Deviation correcting device

Abstract

The utility model relates to the technical field of sewing machine manufacturing, in particular to a deviation rectifying device which comprises a workbench and a cutting head installed on the workbench. The working table comprises a mounting table top and a supporting table top, the cutting head is fixed on the mounting table top, and a machine needle on the cutting head is arranged on one side deviating from the supporting table top; the supporting table top is used for locally supporting materials, and the outer contour of the supporting table top is in an arc shape. The deviation rectifying mechanism comprises a fixing plate, the fixing plate is fixed to the mounting table top, the side face, close to the supporting table top, of the fixing plate is sequentially and fixedly connected with a first driving mechanism and a side plate, the bottom face, close to the supporting table top, of the side plate is provided with a pressing plate, and the pressing plate is far away from or close to the supporting table top along with the first driving mechanism; the shifting block is used for abutting against materials and shifting the materials; and the photoelectric sensor is arranged on the fixing plate, and emitted light vertically irradiates the supporting table top.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machine manufacturing, and particularly relates to a deviation rectifying device. Background Art

[0002] With the continuous progress of industrial automation technology, various automated production equipment has been widely used in the textile industry. As a branch of sewing machines, edge binding machines have also experienced a development process from large and bulky to lightweight and flexible, and from single-function to multi-function. There are various types of edge binding machines on the market currently, such as carpet edge binding machines, blanket edge binding machines, car seat cushion edge binding machines, etc., covering multiple industrial fields. However, in the field of bath towel production, although some automated edge binding equipment has been put into use, there are still many deficiencies. When the existing bath towel edge binding machines perform edge binding operations, they usually need to rotate and move the bath towel to enable the sewing machine to perform edge binding sewing on the four sides of the bath towel. Due to the large size of the bath towel, during this process, due to various factors such as material characteristics, equipment accuracy, and operating environment, the problem that the edge of the bath towel deviates from the predetermined trajectory often occurs. The deviation of the bath towel not only causes uneven edge binding, affecting product quality, but may also cause the production line to stop for adjustment, reducing production efficiency, resulting in poor edge binding quality, making it difficult to ensure the consistency and stability of edge binding quality, and affecting the overall quality of the product.

[0003] Therefore, this application has developed a deviation rectifying device to solve the problems existing in the prior art. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a deviation rectifying device to solve the problems of uneven edge binding and poor edge binding quality caused by the deviation of materials from the predetermined trajectory during the edge binding process in the prior art.

[0005] The technical solution of the utility model is: a deviation rectifying device, comprising:

[0006] A workbench and a cutting head installed on the workbench; the workbench includes an installation tabletop and a support tabletop, the cutting head is fixed on the installation tabletop, and the sewing needle on the cutting head is arranged on one side biased towards the support tabletop; the support tabletop is for partial support of the material, and the outer contour of the support tabletop is arc-shaped;

[0007] A deviation rectifying mechanism, the deviation rectifying mechanism includes a fixing plate, the fixing plate is fixed on the installation tabletop, a first driving mechanism and a side plate are sequentially fixedly connected to the side surface of the fixing plate close to the support tabletop, a pressing plate is arranged on the bottom surface of the side plate close to the support tabletop, the pressing plate moves away from or close to the support tabletop along with the first driving mechanism, and a rotating mechanism is further arranged on the side plate for abutting against the material and causing the material to deviate;

[0008] The photoelectric sensor is arranged on the fixing plate and emits light vertically onto the supporting table.

[0009] Preferably, the rotating mechanism includes a second driving mechanism and a rotating part, the second driving mechanism is fixed on the side plate, the rotating part is connected to the driving end of the second driving mechanism, the pressing plate is arranged along the material moving direction and is located below the rotating part, a through hole is provided on the pressing plate and corresponds to the position of the rotating part, and the rotating part contacts the material through the through hole.

[0010] Preferably, the rotating part moves closer to or farther away from the supporting table surface along with the second driving mechanism, and an outer contour of the rotating part is arc-shaped.

[0011] Preferably, when the rotating part contacts the material, the material is tangent to the outer contour of the rotating part, and the axis at the tangent position is set at an angle to the moving direction of the material.

[0012] Preferably, the line connecting the light emitted by the photoelectric sensor and the needle on the cutting head is parallel to the moving direction of the material, and when the material is not offset, the line coincides with the edge of the material.

[0013] Preferably, the pressing plate includes a pressing portion and a guiding portion, the guiding portion corresponds to the position of the rotating portion, the side of the guiding portion close to the fixed plate is in the same straight line as the cutting head, and the pressing portion is away from the rotating portion and completely covers the material.

[0014] Compared with the prior art, the advantages of the utility model are:

[0015] (1) The photoelectric sensor can quickly detect whether the material is offset during the hemming process, thereby improving the response speed and production efficiency;

[0016] (2) The pressure plate is pressed on the material to prevent the material from further deviating from the predetermined trajectory;

[0017] (3) The rotating part and the material are in contact with each other, and the material continues to move for edge wrapping. The movement of the material drives the rotating part to rotate and moves the material in the direction of the predetermined trajectory to ensure the uniformity and quality of the edge wrapping. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0019] Figure 1 It is a structural schematic diagram of the deviation correction mechanism of the utility model;

[0020] Figure 2 It is a top view of the deviation-correcting mechanism of the utility model;

[0021] Figure 3 Schematic structural diagram of a deviation rectifying device according to the present utility model;

[0022] Figure 4 Top view of the installation position of the deviation rectifying mechanism and the workbench according to the present utility model;

[0023] Figure 5 Side view of the installation position of the deviation rectifying mechanism and the workbench according to the present utility model.

[0024] Wherein: 1. Workbench; 11. Installation tabletop; 12. Support tabletop; 2. Cutting head; 3. Deviation rectifying mechanism; 31. Fixed plate; 32. First driving mechanism; 33. Side plate; 34. Pressing plate; 341. Pressing part; 342. Guiding part; 35. Rotating mechanism; 351. Second driving mechanism; 352. Rotating part; 353. Through hole; 36. Photoelectric sensor. Specific embodiments

[0025] The following combines specific embodiments to further elaborate on the content of the present utility model in detail:

[0026] As Figures 1 - 3 shown, a deviation rectifying device includes a workbench 1, a deviation rectifying mechanism 3, a photoelectric sensor 36, and a cutting head 2 installed on the workbench 1. The workbench 1 includes an installation tabletop 11 and a support tabletop 12. The cutting head 2 is fixed on the installation tabletop 11. The sewing needle on the cutting head 2 is arranged on one side biased towards the support tabletop 12. The material is placed on the support tabletop, and the hemming is completed through the sewing needle on the cutting head 2; the support tabletop 12 provides partial support for the material. The outer contour of the support tabletop 12 is arc-shaped. The deviation rectifying mechanism 3 includes a fixed plate 31, a pressing plate 34, a first driving mechanism 32, a side plate 33, and a rotating mechanism 35. The fixed plate 31 is fixed on the installation tabletop 11, and the side of the fixed plate 31 close to the support tabletop 12 is sequentially fixedly connected with the first driving mechanism 32 and the side plate 33. The pressing plate 34 is arranged on the bottom surface of the side plate 33 close to the support tabletop 12. When hemming the material, part of the material drops along the edge of the support tabletop 12. When the material moves, under the action of gravity, the material cannot move along the hemming path, which will affect the hemming effect and quality. At this time, the reflected light vertically irradiated by the photoelectric sensor 36 on the support tabletop 12 is received by the photoelectric sensor 36, and no material is detected. The first driving mechanism 32 is controlled to move, so that the pressing plate 34 moves to the surface of the material to prevent the material from further deviating.

[0027] In this embodiment, the rotating mechanism 35 includes a second driving mechanism 351 and a rotating part 352. The second driving mechanism 351 is fixed on the side plate 33 and moves together with the side plate 33. The rotating part 352 is connected to the driving end of the second driving mechanism 351. The first driving mechanism 32 drives the side plate 33 to move, and the pressing plate 34 moves away from or closer to the material together with the side plate 33. When the material is offset, the first driving mechanism 32 drives the pressing plate 34 to press the material to ensure that the material will not be further offset. When the material is not offset, the pressing plate 34 can also press down the material to keep the material stable during the edge wrapping process and prevent the quality and effect of the edge wrapping from being affected due to movement or misalignment.

[0028] Further, the pressing plate 34 is arranged along the moving direction of the material and extends below the rotating abutting part. And the pressing plate 34 is provided with a through hole 353, and the position of the through hole 353 corresponds to the position of the rotating part 352. The first driving mechanism 32 drives the pressing plate 34 to press on the material, and the second driving mechanism 351 drives the rotating part 352 to pass through the through hole 353 to contact and abut against the material. The material continues to move and drives the rotating part 352 to rotate. The rotation and friction of the rotating part 352 cause the material to move towards the direction close to the cutting head 2, so that the side of the material in the edge wrapping is a straight line. Among them, the outer contour of the rotating part 352 is arc-shaped, which can increase the contact area and friction force with the material, and can adapt to the surfaces of different materials, and it is easier to move the material to make the material return to the position before the offset.

[0029] Further, when the rotating part 352 contacts the material, the material is tangent to the outer contour of the rotating part 352, and the axis where the tangent position is located is arranged at an angle with the moving direction of the material. Only when the force is perpendicular to the moving direction of the material can the material return to the position before the offset and move along the originally set path. The angle is set to prevent the moving direction of the material from being parallel to the rotating direction of the rotating part 352, resulting in a change in the path, accelerating or decelerating the movement of the material, resulting in a mismatch with the edge wrapping speed of the cutting head 2, and at the same time, it is also impossible to correct the offset material, seriously affecting the edge wrapping quality and edge wrapping efficiency. It also prevents the moving direction of the material from being perpendicular to the rotating direction, resulting in the inability to rotate the rotating part 352 when the material moves, and thus unable to play the function of correcting the deviation.

[0030] Further, as Figures 4 - 5 shown, the photoelectric sensor 36 is arranged on the fixed plate 31 and close to the feeding position, and cooperates with the deviation correction device to complete the deviation correction of the material. The light emitted by the photoelectric sensor 36 is on the same straight line as the sewing needle of the cutting head 2. When the material is not offset, the edge of the material coincides with this straight line. Therefore, the photoelectric sensor 36 can timely judge whether the material is offset through the reflected light, so that the pressing plate 34 and, greatly improve the quality and efficiency of the edge wrapping.

[0031] Among them, the pressing plate 34 includes a pressing portion 341 and a guiding portion 342. The guiding portion 342 corresponds to the rotating portion 352 in position. The side surface of the guiding portion 342 close to the fixed plate 31 is on the same straight line as the cutting head 2. The pressing portion 341 is away from the rotating portion 352 and completely covers the material. The pressing portion 341 ensures that the material remains stable during the edge wrapping process and will not affect the quality and effect of edge wrapping due to movement or misalignment. By applying appropriate pressure, the pressing portion 341 prevents the material from moving randomly, ensures the edge wrapping is flat, and can eliminate wrinkles and unevenness that may occur during the edge wrapping process. The guiding portion 342 is used to guide the edge wrapping material to move along a predetermined trajectory, ensuring the edge wrapping position is accurate and error-free, and avoiding the occurrence of deviation and misalignment.

[0032] The implementation principle of this embodiment:

[0033] When edge wrapping the material, the material is placed on the workbench 1, and part of the material hangs down from the edge of the workbench 1. The side of the material is edge wrapped by the cutting head 2. When the material deviates, the photoelectric sensor 36 does not detect the material and sends signals to the first driving mechanism 32 and the second driving mechanism 351. The first driving mechanism 32 drives the pressing plate 34 to press on the material to prevent the material from continuing to deviate. At the same time, the second driving mechanism 351 drives the rotating portion 352 to pass through the through hole 353 and abut against the material. The material drives the rotating portion 352 to rotate during the movement, so that the material is stressed in a direction perpendicular to the moving direction, causing the material to move towards the cutting head 2 side, so that the side of the material corresponds to the cutting head 2 and is always on the same straight line, thereby ensuring the quality of edge wrapping.

[0034] The above embodiments are only used to illustrate the technical concept and characteristics of the present invention. The purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the protection scope of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention.

Claims

1. A deviation rectifying device, characterized in that, Comprising: A workbench (1) and a cutting head (2) installed on the workbench (1); the workbench (1) includes an installation tabletop (11) and a support tabletop (12), the cutting head (2) is fixed on the installation tabletop (11), and the sewing needle on the cutting head (2) is arranged on one side biased towards the support tabletop (12); the support tabletop (12) is for partial support of the material, and the outer contour of the support tabletop (12) is arc-shaped. A deviation rectifying mechanism (3), the deviation rectifying mechanism (3) includes a fixing plate (31), the fixing plate (31) is fixed on the installation tabletop (11), a first driving mechanism (32) and a side plate (33) are sequentially fixedly connected to the side surface of the fixing plate (31) close to the support tabletop (12), a pressing plate (34) is arranged on the bottom surface of the side plate (33) close to the support tabletop (12), the pressing plate (34) moves away from or close to the support tabletop (12) along with the first driving mechanism (32), and a rotating mechanism (35) is further arranged on the side plate (33) for abutting against the material and causing the material to deviate. An optoelectronic sensor (36) is arranged on the fixing plate (31), and the emitted light is perpendicularly irradiated on the support tabletop (12).

2. The deviation rectifying device according to claim 1, characterized in that: The rotating mechanism (35) includes a second driving mechanism (351) and a rotating part (352), the second driving mechanism (351) is fixed on the side plate (33), the rotating part (352) is connected to the driving end of the second driving mechanism (351), the pressing plate (34) is arranged along the moving direction of the material and is located below the rotating part (352), a through hole (353) is arranged on the pressing plate (34) and corresponds to the position of the rotating part (352), and the rotating part (352) passes through the through hole (353) to contact the material.

3. The deviation rectifying device according to claim 2, characterized in that: The rotating part (352) moves close to or away from the support tabletop (12) along with the second driving mechanism (351), and the outer contour of the rotating part (352) is arc-shaped.

4. A deviation rectifying device according to claim 3, characterized in that: When the rotating part (352) contacts the material, the material is tangent to the outer contour of the rotating part (352), and the axis where the tangent position is located is arranged at an angle with the moving direction of the material.

5. The deviation rectifying device according to claim 1, characterized in that: The connection line between the light emitted by the optoelectronic sensor (36) and the sewing needle on the cutting head (2) is parallel to the moving direction of the material. When the material does not deviate, the connection line coincides with the edge of the material.

6. The deviation rectifying device according to claim 2, characterized in that: The pressing plate (34) includes a pressing part (341) and a guiding part (342), the guiding part (342) corresponds to the position of the rotating part (352), the side surface of the guiding part (342) close to the fixing plate (31) is on the same straight line as the cutting head (2), the pressing part (341) is away from the rotating part (352) and completely covers the material.

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