Mechanism for sleeving elastic bands and method for sleeving elastic bands in the cuffs of products

Abstract

The application provides an operating mechanism for rubber band and an operating method for rubber band sleeve into the product sleeve, the operating mechanism comprises a first part and a second part which can be relatively moved in the front-back direction, the first part comprises an opening and closing driver and two groups of opening and closing units, and each group of opening and closing units comprises a support plate, a turning plate, a turning driver and a side plate, a notch is arranged on the outer side wall of the support plate, the turning plate is sleeved on the support plate, the side plate is located on the outer side of the turning plate, a groove which extends along the front-back direction and penetrates to the front side of the side plate is formed on the outer side wall of the side plate, the second part is arranged on the front side of the first part, and the second part is provided with a hook plate which is located on the outer side of the side plate and corresponds to the groove; so that the rubber band sleeve into the sleeve position of the flexible product and the turning edge can be operated by mechanization.

Description

Technical Field

[0001] This invention relates to the field of product processing with elastic bands, specifically to an operating mechanism for attaching elastic bands and a method for attaching elastic bands into the cuffs of products. Background Technology

[0002] To make gloves, sleeves, or clothing more secure, elastic bands are usually added to the cuffs, and then the cuffs are turned outwards to secure them, thus fixing the elastic bands to the cuffs.

[0003] Although the product already exists, the method of inserting the rubber band into the cuff of the flexible product and folding it over can currently only be done manually, making it difficult to use mechanized equipment. This results in the inability to effectively increase production capacity. Summary of the Invention

[0004] Therefore, the present invention provides an operating mechanism for inserting elastic bands and an operating method for inserting elastic bands into the cuff of a product. By designing this operating mechanism, the method of inserting elastic bands into the cuff of a flexible product and folding the edges can be carried out mechanically.

[0005] To achieve the above objectives, the technical solution provided by the present invention is as follows: An operating mechanism for attaching a rubber band includes a first part and a second part that are movable relative to each other in a front-back direction. The first part includes an opening and closing driver and two sets of opening and closing units. Each set of opening and closing units includes a support plate, a flange plate, a flange driver, and a side plate. The support plates of the two sets of opening and closing units are arranged opposite each other, and a notch is provided on the outer side wall of the support plate. The flange plate is fitted onto the support plate. The flange driver drives the flange plate to move back and forth relative to the support plate. The side plate is located outside the flange plate. A groove extending in the front-back direction and penetrating to its front side is provided on the outer side wall of the side plate. The opening and closing driver drives the two sets of opening and closing units to move the two sets of opening and closing units closer together or separate. The second part is located in front of the first part and has a hook plate located outside the side plate and corresponding to the groove.

[0006] Furthermore, the flange driver is mounted on the support plate.

[0007] Furthermore, the side plate is mounted on the support plate.

[0008] Furthermore, the side plate includes a side plate body and a protruding post disposed at the front end of the side plate body. The side plate body forms a limiting end face on the periphery of the protruding post. The groove is disposed on the outer side wall of the side plate body and the protruding post and extends to the front side of the protruding post.

[0009] Furthermore, the flange plate has a "U"-shaped flange, which includes an upper side, a lower side, and a connecting side connecting the upper side and the lower side. The upper side corresponds to the upper side of the support plate, the lower side corresponds to the lower side of the support plate, and the connecting side corresponds to the outer side wall of the support plate.

[0010] Furthermore, the opening and closing actuator includes a pusher, an inclined guide plate, and a tension spring. The tension spring is connected between the support plates of the two sets of opening and closing units. The inclined guide plate is disposed between the support plates of the two sets of opening and closing units and forms an inclined guide engagement. The pusher drives and connects to the inclined guide plate.

[0011] Furthermore, the inclined guide plate has an isosceles trapezoidal structure, and the two inclined sides of the inclined guide plate abut against the inner sidewalls of the support plates of the two sets of opening and closing units, respectively.

[0012] Furthermore, the first part is movable back and forth, the second part is fixed in the back and forth direction, the first part is disposed on a guide rail extending in the back and forth direction, and also includes a translation driver, which drives the first part to move back and forth along the guide rail.

[0013] Furthermore, it also includes a top abutment portion, which is disposed below the first portion. The top abutment portion has a liftable top abutment plate that rises and abuts against the lower side of the support plate.

[0014] Furthermore, the top abutment portion is fitted onto the second portion.

[0015] A method for inserting a rubber band into the cuff of a product, employing the aforementioned rubber band inserting mechanism, includes the following steps: S1, place the rubber band on the movement trajectory of the first or second part; S2, drive the first or second part closer to each other. During this process, the support plates of the two sets of opening and closing units pass through the rubber band and are inserted into the product cuff, and the rubber band is transferred to the side plate of the two sets of opening and closing units. S3, the opening and closing driver drives the two sets of opening and closing units to expand outward, so that the product cuff is opened by the support plates of the two sets of opening and closing units, and so that the hook plate of the second part is inserted into the groove of the side plate. S4, drive the first or second part away from each other, the rubber band is driven by the hook plate to detach from the side plate and fit around the outer perimeter of the product and get into the notch of the support plate; S5, the flange driver drives the flange plate to move forward, so that the flange plate pushes the cuff of the product forward. As the product part at the notch position is tightened, when the cuff of the product passes the notch position of the support plate, it forms an outward flange and wraps the elastic band.

[0016] Furthermore, between steps S4 and S5, there are steps S4-5, in which the opening and closing driver drives the two sets of opening and closing units to move inward a certain distance.

[0017] The technical solution provided by this invention has the following beneficial effects: By designing this operating mechanism, the process of inserting rubber bands into the cuffs of flexible products and flipping them over can be carried out mechanically, eliminating the need for manual operation. This ensures stable and reliable operation and effectively improves work efficiency. Attached Figure Description

[0018] Figure 1 The figure shown is a three-dimensional schematic diagram of the operating mechanism for attaching the rubber band in Embodiment 1; Figure 2 As shown Figure 1 Enlarged view of region A in the middle; Figure 3 The image shown is a partial top view of the operating mechanism for attaching the rubber band in Embodiment 1; Figure 4 The figure shown is a three-dimensional schematic diagram of a partial structure of the rubber band-attaching mechanism in Embodiment 1; Figure 5 The diagram shown is a structural schematic of a single flange plate in Embodiment 1; Figure 6 The diagram shown illustrates the process of combining the long-sleeved gloves with the elastic band in an embodiment. Figure 7 The diagram shown is a structural schematic of the long-sleeved gloves after the cuffs have been turned up. Detailed Implementation

[0019] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention, primarily used to illustrate the embodiments and to explain the operating principles of the embodiments in conjunction with the relevant descriptions in the specification. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0020] In the description of this invention, terms such as "upper," "lower," "left," "right," "front," and "rear," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0022] Example 1 Reference Figures 1 to 5 As shown, this embodiment provides an operating mechanism for attaching rubber bands, including a first part 101 and a second part 102 that are movable relative to each other in the front-back direction. Specifically, in this embodiment, the first part 101 is movable in the front-back direction, while the second part 102 is fixed in the front-back direction. The first part 101 is disposed on a guide rail 103 extending in the front-back direction, and also includes a translation driver 104. The translation driver 104 drives the first part 101 to move the first part 101 back and forth along the guide rail 103.

[0023] The first part 101 includes an opening / closing actuator and two sets of opening / closing units. Each set of opening / closing units includes a support plate 12, a flange plate 13, a flange actuator 14, and a side plate 15. The support plates 12 of the two sets of opening / closing units are arranged opposite each other. For ease of explanation, the direction towards the central axis I between the support plates 12 of the two sets of opening / closing units is defined as inside, and the opposite direction is defined as outside. Figure 3 As shown, the two sets of opening and closing units are symmetrically arranged around the central axis I. The following explanation will focus on one set of opening and closing units as an example.

[0024] A notch 121 is provided on the outer side wall of the support plate 12. Preferably, the notch 121 is an arc-shaped notch without any sharp parts. The flange plate 13 is fitted onto the outer side wall of the support plate 12. The flange driver 14 is fixed to the support plate 12 and drives the flange plate 13. In this embodiment, the flange driver 14 is a drive cylinder, and the piston rod of the drive cylinder is connected to the flange plate 13 to drive the flange plate 13 to move back and forth relative to the support plate 12.

[0025] The side plate 15 is located outside the flange plate 13 and connected to the support plate 12. A groove 1501 extending in the front-rear direction and penetrating to the front side of the side plate 15 is provided on the outer wall of the side plate 15. Specifically, the front side of the side plate 15 corresponds to the notch 121 of the support plate 12. The opening and closing driver drives and connects two sets of opening and closing units to drive the two sets of opening and closing units to move closer or separate from each other. The second part 102 is located in front of the first part 101. The second part 102 has a hook plate 16 located outside the side plate 15 and corresponding to the groove 1501. Specifically, the hook plate 16 is just an L-shaped hook extending inward.

[0026] Furthermore, this embodiment also provides a method for inserting a rubber band into the cuff of a product. Specifically, the product is a long-sleeved glove, and the method employs the aforementioned rubber band insertion mechanism, including the following steps: S1, place the rubber band on the movement trajectory of the first part 101 or the second part 102; specifically, this step can be implemented by other mechanisms, such as using a movable gripper.

[0027] S2, drive the first part 101 or the second part 102 to move closer to each other. In this embodiment, the first part 101 is driven to move forward along the guide rail 103 by controlling the translation driver 104 to move closer to the second part 102. During the process, the two support plates 12 pass through the rubber band and are inserted into the cuff of the long-sleeved glove. At the same time, the rubber band is transferred to the side plates 15 of the two sets of opening and closing units, that is, the side plates 15 of the two sets of opening and closing units together open the rubber band.

[0028] Specifically, for the positioning of long-sleeved gloves, the upper and lower vacuum heads can be used to hold the upper and lower sides of the long-sleeved gloves and open them, thereby positioning the cuffs of the long-sleeved gloves so that the two support plates 12 can be inserted more accurately into the cuffs of the long-sleeved gloves.

[0029] S3, the opening and closing driver drives the two sets of opening and closing units to expand outward, so that the cuff of the long-sleeved glove is opened by the support plate 12 of the two sets of opening and closing units, and so that the hook plate 16 of the second part 102 is inserted into the groove 1501 of the side plate 15. Specifically, the support plate 12 moves outward so that the hook plate 16 is inserted into the groove 1501 of the side plate 15.

[0030] S4, drive the first part 101 or the second part 102 away from each other. In this embodiment, the translation driver 104 drives the first part 101 to move backward along the guide rail 103 to move away from the second part 102. During this process, since the hook plate 16 is stationary, the overall backward movement of the first part 101 will cause the rubber band on the side plate 15 to pass through the hook plate 16 and be hooked by the hook plate 16. As the first part 101 continues to move backward, the rubber band will detach from the side plate 15 and fall onto the inner support plate 12. Specifically, in the initial stage, the flange plate 13 does not extend forward, so the rubber band will not fall onto the flange plate 13, but will be directly wrapped around the outer periphery of the long-sleeved glove and inserted into the notch 121 of the support plate 12. This state is as follows. Figure 6 As shown, at this time, the long-sleeved glove 1 at the gap 121 position is also tightened by the rubber band 2.

[0031] S5, the flange driver 14 drives the flange plate 13 to move forward, causing the flange plate 13 to push the cuff of the long-sleeved glove 1 forward. Because the long-sleeved glove portion at the notch 12 is tightened, when the cuff of the long-sleeved glove 1 passes the notch 121 of the support plate 12, it forms an outward flange and wraps around the elastic band 2. This state is as follows... Figure 7 As shown.

[0032] In this way, the operation of slipping the rubber band 2 into the cuff of the long-sleeved glove 1 and turning the edge over to cover it is realized. The whole process is mechanized, requiring no manual operation, and the operation is stable and reliable, effectively improving work efficiency.

[0033] Furthermore, in this embodiment, between steps S4 and S5, there is also step S4-5, where the opening and closing driver drives the two sets of opening and closing units to move inward a certain distance. This allows the cuffs of the long-sleeved glove 1 to be less tight, enabling better hemming. The specific distance to move inward can be designed according to actual conditions. Of course, in other embodiments, step S4-5 may be omitted.

[0034] Specifically, the flange driver 14 and the side plate 15 are directly mounted on the support plate 12, enabling synchronous linkage in the left and right directions. Of course, in other embodiments, the flange driver 14, the side plate 15 and the support plate 12 can also be indirectly fixed, that is, all fixed on a connecting frame, etc.

[0035] In a further preferred embodiment, the flange 13 has a U-shaped flange, which includes an upper side 131, a lower side 132, and a connecting side 133 connecting the upper side 131 and the lower side 132. The upper side 131 corresponds to the upper side of the support plate 12, the lower side 132 corresponds to the lower side of the support plate 12, and the connecting side 133 corresponds to the outer side wall of the support plate 12. Thus, during the flange turning process, more of the cuff of the long-sleeved glove 1 can be contacted, allowing the upper and lower cuffs to be pushed forward more synchronously, resulting in a more reliable flange turning. Of course, in other embodiments, the structure of the flange 13 is not limited to this.

[0036] In a further preferred embodiment, the side plate 15 includes a side plate body 151 and a protrusion 152 disposed at the front end of the side plate body 151. The side plate body 151 forms a limiting end face 153 on the periphery of the protrusion 152. The groove 1501 is disposed on the outer side wall of the side plate body 151 and the protrusion 152 and extends to the front side of the protrusion 152. With this configuration, when the rubber band 2 is fitted into the side plate 15, the rubber band 2 can be restricted by the limiting end face 153 and thus positioned on the protrusion 152, preventing the rubber band 2 from being positioned too far back and unable to cooperate with the hook plate 16.

[0037] Specifically, the first part 101 is mounted on a bracket 105 and slidably mounted on a guide rail 103 via the bracket 105; the translation driver 104 can be implemented by a telescopic cylinder, a pulley drive device, or a screw and nut pair device. The bracket 105 is equipped with a transverse rail extending to the left and right, and two support plates 12 are movably mounted on the transverse rail.

[0038] More preferably, each support plate 12 includes a main board and a function board. The main board is used to cooperate with the opening and closing driver. The function board is detachably mounted on the front end of the main board to realize the function of detachable replacement. The notch 121 is set on the function board so that different function boards can be switched according to different work products.

[0039] Meanwhile, the side plate 15 can be slidably mounted on the outside of the support plate 12 and fixed by fasteners. In this way, the position of the side plate 15 can be adjusted according to different needs, making it more adaptable.

[0040] Specifically, the second part 102 includes two independent modules, each module is provided with a hook plate 16 to correspond to the grooves 1501 of the two sets of opening and closing units respectively. Both modules can be slidably mounted on a frame. Specifically, the guide rail is also formed on the frame. By adjusting the distance between the two modules, different operating conditions can be adapted.

[0041] Specifically, in this embodiment, the opening / closing actuator includes a pusher 111, an inclined guide plate 112, and a tension spring. The tension spring is connected between the support plates 12 of the two opening / closing units. The inclined guide plate 112 is disposed between the support plates 12 of the two opening / closing units and forms an inclined guide engagement with the support plates 12. Further, the inclined guide plate 112 has an isosceles trapezoidal structure, and the two inclined sides of the inclined guide plate 112 respectively abut against the inner sidewalls of the support plates 12 of the two opening / closing units, thereby forming an inclined guide engagement. The pusher 111 is also a driving cylinder, and the pusher 111 drives the inclined guide plate 112. When the pusher 111 drives the inclined guide plate 112 forward, the inclined guide plate 112 opens the support plates 12 on both sides, and the tension spring is stretched and stores energy. When the pusher 111 drives the inclined guide plate 112 backward, the two support plates 12 lose their supporting force and close together under the action of the tension spring. This configuration results in a simple structure and stable and reliable operation. Of course, in other embodiments, the structure of the opening and closing driver is not limited to this.

[0042] In a further preferred embodiment, the operating mechanism further includes a top abutment portion 17, which is disposed below the first portion 101. The top abutment portion 17 has a liftable top abutment plate 172. Specifically, there are two top abutment portions 17, each corresponding to one of the two support plates 12. Each top abutment portion 17 includes a lifting driver 171 and the top abutment plate 172. The lifting driver 171 drives the top abutment plate 172 to rise and fall, with the rising top abutment plate 172 pressing against the lower side of the support plate 12. With this configuration, when the hem needs to be rolled up, the top abutment plate 172 is first raised and pressed against the lower side of the support plate 12 to hold the long-sleeved glove 1 in place before the hem is rolled up, making the long-sleeved glove 1 less likely to detach and the hem rolling more reliable.

[0043] Specifically, the abutment portion 17 is mounted on the second portion 102, meaning that the lifting drive 171 of the abutment portion 17 is fixed to the second portion 102, forming an integral unit with the second portion 102. Of course, in other embodiments, the abutment portion 17 may also be directly fixed to the frame, etc.

[0044] Example 2 The operating mechanism for attaching a rubber band provided in this embodiment is roughly the same as that in Embodiment 1, except that: in this embodiment, the first part 101 is fixed in the front-back direction, while the second part 102 is movable in the front-back direction, and the long-sleeved glove 1 and the rubber band 2 are transferred to the first part 101 through the second part 102.

[0045] The method for inserting the elastic band into the cuff of the product provided in this embodiment differs from that in Embodiment 1 in that: in step S2, by controlling the second part 102 to move backward and approach the first part 101, the second part 102 inserts the elastic band 2 into the side plates 15 of the two sets of opening and closing units, and inserts the cuff of the long-sleeved glove 1 into the two support plates 12 of the first part 101; in step S4, by controlling the second part 102 to move forward and away from the first part 101, the forward movement of the hook plate 16 will hook the elastic band 2, causing the elastic band 2 to detach from the side plate 15 and fall into the notch 121 of the inner support plate 12. The remaining actions are the same as in Embodiment 1.

[0046] Example 3 This embodiment provides a glove processing device, including a frame and a rubber band feeding mechanism, a rubber band expanding mechanism, a rubber band transferring mechanism, a long-sleeved glove feeding mechanism, a rubber band attaching operation mechanism, and a sealing mechanism mounted on the frame; wherein, the rubber band attaching operation mechanism is the structure in Embodiment 1 or Embodiment 2 above; the rubber band feeding mechanism can be implemented using a vibratory feeding mechanism in the prior art, the rubber band feeding mechanism has an output port, the rubber band expanding mechanism has a set of support rods that can be closed or opened, after the rubber band is output through the output port of the rubber band feeding mechanism, it is opened by the support rods of the rubber band expanding mechanism, the rubber band transferring mechanism can switch between a first position on the movement trajectory of the rubber band expanding mechanism and a second position on the movement trajectory of the rubber band attaching operation mechanism, so as to transfer the rubber band of the rubber band expanding mechanism to the rubber band attaching operation mechanism. The long-sleeved glove feeding mechanism is designed to correspond with the elastic band insertion mechanism. Specifically, the long-sleeved glove feeding mechanism includes two sets of vacuum suction heads, one above the other. These suction heads hold the upper and lower sides of the long-sleeved glove and open them, thereby positioning the cuffs of the long-sleeved glove so that the two support plates 12 can be inserted more accurately into the cuffs. For the structure and operation method of the elastic band insertion mechanism, please refer to Embodiment 1 or Embodiment 2 above.

[0047] The output end of the elastic band operating mechanism corresponds to the sealing mechanism, which fixes the cuffed edge by means of heat sealing, thereby completing the assembly of the long-sleeved glove and the elastic band.

[0048] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which shall be within the scope of protection of the invention.

Claims

1. A mechanism for attaching rubber bands, characterized in that: The device comprises a first part and a second part that are movable relative to each other in a front-rear direction. The first part includes an opening and closing actuator and two sets of opening and closing units. Each set of opening and closing units includes a support plate, a flange plate, a flange actuator, and a side plate. The support plates of the two sets of opening and closing units are arranged opposite each other on the left and right sides, and the outer side wall of the support plate is provided with a notch. The flange plate is fitted onto the support plate. The flange actuator drives the flange plate to move back and forth relative to the support plate. The side plate is located outside the flange plate. The outer side wall of the side plate is provided with a groove extending in the front-rear direction and penetrating to its front side. The opening and closing actuator drives the two sets of opening and closing units to move the two sets of opening and closing units closer together or separate from each other. The second part is located in front of the first part. The second part has a hook plate located outside the side plate and corresponding to the groove.

2. The operating mechanism for attaching rubber bands according to claim 1, characterized in that: The flange driver is mounted on the support plate; the side plate is assembled on the support plate.

3. The operating mechanism for attaching rubber bands according to claim 1, characterized in that: The side plate includes a side plate body and a protruding post disposed at the front end of the side plate body. The side plate body forms a limiting end face on the periphery of the protruding post. The groove is disposed on the outer side wall of the side plate body and the protruding post and extends to the front side of the protruding post.

4. The operating mechanism for attaching rubber bands according to claim 1, characterized in that: The flange has a "U"-shaped flange, which includes an upper side, a lower side, and a connecting side connecting the upper side and the lower side. The upper side corresponds to the upper side of the support plate, the lower side corresponds to the lower side of the support plate, and the connecting side corresponds to the outer side wall of the support plate.

5. The operating mechanism for attaching rubber bands according to claim 1, characterized in that: The opening and closing actuator includes a pusher, an inclined guide plate, and a tension spring. The tension spring is connected between the support plates of the two sets of opening and closing units. The inclined guide plate is disposed between the support plates of the two sets of opening and closing units and forms an inclined guide fit. The pusher drives and connects to the inclined guide plate.

6. The operating mechanism for attaching rubber bands according to claim 1, characterized in that: The first part is movable back and forth, the second part is fixed in the back and forth direction, the first part is disposed on a guide rail extending in the back and forth direction, and further includes a translation driver, which drives the first part to move back and forth along the guide rail.

7. The operating mechanism for attaching rubber bands according to claim 1, characterized in that: It also includes a top abutment portion, which is disposed below the first portion. The top abutment portion has a liftable and movable top abutment plate, which rises and abuts against the lower side of the support plate.

8. The operating mechanism for attaching rubber bands according to claim 1, characterized in that: The top abutment portion is assembled onto the second portion.

9. A method for inserting a rubber band into the cuff of a product, characterized in that, The operating mechanism for attaching rubber bands according to any one of claims 1 to 8 includes the following steps: S1, place the rubber band on the movement trajectory of the first or second part; S2, drive the first or second part closer to each other. During this process, the support plates of the two sets of opening and closing units pass through the rubber band and are inserted into the product cuff, and the rubber band is transferred to the side plate of the two sets of opening and closing units. S3, the opening and closing driver drives the two sets of opening and closing units to expand outward, so that the product cuff is opened by the support plates of the two sets of opening and closing units, and so that the hook plate of the second part is inserted into the groove of the side plate. S4, drive the first or second part away from each other, the rubber band is driven by the hook plate to detach from the side plate and fit around the outer perimeter of the product and get into the notch of the support plate; S5, the flange driver drives the flange plate to move forward, so that the flange plate pushes the cuff of the product forward. As the product part at the notch position is tightened, when the cuff of the product passes the notch position of the support plate, it forms an outward flange and wraps the elastic band.

10. The method for inserting a rubber band into the cuff of a product according to claim 9, characterized in that: Between step S4 and step S5, there is also step S4-5, in which the opening and closing driver drives the two sets of opening and closing units to move inward a certain distance.

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