Claw nailing machine for sofa production

Abstract

The utility model relates to a claw nailing machine for sofa production. The automatic nailing machine comprises a rack, a nailing assembly, a feeding device and a lower die and further comprises a servo positioning module, the servo positioning module comprises a base, a moving seat, a first servo driver, a servo traction assembly, a guide roller and a fabric winding roller, and the servo traction assembly is composed of two traction rollers and a second servo driver, the traction roller is also horizontally and rotationally assembled on the moving seat, the traction roller is parallel to the fabric winding roller and is perpendicular to the sliding direction of the moving seat, and the lower die is located in the area between the projection of the traction roller and the projection of the guide roller. The moving seat can drive the fabric to move left and right, the servo traction assembly can pull the fabric out of the fabric winding roller continuously, all positions, needing to be nailed, on the fabric can be efficiently and accurately moved to a nailing point position automatically through matched movement of the moving seat and the servo traction assembly, and therefore automatic positioning nailing can be achieved; and the device is suitable for the nailing process of large-area fabrics such as sofas.

Description

Technical Field

[0001] The utility model relates to a claw nail machine, in particular to a claw nail machine for sofa production. Background Art

[0002] The claw nail machine is a device specially used to firmly fix claw nails (also called rivets) on materials. It is widely used in industries such as clothing, shoes, leather goods, bags, accessories and handicrafts.

[0003] The working principle of the claw nail machine is usually to expand the claw of the claw nail through mechanical force or air pressure and lock it tightly on the material to achieve a firm connection. This connection method is not only beautiful, but also has high firmness and durability. The common claw nail machine consists of a frame, a nailing assembly arranged on the frame, a feeding device arranged on the frame, and a lower mold relatively fixed to the lower side of the nailing assembly. The feeding device is generally a vibrating plate. The use of a claw nail machine can greatly improve production efficiency, reduce manual operations, reduce production costs, and can achieve standardized and large-scale production. Therefore, it has been widely used in related industries.

[0004] However, the current claw nailing machine only has the function of automatic nailing, and it is necessary to manually hold the nailed material to adjust the position to control the nailing. This is not only difficult to improve production efficiency, but also prone to safety accidents. Workers' operation is also limited by the size of the material. In the sofa production industry, the fabric required for the sofa is relatively large, and the number of nails is large. The efficiency of manual assisted nailing is not only low, but also prone to nail position deviation. For this reason, it is urgent to develop a claw nailing machine with automatic fabric positioning. Summary of the invention

[0005] The utility model provides a claw nailing machine for sofa production, which solves the problems in the prior art that manual auxiliary nailing is inefficient and the position is easily offset.

[0006] The above technical problems of the utility model are mainly solved by the following technical solutions: A claw nail machine for sofa production, comprising a frame, a nailing assembly arranged on the frame, a feeding device arranged on the frame and a lower mold relatively fixed to the lower side of the nailing assembly, characterized in that: it also includes a servo positioning module, the servo positioning module comprises a base, a movable seat horizontally slidably arranged relative to the base, a first servo driver arranged on the base, a servo traction assembly arranged on the movable seat, a guide roller and a fabric winding roller, the guide roller and the fabric winding roller are both horizontally rotatably assembled on the movable seat and are parallel to each other, the servo traction assembly is composed of two traction rollers that are fitted to each other up and down and a second servo driver, the traction roller is also horizontally rotatably assembled on the movable seat, the traction roller is parallel to the fabric winding roller and perpendicular to the sliding direction of the movable seat, and the lower mold is located in the area between the projections of the traction roller and the guide roller.

[0007] The working method of the utility model is as follows: the fabric to be nailed is wound on the fabric winding roller, and then the fabric winding roller is assembled on the movable seat, and then the head of the fabric is passed around the guide roller and inserted between the two traction rollers, and then the first servo driver and the second servo driver need to be manually adjusted to move the first nailing position or the coordinate 0 point position on the fabric to just above the lower mold, and then the control system can automatically control the two servo drivers and the nailing assembly to work in combination, so as to achieve efficient and accurate nailing effect.

[0008] Furthermore, a brake assembly is provided on the movable seat and located at the lower side of the guide roller, and the brake assembly is composed of a cylinder, a lifting plate, and a brake block fixed on the lifting plate. When the servo traction assembly needs to pull the fabric, the brake assembly needs to be released, that is, the cylinder controls the lifting plate to descend; conversely, when the servo traction assembly stops, the cylinder controls the lifting plate to rise, so that the brake block presses the fabric against the guide roller, thereby fixing the fabric and ensuring that the fabric between the servo traction assembly and the guide roller is in a tensioned state.

[0009] Furthermore, the fabric winding roller is provided with a winding section, a limiting section at both ends of the winding section, and a mounting section outside the limiting section, and the mounting section is provided with a bearing; the movable seat is provided with two supporting sheets, and the supporting sheets are provided with an inclined opening groove, and the inner side of the opening groove is provided with a limiting portion that can form a limit with the limiting section, and the bearing is adapted to the size of the opening groove. In this way, the traction roller can be automatically inserted into the opening groove under the action of gravity, and when the fabric is withdrawn, the traction roller can be easily taken out of the opening groove, which has the effect of quick installation and disassembly.

[0010] Furthermore, circular baffles are provided at both ends of the winding section, and the circular baffles are used for positioning the fabric.

[0011] Therefore, compared with the prior art, the utility model has the following characteristics: 1. The movable seat of the utility model can drive the fabric to move left and right, and the servo traction assembly can pull the fabric out from the fabric winding roller continuously. Through the coordinated movement of the two, all positions on the fabric that need to be nailed can be automatically moved to the nailing points efficiently and accurately, thereby realizing automatic positioning nailing, which is suitable for the nailing process of large-area fabrics such as sofas. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Attached Figure 1 It is a structural schematic diagram of the utility model;

[0013] Attached Figure 2 Yes Figure 1 A magnified view of part A;

[0014] Attached Figure 3 It is a schematic diagram of the structure on the fabric winding roller;

[0015] Attached Figure 4 It is a structural schematic diagram of the utility model from another angle;

[0016] Attached Figure 5 It is a cross-sectional view of the utility model;

[0017] Attached Figure 6 Yes Figure 5 Enlarged view of part B. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] Example 1: See Figure 1 , Figure 4 and Figure 5A claw nail machine for sofa production includes a frame 10, a nailing assembly 20 arranged on the frame, a feeding device 30 arranged on the frame, and a lower mold 40 relatively fixed to the lower side of the nailing assembly, and also includes a servo positioning module, the servo positioning module includes a base 100, a moving seat 200 arranged to slide horizontally relative to the base, a first servo driver 300 arranged on the base, a servo traction assembly 400 arranged on the moving seat, a guide roller 500 and a fabric winding roller 600, the guide roller and the fabric winding roller are both horizontally rotatably assembled on the moving seat and are parallel to each other, the servo traction assembly is composed of two traction rollers 410 that are attached to each other up and down and a second servo driver 420, the outer side of the traction roller is provided with a rubber sleeve 411, the traction roller is also horizontally rotatably assembled on the moving seat, the traction roller is parallel to the fabric winding roller and perpendicular to the sliding direction of the moving seat, and the lower mold is located in the area between the projection of the traction roller and the guide roller.

[0021] The working method of this embodiment is: the fabric to be nailed is wound on the fabric winding roller, and then the fabric winding roller is assembled on the movable seat, and then the head of the fabric is passed around the guide roller and inserted between the two traction rollers, and then the first servo drive and the second servo drive need to be manually adjusted to move the first nailing position or the coordinate 0 point position on the fabric to just above the lower mold, and then the control system can automatically control the two servo drives and the nailing assembly to work in combination, so as to achieve efficient and accurate nailing effect.

[0022] See Figure 5 and Figure 6 A brake assembly 700 is also provided on the movable seat and located at the lower side of the guide roller. The brake assembly is composed of a cylinder 710, a lifting plate 720 and a rubber brake block 730 fixed on the lifting plate. When the servo traction assembly needs to pull the fabric, the brake assembly needs to be released, that is, the cylinder controls the lifting plate to descend; conversely, when the servo traction assembly stops, the cylinder controls the lifting plate to rise, so that the brake block presses the fabric against the guide roller, which has the effect of fixing the fabric and ensuring that the fabric between the servo traction assembly and the guide roller is in a tensioned state.

[0023] See Figure 2 and Figure 3 The fabric winding roller is provided with a winding section 610, a limiting section 620 at both ends of the winding section, and a mounting section 630 located outside the limiting section, and a bearing 640 is provided on the mounting section; the movable seat is provided with two supporting sheets 210, and an inclined opening groove 220 is provided on the supporting sheet, and a limiting portion 221 that can form a limit with the limiting section is provided on the inner side of the opening groove, and the bearing is adapted to the size of the opening groove. In this way, the traction roller can be automatically inserted into the opening groove under the action of gravity, and when the fabric is withdrawn, the fabric winding roller can be easily taken out of the opening groove, which has the effect of quick installation and disassembly.

[0024] See Figure 3Circular baffles 650 are provided at both ends of the winding section, and the circular baffles are used for positioning the fabric.

[0025] See Figure 4 A synchronous guide wheel 50 is coaxially provided on the same side of the two traction rollers, a synchronous belt 60 is connected between the two synchronous guide wheels, and the second servo drive is connected to any one of the traction rollers.

[0026] See Figure 1 and Figure 5 Two screw mounting plates 110 are fixed on the base, and two screws 120 are installed horizontally and parallelly between the two screw mounting plates. The two screws are of the same specification, and two screw nuts 230 are respectively sleeved on the two screws. The four screw nuts are fixedly connected to the bottom of the moving seat; synchronous guide wheels are coaxially provided on the same side of the screw, and a synchronous belt is connected between the two synchronous guide wheels. The first servo drive is connected to any one of the screws in transmission.

[0027] See Figure 5 A fabric guide plate 240 is provided on the movable seat and at the output side of the servo traction assembly, and two proximity sensors 250 facing the movable seat are also provided on the two screw mounting plates.

[0028] It is obvious to those skilled in the art that the utility model can be changed in many ways, and such changes are not considered to be out of the scope of the utility model. All such modifications obvious to those skilled in the art will be included in the scope of the claims.

Claims

1. A claw nailing machine for sofa production, comprising a frame, a nailing assembly arranged on the frame, a feeding device arranged on the frame, and a lower mold relatively fixed to the lower side of the nailing assembly, characterized in that: It also includes a servo positioning module, which includes a base, a movable base horizontally slidably arranged relative to the base, a first servo driver arranged on the base, a servo traction assembly arranged on the movable base, a guide roller and a fabric winding roller, wherein the guide roller and the fabric winding roller are both horizontally rotatably mounted on the movable base and are parallel to each other, the servo traction assembly is composed of two traction rollers that are attached to each other up and down and a second servo driver, the traction roller is also horizontally rotatably mounted on the movable base, the traction roller is parallel to the fabric winding roller and perpendicular to the sliding direction of the movable base, and the lower mold is located in the area between the projections of the traction roller and the guide roller.

2. The claw nail machine for sofa production according to claim 1, characterized in that: A brake assembly is also provided on the movable seat and located at the lower side of the guide roller. The brake assembly is composed of a cylinder, a lifting plate and a brake block fixed on the lifting plate.

3. The claw nail machine for sofa production according to claim 1 or 2, characterized in that: The fabric winding roller is provided with a winding section, limiting sections located at both ends of the winding section and a mounting section located outside the limiting section, and the mounting section is provided with a bearing; the movable seat is provided with two supporting plates, and the supporting plates are provided with inclined opening grooves, and the inner side of the opening groove is provided with a limiting portion that can form a limit with the limiting section, and the bearing is adapted to the size of the opening groove.

4. The claw nail machine for sofa production according to claim 3, characterized in that: Circular baffles are provided at both ends of the winding section.

5. The claw nail machine for sofa production according to claim 1, characterized in that: A synchronous guide wheel is coaxially arranged on the same side of the two traction rollers, a synchronous belt is connected between the two synchronous guide wheels, and the second servo driver is drivingly connected to any one of the traction rollers.

6. The claw nail machine for sofa production according to claim 1, characterized in that: Two screw mounting plates are fixed on the base, and two screws are installed horizontally and parallelly between the two screw mounting plates. The two screws are of the same specification, and two screw nuts are respectively sleeved on the two screws. The four screw nuts are fixedly connected to the bottom of the moving seat; synchronous guide wheels are coaxially provided on the same side of the screw, and a synchronous belt is connected between the two synchronous guide wheels. The first servo drive is connected to any one of the screws in terms of transmission.

7. The claw nail machine for sofa production according to claim 6, characterized in that: A fabric guide plate is provided on the movable seat and located at the output side of the servo traction component.

8. The claw nail machine for sofa production according to claim 6, characterized in that: Two proximity sensors facing the moving seat are also arranged on the two screw rod mounting plates.

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