A burr removing device for a TPU fixing ring of a notch protector

Abstract

This invention provides a burr removal device for TPU retaining rings of a cut protector, comprising a frame (1) and a table (2). The device is characterized by: a rotating frame (3) on the table (2), a TPU retaining ring clamping assembly (4) on the rotating frame (3), a movable frame (5) on the table (2), and a liftable electric scissor (6) on the movable frame (5). A retractable TPU retaining ring positioning assembly (7) is provided on the frame (1) below the table (2). The frame (1) also includes a control module for the rotating frame (3), the TPU retaining ring clamping assembly (4), and the TPU retaining ring positioning assembly (7). This invention has a simple structure, is easy to use, ensures product quality and improves the pass rate; replaces manual processing, reducing processing difficulty and skill requirements; and avoids direct contact between workers and sharp processing tools, eliminating safety hazards.

Description

Technical Field

[0001] This invention relates to the field of surgical consumables production, specifically to a burr removal device for a TPU retainer ring of an incision protector. Background Technology

[0002] Surgical incision protectors are commonly used surgical consumables, and the TPU retainer ring that forms the surgical channel is a crucial component. Current manufacturing methods primarily involve melting both ends of a TPU strip and then bonding them together to create the retainer ring. This method results in a ring of burrs extending outwards at the joint.

[0003] Traditionally, burr removal is done manually, with skilled workers using small scissors and blades to trim and smooth the burrs at the weld joints of products. Due to the high demand and production volume of TPU rings, the workload for workers is heavy, and the requirements for product finish are high. New employees are unable to handle the deburring work, and the training period for skilled workers is too long, leading to a decrease in production efficiency. Furthermore, the current processing method involves long hours of high-intensity labor and the use of sharp tools, posing certain safety hazards. Summary of the Invention

[0004] The present invention aims to overcome the shortcomings of the prior art by providing a burr removal device for the TPU retaining ring of the cut protector.

[0005] This application provides the following technical solution: A burr removal device for TPU retaining rings of a cut protector, comprising a frame and a table, characterized in that: a rotating frame is provided on the table, a TPU retaining ring clamping assembly is provided on the rotating frame, a movable frame is provided on the table, a liftable electric scissor is provided on the movable frame, a retractable TPU retaining ring positioning assembly is provided on the frame below the table, and a control module corresponding to and cooperating with the rotating frame, the TPU retaining ring clamping assembly and the TPU retaining ring positioning assembly is also provided on the frame.

[0006] Based on the above technical solutions, the following further technical solutions are also possible: The rotating frame includes: a pair of rotating frame mounting seats fixed on the table, a frame body rotatably connected between the two rotating frame mounting seats, a first motor connected to one side of one of the rotating frame mounting seats via a connecting frame, and a corresponding coupling between the output shaft of the first motor and the rotating shaft on one side of the frame body, so that the first motor and the frame body form a transmission connection through the coupling.

[0007] The TPU retaining ring clamping assembly includes a lead screw mounted on a frame via a set of lead screw mounting seats. A second motor is also provided on the frame. One end of the lead screw is connected to the second motor via a transmission wheel and a synchronous belt. The lead screw has two opposing threaded sections, each with a corresponding nut. A pair of first slide rails parallel to the lead screw are provided on the frame. A slider is mounted on each slide rail. A first clamping roller is fixedly mounted on each slider. A swing arm is hinged to the slider, and a corresponding clamping roller is mounted on the swing arm. A fixing post is mounted on the slider, and a tension spring connects the fixing post and the swing arm.

[0008] The movable frame includes a pair of second slide rails on a table on one side of the rotating frame, a second slide frame mounted on the second slide rails, a first linear transmission device corresponding to the second slide frame at one end of the second slide rails, a longitudinal slide rail on the second slide frame, a longitudinal slide table on the longitudinal slide rails, a second linear transmission device corresponding to the longitudinal slide table on the second slide frame, and a cantilever connected to the longitudinal slide table, with a pneumatic or electric scissor at one end of the cantilever.

[0009] The TPU retaining ring positioning assembly includes: cylinders arranged longitudinally on a frame below the table, a platform installed at the top of the cylinder output shaft, a third slide rail on the platform, a corresponding sliding block on the third slide rail, a burr positioning block on the sliding block, and a burr engaging groove on the burr positioning block that corresponds to the burrs on the TPU retaining ring.

[0010] The lead screw mounting base is provided with a TPU retaining ring placement plate.

[0011] A top spring is provided on the frame on one side of the swing arm, and a pressure roller corresponding to the swing arm is provided at one end of the top spring.

[0012] Advantages of the invention: This invention features a simple structure and is easy to use. By using a high-precision module in conjunction with a high-precision lead screw positioning and clamping fixture, and employing pneumatic shears for trimming, it further improves the product processing completion, ensures product quality, and increases the pass rate. It replaces manual processing, reducing processing difficulty and skill requirements. It also avoids direct contact between workers and sharp processing tools, eliminating safety hazards. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention during operation; Figure 2 yes Figure 1 A view from the other side; Figure 3 yes Figure 1 View from the other side Figure 4This is a schematic diagram of the invention with the placement plate removed; Figure 5 yes Figure 2 Enlarged view of A in the image. Detailed Implementation

[0014] like Figure 1-5 As shown, a burr removal device for a TPU retaining ring of a cut protector includes a frame 1 and a table 2, on which a rotating frame 3 is mounted.

[0015] The rotating frame 3 includes: a pair of rotating frame mounting seats 3a fixedly mounted on the platform 2, and a frame body 3b hinged between the two rotating frame mounting seats 3a. The frame body 3b includes a base plate a, and rotating shaft connecting seats b are mounted at both ends of the base plate a. The connecting seats b are rotatably connected to the rotating frame mounting seats 3a via rotating shafts. A connecting frame 3z is connected to one side of one of the rotating frame mounting seats 3a, and a first motor 3u is mounted on the connecting frame 3z. A coupling 3v is provided between the output shaft end of the first motor 3u and the rotating shaft in one of the rotating shaft connecting seats b, and the first motor 3u and the frame body 3b are connected by the coupling 3v for transmission.

[0016] A TPU retaining ring clamping assembly 4 is installed on the base plate a. The TPU retaining ring clamping assembly 4 includes a set of lead screw mounting seats 4a, on which a lead screw 4b is installed. A second motor 4c capable of forward and reverse rotation is installed on the back of the base plate a. The second motor 4c and one end of the lead screw 4b are connected by a transmission wheel 4d and a synchronous belt 4e. The lead screw 4b has two opposing threaded sections, and each threaded section has a corresponding nut 4f. A TPU retaining ring placement plate 8 is provided on the lead screw mounting seat 4a.

[0017] The base plate a is provided with first slide rails 4h distributed parallel to a pair of lead screws 4b. The two first slide rails 4h are coaxially distributed and are spaced apart by a certain distance. The base plate a between the two has a notch a1 that makes way for the pneumatic scissors mentioned below.

[0018] Each first slide rail 4h is equipped with a corresponding sliding block 4g, and the sliding block 4g is fixedly connected to the corresponding nut 4f by a connecting piece. When the motor 3d rotates forward or backward on the moving screw 4b, the two nuts 4f drive the two sliding blocks 4g to move inward or outward.

[0019] A first clamping roller 4j is fixedly mounted on each slider 4g. A swing arm 4t is also hinged to the slider 4g, and a second clamping roller 4k corresponding to and cooperating with the first clamping roller 4j is mounted on the swing arm 4t. A fixing post 4n is provided on the slider 4g outside the hinge point of the swing arm 4t. A tension spring 4m is connected between the fixing post 4n and the outer side of the front end of the swing arm 4t, and the tension spring 4m is located on the upper surface of the swing arm 4t.

[0020] A pair of support columns are provided on the base plate a on one side of the swing arm 4t. A top spring 4s is connected to each support column. A pressure roller 4x is connected to one end of the top spring 4s. The pressure roller 4x and the outer wall of the swing arm 4t form a rolling contact and apply a certain pressure to the swing arm 4t.

[0021] A movable frame 5 is provided on the platform 2. The movable frame 5 includes a pair of second slide rails 5a on one side of the platform 2 of the rotating frame 3. The axial direction of the second slide rails 5a is perpendicular to the axial direction of the first slide rail 4h. A second carriage 5b is mounted on the second slide rails 5a. A first linear transmission device 5c is provided at one end of the second slide rails 5a to cooperate with the second carriage 5b. The first linear transmission device 5c can be a cylinder, an electric push rod, or a linear motor, as is available in the prior art; a cylinder is used here.

[0022] A longitudinal slide rail 5d is provided on the second carriage 5b, and a longitudinal slide table 5e is provided on the longitudinal slide rail 5d. A second linear transmission device 5g is provided on the second carriage 5b, which corresponds to and cooperates with the longitudinal slide table 5e. The second linear transmission device 5g can be a cylinder, an electric push rod, or a linear motor in the prior art; a cylinder is used here.

[0023] A longitudinally distributed second slide rail 5k is connected to the longitudinal slide table 5e. A corresponding longitudinal slider 5t is provided on the second slide rail 5k. A corresponding locking pin (not shown in the figure) is provided on the longitudinal slider 5t. A cantilever 5h extending towards the TPU fixing ring clamping assembly 4 is connected to the longitudinal slider 5t. A pneumatic scissors 6 is fixedly connected to one end of the cantilever 5h.

[0024] A retractable TPU retaining ring positioning assembly 7 is provided on the frame 1 below the table 2, and a clearance hole 7g corresponding to the TPU retaining ring positioning assembly 7 is provided on the table 2. The TPU retaining ring positioning assembly 7 includes a cylinder 7a arranged longitudinally on the frame 1, a platform mounted on the top of the output shaft of the cylinder 7a, a third slide rail 7b on the platform, a corresponding slider on the third slide rail 7b, a burr positioning block 7c on the slider, and a burr engaging groove 7d on the burr positioning block 7c that corresponds to the burrs on the TPU retaining ring.

[0025] The frame 1 is also equipped with a control module (not shown in the figure) that works in electrical signal control with the first motor 3u, the second motor 4c, the first linear transmission device 5c, the second linear transmission device 5g, the pneumatic scissors 6 and the cylinder 7a.

[0026] Work process: First, based on the diameter of the TPU retaining ring 9, the second linear drive device 5g and the longitudinal slider 5t are provided to adjust the scissor head of the pneumatic scissors 5j to a suitable height.

[0027] Then, the cylinder outputs to extend the burr positioning block 7c out of the clearance hole 7g, which is located in the notch a1. Then, the worker places the TPU retaining ring 9 on the placement plate 8 and inserts the sheet-like burr 9a of the TPU retaining ring 9 into the burr snap-fit ​​groove 7d. Then, the TPU retaining rings 9 on both sides of the sheet-like burr 9a are snapped into the first clamping roller 4j and the second clamping roller 4k on both sides of the burr positioning block 7c, so that the TPU retaining ring 9 is clamped by the first clamping roller 4j and the second clamping roller 4k.

[0028] Then, the second motor 4c starts, driving the lead screw 4b to rotate, increasing the distance between the two nuts 4f on it. Simultaneously, the distance between the two sliders 4g also increases under the influence of the nuts 4f. At this time, the first clamping roller 4j and the second clamping roller 4k located on the two sliders 4g pull the TPU retaining ring 9 to both sides, tightening the sheet-like burrs on the TPU retaining ring 9. This ensures that no wrinkles form on the burrs, facilitating trimming by the pneumatic shears 5j while also allowing for quality inspection of the bonding strength of the TPU retaining ring 9. Then, the cylinder retracts, causing the burr positioning block 7c to retract below the table surface 2.

[0029] Finally, the first motor 3u is started, driving the frame 3b to rotate downwards so that the placement plate 8 is in a vertical position. Then, the first linear transmission device 5c is started, pushing the second carriage 5b forward so that the blade of the pneumatic shears 5j contacts the sheet-like burrs 9a. The pneumatic shears 5j are then started to remove the sheet-like burrs 9a. At the same time, the first motor 3u is started again, driving the frame 3b to rotate in the opposite direction so that the pneumatic shears 5j gradually remove all the sheet-like burrs 9a. After removal, the entire device is reset.

Claims

1. A burr removal device for a TPU retaining ring of a cut protector, comprising a frame (1) and a table (2), characterized in that: A rotating frame (3) is provided on the table (2), a TPU fixing ring clamping assembly (4) is provided on the rotating frame (3), a movable frame (5) is provided on the table (2), a liftable scissor (6) is provided on the movable frame (5), a retractable TPU fixing ring positioning assembly (7) is provided on the frame (1) below the table (2), and a control module corresponding to and cooperating with the rotating frame (3), the TPU fixing ring clamping assembly (4) and the TPU fixing ring positioning assembly (7) is also provided on the frame (1); The rotating frame (3) includes: a pair of rotating frame mounting seats (3a) fixed on the table (2), a frame body (3b) rotatably connected between the two rotating frame mounting seats (3a), a first motor (3u) connected to one side of one of the rotating frame mounting seats (3a) through a connecting frame (3z), and a corresponding coupling (3v) provided between the output shaft of the first motor (3u) and the rotating shaft on one side of the frame body (3b), so that the first motor (3u) and the frame body (3b) form a transmission cooperation through the coupling (3v); The TPU fixing ring clamping assembly (4) includes: a screw (4b) mounted on the frame (3b) via a set of screw mounting seats; a second motor (4c) is also provided on the frame (3b); one end of the screw (4b) is connected to the second motor (4c) via a transmission wheel (4d) and a synchronous belt (4e); the screw (4b) has two reverse threaded sections; a nut (4f) is provided on each threaded section; a pair of first slide rails (4h) are provided on the frame (3b) parallel to the screw (4b); a slider (4g) is provided on the first slide rails (4h); and the slider (4g) is fixedly connected to the corresponding nut (4f). A first clamping roller (4j) is fixedly provided on each slider (4g), and a swing arm (4t) is also hinged on the slider (4g). A second clamping roller (4k) corresponding to and cooperating with the first clamping roller (4j) is provided on the swing arm (4t). A fixed post (4n) is provided on the slider (4g), and a tension spring (4m) is connected between the fixed post (4n) and the swing arm (4t). The positioning component (7) includes: a cylinder (7a) arranged longitudinally on a frame (1) below the table (2), a platform installed at the top of the output shaft of the cylinder (7a), a third slide rail (7b) on the platform, a corresponding sliding block on the third slide rail (7b), a burr positioning block (7c) on the sliding block, and a burr snap-fit ​​groove (7d) on the burr positioning block (7c) that corresponds to the burr on the TPU fixing ring.

2. The burr removal device for the TPU retaining ring of the cut protector according to claim 1, characterized in that: The movable frame (5) includes a pair of second slide rails (5a) on a table (2) on one side of the rotating frame (3), a second slide (5b) on the second slide rails (5a), a first linear transmission device (5c) that corresponds to and cooperates with the second slide (5b) at one end of the second slide rails (5a), a longitudinal slide rail (5d) on the second slide (5b), a longitudinal slide table (5e) on the longitudinal slide rail (5d), a second linear transmission device (5g) that corresponds to and cooperates with the longitudinal slide table (5e) on the second slide (5b), and a cantilever (5h) connected to the longitudinal slide table (5e). A pneumatic or electric scissor (6) is provided at one end of the cantilever (5h).

3. The burr removal device for the TPU retaining ring of the cut protector according to claim 1, characterized in that: A TPU retaining ring placement plate (8) is provided on the lead screw mounting base.

4. The burr removal device for the TPU retaining ring of the cut protector according to claim 1, characterized in that: A top spring (4s) is provided on the frame (3b) on one side of the swing arm (4t), and a pressure roller (4x) is provided at one end of the top spring (4s) to cooperate with the swing arm (4t).

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