Cutting device for medical TPU hose preparation

Abstract

The utility model discloses a be used for medical TPU hose preparation cutting after unloading device, including the conveyer belt of transportation pipe body, the both sides of conveyer belt are opposite and are equipped with extrusion subassembly and damping elastic component respectively, and the pipe body is clamped between extrusion subassembly and damping elastic component under the driving of extrusion subassembly and the elastic action of damping elastic component, under the continuous extrusion of extrusion subassembly, the pipe body is moved to the cooling assembly just below located the outside of conveyer belt and carries out cooling, and the below of cooling assembly is obliquely equipped with the unloading plate, and the below of unloading plate is equipped with the tray, and the reset speed of extrusion subassembly through the damping effect is greater than the reset speed of damping elastic component, can realize automatic unloading, avoids the waste pipe of TPU pipe bending.

Description

Technical Field

[0001] This utility model relates to the field of medical plastic product processing equipment technology, and in particular to a feeding device for cutting and preparing medical TPU tubing. Background Technology

[0002] Existing medical products include TPU tubing, which uses equipment shared with other plastic tubing manufacturing equipment. The process involves feeding TPU lumps into an assembly line for processing, then cutting them into segments, and finally conveying them out piece by piece via a conveyor belt on a work platform. However, the following problem exists during the final unloading: TPU hoses retain some residual heat after manufacturing, making the hose highly malleable and viscous. If the hose is unloaded using a conveyor belt, it is very easy for the hose to bend and become a waste hose. The unloading of existing TPU hoses is generally done manually, with two people working together to pick up both ends of the hose, remove it from the conveyor belt, and arrange it on a pallet. This process is inefficient, cumbersome, and lacks automation. Utility Model Content

[0003] This utility model provides a feeding device for medical TPU tubing after cutting, aiming to solve the problems mentioned above, such as the high plasticity, high viscosity, and difficulty in unloading, as well as the low degree of automation in unloading of existing TPU tubing after preheating.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A feeding device for cutting and preparing medical TPU tubing includes a conveyor belt for transporting the tubing. An extrusion assembly and a damping elastic assembly are respectively positioned opposite each other on both sides of the conveyor belt. The tubing is clamped between the extrusion assembly and the damping elastic assembly under the drive of the extrusion assembly and the elastic action of the damping elastic assembly. Under continuous extrusion from the extrusion assembly, the tubing is moved under a cooling assembly located outside the conveyor belt for cooling. A discharge plate is inclined below the cooling assembly, and a tray is positioned below the discharge plate. Due to the damping effect, the reset speed of the extrusion assembly is greater than the reset speed of the damping elastic assembly.

[0005] Preferably, both the extrusion assembly and the damping elastic assembly are provided with elastic pads on the side near the tube body, so that when clamped, both sides of the tube body are wrapped in the elastic pads.

[0006] More preferably, the elastic pad layer is a sponge layer.

[0007] Preferably, the extrusion assembly includes a mounting plate fixed to one side of the conveyor belt. Two synchronously output electric cylinders are detachably fixed to the top of the mounting plate via a base and fasteners. The output shafts of the electric cylinders are perpendicular to the conveying direction and point to the middle of the conveyor belt. The ends of the output shafts of the electric cylinders are connected via the same extrusion plate, which is parallel to the conveying direction.

[0008] Preferably, both the damping elastic component and the cooling component are detachably fixedly mounted on the mounting frame, and the mounting frame is detachably fixedly engaged with the edge of the working platform where the conveyor belt is located.

[0009] More preferably, the mounting frame includes a fixed plate arranged vertically and parallel to the conveying direction, a damping elastic component and a cooling component are provided on the side of the fixed plate near the conveyor belt, and an L-shaped fixing frame is provided on the side of the fixed plate away from the conveyor belt. A fixing clip is provided on the end of the L-shaped fixing frame away from the fixed plate and is sleeved on the edge of the working platform. The fixing clip is fixedly engaged with the working platform by bolts, and the fixed plate is suspended on the working platform by the L-shaped fixing frame.

[0010] Furthermore, the damping elastic component includes a receiving plate parallel to the fixed plate. The receiving plate and the fixed plate are connected by a first support column. The first support column is installed on the receiving plate by a base and fasteners. A force-bearing plate parallel to the receiving plate is provided on the side of the receiving plate away from the fixed plate. Both ends of the force-bearing plate near the receiving plate are provided with sliding rods perpendicular to the force-bearing plate. The sliding rods all pass through the receiving plate to form sliding, and a damping material ring is provided at the penetration point. The sliding rods and the damping material rings cooperate to form damped sliding. A spring is sleeved on the sliding rod between the force-bearing plate and the receiving plate.

[0011] Furthermore, the cooling assembly includes a rectangular exhaust port parallel to the fixed plate, with the exhaust end pointing vertically downwards towards the unloading plate. The exhaust port is connected to the fixed plate via a second support column, which is mounted on the receiving plate via a base and fasteners. A fan is provided on one side of the working platform, and the fan's exhaust port is sealed and connected to the exhaust port via an air pipe for air supply.

[0012] Preferably, a control box is provided on one side of the working platform where the conveyor belt is located. The extrusion assembly, cooling assembly and conveyor belt are all electrically connected to the controller in the control box, and a touch screen is provided on the outside of the control box.

[0013] More preferably, the extrusion assembly is provided with a sensing sensor on the side near the tube body for sensing the tube body, and the damping elastic assembly is provided with a distance measuring sensor on the side away from the tube body for sensing the displacement distance of the damping elastic assembly. Both the damping elastic assembly and the sensing sensor are electrically connected to the controller in the control box.

[0014] The beneficial effects of this utility model are: 1. This utility model can clamp the tube body through the extrusion component and the damping elastic component and cool it under the cooling component. After moving to the unloading plate, it is automatically unloaded. The unloading is completed at the same time as cooling, which helps the tube body to be straight and shaped, reduces the subsequent viscosity and plasticity, and improves the yield of the tube body. 2. By establishing control through the control box, a foundation for automation is laid, reducing the workload of workers. Subsequently, automatic unloading can be achieved through various sensors, improving the efficiency and stability of unloading. Attached Figure Description

[0015] Figure 1 This is a structural diagram of one side of the present invention during the initial clamping step; Figure 2 This is a schematic diagram of the structure on the other side of the present invention during the initial clamping step; Figure 3 This is a schematic diagram of the structure on the other side of the present invention when it reaches the unloading step; Figure 4 This is a partially enlarged schematic diagram of the hose at the unloading step of this utility model; Figure 5 This is a partially enlarged schematic diagram of the hose during the initial clamping step of this utility model; In the diagram: 1. Extrusion assembly; 101. Mounting plate; 102. Electric cylinder; 103. Extrusion plate; 2. Damping elastic component; 201. Support plate; 202. First support column; 203. Force plate; 204. Slide rod; 205. Spring; 206. Damping material ring; 3. Cooling components; 301. Exhaust vent; 302. Second support column; 303. Air duct; 304. Fan; 4. Mounting bracket; 401. Fixing plate; 402. L-shaped fixing bracket; 403. Diagonal brace; 404. Fixing clamp; 405. Bolt; 5. Elastic padding layer; 6. Inductive sensor; 7. Distance sensor; 8. Unloading plate; 9. Pallet; 10. Conveyor belt; 11. Control box; 12. Working platform; 13. Pipe body. Detailed Implementation

[0016] The embodiments will be further described below with reference to the accompanying drawings.

[0017] like Figures 1-5As shown in the preferred embodiment 1, the unloading device for the preparation and cutting of medical TPU tubing includes a conveyor belt 10 for transporting the tubing body 13. An extrusion assembly 1 and a damping elastic assembly 2 are respectively provided on opposite sides of the conveyor belt 10. The tubing body 13 is clamped between the extrusion assembly 1 and the damping elastic assembly 2 under the driving force of the extrusion assembly 1 and the elastic action of the damping elastic assembly 2. Under the continuous extrusion of the extrusion assembly 1, the tubing body 13 is clamped and moved to a position directly below a cooling assembly 3 located outside the conveyor belt 10 for cooling. A discharge plate 8 is inclinedly provided below the cooling assembly 3, and a tray 9 is provided below the discharge plate 8. Due to the damping effect, the reset speed of the extrusion assembly 1 is greater than the reset speed of the damping elastic assembly 2.

[0018] The feeding device for cutting and preparing medical TPU tubing in Example 1 includes two steps: Clamping step: The extrusion assembly 1 provides driving force to move toward the damping elastic assembly 2. Through the reaction force provided by the damping elastic assembly 2, the extrusion assembly 1 and the damping elastic assembly 2 clamp the tube 13 and move to the underside of the cooling assembly 3 before braking. The cooling assembly 3 cools the residual heat of the clamped tube 13 and reduces the plasticity and viscosity of the tube 13. Unloading steps: After cooling and shaping, the extrusion component 1 returns to its original position, and the damping elastic component 2 also gradually returns to its original position due to its elasticity. However, due to the damping effect of the damping elastic component 2, the speed at which the damping elastic component 2 returns to its original position is less than that of the extrusion component 1. This causes the clamping force between the extrusion component 1 and the damping elastic component 2 on the tube 13 to loosen, and the tube 13 falls onto the inclined unloading plate 8. Under the action of the wind force of the cooling component 3 and the gravity of the tube 13, the tube 13 slides down the unloading plate 8 onto the tray 9, completing the unloading. The damping elastic component 2 returns to its original position to await the next unloading.

[0019] Medical TPU tubing has a smaller diameter and thicker walls, making it less prone to flattening and able to withstand a certain amount of pressure for compression.

[0020] In a preferred embodiment 2, both the compression assembly 1 and the damping elastic assembly 2 are provided with elastic pads 5 on the side near the tube body 13. When clamped, both sides of the tube body 13 are wrapped in the elastic pads 5. This ensures a certain degree of elasticity, buffering the tube body 13 during compression and preventing excessive deformation of the tube body 13.

[0021] In a more preferred embodiment 3, the elastic pad 5 is a sponge layer. It has a certain degree of elasticity and low viscosity, which can buffer the tube 13, clamp and shape it to ensure that the tube 13 is straight, while avoiding deformation of the tube 13 and not affecting the unloading of the tube 13.

[0022] As a preferred embodiment 4, the extrusion assembly 1 includes a mounting plate 101 fixed to one side of the conveyor belt 10. The top of the mounting plate 101 is detachably fixed with two synchronously output electric cylinders 102 via a base and fasteners. The output shafts of the electric cylinders 102 are perpendicular to the conveying direction and point to the middle position of the conveyor belt 10. The ends of the output shafts of the electric cylinders 102 are connected via the same extrusion plate 103, which is parallel to the conveying direction.

[0023] During extrusion, the electric cylinder 102 provides extrusion force, which drives the extrusion plate 103 to move synchronously, pushing the tube 13 until it contacts the damping elastic component 2 to form a clamping fit with the tube 13.

[0024] Preferably, the extrusion plate 103 is provided with an elastic pad 5 on the side near the tube body 13.

[0025] In a preferred embodiment 5, both the damping elastic component 2 and the cooling component 3 are detachably fixedly mounted on the mounting frame 4, and the mounting frame 4 is detachably fixedly engaged with the edge of the working platform 12 where the conveyor belt 10 is located.

[0026] As a more preferred embodiment 6, the mounting frame 4 includes a vertically arranged fixed plate 401 parallel to the conveying direction, a damping elastic component 2 and a cooling component 3 disposed on the side of the fixed plate 401 near the conveyor belt 10, and an L-shaped fixing frame 402 disposed on the side of the fixed plate 401 away from the conveyor belt 10. A fixing clip 404 is disposed on the end of the L-shaped fixing frame 402 away from the fixed plate 401 and is sleeved on the edge of the working platform 12. The fixing clip 404 is fixedly engaged with the working platform 12 by bolts 405, and the fixed plate 401 is suspended on the working platform 12 by the L-shaped fixing frame 402.

[0027] The damping elastic component 2 and cooling component 3 can be suspended in the air by the fixed plate 401, which facilitates the placement of the pallet 9 and the stacking of materials while ensuring functionality.

[0028] As a more preferred embodiment 7, there are two L-shaped fixing brackets 402, and the L-shaped fixing brackets 402 are symmetrical about the middle position of the fixing plate 401 to ensure installation stability; Each L-shaped fixing bracket 402 is reinforced with a diagonal brace 403 between its right-angled sides.

[0029] As a more preferred embodiment 8, the damping elastic component 2 includes a receiving plate 201 parallel to the fixed plate 401. The receiving plate 201 and the fixed plate 401 are connected by a first support column 202. The first support column 202 is installed on the receiving plate 201 by a base and fasteners. A force-bearing plate 203 parallel to the receiving plate 201 is provided on the side of the receiving plate 201 away from the fixed plate 401. Both ends of the force-bearing plate 203 near the receiving plate 201 are provided with sliding rods 204 perpendicular to the force-bearing plate 203. The sliding rods 204 all pass through the receiving plate 201 to form sliding, and a damping material ring 206 is provided at the penetration point. The sliding rods 204 and the damping material rings 206 cooperate to form damped sliding. A spring 205 is sleeved on the sliding rods 204 between the force-bearing plate 203 and the receiving plate 201.

[0030] During extrusion, because the force provided by the extrusion assembly 1 is greater than the elastic force and the damping force, and because the force plate 203 cooperates with the extrusion plate 103 of the extrusion assembly 1 to clamp the tube 13 under the push of the extrusion assembly 1, the slide rod 204 slides damped at the through-hole of the receiving plate 201 through the damping material ring 206, and the spring 205 is in the energy storage state, providing a reaction force to clamp the tube 13 and play a certain buffering role, preventing the tube 31 from being completely flattened until it moves to the designated position outside the conveyor belt 10; During unloading, the reset speed of the extrusion component 1 is controlled. Due to the resistance sliding, the reset speed of the extrusion component 1 is greater than the reset speed of the damping elastic component 2. At this time, the force of the extrusion component 1 will be released first, causing the clamping state to be broken instantly. The tube 13 falls rapidly to the unloading plate 8 under the action of the wind force of the cooling component 3 and the gravity of the tube 13. Then it falls into the tray 9 along the unloading plate 8 to complete the unloading. The spring 205 is in the energy release state, and the elastic force is greater than the damping force, so that the force plate 203 gradually resets and waits for the next use.

[0031] The force plate 203 is initially located on the side of the conveyor belt 1, and after being squeezed, it moves to the outside of the conveyor belt 1 for easy unloading.

[0032] Preferably, there are two first support columns 202, both of which are perpendicular to the fixing plate 401, and the two support columns 202 are symmetrical about the middle position of the receiving plate 201. One end of the spring 205 is welded and fixed to the receiving plate 201, and the other end of the spring 205 is welded and fixed to the force-bearing plate 203. An elastic pad 5 is provided on the side of the load-bearing plate 203 near the tube body 13.

[0033] In a more preferred embodiment 9, the cooling assembly 3 includes a rectangular exhaust port 301 parallel to the fixed plate 401. The exhaust port 301's outlet points vertically downwards towards the unloading plate 8. The exhaust port 301 is connected to the fixed plate 401 via a second support column 302. The second support column 302 is mounted on the receiving plate 201 via a base and fasteners. A fan 304 is provided on one side of the working platform 12. The exhaust port of the fan 304 is sealed and connected to the exhaust port 301 via an air pipe 303 for air supply. This system dissipates heat through airflow, reducing residual heat and thus aiding in shaping, reducing plasticity and viscosity. It also assists in unloading.

[0034] Preferably, the length of the rectangle of the exhaust port 301 is not less than the length of the pipe body 13, and it has a certain width, so that the pipe body 13 will be continuously cooled as it gradually moves to the preset position after being clamped.

[0035] In a preferred embodiment 10, a control box 11 is provided on one side of the working platform 12 where the conveyor belt 10 is located. The extrusion assembly 1, the cooling assembly 3, and the conveyor belt 10 are all electrically connected to the controller inside the control box 11. A touch screen is provided on the outside of the control box 11. The operator can control the unloading process through the control box 11, laying the foundation for automatic control.

[0036] Preferably, an existing industrial PLC controller can be used as the controller.

[0037] As a preferred embodiment 11, the extrusion assembly 1 is provided with a sensing sensor 6 on the side near the tube body 13 for sensing the tube body 13, and the damping elastic assembly 2 is provided with a distance measuring sensor 7 on the side away from the tube body 13 for sensing the displacement distance of the damping elastic assembly 2. Both the damping elastic assembly 2 and the sensing sensor 6 are electrically connected to the controller in the control box 11.

[0038] Preferably, the sensing sensor 6 can be an existing infrared sensing sensor, and the ranging sensor 7 can be an existing laser ranging sensor. The extrusion assembly 1 and the conveyor belt 10 can be automatically controlled by the controller in conjunction with the sensing sensor 6 and the distance sensor 7. The sensing sensor 6 is embedded in the extrusion plate 103, and the elastic pad 5 at the corresponding position of the sensing end of the sensing sensor 6 is provided with a hole for sensing the passage of the tube body 13. The distance sensor 7 is located on the side of the force plate 203 near the support plate 201 and is used to measure the relative distance between the force plate 203 and the support plate 201.

[0039] The control flow can be as follows: When the sensing sensor 6 detects the passage of the tube 13, it indicates that the tube 13 has reached the designated position. The sensing sensor 6 brakes the conveyor belt 10 through the controller and enters the clamping step. After the tube 13 is clamped, it gradually moves and the cooling component 3 dissipates heat. During the process, the distance sensor 7 continuously monitors the distance between the force plate 203 and the support plate 201. When the distance detected by the distance sensor 7 reaches the unloading set value, it indicates that the tube body 13 has moved to the predetermined unloading position. The distance sensor 7 enters the unloading step through the controller. The extrusion component 1 and the damping elastic component 2 are restored in sequence, and the tube body 13 completes the unloading. During the process, the distance sensor 7 continuously monitors the distance between the force plate 203 and the receiving plate 201. When the distance detected by the distance sensor 7 reaches the feeding set value, the distance sensor 7 starts the conveyor belt 10 to feed again through the controller and waits for the next cycle.

[0040] The working principle of this utility model: Clamping step: The extrusion assembly 1 provides driving force to move toward the damping elastic assembly 2. Through the reaction force provided by the damping elastic assembly 2, the extrusion assembly 1 and the damping elastic assembly 2 clamp the tube 13 and move to the underside of the cooling assembly 3 before braking. The cooling assembly 3 cools the residual heat of the clamped tube 13 and reduces the plasticity and viscosity of the tube 13. Unloading steps: After cooling and shaping, the extrusion component 1 returns to its original position, and the damping elastic component 2 also gradually returns to its original position due to its elasticity. However, due to the damping effect of the damping elastic component 2, the speed at which the damping elastic component 2 returns to its original position is less than that of the extrusion component 1. This causes the clamping force between the extrusion component 1 and the damping elastic component 2 on the tube 13 to loosen, and the tube 13 falls onto the inclined unloading plate 8. Under the action of the wind force of the cooling component 3 and the gravity of the tube 13, the tube 13 slides down the unloading plate 8 onto the tray 9, completing the unloading. The damping elastic component 2 returns to its original position to await the next unloading.

Claims

1. A device for preparing a cut-off of a medical TPU hose, comprising a conveyor belt (10) that transports the body of the hose (13), characterized in that, On both sides of the conveyor belt (10), there are respectively a pressing component (1) and a damping elastic component (2). The tube (13) is clamped between the pressing component (1) and the damping elastic component (2) under the driving of the pressing component (1) and the elastic action of the damping elastic component (2). Under the continuous pressing of the pressing component (1), the tube (13) is clamped and moved to the cooling component (3) located outside the conveyor belt (10) for cooling. The unloading plate (8) is inclined below the cooling component (3), and the tray (9) is provided below the unloading plate (8). The reset speed of the pressing component (1) is greater than the reset speed of the damping elastic component (2) due to the damping action.

2. The feeding device for cutting and preparing medical TPU tubing according to claim 1, characterized in that, Both the extrusion assembly (1) and the damping elastic assembly (2) are provided with elastic pads (5) on the side near the tube body (13). When clamped, both sides of the tube body (13) are wrapped in the elastic pads (5).

3. The cutting post blanking device for medical TPU hose preparation according to claim 2, characterized in that, The elastic pad (5) is a sponge layer.

4. The device for preparing the cut-off of the medical TPU hose according to claim 1, characterized in that, The extrusion assembly (1) includes a mounting plate (101) fixed to one side of the conveyor belt (10). Two synchronously output electric cylinders (102) are detachably fixed to the top of the mounting plate (101) by means of a base and fasteners. The output shafts of the electric cylinders (102) are perpendicular to the conveying direction and point to the middle position of the conveyor belt (10). The ends of the output shafts of the electric cylinders (102) are connected by the same extrusion plate (103), which is parallel to the conveying direction.

5. The device for preparing the cut-off of the medical TPU hose according to claim 1, characterized in that, The damping elastic component (2) and the cooling component (3) are both detachably fixed on the mounting frame (4), and the mounting frame (4) is detachably fixed to the edge of the working platform (12) where the conveyor belt (10) is located.

6. The cutting post blanking device for medical TPU hose preparation of claim 5, wherein, The mounting frame (4) includes a vertically arranged fixed plate (401) parallel to the conveying direction, a damping elastic component (2) and a cooling component (3) on the side of the fixed plate (401) close to the conveyor belt (10), and an L-shaped fixing frame (402) on the side of the fixed plate (401) away from the conveyor belt (10). A fixing clip (404) is provided on the end of the L-shaped fixing frame (402) away from the fixed plate (401) and is sleeved on the edge of the working platform (12). The fixing clip (404) is fixedly engaged with the working platform (12) by bolts (405). The fixed plate (401) is suspended on the working platform (12) by the L-shaped fixing frame (402).

7. The cutting post blanking device for medical TPU hose preparation of claim 6, wherein, The damping elastic component (2) includes a receiving plate (201) parallel to the fixed plate (401). The receiving plate (201) and the fixed plate (401) are connected by a first support column (202). The first support column (202) is installed on the receiving plate (201) by a base and fasteners. A force-bearing plate (203) parallel to the receiving plate (201) is provided on the side of the receiving plate (201) away from the fixed plate (401). 03) Both ends of the side near the receiving plate (201) are provided with sliding rods (204) perpendicular to the force plate (203). The sliding rods (204) all pass through the receiving plate (201) to form sliding, and a damping material ring (206) is provided at the passage. The sliding rods (204) and the damping material ring (206) cooperate to form damped sliding. A spring (205) is sleeved on the sliding rods (204) between the force plate (203) and the receiving plate (201).

8. The device for preparing the cut-off of the medical TPU hose according to claim 6, characterized in that, The cooling assembly (3) includes a rectangular exhaust port (301) parallel to the fixed plate (401). The exhaust end of the exhaust port (301) points vertically downward toward the unloading plate (8). The exhaust port (301) and the fixed plate (401) are connected by a second support column (302). The second support column (302) is installed on the receiving plate (201) by a base and fasteners. A fan (304) is provided on one side of the working platform (12). The exhaust port of the fan (304) is sealed and connected to the exhaust port (301) through an air pipe (303) to supply air.

9. The device for preparing the cut-off of medical TPU hose according to any one of claims 1-8, characterized in that, A control box (11) is provided on one side of the working platform (12) where the conveyor belt (10) is located. The extrusion assembly (1), cooling assembly (3) and conveyor belt (10) are all electrically connected to the controller in the control box (11). A touch screen is provided on the outside of the control box (11).

10. The cutting post blanking device for medical TPU hose preparation of claim 9, wherein, The extrusion assembly (1) is provided with a sensing sensor (6) on the side close to the tube body (13) for sensing the tube body (13), and the damping elastic assembly (2) is provided with a distance sensor (7) on the side away from the tube body (13) for sensing the displacement distance of the damping elastic assembly (2). Both the damping elastic assembly (2) and the sensing sensor (6) are electrically connected to the controller in the control box (11).

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