Device that provides continuous supply of catheter tubing for assembly with funnel

Abstract

The present invention provides a device for continuously providing an indwelling needle hose for assembly with a funnel, comprising: a vertical plate; a horizontal fixing plate arranged on the vertical plate, provided with a notch groove; a servo motor arranged in the notch groove, the output shaft of which extends downward; an upper clamping mechanism fixed on the horizontal fixing plate, provided with an upper clamping hole; a slide rail arranged on the front of the vertical plate; a slider arranged on the slide rail, provided with a thread hole, a screw rod screwed into the thread hole, the upper end of the screw rod being connected to the output shaft; a lower clamping mechanism fixed on the slider, provided with a lower clamping hole corresponding to the upper clamping hole. The device of the embodiment of the present invention can accurately continuously or continuously supply materials for the assembly process of the indwelling needle hose and the funnel, and can accurately cut the length of the hose after assembly, prevent the phenomenon of misalignment during insertion and roundness of the head of the hose after cutting, and ensure product quality.

Description

Technical Field

[0001] The invention relates to the technical field of assembling an indwelling needle hose and a funnel, and in particular to a device for continuously providing an indwelling needle hose for assembly with a funnel. Background Art

[0002] At present, most domestic enterprises adopt manual assembly when producing and assembling indwelling needles. Due to the wide variety of indwelling needle models, different assembly jigs need to be replaced when changing different material numbers for production, which requires a lot of manpower and has extremely low production efficiency. Moreover, after assembly, the indwelling needle hose and the root of the funnel are unstable, with a high defect rate and high production cost. In addition, since the diameter of the indwelling needle hose is too small, long-term manual operation will cause fatigue during actual operation, and fatigue of personnel will cause the hose to be inserted off-center. After actual manual production, it is necessary to add a later process to check whether the hose and the funnel are connected completely and whether there is any leakage, which increases the production cost of the enterprise. Summary of the invention

[0003] In view of this, an embodiment of the present invention provides a device for continuously providing an indwelling needle hose for assembly with a funnel, which can effectively solve the above-mentioned problem.

[0004] In order to achieve the above object, the present invention provides the following technical solutions.

[0005] A device for continuously providing an indwelling needle hose for assembly with a funnel, comprising:

[0006] A vertical board having a front side and a back side facing each other;

[0007] A horizontal fixed plate, arranged on the upper part of the vertical plate and located on the front side of the vertical plate;

[0008] A servo motor fixed on the horizontal fixing plate, wherein an output shaft of the servo motor passes through the horizontal fixing plate and extends downward;

[0009] An upper clamping mechanism fixed on the horizontal fixing plate and located on the front side of the vertical plate, wherein the upper clamping mechanism is provided with an upper clamping hole for clamping the indwelling needle hose;

[0010] A slide rail provided on the front of the vertical plate and below the horizontal fixed plate, the slide rail extending in the up-down direction;

[0011] A slider disposed on the slide rail, wherein the slider is provided with a thread hole penetrating the upper and lower surfaces thereof, a threaded rod is screwed into the threaded hole, and the upper end of the threaded rod is connected to the output shaft;

[0012] A lower clamping mechanism is fixed on the sliding block, wherein the lower clamping mechanism is provided with a lower clamping hole, and the lower clamping hole corresponds to the upper clamping hole.

[0013] Preferably, the upper clamping mechanism comprises:

[0014] A vertical fixing plate, arranged on the horizontal fixing plate;

[0015] A first cylinder provided on the horizontal fixing plate and / or the vertical fixing plate, wherein a telescopic rod of the first cylinder passes through the vertical fixing plate and extends forward;

[0016] A first external fixing block is arranged on the front side of the vertical fixing plate, wherein a first fixing clamping groove is arranged on a surface of the first external fixing block facing the vertical fixing plate;

[0017] A first inner movable block is arranged between the vertical fixing plate and the first outer fixing block, the first inner movable block is connected to the telescopic rod of the first cylinder; a first movable clamping groove corresponding to the first fixed clamping groove is arranged on the surface of the first inner movable block;

[0018] Wherein, the corresponding first fixed clamping groove and first movable clamping groove can be assembled to form the upper clamping hole.

[0019] Preferably, the surface of the first external fixing block facing the vertical fixing plate is recessed inward to form a travel groove, and the first fixed clamping groove is arranged on the bottom wall of the travel groove; connecting wings are formed on both sides of the travel groove, and the first external fixing block is fixedly connected to the vertical fixing plate through the two connecting wings; the center of the bottom wall of the travel groove is recessed inward to form a guide groove, and the center of the outer surface of the first internal moving block protrudes outward to form a guide protrusion, and the guide protrusion is inserted into the guide groove; there are two first fixed clamping grooves, and the two first fixed clamping grooves are distributed on both sides of the guide groove.

[0020] Preferably, the first inner moving block is driven by the first cylinder to move in the stroke groove, so that the first inner moving block has a clamping working position in which its outer surface is in contact with the bottom wall of the stroke groove, and a loosening working position in which its outer surface is separated from the bottom wall of the stroke groove;

[0021] When the first inner movable block is in the clamping working position, the first movable clamping groove is spliced ​​with the first fixed clamping groove, and the upper clamping hole is in a clamping state; when the first inner movable block is in the loosening working position, the first movable clamping groove is separated from the first fixed clamping groove, and the upper clamping hole is in an open state;

[0022] When the upper clamping hole is in a clamping state, the indwelling needle hose can be clamped in the upper clamping hole and fixed in the up and down directions; when the upper clamping hole is in an open state, the indwelling needle hose has the freedom to move downward in the up and down directions by being pulled by the lower clamping mechanism.

[0023] Preferably, the lower clamping mechanism comprises:

[0024] A fixing member, arranged on the sliding block;

[0025] a second cylinder disposed on the fixing member and / or the sliding block, wherein a telescopic rod of the second cylinder passes through the fixing member and extends forward;

[0026] A second external fixing block is arranged on the front side of the fixing member, and a second fixing clamping groove is arranged on the surface of the second external fixing block facing the fixing member;

[0027] A second inner movable block is arranged between the fixing member and the second outer fixing block, the second inner movable block is connected to the telescopic rod of the second cylinder; a second movable clamping groove corresponding to the second fixed clamping groove is arranged on the surface of the second inner movable block;

[0028] Wherein, the corresponding second fixed clamping groove and second movable clamping groove can be assembled to form the lower clamping hole.

[0029] Preferably, the second inner movable block is driven by the second cylinder to move between the fixing member and the second outer fixed block, so that the second inner movable block has a clamping working position in which its outer surface is in contact with the outer surface of the second outer fixed block, and a loosening working position in which its outer surface is separated from the outer surface of the second outer fixed block;

[0030] When the second inner movable block is in the clamping working position, the second movable clamping groove and the second fixed clamping groove are spliced ​​together, and the lower clamping hole is in a clamping state; when the second inner movable block is in the loosening working position, the second movable clamping groove and the second fixed clamping groove are separated, and the lower clamping hole is in an open state;

[0031] When the lower clamping hole is in a clamped state, the indwelling needle hose can be clamped in the lower clamping hole, and the indwelling needle hose is fixed in the up and down directions; when the lower clamping hole is in an open state, the indwelling needle hose has the freedom to move relative to the lower clamping mechanism in the up and down directions.

[0032] Preferably, the slider is provided with a cutting mechanism for cutting off the indwelling needle hose, comprising: a cutting fixing plate arranged on the slider, a third cylinder arranged on the cutting fixing plate, a guide fixing member connected to the telescopic rod of the third cylinder, a blade clamping block arranged on the guide fixing member, and a cutting blade fixed on the blade clamping block; wherein the guide fixing member is in contact with the outer surface of the cylinder sleeve of the third cylinder, and the extension direction of the edge of the cutting blade forms an acute angle with the extension direction of the telescopic rod of the third cylinder.

[0033] Preferably, the device has a material pulling state, a return state and a fixed cutting state;

[0034] When the device is in the material pulling state, the servo motor drives the lower clamping mechanism to move downward, and the upper clamping hole and the lower clamping hole are both in an open state;

[0035] When the device is in the return state, the servo motor drives the lower clamping mechanism to move upward, the upper clamping hole is in the clamping state, and the lower clamping hole is in the loosening state;

[0036] When the device is in a fixed cutting state, the servo motor stops, the upper clamping hole is in a clamping state, the lower clamping hole is in a loose state, and the third cylinder drives the cutting blade to move and cut off the indwelling needle hose.

[0037] Preferably, a heating module is provided on the horizontal fixing plate, and a heating channel is provided in the heating module which passes through from top to bottom, and the heating through hole corresponds to the upper clamping hole; the heating module comprises:

[0038] A support column fixed on the horizontal fixing plate;

[0039] A heating block is arranged on the supporting column, and a heating groove is arranged on the outer surface of the heating block;

[0040] A cover plate is arranged on the outer surface of the heating block, and the cover plate covers the heating groove to form the heating channel.

[0041] Preferably, a guiding telescopic tube is provided between the upper clamping mechanism and the lower clamping mechanism, and the upper and lower ends of the guiding telescopic tube are respectively connected to the upper clamping hole and the lower clamping hole.

[0042] The device of the embodiment of the present invention can accurately and continuously supply materials for the assembly process of the indwelling needle hose and the funnel, and can accurately cut the length of the hose after assembly to prevent misalignment, oval flatness of the hose head after cutting, and hose flanging, thereby ensuring product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A left perspective structural diagram of a device for continuously providing an indwelling needle hose for assembly with a funnel according to a non-limiting embodiment of the present invention;

[0044] Figure 2 A right-side perspective structural diagram of a device for continuously providing an indwelling needle hose for assembly with a funnel according to a non-limiting embodiment of the present invention;

[0045] Figure 3 for Figure 1 and / or Figure 2A schematic diagram of the three-dimensional structure of the heating module;

[0046] Figure 4 for Figure 1 and / or Figure 2 A schematic diagram of the three-dimensional structure of the upper clamping mechanism;

[0047] Figure 4A for Figure 4 A schematic diagram of a local enlarged structure;

[0048] Figure 5 for Figure 1 and / or Figure 2 A schematic diagram of the three-dimensional structure of the lower clamping mechanism;

[0049] Fig. 6A for Figure 1 and / or Figure 2 The three-dimensional structural diagram of the cutting mechanism on the left side of the middle;

[0050] Figure 6B for Figure 1 and / or Figure 2 Schematic diagram of the three-dimensional structure of the cutting mechanism on the middle right. DETAILED DESCRIPTION

[0051] like Figures 1 to 6B As shown, an embodiment of the present invention provides a device for continuously providing an indwelling needle hose for assembly with a funnel, which comprises:

[0052] A vertical plate 1 having a front side and a back side facing each other;

[0053] A horizontal fixed plate 2 is provided on the upper part of the vertical plate 1 and located on the front side of the vertical plate 1;

[0054] A servo motor 3 is fixed on the horizontal fixing plate 2, and an output shaft of the servo motor 3 passes through the horizontal fixing plate 2 and extends downward;

[0055] An upper clamping mechanism 4 fixed on the horizontal fixing plate 2 and located on the front of the vertical plate 1, the upper clamping mechanism 4 is provided with an upper clamping hole (not shown) for clamping the indwelling needle hose;

[0056] A slide rail 5 is provided on the front of the vertical plate 1 and below the horizontal fixed plate 2, and the slide rail 5 extends in the up-down direction;

[0057] A slider 6 is arranged on the slide rail 5, wherein the slider 6 is provided with a thread hole penetrating the upper and lower surfaces thereof, a threaded rod 8 is screwed into the threaded hole, and the upper end of the threaded rod 8 is connected to the output shaft;

[0058] The lower clamping mechanism 7 is fixed on the slide block 6, and the lower clamping mechanism 7 is provided with a lower clamping hole (not shown), and the lower clamping hole corresponds to the upper clamping hole.

[0059] like Figure 1 and Figure 2 As shown, the vertical plate 1 is arranged on the base plate 9, a reinforcing plate 12 is arranged on the back of the vertical plate 1, and an X-axis adjustment seat 10 and a Y-axis adjustment seat 11 are respectively arranged on the left side and the rear side of the base plate 9, which are used for position calibration and quantification of the base plate 9 to facilitate rapid and accurate positioning and installation of the entire device.

[0060] A reinforcing rib 13 is provided between the lower surface of the horizontal fixing plate 2 and the front surface of the vertical plate 1 to improve the stability and connection strength of the horizontal fixing plate 2. Figure 4 As shown, a notch groove 201 is provided on the rear side of the horizontal fixing plate 2 , the opening of the notch groove 201 faces the back side of the vertical plate 1 , and the servo motor 3 is fixedly embedded in the notch groove.

[0061] Combination Figure 4A As shown, the upper clamping mechanism 4 includes:

[0062] A vertical fixing plate 401 is provided on the horizontal fixing plate 2;

[0063] A first cylinder 402 is arranged on the horizontal fixing plate 2 and / or the vertical fixing plate 401, and a telescopic rod of the first cylinder 402 passes through the vertical fixing plate 401 and extends forward; wherein the vertical fixing plate 401 may be provided with a mounting hole penetrating the front and rear surfaces thereof, and the first cylinder 402 may be fixedly embedded in the mounting hole;

[0064] A first external fixing block 403 is disposed on the front side of the vertical fixing plate 401, and a first fixing clamping groove 4031 is disposed on the surface of the first external fixing block 403 facing the vertical fixing plate 401;

[0065] A first inner moving block 404 is disposed between the vertical fixing plate 401 and the first outer fixing block 403, and the first inner moving block 404 is connected to the telescopic rod of the first cylinder 402; a first moving clamping groove 4041 corresponding to the first fixed clamping groove 4031 is disposed on the surface of the first inner moving block 404;

[0066] The corresponding first fixed clamping groove 4031 and the first movable clamping groove 4041 can be assembled to form an upper clamping hole.

[0067] Further, the surface of the first outer fixing block 403 facing the vertical fixing plate 401 is inwardly recessed to form a travel groove, and the first fixed clamping groove 4031 is provided on the bottom wall of the travel groove. Connecting wings 405 are formed on both sides of the travel groove, and the first outer fixing block 403 is fixedly connected to the vertical fixing plate 401 through the two connecting wings 405. The center of the bottom wall of the travel groove is inwardly recessed to form a guide groove, and the center of the outer surface of the first inner moving block 404 is outwardly protruded to form a guide protrusion, which is inserted into the guide groove. There are two first fixed clamping grooves 4031, and the two first fixed clamping grooves 4031 are distributed on both sides of the guide groove.

[0068] Therefore, the first inner movable block 404 is roughly in a "convex" shape, and with the help of the cooperation between the guide protrusion and the guide groove, the movement of the first inner movable block 404 is guided and straightened, so that the first inner movable block 404 can move stably relative to the first outer fixed block 403.

[0069] The first inner moving block 404 is driven by the first cylinder 402 to move in the stroke groove, so that the first inner moving block 404 has a clamping working position in which its outer surface is in contact with the bottom wall of the stroke groove, and a loosening working position in which its outer surface is separated from the bottom wall of the stroke groove.

[0070] When the first inner moving block 404 is in the clamping working position, the first movable clamping groove 4041 is spliced ​​together with the first fixed clamping groove 4031, and the upper clamping hole is in a clamping state; when the first inner moving block 404 is in the relaxing working position, the first movable clamping groove 4041 is separated from the first fixed clamping groove 4031, and the upper clamping hole is in an open state.

[0071] When the upper clamping hole is in a clamped state, the indwelling needle hose can be clamped in the upper clamping hole and fixed in the up and down directions; when the upper clamping hole is in an open state, the indwelling needle hose has the freedom to move downward in the up and down directions pulled by the lower clamping mechanism 7.

[0072] like Figure 5 As shown, the lower clamping mechanism 7 comprises:

[0073] The fixing member 701 is disposed on the slider 6; the fixing member 701 is generally in a "concave" shape, having a bottom wall and two parallel side walls extending backward from the bottom wall;

[0074] A second cylinder 702 is provided on the fixing member 701 and / or the slider 6, and a telescopic rod of the second cylinder 702 extends forward through the fixing member 701; wherein the bottom wall of the fixing member 701 may be provided with a mounting hole penetrating the front and rear surfaces thereof, and the second cylinder 702 may be fixedly embedded in the mounting hole;

[0075] A second outer fixing block 703 is disposed on the front side of the fixing member 701, and a second fixing clamping groove (not shown) is disposed on the surface of the second outer fixing block 703 facing the fixing member 701;

[0076] A second inner moving block 704 is disposed between the fixing member 701 and the second outer fixing block 703, and the second inner moving block 704 is connected to the telescopic rod of the second cylinder 702; a second moving clamping groove (not shown) corresponding to the second fixed clamping groove is disposed on the surface of the second inner moving block 704;

[0077] The corresponding second fixed clamping groove and the second movable clamping groove can be assembled to form a lower clamping hole.

[0078] The second outer fixing block 703 and the second inner moving block 704 are roughly in the shape of a regular rectangular cube, and the second outer fixing block 703 can be fixedly connected to the fixing member 701 through a connecting plate 705 at the bottom. The second outer fixing block 703 and the fixing member 701 are spaced apart, and the spacing distance between the two is greater than the thickness of the second inner moving block 704, so that the second inner moving block 704 can move between the second outer fixing block 703 and the fixing member 701. In addition, the connecting plate 705 used to fix the second outer fixing block 703 on the fixing member 701 can support the second inner moving block 704 to move thereon.

[0079] The second inner movable block 704 is driven by the second cylinder 702 to move between the fixing member 701 and the second outer fixed block 703, so that the second inner movable block 704 has a clamping working position in which its outer surface is in contact with the outer surface of the second outer fixed block 703, and a loosening working position in which its outer surface is separated from the outer surface of the second outer fixed block 703.

[0080] When the second inner moving block 704 is in the clamping working position, the second movable clamping groove and the second fixed clamping groove are spliced ​​together, and the lower clamping hole is in a clamping state; when the second inner moving block 704 is in the loosening working position, the second movable clamping groove and the second fixed clamping groove are separated, and the lower clamping hole is in an open state;

[0081] When the lower clamping hole is in a clamped state, the indwelling needle hose can be clamped in the lower clamping hole, and the indwelling needle hose is fixed in the up and down direction; when the lower clamping hole is in an open state, the indwelling needle hose has the freedom to move relative to the lower clamping mechanism 7 in the up and down direction.

[0082] Combination Fig. 6A and Figure 6B As shown, the slider 6 is provided with a cutting mechanism 14 for cutting off the indwelling needle hose, which includes: a cutting fixing plate 1401 provided on the slider 6, a third cylinder 1402 provided on the cutting fixing plate 1401, a guide fixing member 1403 connected to the telescopic rod of the third cylinder 1402, a blade clamping block 1404 provided on the guide fixing member 1403, and a cutting blade 1405 fixed on the blade clamping block 1404. Among them, the guide fixing member 1403 is in contact with the outer surface of the cylinder sleeve of the third cylinder 1402, and the extending direction of the edge of the cutting blade 1405 forms an acute angle with the telescopic direction of the telescopic rod of the third cylinder 1402.

[0083] The guide fixing member 1403 is a vertical bending member, including a horizontal plate portion and a vertical plate portion, the telescopic rod of the third cylinder 1402 is connected to the vertical plate portion, and the horizontal plate portion contacts the outer surface of the cylinder sleeve of the third cylinder 1402. Therefore, when the third cylinder 1402 drives the guide fixing member 1403 to move, the contact between the horizontal plate portion and the outer surface of the cylinder sleeve of the third cylinder 1402 can guide the movement of the guide fixing member 1403, thereby ensuring the accuracy of cutting.

[0084] In addition, the extension direction of the edge of the cutting blade 1405 forms an acute angle with the extension direction of the telescopic rod of the third cylinder 1402. When the third cylinder 1402 drives the cutting blade 1405 to move outward, the depth of the cutting blade 1405 cutting the indwelling needle hose gradually increases, thereby ensuring that the cutting shape of the indwelling needle hose maintains a better roundness while ensuring cutting, so that the subsequent insertion of the funnel can proceed smoothly, thereby improving overall work efficiency.

[0085] The device of the embodiment of the present invention has a material pulling state, a return state and a fixed cutting state; wherein:

[0086] When the device is in the material pulling state, the servo motor 3 drives the lower clamping mechanism 7 to move downward, and the upper clamping hole and the lower clamping hole are both in the open state;

[0087] When the device is in the return state, the servo motor 3 drives the lower clamping mechanism 7 to move upward, the upper clamping hole is in the clamping state, and the lower clamping hole is in the loose state;

[0088] When the device is in a fixed cutting state, the servo motor 3 stops, the upper clamping hole is in a clamping state, the lower clamping hole is in a loose state, and the third cylinder 1402 drives the cutting blade 1405 to move and cut off the indwelling needle hose.

[0089] like Figure 3 As shown, a heating module 15 is provided on the horizontal fixing plate 2, and a heating channel is provided in the heating module 15 which passes through from top to bottom, and the heating through hole corresponds to the upper clamping hole. The heating module 15 includes:

[0090] Support columns 1501, fixed on the horizontal fixed plate 2; there are two of them;

[0091] A heating block 1502 is arranged on the support column 1501, and a heating groove 1503 is arranged on the outer surface of the heating block 1502; the heating block 1502 can be a copper block, which will generate heat after being powered on; a multi-layer heat-insulating fixing plate 1504 can be arranged between the heating block 1502 and the support column 1501 to isolate the heat conduction between the heating block 1502 and the support column 1501;

[0092] A cover plate 1505 is disposed on the outer surface of the heating block 1502, and the cover plate 1505 covers the heating groove 1503 to form a heating channel.

[0093] Since the indwelling needle hose is in a rolled shape before assembly, it is naturally bent after unwinding, which is very inconvenient to assemble with the funnel. By providing a heating module 15, the indwelling needle hose is softened and subjected to bending stress treatment by the heating module 15 before assembly, so that the indwelling needle hose can be restored to a straight shape.

[0094] like Figure 1 and Figure 2 As shown, a guide telescopic tube 16 is provided between the upper clamping mechanism 4 and the lower clamping mechanism 7, and the upper and lower ends of the guide telescopic tube 16 are connected to the upper clamping hole and the lower clamping hole respectively. The number of the guide telescopic tubes 16 is equal to the number of the upper clamping hole and the lower clamping hole, both of which are two. By providing the guide telescopic tube 16 between the upper clamping mechanism 4 and the lower clamping mechanism 7, the indwelling needle hose in the upper clamping hole can be smoothly inserted into the corresponding lower clamping hole.

[0095] The working principle of the device of the embodiment of the present invention is as follows:

[0096] 1. Manually insert the indwelling needle hose into the heating channel of the heating module. At this time, the upper clamping hole of the upper clamping mechanism 4 is in a relaxed state, and the lower end of the indwelling needle hose passes through the upper clamping hole smoothly and enters the corresponding guide telescopic tube 16;

[0097] 2. The servo motor 3 drives the lower clamping mechanism 7 to move upward, and the lower clamping hole of the lower clamping mechanism 7 is in a relaxed state. After the lower end of the indwelling needle hose is inserted into the lower clamping hole, the lower clamping hole is switched to a clamped state;

[0098] 3. The servo motor 3 reverses and drives the lower clamping mechanism 7 to move downward, thereby pulling the indwelling needle hose downward and completing the assembly of the indwelling needle hose and the funnel;

[0099] 4. The upper clamping hole of the upper clamping mechanism 4 is switched to the clamping state, and the lower clamping hole of the lower clamping mechanism 7 is switched to the loose state. The servo motor 3 stops, and the third cylinder 1402 drives the cutting blade 1405 to move and cut off the indwelling needle hose, achieving fixed cutting, and completing the assembly of a set of indwelling needle hose and funnel;

[0100] 5. Repeat the above steps to achieve continuous feeding of the indwelling needle hose and assembly with the funnel.

[0101] The device of the embodiment of the present invention can accurately and continuously supply materials for the assembly process of the indwelling needle hose and the funnel, and can accurately cut the length of the hose after assembly to prevent misalignment, oval flatness of the hose head after cutting, and hose flanging, thereby ensuring product quality.

[0102] The above descriptions are only several embodiments of the present invention. Those skilled in the art may make various changes or modifications to the embodiments of the present invention based on the contents disclosed in the application documents without departing from the spirit and scope of the present invention.

Claims

1. A device for continuously providing an indwelling needle hose for assembly with a funnel, characterized in that: include: A vertical board having a front side and a back side facing each other; A horizontal fixing plate, arranged on the upper part of the vertical plate and located on the front of the vertical plate; a servo motor fixed on the horizontal fixing plate, the output shaft of the servo motor passes through the horizontal fixing plate and extends downward; an upper clamping mechanism fixed on the horizontal fixing plate and located on the front of the vertical plate, the upper clamping mechanism being provided with an upper clamping hole for clamping the indwelling needle hose; A slide rail provided on the front of the vertical plate and below the horizontal fixed plate, the slide rail extending in the up-down direction; a slider provided on the slide rail, the slider being provided with a thread hole penetrating the upper and lower surfaces thereof, a threaded rod being screwed into the threaded hole, the upper end of the threaded rod being connected to the output shaft; a lower clamping mechanism fixed on the slider, the lower clamping mechanism being provided with a lower clamping hole, the lower clamping hole corresponding to the upper clamping hole; The upper clamping mechanism comprises: a vertical fixing plate, which is arranged on the horizontal fixing plate; a first cylinder arranged on the horizontal fixing plate and / or the vertical fixing plate, the telescopic rod of the first cylinder extending forward through the vertical fixing plate; a first external fixing block arranged on the front side of the vertical fixing plate, the surface of the first external fixing block facing the vertical fixing plate is provided with a first fixed clamping groove; a first internal movable block arranged between the vertical fixing plate and the first external fixing block, the first internal movable block being connected to the telescopic rod of the first cylinder; the surface of the first internal movable block is provided with a first movable clamping groove corresponding to the first fixed clamping groove; wherein the corresponding first fixed clamping groove and first movable clamping groove can be assembled to form the upper clamping hole; The surface of the first outer fixing block facing the vertical fixing plate is recessed inwardly to form a travel groove, and the first fixed clamping groove is arranged on the bottom wall of the travel groove; connecting wings are formed on both sides of the travel groove, and the first outer fixing block is fixedly connected to the vertical fixing plate through the two connecting wings; the center of the bottom wall of the travel groove is recessed inwardly to form a guide groove, and the center of the outer surface of the first inner moving block is protruded outwardly to form a guide protrusion, and the guide protrusion is inserted into the guide groove; there are two first fixed clamping grooves, and the two first fixed clamping grooves are distributed on both sides of the guide groove; The first inner moving block is driven by the first cylinder to move in the stroke groove, so that the first inner moving block has a clamping working position in which its outer surface is in contact with the bottom wall of the stroke groove, and a loosening working position in which its outer surface is separated from the bottom wall of the stroke groove; when the first inner moving block is in the clamping working position, the first movable clamping groove and the first fixed clamping groove are spliced ​​together, and the upper clamping hole is in a clamping state; when the first inner moving block is in the loosening working position, the first movable clamping groove is separated from the first fixed clamping groove, and the upper clamping hole is in an open state; when the upper clamping hole is in the clamping state, the indwelling needle hose can be clamped in the upper clamping hole, and the indwelling needle hose is fixed in the up and down direction; when the upper clamping hole is in the open state, the indwelling needle hose has the freedom to be pulled by the lower clamping mechanism in the up and down direction and move downward; The lower clamping mechanism comprises: a fixing member, which is arranged on the slider; a second cylinder arranged on the fixing member and / or the slider, the telescopic rod of the second cylinder passing through the fixing member and extending forward; a second outer fixing block arranged on the front of the fixing member, the surface of the second outer fixing block facing the fixing member is provided with a second fixing clamping groove; a second inner moving block arranged between the fixing member and the second outer fixing block, the second inner moving block is connected to the telescopic rod of the second cylinder; the surface of the second inner moving block is provided with a second moving clamping groove corresponding to the second fixing clamping groove; wherein the corresponding second fixing clamping groove and second moving clamping groove can be assembled to form the lower clamping hole; The second inner moving block is driven by the second cylinder to move between the fixing member and the second outer fixing block, so that the second inner moving block has a clamping working position in which its outer surface is in contact with the outer surface of the second outer fixing block, and a loosening working position in which its outer surface is separated from the outer surface of the second outer fixing block; when the second inner moving block is in the clamping working position, the second movable clamping groove is spliced ​​together with the second fixed clamping groove, and the lower clamping hole is in a clamping state; when the second inner moving block is in the loosening working position, the second movable clamping groove is separated from the second fixed clamping groove, and the lower clamping hole is in an open state; when the lower clamping hole is in the clamping state, the indwelling needle hose can be clamped in the lower clamping hole, and the indwelling needle hose is fixed in the up and down direction; when the lower clamping hole is in the open state, the indwelling needle hose has the freedom to move relative to the lower clamping mechanism in the up and down direction; The slider is provided with a cutting mechanism for cutting off the indwelling needle hose, comprising: a cutting fixing plate provided on the slider, a third cylinder provided on the cutting fixing plate, a guide fixing member connected to the telescopic rod of the third cylinder, a blade clamping block provided on the guide fixing member, and a cutting blade fixed on the blade clamping block; wherein the guide fixing member is in contact with the outer surface of the cylinder sleeve of the third cylinder, and the extending direction of the edge of the cutting blade forms an acute angle with the telescopic direction of the telescopic rod of the third cylinder; The device has a material pulling state, a return state and a fixed cutting state; when the device is in the material pulling state, the servo motor drives the lower clamping mechanism to move downward, and the upper clamping hole and the lower clamping hole are both in an open state; when the device is in the return state, the servo motor drives the lower clamping mechanism to move upward, the upper clamping hole is in a clamped state, and the lower clamping hole is in a relaxed state; when the device is in the fixed cutting state, the servo motor stops, the upper clamping hole is in a clamped state, the lower clamping hole is in a relaxed state, and the third cylinder drives the cutting blade to move and cut off the indwelling needle hose; The horizontal fixing plate is provided with a heating module, and the heating module is provided with a heating channel which passes through from top to bottom, and the heating channel corresponds to the upper clamping hole; the heating module comprises: A support column fixed on the horizontal fixing plate; A heating block is arranged on the supporting column, and a heating groove is arranged on the outer surface of the heating block; A cover plate is arranged on the outer surface of the heating block, and the cover plate covers the heating groove to form the heating channel.

2. The device according to claim 1, characterized in that A guide telescopic tube is provided between the upper clamping mechanism and the lower clamping mechanism, and the upper and lower ends of the guide telescopic tube are respectively connected to the upper clamping hole and the lower clamping hole.

Images