Pocket sheet automatic feeding device

Abstract

The utility model relates to clothing machinery technical field, concretely is a kind of pocket piece automatic feeding device, including the fixture base connected with bag attaching machine mechanical arm, multiple groups of driving components such as clamp cylinder, tension cylinder, clamping jaw telescopic cylinder, flanging cylinder are equipped on it. The clamp cylinder drives the pressboard to flatten pocket piece, and tension cylinder realizes cloth pre-tensioning in conjunction with clamping jaw, and flanging cylinder drives flanging plate to complete edge folding, and cooperation mechanical arm realizes accurate transfer. The device simulates the flattening, tensioning, folding and other fine actions of artificial hand, solves the problem of low efficiency of traditional manual feeding and single function of mechanized device, significantly improves feeding stability and bag attaching precision, supports one person operating multiple machines, effectively improves production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of garment machinery technology, specifically to an automatic pocket piece feeding device. Background Technology

[0002] Currently, the pocket piece feeding process of denim patching machines mainly relies on manual operation or traditional mechanized devices, but both of these solutions have significant technical defects.

[0003] Traditional manual operation requires workers to manually grasp, position, and place pocket pieces. Although experience can be used to make minor adjustments to the position of the pocket pieces and the flatness of the fabric, manual operation is inefficient. Each machine requires a dedicated person to continuously monitor it, making it difficult to achieve a "one person, multiple machines" large-scale production model. Moreover, long hours of repetitive labor can easily lead to worker fatigue and quality problems. In particular, the inefficiency and instability of manual operation are more prominent in high-speed production scenarios.

[0004] With the application of automation technology, mechanized feeding devices such as needle-punching and gripper types have replaced some manual operations. However, their functions are limited to the single action of "gripping and transporting," and they cannot simulate the fine adjustments made by human hands, such as tightening and folding the fabric. Due to the lack of pre-tensioning and edge folding treatment for the pocket pieces, the fabric is prone to wrinkles and stretching deformation during transport due to gravity, airflow, or uneven clamping force. This results in positional deviation or unstable shape when the fabric is fed to the bag-applying machine, ultimately affecting the bag-applying accuracy and product quality. Utility Model Content

[0005] To address the shortcomings of existing manual operations, such as low efficiency and poor stability, and / or the limitations of existing mechanized feeding mechanisms, which are characterized by simple actions and lack of fabric shape adjustment capabilities, an automated feeding device is provided that can simulate human hand movements and achieve precise and stable feeding. The technical solution adopted is as follows:

[0006] An automatic pocket sheet feeding device includes a clamp base connected to the robotic arm of a bag-sealing machine. A pressure plate cylinder is fixedly installed on the clamp base. The piston rod of the pressure plate cylinder extends and retracts in the vertical direction, and its lower end is fixedly connected to a pressure plate. The lower surface of the pressure plate is a pressing working surface for pressing the pocket sheet flat.

[0007] A tensioning cylinder is fixedly installed on the upper surface of the pressure plate. The piston rod of the tensioning cylinder extends and retracts in the left and right direction, and its upper end is fixedly connected to the gantry.

[0008] The inner sides of the upright plates on the left and right sides of the gantry are respectively fixedly equipped with gripper telescopic cylinders. The piston rod of the gripper telescopic cylinder extends and retracts in the front and rear direction, and its end is fixedly connected to the clamping frame.

[0009] Folding cylinders are fixedly installed on the outer sides of the upright plates on the left and right sides of the gantry. The piston rod of the folding cylinder extends and retracts in the vertical direction, and its end is fixedly connected to the folding plate.

[0010] A gripper lifting cylinder is fixedly installed on the clamping frame. The piston rod of the gripper lifting cylinder extends and retracts in the vertical direction, and its lower end is fixedly connected to the lower gripper.

[0011] A gripper frame is fixedly mounted on the lower gripper, and a gripper cylinder is fixedly mounted on the gripper frame. The piston rod of the gripper cylinder extends and retracts in the vertical direction, and its lower end is fixedly connected to the upper gripper.

[0012] Furthermore, the crossbeam between the uprights on the left and right sides of the gantry adopts an adjustable width structure to accommodate pocket pieces of different widths.

[0013] Furthermore, the piston rod end of the gripper telescopic cylinder is connected to the gripper frame via an adjustable-length threaded connector to accommodate pocket pieces of different widths.

[0014] Furthermore, the threaded connector includes a threaded rod and a threaded sleeve. One end of the threaded rod is fixedly connected to the clamping frame, and the other end is threadedly connected to one end of the threaded sleeve. The piston rod end of the gripper telescopic cylinder is threadedly connected to the other end of the threaded sleeve. The length of the threaded connector is adjusted by adjusting the screw-in depth of the threaded rod.

[0015] Furthermore, linear slide rails with a longitudinal direction of front-to-back are fixedly installed on the inner sides of the upright plates on the left and right sides of the gantry. The linear slide rails are connected to sliders that slide together, and the sliders are fixedly connected to the clamping frame.

[0016] Furthermore, guide sleeves with vertical axes are fixedly installed on the outer sides of the upright plates on the left and right sides and on the gripper frames on the left and right sides, respectively. The guide sleeves are connected to guide rods that are slidably engaged. The guide rods are fixedly connected to the folded edge plate or the upper gripper.

[0017] Furthermore, a self-lubricating bushing is embedded in the inner wall of the guide sleeve, and the surface of the guide rod is chrome-plated.

[0018] Furthermore, the tensioning cylinder is fixedly mounted to the upper surface of the pressure plate via a shim block.

[0019] Compared with existing technologies, this utility model solves the problems of low efficiency of manual operation and single function of traditional mechanized devices by using a multi-component coordinated fine motion design, a high-precision guiding structure and an adjustment function that adapts to different specifications. It achieves "precise, stable and efficient" bag sheet feeding, and significantly improves the automation level of the bag-applying process and product quality. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 for Figure 1 The front view.

[0022] Figure 3 for Figure 1 A structural diagram from another perspective. Detailed Implementation

[0023] like Figure 1-3 The automatic pocket sheet feeding device shown includes a clamp base 10 connected to the robotic arm of a bag-sealing machine. A pressure plate cylinder 1 is fixedly installed on the clamp base 10. The piston rod of the pressure plate cylinder 1 extends and retracts in the vertical direction, and its lower end is fixedly connected to a pressure plate 2. The lower surface of the pressure plate 2 is a pressing working surface 21, which is used to flatten the pocket sheet 100.

[0024] A tensioning cylinder 7 is fixedly installed on the upper surface of the pressure plate 2. The piston rod of the tensioning cylinder 7 extends and retracts in the left and right direction, and its upper end is fixedly connected to the gantry 9.

[0025] The inner sides of the upright plates 91 on the left and right sides of the gantry 9 are respectively fixedly provided with gripper telescopic cylinders 4. The piston rod of the gripper telescopic cylinder 4 extends and retracts in the front and rear direction, and its end is fixedly connected to the clamping frame 11.

[0026] Folding cylinders 8 are fixedly installed on the outer sides of the upright plates 91 on the left and right sides of the gantry 9. The piston rod of the folding cylinder 8 extends and retracts in the vertical direction, and its end is fixedly connected to the folding plate 12.

[0027] The clamping frame 11 is fixedly provided with a gripper lifting cylinder 3. The piston rod of the gripper lifting cylinder 3 extends and retracts in the vertical direction, and its lower end is fixedly connected to the lower gripper 5.

[0028] A gripper frame 16 is fixedly mounted on the lower gripper 5, and a gripper cylinder 6 is fixedly mounted on the gripper frame 16. The piston rod of the gripper cylinder 6 extends and retracts in the vertical direction, and its lower end is fixedly connected to the upper gripper 13.

[0029] Work process:

[0030] I. Positioning and Pressing Stage: Simulating Human Hand Pressing

[0031] Initial positioning of the pocket sheet: The pocket sheet 100 is placed manually or by the feeding mechanism on the pre-positioned station of the bag-applying machine table, ensuring that the pressing surface of the pressure plate 2 is directly above the pocket sheet 100.

[0032] Pressing and fixing the pressure plate: The control system triggers the pressure plate cylinder 1, whose piston rod extends and retracts vertically downwards, driving the pressure plate 2 to descend to the surface of the pocket piece 100. The pressing surface of the pressure plate 2 is a flat horizontal surface. The cylinder pressure presses the pocket piece firmly onto the positioning position, eliminating local wrinkles and fixing the initial position, similar to pressing and smoothing the fabric with a human hand.

[0033] II. Push: Simulating manual transfer

[0034] Driven by the robotic arm of the bag-applying machine, the bag piece is moved horizontally to the designated position.

[0035] III. Clamping and Tightening Stage

[0036] The clamping frame moves back and forth: the gripper telescopic cylinder 4 is activated, the piston rod extends forward in the front-back direction, driving the clamping frame 11 to move forward through the linear slide rail 17, so that the gripper lifting cylinder 3 and the lower gripper 5 installed on the clamping frame move to the front edge of the pocket piece 100.

[0037] The lower gripper descends and inserts: The gripper lifting cylinder 3 is activated, and the piston rod extends vertically downward, driving the lower gripper 5 to descend to the table of the bag attaching machine; then the piston rod of the gripper extension cylinder 4 retracts, driving the clamping frame 11 to move backward, so that the lower gripper 5 is inserted below the front end of the pocket piece 100 (i.e., the gap between the pocket piece and the table).

[0038] The upper and lower grippers clamp the pocket piece: The gripper cylinder 6 is activated, the piston rod extends vertically downward, driving the upper gripper 13 to descend, and cooperate with the gripper frame 16 fixed on the lower gripper 5 to clamp the front edge of the pocket piece 100 from the upper and lower sides, simulating fingers pinching the fabric.

[0039] The tensioning cylinder laterally expands the uprights: When the tensioning cylinder 7 is activated, the piston rod extends and retracts outward in the left-right direction (i.e., the width direction of the gantry 9), pushing the uprights 91 on both sides of the gantry 9 to open outward simultaneously (e.g., ...). Figure 2 (As shown).

[0040] The upright plate 91 drives the clamped pocket piece 100 to stretch to both sides through the inner gripper telescopic cylinder 4 and the clamping frame 11, so that the pocket piece is taut in the width direction, eliminating wrinkles and providing tension for subsequent folding.

[0041] The opening width of the upright plate 91 is precisely controlled by the stroke of the tensioning cylinder 7, which can accommodate pocket pieces of different widths.

[0042] IV. Hemming Processing Stage

[0043] Folding plate descends and folds (in conjunction with the open state of the upright plate): With the tensioning cylinder 7 keeping the upright plate 91 open and the pocket piece taut, the folding cylinder 8 is activated, the piston rod extends and retracts vertically downward, driving the folding plate 12 to descend to the left and right edges of the pocket piece 100.

[0044] The inner arc-shaped bevel of the folding plate 12 cooperates with the open upright plate 91. Using the slight downward pressing action of the robotic arm, the left and right corners of the pocket piece are folded down along the edge of the bag-shaped plate to form a 90° fold, simulating the action of folding the fabric after being stretched open by human fingers.

[0045] The vertical guiding structure of the guide sleeve 14 and the guide rod 15 ensures that the folding plate 12 is pressed down vertically, avoiding uneven folding caused by tilting.

[0046] Pressure plate cylinder retraction and release: As the folding is completed, the piston rod of pressure plate cylinder 1 retracts, driving pressure plate 2 to rise and release the pressure on the pocket piece. At this time, the pocket piece is only clamped by the gripper, supported by the upright plate, and positioned by the folding plate, forming a stable state ready for transfer.

[0047] VI. Reset Phase

[0048] All components return to their initial positions (by modifying the direction of the tension cylinder's movement):

[0049] The piston rod of the tension cylinder 7 retracts inward in the left and right direction, causing the vertical plate 91 of the gantry 9 to close to the initial distance;

[0050] When the piston rod of the gripper telescopic cylinder 4 retracts, the gripper frame 11 moves backward, causing the gripper to leave the working area of ​​the bag-applying machine.

[0051] The gripper lifting cylinder 3 and the folding cylinder 8 are reset synchronously, and the lower gripper 5 and the folding plate 12 rise to the high position, waiting for the next loading.

[0052] Through the above process, the device achieves fully automated and precise operation from picking up the pocket piece to placing it at the bag position. Compared with existing technologies, the feeding efficiency and the pass rate of bag placement are significantly improved.

[0053] In another preferred embodiment, the crossbeam 92 between the upright plates 91 on the left and right sides of the gantry 9 adopts a width-adjustable structure to accommodate pocket pieces 100 of different widths. The adjustable width of the crossbeam between the upright plates on the left and right sides of the gantry allows for flexible adjustment according to the actual width of the pocket piece, avoiding problems such as unstable clamping or poor compatibility caused by differences in pocket piece specifications. This significantly improves the device's versatility for pocket pieces of different widths, reduces the time cost of changing tooling, and increases production efficiency and equipment utilization.

[0054] In another preferred embodiment, the piston rod end of the gripper telescopic cylinder 4 is connected to the clamping frame 11 via an adjustable-length threaded connector 20 to accommodate pocket pieces 100 of different widths. The adjustable-length threaded connector allows adjustment of the initial position of the gripper according to the pocket piece width, ensuring that the gripper is in the optimal working position when gripping pocket pieces of different widths. This effectively prevents gripping deviation or uneven clamping force caused by improper distance, enhances the adaptability of the device to diverse products, and improves the accuracy and reliability of feeding.

[0055] In another preferred embodiment, the threaded connector 20 includes a threaded rod and a threaded sleeve. One end of the threaded rod is fixedly connected to the clamping frame 11, and the other end is threadedly connected to one end of the threaded sleeve. The piston rod end of the gripper telescopic cylinder 4 is threadedly connected to the other end of the threaded sleeve. The length of the threaded connector 20 is adjusted by adjusting the screw-in depth of the threaded rod. The threaded connector consists of a threaded rod and a threaded sleeve. The connector length is changed by adjusting the depth of the threaded rod screwed into the threaded sleeve. This structure is simple and easy to operate, and has high precision and high stability adjustment characteristics. It can achieve fine length adjustment, ensure precise control of the gripper position, and ensure accurate positioning of the gripper when adapting to pocket pieces of different widths, thereby ensuring the quality and efficiency of feeding.

[0056] In another preferred embodiment, linear slide rails 17 with a longitudinal direction of front-to-back are fixedly installed on the inner sides of the upright plates 91 on both sides of the gantry 9. The linear slide rails 17 are connected to sliders 18 that slide in cooperation with the gantry, and the sliders 18 are fixedly connected to the clamping frame 11. The linear slide rails installed on the inner sides of the upright plates of the gantry and their cooperation with the sliders provide high-precision guidance for the front-to-back movement of the clamping frame. Compared with traditional sliding structures, the linear slide rails and sliders have less rolling friction, resulting in smoother and more stable movement. This effectively reduces resistance and wear during movement, while ensuring that the clamping frame moves strictly in a straight line during extension and retraction, avoiding deviation or swaying. This significantly improves the accuracy and reliability of the gripper movement, ensuring precise gripping and transfer of pocket pieces.

[0057] In another preferred embodiment, guide sleeves 14 with vertical axes are fixedly installed on the outer sides of the left and right upright plates 91 and on the left and right gripper frames 16, respectively. The guide sleeves 14 are connected to guide rods 15 that are slidably engaged. The guide rods 15 are fixedly connected to the folding plate 12 or the upper gripper 13, respectively. The guide sleeve and guide rod engagement structure on the outer sides of the upright plates and on the gripper frames provides guidance for the vertical movement of the folding plate and the upper gripper. This effectively limits the lateral displacement of the components during movement, ensuring the verticality and stability of the folding plate and the upper gripper during lifting and lowering. As a result, the folding action is more precise, and the clamping position of the upper gripper is more accurate. This effectively avoids problems such as uneven folding of the pocket piece or misalignment of the clamping caused by movement deviation, thus improving the overall working accuracy and reliability of the feeding device.

[0058] In another preferred embodiment, a self-lubricating bushing is embedded in the inner wall of the guide sleeve 14, and the surface of the guide rod 15 is chrome-plated. The self-lubricating bushing embedded in the inner wall of the guide sleeve reduces the coefficient of friction between the guide rod and the guide rod, enabling long-term stable operation without frequent lubrication, thus reducing maintenance costs and downtime. The chrome-plating of the guide rod enhances its wear resistance and corrosion resistance, extending its service life, while ensuring high precision and stability in the fit between the guide rod and the guide sleeve, further improving the reliability and durability of the device.

[0059] In another preferred embodiment, the tensioning cylinder 7 is fixedly mounted to the upper surface of the pressure plate 2 via a shim block 19. The tensioning cylinder's installation height can be flexibly adjusted to accommodate pocket pieces of different thicknesses or with varying processing requirements. This ensures the tensioning cylinder provides appropriate tension force and angle during operation, avoiding poor tensioning or interference issues caused by improper height, and improving the device's adaptability to different working conditions and operational stability.

[0060] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic pocket sheet feeding device, comprising a clamping base (10) connected to the robotic arm of a bag-sealing machine, characterized in that, A pressure plate cylinder (1) is fixedly installed on the fixture base (10). The piston rod of the pressure plate cylinder (1) extends and retracts in the vertical direction, and its lower end is fixedly connected to a pressure plate (2). The lower surface of the pressure plate (2) is a pressing working surface (21) for pressing the pocket piece (100) flat. A tensioning cylinder (7) is fixedly installed on the upper surface of the pressure plate (2). The piston rod of the tensioning cylinder (7) extends and retracts in the left and right direction, and its upper end is fixedly connected to the gantry (9). The inner sides of the upright plates (91) on the left and right sides of the gantry (9) are respectively fixedly provided with gripper telescopic cylinders (4). The piston rod of the gripper telescopic cylinder (4) extends and retracts in the front and rear direction, and its end is fixedly connected to the clamping frame (11). Folding cylinders (8) are fixedly installed on the outer sides of the upright plates (91) on the left and right sides of the gantry (9). The piston rod of the folding cylinder (8) extends and retracts in the vertical direction, and its end is fixedly connected to the folding plate (12). The clamping frame (11) is fixedly provided with a gripper lifting cylinder (3). The piston rod of the gripper lifting cylinder (3) extends and retracts in the vertical direction, and its lower end is fixedly connected to the lower gripper (5). A gripper frame (16) is fixedly installed on the lower gripper (5), and a gripper cylinder (6) is fixedly installed on the gripper frame (16). The piston rod of the gripper cylinder (6) extends and retracts in the vertical direction, and its lower end is fixedly connected to the upper gripper (13).

2. The automatic pocket sheet feeding device according to claim 1, characterized in that, The crossbeam (92) between the uprights (91) on the left and right sides of the gantry (9) adopts an adjustable width structure to accommodate pocket pieces (100) of different widths.

3. The automatic pocket sheet feeding device according to claim 1, characterized in that, The piston rod end of the gripper telescopic cylinder (4) is connected to the clamping frame (11) via an adjustable length threaded connector (20) to accommodate pocket pieces (100) of different widths.

4. The automatic pocket sheet feeding device according to claim 3, characterized in that, The threaded connector (20) includes a threaded rod and a threaded sleeve. One end of the threaded rod is fixed to the clamping frame (11), and the other end is threaded to one end of the threaded sleeve. The piston rod end of the gripper telescopic cylinder (4) is threaded to the other end of the threaded sleeve. The length of the threaded connector (20) is adjusted by adjusting the screwing depth of the threaded rod.

5. The automatic pocket sheet feeding device according to claim 1, characterized in that, Linear slide rails (17) with the longitudinal direction of front and back are fixedly installed on the inner side of the upright plates (91) on the left and right sides of the gantry (9). The linear slide rails (17) are connected to the sliding sliders (18), and the sliders (18) are fixedly connected to the clamping frame (11).

6. The automatic pocket sheet feeding device according to claim 1, characterized in that, Guide sleeves (14) with their axes in the vertical direction are fixedly installed on the outer side of the upright plates (91) on the left and right sides and on the gripper frames (16) on the left and right sides respectively. The guide sleeves (14) are connected to the sliding guide rods (15). The guide rods (15) are fixedly connected to the folded edge plate (12) or the upper gripper (13) respectively.

7. The automatic pocket sheet feeding device according to claim 6, characterized in that, The inner wall of the guide sleeve (14) is fitted with a self-lubricating bushing, and the surface of the guide rod (15) is chrome-plated.

8. The automatic pocket sheet feeding device according to claim 1, characterized in that, The tensioning cylinder (7) is fixed to the upper surface of the pressure plate (2) by means of a shim block (19).

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