Full-automatic medical depth-limiting sleeve transfer printing device

Abstract

The invention discloses a full-automatic medical depth-limiting sleeve transfer printing device which comprises a mounting seat, a transfer printing die holder is mounted on the mounting seat, a guide frame is arranged above the transfer printing die holder, a first air cylinder is mounted on the guide frame, a moving seat is slidably mounted on the guide frame, and a second air cylinder is mounted on the moving seat. A transfer printing assembly connected and matched with the first air cylinder is installed on the moving base, and a supporting base is fixedly installed on the installation base. The first air cylinder is matched with the moving base and the auxiliary base for improvement, the inflation and deflation assembly is matched with the driving assembly, inflation and deflation and driving rotation of the adjustable positioning clamping rod are achieved, clamping and reverse rotation of the depth limiting sleeve are facilitated, single-station secondary printing is achieved, the printing efficiency is improved, and the printing quality is improved while the efficiency is improved. Based on the improvement, the structure of the whole device can be simplified, the use and maintenance cost is reduced, and the advantages of cost reduction and efficiency improvement are achieved.

Description

Technical Field

[0001] This invention relates to the field of medical device manufacturing technology, specifically to a fully automated medical depth-limited cannula transfer printing device. Background Technology

[0002] The depth-limited sleeve pad printing device is a manufacturing equipment used in medical device production. It is primarily used for printing on medical depth-limited sleeves. This device utilizes advanced automation technology to achieve rapid and precise pad printing on the sleeves, improving production efficiency and printing quality. Existing depth-limited sleeve pad printing equipment and processes mainly include the following aspects: an automatic feeding system, used to automatically feed the medical depth-limited sleeves to be printed into the machine, ensuring the continuity and stability of the production line; a pad printing system, which prints on the sleeve surface using specialized ink and a pad printing plate. The pad printing system often employs high-precision transmission and positioning devices to ensure printing accuracy and repeatability, and is used for automated control and monitoring of the entire device, enabling the setting and adjustment of printing parameters, as well as fault diagnosis and alarm functions; a dust removal system, necessary to purify the air and maintain a clean and safe working environment due to the dust and exhaust gas generated during the printing process; and a conveying system, used to transport the printed medical depth-limited sleeves out of the device to the next production stage.

[0003] Among them, such as Figure 1 and Figure 2 The conventional fully automatic medical depth-limited cannula printing device shown generally includes a rotating disk C and several clamping seats D equidistantly mounted on the rotating disk C. The clamping seats have a base with multiple guide grooves, inside which are set long pins for inserting depth-limited cannulas. The rotating disk C is driven to rotate continuously at a fixed angle. The feeding mechanism feeds the initial clamping seats D, clamping the cannulas onto the clamping seats in a number equal to the number of long pins (the cannulas are placed on the long pins, so that they are located inside the guide grooves). Then, as the rotating disk C rotates, the cannulas are printed in the printing section A and dried in the drying section E in sequence. Then, the flipping section B flips the cannulas 180 degrees and prints the other side of the cannulas again in the next printing section A. After drying again, the cannulas are inspected by the printing inspection section and, if qualified, are unloaded by a mechanical gripper.

[0004] As described above, since the sleeve is cylindrical and requires secondary flipping printing, the existing device structure requires two pad printing sections A and two drying sections E to cooperate with two flipping sections B for rotation. This results in a bulky overall device structure, higher component costs, and significantly increased maintenance difficulty. Furthermore, repetitive processes require repetitive components for repeated operations, leading to a decrease in the overall production efficiency of the device. Summary of the Invention

[0005] The purpose of this invention is to provide a fully automated medical depth-limited cannula transfer printing device to solve the aforementioned background technical problems.

[0006] To achieve this objective, the present invention adopts the following technical solution;

[0007] A fully automatic medical depth-limited cannula transfer printing device includes a mounting base, a transfer mold base mounted on the mounting base, a guide frame above the transfer mold base, a first cylinder mounted on the guide frame, a movable seat slidably mounted on the guide frame, a transfer assembly connected and cooperating with the first cylinder mounted on the movable seat, a support base fixedly mounted on the mounting base, a guide rail parallel to the guide frame mounted on the support base, a second cylinder mounted on the guide rail, a movable block fixedly connected to the output end of the second cylinder, a cavity inside the movable block, four adjustable positioning rods rotatably connected to the movable block, an auxiliary seat slidably connected to the top of the guide rail, four guide grooves on the top of the auxiliary seat, the four adjustable positioning rods respectively located inside the four guide grooves, an inflation / deflation assembly installed inside the cavity of the movable block, the inflation / deflation assembly communicating with the four adjustable positioning rods via hoses, and a drive assembly installed inside the movable block, the drive assembly connected and cooperating with the four adjustable positioning rods.

[0008] As a further description of the above technical solution: the adjustable positioning rod has an internal slot, and the outer side of the adjustable positioning rod has several annular grooves that communicate with the inside of the internal slot. An elastic bladder is fixedly connected inside the annular groove.

[0009] As a further description of the above technical solution: the inflation / deflation assembly includes an air tank, an air pump, a diverter pipe, and a pressure relief solenoid valve. The air tank and the diverter pipe are both fixedly installed inside the cavity of the moving block. The air tank and the diverter pipe are connected and fixedly connected through the pressure relief solenoid valve. The air pump is fixedly installed inside the cavity of the moving block. The input end and output end of the air pump are respectively connected and fixedly connected to the air tank and the diverter pipe through pipes. The diverter pipe is connected and fixedly connected to the slots inside the four adjustable positioning rods through flexible hoses.

[0010] As a further description of the above technical solution: the drive assembly includes a miniature cylinder, a connecting block, a toothed plate, and four toothed rings. The miniature cylinder is fixedly installed in the cavity of the moving block and is arranged parallel to the toothed plate. The bottom of the toothed plate is slidably connected to the cavity of the moving block and is arranged perpendicularly to the four adjustable positioning rods. The movable end of the miniature cylinder is fixedly connected to the connecting block. One side of the connecting block is fixedly connected to the toothed plate. The four toothed rings are respectively sleeved on the four adjustable positioning rods, and the outer sides of the four toothed rings are engaged with the bottom toothed plate.

[0011] As a further description of the above technical solution: a limiting groove is formed inside the cavity of the moving block, and the toothed plate is slidably connected to the inside of the limiting groove.

[0012] As a further description of the above technical solution: the auxiliary seat is provided with four elliptical grooves and four notched grooves, the four elliptical grooves and four notched grooves are respectively connected to four guide grooves, the elliptical grooves are located at the top of the auxiliary seat and the middle of the guide grooves, and the notched grooves are located below the guide grooves.

[0013] As a further description of the above technical solution: the end of the adjustable positioning lever away from the moving block is conical and has a smooth end face.

[0014] As a further description of the above technical solution: four smooth conical guide grooves are provided on the side of the auxiliary seat away from the moving block, and the guide grooves are connected to the guide grooves.

[0015] As a further description of the above technical solution: the pad printing assembly includes a third cylinder, a lifting block and a pad printing die head. The third cylinder is fixedly installed on the movable base, the movable end of the third cylinder is vertically downward and fixedly connected to the lifting block, and the bottom of the lifting block is fixedly connected to the pad printing die head.

[0016] As a further description of the above technical solution: the pad printing die head is composed of four interconnected V-shaped single modules, and the V-shaped single module corresponds downward to the position of the elliptical groove.

[0017] Compared with the prior art, the advantages of this invention are:

[0018] This solution improves upon the previous one by using a first cylinder in conjunction with a moving seat and an auxiliary seat. By using an inflation / deflation assembly in conjunction with a drive assembly, the adjustable positioning lever can be inflated / deflated and driven to rotate, making it easier to clamp and reverse the depth-limiting sleeve, enabling single-station secondary printing and improving printing efficiency.

[0019] Furthermore, while improving efficiency, the structure of the entire device can be simplified based on the above improvements, reducing usage and maintenance costs, thus achieving the advantages of cost reduction and efficiency improvement. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the existing three-dimensional structure;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the existing technology.

[0022] Figure 3 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 4 for Figure 3Enlarged structural diagram of section F in the middle;

[0024] Figure 5 This is a top-view cross-sectional structural diagram of the present invention;

[0025] Figure 6 for Figure 5 Enlarged structural diagram of the middle G section;

[0026] Figure 7 for Figure 5 Enlarged schematic diagram of the middle H section;

[0027] Figure 8 This is a schematic diagram of the three-dimensional structure of the adjustable positioning lever of the present invention.

[0028] Explanation of the labels in the diagram:

[0029] 1. Mounting base; 2. Pad printing mold base; 3. Guide frame; 4. First cylinder; 5. Moving base; 6. Pad printing assembly; 61. Third cylinder; 62. Lifting block; 63. Pad printing mold head; 631. V-shaped single module; 7. Support base; 8. Guide rail; 9. Second cylinder; 10. Moving block; 101. Limiting slide groove; 11. Guide groove; 12. Adjustable positioning rod; 121. Empty groove; 122. Annular groove; 123. Elastic bladder; 13. Auxiliary base; 131. Elliptical groove; 132. Notch groove; 14. Guide groove; 15. Inflation / depression assembly; 151. Air tank; 152. Air pump; 153. Diverter pipe; 154. Pressure relief solenoid valve; 16. Drive assembly; 161. Miniature cylinder; 162. Connecting block; 163. Toothed plate; 164. Toothed ring. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention;

[0031] Please see Figures 3-8This invention discloses a fully automatic medical depth-limited cannula transfer printing device, comprising a mounting base 1, a transfer mold base 2 mounted on the mounting base 1, a guide frame 3 above the transfer mold base 2, a first cylinder 4 mounted on the guide frame 3, a movable seat 5 slidably mounted on the guide frame 3, a transfer component 6 connected and cooperating with the first cylinder 4 mounted on the movable seat 5, a support base 7 fixedly mounted on the mounting base 1, a guide rail 8 parallel to the guide frame 3 mounted on the support base 7, a second cylinder 9 mounted on the guide rail 8, and a movable block 10 fixedly connected to the output end of the second cylinder 9. The movable block 10 has an internal cavity. Four adjustable positioning rods 12 are rotatably connected to the movable block 10. The top of the guide rail 8 is slidably connected to the auxiliary seat 13. The top of the auxiliary seat 13 has four guide grooves 14. The four adjustable positioning rods 12 are located inside the four guide grooves 14 respectively. An inflation / deflation assembly 15 is installed inside the cavity of the movable block 10. The inflation / deflation assembly 15 is connected to the inside of the four adjustable positioning rods 12 through a hose. A drive assembly 16 is installed inside the movable block 10. The drive assembly 16 is connected and cooperates with the four adjustable positioning rods 12.

[0032] In this invention, in conjunction with the appendix Figure 1 and Figure 2Mounting base 1 is used to install pad printing mold base 2. First, pad printing mold base 2 is installed with rotating disk C as the center through mounting base 1. Then, guide frame 3 is installed directly above pad printing mold base 2. Based on the original cyclic working mode of rotating disk C, the position of guide rail 8 is adjusted so that the guide groove 14 on auxiliary base 13 is aligned with the groove on the material holder D in its original position. After adjustment, the feeding component is started to feed the material holder D in its initial position. As rotating disk C moves, the feeding holder D is moved sequentially to the adjustment point aligned with the guide groove 14. Then, the second cylinder 9 is started to drive the moving block 10 to move linearly along guide rail 8, so as to push the auxiliary base 13 along the guide rail 8. The guide rail 8 moves linearly, causing the outward end of the depth-limiting sleeve on the material holder D to insert into the auxiliary seat 13 along the guide groove 14, and the opposing adjustable positioning rod 12 to insert into the inside of the depth-limiting sleeve, achieving double-end positioning. The auxiliary seat 13 provides bottom support. Then, the pad printing assembly 6 is activated to first contact the pad printing mold base 2 to apply ink. Then, the first cylinder 4 is activated to push the pad printing assembly 6 to move directly above the auxiliary seat 13. Then, the pad printing assembly 6 is activated to print on the upward side of a section of the depth-limiting sleeve located on the auxiliary seat 13. After printing is completed, the inflation / deflation assembly 15 is activated to inflate the adjustable positioning rod 12, causing it to expand and clamp the depth-limiting sleeve from the inside. This allows the adjustable positioning rod 12 to rotate, and then the drive assembly 16 is activated to move and rotate the adjustable positioning rod 12 180 degrees, causing the depth limiting sleeve to rotate 180 degrees as well. At this time, the unprinted side of the depth limiting sleeve rotates to face the pad printing assembly 6. At this time, the inflation / deflation assembly 15 depressurizes the adjustable positioning rod 12, and then the pad printing assembly 6 is activated to perform secondary printing. This achieves secondary printing in one station, thus reducing or even eliminating the flipping part B that needs to be assembled in the original device, and only one drying part E needs to be retained. The two pad printing parts A shells can be eliminated and replaced with the above-mentioned device to achieve the original structural effect. While reducing the number of components, the downtime at the workstation is reduced and the operating speed is increased. This achieves the advantages of a streamlined device structure, reduced production costs, and improved operating efficiency, thus reducing costs and increasing efficiency. It solves the problem in the existing technology where the sleeve is cylindrical and requires secondary flipping printing. In the existing device structure, two pad printing sections A and two drying sections E are required to cooperate with two flipping sections B for rotation. This results in a bulky overall device structure, high component costs, and increased difficulty in later maintenance. Furthermore, repetitive processes are performed with repetitive components, leading to a decrease in the overall production efficiency of the device.

[0033] Please see Figure 6 and Figure 8The adjustable positioning lever 12 has an internal slot 121, and the outer side of the adjustable positioning lever 12 has several annular slots 122 that communicate with the inside of the slot 121. An elastic bladder 123 is fixedly connected inside the annular slot 122.

[0034] In this invention, the empty groove 121 is used in conjunction with the annular groove 122 and the elastic bladder 123 to pressurize the inside of the empty groove 121, causing the elastic bladder 123 to expand and bulge outward to lock the depth-limiting sleeve sleeved on the outside, so that it can rotate synchronously with the adjustable positioning rod 12, which facilitates flipping adjustment. After adjustment, the pressure inside the empty groove 121 is released, causing the elastic bladder 123 to retract, so that the printing is flat when printing again.

[0035] Please see Figure 5 The inflation / deflation assembly 15 includes an air tank 151, an air pump 152, a diverter pipe 153, and a pressure relief solenoid valve 154. The air tank 151 and the diverter pipe 153 are both fixedly installed inside the cavity of the movable block 10. The air tank 151 and the diverter pipe 153 are connected and fixedly connected through the pressure relief solenoid valve 154. The air pump 152 is fixedly installed inside the cavity of the movable block 10. The input end and the output end of the air pump 152 are respectively connected and fixedly connected to the air tank 151 and the diverter pipe 153 through pipes. The diverter pipe 153 is connected and fixedly connected to the slots 121 inside the four adjustable positioning rods 12 through flexible hoses.

[0036] In this invention, the air inside the air storage tank 151 is extracted by activating the air pump 152, and then injected into the four adjustable positioning levers 12 through the diverter pipe 153 and the hose to achieve pressurization. When pressure relief is required, the pressure relief solenoid valve 154 is opened to allow the high-pressure air inside the empty slot 121 to flow back and restore normal pressure. It should be noted that the inside of the air storage tank 151 is also kept at normal pressure. After the air is extracted, a negative pressure is formed inside, so that after the pressure relief solenoid valve 154 is opened, the inside of the empty slot 121 can quickly return to normal pressure.

[0037] Please see Figure 3 The drive assembly 16 includes a miniature cylinder 161, a connecting block 162, a toothed plate 163, and four toothed rings 164. The miniature cylinder 161 is fixedly installed in the cavity of the moving block 10 and is arranged parallel to the toothed plate 163. The bottom of the toothed plate 163 is slidably connected to the cavity of the moving block 10 and is arranged perpendicularly to the four adjustable positioning rods 12. The movable end of the miniature cylinder 161 is fixedly connected to the connecting block 162. One side of the connecting block 162 is fixedly connected to the toothed plate 163. The four toothed rings 164 are respectively sleeved on the four adjustable positioning rods 12, and the outer sides of the four toothed rings 164 are engaged with the bottom toothed plate 163.

[0038] In this invention, the micro cylinder 161 is activated to drive the connecting block 162 to move linearly, which in turn drives the toothed plate 163 to move linearly, which in turn drives the four toothed rings 164 to rotate synchronously, which in turn drives the four adjustable positioning rods 12 to rotate synchronously by 180 degrees. This converts the linear stroke of the toothed plate 163 into the rotational stroke of the toothed rings 164, thereby enabling the flipping of the depth-limiting sleeve. The simple and low-cost structure replaces the complex flipping mechanism, reducing costs while integrating the functions into a single workstation component, thus achieving the advantages of reducing structural and operating costs.

[0039] Please see Figure 5 and Figure 7 In this case, a limiting groove 101 is provided inside the cavity of the moving block 10, and the toothed plate 163 is slidably connected to the inside of the limiting groove 101.

[0040] In this invention, the travel of the toothed plate 163 is precisely limited by the limiting slide groove 101 to avoid excessive flipping of the adjustable positioning rod 12, thus avoiding printing misalignment and improving the accuracy of the device.

[0041] Please see Figure 5 and Figure 6 The auxiliary seat 13 has four elliptical grooves 131 and four notched grooves 132. The four elliptical grooves 131 and four notched grooves 132 are respectively connected to four guide grooves 14. The elliptical grooves 131 are located at the top of the auxiliary seat 13 and the middle of the guide grooves 14, and the notched grooves 132 are located below the guide grooves 14.

[0042] In this invention, four elliptical grooves 131 are located in the middle of the guide groove 14 and correspond to the top printing assembly 6, so that the back printing section of the depth limiting sleeve is inside the elliptical grooves 131. After printing on one side of the depth limiting sleeve, when the sleeve is flipped inside the guide groove 14, the printed part and the sleeve remain inside the elliptical grooves 131 and will not come into contact with the auxiliary seat 13. This avoids scratching the printed ink during operation and ensures printing quality. At the same time, due to the notch 132 at the bottom, when the depth limiting sleeve is pulled out, the printed part at the bottom will not come into contact with the auxiliary seat 13, ensuring the integrity of the printed pattern.

[0043] Please see Figure 8 The adjustable positioning lever 12 has a tapered end away from the moving block 10 and a smooth end face.

[0044] In this invention, the adjustable positioning lever 12 has a tapered end away from the moving block 10 with a smooth end face, which makes it easier to enter when it is running relative to the depth limiting sleeve and inserted into its interior, and slows down and jams to avoid damage to the depth limiting sleeve and the production of defective products.

[0045] Please see Figure 4 The auxiliary seat 13 has four smooth conical guide grooves 11 on the side away from the moving block 10, and the guide grooves 11 are connected to the guide grooves 14.

[0046] In this invention, the guide groove 11 is connected to the guide groove 14. Since the guide groove 11 is a circular cone, it is convenient to guide the depth-limiting sleeve into the guide groove 14 to achieve smooth connection and avoid damaging the sleeve.

[0047] Please see Figure 3 The pad printing assembly 6 includes a third cylinder 61, a lifting block 62, and a pad printing die head 63. The third cylinder 61 is fixedly installed on the movable base 5. The movable end of the third cylinder 61 is vertically downward and fixedly connected to the lifting block 62. The bottom of the lifting block 62 is fixedly connected to the pad printing die head 63.

[0048] In this invention, the third cylinder 61 is activated to drive the lifting block 62 to move vertically, thereby driving the pad printing head 63 to move vertically stably, so as to achieve contact and ink adhesion between the pad printing head 63 and the pad printing base 2, and then to the four depth-limiting sleeves.

[0049] Please see Figure 4 The pad printing head 63 is composed of four interconnected V-shaped single modules 631, and the V-shaped single modules 631 correspond downward to the position of the elliptical groove 131.

[0050] In this invention, the V-shaped single module 631 corresponds independently to a single depth-limiting sleeve on the adjustable positioning rod 12, enabling multiple sleeves to be transferred and printed in one go, which is efficient and stable. Furthermore, the solution of this invention reduces the number of peripheral devices and can increase the processing capacity per pass by appropriately reducing the rotation speed of the rotating disk C and increasing the number of individual materials loaded on the material holder D. The specific choice can be flexibly made according to the actual needs of the producer.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this invention, based on the technical solutions and improved concepts of the present invention, should be covered within the scope of protection of this invention.

Claims

1. A fully automatic medical depth-limited cannula transfer printing device, comprising a mounting base (1), characterized in that: A pad printing mold base (2) is mounted on the mounting base (1). A guide frame (3) is provided above the pad printing mold base (2). A first cylinder (4) is mounted on the guide frame (3). A movable seat (5) is slidably mounted on the guide frame (3). A pad printing assembly (6) connected and cooperating with the first cylinder (4) is mounted on the movable seat (5). A support base (7) is fixedly mounted on the mounting base (1). A guide rail (8) is mounted on the support base (7) and is arranged parallel to the guide frame (3). A second cylinder (9) is mounted on the guide rail (8). A movable block (10) is fixedly connected to the output end of the second cylinder (9). The movable block (10) contains... The movable block (10) has a cavity, and four adjustable positioning rods (12) are rotatably connected to the movable block (10). The top of the guide rail (8) is slidably connected to the auxiliary seat (13). The top of the auxiliary seat (13) has four guide grooves (14). The four adjustable positioning rods (12) are respectively located inside the four guide grooves (14). An inflation / deflation assembly (15) is installed inside the cavity of the movable block (10). The inflation / deflation assembly (15) is connected to the inside of the four adjustable positioning rods (12) through a hose. A drive assembly (16) is installed inside the movable block (10). The drive assembly (16) is connected and cooperates with the four adjustable positioning rods (12).

2. The fully automatic medical depth-limited cannula transfer printing device according to claim 1, characterized in that: The adjustable positioning lever (12) has an internal slot (121), and the outside of the adjustable positioning lever (12) is provided with several annular slots (122) that communicate with the inside of the internal slot (121). An elastic bladder (123) is fixedly connected inside the annular slot (122).

3. The fully automatic medical depth-limited cannula transfer printing device according to claim 1, characterized in that: The inflation / deflation assembly (15) includes an air tank (151), an air pump (152), a diverter pipe (153), and a pressure relief solenoid valve (154). The air tank (151) and the diverter pipe (153) are both fixedly installed inside the cavity of the moving block (10). The air tank (151) and the diverter pipe (153) are connected and fixedly connected through the pressure relief solenoid valve (154). The air pump (152) is fixedly installed inside the cavity of the moving block (10). The input end and the output end of the air pump (152) are respectively connected and fixedly connected to the air tank (151) and the diverter pipe (153) through pipes. The diverter pipe (153) is connected and fixedly connected to the slots (121) inside the four adjustable positioning rods (12) through flexible hoses.

4. The fully automatic medical depth-limited cannula transfer printing device according to claim 2, characterized in that: The drive assembly (16) includes a miniature cylinder (161), a connecting block (162), a toothed plate (163), and four toothed rings (164). The miniature cylinder (161) is fixedly installed in the cavity of the moving block (10) and is arranged parallel to the toothed plate (163). The bottom of the toothed plate (163) is slidably connected to the cavity of the moving block (10) and is arranged perpendicularly to the four adjustable positioning rods (12). The movable end of the miniature cylinder (161) is fixedly connected to the connecting block (162). One side of the connecting block (162) is fixedly connected to the toothed plate (163). The four toothed rings (164) are respectively sleeved on the four adjustable positioning rods (12). The outer sides of the four toothed rings (164) are engaged with the bottom toothed plate (163).

5. The fully automatic medical depth-limited cannula transfer printing device according to claim 4, characterized in that: The cavity of the movable block (10) has a limiting groove (101) and the toothed plate (163) is slidably connected to the inside of the limiting groove (101).

6. The fully automatic medical depth-limited cannula transfer printing device according to claim 1, characterized in that: The auxiliary seat (13) is provided with four elliptical grooves (131) and four notched grooves (132). The four elliptical grooves (131) and four notched grooves (132) are respectively connected to four guide grooves (14). The elliptical grooves (131) are located at the top of the auxiliary seat (13) and the middle of the guide grooves (14). The notched grooves (132) are located below the guide grooves (14).

7. The fully automatic medical depth-limited cannula transfer printing device according to claim 1, characterized in that: The adjustable positioning lever (12) has a tapered end away from the moving block (10) with a smooth end face.

8. The fully automatic medical depth-limited cannula transfer printing device according to claim 1, characterized in that: The auxiliary seat (13) has four smooth conical guide grooves (11) on one side away from the moving block (10), and the guide grooves (11) are connected to the guide grooves (14).

9. The fully automatic medical depth-limited cannula transfer printing device according to claim 1, characterized in that: The pad printing assembly (6) includes a third cylinder (61), a lifting block (62), and a pad printing die head (63). The third cylinder (61) is fixedly installed on the movable base (5). The movable end of the third cylinder (61) is vertically downward and fixedly connected to the lifting block (62). The bottom of the lifting block (62) is fixedly connected to the pad printing die head (63).

10. A fully automatic medical depth-limited cannula transfer printing device according to claim 6, characterized in that: The pad printing head (63) is composed of four interconnected V-shaped single modules (631), and the V-shaped single modules (631) correspond downward to the position of the elliptical groove (131).

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