Cloth tightening and nailing device of automatic picture tightening machine

Abstract

The cloth tightening and nailing device of the automatic picture tightening machine comprises a machine frame, a cloth tightening mechanism and a nailing mechanism, the cloth tightening mechanism and the nailing mechanism are arranged on the two sides of the machine frame respectively, the cloth tightening mechanism comprises an installation support and a clamping assembly arranged on the installation support, and mechanical sliding rails are arranged at the front end and the rear end of the upper portion of the first machine frame respectively. The sliding direction of the mechanical sliding rail is perpendicular to the feeding direction of the first cloth stretching and nailing device, the mechanical sliding rail comprises an installation base electrically connected with the control mechanism, the front end and the rear end of the installation support are arranged on the installation base, and the installation base slides along the mechanical sliding rail so as to drive the clamping assemblies on the two sides to slide left and right. By the adoption of the technical scheme, after the clamping assemblies clamp canvas on the two sides, the control mechanism drives the clamping assemblies on the two sides to move inwards through the mounting bases, the canvas and a picture frame are further tightened, follow-up nailing is more uniform, and the quality of finished products is higher; the applicability is improved, numerical control adjustment is achieved, accuracy is high, operation is easy, use is convenient, and efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of frameless painting processing technology, specifically to a fabric stretching and nailing device for an automatic painting stretching machine. Background Technology

[0002] Frameless paintings, as the name suggests, are paintings without an outer frame, representing a modern decorative trend. By reducing the cost of the outer frame, they are more economical, possess a greater sense of originality, and better align with modern aesthetic preferences.

[0003] Existing canvas rigging devices cannot adapt to different sized frames and do not clamp the canvas tightly enough, causing the canvas to easily fall off when stretched, directly affecting the effectiveness of the rigging. Utility Model Content

[0004] Based on the above problems, the purpose of this utility model is to provide a fabric stretching and nailing device for an automatic stretching machine.

[0005] To address the above problems, the following technical solution is provided: A fabric stretching and nailing device for an automatic fabric stretching machine, comprising a frame, a fabric stretching mechanism and a nailing mechanism respectively disposed on both sides of the frame, wherein the fabric stretching mechanism includes a mounting bracket and clamping components disposed on the mounting bracket, and mechanical slide rails are respectively disposed at the front and rear ends of the upper part of the first frame, wherein the sliding direction of the mechanical slide rails is perpendicular to the feeding direction of the first fabric stretching and nailing device, and the mechanical slide rails include mounting seats electrically connected to a control mechanism, wherein the front and rear ends of the mounting brackets are respectively disposed on the mounting seats, and the mounting seats slide along the mechanical slide rails, thereby driving the clamping components on both sides to slide left and right respectively.

[0006] By adopting the above technical solution, the canvas (which can also be drawing paper, and is not limited to any particular material; for ease of description, it will be referred to as canvas below; canvas tensioning refers to the action of tightening and nailing the two sides of the canvas, not to limiting the material of the canvas) is clamped by the clamping components. After the clamping components hold the canvas on both sides, the control mechanism drives the clamping components on both sides to move inward through the mounting base, so that the canvas and the frame are further tightened, making the subsequent nailing more even and the finished product of higher quality. At the same time, the initial distance between the mounting bases set by the control device varies depending on the size of the frame, and the tensioning sliding distance of the mounting base varies depending on the size of the canvas, resulting in a better tensioning effect and greatly improving the applicability of the equipment. Compared with manual adjustment and CNC adjustment, it has high precision, simple operation, convenient use, and high efficiency.

[0007] The utility model further includes: a fixed clamping plate fixedly installed on the outside of the mounting bracket, a movable clamping plate hinged to the fixed clamping plate, and a driving cylinder for driving the movable clamping plate. The movable clamping plate includes a first hinge portion for hinged connection with the fixed clamping plate and a movable clamping portion for clamping the drawing paper. The first hinge portion and the movable clamping portion are arranged in a "7" shape. A second hinge portion hinged to the driving cylinder is also provided between the first hinge portion and the movable clamping portion.

[0008] By adopting the above technical solution, compared with the existing parallel clamping method which is prone to loosening and slippage, this technical solution uses a hinge, which has a larger range of rotation. The fixed clamping plate is set on the outside of the mounting bracket, and the movable clamping plate is set in a "7" shape on the inside of the fixed clamping plate. Its force point is located at the lower end of the "7" shaped movable clamping plate, making it less likely for the canvas to slip. Moreover, when the canvas is erected with the folding mechanism, the fixed clamping plate will inevitably be set on the outside of the canvas, preventing the canvas from bending outwards due to gravity if it is too long. The movable clamping plate rotates from the inside to the outside to clamp, which can avoid creases at the ends of the canvas and further improve the quality of the finished product.

[0009] The utility model is further provided with the following: the other end of the movable clamping part opposite to the second hinge part is provided with a mounting groove, and a clamping strip is provided in the mounting groove.

[0010] By adopting the above technical solution and setting clamping strips, the friction of the clamping surface is further increased, thus preventing slippage.

[0011] The utility model further includes: the fixed clamping plate includes a mounting part connected to the mounting bracket, a connecting part hinged to the movable clamping plate, and a fixed clamping part for clamping the drawing paper, wherein a pressure plate is provided on the side of the fixed clamping part opposite to the movable clamping part.

[0012] By adopting the above technical solution and setting a clamping plate, the friction of the clamping surface is further increased, thus preventing slippage.

[0013] The utility model is further configured such that: the second hinge part is disposed in the middle of the movable clamping plate, and the two ends of the connecting part corresponding to one side of the movable clamping plate are respectively provided with hinge grooves, the first hinge part is respectively inserted into the hinge groove and is provided with hinge holes adapted to the hinge shaft, and the first hinge part is symmetrically arranged with the second hinge part as the axis.

[0014] By adopting the above technical solution, the three points of the first hinge and the second hinge are triangularly distributed. When the movable clamping plate is subjected to force by the driving cylinder, the rotational stability is high. The hinge groove is provided, which not only connects the movable clamping plate through the hinge shaft, but also rotates along the hinge groove, further limiting the movable clamping plate and improving the clamping stability.

[0015] The utility model is further configured such that: the movable clamping plate is disposed below the mounting bracket, the driving cylinder is disposed above the mounting bracket, the mounting bracket is provided with a through hole corresponding to the position of the second hinge part, and the driving rod of the driving cylinder passes through the through hole and is hinged to the second hinge part.

[0016] By adopting the above technical solution, the structure is more compact. The drive rod passes through the through hole and is hinged to the second hinge part. The drive cylinder drives the movable clamping plate to rotate around the hinge hole as the axis through the drive rod. The stroke is short and the stability is high.

[0017] The utility model is further provided with the following feature: multiple clamping components are arranged side by side on the mounting bracket.

[0018] By adopting the above technical solution, compared to a single clamping assembly that is longer, setting multiple sets of clamping assemblies side by side has the following advantages: First, if a single clamping assembly malfunctions, the other clamping assemblies can still work normally, improving the stability of use. Second, the force is more evenly distributed, and the clamping strength is higher.

[0019] The utility model is further provided with a lifting frame located below the mechanical slide rail.

[0020] By adopting the above technical solution, the vertical position of the entire fabric stretching mechanism and nailing mechanism can be adjusted to adapt to frames of different thicknesses, thus making it more versatile.

[0021] The utility model further includes the following: the nailing mechanism includes a nailing component, a mounting frame, and a servo motor. The two ends of the mounting frame are connected to the mounting base and are arranged parallel to the mounting bracket. The nailing component is slidably mounted on the mounting frame. The servo motor drives the nailing component to slide along the mounting frame and approach the clamping component to nail the folded drawing paper and the picture frame.

[0022] By adopting the above technical solution, the servo motor drives the nailing component to slide along the mounting frame and close to the clamping component to nail the folded drawing paper and frame in multiple places. The nailing is automated, with uniform, precise and beautiful nailing intervals. The mounting frame is set on the mounting base, and the fabric stretching mechanism is also set on the mounting base. The fabric stretching mechanism slides along the mechanical slide rail to drive the nailing mechanism to move, ensuring that the nailing mechanism is close to the clamping component to nail and avoiding nailing deviation.

[0023] The utility model is further configured such that the nailing components are in two sets, and the spacing between the nailing components is adapted to half the length of the picture frame.

[0024] By adopting the above technical solution, when the picture frame size is large, the two sets of nailing components can nail simultaneously, further improving the nailing efficiency. Attached Figure Description

[0025] Figure 1 This is a perspective view of the present invention.

[0026] Figure 2 This is a partially enlarged view of the present invention.

[0027] Figure 3 This is a perspective view of the clamping assembly of this utility model.

[0028] Figure 4 This is a side view of the clamping assembly of this utility model.

[0029] The labels in the diagram mean: 1. Frame, 2. Fabric stretching mechanism, 21. Mounting bracket, 22. Clamping assembly, 221. Fixed clamping plate, 2211. Mounting part, 2212. Connecting part, 2213. Fixed clamping part, 2214. Pressure plate, 2215. Hinge groove, 222. Movable clamping plate, 2221. First hinge part, 2222. Movable clamping part, 2223. Second hinge part, 2224. Mounting slot, 2225. Clamping strip, 223. Hinge shaft, 23. Mechanical slide rail, 231. Mounting base, 3. Nailing mechanism, 31. Nailing assembly, 32. Mounting frame, 33. Servo motor, 4. Drive cylinder, 41. Drive rod, 5. Lifting frame. Detailed Implementation

[0030] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0031] Reference Appendix Figure 1-4 An automatic fabric stretching and nailing device for a fabric stretching machine includes a frame 1, a fabric stretching mechanism 2 and a nailing mechanism 3 respectively disposed on both sides of the frame 1. The fabric stretching mechanism 2 includes a mounting bracket 21 and a clamping assembly 22 disposed on the mounting bracket 21. Mechanical slide rails 23 are respectively disposed at the front and rear ends of the upper part of the first frame 1. The sliding direction of the mechanical slide rails 23 is perpendicular to the feeding direction of the first fabric stretching and nailing device. The mechanical slide rails 23 include mounting seats 231 electrically connected to a control mechanism. The front and rear ends of the mounting bracket 21 are respectively disposed on the mounting seats 231. The mounting seats 231 slide along the mechanical slide rails 23, thereby driving the clamping assemblies 22 on both sides to slide left and right respectively.

[0032] This embodiment further includes: the clamping assembly 22 includes a fixed clamping plate 221 fixedly installed on the outside of the mounting bracket 21, a movable clamping plate 222 hinged to the fixed clamping plate 221, and a driving cylinder 4 for driving the movable clamping plate 222. The movable clamping plate 222 includes a first hinge portion 2221 for hinged connection with the fixed clamping plate 221 and a movable clamping portion 2222 for clamping the drawing paper. The first hinge portion 2221 and the movable clamping portion 2222 are arranged in a "7" shape. A second hinge portion 2223 hinged to the driving cylinder 4 is also provided between the first hinge portion 2221 and the movable clamping portion 2222.

[0033] In this embodiment, the movable clamping part 2222 is provided with a mounting slot 2224 at the other end opposite to the second hinge part 2223, and a clamping strip 2225 is provided in the mounting slot 2224.

[0034] In this embodiment, the fixed clamping plate 221 is further provided with a mounting part 2211 connected to the mounting bracket 21, a connecting part 2212 hinged to the movable clamping plate 222, and a fixed clamping part 2213 for clamping the drawing paper. A pressure piece 2214 is provided on the side of the fixed clamping part 2213 opposite to the movable clamping part 2222.

[0035] In this embodiment, the second hinge portion 2223 is disposed in the middle of the movable clamping plate 222. The connecting portion 2212 is provided with hinge grooves 2215 at both ends of one side of the movable clamping plate 222. The first hinge portion 2221 is inserted into the hinge groove 2215 and is provided with hinge holes adapted to the hinge shaft 223. The first hinge portion 2221 is symmetrically arranged with the second hinge portion 2223 as the axis.

[0036] In this embodiment, the movable clamping plate 222 is disposed below the mounting bracket 21, the driving cylinder 4 is disposed above the mounting bracket 21, and the mounting bracket 21 is provided with a through hole corresponding to the position of the second hinge part 2223. The driving rod 41 of the driving cylinder 4 passes through the through hole and is hinged to the second hinge part 2223.

[0037] In this embodiment, multiple clamping components 22 are arranged side by side on the mounting bracket 21.

[0038] In this embodiment, a lifting frame 5 is further provided below the mechanical slide rail 23.

[0039] This embodiment further includes the following configuration: the nailing mechanism 3 includes a nailing component 31, a mounting frame 32, and a servo motor 33. The two ends of the mounting frame 32 are connected to the mounting base 231 and are arranged parallel to the mounting bracket 21. The nailing component 31 is slidably mounted on the mounting frame 32. The servo motor 33 drives the nailing component 31 to slide along the mounting frame 32 and approach the clamping component 22 to nail the folded drawing paper and the frame.

[0040] In this embodiment, the nailing components 31 are further configured in two sets, and the spacing between the nailing components 31 is adapted to half the length of the picture frame.

[0041] In the present invention, the driving methods of the servo motor 33 and cylinder described are not limited to a single driving method, and the possibility of using other driving methods such as electric push rods is not excluded.

[0042] In the description of this utility model, it should be noted that the terms "middle," "upper," "lower," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component 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 utility model. "Inner" and "outer" are based on the central axis of the frame 1, with the side closer to the central axis being the inner side, and the opposite side being the outer side. "Front" and "rear" are based on the feeding direction of the frame 1, with the loading direction being the front end and the moving direction being the rear end, meaning that both the frame and the canvas move from the front end to the rear end of the frame 1. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The aforementioned "between" does not only refer to orientation or position, but also includes the interaction between different parts.

[0043] Although this document frequently uses terms such as frame 1, fabric stretching mechanism 2, mounting bracket 21, clamping assembly 22, fixing clamping plate 221, mounting part 2211, connecting part 2212, fixing clamping part 2213, pressure plate 2214, hinge groove 2215, movable clamping plate 222, first hinge part 2221, movable clamping part 2222, second hinge part 2223, mounting slot 2224, clamping strip 2225, hinge shaft 223, mechanical slide rail 23, mounting base 231, nailing mechanism 3, nailing assembly 31, mounting frame 32, servo motor 33, drive cylinder 4, and drive rod 41, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A fabric stretching and nailing device for an automatic stretching machine, characterized in that: The device includes a frame, a fabric stretching mechanism and a nailing mechanism respectively disposed on both sides of the frame. The fabric stretching mechanism includes a mounting bracket and clamping components disposed on the mounting bracket. Mechanical slide rails are respectively disposed at the front and rear ends of the top of the frame. The sliding direction of the mechanical slide rails is perpendicular to the feeding direction of the first fabric stretching and nailing device. The mechanical slide rails include mounting seats electrically connected to the control mechanism. The front and rear ends of the mounting brackets are respectively disposed on the mounting seats. The mounting seats slide along the mechanical slide rails, thereby driving the clamping components on both sides to slide left and right respectively.

2. The fabric stretching and nailing device for an automatic stretching machine according to claim 1, characterized in that: The clamping assembly includes a fixed clamping plate fixedly installed on the outside of the mounting bracket, a movable clamping plate hinged to the fixed clamping plate, and a driving cylinder for driving the movable clamping plate. The movable clamping plate includes a first hinge portion for hinged connection with the fixed clamping plate and a movable clamping portion for clamping drawing paper. The first hinge portion and the movable clamping portion are arranged in a "7" shape. A second hinge portion that is hinged to the driving cylinder is also provided between the first hinge portion and the movable clamping portion.

3. The fabric stretching and nailing device for an automatic stretching machine according to claim 2, characterized in that: The movable clamping part is provided with a mounting slot at the other end opposite to the second hinge part, and a clamping strip is provided in the mounting slot.

4. The fabric stretching and nailing device for an automatic stretching machine according to claim 2, characterized in that: The fixed clamping plate includes a mounting part connected to the mounting bracket, a connecting part hinged to the movable clamping plate, and a fixed clamping part for clamping the drawing paper. A pressure plate is provided on the side of the fixed clamping part opposite to the movable clamping part.

5. The fabric stretching and nailing device for an automatic stretching machine according to claim 4, characterized in that: The second hinge part is located in the middle of the movable clamping plate. The two ends of the connecting part corresponding to one side of the movable clamping plate are respectively provided with hinge grooves. The first hinge part is inserted into the hinge groove and is provided with hinge holes that are adapted to the hinge shaft. The first hinge part is symmetrically arranged with the second hinge part as the axis.

6. The fabric stretching and nailing device for an automatic stretching machine according to claim 2, characterized in that: The movable clamp is located below the mounting bracket, and the drive cylinder is located above the mounting bracket. The mounting bracket has a through hole corresponding to the position of the second hinge part, and the drive rod of the drive cylinder passes through the through hole and is hinged to the second hinge part.

7. The fabric stretching and nailing device for an automatic stretching machine according to claim 1, characterized in that: The mounting bracket is provided with multiple clamping components arranged side by side.

8. The fabric stretching and nailing device for an automatic stretching machine according to claim 1, characterized in that: A lifting frame is installed below the mechanical slide rail.

9. The fabric stretching and nailing device for an automatic stretching machine according to claim 1, characterized in that: The nailing mechanism includes a nailing component, a mounting frame, and a servo motor. The two ends of the mounting frame are connected to the mounting base and are arranged parallel to the mounting bracket. The nailing component is slidably mounted on the mounting frame. The servo motor drives the nailing component to slide along the mounting frame and approach the clamping component to nail the folded drawing paper and the frame.

10. The fabric stretching and nailing device for an automatic stretching machine according to claim 9, characterized in that: The nailing assembly consists of two sets.

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