Multi-degree-of-freedom printing mechanical arm for handbag printing all-in-one machine

Abstract

The present application relates to the technical field of manipulator, specifically to a multi-degree-of-freedom printing mechanical arm for handbag printing all-in-one machine, comprising: a moving assembly and a printing assembly; the moving assembly comprises a sliding block sliding horizontally; the printing assembly comprises a connecting block, a printing body is arranged below the connecting block, and the symmetrical surfaces of the printing body are kept inclined; a brush roller is rotatably installed outside the arc surface of the printing body, and the rotation direction of the brush roller is opposite to the rotation direction of the printing body; the beneficial effects are as follows: the printing body is rotatably installed below the connecting block, the printing body is a columnar structure with a fan-shaped cross section, a printing plate is arranged in the middle of the arc surface of the printing body, the printing plate can be used for rolling printing, a brush roller is further arranged outside the arc surface of the printing body, the rolling rotation direction of the brush roller is opposite to that of the printing body, when the printing body rolls, the brush roller can clean and stretch the surface of the handbag, so as to ensure the flatness of the surface of the handbag and improve the quality of the printing finished product.

Description

Technical Field

[0001] This invention relates to the field of robotic arm technology, specifically a multi-degree-of-freedom printing robotic arm for a tote bag printing machine. Background Technology

[0002] Printing robots are a type of industrial robot. Their robotic arms have a high degree of freedom and can perform rapid printing operations on shopping bags.

[0003] In the prior art, shopping bags are usually placed on the surface of a conveyor belt, and a printing robot arm drives the printing plate to press the shopping bag, and then a scraper prints the printing ink onto the surface of the shopping bag.

[0004] However, currently, when shopping bags are transported, if defects such as wrinkles or bends appear on their surface, the robotic arm directly presses the printing plate onto the bag surface, making it difficult to form a clear and complete printed pattern, resulting in poor quality of the printed product. Therefore, this invention proposes a multi-degree-of-freedom printing robotic arm for an integrated shopping bag printing machine to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-degree-of-freedom printing robotic arm for a tote bag printing machine, so as to solve the problem mentioned in the background art that the printing quality will deteriorate when wrinkles or bending defects appear on the surface of the tote bag.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-degree-of-freedom printing robotic arm for a tote bag printing integrated machine, the robotic arm comprising: a moving component and a printing component;

[0007] The moving component includes a horizontally sliding block on which a vertical cylinder is mounted;

[0008] The printing assembly includes a connecting block, which is fixedly installed at the lower end of the vertical cylinder. A horizontally set fixed shaft is fixedly installed on the connecting block. A printing body is set below the connecting block. The printing body is a columnar structure with a fan-shaped cross-section. The upper end of the printing body is rotatably connected to the fixed shaft. A printing plate is set in the middle of the arc-shaped surface of the printing body. The symmetrical surface of the printing body is kept inclined.

[0009] A brush roller is rotatably mounted on the outer side of the arc-shaped surface of the printed body. The brush roller is at the same horizontal height as the lowest point of the arc-shaped surface of the printed body, and the rotation direction of the brush roller is opposite to the rotation direction of the printed body.

[0010] Preferably, the printed body is hollow and configured as a printing cavity, and an avoidance notch is provided at the upper end of the printed body. The connecting block is located in the avoidance notch, and torsion spring seats are fixedly connected to both sides of the connecting block. A storage groove is provided on the side of the torsion spring seat, and a reset torsion spring is provided in the storage groove. The two ends of the reset torsion spring are fixedly connected to the torsion spring seat and the printed body, respectively, and the reset torsion spring is sleeved on the outside of the fixed shaft.

[0011] Preferably, the printing cavity is provided with an mounting plate, which is configured as an arc shape consistent with the arc surface of the printing body and fits against the inner wall of the printing cavity. A notch is opened through the middle of the arc surface of the printing body, and a material groove is formed by the middle recess of the mounting plate. The printing plate is fixedly embedded in the bottom of the material groove, and the printing plate passes through the notch and is flush with the arc surface of the printing body.

[0012] Preferably, a scraper plate located inside the printing cavity is provided below the connecting block, a connecting plate is fixedly connected to the upper side of the scraper plate, and a material plate cylinder is fixedly installed between the connecting plate and the connecting block. The material plate cylinder drives the scraper plate to move vertically and fit against the inner wall of the printing plate.

[0013] Preferably, a distributor is fixedly installed on the side of the scraper, the length of the distributor is the same as that of the scraper, the distributor is hollow inside and has multiple material inlets that are linearly distributed at equal intervals on its lower side, and a feeding hose is connected to the upper side of the distributor.

[0014] Preferably, connecting sleeves are fixedly installed at both ends of the fixed shaft, connecting frames are fixed on the connecting sleeves, and the connecting frames are located on the outside of the printed body. A reversing shaft is rotatably installed between the lower ends of the two connecting frames, and rollers are rotatably installed at both ends of the reversing shaft. The brush roller is fixedly connected to the reversing shaft, and a baffle is provided on the outside of the brush roller to maintain a fixed connection with the lower end of the connecting frame. The connecting frame is in the shape of a "7" and a reinforcing plate is provided in the middle.

[0015] Preferably, a limiting stop is fixedly connected between the upper ends of the two connecting frames, and the limiting stop abuts against the middle of the upper surface of the printed body.

[0016] Preferably, the lower half of the connecting frame is provided with a transmission component, the transmission component includes a linkage shaft that is rotatably connected to the connecting frame, a driving wheel and a transmission gear are fixedly connected to both ends of the linkage shaft respectively, a driven wheel is fixedly connected to the end of the reversing shaft, and the driven wheel and the driving wheel are connected by a transmission belt.

[0017] Preferably, both ends of the printed body are provided with arc-shaped recessed grooves, and the center of the recessed grooves coincides with the fixed shaft. The inner wall of the recessed groove near the fixed shaft is provided with arc-shaped teeth, and the transmission gear is located in the inner cavity of the recessed groove and meshes with the arc-shaped teeth for transmission.

[0018] Preferably, a horizontal lead screw and a guide rod that are parallel to each other are movably connected through the sliding block, and the horizontal lead screw drives the sliding block to slide along its own length direction. A mounting base is fixedly connected to the side of the sliding block, and two vertical cylinders are provided and fixedly installed on the surface of the mounting base.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] This invention features a printing body rotatably mounted below a connecting block. The printing body is a columnar structure with a fan-shaped cross-section. A printing plate is positioned in the center of the arc-shaped surface of the printing body. After the arc-shaped surface of the printing body is pressed against the surface of the shopping bag, the printing plate can perform rolling printing. A brush roller is also positioned on the outer side of the arc-shaped surface of the printing body. The brush roller rotates in the opposite direction to the rolling of the printing body. When the printing body rolls, the brush roller can clean and smooth the surface of the shopping bag, thereby ensuring the flatness of the shopping bag surface and improving the quality of the printed product. Attached Figure Description

[0021] Figure 1 This is a side view of the overall structure of the present invention;

[0022] Figure 2 This is a three-dimensional schematic diagram of the overall structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the connection between the connecting block and the scraper plate of the present invention;

[0024] Figure 4 This is a three-dimensional schematic diagram of the printed body structure of the present invention;

[0025] Figure 5 This is a three-dimensional schematic diagram of the mounting plate structure of the present invention;

[0026] Figure 6 This is a side sectional view of the overall structure of the present invention;

[0027] Figure 7 This is a three-dimensional schematic diagram of the connecting frame structure of the present invention;

[0028] Figure 8 This is an exploded view of the transmission component structure of the present invention;

[0029] Figure 9 This is a three-dimensional schematic diagram of the moving component structure of the present invention.

[0030] In the diagram: 1. Moving component; 101. Sliding block; 102. Mounting base; 103. Vertical cylinder; 104. Horizontal lead screw; 105. Guide rod; 2. Printing component; 3. Connecting block; 31. Torsion spring seat; 32. Receiving groove; 33. Return torsion spring; 4. Fixed shaft; 5. Printing body; 51. Printing cavity; 52. Notch; 53. Recessed groove; 54. Arc tooth; 55. Avoidance notch; 6. Mounting plate; 61 62. Material trough; 73. Printing plate; 84. Scraper; 95. Material plate cylinder; 16. Connecting plate; 17. Distributor; 28. Feeding hose; 19. Connecting frame; 10. Reverse shaft; 11. Brush roller; 12. Baffle; 13. Limiting rod; 14. Connecting sleeve; 15. Reinforcing plate; 16. Roller; 19. Transmission component; 10. Drive wheel; 11. Driven wheel; 12. Drive belt; 13. Linkage shaft; 14. Transmission gear. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "a," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] For purposes of simplicity and illustration, the principles of the embodiments are described primarily by way of example. In the following description, numerous specific details are set forth to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures have not been described in detail to avoid unnecessarily obscuring these embodiments. Furthermore, all embodiments can be used in combination with each other.

[0035] Please see Figures 1 to 9 The present invention provides a technical solution:

[0036] Example 1: A multi-degree-of-freedom printing robotic arm for a tote bag printing machine, the robotic arm includes: a moving component 1 and a printing component 2.

[0037] Specifically, the moving component 1 includes a horizontally sliding block 101, on which a vertical cylinder 103 is mounted. The moving component 1 can adjust its position by sliding horizontally so as to maintain correspondence with the tote bags conveyed on the conveyor belt below.

[0038] Furthermore, the printing component 2 includes a connecting block 3, which is fixedly installed at the lower end of the vertical cylinder 103. The vertical cylinder 103 can adjust the height of the printing component 2 by extending and retracting. Combined with the horizontal sliding of the sliding block 101, this ensures that the connecting block 3 can be adjusted both horizontally and vertically, providing a large degree of adjustment freedom and ensuring accurate alignment with the tote bag. A horizontally set fixed shaft 4 is fixedly installed on the connecting block 3. The fixed shaft 4 itself does not rotate. A printing body 5 is set below the connecting block 3. The printing body 5 is a columnar structure with a fan-shaped cross-section, and the upper end of the printing body 5 is rotatably connected to the fixed shaft 4. Figure 3 and Figure 4 As shown, when the connecting block 3 moves downward, the printed body 5 can press against the surface of the tote bag and roll as the conveyor belt moves. During this process, the arc-shaped surface of the printed body 5 always maintains line contact with the surface of the tote bag. A printing plate 62 is provided in the middle of the arc-shaped surface of the printed body 5. The symmetrical surface of the printed body 5 remains inclined. When the printed body 5 rolls on the surface of the tote bag, the printing plate 62 can print its own pattern onto the surface of the tote bag.

[0039] In addition, a brush roller 82 is rotatably mounted on the outer side of the arc-shaped surface of the printed body 5. The lowest point of the arc-shaped surface of the printed body 5 is at the same horizontal height. That is to say, when the printed body 5 presses on the surface of the shopping bag, the brush on the surface of the brush roller 82 can come into contact with the surface of the shopping bag. The rotation direction of the brush roller 82 is opposite to the rotation direction of the printed body 5. When the printed body 5 rolls, the brush roller 82 can clean the surface of the shopping bag and smooth it out. On the one hand, it avoids dust from affecting the printing effect, and on the other hand, it prevents the shopping bag from wrinkling or bending, thereby improving the quality of the printed product. During the cleaning process of the brush roller 82, the arc-shaped surface of the printed body 5 presses on the surface of the shopping bag, which can prevent the shopping bag from shifting position.

[0040] To reset the printed body 5 after it rolls, the printed body 5 is hollow and configured as a printing cavity 51. An avoidance notch 55 is provided at the upper end of the printed body 5, and the connecting block 3 is located within the avoidance notch 55. The avoidance notch 55 is designed to prevent the printed body 5 from colliding with the connecting block 3 during rolling. Torsion spring seats 31 are fixedly connected to both sides of the connecting block 3, and a receiving groove 32 is provided on the side of the torsion spring seat 31. A reset torsion spring 33 is installed in the receiving groove 32. The two ends of the reset torsion spring 33 are fixedly connected to the torsion spring seat 31 and the printed body 5, respectively. The reset torsion spring 33 is sleeved on the outside of the fixed shaft 4. The reset torsion spring 33 is mainly used to reset the rolling of the connecting block 3, specifically by maintaining the initial position of the printed body 5 as shown in the image. Figure 2 In the tilted state shown, after the printed body 5 moves down and presses against the surface of the tote bag and rolls, the return torsion spring 33 can be compressed. After the printed body 5 moves up, the return torsion spring 33 provides torque to make the printed body 5 rotate in the opposite direction and reset, so as to facilitate rolling the next tote bag.

[0041] To print on the surface of the tote bag, this application also includes an mounting plate 6 disposed within the printing cavity 51. The mounting plate 6 is shaped like an arc, consistent with the arc surface of the printing body 5, and fits against the inner wall of the printing cavity 51. The mounting plate 6 is fixedly connected to the printing body 5. A notch 52 is formed through the center of the arc surface of the printing body 5. A material groove 61 is formed by a recess in the center of the mounting plate 6. The material groove 61 is used to store a certain amount of printing ink. A printing plate 62 is fixedly embedded in the bottom of the material groove 61. The printing plate 62 passes through the notch 52 and remains flush with the arc surface of the printing body 5. Figure 4 , Figure 5 and Figure 6 As shown, during the rolling process of the printed body 5, the printing coating in the inner cavity of the material trough 61 can pass through the printing plate 62 and be printed onto the surface of the handbag. The printed pattern is determined by the pattern on the surface of the printing plate 62.

[0042] To improve the quality of the printed pattern, this application also includes a scraper 7 located in the printing cavity 51 below the connecting block 3. A connecting plate 72 is fixedly connected to the upper side of the scraper 7. A material plate cylinder 71 is fixedly installed between the connecting plate 72 and the connecting block 3. The material plate cylinder 71 drives the scraper 7 to move vertically and adhere to the inner wall of the printing plate 62. When the material plate cylinder 71 extends, it can press the lower side of the scraper 7 against the bottom of the material groove 61—that is, the inner wall of the printing plate 62—and coat the printing ink evenly on the inner wall of the printing plate 62 as the printing body 5 rolls, thereby ensuring that the printed pattern on the surface of the tote bag is uniform and clear.

[0043] For conveying printing ink, this application also includes a distributor 73 fixedly installed on the side of the scraper 7. The distributor 73 has the same length as the scraper 7, is hollow inside, and has multiple linearly distributed, equally spaced material inlets on its lower side. A feeding hose 74 is connected to the upper side of the distributor 73. Figure 3 As shown, the feeding hose 74 can deliver external paint to the inner cavity of the distributor 73 and spread it evenly on the lower side of the scraper 7, thereby avoiding uneven paint thickness on the side of the scraper 7 and affecting the printing quality of the pattern.

[0044] To install the brush roller 82, this application also includes connecting sleeves 84 fixedly installed at both ends of the fixed shaft 4, connecting frames 8 fixed on the connecting sleeves 84, and the connecting frames 8 located on the outside of the printing body 5. A reversing shaft 81 is rotatably installed between the lower ends of the two connecting frames 8, and rollers 86 are rotatably installed at both ends of the reversing shaft 81. The rollers 86 are used to roll on the surface of the conveyor belt. The brush roller 82 is fixedly connected to the reversing shaft 81 to realize the installation of the brush roller 82. A baffle 821 is provided on the outside of the brush roller 82 and is fixedly connected to the lower end of the connecting frame 8. The baffle 821 is provided to prevent dust from being swept onto the surface of the printing plate 62 when the brush roller 82 rotates. The connecting frame 8 is in the shape of a "7" and a reinforcing plate 85 is provided in the middle to improve the overall strength of the connecting frame 8.

[0045] To limit the initial position of the printed body 5, this application further includes a limiting stop 83 fixedly connected between the upper ends of the two connecting frames 8, with the limiting stop 83 abutting against the middle of the upper surface of the printed body 5, such as... Figure 7 and Figure 2 As shown, the limit stop 83 is used to limit the initial position of the printed body 5, preventing the return torsion spring 33 from having excessive torque and rotating the printed body 5 to the upper side of the connecting block 3, as shown. Figure 1 As shown, when the printed body 5 moves downward, the edge of its curved surface can just press against the surface of the handbag.

[0046] To drive the brush roller 82 to rotate, this application also includes a transmission component 9 provided in the lower half of the connecting frame 8. The transmission component 9 includes a linkage shaft 94 rotatably connected to the connecting frame 8. A driving wheel 91 and a transmission gear 95 are fixedly connected to both ends of the linkage shaft 94, respectively. A driven wheel 92 is fixedly connected to the end of the reversing shaft 81, and the driven wheel 92 and the driving wheel 91 are connected by a transmission belt 93. Figure 8 As shown, when the drive wheel 91 rotates, it can drive the driven wheel 92 to rotate, thereby driving the reverse shaft 81 and the brush roller 82 to rotate.

[0047] To eliminate wrinkles on the surface of the tote bag, this application also has arc-shaped recessed grooves 53 on both ends of the printed body 5, and the center of the recessed groove 53 coincides with the fixed shaft 4. The inner wall of the recessed groove 53 near the fixed shaft 4 is provided with arc-shaped teeth 54. The transmission gear 95 is located in the inner cavity of the recessed groove 53 and meshes with the arc-shaped teeth 54 for transmission. Since the connecting frame 8 itself does not move, but the printed body 5 can roll on the conveyor belt, when the printed body 5 rolls, the arc-shaped teeth 54 can drive the transmission gear 95 to rotate, thereby driving the brush roller 82 to rotate in the opposite direction to the printed body 5, so as to clean and smooth the tote bag and eliminate wrinkles.

[0048] To provide a detailed description of the structure of the movable component 1, this application further includes a horizontal lead screw 104 and a guide rod 105 that are movably connected through the sliding block 101. The horizontal lead screw 104 drives the sliding block 101 to slide along its own length. The sliding block 101 has an internal thread that is compatible with the horizontal lead screw 104. When the horizontal lead screw 104 rotates, it can drive the sliding block 101 to slide. The guide rod 105 can improve the stability of the sliding block 101. A mounting base 102 is fixedly connected to the side of the sliding block 101. Two vertical cylinders 103 are provided and fixedly installed on the surface of the mounting base 102, thereby ensuring that the connecting block 3 can move both horizontally and vertically.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-degree-of-freedom printing robotic arm for a tote bag printing integrated machine, characterized in that: The robotic arm includes: a moving component (1) and a printing component (2); The moving component (1) includes a horizontally sliding block (101) on which a vertical cylinder (103) is mounted. The printing assembly (2) includes a connecting block (3), which is fixedly installed at the lower end of the vertical cylinder (103). A horizontally arranged fixed shaft (4) is fixedly installed on the connecting block (3). A printing body (5) is provided below the connecting block (3). The printing body (5) is a columnar structure with a fan-shaped cross section. The upper end of the printing body (5) is rotatably connected to the fixed shaft (4). A printing plate (62) is provided in the middle of the arc surface of the printing body (5). The symmetrical surface of the printing body (5) is kept inclined. A brush roller (82) is rotatably mounted on the outer side of the arc surface of the printed body (5). The lowest point of the arc surface of the printed body (5) is at the same horizontal height as the brush roller (82). The rotation direction of the brush roller (82) is opposite to the rotation direction of the printed body (5). Both ends of the fixed shaft (4) are fixedly installed with connecting sleeves (84), and connecting frames (8) are fixed on the connecting sleeves (84). The connecting frames (8) are located on the outside of the printing body (5). A reversing shaft (81) is rotatably installed between the lower ends of the two connecting frames (8), and rollers (86) are rotatably installed at both ends of the reversing shaft (81). The brush roller (82) is fixedly connected to the reversing shaft (81). The lower half of the connecting frame (8) is provided with a transmission component (9). The transmission component (9) includes a linkage shaft (94) that is rotatably connected to the connecting frame (8). The two ends of the linkage shaft (94) are respectively fixedly connected to a drive wheel (91) and a transmission gear (95). The end of the reverse shaft (81) is fixedly connected to a driven wheel (92), and the driven wheel (92) and the drive wheel (91) are connected by a transmission belt (93). The printed body (5) has arc-shaped recessed grooves (53) on both ends, and the center of the recessed groove (53) coincides with the fixed shaft (4). The inner wall of the recessed groove (53) near the fixed shaft (4) is provided with arc-shaped teeth (54). The transmission gear (95) is located in the inner cavity of the recessed groove (53) and meshes with the arc-shaped teeth (54) for transmission.

2. The multi-degree-of-freedom printing robotic arm for a tote bag printing integrated machine according to claim 1, characterized in that: The printing body (5) is hollow inside and is configured as a printing cavity (51). The upper end of the printing body (5) is provided with a clearance notch (55). The connecting block (3) is located inside the clearance notch (55). Both sides of the connecting block (3) are fixedly connected with torsion spring seats (31), and the side of the torsion spring seat (31) is provided with a storage groove (32). The storage groove (32) is provided with a reset torsion spring (33). The two ends of the reset torsion spring (33) are fixedly connected to the torsion spring seat (31) and the printing body (5), respectively. The reset torsion spring (33) is sleeved on the outside of the fixed shaft (4).

3. The multi-degree-of-freedom printing robotic arm for a tote bag printing integrated machine according to claim 2, characterized in that: The printing cavity (51) is provided with an installation plate (6). The installation plate (6) is set in an arc shape that is consistent with the arc surface of the printing body (5) and fits the inner wall of the printing cavity (51). A notch (52) is opened through the middle of the arc surface of the printing body (5). The middle of the installation plate (6) is recessed to form a material groove (61). The printing plate (62) is fixedly embedded in the bottom of the material groove (61). The printing plate (62) passes through the notch (52) and is flush with the arc surface of the printing body (5).

4. The multi-degree-of-freedom printing robotic arm for a handbag printing integrated machine according to claim 1, characterized in that: Below the connecting block (3) is a scraper (7) located in the printing cavity (51). A connecting plate (72) is fixedly connected to the upper side of the scraper (7). A material plate cylinder (71) is fixedly installed between the connecting plate (72) and the connecting block (3). The material plate cylinder (71) drives the scraper (7) to move vertically and fit against the inner wall of the printing plate (62).

5. The multi-degree-of-freedom printing robotic arm for a handbag printing integrated machine according to claim 4, characterized in that: A distributor (73) is fixedly installed on the side of the scraper (7). The length of the distributor (73) is the same as that of the scraper (7). The distributor (73) is hollow inside and has multiple material inlets that are linearly distributed at equal intervals on the lower side. A feeding hose (74) is connected to the upper side of the distributor (73).

6. The multi-degree-of-freedom printing robotic arm for a handbag printing integrated machine according to claim 1, characterized in that: The outer side of the brush roller (82) is provided with a baffle (821) that is fixedly connected to the lower end of the connecting frame (8). The connecting frame (8) is in the shape of a "7" and has a reinforcing plate (85) in the middle.

7. The multi-degree-of-freedom printing robotic arm for a tote bag printing integrated machine according to claim 6, characterized in that: A limit stop bar (83) is fixedly connected between the upper ends of the two connecting frames (8), and the limit stop bar (83) abuts against the middle of the upper surface of the printed body (5).

8. The multi-degree-of-freedom printing robotic arm for a handbag printing integrated machine according to claim 1, characterized in that: The sliding block (101) is movably connected to a horizontal lead screw (104) and a guide rod (105) that are parallel to each other. The horizontal lead screw (104) drives the sliding block (101) to slide along its own length direction. The side of the sliding block (101) is fixedly connected to a mounting base (102). Two vertical cylinders (103) are provided and fixedly installed on the surface of the mounting base (102).

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