PET (Polyethylene Terephthalate) film conveying and positioning device for transfer printing of household appliance glass panel

Abstract

The utility model discloses a PET (polyethylene terephthalate) film conveying and positioning device for transfer printing of household appliance glass panels, which comprises a frame, a conveying unit, a deviation rectifying device and a tensioning unit, the conveying unit comprises transmission rods rotatably mounted on two sides of the frame, conveying rollers are fixedly mounted on the transmission rods on two sides, a driving component is arranged between the transmission rods on two sides, and the conveying rollers are fixedly mounted on the transmission rods on two sides. The number of the deviation rectifying devices is two, the two deviation rectifying devices are arranged between the conveying rollers on the two sides, and the tensioning unit is arranged between the deviation rectifying devices on the two sides. Through the synergistic effect of the conveying unit, the deviation correcting device and the tensioning unit, stable conveying and precise positioning of the PET film for transfer printing of the household appliance glass panel are achieved, through the synergistic effect, the conveying stability of the PET film is improved, the position accuracy and the tensioning degree suitability of the PET film in the conveying process are guaranteed, and the conveying efficiency of the PET film is improved. Therefore, the transfer printing quality and the production efficiency are remarkably improved, and the defective rate caused by unstable conveying, deviation or improper tensioning of the PET film is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of PET film processing technology, and more specifically, to a PET film conveying and positioning device for glass panel transfer printing in household appliances. Background Technology

[0002] In the production of glass panels for home appliances, PET film is a key material. The accuracy of its transport and positioning, as well as the appropriateness of its tension, have a crucial impact on subsequent transfer operations and the final product quality. As the home appliance industry continues to demand higher quality appearances for glass panels, more stringent standards are being set for the stability and accuracy of PET film during transport.

[0003] During the PET film transport process, deviation is prone to occur. If the deviated PET film is not corrected in a timely and accurate manner, it will deviate from its correct position, affecting subsequent transfer printing and other operations, thus reducing the quality and stability of the entire production process. Furthermore, the tension of the PET film is difficult to maintain consistently during transport. If the tension is too loose, wrinkles and slippage may occur during transport, affecting the transport efficiency; if the tension is too tight, the film may be overstretched or even damaged, ultimately affecting the quality of subsequent transfer printing and reducing the overall quality of the product. To address these problems, this device was invented. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a PET film conveying and positioning device for glass panel transfer of household appliances, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a PET film conveying and positioning device for transferring glass panels in household appliances, comprising:

[0006] frame;

[0007] The conveying unit includes transmission rods rotatably mounted on both sides of the frame, conveying rollers are fixedly mounted on both transmission rods, and a drive assembly is provided between the two transmission rods.

[0008] The correction device consists of two sets, which are positioned between the conveyor rollers on both sides.

[0009] The tensioning unit is located between the correction devices on both sides.

[0010] Furthermore, the surface of the conveyor roller is machined with anti-slip texture.

[0011] Furthermore, the drive assembly includes a dual-axis motor mounted on the frame, with each output shaft of the dual-axis motor connected to a coupling. A bevel gear set is provided between the transmission rod and the coupling on the same side. Brackets are also fixedly installed on both sides of the frame, and the couplings on both sides are rotatably connected to the brackets on both sides respectively.

[0012] Furthermore, the drive assembly and the conveyor rollers are located on opposite sides of the frame.

[0013] Furthermore, the correction device includes a frame fixedly installed at the bottom of the machine frame, a single-direction screw rotatably mounted on the frame, a No. 1 motor mounted on the frame, and the output shaft of the No. 1 motor connected to the single-direction screw. A movable seat is threaded onto the single-direction screw, and a vertical rod is fixedly mounted on the top of the movable seat. The top of the vertical rod has an insertion slot, and limit slots are provided on both sides of the insertion slot. An inverted L-shaped frame plate is provided above the vertical rod, and an insertion rod adapted to the insertion slot is fixedly mounted on the bottom of the frame plate. Placement holes are provided on both sides of the insertion rod, and springs are fixedly mounted in the placement holes. Limit blocks adapted to the limit slots are connected to the outer ends of the springs. An installation rod is also fixedly mounted on the top of the movable seat, and a mating hole adapted to the installation rod is provided on the top of the frame plate. A correction roller is rotatably mounted on the installation rod.

[0014] Furthermore, several mounting holes are evenly provided on the inner walls of the top of the movable seat and the top of the frame plate. Rolling balls are connected in the mounting holes, and the maximum depth of the mounting holes is greater than the radius of the rolling balls but less than the diameter of the rolling balls. The top and bottom of the correction roller are in contact with the rolling balls on the upper and lower sides, respectively.

[0015] Furthermore, the tensioning unit includes a pad fixedly installed on the top of the frame, upright plates fixedly installed on both sides of the bottom of the pad, a double-rotating screw rotatably installed between the two upright plates, a second motor installed on the frame, the output shaft of the second motor connected to the double-rotating screw, upper supports threadedly connected to both sides of the double-rotating screw, the top of the upper supports fitting against the inner wall of the top of the pad, a movable frame installed below the pad, two lower supports fixedly installed on the top of the movable frame, a connecting rod hinged between the upper and lower supports on the same side, and an adjusting roller rotatably installed at the bottom of the movable frame.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] The web-aligning device is driven by a single-direction screw via a No. 1 motor, which moves the movable seat along the frame. The uprights and frame structure at the top of the movable seat, along with the insertion slot, limiting slot, spring, and limiting block, enable stable movement and positioning of the web-aligning roller. This design allows the web-aligning roller to perform web-aligning operations on the PET film, ensuring that the PET film remains in the correct position during transport. This effectively prevents the PET film from being misaligned, thus affecting subsequent operations such as transfer printing, thereby improving the quality and stability of the entire production process. The tensioning unit is driven by a double-direction screw via a No. 2 motor, which moves the upper support in opposite directions. Through the connection of the connecting rod and the movable frame, the adjusting roller can move longitudinally, thereby adjusting the tension of the PET film. This design ensures that the PET film maintains appropriate tension during transport, preventing the PET film from being too loose or too tight, which would affect the transport effect and subsequent transfer printing quality, thus improving the overall quality of the product. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the overall structure of this utility model;

[0020] Figure 2 Rear view of the overall structure provided for this utility model;

[0021] Figure 3 A schematic diagram of the tensioning unit provided by this utility model;

[0022] Figure 4 A schematic diagram of the correction device provided by this utility model;

[0023] Figure 5 This is a schematic diagram of the installation of the limiting block provided by this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Frame; 2. Conveying unit; 21. Transmission rod; 22. Conveying roller; 23. Drive assembly; 231. Dual-shaft motor; 232. Coupling; 233. Bevel gear set; 234. Support; 3. Tensioning unit; 31. Pad; 32. Vertical plate; 33. Double-rotating screw; 34. Motor No. 2; 35. Upper support; 36. Movable frame; 37. Lower support; 38. Connecting rod; 39. Adjusting roller; 4. Correction device; 41. Frame; 42. Single-rotating screw; 43. Motor No. 1; 44. Moving seat; 441. Mounting hole; 442. Ball bearing; 45. Vertical rod; 451. Insertion groove; 452. Limiting groove; 46. Frame plate; 461. Insertion rod; 462. Spring; 463. Limiting block; 47. Mounting rod; 48. Correction roller. Detailed Implementation

[0026] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] See attached document Figures 1-5 The PET film conveying and positioning device for transferring glass panels of home appliances in this embodiment includes a frame 1, a conveying unit 2, a correction device 4, and a tensioning unit 3.

[0029] See attached document Figure 1 and Figure 2 The conveying unit 2 includes transmission rods 21 rotatably mounted on both sides of the frame 1, conveying rollers 22 are fixedly mounted on both sides of the transmission rods 21, and a drive assembly 23 is provided between the transmission rods 21 on both sides. The drive assembly 23 and the conveying rollers 22 are respectively located on both sides of the frame 1.

[0030] The drive assembly 23 includes a dual-axis motor 231 mounted on the frame 1. Both output shafts of the dual-axis motor 231 are connected to couplings 232. A bevel gear set 233 is provided between the transmission rod 21 and the coupling 232 on the same side. Brackets 234 are also fixedly mounted on both sides of the frame 1. The couplings 232 on both sides are rotatably connected to the brackets 234 on both sides to ensure the stability of the couplings 232 during rotation. When the dual-axis motor 231 starts, its output shafts drive the couplings 232 to rotate, which in turn transmits power to the transmission rod 21 through the bevel gear set 233, causing the transmission rod 21 to rotate. Since the conveyor roller 22 is fixedly mounted on the transmission rod 21, the rotation of the transmission rod 21 drives the conveyor roller 22 to rotate, thereby realizing the conveying of the PET film.

[0031] The surface of the conveyor roller 22 is processed with anti-slip texture to increase the friction between the conveyor roller 22 and the PET film, prevent the PET film from slipping during the conveying process, ensure that the PET film can be conveyed stably at the predetermined speed and direction, and improve the reliability of the entire conveying process.

[0032] See attached document Figure 4 and Figure 5 Two sets of correction devices 4 are provided, and the two sets of correction devices 4 are located between the conveyor rollers 22 on both sides. The correction device 4 includes a frame 41 fixedly installed at the bottom of the frame 1. A single-direction screw 42 is rotatably installed on the frame 41. A first motor 43 is installed on the frame 41, and the output shaft of the first motor 43 is connected to the single-direction screw 42. When in use, the first motor 43 is turned on, and the output shaft of the first motor 43 drives the single-direction screw 42 to rotate. A movable seat 44 is threadedly connected to the single-direction screw 42, and the width of the movable seat 44 is equal to the width of the inside of the frame 41, thereby limiting the movement of the movable seat 44. This allows the movable seat 44 to move along the frame 41 during the rotation of the single-direction screw 42. The top of the movable seat 44 is fixedly mounted. The device is equipped with a vertical pole 45, with a plug groove 451 on the top of the vertical pole 45. Limiting grooves 452 are provided on both sides of the plug groove 451. The movable seat 44 is vertically positioned with respect to the vertical pole 45, and the plug groove 451 is vertically positioned with respect to the limiting groove 452. An inverted L-shaped frame plate 46 is provided above the vertical pole 45. A plug rod 461 that matches the plug groove 451 is fixedly installed at the bottom of the frame plate 46. Placement holes are provided on both sides of the plug rod 461. A spring 462 is fixedly installed in the placement hole. A limiting block 463 that matches the limiting groove 452 is connected to the outer end of the spring 462. An installation rod 47 is also fixedly installed on the top of the movable seat 44. A docking hole that matches the installation rod 47 is provided on the top of the frame plate 46. A correction roller 48 is rotatably installed on the installation rod 47.

[0033] See attached document Figure 4Furthermore, the inner walls of the top of the movable seat 44 and the top of the frame plate 46 are evenly provided with a number of mounting holes 441. Roller balls 442 are rolled in the mounting holes 441. The maximum depth of the mounting holes 441 is greater than the radius of the roller balls 442 and less than the diameter of the roller balls 442, thereby ensuring that the roller balls 442 can rotate in the mounting holes 441 without falling out of the mounting holes 441. In addition, the top and bottom of the correction roller 48 are in contact with the roller balls 442 on the upper and lower sides respectively, thereby limiting the positioning of the correction roller 48.

[0034] During use, by turning on motor 43, the output shaft of motor 43 drives the moving seat 44 to rotate, thereby driving the correction roller 48 to move. The correction roller 48 performs correction operation on the PET film, so that the PET film can always be kept in the correct position, avoiding the impact of subsequent transfer and other operations due to the deviation of the PET film.

[0035] See attached document Figure 3 The tensioning unit 3 is located between the two correction devices 4 on both sides, including a pad 31 fixedly installed on the top of the frame 1. Vertical plates 32 are fixedly installed on both sides of the bottom of the pad 31. A double-rotating screw 33 is rotatably installed between the two vertical plates 32. A second motor 34 is installed on the frame 1. The output shaft of the second motor 34 is connected to the double-rotating screw 33. When in use, turning on the second motor 34 will rotate the double-rotating screw 33. Both sides of the double-rotating screw 33 are threaded with upper supports. The upper support 35 is fitted with the inner wall of the top of the pad 31, thus limiting the upper support 35. This allows the upper supports 35 on both sides to move towards or away from each other during the rotation of the double-rotating screw 33. A movable frame 36 is provided below the pad 31. Two lower supports 37 are fixedly installed on the top of the movable frame 36. A connecting rod 38 is hinged between the upper support 35 and the lower support 37 on the same side. An adjusting roller 39 is rotatably installed at the bottom of the movable frame 36. In use, the second motor 34 is turned on to rotate the double-rotating screw 33. Under the connection of the connecting rod 38, the movable frame 36 drives the adjusting roller 39 to move longitudinally, thereby adjusting the tension of the PET film. This ensures that the PET film maintains an appropriate tension during transportation, avoiding the impact on the transportation effect and subsequent transfer quality due to the PET film being too loose or too tight.

[0036] In this embodiment, the conveying unit 2's drive assembly 23 drives the conveying roller 22 to rotate, thus conveying the PET film. The anti-slip texture on the surface of the conveying roller 22 prevents the PET film from slipping, ensuring conveying stability. The alignment device 4 drives a single-direction screw 42 via a first motor 43, which in turn moves the movable seat 44. This, in turn, uses the upright 45, frame 46, and alignment roller 48 to perform alignment operations on the PET film, ensuring it remains in the correct position. The tensioning unit 3 drives a double-direction screw 33 via a second motor 34, which in turn moves the upper support 35. This, in turn, uses the connecting rod 38 and movable frame 36 to drive the adjusting roller 39 to move longitudinally, thereby adjusting the tension of the PET film and ensuring appropriate tension during conveying. Through the synergistic effect of conveying, alignment, and tensioning, this device achieves stable conveying and precise positioning of PET film used for transferring glass panels for home appliances, improving transfer quality and production efficiency.

[0037] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A PET film conveying and positioning device for household appliance glass panel transfer, characterized in that, include: Rack (1); The conveying unit (2) includes a transmission rod (21) rotatably mounted on both sides of the frame (1), and a conveying roller (22) is fixedly mounted on both sides of the transmission rod (21). A drive assembly (23) is provided between the two sides of the transmission rod (21). The correction device (4) is provided in two sets, and the two sets of correction devices (4) are arranged between the conveying rollers (22) on both sides. The tensioning unit (3) is disposed between the correction devices (4) on both sides.

2. The PET film conveying and positioning device for home appliance glass panel transfer according to claim 1, characterized in that: The surface of the conveying roller (22) is processed with anti-slip texture.

3. The PET film conveying and positioning device for home appliance glass panel transfer printing according to claim 1, characterized in that: The drive assembly (23) includes a dual-axis motor (231) mounted on the frame (1). Both ends of the dual-axis motor (231) are connected to a coupling (232). A bevel gear set (233) is provided between the transmission rod (21) and the coupling (232) on the same side. Brackets (234) are also fixedly installed on both sides of the frame (1), and the couplings (232) on both sides are rotatably connected to the brackets (234) on both sides respectively.

4. The PET film conveying and positioning device for home appliance glass panel transfer according to claim 3, characterized in that: The drive assembly (23) and the conveying roller (22) are respectively located on both sides of the frame (1).

5. The PET film conveying and positioning device for home appliance glass panel transfer according to claim 1, characterized in that: The correction device (4) includes a frame (41) fixedly installed at the bottom of the frame (1). A single-direction screw (42) is rotatably installed on the frame (41). A first motor (43) is installed on the frame (41), and the output shaft of the first motor (43) is connected to the single-direction screw (42). A movable seat (44) is threaded onto the single-direction screw (42). A vertical rod (45) is fixedly installed on the top of the movable seat (44). A plug groove (451) is opened on the top of the vertical rod (45). Limiting grooves (452) are opened on both sides of the plug groove (451). The frame (46) is provided with an inverted L-shaped structure. A plug rod (461) adapted to the plug groove (451) is fixedly installed at the bottom of the frame (46). Placement holes are opened on both sides of the plug rod (461). A spring (462) is fixedly installed in the placement hole. A limiting block (463) adapted to the limiting groove (452) is connected to the outer end of the spring (462). An installation rod (47) is also fixedly installed on the top of the moving seat (44). A docking hole adapted to the installation rod (47) is opened on the top of the frame (46). A correction roller (48) is rotatably installed on the installation rod (47).

6. The PET film conveying and positioning device for home appliance glass panel transfer according to claim 5, characterized in that: The inner walls of the top of the movable seat (44) and the top of the frame plate (46) are evenly provided with a number of mounting holes (441). A ball bearing (442) is rolled in the mounting hole (441). The maximum depth of the mounting hole (441) is greater than the radius of the ball bearing (442) and less than the diameter of the ball bearing (442). The top and bottom of the correction roller (48) are in contact with the ball bearing (442) on the upper and lower sides, respectively.

7. The PET film conveying and positioning device for home appliance glass panel transfer according to claim 1, characterized in that: The tensioning unit (3) includes a pad (31) fixedly installed on the top of the frame (1). Upright plates (32) are fixedly installed on both sides of the bottom of the pad (31). A double-rotating screw (33) is rotatably installed between the upright plates (32) on both sides. A second motor (34) is provided on the frame (1). The output shaft of the second motor (34) is connected to the double-rotating screw (33). An upper support (35) is threadedly connected to both sides of the double-rotating screw (33). The top of the upper support (35) is in contact with the inner wall of the top of the pad (31). A movable frame (36) is provided below the pad (31). Two lower supports (37) are fixedly installed on the top of the movable frame (36). A connecting rod (38) is hinged between the upper support (35) and the lower support (37) on the same side. An adjusting roller (39) is rotatably installed at the bottom of the movable frame (36).

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