CN218905640U - Catheter punching mechanism - Google Patents

Abstract

The utility model discloses a catheter punching mechanism which comprises a workbench, a front-back driving device, a first cylinder assembly and at least one punching device, wherein the first cylinder assembly and the at least one punching device are respectively arranged on the front-back driving device; the punching device comprises a second cylinder assembly, two positioning blocks which are arranged in a left-right movable manner and are provided with positioning holes, a plug rod which is fixed in the positioning holes forwards, two punching tool bits which are respectively arranged on the two positioning blocks correspondingly and are positioned on two sides of the positioning holes, and an elastic piece which is connected to the two positioning blocks and is used for driving the two positioning blocks to be closed and then reset outwards; the first cylinder assembly can be used for driving the two positioning blocks to be close and position the catheter at first, and the second cylinder assembly is used for driving the two positioning blocks to be close again and enabling the punching cutter head to punch the catheter. The utility model can simultaneously punch holes on both sides of the catheter, and has high working efficiency.

Description

Catheter punching mechanism

Technical Field

The utility model relates to the technical field of urinary catheter processing, in particular to a urinary catheter punching mechanism.

Background

Clinically, the situation that the patient cannot urinate by himself often occurs, and urine in the bladder is usually led out by nurses or the patient himself or herself in a catheterization mode. The method inserts a urinary catheter into the bladder via the urethra, thereby draining urine.

At present, disposable catheters generally have a drainage connector at a first end and a side hole at a second end. And in the current manufacturing process of the catheter, a plurality of people choose to use automatic equipment for production. An automatic punching device for urinary catheters, disclosed for example in the grant publication number CN207240374U, specifically disclosed is a device for punching a urinary catheter comprising a table, a rotating plate and at least one punching device mounted on the table; the punching device comprises a support fixed on the workbench, the support comprises two opposite C-shaped vertical plates, an air cylinder mounting plate is fixed between the two C-shaped vertical plates, a plurality of first air cylinders are mounted on the air cylinder mounting plate, a drill bit is arranged on a piston rod of each first air cylinder, and the drill bit is used for hanging on a catheter inserted link to punch holes.

Although the automatic catheter punching device can automatically punch the catheter conveyed by the feeding device, the production effect is improved. There is room for improvement, for example, in that the punching is achieved by lifting the drill head by means of the first cylinder, i.e. it is only possible to punch a hole in one side of the catheter at a time, which would require punching the catheter twice if it were to be punched separately in both sides of the catheter, resulting in a low working efficiency.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model aims to provide the catheter punching mechanism which can simultaneously punch holes on two sides of a catheter in the working process, has high working efficiency and meets the demands of different crowds.

In order to achieve the above object, the technical scheme of the present utility model is as follows:

the catheter punching mechanism comprises a workbench, a front-back driving device, a first air cylinder assembly and at least one punching device, wherein the first air cylinder assembly and the at least one punching device are respectively arranged on the front-back driving device, and the front-back driving device can be used for driving the first air cylinder assembly and the punching device to move back and forth; the punching device comprises a second air cylinder assembly, two positioning blocks which are arranged in a left-right movable manner and are provided with positioning holes, a plug rod which is fixed in the positioning holes forwards, two punching cutter heads which are respectively arranged on the two positioning blocks and are positioned on two sides of the positioning holes correspondingly, and an elastic piece which is connected with the two positioning blocks and is used for driving the two positioning blocks to reset outwards after being closed; the first cylinder assembly can be used for driving the two positioning blocks to be close together and position the catheter at first, and the second cylinder assembly is used for driving the two positioning blocks to be close together again and enabling the punching tool bit to punch the catheter.

Further, the first cylinder assembly comprises a first punching cylinder which is fixedly arranged and a push plate which can move up and down and is connected to an output shaft of the first punching cylinder; an open slot is arranged on the push plate; a positioning piece positioned in the open slot is respectively arranged on the side edges of the two positioning blocks, and positioning inclined planes matched with the positioning pieces are respectively arranged on the two side walls of the open slot; when the first punching cylinder drives the push plate to move upwards, the two locating pieces are pushed to be close by the locating inclined plane, and the two locating pieces are synchronously driven to be close and locate the catheter.

Further, the second air cylinder assembly comprises a second punching air cylinder which is fixedly arranged and two pushing blocks which can move up and down and are respectively connected to an output shaft of the second punching air cylinder; the lower ends of the two pushing blocks are respectively provided with a corresponding first punching inclined plane; the outer ends of the two positioning blocks are respectively provided with a second punching inclined plane matched with the first punching inclined plane; when the second punching cylinder drives the pushing block to move downwards, the first punching inclined plane and the second punching inclined plane are matched to synchronously drive the two positioning blocks to be close together, and the punching cutter head punches the catheter.

Further, the front-back driving device comprises a front-back driving cylinder and a moving plate, wherein the front-back driving cylinder is fixedly arranged, and the moving plate is arranged on the workbench in a front-back movable manner and is connected with an output shaft of the front-back driving cylinder; the first cylinder assembly and the punching device are both mounted on the moving plate.

Further, a sliding rail extending forwards and backwards is arranged on the workbench, and a sliding block is arranged on the sliding rail; the bottom of the moving plate is connected to the sliding block.

Further, a sliding rail extending leftwards and rightwards is arranged on the moving plate, and a sliding block is arranged on the sliding rail; the bottom of the positioning block is connected to the sliding block.

Further, the punching tool bit is a fusion cutter, and each positioning block is connected with a heating rod.

Further, the two punching heads are arranged in a staggered mode.

Further, the side surfaces of the two positioning blocks are respectively provided with an inserting block and an inserting groove which are matched with each other, and the inserting block on one positioning block can be correspondingly inserted into the inserting groove on the other positioning block to form an inserting structure.

Further, the punching device is provided with more than two, and the first cylinder assembly can be used for driving the positioning block in each punching device simultaneously.

The beneficial effects of the utility model are as follows:

(1) According to the utility model, the punching device with the inserted link, the two positioning blocks and the two punching cutters is arranged, so that the two opposite punching cutters can be cut into the catheter by utilizing the inserted link and the positioning blocks to be matched with the first cylinder assembly to enable the positioning blocks to be close and to initially position the catheter to be processed, and then utilizing the second cylinder assembly to enable the positioning blocks to be continuously close, and a hole is punched on two sides of the catheter respectively. Therefore, the utility model can simultaneously punch holes on both sides of the catheter, thereby improving the production efficiency.

(2) According to the utility model, the first punching cylinder and the second punching cylinder are used for respectively driving the positioning block and the punching cutter head to be close twice in the working process, so that the urinary catheter is finally punched, the punching step is more stable by using the inclined guide punching mode of matching the positioning inclined surface with the positioning piece and matching the first punching inclined surface with the second punching inclined surface, and the stability of the positioning block can be further enhanced by matching with the limit of the sliding rail, so that the punched hole of the product is not easy to have the condition of different shapes and sizes, namely the quality is good.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an enlarged view at A of FIG. 1;

FIG. 3 is an exploded view of a partial structure of the present utility model;

FIG. 4 is a schematic diagram of the overall structure of the present utility model;

FIG. 5 is an enlarged view at B of FIG. 4;

fig. 6 is a schematic representation of the utility model in use.

Reference numerals:

1. a work table; 2. front and rear driving means; 21. a front-rear driving cylinder; 22. a moving plate; 3. a punching device; 31. a positioning block; 311. positioning holes; 32. a rod; 33. punching tool bit; 34. a second die cut bevel; 4. a first punching cylinder; 5. a push plate; 51. an open slot; 52. positioning an inclined plane; 6. a positioning piece; 7. a second punching cylinder; 8. a pushing block; 81. a first die cut bevel; 9. a slide rail; 10. a heating rod; 11. inserting blocks; 12. a slot; 13. a urinary catheter; 14. and a feeding mechanism.

Detailed Description

Specific embodiments in accordance with the present disclosure are described in detail below with reference to the various drawings.

As shown in fig. 1-5, a catheter punching mechanism comprises a workbench 1, a front-back driving device 2, a first cylinder assembly and at least one punching device 3 which are respectively arranged on the front-back driving device 2, wherein the front-back driving device 2 can be used for driving the first cylinder assembly and the punching device 3 to move back and forth; the punching device 3 comprises a second cylinder assembly, two positioning blocks 31 which are arranged in a left-right movable way and are provided with positioning holes 311, a plug rod 32 which is fixed in the positioning holes 311 forwards, two punching cutter heads 33 which are respectively arranged on the two positioning blocks 31 correspondingly and are positioned at two sides of the positioning holes 311, and an elastic piece (not shown in the figure) which is connected on the two positioning blocks 31 and is used for driving the two positioning blocks 31 to reset outwards after being mutually closed; the first cylinder assembly can be used for driving the two positioning blocks 31 to be close together for a plurality of distances at first and initially positioning the urinary catheter 13, so that the urinary catheter 13 shakes, the second cylinder assembly can be used for driving the two positioning blocks 31 to be close together again and enabling the punching cutter head 33 to punch the urinary catheter 13, and the punching cutter head 33 can punch the urinary catheter 13. The holes on the two sides of the catheter 13 can be conveniently and stably formed through the arrangement.

1-5, the first cylinder assembly comprises a first punching cylinder 4 fixedly arranged and a push plate 5 capable of moving up and down and connected to an output shaft of the first punching cylinder 4; an open slot 51 is provided on the push plate 5; a positioning piece 6 positioned in the open slot 51 is respectively arranged on the side edges of the two positioning pieces 31, and positioning inclined planes 52 matched with the positioning piece 6 are respectively arranged on the two side walls of the open slot 51; when the first punching cylinder 4 drives the push plate 5 to move upwards, the positioning inclined surface 52 pushes the two positioning pieces 6 to be close, and the two positioning pieces 31 are synchronously driven to be close and initially position the catheter 13, and of course, after the positioning inclined surface 52 and the positioning pieces 6 are loosened, the two positioning pieces 31 can be reset outwards by using the elastic piece, namely move in opposite directions. Through the arrangement, the first punching cylinder 4 can conveniently drive the two positioning blocks 31 to be close for the first time, so that the catheter 13 is positioned.

As shown in fig. 5, for the arrangement of the push plate 5, an extending groove with a width smaller than that of the opening groove 51 and two vertical side walls may be arranged at the lower end of the positioning inclined surface 52, and the opening groove 51 and the extending groove are transited by the positioning inclined surface 52. After the positioning pieces 6 slide into the extending grooves from the opening grooves 51 through the positioning inclined surfaces 52 in the upward moving process of the push plate 5, the distance between the two positioning pieces 6 and the two positioning blocks 31 is fixed, and the approach is not needed.

In this embodiment, the first punching cylinder 4 pushes the two positioning members 6 to move by using the push plate 5 so as to synchronously drive the positioning blocks 31. However, it should be understood by those skilled in the art that the positioning inclined surface 52 of the push plate 5 may also directly act on the two positioning blocks 31 to achieve the effect of driving the two positioning blocks 31 to move, i.e. to cancel the positioning member 6.

In this embodiment, the positioning member 6 is a bearing, that is, the positioning member 6 is rotatable, so that the positioning member 6 can be contacted with the positioning inclined surface 52 more smoothly.

As shown in fig. 2, the second cylinder assembly comprises a second punching cylinder 7 which is fixedly arranged and two pushing blocks 8 which can move up and down and are respectively connected to the output shafts of the second punching cylinder 7; the lower ends of the two pushing blocks 8 are respectively provided with a corresponding first punching inclined plane 81; a second punching inclined surface 34 matched with the first punching inclined surface 81 is respectively arranged at the outer ends of the two positioning blocks 31; when the second punching cylinder 7 drives the pushing block 8 to move downwards, the two positioning blocks 31 are synchronously driven to be close by the cooperation of the first punching inclined surface 81 and the second punching inclined surface 34, and the punching cutter head 33 punches the urinary catheter 13. Through the arrangement, the second punching cylinder 7 can conveniently drive the two positioning blocks 31 to close for the second time, so that the two punching heads 33 can be helped to stably punch the urinary catheter 13.

In particular, of course, the second punching cylinders 7 may be one or two, and one second punching cylinder 7 may be selectively provided to be connected to two push blocks 8 at the same time, or each second punching cylinder 7 may be connected to one push block 8. In this embodiment, each push block 8 is correspondingly connected with a second punching cylinder 7.

As shown in fig. 1, the front-rear driving device 2 includes a front-rear driving cylinder 21 fixedly provided and a moving plate 22 mounted on the table 1 so as to be movable forward and backward and connected to an output shaft of the front-rear driving cylinder 21; the first cylinder assembly and the punching device 3 are both mounted on a moving plate 22. The front and back driving cylinder 21 can be conveniently used for driving the first cylinder assembly and the punching device 3 to realize front and back movement through the arrangement.

For improving stability, a sliding rail (not shown due to visual shielding) extending back and forth is arranged on the workbench 1, and a sliding block (not shown due to visual shielding) is arranged on the sliding rail 9; the bottom of the moving plate 22 is attached to the slider.

As shown in fig. 2, for improving stability, a slide rail 9 extending from left to right is provided on the moving plate 22, and a slider (not shown due to a visual shielding) is provided on the slide rail 9; the bottom of the positioning block 31 is connected to the slider. Specifically, the two positioning blocks 31 are respectively connected with a sliding block movably connected to the sliding rail 9.

In this embodiment, the punching cutter 33 is a fuse cutter, and the heating rod 10 is connected to each positioning block 31, so that the positioning blocks 31 and the punching cutter 33 can be heated by using the heating rod 10, and when the heated punching cutter 33 punches the urinary catheter 13, the edge of the hole punched after the punching is finished is very smooth after the cutter head is hot-melted, so that the skin is not scratched easily, and the use experience is better.

In this embodiment, the two punching heads 33 are offset, so that the heads can punch holes in different positions on both sides of the catheter 13 during punching.

To accommodate different products, the position of the punching head 33 is adjustable left and right, and the punching head 33 is locked on the positioning block 31 through an adjusting bolt. Of course, in the actual use process, one of the punching heads 33 can be detached, so that the utility model can only punch holes on one side of the catheter 13, thereby meeting the requirements of different people and having strong applicability.

The cross section of the end of the punching bit 33 extending to the positioning hole 311 is annular.

As shown in fig. 2, in order to improve stability when two positioning blocks 31 are close, the side surfaces of the two positioning blocks 31 are provided with an insertion block 11 and an insertion slot 12 which are mutually matched, and the insertion block 11 on one positioning block 31 can be correspondingly inserted into the insertion slot 12 of the other positioning block 31, so that an insertion structure is formed, and the two positioning blocks 31 are more compact and stable when close.

To facilitate the installation of the plunger 32, the plunger 32 may be secured to the moving plate by a securing lever.

In this embodiment, the elastic member is a spring, and each positioning block 31 can be reset by using one spring alone, that is, the outer side of each positioning block 31 is pulled by one end of one fixedly arranged spring; in addition, as for the arrangement mode of the springs, a single spring can be arranged between the two positioning blocks 31, so that when the two positioning blocks 31 are closed, the two positioning blocks can be reset outwards by using the stretching force of the spring.

As shown in fig. 4 and 5, in the present embodiment, in order to improve the processing efficiency, the punching device 3 is provided with more than two first cylinder assemblies, and the first cylinder assemblies can be used to drive the positioning blocks 31 in each punching device 3 at the same time, that is, one cylinder can drive all the positioning blocks 31 to act. Specifically, firstly, one positioning piece 6 is arranged on the side edge of each positioning block 31, then, the push plate 5 is provided with open slots 51 with the same number as the groups of the positioning blocks 31 according to the group number of the positioning blocks 31 (two positioning blocks 31 are one group), and positioning inclined planes 52 are arranged on the two side edges of each open slot 51, so that when the first punching cylinder 4 drives the push plate 5 to move upwards, a plurality of positioning inclined planes 52 can be utilized to correspondingly drive the opposite positioning pieces 6 to be close, namely, the effect of driving the corresponding positioning blocks 31 to be close is achieved.

In connection with fig. 6, the following description will be given of the specific use principle of the present utility model by taking the working process of a punching device as an example, so as to understand the present utility model:

firstly, the feeding mechanism 14 sends the catheter 13 to the right front of the catheter punching mechanism of the utility model and positions the catheter; then, the front and rear driving air cylinder 21 is started, and the first air cylinder assembly and the punching device 3 are driven to move forwards through the moving plate 22 until the inserting rod 32 is inserted into the catheter 13; immediately, when the first punching cylinder 4 acts and drives the push plate 5 to move upwards, the two positioning pieces 6 and the two positioning blocks 31 are driven to be close for the first time by the two positioning inclined planes 52 in the opening groove 51, so that the urinary catheter 13 is positioned preliminarily, and a plurality of distances exist between the two punching cutter heads 33 and the urinary catheter 13, namely the punching cutter heads 33 are not contacted with the urinary catheter 13; then, the second punching cylinder 7 is started to drive the two pushing blocks 8 to move downwards until the corresponding first punching inclined surface 81 contacts with the second punching inclined surface 34 and pushes the two positioning blocks 31 to be close continuously until the punching cutter head 33 cuts into the catheter 13, and the periphery of the hole cut by the cutter head is smoother because the punching cutter head 33 is heated by the heating rod 10; finally, the second punching cylinder 7, the first punching cylinder 4 and the front and rear driving cylinder 21 are reset in sequence, so that after the urinary catheter 13 is separated from the inserted link 32, the feeding mechanism 14 sends the urinary catheter 13 which is processed and simultaneously sends a new urinary catheter 13 to a preset position for reprocessing.

In summary, (1) the punching device with the inserted link, the two positioning blocks and the two punching cutters is arranged, so that the inserted link and the positioning blocks are matched with the first cylinder assembly to enable the positioning blocks to be close and to enable the catheter to be processed to be positioned preliminarily, then the second cylinder assembly is utilized to enable the positioning blocks to be close continuously, two opposite punching cutters are enabled to cut into the catheter, and two holes are punched on two sides of the catheter respectively. Therefore, the utility model can simultaneously punch holes on both sides of the catheter, thereby improving the production efficiency. (2) According to the utility model, the first punching cylinder and the second punching cylinder are used for respectively driving the positioning block and the punching cutter head to be close twice in the working process, so that the urinary catheter is finally punched, the punching step is more stable by using the inclined guide punching mode of matching the positioning inclined surface with the positioning piece and matching the first punching inclined surface with the second punching inclined surface, and the stability of the positioning block can be further enhanced by matching with the limit of the sliding rail, so that the punched hole of the product is not easy to have the condition of different shapes and sizes, namely the quality is good.

The scope of the present disclosure is defined not by the above-described embodiments but by the appended claims and their equivalents.

Claims (10)

1. A catheter punching mechanism, characterized in that:

the device comprises a workbench, a front-back driving device, a first cylinder assembly and at least one punching device, wherein the first cylinder assembly and the at least one punching device are respectively arranged on the front-back driving device, and the front-back driving device can be used for driving the first cylinder assembly and the punching device to move back and forth; the punching device comprises a second air cylinder assembly, two positioning blocks which are arranged in a left-right movable manner and are provided with positioning holes, a plug rod which is fixed in the positioning holes forwards, two punching cutter heads which are respectively arranged on the two positioning blocks and are positioned on two sides of the positioning holes correspondingly, and an elastic piece which is connected with the two positioning blocks and is used for driving the two positioning blocks to reset outwards after being closed; the first cylinder assembly can be used for driving the two positioning blocks to be close together and position the catheter at first, and the second cylinder assembly is used for driving the two positioning blocks to be close together again and enabling the punching tool bit to punch the catheter.

2. The urinary catheter punch mechanism of claim 1, wherein:

the first air cylinder assembly comprises a first punching air cylinder which is fixedly arranged and a push plate which can move up and down and is connected to an output shaft of the first punching air cylinder; an open slot is arranged on the push plate; a positioning piece positioned in the open slot is respectively arranged on the side edges of the two positioning blocks, and positioning inclined planes matched with the positioning pieces are respectively arranged on the two side walls of the open slot; when the first punching cylinder drives the push plate to move upwards, the two locating pieces are pushed to be close by the locating inclined plane, and the two locating pieces are synchronously driven to be close and locate the catheter.

3. The urinary catheter punch mechanism of claim 1, wherein:

the second air cylinder assembly comprises a second punching air cylinder which is fixedly arranged and two pushing blocks which can move up and down and are respectively connected to an output shaft of the second punching air cylinder; the lower ends of the two pushing blocks are respectively provided with a corresponding first punching inclined plane; the outer ends of the two positioning blocks are respectively provided with a second punching inclined plane matched with the first punching inclined plane; when the second punching cylinder drives the pushing block to move downwards, the first punching inclined plane and the second punching inclined plane are matched to synchronously drive the two positioning blocks to be close together, and the punching cutter head punches the catheter.

4. The urinary catheter punch mechanism of claim 1, wherein:

the front-back driving device comprises a front-back driving cylinder and a moving plate, wherein the front-back driving cylinder is fixedly arranged, and the moving plate is arranged on the workbench in a front-back movable manner and is connected with an output shaft of the front-back driving cylinder; the first cylinder assembly and the punching device are both mounted on the moving plate.

5. The urinary catheter punch mechanism of claim 4, wherein:

a sliding rail extending forwards and backwards is arranged on the workbench, and a sliding block is arranged on the sliding rail; the bottom of the moving plate is connected to the sliding block.

6. The urinary catheter punch mechanism of claim 4, wherein:

a sliding rail extending leftwards and rightwards is arranged on the moving plate, and a sliding block is arranged on the sliding rail; the bottom of the positioning block is connected to the sliding block.

7. The urinary catheter punch mechanism of claim 1, wherein:

the punching tool bit is a fusion cutter, and each positioning block is connected with a heating rod.

8. The urinary catheter punch mechanism of claim 1, wherein:

the two punching tool bits are arranged in a staggered mode.

9. The urinary catheter punch mechanism of claim 1, wherein:

the side surfaces of the two positioning blocks are respectively provided with an inserting block and an inserting groove which are matched with each other, and the inserting block on one positioning block can be correspondingly inserted into the inserting groove on the other positioning block to form an inserting structure.

10. The urinary catheter punch mechanism of claim 1, wherein:

the punching device is provided with more than two, and the first cylinder assembly can be used for simultaneously driving the positioning blocks in each punching device.

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