A pipelined processing apparatus for a tube

Abstract

A pipe assembly line processing device includes: a rotating roller with n axially extending grooves spaced circumferentially on its circumferential surface, the axis of the rotating roller being left-right; a sleeve fitted around the outer circumference of the rotating roller, having a peripheral wall extending around the circumferential surface of the rotating roller, a first opening extending axially at the top of the peripheral wall, and a second opening extending axially on the peripheral wall, the second opening being located at the front side of the peripheral wall; a driving mechanism for driving the rotating roller to rotate relative to the peripheral wall of the sleeve so that each groove can selectively correspond to either the first opening or the second opening; a threading unit disposed at the end corresponding to the first opening; a conveying unit, the output end of which is located above the first opening, for conveying the pipe to the first opening; and a cutting unit located outside the second opening, for receiving the pipe passing through the second opening and cutting the pipe. This invention enables automated processing of pipe cutting and threading, improving processing efficiency and ensuring processing quality.

Description

Technical Field

[0001] This utility model belongs to the field of pipe processing technology, specifically relating to a pipe assembly line processing device. Background Technology

[0002] The current processing of pipes such as instrument cable protection pipes (including air source pipes) is generally done manually with the help of cutting machines and threading machines, which results in high labor costs, low processing efficiency and inconsistent processing quality.

[0003] Therefore, it is necessary to develop a pipe assembly line processing device to automate the cutting and threading of pipes, thereby improving processing efficiency and ensuring processing quality. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a pipe assembly line processing device that can automatically process pipes by cutting and threading, thereby improving processing efficiency and ensuring processing quality, in light of the current state of the technology.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a pipe assembly line processing device, characterized in that it includes:

[0006] A rotating roller has n axially extending grooves spaced circumferentially on its circumferential surface for placing tubes therein, and the axial direction of the rotating roller is defined as the left-right direction, where n≥2;

[0007] A sleeve fitted around the outer periphery of a rotating roller has a peripheral wall extending around the peripheral surface of the rotating roller to cover the groove opening of the groove, and the top of the peripheral wall has a first opening extending axially for the passage of a pipe. The peripheral wall also has a second opening extending axially for the passage of a pipe, and the second opening is located on the front side of the peripheral wall.

[0008] A driving mechanism is used to drive the rotating roller to rotate relative to the peripheral wall of the sleeve so that each groove on the rotating roller can selectively correspond to the first opening or the second opening.

[0009] A threading unit is provided at the end corresponding to the first opening, and is used to process threads on the end of the pipe;

[0010] A conveying unit, the output end of which is located above the first opening, is used to convey the pipe to the first opening;

[0011] A cutting unit, located outside the second opening, is used to receive the pipe passing through the second opening and cut the pipe.

[0012] This invention features a sleeve with a first opening and a second opening, along with a rotating roller driven by a drive mechanism. This design allows the pipe conveyed by the conveying unit to enter the groove of the rotating roller through the first opening of the sleeve. A threading unit, positioned corresponding to the end of the first opening, can thread the end of the pipe within the groove. Furthermore, the rotation of the rotating roller rotates the pipe within the groove to the position of the second opening. After falling through the second opening, the pipe is received and cut by the cutting unit. This allows the assembly line processing device of this invention to automate the cutting and threading of pipes, improving processing efficiency and ensuring processing quality.

[0013] The threading unit of this utility model is designed with reference to the prior art. It can clamp the end of the pipe and process the thread on the end of the pipe.

[0014] Preferably, the cutting unit is located on the front side of the sleeve;

[0015] The sleeve has a first valve plate extending in a left-right direction at its second opening. The first valve plate extends forward and downward from the lower edge of the second opening to transport the pipe passing through the second opening to the cutting unit. The first valve plate can rotate upward to close the second opening. Thus, when the pipe needs to be cut, the second opening can be opened, allowing the pipe inside the second opening to roll down along the upper surface of the first valve plate to the cutting unit under its own weight.

[0016] Preferably, the cutting unit includes a support platform, a cutting frame arranged on the support platform along the left-right direction, and a fixing frame. The cutting frame and the fixing frame are respectively arranged to be movable in the left-right direction, and the fixing frame has a fixing cavity with an opening facing the front side of the first valve plate to receive the pipe coming down from the first valve plate and to partially constrain the pipe within the fixing cavity. The fixing cavity of the fixing frame can receive the pipe rolling down from the upper surface of the first valve plate and constrain the pipe within the fixing cavity, thereby facilitating the cutting frame to move left and right according to the required cutting position to cut the pipe.

[0017] To ensure stable constraint of the pipe, this invention includes at least two fixing brackets arranged on both sides of the cutting frame. Each fixing bracket can be equipped with a vertically movable fixing head (driven by an existing hydraulic cylinder or other telescopic power component). When the pipe enters the fixing cavity, the fixing head moves downwards to hold the pipe in place. After the pipe is cut, the fixing head moves upwards to release the constraint, allowing the pipe to exit the fixing cavity through the opening.

[0018] To allow for threading of the pipe end after cutting, the pipe can pass through the first valve plate and the second opening back into the groove of the rotating roller. Preferably, the first opening of the peripheral wall is provided with a tongue extending to the left and right, the tongue being located above the first valve plate and extending forward and upward from the front edge of the first opening.

[0019] The fixing frame is configured to move up and down, so that the opening of the fixing cavity can selectively correspond to the front side of the tongue or the front side of the first valve plate. In this invention, the cut tube can be moved upward by the fixing frame, and then rolled down along the upper surface of the tongue under its own weight into the first opening for threading, without the need to rotate the aforementioned rotating roller.

[0020] Furthermore, the fixing frame is provided with a telescopic component for pushing the tube inside the fixing cavity backward through the opening. This facilitates pushing the tube inside the fixing cavity out through the opening.

[0021] In the above scheme, the conveying unit can use an existing robotic arm, which clamps the pipe to be processed to the first opening.

[0022] Preferably, the conveying unit includes an inclined wall extending upward from front to back, the front side of which is located at the rear edge of the first opening, so that the tube can be conveyed along the upper surface of the inclined wall to the first opening.

[0023] Furthermore, it also includes a storage rack located below the inclined wall, and the storage rack has a storage cavity extending left and right for stacking tubes, and is provided with an ejection mechanism for pushing the tubes in the storage cavity upwards onto the inclined wall.

[0024] Furthermore, there are at least two storage cavities, arranged at intervals along the front-to-back direction;

[0025] The inclined wall is composed of at least two unit walls continuously arranged along the inclined direction, with each unit wall located at the upper port of its corresponding storage cavity. Under the action of the upward-pushing tube, the unit wall rotates upward to open the upper port of the storage cavity. The number of unit walls can be the same as the number of storage cavities, with each storage cavity having a unit wall at its upper port; alternatively, the storage cavity on the last side can be without a unit wall, while the other storage cavities have unit walls, so that the number of unit walls is less than the number of storage cavities.

[0026] Thus, this utility model, through the combination of inclined walls and storage racks, can both store pipes and facilitate their transportation.

[0027] To facilitate the upward ejection of the tube, the storage cavity is preferably open on both sides;

[0028] The ejection mechanism includes two ejector heads, located on the left and right sides of the storage rack respectively. Driven by a power source, these heads can move back and forth to correspond to a tube within one of the storage chambers. Simultaneously, the two ejector heads can move up and down under the same power source. The ejector heads can act on the bottommost tube, dragging the stacked tubes upwards as a whole until the topmost tube is ejected. Alternatively, they can act on the topmost tube, dragging a single tube upwards and ejecting it.

[0029] Preferably, the dimensions of each storage cavity are different in the front-to-back direction to store tubes with different outer diameters.

[0030] In the above-described scheme, preferably, it further includes a gripper head for gripping the pipe, positioned above the first opening, and capable of moving left and right and up and down under the drive of a power component. Thus, the gripper head can adjust the position of the pipe within the groove, and can also move the pipe from one groove to another.

[0031] To grip the tube, the gripper head can use a magnetic head to magnetically attract the tube. Alternatively, an existing openable gripper can be used.

[0032] At least one and at most n-1 grooves are provided with a push rod that can extend and retract to the left and right, which is used to constrain the tube in the groove between the end of the push rod and the threading unit.

[0033] Therefore, when the pipe to be threaded is short, a push rod can be used for restraint; when the pipe to be threaded is long, it can be placed in a groove without a push rod.

[0034] Preferably, three adjacent grooves in the circumferential direction are grouped together, and only one of the three grooves contains the aforementioned push rod. The groove without the push rod can be used to place a longer pipe to be processed, or to place a processed pipe, or leftover material after processing.

[0035] In order to collect the processed pipe and the remaining material, preferably, the bottom of the peripheral wall of the sleeve has an axially extending third opening for the pipe to pass through, and is provided with a second valve plate for opening and closing the third opening;

[0036] It also includes a storage tank located below the sleeve for receiving pipes coming down from the third opening.

[0037] By opening the third opening and rotating the groove containing the processed pipe or scrap to the third opening, the pipe can roll into the storage box under its own weight.

[0038] In the above embodiments, preferably, there are two sets of threading units, respectively arranged at the left and right ends of the first opening. This facilitates threading at both ends of the pipe.

[0039] Compared with the prior art, the advantages of this utility model are as follows: This utility model has a sleeve with a first opening and a second opening, as well as a rotating roller driven by a drive mechanism. This design allows the pipe conveyed by the conveying unit to enter the groove of the rotating roller through the first opening of the sleeve. The threading unit set at the end of the first opening can thread the end of the pipe in the groove. Furthermore, by rotating the rotating roller, the pipe in the groove can be rotated to the position of the second opening. After the pipe falls through the second opening, it is received by the cutting unit for cutting. Thus, the assembly line processing device of this utility model can perform automated processing of pipe cutting and threading, improving processing efficiency and ensuring processing quality. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0041] Figure 2 for Figure 1 Enlarged view of section A in the middle;

[0042] Figure 3 for Figure 1 Enlarged view of section B;

[0043] Figure 4 for Figure 1 Enlarged view of section C;

[0044] Figure 5 This is a structural schematic diagram from another perspective of an embodiment of the present utility model;

[0045] Figure 6 This is a cross-sectional view of a partial structure of an embodiment of the present utility model;

[0046] Figure 7 for Figure 6 Enlarged view of section D in the middle. Detailed Implementation

[0047] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0048] like Figures 1-7 As shown, this is a preferred embodiment of a pipe assembly line processing device of the present invention. The assembly line processing device includes a rotating roller 1, a sleeve 2, a drive mechanism, a threading unit 3, a conveying unit 4, a cutting unit 5, a storage rack 6, a gripper 7, and a storage box 8.

[0049] The axis of the rotating roller 1 is defined as the left-right direction. Multiple axially extending grooves 10 are provided circumferentially at intervals on the circumferential surface of the rotating roller 1 to accommodate the tube 9. In this embodiment, as... Figure 7As shown, three adjacent grooves 10 in the circumferential direction are grouped together, and there are five groups (or one, two or more groups). In each group, one of the three grooves 10 is provided with two top rods 100 arranged on the left and right and capable of extending and retracting left and right. The other two grooves are not provided with the aforementioned top rods 100.

[0050] like Figure 7 As shown, the sleeve 2 is fitted around the outer periphery of the rotating roller 1 and has a peripheral wall 20 extending around the circumferential surface of the rotating roller 1 to cover the opening of the groove 10. The top of the peripheral wall 20 has a first opening 21 extending axially for the passage of the pipe 9; the front side of the peripheral wall 20 has a second opening 22 extending axially for the passage of the pipe 9; and the bottom of the peripheral wall 20 of the sleeve 2 has a third opening 23 extending axially for the passage of the pipe 9. Meanwhile, a first valve plate 221 extending in the left-right direction is provided at the second opening 22 of the sleeve 2, and the first valve plate 221 extends forward and downward from the lower edge of the second opening 22, allowing the pipe output from the second opening 22 to slide down along the upper surface of the first valve plate 221. Furthermore, the first valve plate 221, driven by a first driving member 222 (a conventional hydraulic cylinder), can rotate upward around the lower edge of the second opening 22 to close the second opening 22. The peripheral wall 20 has a tongue 211 extending to the left and right at the first opening 21. The tongue 211 is located above the first valve plate 221 and extends forward and upward from the front edge of the first opening 21. The peripheral wall 20 has a second valve plate 231 for closing the third opening 23. The second valve plate 231 can rotate downward around the rear side of the third opening 23 under the drive of the second drive member 232 (which is a conventional hydraulic cylinder) to open the third opening 23.

[0051] like Figure 1 As shown, the gripper head 7 for gripping the tube 9 is located above the first opening 21 and can move left and right and up and down under the drive of the power component. Specifically, a left-right extending slide rail 71 is provided above the first opening 21. A telescopic power component 72 (such as a conventional hydraulic cylinder) for driving the gripper head 7 to move up and down is provided on the slide rail 71 and can move along the slide rail under the drive of the moving power component 73. Specifically, a transmission belt is provided on the slide rail 71 in the left-right direction. The moving power component is a conventional motor, and the motor shaft is connected to a transmission wheel. The transmission wheel cooperates with the transmission belt to drive the transmission belt to move left and right, thereby moving the telescopic power component 72, which is constrained to the transmission belt, left and right. The telescopic power component 72 and the moving power component 73 are the aforementioned power components. The gripper head 7 is a conventional magnetic component that grips the tube 9 by magnetic attraction, adjusting the position of the tube in the groove by moving the tube left and right, or moving the tube from one groove to another.

[0052] The driving mechanism is an existing motor, which drives the rotating roller 1 to rotate relative to the peripheral wall 20 of the sleeve 2 so that each groove 10 on the rotating roller 1 can selectively correspond to the first opening 21, the second opening 22 or the third opening 23.

[0053] like Figure 1 , 5 As shown in Figure 6, the storage box 8 is located below the sleeve 2 and is used to receive the pipe 9 coming down from the third opening 23. The storage box 8 has two spaces, front and back, and the storage box 8 can move back and forth, so that the pipe 9 coming down from the third opening 23 can selectively enter the front space or the rear space of the storage box 8.

[0054] like Figure 1 , 3 As shown, there are two sets of threading units 3, respectively arranged at both ends of the first opening 21, for machining threads on the end of the pipe 9. In this embodiment, the threading unit 3 is prior art, having a clamping device for clamping the end of the pipe and a threading device for machining threads on the end of the pipe; the specific details are not elaborated here.

[0055] like Figure 1 , 6 As shown, the output end of the conveying unit 4 is located above the first opening 21 and is used to convey the tube 9 to the first opening 21. Specifically, the conveying unit 4 includes an inclined wall 40 extending upward from front to back, with the front side of the inclined wall 40 located above the rear edge of the first opening 21, so that the tube 9 can be conveyed to the first opening 21 along the upper surface of the inclined wall 40. The storage rack 6 is located behind the sleeve 2 and below the inclined wall 40, and the storage rack 6 has storage cavities 60 extending left and right for stacking tubes 9. The tubes 9 in the storage cavities 60 can be pushed upward through the upper port of the storage cavity 60 under the action of the ejection mechanism 61. At the same time, there are multiple storage cavities 60, which are arranged at intervals in the front-back direction. The dimensions of each storage cavity 60 in the front-back direction are different to store tubes 9 with different outer diameters. The inclined wall 40 is composed of multiple unit walls 41 continuously arranged along the inclined direction, and each unit wall 41 is located at the upper port of its corresponding storage cavity 60. Under the action of the upward-push-out tube 9, the unit wall 41 can rotate upward to open the upper port of the storage cavity 60 (e.g., Figure 6 The uppermost unit wall 41 is in the upward-rotated state. After the tube 9 disengages from the upper port of the storage cavity 60, the unit wall 41 rotates downward to reset and close the upper port of the storage cavity 60. At the same time, the tube 9, which has disengaged from the upper port of the storage cavity 60, can roll down along the other unit walls 41 below the unit wall 41 to the first opening 21. In this embodiment, as shown... Figure 2As shown, each storage cavity 60 is open on the left and right, and the bottom of each storage cavity 60 is provided with a tray 62 that extends left and right and can move up and down along the storage cavity 60. Tubes 9 of the same diameter are stacked on their respective trays 62. The ejection mechanism 61 includes two ejection heads 611, which are located on the left and right sides of the storage rack 6, respectively. Driven by the power source, they can move back and forth to correspond to the tray 62 in one of the storage cavities 60. At the same time, the two ejection heads 611 can move up and down under the drive of the power source, thereby driving the tray 62 to move up and down, and then driving the tubes 9 on the tray 62 to move up and down.

[0056] The cutting unit 5 is located on the front side of the sleeve 2. It is used to receive the tube 9 that rolls down along the first valve plate 221 through the second opening 22 and cut the tube 9. At the same time, it can transport the cut tube to the tongue plate 211, so that the tube can slide down along the tongue plate to the first opening of the sleeve 2 and return to the groove of the rotating roller 2.

[0057] Specifically, such as Figure 1 , 4 As shown in Figure 6, the cutting unit 5 includes a support platform 51 extending left and right, a cutting frame 52 arranged on the support platform 51 in a left-right direction and adjustable in position by moving left and right, and four fixing frames 53, arranged in pairs on the left and right sides of the cutting frame 52. Each fixing frame 53 has a fixing cavity 530 with an opening facing the front side of the first valve plate 221 to receive the pipe 9 coming down from the first valve plate 221. Each fixing frame 53 is also equipped with a fixing head 532 that can move up and down (the fixing head 532 is driven by a hydraulic cylinder, electric cylinder, etc.). When a portion of the pipe enters the fixing cavity 530, the fixing head 532 moves downward to press against the pipe 9, thus partially constraining the pipe 9 within the fixing cavity 530. After the pipe 9 is cut, the fixing head 532 moves upward to release the constraint on the pipe, at which point the pipe can leave the fixing cavity 530 through the opening. Furthermore, to better constrain the pipe 9, the bottom of the fixing cavity 530 is V-shaped and located below the fixing head 532, allowing for multi-point fixing of the pipe. Simultaneously, the fixing frame 53 is equipped with a telescopic member 531 (such as a hydraulic cylinder or electric cylinder) for pushing the pipe 9 within the fixing cavity 530 backward through the opening. In this embodiment, the fixing frame 53 is configured to move vertically, allowing the opening of the fixing cavity 530 to selectively correspond to either the front side of the tongue 211 or the front side of the first valve plate 221. When the opening of the fixing cavity 530 corresponds to the front side of the first valve plate 221, it can receive the pipe rolling off the first valve plate 221; when the opening of the fixing cavity 530 corresponds to the front side of the tongue 211, the telescopic member 531 pushes the pipe within the fixing cavity 530 onto the tongue 211.

[0058] In this embodiment, each fixed frame 53 is constrained to the left and right extending slide grooves 510 of the support platform 51 by its respective hydraulic cylinder or other telescopic components. The slide grooves 510 are equipped with racks 511 that extend left and right. The outer shell of the telescopic component is equipped with a gear 512 driven by a motor. The gear 512 meshes with the rack 511, thereby enabling the motor rotation to drive the telescopic component and the fixed frame 53 to move left and right as a whole. The telescopic component's extension and retraction can drive the fixed frame 53 to move up and down. Please refer to [link to details] for further information. Figure 6 .

[0059] like Figure 4 As shown, the cutting frame 52 in this embodiment is equipped with an electric roller support 521 (two rollers are arranged one in front of the other and extend to the left and right to support the pipe above between them) and a blade 522 located above the electric roller support 521 and capable of moving up and down under the drive of a hydraulic cylinder. The cooperation between the blade 522 and the electric roller support 521 enables the cutting of the pipe constrained on the fixed frame 53.

[0060] The processing steps of the assembly line processing device in this embodiment are as follows:

[0061] 1. The conveying unit 4 conveys the tube 9 to be processed through the first opening 21 of the sleeve 2 to one of the grooves 10 of the rotating roller 1, and the threading unit 3 on one side of the first opening 21 performs threading processing on one end of the tube.

[0062] 2. After the threading process is completed, the drive mechanism drives the rotating roller 1 to rotate, so that the tube rotates together with the rotating roller 1 to the second opening 22 of the sleeve 2. Under its own gravity, the tube leaves the second opening 22 and is received by the cutting unit 5.

[0063] 3. The cutting unit 5 cuts the tube. The tube with the threaded end after cutting is conveyed to the tongue 211 by the fixing frame 53 in the cutting unit 5. Under the action of its own gravity, the tube rolls down along the upper surface of the tongue 211 to the first opening 21 of the sleeve 2, and then returns to the groove of the rotating roller 1 (at this time, if the cut tube is short, it can enter the groove 10 with the push rod 100 and be located between the end of the push rod 100 and the threading unit 3 on the other side of the first opening 21 under the action of the gripper 7), thus completing the threading process of the other end of the tube.

[0064] 4. The drive mechanism drives the rotating roller 1 to rotate, so that the tube that has been cut and threaded rotates together with the rotating roller 1 to the third opening 23 of the sleeve 2. Under its own gravity, the tube leaves the third opening 23 and is received by the storage box 8.

[0065] In addition to the above processing methods, the processing steps of the assembly line processing device in this embodiment can also be:

[0066] 1. The conveying unit 4 conveys the tube 9 to be processed through the first opening 21 of the sleeve 2 into one of the grooves 10 of the rotating roller 1;

[0067] 2. The drive mechanism drives the rotating roller 1 to rotate, so that the tube rotates together with the rotating roller 1 to the second opening 22 of the sleeve 2. Under its own gravity, the tube leaves the second opening 22 and is received by the cutting unit 5.

[0068] 3. The cutting unit 5 cuts the tube. The cut tube is conveyed to the tongue 211 by the fixed frame 53 in the cutting unit 5. Under the action of its own gravity, the tube rolls down along the upper surface of the tongue 211 to the first opening 21 of the sleeve 2, and then returns to the groove of the rotating roller 1.

[0069] 4. Thread the ends of the tubes within the groove;

[0070] 5. The drive mechanism drives the rotating roller 1 to rotate, so that the tube that has been cut and threaded rotates together with the rotating roller 1 to the third opening 23 of the sleeve 2. Under its own gravity, the tube leaves the third opening 23 and is received by the storage box 8.

[0071] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A pipelining apparatus for processing a tube, characterized by Including: A rotating roller (1) has n axially extending grooves (10) spaced circumferentially on its circumferential surface for placing a tube (9) therein, and the axial direction of the rotating roller (1) is defined as the left-right direction, and n≥2; The sleeve (2) fitted around the outer periphery of the rotating roller (1) has a peripheral wall (20) extending around the peripheral surface of the rotating roller (1) to cover the groove opening of the groove (10), and the top of the peripheral wall (20) has a first opening (21) extending axially for the passage of the tube (9), and the peripheral wall (20) also has a second opening (22) extending axially for the passage of the tube (9), and the second opening (22) is located on the front side of the peripheral wall (20); A driving mechanism is used to drive the rotating roller (1) to rotate relative to the peripheral wall (20) of the sleeve (2) so that each groove (10) on the rotating roller (1) can selectively correspond to the first opening (21) or the second opening (22); The threading unit (3) is provided at the end of the first opening (21) and is used to process threads on the end of the tube (9); The conveying unit (4) has its output end located above the first opening (21) and is used to convey the pipe (9) to the first opening (21); The cutting unit (5), located outside the second opening (22), is used to receive the pipe (9) passing through the second opening (22) and cut the pipe (9).

2. The assembly line processing device according to claim 1, characterized in that: The cutting unit (5) is located on the front side of the sleeve (2); The sleeve (2) has a first valve plate (221) extending in the left-right direction at the second opening (22), and the first valve plate (221) extends forward and downward from the lower edge of the second opening (22) to transport the pipe (9) passing through the second opening (22) to the cutting unit (5). The first valve plate (221) can rotate upward to close the second opening (22).

3. The assembly line processing device according to claim 2, characterized in that: The cutting unit (5) includes a support platform (51), a cutting frame (52) arranged on the support platform (51) along the left and right direction, and a fixing frame (53). The cutting frame (52) and the fixing frame (53) are respectively arranged in a manner that can move along the left and right direction, and the fixing frame (53) has a fixing cavity (530) with an opening facing the front side of the first valve plate (221) to receive the tube (9) coming down from the first valve plate (221) and to partially constrain the tube (9) within the fixing cavity (530).

4. The assembly line processing device according to claim 3, characterized in that: The peripheral wall (20) has a tongue (211) extending to the left and right at the first opening (21). The tongue (211) is located above the first valve plate (221) and extends forward and upward from the front edge of the first opening (21). The fixing frame (53) is arranged to move up and down so that the opening of the fixing cavity (530) can be selectively aligned with the front side of the tongue (211) or the front side of the first valve plate (221).

5. The assembly line processing device according to claim 4, characterized in that: The fixing frame (53) is provided with a telescopic component (531) for pushing the tube (9) in the fixing cavity (530) backward through the opening.

6. The assembly line processing apparatus according to claim 1, characterized in that: The conveying unit (4) includes an inclined wall (40) extending upward from front to back, with the front side of the inclined wall (40) located at the rear edge of the first opening (21) so that the tube (9) can be conveyed along the upper surface of the inclined wall (40) to the first opening (21).

7. The assembly line processing apparatus according to claim 6, characterized in that: It also includes a storage rack (6) located below the inclined wall (40), and the storage rack (6) has a storage cavity (60) extending left and right for stacking tubes (9) vertically, and is provided with an ejection mechanism (61) for ejecting the tubes (9) in the storage cavity (60) upward onto the inclined wall (40).

8. The assembly line processing apparatus according to claim 7, characterized in that: There are at least two storage cavities (60), which are arranged at intervals along the front-back direction; The inclined wall (40) is formed by at least two unit walls (41) arranged continuously along the inclined direction, and each unit wall (41) is located at the upper port of its corresponding storage cavity (60). Under the action of the upward-pushing tube (9), the unit wall (41) rotates upward to open the upper port of the storage cavity (60).

9. The assembly line processing apparatus according to claim 8, characterized in that: The storage cavity (60) is open on both sides; The ejection mechanism (61) includes two ejection heads (611), which are located on the left and right sides of the storage rack (6) respectively. Driven by the power source, they can move back and forth to correspond to the tube (9) in one of the storage cavities (60). At the same time, the two ejection heads (611) can move up and down under the drive of the power source.

10. The assembly line processing apparatus according to claim 8, characterized in that: Each storage chamber (60) has different dimensions in the front and back directions to store tubes (9) with different outer diameters.

11. The assembly line processing apparatus according to claim 1, characterized in that: It also includes a gripper (7) for gripping the tube (9), located above the first opening (21), and capable of moving left and right and up and down under the drive of the power unit.

12. The assembly line processing apparatus according to claim 11, characterized in that: At least one of the grooves (10) and at most n-1 grooves (10) are provided with a push rod (100) that can extend and retract to the left and right, for constraining the tube (9) in the groove (10) between the end of the push rod (100) and the threading unit (3).

13. The assembly line processing apparatus according to claim 12, characterized in that: Three adjacent grooves (10) in the circumferential direction are grouped together, and only one of the three grooves (10) is provided with the aforementioned top rod (100).

14. The assembly line processing apparatus according to any one of claims 1 to 13, characterized in that: The bottom of the peripheral wall (20) of the sleeve (2) has an axially extending third opening (23) for the pipe (9) to pass through, and is provided with a second valve plate (231) for opening and closing the third opening (23); It also includes a storage box (8) located below the sleeve (2) for receiving the pipe (9) coming down from the third opening (23).

15. The assembly line processing apparatus according to any one of claims 1 to 13, characterized in that: There are two sets of threading units (3), which are respectively set at the left and right ends of the first opening (21).

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