Automatic screwing device for end cover of pressure extension pipe

Abstract

The utility model provides a pressure extension tube end cover automatic screwing device which is characterized in that the pressure extension tube end cover automatic screwing device comprises an end cover machine frame (4), an end cover translation material taking assembly (401), an end cover feeding frame (402), a horizontal moving frame (403), a pressure extension tube clamping assembly (404) and a Luer taper clamping assembly (405) are arranged on the end cover machine frame (4), and an end cover overturning screwing assembly (406) is further arranged on the horizontal moving frame (403). And an end cover feeding machine (407) correspondingly matched with the end cover feeding frame (402) is arranged on one side of the end cover rack (4). The device is compact in structure and convenient to use, the production efficiency is improved, the problem that the screwing force cannot be accurately controlled manually is solved, the labor intensity is reduced, the labor cost is reduced, and the enterprise revenue is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical consumable production equipment, specifically to an automatic tightening device for pressure extension tube end caps. Background Technology

[0002] During the assembly and processing of pressure extension tubing for medical infusion lines, workers need to manually screw on end caps to the bonded products. Manual tightening requires workers to screw the end caps into the threads of the Luer connector. However, the tightening force between the end cap and the connector is crucial; it cannot be too loose to avoid detachment, nor too tight to prevent removal. Therefore, controlling the tightening force manually is difficult, easily leading to end cap detachment or difficulty in removal, which directly affects product quality and yield. Furthermore, the sharp edges of the end caps cause finger pain and fatigue for workers during prolonged manual tightening, reducing production efficiency. Therefore, a more efficient, faster, more accurate, and reliable automatic tightening device is urgently needed. Utility Model Content

[0003] The present invention aims to overcome the shortcomings of the prior art by providing an automatic tightening device for the end cap of a pressure extension tube.

[0004] This application provides the following technical solution:

[0005] An automatic tightening device for pressure extension tube end caps is characterized in that: it includes an end cap frame, on which are provided an end cap translation and material picking assembly, an end cap feeding rack, a horizontal moving frame assembly, a pressure extension tube clamping assembly, and a Luer connector clamping assembly; the horizontal moving frame assembly is also provided with an end cap flipping and tightening assembly; an end cap feeding machine corresponding to and cooperating with the end cap feeding rack is provided on one side of the end cap frame; and a feeding channel is provided between the end cap feeding machine and the end cap feeding rack.

[0006] Based on the above technical solutions, the following further technical solutions are also possible:

[0007] The end cap translation and material handling assembly includes a pair of horizontal mounting plates on the upper part of the end cap frame. Each horizontal mounting plate is provided with horizontally distributed guide rails, and corresponding sliding blocks are provided on the guide rails. A connecting horizontal plate spans between the two sliding blocks. A connecting vertical plate is installed on the connecting horizontal plate. An end cap longitudinal cylinder is provided on the connecting vertical plate. A second connecting horizontal plate is provided at the output end of the end cap longitudinal cylinder. A set of end cap clamping cylinders is provided on the second connecting horizontal plate. Each end cap clamping cylinder is provided with a pair of corresponding end cap grippers. A translation output cylinder that forms a transmission cooperation with the connecting horizontal plate is installed on the end cap frame.

[0008] The end cap feeding rack includes a plate body, on which a feeding plate is provided, and on the feeding plate a set of feeding slots corresponding to and connected to the feeding channel.

[0009] The horizontal moving frame assembly includes a pair of moving frame slide rails on the base plate of the end cover frame, a frame spanning the slider corresponding to the moving frame slide rails, a moving frame push cylinder corresponding to the moving frame slide rails on the end cover frame, and a limiting block corresponding to the frame on the base plate on one side of the moving frame slide rails.

[0010] The pressure extension tube clamping assembly includes an upper cylinder and a lower cylinder symmetrically distributed on the end cap frame; an upper positioning plate on the output shaft of the upper cylinder; a lower positioning plate corresponding to and cooperating with the upper positioning plate on the output shaft of the lower cylinder; a first positioning slot on the upper positioning plate; a set of corresponding second positioning slots on the lower positioning plate; and corresponding V-shaped clamping grooves on the upper and lower positioning plates.

[0011] The Luer connector clamping assembly includes a pair of longitudinally distributed first guide rails on the end cap frame. Each end of the first guide rail has a corresponding guide block. A Luer connector clamping plate is connected between the two guide blocks at the same end. One of the Luer connector clamping plates has a set of Luer connector slots that correspond to the Luer connector. The other Luer connector clamping plate has a claw that corresponds to the Luer connector. Each end cap frame at both ends of the first guide rail is provided with a lifting cylinder that corresponds to the Luer connector clamping plate on the same side.

[0012] The end cap flipping and tightening assembly includes: a pair of rotating mounting seats on a horizontal moving frame assembly; a rotating base plate between the two rotating mounting seats; a set of rotating motors on the rotating base plate; an end cap insertion part on the rotating shaft of the rotating motors; a rotating gear on one of the rotating mounting seats; a steering cylinder on the horizontal moving frame assembly; and a rack corresponding to the rotating gear at the output end of the steering cylinder.

[0013] Advantages of the utility model:

[0014] This utility model has a compact structure and is easy to use. It adopts a vibratory disc type end cap feeder for automatic feeding and works in conjunction with an end cap flipping and tightening assembly, which greatly improves production efficiency. The tightening force of the end cap can be adjusted, resulting in a better tightening effect. It solves the problem that the tightening force cannot be accurately controlled manually, and also reduces labor intensity, reduces labor costs, and improves enterprise efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 yes Figure 1 Enlarged view from direction A;

[0017] Figure 3 yes Figure 1 A schematic diagram showing the removal of one side plate, Luer connector clamping assembly, and pressure extension tube clamping assembly from the mid-end cover frame. Detailed Implementation

[0018] For ease of viewing, Figure 1 Remove the side panel on one side of the middle end cover frame 4.

[0019] like Figure 1-3 As shown, an automatic tightening device for pressure extension tube end caps includes an end cap frame 4 placed on a worktable, and a pair of end cap feeders 407 placed on a worktable on one side of the end cap frame 4. Each end cap feeder 407 has a feeding channel 407a extending towards the end cap frame 4. The end cap feeder 407 is a vibrating disc feeder, a type of existing technology, which will not be described in detail here.

[0020] An end cap translation and material handling assembly 401 is provided on the end cap frame 4. The end cap translation and material handling assembly 401 includes a pair of horizontal mounting plates 401a on the upper part of the end cap frame 4. Each horizontal mounting plate 401a is equipped with a guide slide rail 401b that is horizontally distributed along the length of the horizontal mounting plate 401a. Each guide slide rail 401b is equipped with a corresponding sliding block 401c.

[0021] A connecting horizontal plate 401d spans between two sliders 401c. A connecting vertical plate 401e is mounted on the connecting horizontal plate 401d. An end cap longitudinal cylinder 401g is mounted on the connecting vertical plate 401e. A second connecting horizontal plate 401h is located at the downward output end of the end cap longitudinal cylinder 401g. A set of end cap clamping cylinders 401j is mounted on the second connecting horizontal plate 401h. Each end cap clamping cylinder 401j has a pair of corresponding end cap grippers 401k. A translation output cylinder 401t, which forms a transmission engagement with the connecting horizontal plate 401d, is mounted on the end cap frame 4.

[0022] An end cap loading rack 402 is connected to the end cap frame 4 below the translational material handling assembly 401. The end cap loading rack 402 includes a plate 402a spanning between the two side plates of the end cap frame 4. A loading plate 402c is mounted on the plate 402a, and a set of feeding slots 402b corresponding to and communicating with the feeding channel 407a is provided on the loading plate 402c. The number of feeding slots 402b corresponds to the number of clamping cylinders 401j. A set of first sensors 402k corresponding to and cooperating with the feeding slots 402b is also installed on the plate 402a. When the first sensor 402k fails to detect an end cap entering the feeding slot 402b, it will send a signal to the corresponding clamping cylinder 401j, and the clamping cylinder 401j will not operate.

[0023] A horizontal moving frame assembly 403 is installed on the end cover frame 4. The horizontal moving frame assembly 403 includes a pair of moving frame slide rails 403a on the base plate of the end cover frame 4, and a frame 403b is connected across the corresponding slider on the two moving frame slide rails 403a.

[0024] A moving frame push cylinder 403c that corresponds to and cooperates with the moving frame slide rail 403a is installed on the end cover frame 4. A limiting block 403d that corresponds to and cooperates with the frame 403b is also provided on the bottom plate on one side of the moving frame slide rail 403a.

[0025] An end cap flipping and tightening assembly 406 is installed on the horizontal moving frame assembly 403. The end cap flipping and tightening assembly 406 includes: a pair of rotating mounting seats 406a installed inside the frame 403b of the horizontal moving frame assembly 403; a rotating base plate 406b is provided between the two rotating mounting seats 406a; a set of rotating motors 406c is provided on the rotating base plate 406b; an end cap insertion part 406d is provided on the rotating shaft of the rotating motors 406c; the insertion part 406d includes a columnar bottom with coaxially distributed guide rods thereon; the guide rods correspond to and cooperate with the center hole of the end cap so that the end cap can be fitted onto the guide rods.

[0026] A set of second sensors 403e, corresponding to the insertion part 406d, is installed on the rotating base plate 406b. When the rotating motor 406c starts working, the second sensor 403e detects that there is still an end cap on the corresponding insertion part 403d, and sends a signal to the corresponding clamping cylinder 401j. The clamping cylinder 401j at the corresponding position will not work in the next round, and the end cap gripper 401k will not pick up the material, thereby avoiding the collision caused by the overlap of the second picking and the previous picking.

[0027] A rotating gear 406e is provided on the outer wall of the side plate of frame 403b, and the rotating gear 406e is connected to one of the rotating mounting seats 406a via a rotating shaft. A steering cylinder 406g is installed on the outer wall of the side plate of frame 403b on one side of the rotating gear 406e. A rack 406h corresponding to the rotating gear 406e is provided at the output end of the steering cylinder 406g. The output of the steering cylinder 406g drives the rotating gear 406e to rotate, which in turn drives a set of rotary motors 406c on the rotating base plate 406b to rotate.

[0028] On the end cap frame 4 on one side of the limit block 403d, the Luer connector clamping assembly 405 and the pressure extension tube clamping assembly 404 are also installed in sequence.

[0029] The Luer connector clamping assembly 405 includes longitudinally distributed first guide rails 405a mounted on the inner sidewalls of the side plates on both sides of the end cover frame 4. Each first guide rail 405a has corresponding guide blocks 405b mounted at its upper and lower ends. A connecting plate spans between the two guide blocks 405b at the same end of each of the two first guide rails 405a. A Luer connector clamping plate 405c is connected to the connecting plate. A set of Luer connector slots 405d corresponding to the Luer connector is provided on the upper surface of the lower Luer connector clamping plate 405c. The position and number of Luer connector slots 405d correspond to the clamping cylinder 401j. A set of jaws 405g corresponding to a piece on the Luer connector is mounted on the lower surface of the upper Luer connector clamping plate 405c.

[0030] At the upper and lower ends of the first guide rail 405a, the end cover frame 4 is also equipped with a lifting cylinder 405h that corresponds to and cooperates with the Luer connector clamping plate 405c on the same side. The lifting cylinder 405h drives the two Luer connector clamping plates to close or separate to clamp or release the Luer connector.

[0031] The pressure extension tube clamping assembly 404 includes an upper cylinder 404a and a lower cylinder 404b symmetrically distributed on the end cap frame 4. An upper positioning plate 404c is mounted on the output shaft of the upper cylinder 404a, and a lower positioning plate 404d corresponding to and cooperating with the upper positioning plate 404c is mounted on the output shaft of the lower cylinder 404b.

[0032] The upper positioning plate 404c is thinner than the lower positioning plate 404d. The upper positioning plate 404c has a first positioning slot 404f, and the lower positioning plate 404d has two second positioning slots 404e that are offset from the first positioning slot 404f. This allows the upper positioning plate 404c to be inserted into the second positioning slots 404e. The upper positioning plate 404c and lower positioning plate 404d also have corresponding V-shaped clamping grooves 404g. When the upper positioning plate 404c is inserted into the second positioning slots 404e, the V-shaped clamping grooves 404g on the upper and lower positioning plates 404c close together, clamping the pressure extension tube inserted into the V-shaped clamping grooves 404g.

[0033] Work process:

[0034] First, the operator places the end cap into the vibrating feeding chamber of the end cap feeder 407, and then places the bonded product (the pressure extension tube with the Luer connector bonded) into it. The pressure extension tube is placed into the V-shaped clamping groove 404g of the lower positioning plate 404d, and the Luer connector is placed into the Luer connector slot 405d. Then, the Luer connector clamping assembly and the pressure extension tube clamping assembly 404 are activated to clamp the Luer connector and the pressure extension tube, and to clamp the product into a horizontal position.

[0035] End cap a enters the feed trough 402b through the feeding channel 407a via the vibration of the end cap feeder 407. Then, the clamping cylinder 401j outputs the end cap clamping claw 401k to clamp end cap a. Then, the translation output cylinder 401t outputs to push the connecting horizontal plate 401d forward, so that the end cap clamping cylinder 401j on the second connecting horizontal plate 401h moves forward to the appropriate position. Meanwhile, the output of the rear end cap longitudinal cylinder 401g drives the end cap clamping cylinder 401j to descend, which in turn causes the end cap clamping claw 401k to clamp end cap a and descend together, inserting end cap a into the end cap insertion part 403d.

[0036] Then, the translational material handling assembly 401 resets, and the rear end cap flipping and tightening assembly 406 operates, causing the rotating mounting base 403a to rotate 90 degrees, making the originally longitudinally distributed insertion parts 403d horizontally distributed. Next, the horizontal moving frame assembly 403 moves, causing the insertion parts 403d to move towards the Luer connector slot 405d until the end cap abuts against the Luer connector end face. Then, the rotary motor 403c tightens the end cap, and the horizontal moving frame assembly 403 and the end cap flipping and tightening assembly 406 reset. The pressure extension tube clamping assembly 404 and the Luer connector clamping assembly 405 open, and the worker removes the tightened product and it flows into the next process.

Claims

1. A device for automatically screwing on an end cap of a pressure extension pipe, characterized in that: It includes end cover rack (4), is equipped with end cover translation material taking assembly (401), end cover feeding frame (402), horizontal moving frame assembly (403), pressure extension pipe clamping assembly (404) and luer fitting clamping assembly (405) on end cover rack (4), is also equipped with end cover turnover screwing assembly (406) on horizontal moving frame assembly (403), is equipped with end cover feeding machine (407) corresponding with end cover feeding frame (402) on one side of end cover rack (4), is erected with feeding channel (407a) between end cover feeding machine (407) and end cover feeding frame (402).

2. The automatic screwing device for the end cover of the pressure extension pipe according to claim 1, characterized in that: The end cover translation material taking assembly (401) includes a pair of horizontal installation plates (401a) on the upper part of the end cover rack (4), a horizontally distributed guide rail (401b) is arranged on each horizontal installation plate (401a), a corresponding sliding block (401c) is arranged on the guide rail (401b), a connecting transverse plate (401d) is arranged between the two sliding blocks (401c), a connecting vertical plate (401e) is installed on the connecting transverse plate (401d), an end cover longitudinal cylinder (401g) is arranged on the connecting vertical plate (401e), a second connecting transverse plate (401h) is arranged on the output end of the end cover longitudinal cylinder (401g), a group of end cover clamping cylinders (401j) are arranged on the second connecting transverse plate (401h), a pair of corresponding end cover clamping jaws (401k) are arranged on each end cover clamping cylinder (401j), and a translation output cylinder (401t) corresponding to the connecting transverse plate (401d) is arranged on the end cover rack (4).

3. The automatic screwing device for the end cover of the pressure extension pipe according to claim 1, characterized in that: The end cover feeding frame (402) includes a plate body (402a), a feeding plate (402c) is arranged on the plate body (402a), and a group of feeding grooves (402b) corresponding to the feeding channel (407a) are arranged on the feeding plate (402c).

4. The automatic screwing device for the end cover of the pressure extension pipe according to claim 1, characterized in that: The horizontal moving frame assembly (403) includes a pair of moving frame sliding rails (403a) arranged on the bottom plate of the end cover rack (4), a frame (403b) is connected across the corresponding sliding blocks of the moving frame sliding rails (403a), a moving frame advancing cylinder (403c) corresponding to the moving frame sliding rails (403a) is arranged on the end cover rack (4), and a limiting block (403d) corresponding to the frame (403b) is further arranged on the bottom plate on one side of the moving frame sliding rails (403a).

5. The automatic screwing device for the end cover of the pressure extension pipe according to claim 1, characterized in that: The pressure extension pipe clamping assembly (404) comprises upper and lower symmetrical distribution of upper air cylinder (404a) and lower air cylinder (404b) on the end cover rack (4), the output shaft of the upper air cylinder (404a) is provided with an upper positioning plate (404c), the output shaft of the lower air cylinder (404b) is provided with a lower positioning plate (404d) corresponding to the upper positioning plate (404c), the upper positioning plate (404c) is provided with a first positioning slot (404f), the lower positioning plate (404d) is provided with a group of corresponding second positioning slots (404e), and the upper positioning plate (404c) and the lower positioning plate (404d) are further provided with corresponding V-shaped clamping grooves (404g).

6. 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The automatic screwing device for the end cover of the pressure extension pipe according to claim 1, characterized in that: ​

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