Bonding device for nasal oxygen cannula and nasal plug

Abstract

The utility model belongs to the technical field of medical instrument production, and particularly relates to a nasal oxygen cannula nasal plug bonding device which comprises a working stand, an oxygen catheter clamping mechanism arranged on the working stand, a nasal plug feeding mechanism, a correction transfer table located between the nasal plug feeding mechanism and the oxygen catheter clamping mechanism, and a clamping transfer mechanism. The oxygen catheter clamping mechanism clamps an oxygen catheter, the nasal plug feeding mechanism takes and places a nasal plug on the correction transfer table, the correction transfer table receives, positions and corrects the nasal plug, the bonding end of the nasal plug is opposite to the bonding end of the oxygen catheter, and then the clamping transfer mechanism clamps and places the two ends of the nasal plug on the correction transfer table. And the nasal plug is conveyed to the end of the oxygen catheter clamped by the oxygen catheter clamping mechanism to be bonded, so that the nasal plug is stably clamped, and the accurate bonding of the nasal plug and the oxygen catheter is ensured.

Description

Technical field

[0001] The utility model belongs to the technical field of medical device production, and in particular relates to a nasal oxygen tube and nasal plug bonding device. [Background Technology]

[0002] A nasal oxygen cannula is a medical device used to administer oxygen therapy, delivering oxygen to the patient's respiratory tract to aid breathing. It primarily consists of an oxygen supply tube, a nasal prong, and a connector. The oxygen supply tube is the main component of the cannula, delivering oxygen to the patient's nose. The prong, made of soft plastic, allows the cannula to be inserted into the patient's nostrils, ensuring proper oxygen delivery. The connector connects the cannula to the oxygen supply equipment.

[0003] In the existing assembly and production of nasal oxygen tubes, a robot is generally used to clamp the oxygen tube and the nasal plug separately to bond the oxygen tube to the nasal plug. The existing production equipment uses a robot to clamp the nasal plug from the conveyor line and directly transfer it to be bonded to the oxygen tube. The robot only clamps one end of the nasal plug passage part, which will cause unstable clamping, resulting in an angular deviation of the nasal plug during the transfer or bonding process with the oxygen tube. That is, the direction of the bonding end of the nasal plug deviates from the direction of the bonding end of the oxygen tube, affecting the accurate bonding of the nasal plug to the oxygen tube. [Utility Model Content]

[0004] The purpose of the utility model is to provide a nasal oxygen tube and nasal plug bonding device which can position and correct the nasal plug, stably clamp the nasal plug, and ensure that the nasal plug is accurately bonded to the oxygen supply tube.

[0005] The utility model is realized by the following technical solutions:

[0006] A nasal oxygen tube and nasal obstruction adhesive device, comprising:

[0007] work stand;

[0008] An oxygen supply tube clamping mechanism is provided on the workbench and is used to clamp the oxygen supply tube;

[0009] A calibration transfer table is provided on the workbench and is used to place and position the nasal plug so that the adhesive end of the nasal plug faces opposite to the adhesive end of the oxygen supply tube;

[0010] A nasal plug feeding mechanism is provided on the workbench and is used to place the nasal plug on the calibration transfer table, which is located between the nasal plug feeding mechanism and the oxygen supply tube clamping mechanism;

[0011] The clamping and transferring mechanism is arranged on the working platform and is used for clamping the two ends of the nasal plug placed on the correction transfer platform and transferring them to the end of the oxygen supply tube clamped by the oxygen supply tube clamping mechanism for bonding.

[0012] The nasal oxygen tube and nasal plug bonding device described above, wherein the workbench includes a lower mounting plate and an upper mounting plate, and the calibration transfer table includes:

[0013] A transfer support frame, which is arranged on the lower mounting plate;

[0014] A positioning jig is provided on the transfer support frame, and the positioning jig is provided with positioning slots running through the front and rear ends of the positioning jig;

[0015] The limiting plate is arranged at the front end of the transfer support frame and is used to cooperate with the positioning fixture to position the nasal plug.

[0016] As described above, the nasal oxygen tube and nasal plug bonding device, the clamping and transferring mechanism includes a transfer clamping cylinder and two transfer clamping members arranged opposite to the clamping output end of the transfer clamping cylinder, the transfer clamping members including:

[0017] A clamping mounting portion, which is used to connect to the clamping output end of the transfer clamping cylinder;

[0018] a front clamping portion connected to the clamping mounting portion;

[0019] The rear clamping part is connected to the clamping mounting part. The transfer clamping cylinder can drive the two clamping mounting parts to move toward each other, so that the two front clamping parts cooperate to clamp the front end of the nasal plug, and the two rear clamping parts cooperate to clamp the rear end of the nasal plug.

[0020] As described above, a nasal oxygen tube and nasal plug bonding device is provided with a correction pusher on the transfer clamping cylinder, one end of the correction pusher is connected to the transfer clamping cylinder, and the other end extends between the two transfer clamping members. When the clamping and transferring mechanism drives the transfer clamping member to approach the calibration turntable to clamp the nasal plug, the correction pusher contacts the nasal plug and pushes the nasal plug to be positioned in the positioning groove.

[0021] The nasal oxygen tube and nasal plug bonding device described above, wherein the clamping and transferring mechanism further comprises:

[0022] A transfer guide rail is provided on the upper mounting plate in a direction approaching or moving away from the oxygen supply tube clamping mechanism;

[0023] A transfer slide, which is movably arranged on a transfer guide rail;

[0024] A transfer drive member, which is provided on the upper mounting plate and is used to drive the transfer slide to move;

[0025] The transfer lifting drive component is arranged on the transfer slide, and the lifting drive end is connected to the transfer clamping cylinder.

[0026] The nasal oxygen tube and nasal plug bonding device described above, wherein the nasal plug feeding mechanism comprises:

[0027] A loading lifting drive member is provided on the transfer slide and is arranged with the transfer lifting drive member along the moving direction of the transfer slide;

[0028] A feeding clamping cylinder connected to the lifting drive end of the feeding lifting drive member;

[0029] The two feeding clamping parts are arranged opposite to each other at the clamping output end of the feeding clamping cylinder.

[0030] The nasal oxygen tube and nasal plug bonding device as described above also includes a nasal plug feeding mechanism for conveying nasal plugs, the nasal plug feeding mechanism includes a vibrating plate, a feeding guide groove connected to the vibrating plate, and a straight vibration feeder connected to the feeding guide groove. When the nasal plug feeding mechanism takes the nasal plug on the feeding guide groove and places it on the correction turntable, the clamping and transferring mechanism synchronously clamps and transfers the nasal plug on the correction turntable to the oxygen tube clamped by the oxygen tube clamping mechanism for bonding.

[0031] According to the above-mentioned nasal oxygen tube and nasal plug bonding device, the upper mounting plate is provided with a first in-position switch and a second in-position switch arranged along the moving direction of the transfer slide, and the transfer slide is provided with an in-position sensing piece corresponding to the first in-position switch and the second in-position switch. When the transfer slide moves to the in-position sensing piece opposite to the first in-position switch, the transfer slide stops, and at this time the front clamping part and the rear clamping part are respectively opposite to the front end and the rear end of the nasal plug on the positioning fixture; when the transfer slide moves to the in-position sensing piece opposite to the second in-position switch, the transfer slide stops, and at this time the front end of the nasal plug clamped by the clamping transfer mechanism is bonded to the end of the oxygen supply tube clamped by the oxygen supply tube clamping mechanism.

[0032] As described above, a nasal oxygen tube and nasal plug bonding device has photoelectric switches and switch mounting frames for mounting photoelectric switches on the workbench and on both sides of the feeding guide groove. When the nasal plug loading mechanism removes the nasal plug on the feeding guide groove, the photoelectric switch drives the direct vibration feeder to feed the material.

[0033] The nasal oxygen tube and nasal plug bonding device described above, wherein the oxygen tube clamping mechanism comprises:

[0034] an upper clamping drive member, which is vertically arranged on the upper mounting plate;

[0035] an upper clamping plate connected to the driving end of the upper clamping driving member;

[0036] a lower clamping drive member, which is arranged on the lower mounting plate in a vertical direction;

[0037] The lower clamping plate is connected to the driving end of the lower clamping driving member and is arranged opposite to the upper clamping plate.

[0038] Compared with the prior art, the utility model has the following advantages:

[0039] The utility model provides a nasal oxygen tube and nasal plug bonding device, comprising a workbench, an oxygen tube clamping mechanism arranged on the workbench, a nasal plug feeding mechanism, a correction transfer platform located between the nasal plug feeding mechanism and the oxygen tube clamping mechanism, and a clamping and transferring mechanism. When in use, the oxygen tube clamping mechanism clamps the oxygen tube, the nasal plug feeding mechanism takes the nasal plug and places it on the correction transfer platform, the correction transfer platform receives and positions the correction nasal plug so that the bonding end of the nasal plug faces opposite to the bonding end of the oxygen tube, and then the clamping and transferring mechanism clamps the two ends of the nasal plug placed on the correction transfer platform and transfers it to the end of the oxygen tube clamped by the oxygen tube clamping mechanism for bonding, so that the clamped nasal plug is stable, ensuring that the nasal plug and the oxygen tube are accurately bonded.

Brief Description of the Drawings

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0041] Figure 1 This is a structural diagram of the nasal oxygen tube and nasal plug bonding device in a specific embodiment of the present invention;

[0042] Figure 2 This is a schematic diagram of the partial structure of the nasal oxygen tube and nasal plug bonding device in a specific embodiment of the present invention;

[0043] Figure 3 It is a schematic diagram of the exploded structure of the clamping and transferring mechanism and the correction turntable in a specific embodiment of the present utility model. [Specific implementation method]

[0044] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0045] When the embodiments of the present invention mention ordinal numbers such as "first" and "second", unless they do express the meaning of order according to the context, they should be understood as being merely for the purpose of distinction.

[0046] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0047] Specific embodiments, such as Figure 1-3The nasal oxygen tube and nasal plug bonding device shown in the figure includes: a workbench 1; an oxygen tube clamping mechanism 2, which is arranged on the workbench 1 and is used to clamp the oxygen tube; a correction transfer table 3, which is arranged on the workbench 1 and is used to place and position the nasal plug 100 so that the bonding end of the nasal plug is facing opposite to the bonding end of the oxygen tube; a nasal plug feeding mechanism 4, which is arranged on the workbench 1 and is used to take the nasal plug 100 and place it on the correction transfer table 3, and the correction transfer table 3 is located between the nasal plug feeding mechanism 4 and the oxygen tube clamping mechanism 2; a clamping and transferring mechanism 5, which is arranged on the workbench 1 and is used to clamp the two ends of the nasal plug placed on the correction transfer table 3, and transfer it to the end of the oxygen tube clamped by the oxygen tube clamping mechanism 2 for bonding. During use, glue is applied to the bonding end of the oxygen tube, and the oxygen tube is clamped by the oxygen tube clamping mechanism. The nasal plug loading mechanism takes the nasal plug 100 and places it on the calibration turntable. The calibration turntable receives and positions the nasal plug 100 so that the bonding end of the nasal plug faces opposite to the bonding end of the oxygen tube. The clamping and transferring mechanism then clamps the two ends of the nasal plug placed on the calibration turntable and transfers it to the end of the oxygen tube clamped by the oxygen tube clamping mechanism for bonding. The clamped nasal plug is stable to ensure precise bonding between the nasal plug and the oxygen tube.

[0048] Specifically, the workbench 1 includes a lower mounting plate 11 and an upper mounting plate 12. The calibration transfer platform 3 includes: a transfer support frame 31, which is mounted on the lower mounting plate 11; a positioning fixture 32, which is mounted on the transfer support frame 31. The positioning fixture 32 is provided with a positioning placement slot 321 that runs through the front and rear ends of the positioning fixture 32; and a limiting plate 33, which is mounted at the front end of the transfer support frame 31 and is used to cooperate with the positioning fixture 32 to position the nasal plug. The walls of the positioning placement slot 321 limit the left and right sides of the nasal plug and align the nasal plug to prevent the adhesive end of the nasal plug from tilting left or right. The limiting plate 33 limits the position of the front end of the nasal plug to ensure that the nasal plug is transferred to the adhesive end and just contacts and connects with the adhesive end of the oxygen supply tube.

[0049] In addition, the clamping and transferring mechanism 5 includes a transfer clamping cylinder 51 and two transfer clamping members 52 arranged opposite to the clamping output end of the transfer clamping cylinder 51. The transfer clamping member 52 includes a clamping mounting portion 521 for connecting to the clamping output end of the transfer clamping cylinder 51; a front clamping portion 522 connected to the clamping mounting portion 521; and a rear clamping portion 523 connected to the clamping mounting portion 521. The transfer clamping cylinder 51 can drive the two clamping mounting portions 521 to move toward each other, so that the two front clamping portions 522 cooperate to clamp the front end of the nasal plug, and the two rear clamping portions 523 cooperate to clamp the rear end of the nasal plug. The clamping is stable, preventing the nasal plug from shifting during the transfer or bonding process, ensuring accurate bonding.

[0050] Furthermore, the transfer clamping cylinder 51 is provided with a correction pusher 6, one end of which is connected to the transfer clamping cylinder 51, and the other end of which extends between the two transfer clamping members 52. When the clamping and transferring mechanism 5 drives the transfer clamping member 52 to approach the calibration turntable 3 to clamp the nasal plug, the correction pusher 6 contacts the nasal plug and pushes it to position in the positioning groove 321. The nasal plug is corrected to a horizontal position, and the correction pusher 6 passes above the nasal plug, making it easier for the transfer clamping member 52 to clamp it, and making the transfer clamping member 52 clamp more accurately.

[0051] More specifically, the clamping and transferring mechanism 5 also includes: a transfer guide rail 53, which is arranged on the upper mounting plate 12 along the direction of approaching or moving away from the oxygen supply tube clamping mechanism 2; a transfer slide 54, which is movably arranged on the transfer guide rail 53; a transfer driving member 55, which is arranged on the upper mounting plate 12 and is used to drive the transfer slide 54 to move, and the transfer driving member 55 can use a rotating motor to drive the screw to rotate, thereby driving the transfer slide 54 to move; a transfer lifting driving member 56, which is arranged on the transfer slide 54, and the lifting driving end is connected to the transfer clamping cylinder 51, and the transfer lifting driving member 56 can use a telescopic cylinder, and its telescopic end is connected to the transfer clamping cylinder 51 to drive the transfer clamping cylinder 51 and the transfer clamping member 52 to move up and down.

[0052] Furthermore, the nasal plug feeding mechanism 4 includes: a feeding lifting drive member 41, which is provided on the transfer slide 54 and arranged along the moving direction of the transfer slide 54 with the transfer lifting drive member 56; a feeding clamping cylinder 42, which is connected to the lifting drive end of the feeding lifting drive member 41; and a feeding clamping member 43, wherein the two feeding clamping members 43 are oppositely provided at the clamping output end of the feeding clamping cylinder 42. Specifically, the nasal oxygen tube nasal plug bonding device also includes a nasal plug feeding mechanism 7 for conveying nasal plugs, the nasal plug feeding mechanism 7 includes a vibrating disk 71, a feeding guide 72 connected to the vibrating disk 71, and a straight vibration feeder 73 connected to the feeding guide 72. When the nasal plug feeding mechanism 4 takes and places the nasal plug on the feeding guide 72 onto the calibration turntable 3, the clamping and transferring mechanism 5 simultaneously clamps and transfers the nasal plug on the calibration turntable 3 to the oxygen tube clamped by the oxygen tube clamping mechanism 2 for bonding. Reduce the nasal plug transfer stroke and improve processing efficiency.

[0053] Furthermore, the upper mounting plate 12 is provided with a first in-position switch 81 and a second in-position switch 82 arranged along the moving direction of the transfer slide 54. The transfer slide 54 is provided with an in-position sensing piece 83 corresponding to the first in-position switch 81 and the second in-position switch 82. When the transfer slide 54 moves to the point where the in-position sensing piece 83 is opposite to the first in-position switch 81, the transfer slide 54 stops. At this time, the front clamping portion 522 and the rear clamping portion 523 are respectively opposite to the front and rear ends of the nasal plug on the positioning fixture 32. When the transfer slide 54 moves to the point where the in-position sensing piece 83 is opposite to the second in-position switch 82, the transfer slide 54 stops. At this time, the front end of the nasal plug held by the clamping and transfer mechanism 5 is bonded to the end of the oxygen supply tube held by the oxygen supply tube clamping mechanism 2. This ensures that the nasal plug and the oxygen supply tube are precisely bonded.

[0054] Specifically, photoelectric switches 91 and switch mounting brackets 92 for mounting photoelectric switches 911 are provided on the workbench 1 on opposite sides of the feed guide 72. When the nasal plug loading mechanism 4 removes the nasal plug from the feed guide 72, the photoelectric switches 91 drive the direct vibration feeder 73 to feed the plug, thereby achieving automatic loading and a higher degree of automation.

[0055] More specifically, the oxygen tube clamping mechanism 2 includes: an upper clamping driver 21, which is vertically mounted on the upper mounting plate 12; an upper clamping plate 22, which is connected to the driving end of the upper clamping driver 21; a lower clamping driver 23, which is vertically mounted on the lower mounting plate 11; and a lower clamping plate 24, which is connected to the driving end of the lower clamping driver 23 and is disposed opposite the upper clamping plate 22. The upper clamping driver 21 and the lower clamping driver 23 are telescopic cylinders, whose telescopic ends are respectively connected to the upper clamping plate 22 and the lower clamping plate 24, so as to drive the upper clamping plate 22 and the lower clamping plate 24 to move toward each other to clamp the oxygen tube, or move away from each other.

[0056] The above is an implementation method provided in conjunction with specific content, and does not necessarily mean that the specific implementation of this utility model is limited to these descriptions. At the same time, due to differences in industry nomenclature, it is not limited to the above nomenclature, nor is it limited to English nomenclature. Any method, structure, etc. similar to or identical to the method, structure, etc. of this utility model, or any technical deduction or replacement based on the concept of this utility model, shall be considered within the scope of protection of this utility model.

Claims

1. A nasal oxygen tube and nasal plug bonding device, characterized in that: include: Work stand(1); An oxygen supply tube clamping mechanism (2) is provided on the workbench (1) and is used to clamp the oxygen supply tube; A calibration transfer table (3) is provided on the workbench (1) and is used to place and position the nasal plug so that the adhesive end of the nasal plug faces opposite to the adhesive end of the oxygen supply tube; A nasal plug feeding mechanism (4) is provided on the workbench (1) and is used to place the nasal plug on the calibration transfer platform (3), wherein the calibration transfer platform (3) is located between the nasal plug feeding mechanism (4) and the oxygen supply tube clamping mechanism (2); The clamping and transferring mechanism (5) is arranged on the workbench (1) and is used to clamp the two ends of the nasal plug placed on the calibration transfer table (3) and transfer them to the end of the oxygen supply tube clamped by the oxygen supply tube clamping mechanism (2) for bonding.

2. A nasal oxygen tube and nasal plug bonding device according to claim 1, characterized in that: The workbench (1) comprises a lower mounting plate (11) and an upper mounting plate (12), and the calibration transfer platform (3) comprises: A transfer support frame (31) is provided on the lower mounting plate (11); A positioning jig (32) is provided on the transfer support frame (31), wherein the positioning jig (32) is provided with positioning placement grooves (321) that pass through the front and rear ends of the positioning jig (32); A limiting plate (33) is provided at the front end of the transfer support frame (31) and is used to cooperate with the positioning fixture (32) to position the nasal plug.

3. A nasal oxygen tube and nasal plug bonding device according to claim 2, characterized in that: The clamping and transferring mechanism (5) comprises a transfer clamping cylinder (51) and two transfer clamping members (52) arranged opposite to the clamping output end of the transfer clamping cylinder (51), wherein the transfer clamping members (52) comprise: A clamping mounting portion (521) for connecting to a clamping output end of a transfer clamping cylinder (51); A front clamping portion (522) connected to the clamping mounting portion (521); The rear clamping part (523) is connected to the clamping mounting part (521), and the transfer clamping cylinder (51) can drive the two clamping mounting parts (521) to move toward each other, so that the two front clamping parts (522) cooperate to clamp the front end of the nasal plug, and the two rear clamping parts (523) cooperate to clamp the rear end of the nasal plug.

4. A nasal oxygen tube and nasal plug bonding device according to claim 3, characterized in that: The transfer clamping cylinder (51) is provided with a correction pusher (6), one end of which is connected to the transfer clamping cylinder (51), and the other end of which extends between the two transfer clamping members (52). When the clamping transfer mechanism (5) drives the transfer clamping member (52) to approach the correction transfer table (3) to clamp the nasal plug, the correction pusher (6) contacts the nasal plug and pushes the nasal plug to be positioned in the positioning groove (321).

5. The nasal oxygen tube and nasal plug bonding device according to claim 3, characterized in that: The clamping and transferring mechanism (5) further comprises: A transfer guide rail (53) is provided on the upper mounting plate (12) in a direction approaching or moving away from the oxygen supply tube clamping mechanism (2); A transfer slide (54) is movably arranged on the transfer guide rail (53); A transfer driving member (55) is provided on the upper mounting plate (12) and is used to drive the transfer slide plate (54) to move; The transfer lifting drive member (56) is arranged on the transfer slide plate (54), and the lifting drive end is connected to the transfer clamping cylinder (51).

6. A nasal oxygen tube and nasal plug adhesive device according to claim 5, characterized in that: The nasal congestion feeding mechanism (4) comprises: A loading lifting drive member (41) is provided on the transfer slide (54) and is arranged along the moving direction of the transfer slide (54) together with the transfer lifting drive member (56); A feeding clamping cylinder (42) connected to a lifting drive end of a feeding lifting drive member (41); The two feeding clamping members (43) are arranged opposite to each other at the clamping output end of the feeding clamping cylinder (42).

7. A nasal oxygen tube and nasal plug adhesive device according to claim 6, characterized in that: The invention also includes a nasal plug feeding mechanism (7) for feeding nasal plugs, wherein the nasal plug feeding mechanism (7) includes a vibration plate (71), a feeding guide groove (72) connected to the vibration plate (71), and a straight vibration feeder (73) connected to the feeding guide groove (72). When the nasal plug feeding mechanism (4) takes the nasal plug on the feeding guide groove (72) and places it on the calibration transfer table (3), the clamping and transferring mechanism (5) simultaneously clamps and transfers the nasal plug on the calibration transfer table (3) to the oxygen supply tube clamped by the oxygen supply tube clamping mechanism (2) for bonding.

8. The nasal oxygen tube and nasal plug adhesive device according to claim 5, characterized in that: The upper mounting plate (12) is provided with a first in-position switch (81) and a second in-position switch (82) arranged along the moving direction of the transfer slide (54), and the transfer slide (54) is provided with an in-position sensing piece (83) corresponding to the first in-position switch (81) and the second in-position switch (82). When the transfer slide (54) moves to the in-position sensing piece (83) relative to the first in-position switch (81), the transfer slide (54) stops, and at this time the front clamping part (522) and the rear clamping part (523) are respectively relative to the front end and the rear end of the nasal plug on the positioning fixture (32); when the transfer slide (54) moves to the in-position sensing piece (83) relative to the second in-position switch (82), the transfer slide (54) stops, and at this time the front end of the nasal plug clamped by the clamping transfer mechanism (5) is bonded to the end of the oxygen supply tube clamped by the oxygen supply tube clamping mechanism (2).

9. The nasal oxygen tube and nasal plug adhesive device according to claim 7, characterized in that: Photoelectric switches (91) and switch mounting frames (92) for mounting the photoelectric switches (91) are provided on the workbench (1) and on both sides of the feeding guide groove (72). When the nasal plug loading mechanism (4) removes the nasal plug from the feeding guide groove (72), the photoelectric switches (91) drive the direct vibration feeder (73) to feed the material.

10. The nasal oxygen tube and nasal plug bonding device according to claim 2, characterized in that: The oxygen supply tube clamping mechanism (2) comprises: An upper clamping drive member (21) is vertically mounted on the upper mounting plate (12); an upper clamping plate (22) connected to a driving end of the upper clamping driving member (21); A lower clamping drive member (23) is vertically arranged on the lower mounting plate (11); The lower clamping plate (24) is connected to the driving end of the lower clamping driving member (23) and is arranged opposite to the upper clamping plate (22).

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