the horizontal plane, and the movement directions of the second and third pressing transport structures are both the front-back direction in the horizontal plane; the left-right and front-back directions are spaced at a set angle; the second pressing slider of the second pressing transport structure is provided with an upward-facing first support member, and the upper end of the first support member is fixedly mounted with the third pressing transport structure; the processing table is fixedly mounted on the upper end of the first support member, and the processing table is used to support and flatten the fabric; the folding assembly is fixedly mounted on the third pressing slider of the third pressing transport structure, and the folding assembly is used to open the fabric after it has been opened; the folding assembly is located above the processing table.

[0008] Furthermore, a second support member is provided between the processing table and the support block. The second support member is located in the horizontal direction and is fixedly installed on the upper part of the first support member. A third pressing and conveying structure is fixedly installed on the second support member. A processing table is also fixedly installed on the end of the second support member away from the first support member. The processing table is located on the side of the second support member close to the first work station area, the second work station area and the third work station area on the frame. The processing table is located above the frame.

[0009] Furthermore, the processing table includes a processing base plate for supporting the fabric, a first pressing component, a second pressing component, and a lateral clamping assembly; the processing base plate is slidably disposed at the end of the second supporting component, and the sliding direction of the processing base plate is in the vertical direction; a processing plate adjustment slide rail is provided between the processing base plate and the second supporting component; the first pressing component includes a multi-stage sliding structure and a first pressing plate; the multi-stage sliding structure is disposed between the processing base plate and the first pressing plate, and the multi-stage sliding structure is located above the processing base plate; the multi-stage sliding structure includes at least one sliding structure in the horizontal direction and one sliding structure in the vertical direction; the second pressing component includes a second pressing cylinder and a second pressing plate, the second pressing cylinder is directly disposed above the processing base plate, the movable rod of the second pressing cylinder faces downward, and the end of the movable rod of the second pressing cylinder is fixedly disposed with the second pressing plate; the processing base plate is provided with a sewing hole for sewing the opening of the fabric bag, and lateral clamping assemblies are respectively provided on both sides of the sewing hole.

[0010] Furthermore, the multi-stage sliding structure includes a first-stage sliding structure and a third-stage sliding structure that slide in the vertical direction, and a second-stage sliding structure that slides in the horizontal direction; the first-stage sliding structure is slidably disposed on the processing base plate; the second-stage sliding structure is disposed between the first-stage sliding structure and the third-stage sliding structure; and the moving part of the third-stage sliding structure is fixedly provided with a first pressure plate.

[0011] Furthermore, the processing table also includes a flat plate, which contacts the fabric below the processing table; the processing base plate is provided with a flattening groove corresponding to the flat plate, and the flat plate can slide in the flattening groove along a set direction; a flattening cylinder is also provided between the flat plate and the processing base plate, and the orientation of the flattening cylinder is consistent with the sliding direction of the flat plate.

[0012] Furthermore, the lateral clamping assembly includes a lateral clamping cylinder and a lateral clamping plate; the lateral clamping plate is slidably disposed in a clamping groove on the processing base plate; the lateral clamping cylinder is fixedly disposed above the processing base plate, and the movable end of the lateral clamping cylinder is also fixedly connected to the lateral clamping plate; the lateral clamping plates are respectively located on both sides of the sewing hole.

[0013] Furthermore, the folding assembly includes a folding base, a first spreading structure, and a second spreading structure; wherein the folding base is slidably mounted on the third pressing slider of the third pressing and transporting structure via a folding sliding structure, and a folding adjustment motor is also provided between the folding base and the third pressing slider, and the folding sliding structure is located in the vertical direction; the first spreading structure and the second spreading structure are respectively movably mounted on the folding base, the first spreading structure is used to spread the fabric in the front-back direction in the horizontal plane, and the second spreading structure is used to spread the fabric in the left-right direction in the horizontal plane.

[0014] Furthermore, the positioning module includes a lateral positioning structure and a vertical positioning structure; the lateral positioning structure is disposed on the side of the first work station area on the frame and is used to press down the side edge of the flat fabric; the vertical positioning structure is disposed directly above the first work station area and is used to press down the flat fabric.

[0015] A bag-opening method, based on the aforementioned bag-opening equipment, includes the following steps:

[0016] Step 1: In the second work station area, the operator places at least one layer of fabric on the processing base of the processing table, and the fabric is pressed down by the first pressing component and / or the second pressing component to facilitate the operator to spread the fabric.

[0017] Step 2: The pressing assembly controls the processing table to press down on the fabric above the processing base and move it to the third work station area, where the laser assembly makes an opening; after the pressing assembly completes the opening, it returns to the second work station area to wait.

[0018] Step 3: The operator places the fabric onto the feeding plate of the circulating feeding module, which is then transferred to the first work station area, and aligns the edge of the fabric with a specific position on the feeding plate;

[0019] Step 4: Press down the positioning module to tighten the upper edge and sides of the fabric;

[0020] Step 5: The vertical positioning structure of the positioning module releases the fabric, and the pressing component controls the processing table to move to the first work station area. At the same time, the folding component folds the edge of the bag opening. After the folding component completes the folding, it leaves the area above the processing table.

[0021] Step 6: After the processing table moves to the first work station area, it presses down on the fabric on the picking plate; then the side positioning structure in the positioning module releases the fabric, and the processing table presses down on the picking plate and the fabric to move to the third work station area; then the cyclic picking module sends another picking plate to the first work station area;

[0022] Step 7: The processing table moves to the third work station area, where the sewing module sews the fabric above and below the base plate for the first time. After the first sewing is completed, the processing table returns to the second work station area.

[0023] Step 8: The processing table and the translation module work together to rise, separating the material picker plate from the fabric and waiting; the circulating material picker module picks up the material picker plate and returns to the rear of the first workstation area to wait;

[0024] Step 9: The operator places the bottom layer of fabric onto the newly delivered material pick-up plate from Step 6, and the positioning module presses it down.

[0025] Step 10: The processing table and the translation module work together to send the fabric that has been sewn for the first time back to the area above the first work station; then the translation module returns to the area of ​​the second work station; then the processing table controls the processing base plate to descend and press on the material picking plate and the fabric, and the positioning structure in the positioning module releases the fabric.

[0026] Step 11: The processing table controls the material picking plate, the fabric on the material picking plate, and the fabric that has completed the first sewing to move to the third work station area. At the same time as the movement, the unfolding plate in the processing table moves to flatten the fabric; then the circulating material picking module places the material picking plate in the first work station area.

[0027] Step 12: After the processing table transports the fabric to the third work station area, the sewing module completes the second sewing of the fabric;

[0028] Step 13: After completing the second sewing, the processing table returns to the second workstation area and controls the processing base plate to rise; the circulating material picking module takes away the material picking plate and returns to the rear of the first workstation area to wait, ending the step.

[0029] The beneficial effects of this invention are as follows:

[0030] By setting a positioning module, the placed fabric is positioned, which on the one hand makes it easier to spread the fabric out and flat, and on the other hand, can effectively prevent the fixed fabric from shifting due to external factors or movement of other parts.

[0031] By setting the bag opening module to include a flat plate, the fabric after one sewing is flattened, and the wrinkles caused by the relative movement of the translation module and the processing table are smoothed out.

[0032] By setting the first, second, and third pressing and conveying structures to all use the cooperation of lead screws and motors, the movement of each structure can be precisely controlled, thereby achieving accurate control of the movement distance and reducing the noise generated during movement.

[0033] By adopting an automatic bag-opening method, the bag-opening process of the fabric is completed, which improves the quality of the sewn pockets while ensuring high efficiency. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of Example 1;

[0035] Figure 2 This is a schematic diagram of the overall structure from another angle of Example 1;

[0036] Figure 3 This is a schematic diagram of the rack in Example 1;

[0037] Figure 4 This is a schematic diagram of the frame, positioning module, and sewing module of Example 1;

[0038] Figure 5 This is a schematic diagram of the bag opening module in Example 1;

[0039] Figure 6 This is a schematic diagram of the bag opening module without the folding component in Example 1;

[0040] Figure 7 This is a schematic diagram of the processing table in Example 1;

[0041] Figure 8 This is an exploded view of the processing table and material handling plate in Example 1;

[0042] Figure 9 This is a schematic diagram of the pressing and transporting structure in Example 1;

[0043] Figure 10 This is a schematic diagram of the folding component in Example 1;

[0044] Figure 11 This is a schematic diagram of another angle folding component in Embodiment 1;

[0045] Figure 12 This is a schematic diagram of the translation module in Example 1;

[0046] Figure 13 This is a schematic diagram of another angle translation module in Embodiment 1;

[0047] Figure 14 This is a schematic diagram of one possible location of the cyclic material handling module in Example 1;

[0048] Figure 15 This is a schematic diagram showing another location of the cyclic material handling module in Example 1;

[0049] Figure 16 This is a schematic diagram of the material handling plate and material handling connection structure in Example 1;

[0050] Figure 17 This is a schematic diagram of the positioning module in Example 1;

[0051] Figure 18 This is a schematic diagram of the vertical positioning structure in Example 1;

[0052] Figure 19 This is a schematic diagram of the lateral positioning structure in Example 1.

[0053] Figure Identification: Frame 1, First Working Area 11, Second Working Area 12, Third Working Area 13, Positioning Module 2, Side Positioning Structure 21, Vertical Positioning Structure 22, Baffle Plate 221, Positioning Frame 222, First Positioning Structure 223, Positioning Plate 224, Second Positioning Structure 225, Marking Structure 23, Circulating Material Picking Module 3, Picking Plate 31, Pin Connection Structure 311, Picking Processing Hole 312, Picking Connection Structure 32, First Picking Structure 33, Second Picking Structure 34, Bag Opening Module 4, Pressing Assembly 41, Processing Table 411, Processing Base Plate 4111, Sewing Hole 4111a, First Pressing Component 4112, First-Stage Sliding Structure 4112a, Second-Stage Sliding Structure 4112b, Third-Stage Sliding Structure 4112c, First Pressing Plate 4112d, Second Pressing Component 4113, Second Pressing Material cylinder 4113a, second pressure plate 4113b, side clamping assembly 4114, side clamping cylinder 4114a, side clamping plate 4114b, processing plate adjusting slide rail 4115, unfolding plate 4116, unfolding smooth groove 4117, flattening cylinder 4118, cover plate 4119, pressure transport structure 412, first pressure transport structure 4121, second pressure transport structure 4122, third pressure transport structure 4123, first support member 4124, second support member 4125, folding assembly 42, folding base 421, first opening structure 4211, second opening structure 4212, folding sliding structure 4213, folding adjusting motor 4214, downward pressure support structure 4215, translation module 5, translation support plate 51, first translation structure 52, second translation structure 53, sewing module 6. Detailed Implementation

[0054] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0055] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the figures only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex. Example

[0056] like Figures 1-4As shown, a bag-opening device includes a support frame 1; it also includes a positioning module 2, a circulating material handling module 3, a bag-opening module 4, a translation module 5, and a sewing module 6. The upper surface of the frame 1 is sequentially arranged with a first workstation area 11, a second workstation area 12, and a third workstation area 13 in a set direction. In this example, the first workstation area 11 is used to place fabric and other components, the second workstation area 12 serves as a transfer area, and the third workstation area 13 serves as a laser opening area and a sewing area. The circulating material handling module 3, the bag-opening module 4, and the translation module 5 are arranged inside the frame 1. It should be noted that the parts controlling the movement of the circulating material handling module 3, the bag-opening module 4, and the translation module 5 are located inside the frame 1, while the other parts are still located in the workstation areas above the frame 1. The positioning module 2 and the sewing module 6 are arranged above the frame 1. The positioning module 2 is located on the frame 1. In the first workstation area 11 above, the positioning module 2 is used to press down the fabric being processed, making it easier for personnel to lay the pressed fabric flat; the sewing module 6 is located in the third workstation area 13, and is used to sew the bag opening of the fabric. The sewing module 6 uses an existing sewing machine; the circulating material picking module 3 is used to transfer the fabric to the bag opening module 4, and the circulating material picking module 3 reciprocates between the first workstation area 11 and the second workstation area 12; the bag opening module 4 is used to form the bag opening on the fabric, and moves between the first workstation area 11, the second workstation area 12 and the third workstation area 13; the translation module 5 is located below the bag opening module 4, and moves between the first workstation area 11 and the second workstation area 12. The translation module 5 is used to support the fabric that has been initially sewn on the bag opening module 4 below, and works with the bag opening module 4 to transfer the fabric back to the first workstation area 11. Traditionally, a bag opening typically consists of three or more layers of fabric. The top layer is the outer layer of the garment, while the other two layers are used to make or connect the pocket. It's important to note that the top layer needs to be open, the middle layer is sewn to the bottom edge of the opening, and the bottom layer is sewn directly to the top edge to close the opening. After the top two layers are sewn together, the opening module 4 moves back to the first workstation area 11, pressing down the bottom layer, and then moves to the third workstation area 13 for sewing. At this point, the opening module 4 and the translation module 5 work together to lift the two sewn layers onto the bottom layer. Then, the translation module 5 is quickly moved away, while the opening module 4 presses down, causing the two sewn layers to fall onto the bottom layer. The bottom layer is well-positioned thanks to the positioning module 2, effectively preventing displacement.

[0057] like Figures 5-11As shown, the bag opening module 4 includes a laser component, a pressing component 41, and a folding component 42. The pressing component 41 is used to press down the fabric and is movably mounted on the frame 1. The movement trajectory of the pressing component 41 passes through the first work station area 11, the second work station area 12, and the third work station area 13. The laser component is fixedly mounted on the frame 1 and is located on the movement trajectory of the pressing component 41. The laser component is used to cut the fabric to form a bag opening. It should be noted that in the attached drawings of this example, the laser component is not shown. The laser head of the laser component is fixedly mounted on the sewing module 6 in the third work station area 13. The pressing component 41 pushes the fabric to the third work station area 13 to cut the opening. The folding component 42 is movably mounted above the pressing component 41. The folding component 42 is used to open the cut bag opening area on the fabric and fold the cut bag opening edge.

[0058] The pressing assembly 41 includes a processing table 411 for supporting and pressing the fabric and a pressing transport structure 412 for controlling the movement of the processing table 411; the pressing transport structure 412 includes a first pressing transport structure 4121, a second pressing transport structure 4122, and a third pressing transport structure 4123; wherein the second pressing transport structure 4122 is fixedly mounted on the first pressing slider of the first pressing transport structure 4121; the first pressing transport structure 4121 is fixedly mounted inside the frame 1; the third pressing transport structure 4123 is fixedly mounted on the second pressing slider of the second pressing transport structure 4122; the movement direction of the first pressing transport structure 4121 is the left-right direction in the horizontal plane, the third pressing transport structure 4123 is the second pressing slider of the second pressing transport structure 4122, and the third pressing transport structure 4123 is the third pressing transport structure 4123. The movement directions of the second pressing and transporting structure 4122 and the third pressing and transporting structure 4123 are both in the front-back direction in the horizontal plane; the left-right direction and the front-back direction are set at intervals; the second pressing slider of the second pressing and transporting structure 4122 is provided with an upward-facing first support member 4124, and the third pressing and transporting structure 4123 is fixedly provided at the upper end of the first support member 4124; the processing table 411 is fixedly provided at the upper end of the first support member 4124, and the processing table 411 is used to support and flatten the fabric; the folding component 42 is fixedly provided on the third pressing slider of the third pressing and transporting structure 4123, and the folding component 42 is used to open the fabric after the opening; the folding component 42 is located above the processing table 411. In this example, the first pressing and transporting structure 4121 mainly moves in the left-right direction, and its range of motion includes the first workstation area 11, the second workstation area 12, and the third workstation area 13 on the frame 1. It is used to control the movement of the processing table 411 and the folding component 42 between these workstation areas. The second pressing and transporting structure 4122 is used to control the forward and backward movement of both the processing table 411 and the folding component 42, allowing them to move closer to or further away from the workstation areas. The third pressing and transporting structure 4123 is used to control the forward and backward movement of the folding component 42, allowing it to move above or away from the processing table 411, enabling the processing table 411 to flexibly cooperate with the sewing module 6 and the laser component. In this example, the first pressing and transporting structure 4121, the second pressing and transporting structure 4122, and the third pressing and transporting structure 4123 all use a combination of lead screws and motors to precisely control their respective movements, achieving accurate control of the movement distance and reducing noise generated during movement.

[0059] A second support member 4125 is also provided between the processing table 411 and the support block. The second support member 4125 is located in the horizontal direction and is fixedly installed on the upper part of the first support member 4124. A third pressing and conveying structure 4123 is fixedly installed on the second support member 4125. A processing table 411 is also fixedly installed on the end of the second support member 4125 away from the first support member 4124. The processing table 411 is located on the side of the second support member 4125 close to the first work station area 11, the second work station area 12, and the third work station area 13 on the frame 1. The second support member 4125 is used to provide support for the third pressing and conveying structure 4123 on one hand, and on the other hand, it can also make the processing table 411 installed on it closer to the work station area. In this example, the processing table 411 is located above the frame 1 and moves between the various work station areas on the frame 1.

[0060] The processing table 411 includes a processing base plate 4111 for supporting the fabric, a first pressing member 4112, a second pressing member 4113, and a lateral clamping assembly 4114. The processing base plate 4111 is slidably disposed at the end of the second support member 4125. A processing plate adjusting slide rail 4115 is provided between the processing base plate 4111 and the second support member 4125. The sliding of the processing base plate 4111 is controlled by a cylinder, and the sliding direction of the processing base plate 4111 is in the vertical direction. The first pressing member 4112 includes a multi-stage sliding structure and a first pressing plate 4112d. The multi-stage sliding structure is disposed between the processing base plate 4111 and the first pressing plate 4112d. The moving structure is located above the processing base plate 4111; the multi-stage sliding structure includes at least one sliding structure in the horizontal direction and one sliding structure in the vertical direction; the second pressing component 4113 includes a second pressing cylinder 4113a and a second pressing plate 4113b, the second pressing cylinder 4113a is directly disposed above the processing base plate 4111, the movable rod of the second pressing cylinder 4113a faces downward, and the end of the movable rod of the second pressing cylinder 4113a is fixedly disposed with the second pressing plate 4113b; the processing base plate 4111 is provided with a sewing hole 4111a for sewing the opening of the fabric bag, and lateral clamping components 4114 are respectively disposed on both sides of the sewing hole 4111a. The second pressure plate 4113b is used to press down the first layer of fabric on the processing base plate 4111, while the first pressure plate 4112d is used to press down all the fabric on the processing base plate 4111. This effectively secures the multiple layers of fabric on the processing base plate 4111. It should be noted that the first pressure plate 4112d has a larger overall area and is positioned corresponding to the sewing holes 4111a on the processing base plate 4111. Corresponding through holes are also provided on the first pressure plate 4112d. The second pressure plate 4113b is used to press down the edge area of ​​the fabric, providing a certain degree of pressure and preventing it from shifting. In this example, two second pressure plates 4113 are provided. The two second pressure plates 4113 are respectively located on the left and right sides of the first pressure plate 4112 on the processing base plate.

[0061] The multi-stage sliding structure includes a first-stage sliding structure 4112a and a third-stage sliding structure 4112c that slide vertically, and a second-stage sliding structure 4112b that slides horizontally. The first-stage sliding structure 4112a is slidably mounted on the processing base plate 4111. The second-stage sliding structure 4112b is positioned between the first-stage sliding structure 4112a and the third-stage sliding structure 4112c. The moving part of the third-stage sliding structure 4112c is fixedly equipped with a first pressure plate 4112d. It should be noted that the first-stage sliding structure 4112a, the second-stage sliding structure 4112b, and the third-stage sliding structure 4112c are all controlled by cylinders to achieve sliding. By setting the first-stage sliding structure 4112a and the third-stage sliding structure 4112c in the vertical direction, a larger movement distance is achieved in the vertical direction, and the height difference between the first pressure plate 4112d and the processing base plate 4111 is controlled to be larger, which facilitates the loading and unloading of fabric.

[0062] The processing table 411 also includes a flat plate 4116, which contacts the fabric below the processing table 411. The processing base plate 4111 is provided with a smoothing groove 4117 corresponding to the flat plate 4116, and the flat plate 4116 can slide in the smoothing groove 4117 along a set direction. A flattening cylinder 4118 is also provided between the flat plate 4116 and the processing base plate 4111, and the orientation of the flattening cylinder 4118 is consistent with the sliding direction of the flat plate 4116. Because the fabric above the processing base plate 4111 can be fixed to a certain extent by the first pressing member 4112 and the second pressing member 4113, but the fabric below the processing base plate 4111 does not have a clamping structure, especially when the bag opening module 4 and the translation module 5 move together from the second work station area 12 back to the first work station area 11, due to the speed difference between the two, and the translation module 5 being pulled away, wrinkles inevitably appear in the fabric below the processing base plate 4111. At this time, the spreading plate 4116 needs to move to smooth out the wrinkles formed by the fabric. In this example, the spreading groove 4117 is set on the upper surface of the processing base plate 4111. The overall shape of the spreading groove 4117 is "U". The middle section of the spreading groove 4117 is set as a hollow, which facilitates the contact between the spreading plate 4116 in the spreading groove 4117 and the fabric below the processing base plate 4111, so as to push the fabric.

[0063] The folding assembly 42 includes a folding base 421, a first spreading structure 4211, and a second spreading structure 4212. The folding base 421 is slidably mounted on the third pressing slider of the third pressing and transporting structure 4123 via a folding sliding structure 4213. A folding adjustment motor 4214 is also provided between the folding base 421 and the third pressing slider. The folding sliding structure 4213 is located in the vertical direction. The folding adjustment motor 4214 is used to cooperate with the toothed structure provided on the folding base 421 to adjust the rise or fall of the entire folding base 421. The first spreading structure 4211 and the second spreading structure 4212 are respectively movably mounted on the folding base 421. The first spreading structure 4211 is used to spread the fabric in the front-back direction in the horizontal plane, and the second spreading structure 4212 is used to spread the fabric in the left-right direction in the horizontal plane. It should be noted that a vertically moving downward support structure 4215 is also provided between the second opening structure 4212 located in the left and right direction and the folding base 421. When the downward support structure 4215 moves, the second opening structure 4212 can be controlled to move downward or upward independently. The purpose is to enable the first opening structure 4211 and the second opening structure 4212 to move independently, so as to achieve a better opening effect on the bag opening of the fabric.

[0064] The lateral clamping assembly 4114 includes a lateral clamping cylinder 4114a and a lateral clamping plate 4114b. The lateral clamping plate 4114b is slidably disposed in a clamping groove on the processing base plate 4111. The lateral clamping cylinder 4114a is fixedly disposed above the processing base plate 4111, and the movable end of the lateral clamping cylinder 4114a is also fixedly connected to the lateral clamping plate 4114b. The lateral clamping plates 4114b are located on the front and rear sides of the sewing hole 4111a, respectively. To prevent thread ends from falling into the clamping groove, a cover plate 4119 is also provided, which covers the processing base plate 4111. After the folding assembly 42 bends the fabric at the bag opening downwards, the lateral clamping assembly 4114 clamps and fixes the bent bag opening edge.

[0065] like Figure 4 , Figures 17-19As shown, the positioning module 2 includes a side positioning structure 21 and a vertical positioning structure 22; the side positioning structure 21 is disposed on the side of the first work station area 11 on the frame 1 and is used to press down the side edge of the flat fabric; the vertical positioning structure 22 is disposed directly above the first work station area 11 and is used to press down the flat fabric. The vertical positioning structure 22 includes two baffle plates 221, which are used to press down the fabric or other components located at different positions. It also includes a positioning frame 222, a first positioning structure 223, a positioning plate 224, and a second positioning structure 225. The positioning structure 223 is fixedly mounted on the frame 1. The first positioning structure 223 is fixedly mounted on the upper end of the positioning frame 222 and is used to achieve movement in a predetermined direction in the horizontal plane. The positioning plate 224 is fixedly mounted on the movable end of the first positioning structure 223. The second positioning structure 225 is fixedly mounted on the positioning plate 224 and is used to achieve movement in the vertical direction. Two second positioning structures 225 are respectively provided on both sides of the positioning plate 224, and two baffle plates 221 are fixedly mounted on the movable ends of the two second positioning structures 225. The first positioning structure 223 and the second positioning structure 225 are provided to better control the movement of the baffle plates 221 and avoid interference with the movement of other modules. The side positioning structure 21 is directly driven by the cylinder to press down the side plate at the top of the cylinder, pressing down the side edge of the fabric. It should be noted that the side positioning structure 21 is located on the side of the first work station area 11 away from the second work station area 12.

[0066] The positioning module 2 also includes a marking structure 23, which is used to inject an adjustable spacing green grid pattern to help people align and place the fabric, thus achieving an auxiliary effect.

[0067] like Figures 14-16As shown, the circulating material handling module 3 includes a material handling plate 31, a material handling connecting structure 32, a first material handling structure 33, and a second material handling structure 34. The first material handling structure 33 is fixedly mounted on the frame 1, and the second material handling structure 34 is fixedly mounted on the first material handling structure 33. The first material handling structure 33 controls the movement of the second material handling structure 34 between the first workstation area 11 and the second workstation area 12. The second material handling structure 34 is connected to the material handling plate 31 via the material handling connecting structure, controlling the material handling plate 31 to move closer to or away from the workstation area. The material handling connecting structure 32 includes at least one finger cylinder, which is used to clamp the material handling plate 31. Through the cooperation between the first material handling structure 33 and the second material handling structure 34, the cyclic handling of the material handling plate 31 is achieved. The material-taking plate 31 is provided with a material-taking processing hole 312 for sewing fabric. The shape of the material-taking processing hole 312 corresponds to the sewing hole 4111a on the processing base. The edge of the material-taking processing hole 312 is provided with a frosted surface to enhance the friction between the material and the fabric and prevent the fabric from slipping. In order to ensure that the material-taking plate 31 can move together with the pressing processing table 411, a pin connection structure 311 is also provided between the processing table 411 and the material-taking plate 31. When the two are connected vertically, the material-taking plate 31 can slide laterally together with the processing table 411.

[0068] like Figure 12 , Figure 13 As shown, the translation module 5 includes a vertically movable translation support plate 51, a first translation structure 52, and a horizontally movable second translation structure 53 between the first workstation area 11 and the second workstation area 12. The second translation structure 53 is mounted on the first translation structure 52, which is mounted on the frame 1. The translation support plate 51 is mounted on the second translation structure 53. In this example, the translation support plate 51 is initially embedded in the upper surface of the frame 1 and located within the second workstation area 12. When action is required, the first translation structure 52 controls the translation support plate 51 to move upward, and then the second translation structure 53 controls the translation support plate 51 to move towards the first workstation area 11, assisting the bag opening module 4 in sending the fabric back to the first workstation area 11. It should be noted that buffers are also provided at the extreme positions at both ends of the second translation structure to help the second translation structure stop smoothly.

[0069] A bag-opening method, based on the aforementioned bag-opening equipment, includes the following steps:

[0070] Step 1: In the second work station area 12, the operator places at least one layer of fabric on the processing base of the processing table 411, and the fabric is pressed by the first pressing component 4112 and / or the second pressing component 4113.

[0071] Step 2: The pressing component 41 controls the processing table 411 to press the fabric above the processing base and move it to the third work station area 13, where the laser component makes an opening; after the pressing component 41 completes the opening, it returns to the second work station area 12 to wait.

[0072] Step 3: The operator places the fabric on the feeding plate 31 of the circulating feeding module 3 and sends it to the first work station area 11, and aligns the edge of the fabric with a specific position on the feeding plate 31; at this position, the feeding processing hole 312 on the feeding plate 31 is located downwards.

[0073] Step 4: Positioning module 2 presses down to tighten the upper edge and sides of the fabric, making it easier for the operator to further stretch other parts of the fabric;

[0074] Step 5: The vertical positioning structure 22 of the positioning module 2 releases the fabric, and the pressing component 41 controls the processing table 411 to move to the first work station area 11. At the same time, the folding component 42 folds the edge of the bag opening. After the folding component 42 completes the folding, it leaves the area above the processing table 411.

[0075] Step 6: After the processing table 411 moves to the first work station area 11, it presses down on the fabric on the picking plate 31; then the side positioning structure 21 in the positioning module 2 releases the fabric, and the processing table 411 presses down on the picking plate 31 and the fabric to move to the third work station area 13; then the cyclic picking module 3 sends another picking plate 31 to the first work station area 11;

[0076] Step 7: The processing table 411 moves to the third work station area 13, where the sewing module 6 sews the fabric above and below the base plate 4111 for the first time. After the first sewing is completed, the processing table 411 returns to the second work station area 12.

[0077] Step 8: The processing table 411 and the translation module 5 work together to rise, separating the material picker plate 31 from the cloth and waiting; the circulating material picker module 3 picks up the material picker plate 31 and returns to the rear of the first work station area 11 to wait;

[0078] Step 9: The operator places the bottom layer of fabric onto the newly delivered material pick-up plate 31 from step 6, and the positioning module 2 presses it down to facilitate the operator's unfolding of the fabric.

[0079] Step 10: The processing table 411 and the translation module 5 work together to send the fabric that has been sewn for the first time back to the first work station area 11; then the translation module 5 returns to the second work station area 12; then the processing table 411 controls the processing base plate 4111 to descend and press on the material picking plate 31 and the fabric, and the positioning structure in the positioning module 2 releases the fabric.

[0080] Step 11: The processing table 411 controls the material picking plate 31, the fabric on the material picking plate 31 and the fabric that has completed the first sewing to move to the third work station area 13. At the same time as the movement, the unfolding plate 4116 in the processing table 411 moves to flatten the fabric. Then the circulating material picking module 3 places the material picking plate 31 in the first work station area 11.

[0081] Step 12: After the processing table 411 transports the fabric to the third work station area 13, the sewing module 6 completes the second sewing of the fabric;

[0082] Step 13: After the second sewing is completed, the processing table 411 returns to the second work station area 12 and controls the processing base plate 4111 to rise; the circulating material picking module 3 picks up the material picking plate 31 and returns to the back of the first work station area 11 to wait, and the step ends.

[0083] During implementation, the positioning module 2 is used to position the placed fabric, which facilitates the smoothing and flattening of the fabric and effectively prevents the fixed fabric from shifting due to external forces or other components. The bag opening module 4, including the unfolding plate 4116, is used to flatten the fabric after one sewing, smoothing out any wrinkles caused by the relative movement of the translation module 5 and the processing table 411. The first pressing and transporting structure 4121, the second pressing and transporting structure 4122, and the third pressing and transporting structure 4123 all use a combination of lead screws and motors to precisely control their respective movements, achieving accurate control of the movement distance and reducing noise during movement. By adopting the bag opening method, the automatic bag opening operation of the fabric is completed, improving the quality of the sewn pockets while ensuring high efficiency.

[0084] The above description is merely a specific example of the present invention and does not constitute any limitation on the present invention. Obviously, those skilled in the art, after understanding the content and principles of the present invention, may make various modifications and changes in form and detail without departing from the principles and structure of the present invention; however, these modifications and changes based on the spirit of the present invention are still within the scope of protection of the claims of the present invention.

Claims

1. A bag-opening device, comprising a frame (1) for support; characterized in that, It also includes a positioning module (2), a circulating material handling module (3), a bag opening module (4), a translation module (5), and a sewing module (6); wherein the upper surface of the frame (1) is provided with a first work station area (11), a second work station area (12), and a third work station area (13) in a set direction; the circulating material handling module (3), the bag opening module (4), and the translation module (5) are provided inside the frame (1), and the positioning module (2) and the sewing module (6) are provided above the frame (1); the positioning module (2) is located in the first work station area (11) above the frame (1), and the positioning module (2) is used to press down the processed fabric; the sewing module (6) is located in the third work station area (13), and the sewing module (6) is used to press down the processed fabric. The bag opening is made of sewn fabric; the circulating material picking module (3) is used to transfer fabric to the bag opening module (4), and the circulating material picking module (3) moves back and forth between the first work station area (11) and the third work station area (13); the bag opening module (4) is used to form a bag opening on the fabric, and the bag opening module (4) moves between the first work station area (11), the second work station area (12) and the third work station area (13); the translation module (5) is set below the bag opening module (4), and the translation module (5) moves between the first work station area (11) and the second work station area (12). The translation module (5) is used to support the bag opening module (4) below to complete the initial sewing of the fabric, and cooperate with the bag opening module (4) to transfer the fabric back to the first work station area (11). The positioning module (2) includes a side positioning structure (21) and a vertical positioning structure (22); the side positioning structure (21) is located on the side of the first work station area (11) on the frame (1) and is used to press down the side edge of the flat fabric; the vertical positioning structure (22) is located directly above the first work station area (11) and is used to press down the flat fabric. The vertical positioning structure (22) includes a baffle plate (221); it also includes a positioning frame (222), a first positioning structure (223), a positioning plate (224), and a second positioning structure (225); wherein the positioning is fixedly installed on the frame (1); the first positioning structure (223) is fixedly installed on the upper end of the positioning frame (222), and the first positioning structure (223) is used to realize the movement in a set direction in the horizontal plane; the positioning plate (224) is fixedly installed on the movable end of the first positioning structure (223); the second positioning structure (225) is fixedly installed on the positioning plate (224), and the second positioning structure (225) is used to realize the movement in the vertical direction; two second positioning structures (225) are respectively installed on both sides of the positioning plate (224), and two baffle plates (221) are respectively fixedly installed on the movable ends of the two second positioning structures (225). The positioning module (2) also includes a marking structure (23).

2. The bag-opening device according to claim 1, characterized in that, The bag opening module (4) includes a laser component, a pressing component (41), and a folding component (42); wherein the pressing component (41) is used to press down the fabric, the pressing component (41) is movably set on the frame (1), and the movement trajectory of the pressing component (41) passes through the first work station area (11), the second work station area (12), and the third work station area (13); the laser component is fixedly set on the frame (1), the laser component is located on the movement trajectory of the pressing component (41), and the laser component is used to cut the fabric to form a bag opening; the folding component (42) is movably set above the pressing component (41), and the folding component (42) is used to open up the cut bag opening area on the fabric.

3. The bag-opening device according to claim 2, characterized in that, The pressing assembly (41) includes a processing table (411) for supporting and pressing the fabric and a pressing transport structure (412) for controlling the movement of the processing table (411); the pressing transport structure (412) includes a first pressing transport structure (4121), a second pressing transport structure (4122), and a third pressing transport structure (4123); wherein the second pressing transport structure (4122) is fixedly mounted on the first pressing slider of the first pressing transport structure (4121); the first pressing transport structure (4121) is fixedly mounted inside the frame (1); the third pressing transport structure (4123) is fixedly mounted on the second pressing slider of the second pressing transport structure (4122); the movement direction of the first pressing transport structure (4121) is the left-right direction in the horizontal plane. The movement directions of the second pressing and transporting structure (4122) and the third pressing and transporting structure (4123) are both in the front-back direction in the horizontal plane; the left-right direction and the front-back direction are set at intervals; the second pressing slider of the second pressing and transporting structure (4122) is provided with an upward-facing first support member (4124), and the third pressing and transporting structure (4123) is fixedly provided at the upper end of the first support member (4124); the processing table (411) is fixedly provided at the upper end of the first support member (4124), and the processing table (411) is used to support and flatten the fabric; the folding component (42) is fixedly provided on the third pressing slider of the third pressing and transporting structure (4123), and the folding component (42) is used to open the fabric after the opening; the folding component (42) is located above the processing table (411).

4. The bag-opening device according to claim 3, characterized in that, A second support member (4125) is also provided between the processing table (411) and the support block. The second support member (4125) is located in the horizontal direction and is fixedly installed on the upper part of the first support member (4124). A third pressing and conveying structure (4123) is fixedly installed on the second support member (4125). A processing table (411) is also fixedly installed on the end of the second support member (4125) away from the first support member (4124). The processing table (411) is located on one side of the second support member (4125) near the first work station area (11), the second work station area (12) and the third work station area (13) on the frame (1). The processing table (411) is located above the frame (1).

5. A bag-opening device according to claim 4, characterized in that, The processing table (411) includes a processing base plate (4111) for supporting the fabric, a first pressing member (4112), a second pressing member (4113), and a lateral clamping assembly (4114); the processing base plate (4111) is slidably disposed at the end of the second support member (4125), and the sliding direction of the processing base plate (4111) is in the vertical direction; a processing plate adjusting slide rail (4115) is provided between the processing base plate (4111) and the second support member (4125); the first pressing member (4112) includes a multi-stage sliding structure and a first pressing plate (4112d); the multi-stage sliding structure is disposed between the processing base plate (4111) and the first pressing plate (4112d), and the multi-stage sliding structure is located at the processing base plate (4111). Above the plate (4111); the multi-stage sliding structure includes at least one sliding structure in the horizontal direction and one sliding structure in the vertical direction; the second pressing element (4113) includes a second pressing cylinder (4113a) and a second pressing plate (4113b), the second pressing cylinder (4113a) is directly disposed above the processing base plate (4111), the movable rod of the second pressing cylinder (4113a) faces downward, and the end of the movable rod of the second pressing cylinder (4113a) is fixedly disposed with the second pressing plate (4113b); the processing base plate (4111) is provided with a sewing hole (4111a) for sewing the opening of the fabric bag, and lateral clamping components (4114) are respectively disposed on both sides of the sewing hole (4111a).

6. A bag-opening device according to claim 5, characterized in that, The multi-stage sliding structure includes a first-stage sliding structure (4112a) and a third-stage sliding structure (4112c) that slide in the vertical direction, and a second-stage sliding structure (4112b) that slides in the horizontal direction; the first-stage sliding structure (4112a) is slidably disposed on the processing base plate (4111); the second-stage sliding structure (4112b) is disposed between the first-stage sliding structure (4112a) and the third-stage sliding structure (4112c); the moving part of the third-stage sliding structure (4112c) is fixedly provided with a first pressure plate (4112d).

7. A bag-opening device according to claim 5, characterized in that, The processing table (411) also includes a flat plate (4116), which contacts the fabric below the processing table (411); the processing base plate (4111) is provided with a flattening groove (4117) corresponding to the flat plate (4116), and the flat plate (4116) can slide in the flattening groove (4117) along a set direction; a flattening cylinder (4118) is also provided between the flat plate (4116) and the processing base plate (4111), and the orientation of the flattening cylinder (4118) is consistent with the sliding direction of the flat plate (4116).

8. A bag-opening device according to claim 5, characterized in that, The lateral clamping assembly (4114) includes a lateral clamping cylinder (4114a) and a lateral clamping plate (4114b); the lateral clamping plate (4114b) is slidably disposed in a clamping groove on the processing base plate (4111); the lateral clamping cylinder (4114a) is fixedly disposed above the processing base plate (4111), and the movable end of the lateral clamping cylinder (4114a) is also fixedly connected to the lateral clamping plate (4114b); the lateral clamping plates (4114b) are respectively located on both sides of the sewing hole (4111a).

9. A bag-opening device according to claim 3, characterized in that, The folding assembly (42) includes a folding base (421), a first spreading structure (4211), and a second spreading structure (4212). The folding base (421) is slidably mounted on the third pressing slider of the third pressing and transporting structure (4123) via a folding sliding structure (4213). A folding adjustment motor (4214) is also provided between the folding base (421) and the third pressing slider. The folding sliding structure (4213) is located in the vertical direction. The first spreading structure (4211) and the second spreading structure (4212) are respectively movably mounted on the folding base (421). The first spreading structure (4211) is used to spread the fabric in the front-back direction in the horizontal plane, and the second spreading structure (4212) is used to spread the fabric in the left-right direction in the horizontal plane.

10. A method for opening a bag, characterized in that, Based on the bag-opening device according to claim 7, the bag-opening method includes the following steps: Step 1: In the second work station area (12), the operator places at least one layer of fabric on the processing base of the processing table (411), and the fabric is pressed by the first pressing part (4112) and / or the second pressing part (4113) to facilitate the operator to stretch the fabric. Step 2: The pressing assembly (41) controls the processing table (411) to press the fabric above the processing base and move to the third work station area (13), where the laser assembly makes an opening; after the pressing assembly (41) completes the opening, it returns to the second work station area (12) to wait; Step 3: The operator places the fabric on the feeding plate (31) of the first work station area (11) and sends it to the circulating feeding module (3), and aligns the edge of the fabric with a specific position on the feeding plate (31); Step 4: The positioning module (2) presses down to press the upper edge area and sides of the fabric; Step 5: The vertical positioning structure (22) of the positioning module (2) releases the fabric, and the pressing component (41) controls the processing table (411) to move to the first work station area (11). At the same time, the folding component (42) folds the edge of the bag opening. After the folding component (42) completes the folding, it leaves the area above the processing table (411). Step 6: After the processing table (411) moves to the first work station area (11), it presses down on the fabric on the pick-up plate (31); then the side positioning structure (21) in the positioning module (2) releases the fabric, and the processing table (411) presses down on the pick-up plate (31) and the fabric to move to the third work station area (13); then the cyclic pick-up module (3) sends another pick-up plate (31) to the first work station area (11). Step 7: The processing table (411) moves to the third work station area (13), and the sewing module (6) sews the fabric above and below the processing base plate (4111) for the first time. After the first sewing is completed, the processing table (411) returns to the second work station area (12). Step 8: The processing table (411) and the translation module (5) work together to rise, so as to separate the material picker plate (31) from the cloth and wait; the recycling material picker module (3) picks up the material picker plate (31) and returns to the back of the first work station area (11) to wait; Step 9: The operator places the bottom layer of fabric onto the newly delivered material pick-up plate (31) in step 6, and the positioning module (2) presses it down; Step 10: The processing table (411) and the translation module (5) work together to send the fabric that has been sewn for the first time back to the first work station area (11); then the translation module (5) returns to the second work station area (12); then the processing table (411) controls the processing base plate (4111) to descend and press on the material pick-up plate (31) and the fabric, and the positioning structure in the positioning module (2) releases the fabric; Step 11: The processing table (411) controls the material pick-up plate (31), the fabric on the material pick-up plate (31) and the fabric that has completed the first sewing to move to the third work station area (13). At the same time as the movement, the unfolding plate (4116) in the processing table (411) moves to flatten the fabric; then the circulating material pick-up module (3) places the material pick-up plate (31) in the first work station area (11). Step 12: After the processing table (411) transports the fabric to the third work station area (13), the sewing module (6) completes the second sewing of the fabric; Step 13: After the second sewing is completed, the processing table (411) returns to the second work station area (12) and controls the processing base plate (4111) to rise; the circulating material picking module (3) takes away the material picking plate (31), returns to the back of the first work station area (11) to wait, and ends the step.

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