Ablation needle heat shrink sleeve cutting mechanism

Abstract

The utility model discloses a heat shrink sleeve cutting mechanism for ablation needles, which is used for processing ablation needles with heat shrink tubes, and includes: a support seat, a top plate is horizontally arranged on one side of the support seat with a vertical driving mechanism, and the movable end of the vertical driving mechanism is connected to the top plate; the lower surface of the top plate is connected to a plurality of connecting seats; a receiving groove is vertically arranged inside the connecting seat, and the receiving groove is connected to the bottom surface of the connecting seat, and a mounting block with a shaft rod at the top is arranged below the connecting seat, and the shaft rod can slide up and down along the receiving groove, and an elastic member is arranged between the top of the shaft rod and the top wall of the receiving groove, and an adjustment gap is arranged between the mounting block with an annular cutter head connected to the bottom and the connecting seat. The utility model can realize elastic contact between the cutter head and the ablation needle.

Description

Technical Field

[0001] The utility model relates to a heat shrinkable sleeve cutting mechanism for an ablation needle, belonging to the technical field of heat shrinkable tube cutting. Background Art

[0002] In order to enhance the strength and toughness of the ablation needle, a heat shrink tubing is generally installed on the outer wall of the needle. Heat shrink tubing has the advantages of high temperature shrinkage, softness, flame retardancy, insulation and corrosion resistance, and is widely used in insulation protection of various wiring harnesses, solder joints, inductors, and rust and corrosion prevention of metal pipes and rods. In actual use, the excess heat shrink tubing on the needle body needs to be removed.

[0003] After searching, the Chinese patent with authorization announcement number CN218776663U discloses "a cutting device dedicated to planer heat shrink tube", which can perform circular cutting on planer heat shrink tube, improve the cutting quality and efficiency of planer heat shrink tube, include two sets of feeding wheels and a base, both sets of feeding wheels are installed on the top left side of the base; also include an annular cutting assembly, the annular cutting assembly includes an electromagnetic assembly, a magnet bar, two sets of slide rails, two sets of sliders, two sets of unloading cylinders, two sets of cutting cylinders and two sets of annular cutters, the electromagnetic assembly is installed in the middle of the top of the base, the magnet bar is suspended on the upper side of the electromagnetic assembly by magnetic force, the two sets of slide rails are respectively installed on the front and rear sides of the top of the base, the two sets of sliders are respectively slidably connected to the two sets of slide rails, the two sets of unloading cylinders are respectively installed on the top left side of the two sets of slide rails, the output ends of the two sets of unloading cylinders are respectively connected to the left ends of the two sets of sliders, and the two sets of cutting cylinders are respectively installed at the rear end of the front slider and the front end of the rear slider.

[0004] However, when processing an ablation needle provided with a heat shrink tube, the cutting head in the prior art is fixedly mounted on a corresponding mounting seat, so that there is hard contact between the cutting head and the workpiece, and high precision is required for controlling the distance between the cutting head and the needle body. During the processing, excessive cutting often occurs, resulting in damage to the needle body or incomplete cutting through of the heat shrink tube, resulting in poor cutting effect. Utility Model Content

[0005] The purpose of the utility model is to provide a heat shrink tube cutting mechanism for an ablation needle, which can achieve elastic contact between the blade and the ablation needle, avoid damage to the needle body due to hard contact, and avoid the situation where the heat shrink tube is not completely cut through, thereby improving the cutting effect.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a heat shrink sleeve cutting mechanism for an ablation needle, used for processing an ablation needle with a heat shrink sleeve, comprising: a support seat, a top plate is horizontally arranged on one side of the support seat with a vertical driving mechanism installed, and the movable end of the vertical driving mechanism is connected to the top plate; a plurality of connecting seats are arranged on the lower surface of the top plate;

[0007] A accommodating groove is vertically arranged inside the connecting seat, and the accommodating groove is connected to the bottom surface of the connecting seat. A mounting block with a shaft rod on the top is arranged below the connecting seat. The shaft rod can slide up and down along the accommodating groove. An elastic member is arranged between the top of the shaft rod and the top wall of the accommodating groove, and an adjustment gap is provided between the mounting block with an annular cutter head connected to the bottom and the connecting seat.

[0008] The further improved scheme in the above technical scheme is as follows:

[0009] 1. In the above scheme, a first fixing seat and a second fixing seat are arranged on the lower surface of the top plate, and a fixing sleeve is arranged between the two first fixing seats and the second fixing seat, and a plurality of the connecting seats are arranged on the circumferential outer wall of the fixing sleeve and along the length direction.

[0010] 2. In the above solution, a sleeve is provided between the inner wall of the receiving groove and the circumferential outer wall of the shaft rod, and the shaft rod can slide up and down along the inner wall of the sleeve.

[0011] 3. In the above solution, the top of the shaft rod has a second guide rod, and the elastic member is sleeved on the circumferential outer wall of the second guide rod.

[0012] 4. In the above solution, the diameter of the shaft rod is 2 to 4 times the diameter of the second guide rod.

[0013] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0014] The utility model discloses a heat shrink sleeve cutting mechanism for an ablation needle, wherein the interior of the connecting seat is vertically provided with a receiving groove, and the receiving groove is through-connected with the bottom surface of the connecting seat, and a mounting block with a shaft rod on the top is provided below the connecting seat, and the shaft rod can slide up and down along the receiving groove, and an elastic member is provided between the top of the shaft rod and the top wall of the receiving groove, and an adjustment gap is provided between the connecting seat and the mounting block, and by providing the mounting block below the connecting seat and providing an adjustment gap between the mounting block and the connecting seat, the annular cutter head can move in the vertical direction, and the mounting block has an elastic member between the shaft rod and the receiving groove of the connecting seat, so as to realize elastic contact between the cutter head and the ablation needle, thereby avoiding the situation where the needle body is damaged due to hard contact, and being able to maintain close contact between the annular cutter head and the heat shrink tube on the needle body, thereby ensuring that there is sufficient cutting force between the cutter head and the ablation needle, thereby avoiding the situation where the heat shrink tube is not completely cut through, and improving the cutting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attached Figure 1 This is a schematic diagram of the overall structure of the heat shrink sleeve cutting mechanism of the ablation needle of the utility model;

[0016] Attached Figure 2 It is a partial structural schematic diagram of the heat shrink sleeve cutting mechanism of the ablation needle of the utility model;

[0017] Attached Figure 3 For attachment Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle.

[0018] In the above drawings: 1. mounting block; 2. top plate; 3. support seat; 4. vertical drive mechanism; 5. shaft rod; 51. second guide rod; 6. bushing; 7. elastic member; 81. first fixed seat; 82. second fixed seat; 9. fixed sleeve; 10. annular cutter head; 11. connecting seat; 111. receiving groove; 12. connecting plate. DETAILED DESCRIPTION

[0019] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0020] Embodiment 1: A heat shrink sleeve cutting mechanism for an ablation needle, used for processing an ablation needle with a heat shrink sleeve, comprising: a support seat 3, a top plate 2 is horizontally arranged on one side of the support seat 3 on which a vertical driving mechanism 4 is installed, and a movable end of the vertical driving mechanism 4 is connected to the top plate 2; a plurality of connecting seats 11 are arranged on the lower surface of the top plate 2;

[0021] When in use, the top plate is driven to move downward in the vertical direction by the vertical driving mechanism, thereby driving the connecting seat and the mounting block to move downward until the annular cutter head on the mounting block contacts the heat shrink tube on the needle body;

[0022] A receiving groove 111 is vertically arranged inside the connecting seat 11, and the receiving groove 111 is connected to the bottom surface of the connecting seat 11, and a mounting block 1 with a shaft 5 on the top is arranged below the connecting seat 11, and the shaft 5 can slide up and down along the receiving groove 111, and an elastic member 7 is arranged between the top of the shaft 5 and the top wall of the receiving groove 111, and an adjustable gap is arranged between the mounting block 1 with the annular cutter head 10 connected to the bottom and the connecting seat 11;

[0023] The top plate is driven to continue to move downward a short distance. Under the reaction force of the heat shrink tube on the annular cutter head, the top mounting block will be pushed upward to drive the shaft rod to move upward along the shaft sleeve, so that the elastic part between the shaft rod and the accommodating groove is compressed to maintain the extrusion contact between the annular cutter head and the heat shrink tube, thereby achieving elastic contact between the annular cutter head and the needle body. While ensuring the cutting force between the two, the situation in which the needle body is broken due to hard contact is avoided.

[0024] A first fixing seat 81 and a second fixing seat 82 are disposed on the lower surface of the top plate 2, and a fixing sleeve 9 is disposed between the first fixing seat 81 and the second fixing seat 82. A plurality of the connecting seats 11 are disposed on the circumferential outer wall of the fixing sleeve 9 and along the length direction.

[0025] A shaft sleeve 6 is disposed between the inner wall of the accommodating groove 111 and the circumferential outer wall of the shaft rod 5 , and the shaft rod 5 can slide up and down along the inner wall of the shaft sleeve 6 .

[0026] The top of the shaft 5 has a second guide rod 51 , and the elastic member 7 is sleeved on the circumferential outer wall of the second guide rod 51 .

[0027] The diameter of the shaft rod 5 is 2.5 times the diameter of the second guide rod 51 .

[0028] The movable end of the vertical driving mechanism 4 is fixedly connected to the top plate 2 via a connecting plate 12 .

[0029] Embodiment 2: A heat shrink tube cutting mechanism, used for processing an ablation needle with a heat shrink tube, comprising: a support seat 3, a top plate 2 is horizontally arranged on one side of the support seat 3 on which a vertical driving mechanism 4 is installed, and a movable end of the vertical driving mechanism 4 is connected to the top plate 2; a plurality of connecting seats 11 are arranged on the lower surface of the top plate 2;

[0030] By arranging a mounting block under the connecting seat, an adjustment gap is provided between the mounting block and the connecting seat, so that the annular cutter head can move in the vertical direction, and an elastic member is provided between the mounting block and the receiving groove of the connecting seat through the shaft rod, so that the elastic contact between the cutter head and the ablation needle can be achieved, thereby avoiding the situation where the needle body is damaged due to hard contact, and maintaining the close contact between the annular cutter head and the heat shrink tube on the needle body, ensuring that there is sufficient cutting force between the cutter head and the ablation needle, avoiding the situation where the heat shrink tube is not completely cut through, and improving the cutting effect;

[0031] A receiving groove 111 is vertically arranged inside the connecting seat 11, and the receiving groove 111 is connected to the bottom surface of the connecting seat 11, and a mounting block 1 with a shaft rod 5 on the top is arranged below the connecting seat 11, and the shaft rod 5 can slide up and down along the receiving groove 111, and an elastic member 7 is arranged between the top of the shaft rod 5 and the top wall of the receiving groove 111, and an adjustable gap is provided between the mounting block 1 with an annular cutter head 10 connected to the bottom and the connecting seat 11.

[0032] A first fixing seat 81 and a second fixing seat 82 are disposed on the lower surface of the top plate 2, and a fixing sleeve 9 is disposed between the first fixing seat 81 and the second fixing seat 82. A plurality of connecting seats 11 are disposed on the circumferential outer wall of the fixing sleeve 9 and along the length direction.

[0033] The top of the shaft 5 has a second guide rod 51 , and the elastic member 7 is sleeved on the circumferential outer wall of the second guide rod 51 .

[0034] The diameter of the shaft rod 5 is 3.5 times the diameter of the second guide rod 51 .

[0035] The working principle is as follows: when in use, the needle body is placed on the connecting seat, and the top plate is driven to move downward in the vertical direction through the vertical driving mechanism, thereby driving the connecting seat and the mounting block to move downward until the annular cutter head on the mounting block contacts the heat shrink tube on the needle body;

[0036] The top plate is driven to continue to move downward a short distance. Under the reaction force of the heat shrink tube on the annular cutter head, the top mounting block will be pushed upward to drive the shaft rod to move upward along the shaft sleeve, so that the elastic part between the shaft rod and the accommodating groove is compressed to maintain the extrusion contact between the annular cutter head and the heat shrink tube, thereby achieving elastic contact between the annular cutter head and the needle body. While ensuring the cutting force between the two, the situation in which the needle body is broken due to hard contact is avoided.

[0037] When the above-mentioned ablation needle heat shrink tube cutting mechanism is adopted, a mounting block is arranged under the connecting seat, and an adjustment gap is provided between the mounting block and the connecting seat, so that the annular cutter head can move in the vertical direction, and an elastic part is provided between the mounting block and the accommodating groove of the connecting seat through the shaft rod, so that elastic contact between the cutter head and the ablation needle can be achieved, thereby avoiding the situation where hard contact causes damage to the needle body, and being able to maintain close contact between the annular cutter head and the heat shrink tube on the needle body, ensuring that there is sufficient cutting force between the cutter head and the ablation needle, avoiding the situation where the heat shrink tube is not completely cut through, and improving the cutting effect.

[0038] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A heat shrink sleeve cutting mechanism for an ablation needle, comprising: A support seat (3), characterized in that: a top plate (2) is horizontally arranged on one side of the support seat (3) on which a vertical driving mechanism (4) is installed, and a movable end of the vertical driving mechanism (4) is connected to the top plate (2); and a plurality of connecting seats (11) are arranged on the lower surface of the top plate (2); A receiving groove (111) is vertically arranged inside the connecting seat (11), and the receiving groove (111) is connected to the bottom surface of the connecting seat (11). A mounting block (1) having a shaft (5) at the top is arranged below the connecting seat (11), and the shaft (5) can slide up and down along the receiving groove (111). An elastic member (7) is arranged between the top of the shaft (5) and the top wall of the receiving groove (111), and an adjustable gap is provided between the mounting block (1) having an annular cutter head (10) connected to the bottom and the connecting seat (11).

2. The ablation needle heat shrink sleeve cutting mechanism according to claim 1, characterized in that: A first fixing seat (81) and a second fixing seat (82) are arranged on the lower surface of the top plate (2), and a fixing sleeve (9) is arranged between the two first fixing seats (81) and the second fixing seats (82). A plurality of connecting seats (11) are arranged on the circumferential outer wall of the fixing sleeve (9) and along the length direction.

3. The ablation needle heat shrink sleeve cutting mechanism according to claim 1, characterized in that: A shaft sleeve (6) is provided between the inner wall of the accommodating groove (111) and the circumferential outer wall of the shaft rod (5), and the shaft rod (5) is capable of sliding up and down along the inner wall of the shaft sleeve (6).

4. The ablation needle heat shrink sleeve cutting mechanism according to claim 1, characterized in that: The top of the shaft rod (5) is provided with a second guide rod (51), and the elastic member (7) is sleeved on the circumferential outer wall of the second guide rod (51).

5. The ablation needle heat shrink sleeve cutting mechanism according to claim 4, characterized in that: The diameter of the shaft rod (5) is 2 to 4 times the diameter of the second guide rod (51).

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