Deviation correcting system and white ink digital pyrography production equipment

Abstract

The invention discloses a deviation rectifying system and white ink digital pyrography production equipment, and belongs to the technical field of film belt deviation rectifying, the deviation rectifying system comprises a driving device and a fixedly arranged collecting part, and the driving device is used for driving a film belt to move backwards; the collecting part is used for collecting the film belt, a screw shaft arranged in front of the collecting part is further included, threads on the surface of the screw shaft can make contact with the bottom face of the film belt, and the film belt can be driven to move in the left-right direction by rotating the threads so as to correct left-right deviation of the film belt and ensure that the film belt is neatly collected to the collecting part. According to the deviation rectifying system, the problems that an existing deviation rectifying device is large in size, the deviation rectifying capacity is limited by the stroke of the winding roller, and deviation of a finished product is only paid attention to are solved, the effects of reducing the equipment size and improving the deviation rectifying capacity are achieved, and the problem of deviation of the semi-finished product is effectively solved on the premise that the machining quality of the semi-finished product is not affected.

Description

Technical Field

[0001] The invention belongs to the technical field of film strip deviation correction, and in particular relates to a deviation correction system and white ink digital heat transfer production equipment. Background Art

[0002] During the winding process of the film tape, the film tape will often shift due to mechanical vibration, deformation of the film tape, friction between the film tape and the conveying mechanism, etc., resulting in uneven end surfaces of the rolled material, which in turn causes wrinkles or damage to the edges of the film tape during the transportation of the roll.

[0003] There is an existing correction device, which drives the winding roller to move horizontally in the left and right directions through a correction motor. However, the lateral movement of the entire winding roller often produces large mechanical vibrations, which reduces the stability of the machine body and aggravates the deviation of the film strip. In order to solve the above problems, the correction device can only add more stabilizing mechanisms or increase the weight of the machine body, so that the volume of the correction device is often large.

[0004] In addition, since the deviation of the film tape is uncertain and is limited by the width of the equipment, the winding roller is generally designed with a small effective stroke. Therefore, when the winding roller is at the limit of the stroke, if the film tape deviates, it cannot be corrected. If baffles are set on the left and right sides of the conveying mechanism (similar to the attached Figure 1 If the baffle shown is used to limit the movement of the film strip in the left and right directions, it may also cause the edge of the film strip to climb onto the baffle, resulting in wrinkles or damage to the edge of the film strip.

[0005] In addition, the winding roller is a forming device for the coiled material, and this technology is obviously more focused on solving the problem of finished product deviation when correcting the winding roller. However, in some industries, such as the white ink digital heat transfer production industry, the continuous film strip is continuously processed from semi-finished products to finished products as the conveying mechanism moves. Under this production mode, the film strip deviation occurs more frequently during the processing of semi-finished products, while the film strip deviation occurs relatively less frequently in finished products. This technology does not focus on solving the problem of semi-finished product deviation, and the use of this technical solution may affect the processing quality of semi-finished products, so this technology is not completely suitable for these industries.

[0006] Therefore, the existing technology needs to be improved and developed. Summary of the invention

[0007] The purpose of the present invention is to provide a correction system and white ink digital heat transfer production equipment, which solves the problems that the existing correction device is large in size, the correction ability is limited by the stroke of the winding roller, and only focuses on the offset with the finished product, so as to achieve the effect of reducing the size of the equipment and improving the correction ability, and effectively solve the problem of offset of semi-finished products without affecting the processing quality of the semi-finished products.

[0008] In the first aspect, the present invention provides a correction system, comprising a driving device and a fixed collecting part, wherein the driving device is used to drive the film tape to move backward; the collecting part is used to collect the film tape, and also comprises a spiral shaft arranged in front of the collecting part, the threads on the surface of the spiral shaft can contact the bottom surface of the film tape and by rotating the threads, the film tape can be driven to move in the left and right directions to correct the left and right deviation of the film tape and ensure that the film tape is neatly collected in the collecting part.

[0009] The correction system provided by the present invention utilizes the threads on the surface of the spiral shaft to drive the film tape to move left and right, so as to correct the deviation of the film tape. Compared with the existing correction device, the correction system of the present invention takes into account stability while being smaller in size and having stronger correction ability. It is more suitable for solving application scenarios where semi-finished products are offset.

[0010] Furthermore, it also includes a processing part fixedly arranged in front of the collecting part, a first spiral shaft is arranged between the processing part and the collecting part, and the membrane strip is divided into a semi-finished product located in front of the first spiral shaft and a finished product located behind the first spiral shaft by the first spiral shaft, the processing part is used to process the semi-finished product into a finished product; the collecting part is used to collect the finished product; the first spiral shaft is used to drive the semi-finished product to move in the left and right direction to correct the left and right deviation of the semi-finished product and ensure that the finished product is collected neatly in the collecting part.

[0011] Through the deviation correction function of the first spiral shaft, the film tape entering the collecting part can be ensured to be accurately positioned and finally neatly collected by the collecting part.

[0012] Furthermore, it also includes a processing part fixedly arranged in front of the collecting part, and a second spiral shaft is arranged in front of the processing part. The second spiral shaft is used to drive the membrane belt located in front of the second spiral shaft to move along the left and right directions to correct the left and right deviation of the membrane belt at this location.

[0013] This ensures the quality of the film processing by the processing department. In addition, the pre-correction also lays the foundation for the subsequent neat collection of the film.

[0014] Furthermore, the height of the highest position of the thread is greater than or equal to the height of the upper surface of the processing portion to prevent the film tape from squeezing the processing portion.

[0015] It can be ensured that when the thread drives the film belt to move left and right for deviation correction, the film belt can smoothly pass over the processing part, thereby avoiding squeezing the processing part.

[0016] Furthermore, it also includes a control device for performing the following steps: S1. Obtaining the film tape moving speed and thread inclination angle; S2. Calculate the correction error according to the film tape moving speed and the thread inclination angle; S3. Control the rotation of the screw shaft according to the correction error.

[0017] Furthermore, the collecting part is a winding device, which is used to wind up the film strip and make it into a coil; the spiral shaft is used to correct the left and right deviation of the film strip to make the end surface of the coil flat.

[0018] Furthermore, the collecting part is a cutting device, and the cutting device is used for cutting the film tape; the spiral shaft is used for correcting the left and right deviation of the film tape so that the cutting device can correctly cut the film tape.

[0019] In a second aspect, the present invention provides a white ink digital heat transfer production device, comprising the above-mentioned correction system.

[0020] Furthermore, it also includes an oven, which is used to heat the film tape; the correction system also includes a processing part fixedly arranged in front of the collecting part, the processing part is a heating device and is arranged in the oven, and a first spiral shaft is arranged between the processing part and the collecting part, and the first spiral shaft is used to correct the left and right deviation generated after the film tape is heated so that the film tape can be neatly collected in the collecting part.

[0021] Furthermore, it also includes a printer, which is used to print a pattern at a specified position of the film tape; the correction system also includes a processing part fixedly arranged before the collecting part, the processing part is a printing platform and is arranged in the printer, and a second spiral shaft is arranged in front of the printing platform, and the second spiral shaft is used to correct the left and right deviation of the film tape so that the printer can correctly print the pattern at the specified position of the film tape.

[0022] As can be seen from the above, the correction system of the present invention corrects the deviation of the film strip through a fixed-position spiral shaft, and the collecting part (such as the existing winding roller) is designed to be fixed in position, thereby avoiding the mechanical vibration caused by the lateral movement of the existing winding roller, thereby eliminating the existing stabilizing mechanism and effectively reducing the size of the fuselage; at the same time, it gets rid of the stroke limitation of the existing winding roller, and effectively improves the correction ability of the correction system; in addition, the spiral shaft is arranged in front of the collecting part, so when the film strip is processed as a semi-finished product, if the semi-finished product is offset, the spiral shaft can be used to correct the deviation, which will not affect the processing quality of the semi-finished product, and can still ensure that the film strip is neatly collected in the collecting part.

[0023] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or be understood by implementing the embodiments of the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1A structural cross-sectional view of a correction system provided in an embodiment of the present invention.

[0025] Figure 2 Schematic diagram of the structure of the spiral shaft in an embodiment of the present invention.

[0026] Figure 3 A sectional side view of a correction system provided in an embodiment of the present invention.

[0027] Description of labels: 100, collecting section; 200, spiral shaft; 210, first spiral shaft; 220, second spiral shaft; 210, thread; 300, processing section; 410, semi-finished product; 420, finished product. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] 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 positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0033] It should be noted that the “rear” mentioned below refers to the conveying direction of the film tape, that is, the downstream direction, and the “front” is the opposite direction of the “rear”.

[0034] Reference Figure 1 and attached Figure 2 The present invention provides a correction system, including a driving device (not shown) and a fixed collecting portion 100, the driving device is used to drive the film tape to move backward; the collecting portion 100 is used to collect the film tape, and also includes a spiral shaft 200 arranged in front of the collecting portion 100, the thread 230 on the surface of the spiral shaft 200 can contact the bottom surface of the film tape and can drive the film tape to move in the left and right directions by rotating the thread 230 to correct the left and right deviation of the film tape and ensure that the film tape is neatly collected in the collecting portion 100.

[0035] In this embodiment, the driving device can be a combination of a motor and a roller, and the motor drives the roller to rotate, and the roller contacts the film tape and drives the film tape to move. The collecting part can be a winding roller or a cutting mechanism, which is used to wind or cut the film tape. The spiral shaft can be arranged below the conveying path of the film tape, and the thread protrudes outward to facilitate contact with the bottom surface of the film tape. The material of the spiral shaft can be a wear-resistant material such as metal or plastic, and the shape of the thread can be a triangular thread, a trapezoidal thread or a sawtooth thread, etc. The pitch of the thread can be designed according to the offset and correction speed of the film tape. The spiral shaft can be driven to rotate by a motor, and the speed and rotation direction of the motor can be controlled according to the offset of the film tape to achieve accurate correction of the offset of the film tape. The bottom surface of the film tape refers to the side surface of the film tape facing the thread. Through the rotation of the spiral shaft, the thread exerts a left-right force on the bottom surface of the film tape, and this force causes the film tape to be displaced in the left-right direction, thereby achieving the purpose of correcting the left-right offset of the film tape. The spiral shaft is fixedly arranged before the collecting part, which means that the spiral shaft is located on the path before the membrane tape enters the collecting part. This can correct the deviation of the membrane tape in advance, ensure the accurate position of the membrane tape entering the collecting part, and finally achieve neat collection of the membrane tape.

[0036] Specifically, when the driving device drives the film tape to move backward, the film tape enters the collection part for collection. If the film tape deviates left or right during the movement, it can be corrected by a spiral shaft arranged before the collection part. The thread on the spiral shaft contacts the bottom surface of the film tape. When the film tape is detected to be deviated, the control device controls the spiral shaft to rotate. The rotation of the thread will apply a left and right force to the bottom surface of the film tape, and this force drives the film tape to move in the opposite direction of the deviation, thereby correcting the left and right deviation of the film tape. Through the continuous correction of the spiral shaft, it can be ensured that the film tape always remains on the correct path and is finally collected neatly in the collection part, avoiding the problem of uneven end surface of the coil or inaccurate cutting position. Compared with the method of correcting the deviation by moving the entire winding roller in the prior art, this scheme uses a fixed spiral shaft for correction, which has a simpler structure, fewer moving parts, is not easy to generate mechanical vibration, and improves the operating stability of the equipment. Moreover, the spiral shaft is arranged before the collection part, and can correct the deviation of the semi-finished film tape, avoiding the influence of the deviation during the processing of the semi-finished product on the product quality.

[0037] In some specific embodiments, the correction system can be applied to the scenario of film tape winding. The collecting part is a winding device, which is used to wind the film tape into a coil. The spiral shaft is arranged on the feeding side of the winding device, close to the position where the film tape is about to be wound onto the coil. When the film tape deviates to the left or right during the winding process, for example, deviates to the left, the control device controls the spiral shaft to rotate in a clockwise direction, and the rotation of the thread pushes the film tape to the right, thereby correcting the left deviation of the film tape. Conversely, if the film tape deviates to the right, the spiral shaft is controlled to rotate in a counterclockwise direction to push the film tape to the left. Through the precise correction of the spiral shaft, the end surface of the coil can be made flat and the quality of the coil can be improved.

[0038] In certain embodiments, referring to Figure 1 The correction system also includes a processing section 300 fixedly arranged in front of the collecting section 100, a first spiral shaft 210 is arranged between the processing section 300 and the collecting section 100, and the film belt is divided into a semi-finished product 410 located in front of the first spiral shaft 210 and a finished product 420 located behind the first spiral shaft 210 by the first spiral shaft 210. The processing section 300 is used to process the semi-finished product into a finished product; the collecting section 100 is used to collect the finished product 420; the first spiral shaft 210 is used to drive the semi-finished product 410 to move in the left and right directions to correct the left and right deviation of the semi-finished product 410 and ensure that the finished product 420 is neatly collected in the collecting section 100.

[0039] In this embodiment, the processing part is fixedly installed in front of the collecting part. The first spiral shaft is arranged between the processing part and the collecting part. The membrane tape is divided into a semi-finished product located in front of the first spiral shaft and a finished product located at the rear of the first spiral shaft, with the first spiral shaft as the boundary. The processing part performs the process of converting the semi-finished product into a finished product. The function of the collecting part is to collect the finished membrane tape that has been processed. The role of the first spiral shaft is to drive the semi-finished product to move in the left and right directions, so as to correct the left and right deviation that may occur in the semi-finished product. The ultimate goal is to ensure that the finished membrane tape can be neatly collected in the collecting part. Therefore, by adding the first spiral shaft between the processing part and the collecting part, the membrane tape deviation that may occur during the processing process can be effectively corrected to ensure the quality of the finished membrane tape finally collected.

[0040] Specifically, the film tape moves backward under the drive of the driving device, first enters the processing section for processing, and is transformed from a semi-finished product to a finished product. After passing through the processing section, the film tape continues to move to the collection section. Due to the processing process or the film tape itself, the film tape may deviate left and right before reaching the collection section. In order to solve this problem, a first spiral shaft is set between the processing section and the collection section. When the film tape passes through the first spiral shaft, the thread on the surface of the first spiral shaft contacts the bottom surface of the film tape. By rotating the thread, a left and right force can be applied to the film tape, thereby driving the film tape to move in the left and right directions to correct the deviation of the film tape. Through the correction effect of the first spiral shaft, the position of the film tape entering the collection section can be ensured to be accurate, and finally neatly collected by the collection section. This structure is particularly suitable for continuous production scenarios, such as white ink digital heat transfer production. In the continuous process of processing semi-finished products into finished products, the deviation of the film tape can be effectively controlled to ensure product quality.

[0041] It should be noted that, for example, in the scenario of white ink digital heat transfer production, since a pattern needs to be printed on the upper surface of the film strip, a spiral shaft can only be provided on the bottom surface of the film strip to drive the film strip to move left and right.

[0042] In some specific embodiments, the processing part can be a heating device for heating the film strip. The first spiral shaft can be driven by a motor, and the offset of the film strip can be detected by a sensor (such as a visual sensor, etc.), and the offset is fed back to the control device. The control device controls the rotation of the motor according to the offset, and then adjusts the rotation direction and speed of the first spiral shaft to achieve accurate correction of the offset of the film strip. The collection part can be a winding device for winding the processed film strip into a coil. Through the deviation correction of the first spiral shaft, the end surface of the wound coil can be guaranteed to be flat, avoiding wrinkles or damage to the coil during subsequent transportation.

[0043] In some embodiments, the correction system also includes a processing part 300 fixedly arranged in front of the collecting part 100, and a second spiral shaft 220 is arranged in front of the processing part 300. The second spiral shaft 220 is used to drive the film tape located in front of the second spiral shaft 220 to move in the left and right directions to correct the left and right deviation of the film tape at that location and ensure that the film tape located behind the second spiral shaft 220 is neat.

[0044] In this embodiment, in order to solve the problem that the film tape may deviate before entering the processing section, it is proposed to add a second spiral shaft before the processing section. The second spiral shaft is positioned upstream of the processing section, and the film tape first passes through the second spiral shaft before entering the processing section for processing. As a result, the second spiral shaft can pre-correct the deviation of the film tape before entering the processing section, ensuring the accurate position of the film tape entering the processing section. This pre-correction method avoids the situation where the subsequent processing quality is affected by the deviation of the film tape before processing, thereby ensuring the quality of the film tape processing. Through the setting of the second spiral shaft, the entire deviation correction system takes into account the deviation problem of the film tape before and after processing, making the deviation correction system more perfect, further improving the reliability of the film tape processing and the quality of the final product.

[0045] Specifically, during the production process of the film tape, the film tape first passes through the second spiral shaft. The second spiral shaft contacts the bottom surface of the film tape through the threads on the surface. When the film tape deviates to the left or right, the threads rotate to drive the film tape to move in the left or right direction, thereby correcting the deviation of the film tape. After the film tape is corrected by the second spiral shaft, its position is corrected and then enters the processing department for processing. After the processing is completed, the film tape is collected by the collection department. Since the film tape has been corrected by the second spiral shaft before entering the processing department, the position of the film tape entering the processing department is accurate, ensuring the processing quality of the film tape by the processing department. In addition, the pre-correction also lays the foundation for the subsequent neat collection of the film tape.

[0046] In addition, the second spiral shaft can be used in conjunction with the first spiral shaft. In this case, spiral shafts are provided at both the front and rear ends of the processing section, thereby coping with the deviation of the film tape at various positions and further improving the deviation correction capability and control accuracy.

[0047] In some specific embodiments, the printing platform of the white ink digital heat transfer production equipment serves as a processing unit, and a second spiral shaft is arranged in front of the printing platform. Before the film tape enters the printing platform, it first passes through the second spiral shaft. When the film tape is detected to be offset, the second spiral shaft is immediately rotated to drive the film tape to move in the opposite direction, correct the offset of the film tape, and ensure that the film tape is in the correct position when entering the printing platform. As a result, the printer can accurately print the pattern at the specified position of the film tape, avoiding problems such as printing misalignment or pattern skewness caused by the offset of the film tape, and ensuring the printing quality of the white ink digital heat transfer.

[0048] After that, the oven of the Baimo digital heat transfer production equipment also serves as the processing part, and the first spiral shaft is set at the back of the oven. When the film strip deviates in the oven, the first spiral shaft is driven to correct the deviation of the film strip, thereby ensuring that the end surface of the rolled coil is flat and avoiding wrinkles or damage during the subsequent transportation process.

[0049] In certain embodiments, referring to Figure 3The height of the highest position of the thread 230 is greater than or equal to the height of the upper surface of the processing part 300 to prevent the film tape from squeezing the processing part 300.

[0050] In order to ensure that the highest point of the thread of the spiral shaft is not too low during the deviation correction operation, that is, the highest point of the thread is lower than the upper surface of the processing part, causing the film belt to be pressed downward to the upper surface of the fixed processing part under the drive of the spiral shaft, thereby causing unnecessary friction or even damage between the film belt and the processing part, the height of the highest position of the thread is set to be greater than or equal to the height of the upper surface of the processing part. Through this height configuration, it can be ensured that when the thread drives the film belt to move left and right for deviation correction, the film belt can smoothly pass above the processing part, thereby avoiding squeezing the processing part. In this way, the film belt and the processing part can be protected from damage, ensuring that the film belt can complete the processing process smoothly and with high quality, and ensuring that the film belt is accurately corrected.

[0051] Specifically, during the operation of the membrane tape, the threads of the spiral shaft rotate to generate lateral thrust to correct the left and right deviation of the membrane tape. If the height of the highest position of the thread is lower than the upper surface of the processing part, the membrane tape may be squeezed downward by the thread during the correction process, causing friction with the surface of the processing part, and in severe cases, may even cause scratches on the membrane tape or wear on the processing part. In order to avoid this situation, the height of the highest position of the thread is designed to be equal to or slightly higher than the upper surface of the processing part. In this way, when the spiral shaft rotates and drives the membrane tape to move laterally, the membrane tape can slide smoothly over the processing part without being squeezed downward by the thread. This height design ensures the smoothness of the correction process, reduces the risk of damage to the membrane tape, and maintains the normal working state of the processing part.

[0052] In some specific embodiments, for example, if the height of the upper surface of the processing part is 10 mm, the radial distance between the highest position of the thread of the spiral shaft and the axis of the spiral shaft should ensure that the height of the highest position of the thread is at least 10 mm, or slightly higher than 10 mm, such as 10.5 mm. Through such a size design, it is possible to effectively avoid the thread from squeezing the processing part during deviation correction, ensure the smooth movement of the film belt, and improve production efficiency and product quality.

[0053] In some embodiments, the correction system further includes a control device (not shown) for performing the following steps: S1. Obtaining the film tape moving speed and thread inclination angle; S2. Calculate the correction error according to the film belt moving speed and the thread inclination angle; S3. Control the rotation of the screw shaft according to the correction error.

[0054] In practical applications, the correction speed of the spiral shaft is determined by the thread inclination angle and the rotational speed. For example, at the same rotational speed, the larger the thread inclination angle, the larger the distance the spiral shaft drives the membrane belt to move per unit time; for another example, at the same thread inclination angle, the larger the rotational speed, the larger the distance the spiral shaft drives the membrane belt to move per unit time.

[0055] When the film tape deviates, the film tape is controlled to keep moving while the spiral shaft is controlled to rotate (that is, the collection and correction of the film tape are carried out simultaneously, and the film tape does not stop moving during the correction process). At this time, the correction speed of the spiral shaft and the moving speed of the film tape become the main influencing factors of the correction deviation (for example, the film tape moves too fast, resulting in the spiral shaft failing to complete the correction in time, which will cause a large correction error). The user can control the correction deviation by adjusting the correction speed of the spiral shaft and the moving speed of the film tape, thereby ensuring that the deviation between the corrected film tape and the ideal position is within the allowable range (the correction accuracy is determined according to user needs).

[0056] In this regard, the present embodiment is provided with a control device configured to perform precise screw axis control.

[0057] In step S1, the moving speed of the film tape is measured by a speed sensor, and the thread inclination angle is a pre-set parameter.

[0058] In step S2, the correction error is calculated based on the film tape moving speed and the thread inclination angle, and this error value represents the degree of film tape deviation.

[0059] In step S3, the rotation of the spiral shaft is controlled according to the correction error calculated in step S2, so as to realize automatic correction of the film strip deviation. The control device can dynamically adjust the rotation of the spiral shaft according to the actual running state of the film strip, realizing accurate correction control.

[0060] Specifically, the control device can be a programmable logic controller, the membrane tape movement speed can be measured by an encoder installed on the drive device, and the thread inclination angle can be pre-set according to the actual thread structure. In step S2, the calculation of the correction error can adopt a preset mathematical model, which associates the membrane tape movement speed, the thread inclination angle and the offset of the membrane tape. For example, the mathematical model can predict the lateral displacement of the membrane tape based on the lead of the thread and the membrane tape speed, and compare the predicted displacement with the expected displacement to obtain the correction error (the premise of running the mathematical model is that the membrane tape has been detected to be offset. When the membrane tape has not been offset, there is no need to control the rotation of the spiral shaft, and there is no need to run the mathematical model). In step S3, the control device generates a control signal based on the calculated correction error, and the control signal is sent to the motor that drives the spiral shaft to rotate, thereby accurately controlling the speed of the spiral shaft to achieve accurate correction of the membrane tape offset.

[0061] In some specific embodiments, the control device monitors the moving speed of the film tape in real time, and continuously calculates the correction error in combination with the preset thread inclination angle, and adjusts the rotation of the spiral shaft in real time according to the error value to achieve closed-loop correction control. For example, when the film tape moves faster, the control device can adjust the rotation speed of the spiral shaft accordingly to ensure that the correction effect matches the film tape speed.

[0062] In certain embodiments, referring to Figure 1 The collecting part 100 is a winding device, which is used to wind up the film strip and make it into a coil; the spiral shaft 200 is used to correct the left and right deviation of the film strip to make the end surface of the coil flat.

[0063] In this embodiment, the spiral shaft is specifically defined as a key component for ensuring the flatness of the end surface of the coiled material in view of the situation that the collecting part is specifically a winding device. Specifically, the winding device performs the function of winding the film strip to form a coiled material, and the spiral shaft is arranged in front of the winding device to pre-correct the left and right deviation of the film strip. The thread on the surface of the spiral shaft contacts the bottom surface of the film strip, and generates a lateral thrust by rotating the thread, which drives the film strip to move in the left and right directions, thereby offsetting or reducing the deviation of the film strip. As a result, when the film strip is finally collected by the winding device, its position has been preliminarily adjusted by the spiral shaft, which helps the coiled material to be wound in a more neat state and finally form a coiled material with a flat end surface. This pre-correction mechanism is different from the traditional method of directly correcting the deviation in a large extent in the winding link, which can significantly reduce mechanical vibration and improve the stability of the entire system. In addition, through the continuous fine-tuning of the spiral shaft, various uncertain deviations generated by the film strip during movement can be more effectively dealt with, thereby ensuring the overall quality of the coiled material and the safety during subsequent transportation.

[0064] Specifically, the film strip moves backward under the traction of the driving device, preparing to enter the winding device for winding. Before the film strip reaches the winding device, it first passes through a fixed spiral shaft. The thread on the spiral shaft contacts the bottom surface of the film strip. When the film strip is detected to be offset left or right, the control system controls the spiral shaft to rotate. The rotation of the spiral shaft drives the thread to move, and the friction between the thread and the bottom surface of the film strip is converted into a correcting force that drives the film strip to move left or right. Under the action of this correcting force, the lateral position of the film strip is adjusted, and the offset is effectively corrected. After the spiral shaft corrects the deviation, the film strip enters the winding device at a more precise position. The winding device continues to work and winds the film strip into a coil. Since the film strip has been pre-corrected by the spiral shaft before entering the winding device, the accumulated offset is reduced, so the end surface of the coil formed by winding is smoother. The coil with a smooth end surface not only has a higher appearance quality, but also the edge of the film strip is not easy to wrinkle or break during the subsequent handling and storage process, reducing the risk of material loss.

[0065] In some specific embodiments, the spiral shaft can be driven to rotate by a motor, and the speed and direction of rotation of the motor can be accurately controlled according to the offset of the film tape. In order to more accurately detect the offset of the film tape, sensors, such as photoelectric sensors or image sensors, can be set on the front and back sides of the spiral shaft. The sensor monitors the edge position of the film tape in real time and feeds back the detected offset signal to the control system. The control system calculates the required correction amount based on the offset signal and controls the motor to drive the spiral shaft to make corresponding adjustments. The thread shape of the spiral shaft can be optimized according to the material and thickness of the film tape. For example, for thinner and more easily deformed film tapes, a slower thread lead angle can be used to avoid damage to the film tape during the correction process.

[0066] As a preferred embodiment, the surface of the spiral shaft can be subjected to low friction treatment, such as coating with Teflon coating, so as to reduce the friction resistance between the thread and the membrane belt, improve the correction efficiency and reduce the wear of the membrane belt.

[0067] In some embodiments, the collecting portion 100 is a cutting device (not shown), which is used to cut the film tape; the spiral shaft 200 is used to correct the left-right deviation of the film tape so that the cutting device can correctly cut the film tape.

[0068] In this embodiment, the spiral shaft is arranged before the cutting device, and the threads on the surface of the spiral shaft are in contact with the bottom surface of the film tape. When the spiral shaft rotates, the threads drive the film tape to move in the left and right directions, thereby correcting the left and right deviation of the film tape. The cutting device is used to cut the film tape. In order to ensure that the cutting device can correctly cut the film tape, the left and right deviation of the film tape is corrected by the spiral shaft, which can ensure that the film tape is in the correct position when entering the cutting device, avoiding the problem of inaccurate cutting position caused by the left and right deviation of the film tape, ensuring that the cutting device can correctly and accurately cut the film tape, and improving the cutting quality of the film tape.

[0069] Specifically, during the transportation process, the film tape may be affected by mechanical vibration or the unevenness of the film tape's own material, causing the film tape to deviate to the left or right. In order to solve this problem, a spiral shaft is set in front of the cutting device. The threaded structure of the spiral shaft can contact the bottom surface of the film tape. When the film tape is detected to be deviated, the control system will drive the spiral shaft to rotate. The rotation of the spiral shaft will generate a lateral force, which is applied to the film tape, causing the film tape to move in the opposite direction of the deviation, thereby correcting the left and right deviation of the film tape and ensuring that the film tape enters the cutting device in an aligned state. As a result, the cutting device can accurately cut the film tape according to the preset cutting parameters, avoiding cutting errors caused by the deviation of the film tape and improving the cutting accuracy and quality.

[0070] In some specific embodiments, the cutting device can be a rotary cutting blade or a shearing cutting mechanism. The spiral shaft is installed on the path of the film strip before it enters the cutting device, and the thread direction of the spiral shaft is designed to be adjustable according to the deviation direction of the film strip to achieve a bidirectional deviation correction function.

[0071] As a preferred embodiment, the control system can integrate sensors for real-time detection of the edge position of the film strip and feed back the detected offset to the control system. The control system accurately controls the rotation angle and speed of the spiral shaft according to the offset to achieve closed-loop precise deviation correction control.

[0072] The present invention provides a white ink digital heat transfer production device, comprising the deviation correction system of the above embodiment.

[0073] It should be noted that the white ink digital heat transfer production equipment generally includes a printer, a powder spreader, an oven and a collection department. The basic process is that the printer uses special ink to print patterns on the upper surface of the film tape, the powder spreader covers the special powder on the upper surface of the pattern, the oven dries the ink and melts the powder, and finally the collection department collects the finished products.

[0074] In some embodiments, the white ink digital heat transfer production equipment also includes an oven, which is used to heat the film strip; the correction system also includes a processing section 300 fixedly arranged before the collecting section 100, the processing section 300 is a heating device and is arranged in the oven, and a first spiral shaft 210 is arranged between the processing section 300 and the collecting section 100, and the first spiral shaft 210 is used to correct the left and right deviation generated after the film strip is heated so that the film strip can be neatly collected in the collecting section 100.

[0075] In this embodiment, the oven is used to heat the film tape, the processing part is specifically a heating device, and the heating device is arranged inside the oven. The first spiral shaft is arranged between the heating device and the collecting part, and after the film tape is heated by the heating device, the left and right deviation of the film tape is corrected by the first spiral shaft. The heating device can adopt various heating methods, such as infrared heating or hot air heating. The thread of the first spiral shaft contacts the bottom surface of the film tape, and the film tape is driven to move in the left and right directions by the rotation of the thread, thereby correcting the deviation of the film tape. The collecting part is used to collect the film tape after the deviation is corrected, and the collecting part can be a winding device or a cutting device.

[0076] Specifically, during the operation of the white ink digital heat transfer production equipment, the film strip first enters the oven and is heated by the heating device in the oven. During the heating process, the film strip may deviate left and right due to thermal expansion and contraction, or uneven distribution of ink and pattern, resulting in uneven local heating of the film strip. When the film strip leaves the heating device, it enters the area where the first spiral shaft is located. The thread of the first spiral shaft contacts the bottom surface of the film strip. By rotating the thread, a left and right force can be applied to the film strip. This force can drive the film strip to move in the left and right directions, thereby correcting the deviation of the film strip during the heating process. After the deviation correction, the film strip is finally neatly collected by the collection unit. In this way, the problem of the film strip deviating after heating can be effectively solved, ensuring that the film strip can be rolled up flatly or cut accurately, thereby improving the production quality of the white ink digital heat transfer production equipment.

[0077] In some specific embodiments, the heating device can be an array of infrared heating tubes, which are evenly distributed inside the oven to heat the film strip. The first spiral shaft can be made of stainless steel, and the thread is a continuous thread, and the pitch of the thread can be adjusted according to the width and offset of the film strip. The first spiral shaft is driven to rotate by a motor, and the speed of the motor can be controlled according to the moving speed and offset of the film strip. The collecting part is a winding device, which is used to wind the corrected film strip into a coil. Through the above structure, the offset of the film strip after heating in the production process of white ink digital heat transfer can be effectively corrected to ensure the flatness of the end surface of the coil.

[0078] In some embodiments, the white ink digital heat transfer production equipment also includes a printer (not shown), which is used to print a pattern at a specified position on the film strip; the correction system also includes a processing unit 300 fixedly arranged before the collecting unit 100, the processing unit 300 is a printing platform and is arranged in the printer, and a second spiral shaft 220 is arranged before the printing platform, and the second spiral shaft 220 is used to correct the left and right deviation of the film strip so that the printer can correctly print the pattern at the specified position on the film strip.

[0079] In this embodiment, the second spiral shaft is fixedly arranged in front of the printing platform. When the film tape moves toward the printing platform, the thread on the surface of the second spiral shaft contacts the bottom surface of the film tape. By rotating the thread, the film tape is driven to move in the left and right directions. This movement can correct the left and right deviation of the film tape before entering the printing platform. As a result, the film tape can enter the printing platform in the correct position, providing a guarantee for subsequent accurate printing.

[0080] Specifically, in the white ink digital heat transfer production equipment, the film strip first passes through the second spiral shaft. When the film strip deviates left or right during movement, the second spiral shaft can detect this deviation in time. By controlling the rotation of the second spiral shaft, a lateral force can be generated to drive the film strip to move in the opposite direction of the deviation. After the deviation of the film strip is corrected, it enters the printing platform as the processing part in an aligned position. The printer prints the pattern on the film strip on the printing platform. Since the film strip has been corrected before entering the printing platform, the printer can accurately print the pattern at the specified position of the film strip, ensuring the printing quality.

[0081] In some specific embodiments, in a white ink digital heat transfer production device, a printer is used to print a color pattern on a film strip. The printing platform is configured as a part of the printer, and the film strip is supported on the printing platform for printing. The second spiral shaft is installed on the feed side of the printing platform, that is, the position before the film strip enters the printing platform. When the film strip is conveyed to the printing platform, a sensor arranged before the printing platform detects the edge position of the film strip. If it is detected that the film strip is offset, the control system controls the second spiral shaft to rotate, and the thread rubs against the bottom surface of the film strip to generate a lateral thrust, so that the film strip moves in the opposite direction, thereby correcting the offset of the film strip. After the deviation correction of the second spiral shaft, the film strip enters the printing platform in an aligned position, and the printer accurately prints the pattern at the predetermined position of the film strip.

[0082] In the description of this specification, the description with reference to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0083] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A deviation correction system, comprising a driving device and a fixedly arranged collecting portion (100), wherein the driving device is used to drive the film strip to move backward; the collecting portion (100) is used to collect the film strip, characterized in that: It also includes a spiral shaft (200) arranged before the collecting portion (100), wherein the thread (230) on the surface of the spiral shaft (200) is capable of contacting the bottom surface of the film tape and, by rotating the thread (230), is capable of driving the film tape to move in the left-right direction to correct the left-right deviation of the film tape and ensure that the film tape is neatly collected in the collecting portion (100).

2. The correction system according to claim 1, characterized in that: It also includes a processing section (300) fixedly arranged in front of the collecting section (100), a first spiral shaft (210) is arranged between the processing section (300) and the collecting section (100), and the membrane strip is divided into a semi-finished product (410) located in front of the first spiral shaft (210) and a finished product (420) located behind the first spiral shaft (210) by the first spiral shaft (210), the processing section (300) is used to process the semi-finished product into a finished product; the collecting section (100) is used to collect the finished product (420); the first spiral shaft (210) is used to drive the semi-finished product (410) to move in the left-right direction to correct the left-right deviation of the semi-finished product (410) and ensure that the finished product (420) is neatly collected in the collecting section (100).

3. The correction system according to claim 1 or 2, characterized in that: It also comprises a processing portion (300) fixedly arranged in front of the collecting portion (100), a second spiral shaft (220) being arranged in front of the processing portion (300), the second spiral shaft (220) being used to drive the film belt located in front of the second spiral shaft (220) to move in the left-right direction to correct the left-right deviation of the film belt at that location.

4. The correction system according to claim 3, characterized in that: The height of the highest position of the thread (230) is greater than or equal to the height of the upper surface of the processing portion (300) so as to prevent the film tape from squeezing the processing portion (300).

5. The correction system according to claim 1, characterized in that: Also included is a control device for performing the following steps: S1. Obtaining the film tape moving speed and thread inclination angle; S2. Calculate the correction error according to the film tape moving speed and the thread inclination angle; S3. Control the rotation of the screw shaft according to the correction error.

6. The correction system according to claim 1, characterized in that: The collecting portion (100) is a winding device, which is used to wind up the film strip and make it into a coiled material; the spiral shaft (200) is used to correct the left-right deviation of the film strip so as to make the end surface of the coiled material flat.

7. The correction system according to claim 1, characterized in that: The collecting portion (100) is a cutting device, and the cutting device is used for cutting the film tape; the spiral shaft (200) is used for correcting the left-right deviation of the film tape so that the cutting device can correctly cut the film tape.

8. A white ink digital heat transfer production device, characterized in that: Comprising a correction system as described in any one of claims 1-7.

9. The white ink digital heat transfer production equipment according to claim 8, characterized in that: The invention also includes an oven, which is used to heat the film strip; the deviation correction system also includes a processing section (300) fixedly arranged before the collecting section (100); the processing section (300) is a heating device and is arranged in the oven; a first spiral shaft (210) is arranged between the processing section (300) and the collecting section (100); the first spiral shaft (210) is used to correct the left-right deviation of the film strip generated after heating so that the film strip can be neatly collected in the collecting section (100).

10. The white ink digital heat transfer production equipment according to claim 8, characterized in that: The invention also includes a printer, which is used to print a pattern at a specified position of the film tape; the correction system also includes a processing unit (300) fixedly arranged in front of the collecting unit (100), the processing unit (300) is a printing platform and is arranged in the printer, and a second spiral shaft (220) is arranged in front of the printing platform, and the second spiral shaft (220) is used to correct the left and right deviation of the film tape so that the printer can correctly print the pattern at the specified position of the film tape.

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