Variable-pitch machine head of multi-rubber-head pad printing machine

Abstract

The utility model discloses a variable-pitch machine head of a multi-rubber-head pad printing machine, which relates to the technical field of pad printing machine equipment and comprises a fixed shaft and a plurality of rotation restraining grooves arranged on the fixed shaft, a fixed connecting column is arranged on one side of the fixed shaft, a fixed connecting block is arranged on one side of the fixed shaft, and a fixed limiting block is arranged on one side of the fixed connecting column. A rotating fixing ring is connected to a fixing shaft in a sleeving mode, the rotating fixing ring rotates to drive a rotating sleeve to rotate around the fixing shaft, a fixing connecting groove in the rotating sleeve is aligned with an inserting fixing groove in the fixing shaft, the rotating sleeve is connected with a rotating connecting block, and one end of a rotating torsional spring on the inner side of the rotating sleeve is connected with one side of a rotating restraining groove. The pressing restraining block on the pressing fixing plate abuts against the rotating fixing ring, so that the rotating fixing ring is prevented from loosening or displacing in the working process, the replacement speed and the installation precision of the fixing rubber head in the printing process are guaranteed, and the printing quality is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of pad printing equipment, and in particular to a variable pitch head for a multi-head pad printing machine. Background Technology

[0002] In the modern printing industry, pad printing technology is an important printing method that is widely used for surface decoration and labeling of various products. Multi-head pad printing machines can print multiple colors or patterns in the same printing process, which greatly improves printing efficiency and product aesthetics. Therefore, they are widely used in many fields such as electronics, toys, and gifts. However, traditional multi-head pad printing machines have some obvious defects in actual operation and are difficult to meet diverse printing needs.

[0003] Traditional multi-head pad printing machines are complex to operate during the installation and adjustment of pads. The replacement of pads and the adjustment of spacing often require professional technicians to spend a lot of time on the operation, and the adjustment accuracy is difficult to guarantee. This is undoubtedly a huge problem for production enterprises that need to frequently change the type of printed products. Frequent downtime for adjustments not only affects the production schedule, but also increases labor costs.

[0004] With the increasing market demand for product diversification, printing companies need a type of printing head that can quickly and flexibly adjust different models of printing heads, making it easy to disassemble and assemble the printing heads, thereby improving the replacement speed and installation accuracy. This is a problem that multi-printing head pad printing machines with variable pitch need to solve. Utility Model Content

[0005] In view of the above, with the increasing market demand for product diversification, printing companies need a way to quickly and flexibly adjust different models of pads, making pad disassembly and assembly convenient, thereby improving replacement speed and installation accuracy. This is a problem that multi-pad printing machines with variable pitch heads need to solve, and this utility model is proposed.

[0006] To solve the above technical problems, this utility model provides the following technical solution: a variable pitch printing head for a multi-head pad printing machine, including a fixed shaft and a plurality of rotation constraint grooves opened on the fixed shaft, a fixed connecting column is provided on one side of the fixed shaft, a fixed connecting block is provided on one side of the fixed shaft, and a fixed limiting block is provided on one side of the fixed connecting column;

[0007] The rotating assembly includes a rotating connecting block disposed inside each rotating constraint groove, a rotating sleeve disposed on one side of each rotating connecting block, and a rotating torsion spring disposed inside each rotating sleeve.

[0008] The fixing assembly includes multiple rotating fixing rings mounted on a rotating constraint groove, each rotating fixing ring having a movable constraint block on one side and a fixing rubber head on one side.

[0009] As a preferred embodiment of the variable-pitch head of the multi-head pad printing machine of this utility model, wherein: one end of each rotating torsion spring is connected to one side of the rotating constraint groove, and one end of each rotating torsion spring is connected to the rotating connecting block.

[0010] As a preferred embodiment of the variable-pitch printing head of the multi-head pad printing machine of this utility model, each of the rotating sleeves is provided with two insertion constraint blocks, each of the rotating sleeves has a fixed connection groove on one side, and each rotating fixed ring is provided with two insertion constraint grooves.

[0011] As a preferred embodiment of the variable-pitch printing head of the multi-head pad printing machine of this utility model, each of the insertion constraint blocks is inserted into the corresponding insertion constraint groove on one side, and multiple insertion fixing grooves are opened on one side of the fixed shaft, and each of the movable constraint blocks is inserted into the corresponding insertion fixing groove.

[0012] As a preferred embodiment of the variable-pitch printing head of the multi-head pad printing machine of this utility model, wherein: a fixed constraint groove is provided on the fixed limiting block, a pressing and fixing plate is provided inside the fixed constraint groove, a pressing constraint groove is provided on the fixed shaft, a fixed connection groove is provided on each of the rotating sleeves, and a pressing and fixing groove is provided on each of the rotating fixing rings.

[0013] As a preferred embodiment of the variable-pitch printing head of the multi-head pad printing machine of this utility model, wherein: the pressing and fixing plate is inserted into the pressing constraint groove and the inner side of the multiple pressing and fixing grooves, and multiple pressing constraint blocks are provided on one side of the pressing and fixing plate, and each pressing constraint block abuts against the corresponding rotating fixing ring.

[0014] As a preferred embodiment of the variable-pitch printing head of the multi-head pad printing machine of this utility model, the pressing and fixing plate is provided with two rotating studs on one side, and one end of each rotating stud passes through the pressing and fixing plate and is respectively inserted into the inner side of the fixing limit block and the fixing connecting block.

[0015] The beneficial effects of this utility model are:

[0016] The rotating retaining ring is fitted onto the fixed shaft. The rotation of the retaining ring will cause the rotating sleeve to rotate around the fixed shaft. The fixed connecting groove on the rotating sleeve will align with the insertion fixing groove on the fixed shaft. The rotating sleeve is connected to the rotating connecting block. One end of the rotating torsion spring on the inner side of the rotating sleeve is connected to one side of the rotating constraint groove. The pressing constraint block on the pressing plate abuts against the rotating retaining ring, thereby preventing the rotating retaining ring from loosening or shifting during operation. This ensures the speed and installation accuracy of the fixed rubber head replacement during the printing process, thus ensuring printing quality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a partial structural diagram of the present utility model.

[0020] Figure 3 This is a schematic diagram of the fixed shaft structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the rotating torsion spring structure of this utility model.

[0022] Figure 5 This is a schematic diagram of the rotating sleeve structure of this utility model.

[0023] Figure 6 This is a schematic diagram of the rotating fixed ring structure of this utility model.

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

[0025] 1. Fixed shaft; 2. Rotation constraint groove; 3. Rotation connecting block; 4. Rotation sleeve; 5. Fixed connecting groove; 6. Insertion constraint block; 7. Rotation torsion spring; 8. Press constraint groove; 9. Fixed connecting block; 10. Fixed connecting column; 11. Fixed limit block; 12. Fixed constraint groove; 13. Rotation fixing ring; 14. Movable constraint block; 15. Press fixing groove; 16. Insert constraint groove; 17. Press fixing plate; 18. Press constraint block; 19. Rotation stud; 20. Fixed rubber head; 21. Insert fixing groove. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Example 1

[0028] Reference Figure 1-4This is the first embodiment of the present invention, which provides a variable pitch printing head for a multi-head pad printing machine, including a fixed shaft 1 and a plurality of rotation constraint grooves 2 opened on the fixed shaft 1. A fixed connecting post 10 is provided on one side of the fixed shaft 1, a fixed connecting block 9 is provided on one side of the fixed shaft 1, and a fixed limiting block 11 is provided on one side of the fixed connecting post 10. The fixed shaft 10 includes a rotation connecting block 3 located inside each rotation constraint groove 2, a rotation sleeve 4 is provided on one side of each rotation connecting block 3, a rotation torsion spring 7 is provided inside each rotation sleeve 4, one end of each rotation torsion spring 7 is connected to one side of the rotation constraint groove 2, and one end of each rotation torsion spring 7 is connected to the rotation connecting block 3.

[0029] Each rotating sleeve 4 is provided with two insertion constraint blocks 6, and a fixed connection groove 5 is opened on one side of each rotating sleeve 4. Each rotating fixed ring 13 is provided with two insertion constraint grooves 16. Each insertion constraint block 6 is inserted into the inner side of the corresponding insertion constraint groove 16 on one side. Multiple insertion fixing grooves 21 are opened on one side of the fixed shaft 1, and each movable constraint block 14 is inserted into the inner side of the corresponding insertion fixing groove 21.

[0030] Example 2

[0031] Reference Figure 3-6 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that it includes multiple rotating fixing rings 13 installed on the rotating constraint groove 2. Each rotating fixing ring 13 has a movable constraint block 14 on one side and a fixing rubber head 20 on one side. A fixing constraint groove 12 is opened on the fixing limit block 11. A pressing fixing plate 17 is provided inside the fixing constraint groove 12. A pressing constraint groove 8 is opened on the fixing shaft 1. A fixing connection groove 5 is opened on each rotating sleeve 4 and a pressing fixing groove 15 is opened on each rotating fixing ring 13.

[0032] The pressing and fixing plate 17 is inserted into the pressing constraint groove 8 and the inner side of multiple pressing and fixing grooves 15. Multiple pressing constraint blocks 18 are provided on one side of the pressing and fixing plate 17. Each pressing constraint block 18 abuts against the corresponding rotating fixing ring 13. Two rotating studs 19 are provided on one side of the pressing and fixing plate 17. One end of each rotating stud 19 passes through the pressing and fixing plate 17 and is inserted into the inner side of the fixing limit block 11 and the fixing connecting block 9 respectively.

[0033] When installing the variable-pitch head of the multi-head pad printing machine, first, the rotating fixed ring 13 is sleeved on the fixed shaft 1. The rotating fixed ring 13 can rotate on the fixed shaft 1. The movable constraint block 14 on one side of the rotating fixed ring 13 is initially positioned with the fixed connection groove 5 on the rotating sleeve 4. The movable constraint block 14 is inserted into the inside of the fixed connection groove 5. At the same time, the insertion constraint block 6 on the rotating sleeve 4 is inserted into the inside of the insertion constraint groove 16 on the rotating fixed ring 13.

[0034] At this point, the initial connection between the rotating fixed ring 13 and the rotating sleeve 4 is completed, ensuring that their relative positions are stable. Since the rotating fixed ring 13 is sleeved on the fixed shaft 1, and the rotating fixed ring 13 and the rotating sleeve 4 are connected by the insertion constraint block 6 and the insertion constraint groove 16, the rotation of the rotating fixed ring 13 will drive the rotating sleeve 4 to rotate around the fixed shaft 1. After the rotating fixed ring 13 rotates 180 degrees, the fixed connection groove 5 on the rotating sleeve 4 will be aligned with the insertion fixed groove 21 on the fixed shaft 1.

[0035] At this time, the movable constraint block 14 can move from the fixed connection groove 5 and be inserted into the inner side of the insertion fixed groove 21. The rotating connection block 3 is located inside the rotating constraint groove 2. The rotating sleeve 4 is connected to the rotating connection block 3. One end of the rotating torsion spring 7 inside the rotating sleeve 4 is connected to one side of the rotating constraint groove 2, and the other end is connected to the rotating connection block 3. During the process of the rotating fixed ring 13 driving the rotating sleeve 4 to rotate, the rotating torsion spring 7 plays the role of providing rebound force.

[0036] When the rotating fixed ring 13 rotates, causing the rotating sleeve 4 to rotate, the rotating torsion spring 7 undergoes elastic deformation and stores elastic potential energy. When the rotating fixed ring 13 stops rotating and is fixed in a new position, the rebound force of the rotating torsion spring 7 helps to maintain the stability of the rotating sleeve 4 and the rotating fixed ring 13, preventing them from rotating unexpectedly due to external vibrations and other factors, and ensuring their stability.

[0037] A fixing constraint groove 12 is provided on the fixing limit block 11 in the fixing assembly. A pressing fixing plate 17 is provided in the groove. The pressing fixing plate 17 is fixed between the fixing limit block 11 and the fixing connecting block 9 by two rotating studs 19. The pressing constraint block 18 on the pressing fixing plate 17 abuts against the rotating fixing ring 13. The pressing fixing plate 17 is inserted into the pressing constraint groove 8 of the fixing shaft 1 and the pressing fixing groove 15 of the rotating fixing ring 13.

[0038] This structural design further enhances the stability of the rotating fixed ring 13 on the fixed shaft 1, preventing the rotating fixed ring 13 from loosening or shifting during operation, ensuring the positional accuracy of the fixed rubber head 20 during the printing process, and thus ensuring printing quality.

[0039] The remaining structure is the same as that in Example 1.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A multi-head pad printer variable pitch head, characterized by: The utility model provides a fixed shaft (1) and a plurality of rotation restriction grooves (2) are set up on the fixed shaft (1), one side of the fixed shaft (1) is equipped with fixed connecting column (10), one side of the fixed shaft (1) is equipped with fixed connecting block (9), one side of the fixed connecting column (10) is equipped with fixed limiting block (11), Rotating assembly, including the rotating connecting block (3) that is equipped in each rotation restriction groove (2) inside, one side of each rotating connecting block (3) is equipped with rotating sleeve (4), rotating torsional spring (7) is equipped in each rotating sleeve (4) inside, Fixed assembly, including a plurality of rotating fixed rings (13) installed on rotation restriction groove (2), one side of each rotating fixed ring (13) is equipped with movable restriction block (14), one side of each rotating fixed ring (13) is equipped with fixed rubber head (20).

2. A multi-head pad printer variable pitch head according to claim 1, wherein: One end of each rotating torsional spring (7) is connected with one side of rotation restriction groove (2), one end of each rotating torsional spring (7) is connected with rotating connecting block (3).

3. A multi-head pad printer variable pitch head according to claim 2, wherein: Two plug-in restriction blocks (6) are arranged on each rotating sleeve (4), a fixed connecting groove (5) is formed on one side of each rotating sleeve (4), two plug-in restriction grooves (16) are arranged on each rotating fixed ring (13).

4. A multi-head pad printer variable pitch head according to claim 3, wherein: Each plug-in restriction block (6) is inserted into the corresponding plug-in restriction groove (16) on one side, a plurality of plug-in fixed grooves (21) are formed on one side of the fixed shaft (1), and each movable restriction block (14) is inserted into the corresponding plug-in fixed groove (21).

5. A multi-head pad printer variable pitch head according to claim 1, wherein: A fixed restriction groove (12) is formed on the fixed limiting block (11), a pressing fixed plate (17) is arranged in the fixed restriction groove (12), a pressing restriction groove (8) is formed on the fixed shaft (1), a fixed connecting groove (5) is formed on each rotating sleeve (4), and a pressing fixed groove (15) is formed on each rotating fixed ring (13).

6. A multi-head pad printer variable pitch head according to claim 5, wherein: The pressing fixed plate (17) is inserted into the pressing restriction groove (8) and the plurality of pressing fixed grooves (15) on one side, a plurality of pressing restriction blocks (18) are arranged on one side of the pressing fixed plate (17), and each pressing restriction block (18) abuts against the corresponding rotating fixed ring (13).

7. A multi-head pad printer variable pitch head according to claim 6, wherein: Two rotating studs (19) are arranged on one side of the pressing fixed plate (17), and one end of each rotating stud (19) penetrates the pressing fixed plate (17) and is then inserted into the fixed limiting block (11) and the fixed connecting block (9) on the inside.

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