Guide pipe feeding device

Abstract

The utility model provides a guide pipe feeding device. A first linear guide rail is averagely divided into three stations; the number of the material boxes is two, the two material boxes are connected into a whole and occupy two stations, the two material boxes jointly do reciprocating motion along the first linear guide rail, it is guaranteed that one material box is located in the middle station, the other material box is located on the side station all the time, and the material boxes located on the side station wait for manual separation of guide pipes into single layers and are arranged neatly at intervals; the material box located at the middle station waits for the material taking mechanism to take materials; the material taking mechanism is located above the middle station and used for grabbing the guide pipe lifted to the top layer of the material box and transferring the guide pipe to the next working procedure. The automatic feeding device achieves automatic feeding of long and sticky medical catheters, shortens the feeding transfer distance, and has the remarkable effects that the roundness of the fed catheters is not deformed, the straightness of the catheters is not deformed, the feeding efficiency is high, the production efficiency is high, the labor intensity of workers is reduced, and the quality of products is guaranteed.

Description

Technical Field

[0001] The utility model relates to a catheter feeding device, belonging to the technical field of medical consumables assembly. Background Art

[0002] The infusion set for a pump is a high-end medical consumable. One section of the catheter uses a catheter with a diameter of 12.0 mm and a thickness of 2 mm. The cross-section roundness of the catheter is high, and the straightness of the catheter is high. In addition, to ensure accurate flow rate and flow stability, the catheter has good resilience after being extruded. Therefore, a PVC material is used. This material has strong adhesion on the outer surface of the catheter, and the catheters are prone to stick to each other. Finally, when air bubbles are generated in the pipeline, it is required to quickly detect the air bubbles and alarm. Then, the catheter has a high transparency and the surface cannot be sanded, which results in a very small surface roughness of the catheter and it adheres to other catheters. Therefore, such a catheter has characteristics such as a relatively thick diameter, a relatively thick wall thickness, and a relatively sticky surface.

[0003] Such a catheter is generally produced by an extrusion molding method. Plastic particles are heated and then extruded through a forming die head to form a hollow tube. It is traction formed in the front section and then cut into catheters of the same length (four specifications of 350 mm / 360 mm / 375 mm / 385 mm) by wire cutting after cooling, and stacked in a material box.

[0004] Correspondingly, the catheter automatic feeding equipment mostly uses vacuum to suck the head of the catheter, rises a certain height to separate from other catheters, and then pulls it along the axis of the catheter to the transfer platform for catheter end face alignment, and then transfers it to the assembly transfer fixture to wait for the assembly of subsequent processes.

[0005] According to the assembly rhythm, 8 catheters must be sucked at one time to meet the production requirements. Since the catheter is relatively soft, has a small surface curvature, and poor stiffness, it is difficult to form a vacuum. The success rate of sucking 8 catheters at one time through experiments is less than 50%.

[0006] For such catheters that are prone to stick to each other on the surface, have poor rigidity, and are relatively heavy compared to thinner tubes, the automatic feeding method by suction cannot meet the production rhythm requirements. Due to the lack of a suitable catheter feeding method, the current common method is manual feeding, which has disadvantages such as high labor intensity, low production efficiency, and high manufacturing cost. Content of the Utility Model

[0007] In order to solve the above problems, the utility model provides a catheter feeding device. Before feeding, the catheters are separated from each other through combing to avoid sticking to each other. After feeding, the roundness of the catheter remains unchanged and the straightness of the catheter remains unchanged. Feeding is carried out along the length direction perpendicular to the catheter to improve the catheter feeding efficiency at the same time.

[0008] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0009] A catheter loading device includes a bottom frame and a material box. Among them, a first linear guide rail is laid flat on the bottom frame, and the first linear guide rail is evenly divided into three workstations; two material boxes are used. The two material boxes are integrated into one body through a connecting plate one and occupy two workstations. One of the material boxes is drivingly connected to a cylinder through a connecting plate two. Under the action of the cylinder, the two material boxes jointly move reciprocally along the first linear guide rail, ensuring that there is always one material box at the middle workstation and one material box at the side workstation. Among them, the material box at the side workstation waits for an operator to separate the catheters into a single-layer and neatly arranged at intervals, and the material box at the middle workstation waits for the picking mechanism to pick up the materials;

[0010] The material box includes a bottom plate. Above the bottom plate, a fixing plate parallel to the bottom plate is provided. Along the direction of the first linear guide rail on the fixing plate, a row of evenly arranged vertical plates is provided. The gap between two adjacent vertical plates is used to hold the catheters, and the placing direction of the catheters is perpendicular to the first linear guide rail; Above the fixing plate, a moving plate parallel to the fixing plate is provided. Through holes for assembling and connecting with the vertical plates are provided on the moving plate. The bottom of the moving plate is drivingly connected to a vertically arranged first electric cylinder. Under the action of the first electric cylinder, the moving plate passes through the vertical plates and moves up or down along the vertical plates;

[0011] The picking mechanism is located above the middle workstation and is used to grab the catheters lifted to the top layer of the material box and transfer the catheters to the next process.

[0012] Preferably, two rows of the vertical plates are used and are correspondingly arranged at the two end positions of the catheters.

[0013] Preferably, a vertically arranged guide shaft is connected to the bottom surface of the moving plate. After the guide shaft sequentially passes through the guide holes on the fixing plate and the bottom plate, it is limited by a limit block arranged at the end of the guide shaft.

[0014] Preferably, the picking mechanism includes a first support frame. A second linear guide rail is laid on the first support frame. A rodless cylinder is drivingly connected to a moving frame arranged on the second linear guide rail. Under the action of the rodless cylinder, the moving frame moves along the second linear guide rail; A second electric cylinder and a gripper drivingly connected to the second electric cylinder are integrated on the moving frame, and several grippers are arranged in parallel.

[0015] Preferably, the picking mechanism is installed on a picking mechanism fixed support through a bracket arranged at the bottom. The picking mechanism fixed support includes a second support frame. A third linear guide rail is laid on the second support frame. A third electric cylinder is drivingly connected to an electric cylinder connecting plate on the third linear guide rail. Under the action of the third electric cylinder, the electric cylinder connecting plate moves along the third linear guide rail, and the electric cylinder connecting plate is fixedly connected to the bracket arranged at the bottom of the picking mechanism.

[0016] Advantages of the present utility model: The present utility model realizes the automatic feeding of long and sticky medical catheters, shortens the feeding and transfer distance, and has remarkable effects such as the unchanged roundness of the catheter after feeding, the unchanged straightness of the catheter, high feeding efficiency, high production efficiency, reducing the labor intensity of workers, and ensuring the product quality. Description of the Drawings

[0017] Figure 1 It is a state diagram of the present utility model with bin one full and bin two empty;

[0018] Figure 2 It is a state diagram of the present utility model with bin one empty and bin two full;

[0019] Figure 3 It is a state diagram of the present utility model with bin one or bin two full;

[0020] Figure 4 It is a state diagram of the present utility model with the last layer of catheters in bin one or bin two lifted;

[0021] Figure 5 It is a structural schematic diagram of the material taking mechanism of the present utility model;

[0022] Figure 6 It is a structural schematic diagram of the fixed support of the material taking mechanism of the present utility model;

[0023] Figure 7 It is an overall axonometric view of the present utility model.

[0024] In the figure: bottom frame 101, bin one 102, bin two 103, cylinder 104, connecting plate one 105, connecting plate two 106, first linear guide 107;

[0025] First electric cylinder 201, guide shaft 202, bottom plate 203, fixed plate 204, moving plate 205, vertical plate 206, catheter 207;

[0026] First support frame 301, rodless cylinder 302, second electric cylinder 303, second linear guide 304, air gripper 305, bracket 306, moving frame 307;

[0027] Second support frame 401, third electric cylinder 402, electric cylinder connecting plate 403, third linear guide 404. Detailed Embodiment

[0028] The following further explains the embodiments of the present utility model with reference to the drawings.

[0029] A catheter feeding device includes a bottom frame 101 and a material box. Among them, a first linear guide rail 107 is laid flat on the bottom frame 101, and the first linear guide rail 107 is evenly divided into three stations; two material boxes are used, denoted as material box one 102 and material box two 103. The material box one 102 and the material box two 103 are connected into one body through a connecting plate one 105 and occupy two stations. One of the material boxes is drivingly connected to a cylinder 104 through a connecting plate two 106. Under the action of the cylinder 104, the two material boxes jointly move reciprocally along the first linear guide rail 107, ensuring that there is always one material box in the middle station and one material box in the side station. Among them, the material box located in the side station waits for an operator to separate the catheters into a single-layer and neatly arranged at intervals, and the material box located in the middle station waits for a material taking mechanism to take the material.

[0030] As Figure 1 shown, in the initial state, the fully loaded material box one 102 is in the middle position, waiting for the material taking mechanism to take the material, and the empty material box two 103 is in the left end position, waiting for an operator to separate the catheters into a single-layer and neatly arranged at intervals; when the empty material box two 103 is filled with materials manually and waits until all the catheters in the material box one 102 are taken out, the cylinder 104 pushes the connecting plate two 106 connected to the material box to pull the two material boxes to move to the right. At this time, the fully loaded material box two 103 is in the middle position, waiting for the material to be taken; the empty material box one 102 moves to the right end position, waiting for an operator to separate the catheters into a single-layer and neatly arranged at intervals, as Figure 2 shown.

[0031] The material box one 102 and the material box two 103 have the same structure. As Figure 3 and Figure 4 shown, a single material box includes a bottom plate 203. Above the bottom plate 203, a fixing plate 204 parallel to the bottom plate 203 is provided. On the fixing plate 204, a row of evenly arranged vertical plates 206 is provided along the direction of the first linear guide rail 107. The gap between two adjacent vertical plates is used to hold the catheters 207, and the placing direction of the catheters 207 is perpendicular to the first linear guide rail 107; above the fixing plate 204, a moving plate 205 parallel to the fixing plate 204 is provided. The moving plate 205 is provided with through holes assembled and connected to the vertical plates 206. The bottom of the moving plate 205 is drivingly connected to a first electric cylinder 201 arranged vertically. Under the action of the first electric cylinder 201, the moving plate 205 passes through the vertical plates 206 and moves up or down along the vertical plates 206.

[0032] Further, two rows of vertical plates 206 are provided, correspondingly arranged at two end positions of the conduit 207. A vertically arranged guide shaft 202 is connected to the bottom surface of the moving plate 205. After the guide shaft 202 sequentially passes through the guide holes on the fixed plate 204 and the bottom plate 203, it is limited by a limit block provided at the end of the guide shaft 202. When the conduits in the top layer of the material box are all taken, the first electric cylinder 201 connected to the bottom plate 203, under the guiding action of the guide shaft 202, pushes the moving plate 205 to drive the conduit 207 to move upward along the vertical plate 206, so as to facilitate the picking gripper 305 to pick up the conduit 207 until all the conduits 207 are taken. The fixed plate 204 stabilizes the root of the vertical plate 206.

[0033] The picking mechanism is located above the middle station and is used to grab the conduits lifted to the top layer of the material box and transfer the conduits to the next process. As Figure 5 shown, the picking mechanism includes a first support frame 301. A second linear guide rail 304 is laid on the first support frame 301. The rodless cylinder 302 is drivingly connected to a moving frame 307 arranged on the second linear guide rail 304. Under the action of the rodless cylinder 302, the moving frame 307 moves along the second linear guide rail 304. The moving frame 307 is integrated with a second electric cylinder 303 and a gripper 305 drivingly connected to the second electric cylinder 303. A plurality of grippers 305 are arranged in parallel.

[0034] When the second electric cylinder 303 in the picking mechanism and the gripper 305 drivingly connected to the second electric cylinder 303 are in the lower left position shown in the figure, it is in the picking side. The second electric cylinder 303 moves downward, and the gripper 305 picks up the conduit 207. The second electric cylinder 303 moves back to the origin. Subsequently, the second electric cylinder 303 carrying the gripper 305 is pushed by the rodless cylinder 302 and the linear guide rail 304 to Figure 5 the upper right corner shown in the figure, and the second electric cylinder 303 lowers the conduit 207 onto the transfer platform of the next process.

[0035] Further, the picking mechanism is installed on the fixed support of the picking mechanism through a bracket 306 provided at the bottom. As Figure 6 shown, the fixed support of the picking mechanism includes a second support frame 401. A third linear guide rail 404 is laid on the second support frame 401. The third electric cylinder 402 is drivingly connected to an electric cylinder connecting plate 403 on the third linear guide rail 404. Under the action of the third electric cylinder 402, the electric cylinder connecting plate 403 moves along the third linear guide rail 404. The electric cylinder connecting plate 403 is fixedly connected to the bracket 306 provided at the bottom of the picking mechanism. When from Figure 6After taking 8 conduits 207 at a time starting from the upper left corner position shown, move forward a certain distance for the second material taking until the entire layer of conduits 207 is taken. Further, under the guiding action of the guiding shaft 202, the first electric cylinder 201 pushes the moving plate 205 to drive the conduits 207 to move upward by the diameter distance of the conduits along the vertical plate 206 until all the conduits 207 in the material box are taken out.

[0036] When the material box is emptied, the first electric cylinder 201 and the moving plate 205 are in the state as Figure 4 shown, lay the pump tubes 207 flat on the first layer and align them. After the first layer is laid flat, the moving plate 205 moves downward by the diameter distance of the conduits along with the electric cylinder, and start to manually lay the second layer until the material box is filled with conduits 207.

Claims

1. A catheter feeding device, characterized in that: It includes a bottom frame (101) and a bin. Among them, a first linear guide rail (107) is laid flat on the bottom frame (101), and the first linear guide rail (107) is evenly divided into three workstations; two bins are used. The two bins are connected into one body through a first connecting plate (105) and occupy two workstations. One of the bins is drivingly connected to a cylinder (104) through a second connecting plate (106). Under the action of the cylinder (104), the two bins move reciprocally along the first linear guide rail (107) together, ensuring that there is always one bin at the middle workstation and one bin at the side workstation. Among them, the bin at the side workstation waits for an operator to separate the ducts into a single-layer and neatly arranged at intervals, and the bin at the middle workstation waits for the picking mechanism to pick up the materials; The bin includes a bottom plate (203). Above the bottom plate (203), a fixing plate (204) parallel to the bottom plate (203) is provided. Along the direction of the first linear guide rail (107) on the fixing plate (204), a row of evenly arranged vertical plates (206) is provided. The gap between two adjacent vertical plates is used to hold the ducts (207), and the placing direction of the ducts (207) is perpendicular to the first linear guide rail (107); Above the fixing plate (204), a moving plate (205) parallel to the fixing plate (204) is provided. Through holes assembled and connected to the vertical plates (206) are provided on the moving plate (205). The bottom of the moving plate (205) is drivingly connected to a vertically arranged first electric cylinder (201). Under the action of the first electric cylinder (201), the moving plate (205) passes through the vertical plates (206) and moves up or down along the vertical plates (206); The picking mechanism is located above the middle workstation and is used to grab the ducts lifted to the top layer of the bin and transfer the ducts to the next process.

2. The catheter feeding device according to claim 1, wherein: Two rows of the vertical plates (206) are provided and are correspondingly arranged at the two end positions of the ducts (207).

3. The catheter feeding device according to claim 1, characterized in that: A vertically arranged guide shaft (202) is connected to the bottom surface of the moving plate (205). After the guide shaft (202) sequentially passes through the guide holes on the fixing plate (204) and the bottom plate (203), it is limited by a limit block provided at the end of the guide shaft (202).

4. The catheter feeding device according to claim 1, wherein: The picking mechanism includes a first support frame (301). A second linear guide rail (304) is laid on the first support frame (301). A rodless cylinder (302) is drivingly connected to a moving frame (307) provided on the second linear guide rail (304). Under the action of the rodless cylinder (302), the moving frame (307) moves along the second linear guide rail (304); A second electric cylinder (303) and a gripper (305) drivingly connected to the second electric cylinder (303) are integrated on the moving frame (307), and several grippers (305) are arranged in parallel.

5. The catheter loading device according to claim 1, wherein: The material taking mechanism is installed on the fixed support of the material taking mechanism through a bracket (306) arranged at the bottom. The fixed support of the material taking mechanism includes a second support frame (401). A third linear guide rail (404) is laid on the second support frame (401). A third electric cylinder (402) is drivingly connected to an electric cylinder connecting plate (403) on the third linear guide rail (404). Under the action of the third electric cylinder (402), the electric cylinder connecting plate (403) moves along the third linear guide rail (404). The electric cylinder connecting plate (403) is fixedly connected to the bracket (306) arranged at the bottom of the material taking mechanism.

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