Flexible cloth pressing device

Abstract

The utility model discloses a flexible cloth pressing device, and aims to provide a flexible cloth pressing device which can effectively solve the problems that one or more layers of cutting pieces at the lower part are easily adhered and brought up in the cutting piece separation process in the prior art, so that the cutting pieces are wrinkled, arched and deviated from specified positions; the flexible cloth pressing device is used for solving the problem that subsequent cut-parts cannot be grabbed and separated successfully. The cloth pressing device comprises a driving execution mechanism, a mounting part and a cloth pressing assembly arranged on the mounting part, the driving execution mechanism drives the mounting part to move up and down, and the cloth pressing assembly comprises a guiding piece, a cloth pressing piece and a cloth pressing piece, the cloth pressing roller is rotationally arranged at the bottom of the guide piece; and the elastic element provides elastic force to drive the guide element and the cloth pressing roller to move downwards.

Description

Technical Field

[0001] The utility model relates to the technical field of piece separation, and particularly relates to a flexible cloth pressing device applied to piece separation technology. Background Art

[0002] Although automation technology has been popularized in many fields, the garment manufacturing industry still widely relies on manual sewing. The main reason is that most of the existing automated sewing equipment still requires manual feeding, resulting in limited production efficiency and increased costs. The key obstacle to the future development of unmanned automated sewing equipment lies in the lack of piece automatic separation technology, which is a prerequisite for realizing a fully automated process. Piece separation technology refers to automatically grasping stacked pieces one by one from top to bottom. Piece separation technology is often applied to automated and unmanned garment production equipment and workstations as the feeding module therein.

[0003] Currently, the grippers for pieces mainly adopt vacuum adsorption or mechanical grasping methods. For example, a suction cup that can generate negative pressure is used to adsorb the piece and lift it to move the piece to the target position. Although the current grasping methods can achieve the grasping of a single layer of cloth, the inventor found in the actual application process that during the piece separation process, due to problems such as entanglement and adhesion of piece fibers, it is easy to lift one or more layers of pieces below by adhesion. Since it is the side of the piece far from the gripper, it is easy to lift one or more layers of pieces below by adhesion, resulting in wrinkles, arching, and misalignment of the pieces from the specified position, and leading to subsequent failure of piece grasping and separation, and the problem of empty grasping. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a flexible cloth pressing device that can effectively solve the problem in the prior art that during the piece separation process, it is easy to lift one or more layers of pieces below by adhesion, resulting in wrinkles, arching, and deviation of the pieces from the specified position, and leading to subsequent failure of piece grasping and separation.

[0005] The technical solution of the utility model is as follows:

[0006] A flexible cloth pressing device includes a driving and executing mechanism, a mounting part, and a cloth pressing component arranged on the mounting part. The driving and executing mechanism drives the mounting part to move up and down. The cloth pressing component includes:

[0007] A guiding member that is slidably connected to the mounting part in the up and down direction;

[0008] A cloth pressing roller that is rotatably arranged at the bottom of the guiding member;

[0009] The elastic element provides elastic force to drive the guide member and the cloth pressing roller to move downward. The specific operation of a flexible cloth pressing device of the present scheme is as follows: the driving actuator drives the mounting part and the cloth pressing assembly to move downward a specified distance, so that the cloth pressing roller presses on the stacked pieces and compresses the elastic element. The pressure exerted by the cloth pressing roller on the pieces is provided by the elastic element. In this way, during the separation of the pieces (grabbing and separating the top layer of pieces), on the one hand, the stacked pieces will be pressed by the cloth pressing roller, effectively avoiding the adhesion and lifting of one or more layers of pieces below, thereby avoiding wrinkles, arches, and misalignment of the pieces from the specified position, which may lead to failure of subsequent grasping and separation of the pieces. On the other hand, the pressure exerted by the cloth pressing roller on the pieces is provided by the elastic element, which can avoid excessive pressure exerted by the cloth pressing roller on the pieces. At the same time, the cloth pressing roller can roll, thereby ensuring that the top layer of pieces can be smoothly grasped and separated, avoiding excessive friction during the separation of the pieces, which may affect the separation of the pieces.

[0010] Preferably, the mounting portion is provided with a guide sleeve, the guide holes in the guide sleeve are distributed extending up and down, and the guide member is a guide rod, which is inserted into the guide sleeve and can slide up and down along the guide sleeve. In this way, it is ensured that the guide member can slide up and down along the guide sleeve smoothly, and the manufacturing is convenient.

[0011] Preferably, the outer side of the guide sleeve is provided with an external thread, the mounting portion is provided with mounting screw holes extending upward and downward, the guide sleeve is threadedly connected to the mounting screw holes through the external thread, the lower part of the guide rod is provided with a lower blocking part, the lower blocking part is located below the guide sleeve, and the elastic element is a spring, the spring sleeve is provided on the guide rod and pressed between the guide sleeve and the lower blocking part. In this way, on the one hand, the guide sleeve can be conveniently installed on the mounting portion; on the other hand, the height of the entire cloth pressing assembly can be adjusted by rotating the guide sleeve, thereby adjusting the pressure of the cloth pressing roller on the stacked pieces.

[0012] Preferably, the lower end of the guide sleeve is provided with an annular stopper extending outwards. Thus, when installing the guide sleeve, the guide sleeve can be rotated until the annular stopper abuts against the lower end of the mounting screw hole, so that the initial installation height of the guide sleeve remains consistent.

[0013] Preferably, an upper blocking portion is provided at the upper end of the guide rod, and the upper blocking portion is located above the guide sleeve, so that the guide rod can be prevented from being separated from the guide sleeve.

[0014] Preferably, a roller bracket is provided at the bottom of the guide member, and the cloth pressing roller is rotatably arranged on the roller bracket, so as to facilitate the installation of the cloth pressing roller.

[0015] Preferably, the roller bracket is fixed to the bottom of the guide member by bolt locking, so as to facilitate the installation and removal of the roller bracket.

[0016] Preferably, the moving direction of the installation part is parallel to the sliding direction of the guiding part.

[0017] Preferably, the cloth pressing assembly is one or more, and the rotation axes of the cloth pressing rollers of multiple cloth pressing assemblies are parallel. The number of the cloth pressing assemblies can be arranged according to actual needs. Multiple cloth pressing assemblies can achieve a better cloth pressing effect. During the process of separating the cut pieces (grasping and separating the topmost cut piece), it can more effectively prevent one or more lower cut pieces from being adhered and lifted.

[0018] Preferably, it further includes an installation bracket, and the driving actuator is installed on the installation bracket. The driving actuator is a cylinder, an electric cylinder or an electric push rod. In this way, it is convenient to install the driving actuator.

[0019] The beneficial effects of the present utility model are as follows: During the process of separating the cut pieces (grasping and separating the topmost cut piece), on the one hand, each cut piece in the stacked state will be pressed by the cloth pressing roller, effectively preventing one or more lower cut pieces from being adhered and lifted, thereby avoiding the cut pieces from being wrinkled, arched or misaligned and deviating from the designated position, which may lead to the failure of subsequent grasping and separating of the cut pieces; on the other hand, the pressure exerted by the cloth pressing roller on the cut piece is provided by the elastic element, which can prevent the pressure exerted by the cloth pressing roller on the cut piece from being too large. At the same time, the cloth pressing roller can roll, so it can ensure that the topmost cut piece can be smoothly grasped and separated, avoiding the problem that the friction force received during the cut piece separation process is too large and affecting the cut piece separation. Description of the Drawings

[0020] Figure 1 is a three-dimensional structure schematic diagram of a flexible cloth pressing device of the present utility model.

[0021] Figure 2 is a side view of a flexible cloth pressing device of the present utility model.

[0022] Figure 3 is a structure schematic diagram of a flexible cloth pressing device of the present utility model during the actual application process.

[0023] In the figure:

[0024] Driving actuator 1;

[0025] Installation part 2;

[0026] Installation bracket 3;

[0027] Cloth pressing assembly 4, cloth pressing roller 4.1, guiding part 4.2, elastic element 4.3, guiding sleeve 4.4, annular block 4.5, roller bracket 4.6;

[0028] Cut piece 5. Detailed Embodiments

[0029] Specific Embodiment 1, asFigure 1 , Figure 2 As shown in Figure 2 , a flexible cloth pressing device includes a driving actuator 1, a mounting part 2, and a cloth pressing assembly 4 provided on the mounting part 2. The driving actuator 1 drives the mounting part 2 to move up and down. The cloth pressing assembly 4 includes a guiding member 4.2, a cloth pressing roller 4.1, and an elastic element 4.3. The guiding member 4.2 is slidably connected to the mounting part 2 in the up and down direction. The cloth pressing roller 4.1 is rotatably arranged at the bottom of the guiding member 4.2. The elastic element 4.3 provides an elastic force to drive the guiding member 4.2 and the cloth pressing roller 4.1 to move downward.

[0030] The specific operation of the flexible cloth pressing device in this embodiment is as follows. As Figure 3 shown in Figure 3 , the driving actuator 1 drives the mounting part 2 and the cloth pressing assembly 4 to move downward by a specified distance, so that the cloth pressing roller 4.1 presses on the stacked cut pieces 5 and compresses the elastic element 4.3. Specifically, in this process, the cloth pressing roller 4.1 first presses on the stacked cut pieces, and then the driving actuator 1 drives the mounting part 2 to continue to move downward, thereby compressing the elastic element 4.3 until the mounting part 2 moves downward to the specified position. The pressure exerted by the cloth pressing roller 4.1 on the cut pieces is provided by the elastic element 4.3. In this way, during the process of separating the cut pieces (the topmost cut piece is grabbed and separated), on the one hand, each of the stacked cut pieces will be pressed by the cloth pressing roller 4.1, effectively preventing the underlying one or more cut pieces from being adhered and lifted, thus avoiding wrinkles, arching, and misalignment of the cut pieces from the specified position, which may lead to failure in grabbing and separating the subsequent cut pieces. On the other hand, the pressure exerted by the cloth pressing roller 4.1 on the cut pieces is provided by the elastic element 4.3, which can prevent the pressure exerted by the cloth pressing roller 4.1 on the cut pieces from being too large. At the same time, the cloth pressing roller 4.1 can roll, so it can ensure that the topmost cut piece can be smoothly grabbed and separated, avoiding excessive friction during the separation of the cut pieces, which may affect the separation of the cut pieces.

[0031] The driving actuator 1 drives the mounting part 2 to move up and down. Specifically,

[0032] In one implementation of this embodiment, the driving actuator 1 is a cylinder. For example, a double-axis cylinder. The mounting part 2 is directly installed at the end of the telescopic rod of the double-axis cylinder. Only by using the double-axis cylinder can it be ensured that the driving actuator 1 stably drives the mounting part 2 to move up and down; there is no need to arrange structures such as guide rails to guide the movement of the mounting part 2.

[0033] Of course, the driving actuator 1 can also be a single-axis cylinder. When using a single-axis cylinder, generally a guide rail is required, that is, the mounting part 2 is installed on the slider of the guide rail, and the movement of the mounting part 2 is guided by the guide rail.

[0034] In another implementation manner of this embodiment, the driving actuator 1 is an electric cylinder or an electric push rod. The mounting part 2 can be directly mounted at the end of the telescopic rod of the electric cylinder or the electric push rod, and the mounting part 2 is directly driven by the electric cylinder or the electric push rod to move up and down; it can cooperate with a guide rail to drive the mounting part 2 to move up and down, that is, the mounting part 2 is mounted on the slider of the guide rail, and the movement of the mounting part 2 is guided by the guide rail. If the driving actuator 1 is an electric cylinder or an electric push rod, then the up and down movement stroke of the mounting part 2 can be adjusted by the electric cylinder or the electric push rod as needed to meet the actual requirements. For example, during the process of separating cut pieces, as the height of the stacked cut pieces gradually decreases, the height of the mounting part 2 can be gradually reduced by the electric cylinder or the electric push rod, so that the pressure exerted by the cloth pressing roller 4.1 on the cut pieces remains consistent.

[0035] Of course, it should be noted that the driving actuator 1 can also be other driving actuators in the prior art.

[0036] Specific Embodiment 2, as Figure 1 、 Figure 2 shown, a flexible cloth pressing device includes a driving actuator 1, a mounting part 2, and a cloth pressing assembly 4 provided on the mounting part 2. The driving actuator 1 drives the mounting part 2 to move up and down. The cloth pressing assembly 4 includes a guiding member 4.2, a cloth pressing roller 4.1, and an elastic element 4.3. The guiding member 4.2 is slidably connected to the mounting part 2 in the up and down direction. The cloth pressing roller 4.1 is rotatably provided at the bottom of the guiding member 4.2. The elastic element 4.3 provides an elastic force to drive the guiding member 4.2 and the cloth pressing roller 4.1 to move downward.

[0037] In one implementation manner of this embodiment, the cloth pressing assembly 4 is one.

[0038] In another implementation manner of this embodiment, the cloth pressing assembly 4 is multiple (not shown in the figure), for example, the cloth pressing assembly 4 is 2 or 3 or 4. The rotation axes of the cloth pressing rollers 4.1 of the multiple cloth pressing assemblies 4 are parallel. The multiple cloth pressing assemblies 4 can be arranged side by side, or can be arranged staggeredly according to needs. The number of the cloth pressing assemblies 4 can be arranged according to actual needs. The multiple cloth pressing assemblies 4 can achieve a better cloth pressing effect, and can more effectively avoid sticking and lifting one or more lower layers of cut pieces during the process of separating cut pieces (grasping and separating the topmost cut piece).

[0039] The specific operation of a flexible cloth pressing device in this embodiment is as follows, as Figure 3As shown, the driving actuator 1 drives the mounting part 2 and the cloth pressing assembly 4 to move downward a specified distance, so that the cloth pressing roller 4.1 presses on the stacked pieces 5 and compresses the elastic element 4.3. In this specific process, the cloth pressing roller 4.1 first presses on the stacked pieces, and then the driving actuator 1 drives the mounting part 2 to continue to move downward, thereby compressing the elastic element 4.3, until the mounting part 2 moves downward to the specified position. The pressure exerted by the cloth-pressing roller 4.1 on the pieces is provided by the elastic element 4.3; thus, during the separation of the pieces (the top layer of pieces is grasped and separated), on the one hand, the stacked pieces will be pressed by the cloth-pressing roller 4.1, effectively preventing one or more layers of pieces below from being adhered and lifted up, thereby preventing the pieces from wrinkling, arching, or being misaligned from the specified position, which would lead to failure in subsequent grasping and separation of the pieces; on the other hand, the pressure exerted by the cloth-pressing roller 4.1 on the pieces is provided by the elastic element 4.3, which can prevent the pressure exerted by the cloth-pressing roller 4.1 on the pieces from being too great, and at the same time, the cloth-pressing roller 4.1 can roll, thereby ensuring that the top layer of pieces can be grasped and separated smoothly, and preventing the problem of excessive friction during the separation of the pieces, which would affect the separation of the pieces.

[0040] The driving actuator 1 drives the mounting part 2 to move up and down. Specifically,

[0041] In one implementation of this embodiment, the driving actuator 1 is a cylinder, such as a double-axis cylinder, and the mounting portion 2 is directly mounted on the end of the telescopic rod of the double-axis cylinder. The driving actuator 1 can drive the mounting portion 2 to move up and down smoothly only through the double-axis cylinder; there is no need to arrange a guide rail or other structure to guide the movement of the mounting portion 2.

[0042] Of course, the driving actuator 1 can also be a single-axis cylinder. If a single-axis cylinder is used, it generally needs to be matched with a guide rail, that is, the mounting part 2 is installed on the slider of the guide rail, and the movement of the mounting part 2 is guided by the guide rail.

[0043] In another implementation of the present embodiment, the driving actuator 1 is an electric cylinder or an electric push rod. The mounting portion 2 can be directly mounted on the end of the telescopic rod of the electric cylinder or the electric push rod, and the mounting portion 2 can be directly driven up and down by the electric cylinder or the electric push rod; the mounting portion 2 can be driven up and down in cooperation with the guide rail, that is, the mounting portion 2 is mounted on the slider of the guide rail, and the movement of the mounting portion 2 is guided by the guide rail. If the driving actuator 1 is an electric cylinder or an electric push rod, the up and down movement stroke of the mounting portion 2 can be adjusted by the electric cylinder or the electric push rod as needed to meet actual needs. For example, in the process of separating the cut pieces, as the height of the stacked cut pieces gradually decreases, the height of the mounting portion 2 can be gradually lowered by the electric cylinder or the electric push rod, so that the pressure of the cloth pressing roller 4.1 on the cut pieces remains consistent.

[0044] Of course, it should be noted that the driving actuator 1 can also be other driving actuators in the prior art.

[0045] In this embodiment, the moving direction of the mounting portion 2 is parallel to the sliding direction of the guiding member 4.2. In this way, during the process of the driving actuator 1 driving the mounting portion 2 and the cloth pressing assembly 4 to move downward, when the cloth pressing roller 4.1 first presses on the stacked cut pieces, and then the driving actuator 1 drives the mounting portion 2 to continue moving downward, since the moving direction of the mounting portion 2 is parallel to the sliding direction of the guiding member 4.2, it is beneficial for the guiding member 4.2 to slide upward, thereby compressing the elastic element 4.3 until the mounting portion 2 moves downward to a specified position.

[0046] Further, as Figure 1 、 Figure 2 shown, a flexible cloth pressing device further includes a mounting bracket 3. The driving actuator 1 is mounted on the mounting bracket 3 by bolts. For example, the driving actuator 1 is mounted on the mounting bracket 3 by bolts. In this way, it is convenient for the installation and arrangement of the driving actuator 1.

[0047] Further, as Figure 1 、 Figure 2 shown, the mounting portion 2 is a mounting plate, and the mounting plate is perpendicular to the moving direction of the mounting portion 2. Of course, it should be noted that the mounting portion 2 can also be other structures, such as a bracket structure or other integral structures.

[0048] Further, as Figure 1 、 Figure 2 shown, a guide sleeve 4.4 is provided on the mounting portion 2. The guide holes in the guide sleeve 4.4 extend vertically. The guiding member 4.2 is a guide rod. The guide rod is inserted into the guide sleeve 4.4 and can slide up and down along the guide sleeve 4.4. In this way, it is ensured that the guiding member 4.2 can slide up and down along the guide sleeve 4.4 smoothly and is easy to manufacture.

[0049] The installation method of the guide sleeve 4.4 can be selected according to needs. For example, the guide sleeve 4.4 is mounted on the mounting portion 2 by bolts or riveting, or the guide sleeve 4.4 is mounted on the mounting portion 2 by welding.

[0050] The guide rod can slide up and down along the guide sleeve 4.4, and the guide rod and the guide sleeve 4.4 cannot rotate relative to each other. For example, one of the guide rod and the guide sleeve 4.4 is provided with axially extending ridges, and the other is provided with guide grooves cooperating with the ridges.

[0051] In this embodiment, as Figure 1 、 Figure 2As shown in the figure, the outer side surface of the guide sleeve 4.4 is provided with an external thread, and the installation part 2 is provided with installation screw holes extending vertically. The guide sleeve 4.4 is threadedly connected to the installation screw holes through the external thread. The lower part of the guide rod is provided with a lower blocking part. In this embodiment, the lower part of the guide rod is provided with an annular step surface, and this annular step surface constitutes the lower blocking part. The lower blocking part is located below the guide sleeve 4.4. The elastic element 4.3 is a spring. The spring is sleeved on the guide rod and pressed between the guide sleeve 4.4 and the lower blocking part. In this way, on the one hand, the guide sleeve 4.4 can be conveniently installed on the installation part 2; on the other hand, by rotating the guide sleeve 4.4, the height of the entire fabric pressing assembly 4 can be adjusted, and then the pressure of the fabric pressing roller 4.1 on the stacked cut pieces can be adjusted to adapt to the pressing requirements of different fabrics; for example, by rotating the guide sleeve 4.4, the height of the entire fabric pressing assembly 4 is adjusted downward. In this way, when the driving actuator 1 drives the installation part 2 and the fabric pressing assembly 4 to move downward a specified distance (the height of the stacked cut pieces remains unchanged), the fabric pressing roller 4.1 presses on the stacked cut pieces and compresses the elastic element 4.3. During this process, the compression amount of the elastic element 4.3 (spring) increases, so that the pressure of the fabric pressing roller 4.1 on the stacked cut pieces can be increased. Or by rotating the guide sleeve 4.4, the height of the entire fabric pressing assembly 4 is adjusted upward. In this way, when the driving actuator 1 drives the installation part 2 and the fabric pressing assembly 4 to move downward a specified distance (the height of the stacked cut pieces remains unchanged), the fabric pressing roller 4.1 presses on the stacked cut pieces and compresses the elastic element 4.3. During this process, the compression amount of the elastic element 4.3 (spring) decreases, so that the pressure of the fabric pressing roller 4.1 on the stacked cut pieces can be reduced.

[0052] Further, as Figure 1 、 Figure 2 shown, the lower end of the guide sleeve 4.4 is provided with an outwardly extending annular block 4.5. In this way, when installing the guide sleeve 4.4, the guide sleeve 4.4 can be rotated until the annular block 4.5 abuts against the lower end of the installation screw hole, so that the initial installation height of the guide sleeve 4.4 is kept consistent.

[0053] Further, the upper end of the guide rod is provided with an upper blocking part, and the upper blocking part is located above the guide sleeve 4.4. In this way, the guide rod can be prevented from detaching from the guide sleeve 4.4.

[0054] Further, as Figure 1 、 Figure 2 shown, the bottom of the guide member 4.2 is provided with a roller bracket 4.6, and the fabric pressing roller 4.1 is rotatably arranged on the roller bracket 4.6. In this way, the installation of the fabric pressing roller 4.1 is facilitated. The roller bracket 4.6 is in an inverted U shape.

[0055] Further, the roller bracket 4.6 is fixedly locked to the bottom of the guide member 4.2 by bolts. In this embodiment, the roller bracket 4.6 is fixedly locked to the bottom of the guide rod by bolts. This facilitates the installation and disassembly of the roller bracket 4.6. Of course, it should be noted that the roller bracket 4.6 is fixed to the bottom of the guide member 4.2 by welding, riveting or other means.

[0056] The above are only the preferred embodiments of the present invention, and do not impose any limitations on the present invention. Any simple modifications, changes, and equivalent transformations made to the above embodiments according to the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A flexible cloth pressing device, characterized in that: It includes a driving actuator, a mounting part and a cloth pressing assembly arranged on the mounting part. The driving actuator drives the mounting part to move up and down. The cloth pressing assembly includes: A guide member slidably connected to the mounting portion in an up-down direction; A cloth pressing roller, which is rotatably arranged at the bottom of the guide member; The elastic element provides elastic force to drive the guide member and the cloth pressing roller to move downward.

2. A flexible cloth pressing device according to claim 1, characterized in that: The installation part is provided with a guide sleeve, and the guide holes in the guide sleeve are distributed and extended up and down. The guide member is a guide rod, which is inserted in the guide sleeve and can slide up and down along the guide sleeve.

3. A flexible cloth pressing device according to claim 2, characterized in that: The outer side surface of the guide sleeve is provided with an external thread, and the mounting portion is provided with mounting screw holes extending up and down. The guide sleeve is threadedly connected to the mounting screw holes through the external thread. The lower part of the guide rod is provided with a lower blocking portion, and the lower blocking portion is located below the guide sleeve. The elastic element is a spring, and the spring sleeve is arranged on the guide rod and pressed between the guide sleeve and the lower blocking portion.

4. A flexible cloth pressing device according to claim 2 or 3, characterized in that: The lower end of the guide sleeve is provided with an annular stopper extending outward.

5. A flexible cloth pressing device according to claim 2 or 3, characterized in that: An upper blocking portion is arranged at the upper end of the guide rod, and the upper blocking portion is located above the guide sleeve.

6. A flexible cloth pressing device according to claim 1, 2 or 3, characterized in that: A roller bracket is arranged at the bottom of the guide member, and the cloth pressing roller is rotatably arranged on the roller bracket.

7. A flexible cloth pressing device according to claim 6, characterized in that: The roller bracket is fixed to the bottom of the guide member by bolt locking.

8. A flexible cloth pressing device according to claim 1, 2 or 3, characterized in that: The moving direction of the mounting portion is parallel to the sliding direction of the guide member.

9. A flexible cloth pressing device according to claim 1, 2 or 3, characterized in that: There are one or more cloth pressing assemblies, and the rotation axes of the cloth pressing rollers of the multiple cloth pressing assemblies are parallel.

10. A flexible cloth pressing device according to claim 1, 2 or 3, characterized in that: It also includes a mounting bracket, on which a driving actuator is mounted. The driving actuator is a pneumatic cylinder, an electric cylinder or an electric push rod.

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