An automatic assembly equipment for dispensing cylinders

Abstract

This invention discloses an automatic assembly equipment for delivery cylinders, comprising a circulation mechanism, a feeding mechanism, an automatic sealing ring assembly mechanism, an automatic buoy and push rod assembly mechanism, an automatic end cap assembly mechanism, and an automatic rotating inkjet printing mechanism for the outer shell cylinder, all mounted on a frame. These components work together to automate the final assembly process of the delivery cylinders. The circulation mechanism includes a double-speed chain and a carrier plate, which work together to automatically circulate and fix the outer shell cylinders. The feeding mechanism includes mechanical grippers and an outer shell cylinder storage tank, which work together to store and automatically feed the outer shell cylinders. This automatic assembly equipment automates the final assembly process of the outer shell cylinders, improving the production efficiency of buoys.

Description

Technical Field

[0001] This invention relates to the field of buoy assembly technology, specifically to an automatic assembly device for a launch tube. Background Technology

[0002] The assembly of the delivery cylinder is a process in which quick-connect sockets, sealing rings, floats, push rods, and end caps are sequentially assembled into the outer casing, and then production information is printed on the surface of the outer casing.

[0003] The existing assembly process for the outer shell involves manual assembly with tooling, requiring repeated handling during the process, which is not only time-consuming and labor-intensive but also significantly increases the workload of operators. Inconsistency is also lacking in the assembly of internal components. Furthermore, the installation of sealing rings, buoy and push rod assemblies, and end caps are all done manually, resulting in low efficiency and poor product consistency.

[0004] In addition, the current labeling of production information for the outer casing is done by hand using an oil-based pen, which not only makes the handwriting easy to become blurred but also results in a lack of consistency. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an automatic assembly equipment for launching cylinders, which can realize the automated assembly of the outer shell cylinder and improve the production efficiency of buoys.

[0006] The technical solution of this invention is to provide an automatic assembly equipment for dispensing cylinders, including a transfer mechanism, a feeding mechanism, an automatic sealing ring assembly mechanism, an automatic buoy and push rod assembly mechanism, an automatic end cap assembly mechanism, and an automatic rotating inkjet printing mechanism for the outer shell cylinder, all mounted on a frame. These components work together to achieve the final assembly process of the dispensing cylinders.

[0007] The transfer mechanism includes a double-speed chain and a carrier plate, which work together to complete the automatic transfer and fixation of the outer shell cylinder;

[0008] The feeding mechanism includes mechanical grippers and outer shell cylinder storage tank. The mechanical grippers and outer shell cylinder storage tank work together to complete the storage and automatic feeding of outer shell cylinders.

[0009] The automatic sealing ring assembly mechanism includes an automatic sealing ring assembly positioning mechanism and a pushing mechanism. The transfer mechanism and the automatic sealing ring assembly mechanism work together to achieve the fixing of the outer shell and the automatic assembly of the sealing ring.

[0010] The automatic assembly mechanism for buoys and push rods includes an automatic assembly and positioning mechanism for buoys and push rods, a buoy pushing mechanism, and a shell clamping mechanism. The transfer mechanism works in conjunction with the automatic assembly mechanism for buoys and push rods to achieve the fixing of the shell cylinder and the assembly of the buoy and push rod components.

[0011] The automatic end cap assembly mechanism includes an automatic end cap assembly positioning mechanism, an end cap pushing mechanism, and a rear pushing mechanism. The transfer mechanism works in conjunction with the automatic end cap assembly mechanism to fix the outer shell and assemble the end cap.

[0012] The automatic rotary inkjet printing mechanism for the outer casing includes a rotation mechanism and a printing mechanism. The transfer mechanism works in conjunction with the automatic rotary inkjet printing mechanism for the outer casing to achieve automatic rotation, positioning and printing of the outer casing.

[0013] This invention enables automated assembly of the outer shell tube, improving buoy production efficiency. Specifically, the speed-multiplying chain and carrier plate of the transfer mechanism work together to automatically transfer and fix the outer shell tube; the mechanical grippers and outer shell tube storage trough of the feeding mechanism work together to store and automatically feed the outer shell tubes; the automatic assembly positioning mechanism and pushing mechanism of the sealing ring automatic assembly mechanism work together to fix the outer shell tube and automatically assemble the sealing ring; the buoy and push rod automatic assembly mechanism, consisting of a buoy and push rod automatic assembly positioning mechanism, a push rod mechanism, and a top plate mechanism, works together to automatically install the buoy and push rod components, improving production efficiency; and the end cap automatic assembly mechanism, consisting of an end cap automatic assembly positioning mechanism, an end cap pushing mechanism, and a rear pushing mechanism, works together to automatically assemble the end cap, improving production efficiency. The sealing ring automatic assembly mechanism, composed of a cylinder and a clamp, and the automatic rotating inkjet printing mechanism for the outer shell tube, implemented by a rotating mechanism in conjunction with an inkjet printer, are both conventional techniques and will not be elaborated upon.

[0014] Preferably, the carrier plate is provided with three supporting mechanisms (front, middle, and rear) and two clamping mechanisms (front and rear), which cooperate with each other to fix the outer shell. The three supporting mechanisms each include a positioning block with a V-shaped groove on the upper surface, and the outer shell is placed in the V-shaped groove. The two clamping mechanisms are each composed of a claw assembly consisting of two opposing L-shaped bends, and the two opposing L-shaped bends of the clamping mechanism slide in cooperation with the carrier plate.

[0015] Preferably, the clamping parts of the V-shaped groove and the L-shaped bend are equipped with anti-slip pads.

[0016] Preferably, the automatic assembly and positioning mechanism for the buoy and push rod includes an upper positioning mechanism and a lower positioning mechanism that cooperate with each other. The upper positioning mechanism includes a positioning component and a telescopic mechanism connected thereto. The telescopic mechanism is located above the positioning component and is used to drive the positioning component to move up and down. The lower positioning mechanism includes a lower positioning block and a moving mechanism connected thereto. The lower positioning block is recessed with a groove that is adapted to the outer shell. Both the telescopic mechanism and the moving mechanism are cylinders.

[0017] Preferably, the buoy pushing mechanism includes a buoy pushing power mechanism, a connecting mechanism, and a pushing mechanism; the buoy pushing power mechanism transmits power to the push rod assembly and the buoy through the connecting mechanism and the pushing mechanism, thereby realizing the assembly of the buoy and the push rod assembly.

[0018] Preferably, the outer shell cylinder clamping mechanism includes a top plate mechanism and a clamping power mechanism. The top plate mechanism is driven by the clamping power mechanism, and the power of the clamping power mechanism is transmitted to the outer shell cylinder through the top plate mechanism, which counteracts the force of the buoy pushing mechanism pushing the buoy and push rod assembly, so that the outer shell cylinder remains stationary when the buoy and push rod assembly are assembled.

[0019] Preferably, the automatic end cap assembly and positioning mechanism includes an upper positioning mechanism one and an upper positioning mechanism two, wherein...

[0020] The upper positioning mechanism includes a positioning block and a drive cylinder connected thereto. The lower end face of the positioning block is V-shaped and is located directly above the end cap assembly position. The drive cylinder is located above the positioning block and is used to drive the positioning block to move up and down.

[0021] The second upper positioning mechanism includes an elbow clamp, a fixed plate, a spring mechanism, a connecting rod, and a connecting plate. The second upper positioning mechanism is fixed to the frame via the connecting plate, the elbow clamp is fixed to the connecting plate, the elbow clamp push rod is connected to the upper end of the vertically set fixed plate via the connecting rod, and the back of the fixed plate is also connected to the connecting plate via the spring mechanism so that after the assembly work is completed, the elbow clamp can be pulled down so that the spring mechanism can drive the fixed plate to rise to the initial position.

[0022] Preferably, the end cap pushing mechanism includes an end cap push plate and a front power cylinder for driving the end cap push plate to move back and forth. The end cap push plate includes a circular push plate with protrusions that fit against the inner surface of the end cap.

[0023] Preferably, the rear pushing mechanism and the end cover pushing mechanism are spaced apart. The rear pushing mechanism includes a rear top plate and a rear power cylinder. The rear top plate is driven by the rear power cylinder to move back and forth. The rear top plate is a U-shaped stainless steel plate.

[0024] Furthermore, the connecting plate is a rectangular stainless steel plate, fixed directly above the end cover mounting position. One side is fixed to the frame, and the other side is fitted with the elbow clamp and the slide rail of the fixing plate. Correspondingly, the fixing plate has a groove that mates with the slide rail.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] This invention utilizes a carrier plate and a speed-multiplying chain structure to rapidly transfer the outer shell cylinder to the target workstation and quickly stop it at the working position, thereby reducing the intensity of manual labor and improving production efficiency. The buoy assembly mechanism automates the installation of the buoy and push rod components, reducing labor intensity and increasing production efficiency. The end cap assembly mechanism positions the end cap and automatically assembles it into the outer shell cylinder, further improving production efficiency. The automatic sealing ring pushing mechanism performs functions such as fixing the outer shell cylinder, assembling the sealing ring, and controlling its position, reducing manual labor intensity. Finally, the automatic rotation and printing mechanism of the outer shell cylinder enables automatic rotation, positioning, and printing of the outer shell cylinder during buoy assembly. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the carrier plate of the transfer mechanism of the present invention;

[0029] Figure 3 This is a schematic diagram of the automatic assembly mechanism for the buoy and push rod of the present invention;

[0030] Figure 4 This is a schematic diagram of the upper positioning mechanism of the automatic assembly mechanism for the buoy and push rod of the present invention;

[0031] Figure 5 This is a schematic diagram of the buoy pushing mechanism of the automatic buoy and push rod assembly mechanism of the present invention;

[0032] Figure 6 This is a schematic diagram of the outer shell cylinder clamping mechanism of the automatic assembly mechanism for buoys and push rods of the present invention.

[0033] Figure 7 This is a schematic diagram of the automatic end cap assembly mechanism of the present invention;

[0034] Figure 8 This is a schematic diagram of the upper positioning mechanism of the automatic end cap assembly mechanism of the present invention;

[0035] Figure 9 This is a schematic diagram of the upper positioning mechanism 2 of the automatic end cap assembly mechanism of the present invention;

[0036] Figure 10 This is a schematic diagram of the end cap pushing mechanism of the automatic end cap assembly mechanism of the present invention;

[0037] Figure 11 This is a schematic diagram of the rear pushing mechanism of the automatic end cap assembly mechanism of the present invention.

[0038] In the diagram: 1. Transfer mechanism; 11. Speed-up chain; 12. Carrier plate; 2. Feeding mechanism; 21. Mechanical gripper; 22. Outer shell cylinder storage tank; 3. Automatic sealing ring assembly mechanism; 31. Automatic sealing ring assembly and positioning mechanism; 32. Pushing mechanism; 4. Automatic buoy and push rod assembly mechanism; 41. Automatic buoy and push rod assembly and positioning mechanism; 42. Buoy pushing mechanism; 43. Outer shell cylinder clamping mechanism; 5. Automatic end cap assembly mechanism; 51. Automatic end cap assembly and positioning mechanism; 52. End cap pushing mechanism; 53. Rear pushing mechanism; 6. Automatic rotating inkjet printing mechanism for outer shell cylinder; 61. Rotating mechanism; 62. Printing mechanism; 120. Supporting mechanism; 121. Clamping mechanism; 125. Positioning hole; 126, L-shaped bend; 127, anti-slip pad; 128, slide rail; 401, positioning component; 402, telescopic mechanism; 410, upper positioning mechanism; 411, lower positioning mechanism; 421, buoy pushing power mechanism; 422, connecting mechanism; 423, pushing mechanism; 431, top plate mechanism; 432, tightening power mechanism; 55, upper positioning mechanism one; 56, upper positioning mechanism two; 521, end cover push plate; 522, front power cylinder; 531, rear top plate; 532, rear power cylinder; 551, positioning block; 552, drive cylinder; 561, elbow clamp; 562, fixing plate; 563, elastic mechanism; 564, connecting rod; 565, connecting plate. Detailed Implementation

[0039] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0040] Reference Figure 1-11 This invention discloses an automatic assembly device for dispensing cylinders, comprising a transfer mechanism 1, a feeding mechanism 2, an automatic sealing ring assembly mechanism 3, an automatic buoy and push rod assembly mechanism 4, an automatic end cap assembly mechanism 5, and an automatic rotating inkjet printing mechanism 6 for the outer shell cylinder, all mounted on a frame. These components work together to complete the final assembly process of the dispensing cylinders.

[0041] in,

[0042] The transfer mechanism 1 includes a double-speed chain 11 and a carrier plate 12. The double-speed chain 11 and the carrier plate 12 cooperate with each other to complete the automatic transfer and fixation of the outer shell cylinder.

[0043] The feeding mechanism 2 includes a mechanical gripper 21 and an outer shell cylinder storage tank 22. The mechanical gripper 21 and the outer shell cylinder storage tank 22 cooperate with each other to complete the storage and automatic feeding of the outer shell cylinder.

[0044] The automatic sealing ring assembly mechanism 3 includes an automatic sealing ring assembly positioning mechanism 31 and a pushing mechanism 32. The transfer mechanism 1 and the automatic sealing ring assembly mechanism 3 work together to achieve the fixing of the outer shell and the automatic assembly of the sealing ring.

[0045] The automatic assembly mechanism 4 for buoys and push rods includes an automatic assembly and positioning mechanism 41 for buoys and push rods, a buoy pushing mechanism 42, and a shell cylinder clamping mechanism 43. The transfer mechanism 1 works in conjunction with the automatic assembly mechanism 4 for buoys and push rods to achieve the fixing of the shell cylinder and the assembly of the buoys and push rod components.

[0046] The automatic end cap assembly mechanism 5 includes an automatic end cap assembly positioning mechanism 51, an end cap pushing mechanism 52, and a rear pushing mechanism 53. The transfer mechanism 1 works in conjunction with the automatic end cap assembly mechanism 5 to fix the outer shell and assemble the end cap.

[0047] The automatic rotating inkjet printing mechanism 6 for the outer casing includes a rotating mechanism 61 and a printing mechanism 62. The transfer mechanism 1 works in conjunction with the automatic rotating inkjet printing mechanism 6 for the outer casing to achieve automatic rotation, positioning and printing of the outer casing.

[0048] In one embodiment, the carrier plate 12 is provided with three supporting mechanisms 120 (front, middle, and rear) and two clamping mechanisms 121 (front and rear), which cooperate to fix the outer shell cylinder. Each of the three supporting mechanisms 120 includes a positioning block 125 with a V-shaped groove on its upper surface, into which the outer shell cylinder is placed. Each of the two clamping mechanisms 121 consists of a gripper assembly composed of two opposing L-shaped bends 126, which slide in engagement with the carrier plate 12. The clamping mechanism also includes a pair of slide rails 128 fixed to the moving mechanism and arranged opposite each other. The slide rails 128 slide in engagement with their corresponding grippers, and a return spring is provided at the end of the pair of slide rails 128 that is close to each other. Three supporting mechanisms 120 and two clamping mechanisms 121 are arranged side by side. The supporting mechanism 120 is provided with a groove for placing the outer shell cylinder. In this embodiment, the supporting mechanism 120 includes a front supporting mechanism, a middle supporting mechanism, and a rear supporting mechanism. Each supporting mechanism 120 is provided with an anti-slip pad 127 in its groove. The clamping mechanism 121 cooperates with the supporting mechanism 120 to clamp the outer shell cylinder placed on the supporting mechanism 120. In this embodiment, the clamping mechanism 121 has two clamping mechanisms, a front clamping mechanism and a rear clamping mechanism. The front clamping mechanism is located between the front support mechanism and the middle support mechanism, and the rear clamping mechanism is located between the middle support mechanism and the rear support mechanism. Similarly, in order to ensure that the outer shell cylinder does not move relative to the machine body when assembling the sealing ring, and to counteract the tendency of the outer shell cylinder to remain relatively stationary with respect to the parts or components being assembled when assembling the sealing ring, float, or push rod assembly, anti-slip pads 127 are respectively provided on the jaws of the two clamping mechanisms. The anti-slip pads can be fixed by various known fixing methods.

[0049] In one implementation, the automatic assembly and positioning mechanism 41 for the buoy and push rod includes an upper positioning mechanism 410 and a lower positioning mechanism that cooperate with each other. The upper positioning mechanism 410 includes a positioning element 401 and a telescopic mechanism 402 connected thereto. The telescopic mechanism 402 is located above the positioning element 401 and is used to drive the positioning element 401 to move up and down. The lower positioning mechanism includes a lower positioning block and a moving mechanism connected thereto. The lower positioning block has a recessed groove adapted to the outer shell. Both the telescopic mechanism 402 and the moving mechanism are cylinders. This constrains the attitude of the outer shell in both the horizontal and vertical directions, ensuring that the outer shell remains fixed within a certain range and preventing the buoy from being misaligned due to rotation or displacement of the outer shell during buoy assembly. The upper and lower positioning mechanisms are respectively arranged directly above and below the assembly position of the outer shell.

[0050] In one implementation, the buoy pushing mechanism 42 includes a buoy pushing power mechanism 421, a connecting mechanism 422, and a pushing mechanism 423. The buoy pushing power mechanism 421 transmits power to the push rod assembly and the buoy through the connecting mechanism 422 and the pushing mechanism 423, thereby assembling the buoy and the push rod assembly. The connecting mechanism 422 is a horizontally placed rectangular stainless steel plate. The connecting mechanism 422 is used to connect the buoy pushing power mechanism 421 and the pushing mechanism 423, so as to transmit the power provided by the buoy pushing power mechanism 421 to the pushing mechanism 423. The pushing mechanism 423 includes a vertically placed stainless steel block and a fixing rod behind it for connecting with the connecting mechanism 422, for pushing the buoy and the push rod assembly into the installation position of the outer shell cylinder.

[0051] In one embodiment, the outer shell clamping mechanism 43 includes a top plate mechanism 431 and a clamping power mechanism 432. The top plate mechanism 431 is driven by the clamping power mechanism 432, and the power of the clamping power mechanism 432 is transmitted to the outer shell through the top plate mechanism 431, counteracting the force of the buoy pushing mechanism 42 pushing the buoy and push rod assembly, so that the outer shell remains stationary when assembling the buoy and push rod assembly. The top plate mechanism 431 consists of a stainless steel plate and a push rod, and is used to push the buoy and push rod assembly into the installation position of the outer shell. The stainless steel plate is connected to the clamping power mechanism 432 through the push rod. The upper surface of the stainless steel plate has an arc-shaped groove that matches the air nozzle on the end face of the outer shell. The clamping power mechanism 431 is a guide rail type rodless cylinder, which is powered by compressed air pushing the piston.

[0052] As one implementation, the end cap automatic assembly and positioning mechanism 51 includes an upper positioning mechanism one 55 and an upper positioning mechanism two 56, wherein,

[0053] The upper positioning mechanism 55 includes a positioning block 551 and a drive cylinder 552 connected thereto. The lower end face of the positioning block 551 is V-shaped and is located directly above the end cap assembly position. The drive cylinder 552 is located above the positioning block 551 and is used to drive the positioning block to move up and down. Its function is to move the fixing part in the vertical direction to realize the switching between the fixed and moving states of the buoy outer shell.

[0054] The second upper positioning mechanism 56 includes an elbow clamp 561, a fixed plate 562, a spring mechanism 563, a connecting rod 564, and a connecting plate 565. The second upper positioning mechanism 56 is fixed to the frame via the connecting plate 565. The elbow clamp 561 is fixed to the connecting plate 565. The elbow clamp push rod is connected to the upper end of the vertically set fixed plate 562 via the connecting rod 564. The back of the fixed plate 562 is also connected to the connecting plate 565 via the spring mechanism 563 so that after the assembly work is completed, the elbow clamp 561 can be pulled down so that the spring mechanism 563 can drive the fixed plate 562 to rise to the initial position.

[0055] In this embodiment, the end cap pushing mechanism 52 includes an end cap push plate 521 and a front power cylinder 522 for driving the end cap push plate 521 to move back and forth. The end cap push plate 521 includes a circular push plate with protrusions that fit against the inner surface of the end cap, so that the end cap can be attached to the end cap push plate for easy subsequent assembly.

[0056] The rear pushing mechanism 53 and the end cap pushing mechanism 52 are spaced apart. The rear pushing mechanism 53 includes a rear top plate 531 and a rear power cylinder 532. The rear top plate 531 is driven by the rear power cylinder 532 to move back and forth. The rear top plate 531 is a U-shaped stainless steel plate. The U-shaped groove is adapted to the wall thickness of the outer shell cylinder, and the opening of the buoy outer shell cylinder can be locked in the groove. Its function is to push the outer shell cylinder in the opposite direction when installing the end cap, so that the end cap can be installed in place.

[0057] The positioning of the buoy outer shell and the assembly of the end cap are completed through the cooperation of the end cap pushing mechanism 52, the upper positioning mechanism 1 55, the upper positioning mechanism 2 56, and the rear pushing mechanism 53. Specifically, the end cap push plate 521 and the front power cylinder 522 cooperate to push the end cap, allowing the groove on the side of the end cap to coincide with the groove on the side of the outer shell, facilitating the installation of the shearing pin. The rear top plate 531 of the rear pushing mechanism 53 and the rear power cylinder 532 cooperate to assist in pushing the end cap, fixing the outer shell during end cap assembly and preventing movement that could lead to improper end cap installation.

[0058] In one implementation, the connecting plate 565 is a rectangular stainless steel plate, fixed directly above the end cap mounting position. One side is fixed to the frame, and the other side is fitted with the elbow clamp 561 and the slide rail of the fixing plate 562. Correspondingly, the fixing plate 562 has a groove that mates with the slide rail. The function of the connecting plate 565 is to connect the upper positioning mechanism 56 to the frame and to position the fixing plate 562.

[0059] This invention establishes a control system based on a PLC to achieve coordinated operation of mechanical and electrical components. The workflow is as follows:

[0060] First, the outer casing is transported from the feeding mechanism 2 to the transfer mechanism 1, where it is fixed by the fixing mechanism of the carrier plate 12. The carrier plate 12 and the feeding cylinder are then transported to the working position of the automatic sealing ring assembly mechanism 3 via the double-speed chain 11. A cylinder then lifts the outer casing to a height level with the pushing mechanism 32, after which the automatic assembly positioning mechanism 31 lowers and clamps the outer casing, and the sealing ring assembly is performed. After the sealing ring assembly is completed, the carrier plate 12 falls back onto the double-speed chain 11 and moves to the next station for nozzle assembly and labeling. After this, the outer casing continues to the automatic buoy and push rod assembly mechanism 4. A cylinder lifts the outer casing to a height level with the buoy pushing mechanism 42 and the outer casing clamping mechanism 43, after which the automatic buoy and push rod assembly positioning mechanism 41 lowers and clamps the outer casing, and the buoy assembly is performed. After this, the outer casing falls back onto the double-speed chain 11 and continues to the automatic rotary inkjet printing mechanism 6. After the cylinder lifts the outer shell to a height level with the rotating mechanism 61, the carrier plate 12 releases its fixation on the outer shell, allowing the rotating mechanism 61 to rotate the outer shell. Then, the printing mechanism 62 performs the printing operation. After the printing operation is completed, the outer shell falls onto the speed-multiplying chain 11 and continues to flow to the working position of the unloading robot. After entering the working position, the carrier plate 12 releases the outer shell, allowing the robot to transfer the outer shell. After the outer shell is transferred, the carrier plate 12 returns to the initial position and repeats the previous round of work.

[0061] The above description only illustrates preferred embodiments of the present invention and should not be construed as limiting the scope of the claims. Any equivalent structural or procedural modifications made using this specification are included within the patent protection scope of the present invention.

Claims

1. A dispensing cartridge automatic assembly apparatus, characterized by: The application relates to a floating ball and push rod automatic assembly device for a total assembly process of a drop-off cylinder, which comprises a flow transfer mechanism (1), a feeding mechanism (2), a sealing ring automatic assembly mechanism (3), a floating ball and push rod automatic assembly mechanism (4), an end cover automatic assembly mechanism (5) and a shell cylinder automatic rotation and printing mechanism (6) arranged on a rack, and the mechanisms can realize the total assembly process of the drop-off cylinder. The flow transfer mechanism (1) comprises a speed-up chain (11) and a carrier plate (12), and the speed-up chain (11) and the carrier plate (12) are matched to realize the automatic flow transfer and fixation of the shell cylinder. The feeding mechanism (2) comprises mechanical clamps (21) and a shell cylinder storage groove (22), and the mechanical clamps (21) and the shell cylinder storage groove (22) are matched to realize the storage and automatic feeding of the shell cylinder. The sealing ring automatic assembly mechanism (3) comprises a sealing ring automatic assembly positioning mechanism (31) and a pushing mechanism (32), and the flow transfer mechanism (1) and the sealing ring automatic assembly mechanism (3) are matched to realize the fixation of the shell cylinder and the automatic assembly of the sealing ring. The floating ball and push rod automatic assembly mechanism (4) comprises a floating ball and push rod automatic assembly positioning mechanism (41), a floating ball pushing mechanism (42) and a shell cylinder pressing mechanism (43), the flow transfer mechanism (1) and the floating ball and push rod automatic assembly mechanism (4) are matched to realize the fixation of the shell cylinder and the assembly of the floating ball and push rod assembly, the floating ball pushing power mechanism (421) transmits power to the push rod assembly and the floating ball to realize the assembly of the floating ball and push rod assembly, and the shell cylinder pressing mechanism (43) offsets the force of the floating ball pushing mechanism (42) pushing the floating ball and push rod assembly, so that the shell cylinder remains static during the assembly of the floating ball and push rod assembly. The end cover automatic assembly mechanism (5) comprises an end cover automatic assembly positioning mechanism (51), an end cover pushing mechanism (52) and a rear pushing mechanism (53), the flow transfer mechanism (1) and the end cover automatic assembly mechanism (5) are matched to realize the fixation of the shell cylinder and the assembly of the end cover, the end cover pushing mechanism (52) comprises an end cover pushing plate (521), the end cover pushing plate (521) is provided with a convex part matched with the inner surface of the end cover, and the rear pushing mechanism (53) is arranged at the rear of the end cover pushing mechanism (52). The shell cylinder automatic rotation and printing mechanism (6) comprises a rotating mechanism (61) and a printing mechanism (62), and the flow transfer mechanism (1) and the shell cylinder automatic rotation and printing mechanism (6) are matched to realize the automatic rotation, positioning and printing of the shell cylinder. The carrier plate (12) is provided with three front, middle and rear supporting mechanisms (120) and two front and rear clamping mechanisms (121), which are matched to fix the shell cylinder, the three supporting mechanisms (120) each comprise a positioning block (125) with a V-shaped groove on the upper surface, the shell cylinder is placed in the V-shaped groove, the two clamping mechanisms (121) each comprise a clamp assembly composed of two opposite L-shaped bent corner pieces (126), and the two opposite L-shaped bent corner pieces (126) of the clamping mechanism (121) are in sliding fit with the carrier plate (12). The float and push rod automatic assembly positioning mechanism (41) comprises a mutually cooperating upper positioning mechanism (410) and a lower positioning mechanism, wherein the upper positioning mechanism (410) comprises a positioning member (401) and a telescopic mechanism (402) connected thereto, the telescopic mechanism (402) is located above the positioning member (401) and is used to drive the positioning member (401) to move up and down; the lower positioning mechanism comprises a lower positioning block and a moving mechanism connected thereto, the lower positioning block is concave with a groove adapted to the shell cylinder, and the telescopic mechanism (402) and the moving mechanism are both air cylinders; The end cover automatic assembly positioning mechanism (51) comprises an upper positioning mechanism one (55) and an upper positioning mechanism two (56), wherein The upper positioning mechanism one (55) comprises a positioning block (551) and a driving air cylinder (552) connected thereto, the lower end surface of the positioning block (551) is V-shaped and is arranged directly above the end cover assembly position; the driving air cylinder (552) is located above the positioning block (551) and is used to drive the positioning block to move up and down; The upper positioning mechanism two (56) comprises an elbow clamp (561), a fixed plate (562), an elastic mechanism (563), a connecting rod (564) and a connecting plate (565); the upper positioning mechanism two (56) is fixed on the rack through the connecting plate (565), the elbow clamp (561) is fixed on the connecting plate (565), the elbow clamp (561) is connected with the upper end of the vertically arranged fixed plate (562) through the connecting rod (564), and the back surface of the fixed plate (562) is further connected with the connecting plate (565) through the elastic mechanism (563) so as to pull down the elbow clamp (561) after the assembly work is completed, so that the elastic mechanism (563) drives the fixed plate (562) to lift to the initial position.

2. The drop tube automatic assembly apparatus of claim 1, wherein: The V-shaped groove and the L-shaped bent corner member (126) are both provided with anti-skid pads (127).

3. The drop tube automatic assembly apparatus of claim 1, wherein: The float push mechanism (42) comprises a float push power mechanism (421), a connecting mechanism (422) and a pushing mechanism (423); the float push power mechanism (421) conducts power to the push rod assembly and the float through the connecting mechanism (422) and the pushing mechanism (423), so as to realize the assembly of the float and the push rod assembly.

4. The drop tube automatic assembly apparatus of claim 1, wherein: The shell cylinder jacking mechanism (43) comprises a top plate mechanism (431) and a jacking power mechanism (432), the top plate mechanism (431) is driven by the jacking power mechanism (432), and the power of the jacking power mechanism (432) is conducted to the shell cylinder through the top plate mechanism (431), so as to counteract the force of the float push mechanism (42) pushing the float and the push rod assembly, and keep the shell cylinder stationary during the assembly of the float and the push rod assembly.

5. The drop tube automatic assembly apparatus of claim 1, wherein: The end cover push mechanism (52) further comprises a front power air cylinder (522) used to drive the end cover push plate (521) to move forward and backward, the end cover push plate (521) comprises a circular push plate, and the push plate is provided with a protrusion matched with the inner surface of the end cover.

6. The drop tube automatic assembly apparatus of claim 5, wherein: The rear pushing mechanism (53) comprises a rear top plate (531) and a rear power air cylinder (532), the rear top plate (531) is driven by the rear power air cylinder (532) to move forward and backward, and the rear top plate (531) is a concave-shaped stainless steel plate.

7. The drop tube automatic assembly apparatus of claim 1, wherein: The connecting plate (565) is a rectangular stainless steel plate, which is fixed above the end cover mounting position, one side is fixed on the frame, and the other side is mounted with the slide rail of the elbow clamp (561) and the fixing plate (562).

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