Full-automatic high-speed hose shoulder injection machine

Abstract

The application discloses a kind of full-automatic hose high-speed shoulder injection machine, belong to the technical field of shoulder injection machine, solve the low precision and poor cooling forming effect of existing hose shoulder injection machine Problem, its technical key points are: including shoulder injection mechanism and shooting seat mechanism, shoulder injection mechanism includes carousel mechanism, pipe feeding mechanism and pipe discharging mechanism, nine sets of die holder structures on a carousel, make the hose shoulder after being in a continuous cooling pressure maintaining environment, hose forming effect is better, avoid the phenomenon of shoulder lifting, motor drives carousel rotation, speed is fast, accuracy is high, the structure of die holder is that core rod is below, forming die bowl is above, beneficial to the flow of material, forming effect is better, pipe feeding is divided into first alignment and second alignment, alignment is accurate, production qualified rate is high, pipe feeding roller of pipe feeding has four stations, there is an additional cache time, avoid the phenomenon of empty pipe entering core rod, with the advantages of fast processing speed, high precision and good cooling forming effect.

Description

Technical Field

[0001] This invention relates to the field of shoulder injection machines, and more specifically to a fully automatic high-speed shoulder injection machine using a flexible tube. Background Technology

[0002] For any type of equipment, production speed and product quality are both crucial. In fully automatic hose injection molding machines, the design of the mold base has a vital impact on both hose quality and output.

[0003] Currently, most existing equipment has the forming mold bowl at the bottom and the mandrel at the top, with the mold bowl rotating with the mandrel on the turntable. This structure has good pressure holding and cooling effects, but the forming effect is not good when the forming bowl is at the bottom; or the forming mold bowl is at the top and the mandrel at the bottom, with the mold bowl not rotating with the mandrel on the turntable. This structure has good forming effects, but the pressure holding and cooling effects are not good, and it cannot meet the needs of actual use.

[0004] As can be seen from the above, the existing tube injection molding machines have the disadvantages of low precision and poor cooling and molding effect, making it difficult to promote and apply them.

[0005] Therefore, there is a need to provide a fully automatic high-speed tube shoulder injection machine to solve the above problems. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a fully automatic high-speed tube shoulder injection machine to solve the problems mentioned in the background.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A fully automatic high-speed tube shoulder injection machine includes a shoulder injection mechanism and an injection base mechanism. The shoulder injection mechanism includes a turntable mechanism, a tube inlet mechanism, and a tube outlet mechanism. The tube inlet mechanism is equipped with a tube inlet alignment mechanism, which is connected to a tube inlet roller mechanism. The tube outlet mechanism includes a tube outlet lifting mechanism, a mechanical gripper mechanism, and a tube outlet conveyor belt. The turntable mechanism includes a turntable and a mold frame. A tube outlet conveyor belt is provided on one side of the tube outlet lifting mechanism. The injection base mechanism includes an injection base frame, an extrusion mechanism, and a spraying mechanism. The spraying mechanism is installed on one side of the extrusion mechanism. The extrusion mechanism is installed on the injection base frame. The extrusion mechanism and the spraying mechanism are movably installed on the injection base frame via a first guide rail slider. The output shaft of a first cylinder is connected to the extrusion mechanism via a fourth connecting plate. The first cylinder is installed on the injection base frame via a fifth connecting plate.

[0009] As a further embodiment of the present invention, the turntable mechanism further includes a first motor, a mounting plate, a mounting base, a bearing, a first connecting shaft, and a small turntable. The first motor is mounted on the mounting plate, the turntable is fixedly connected to the outer ring output shaft of the first motor, the first connecting shaft is fixedly connected to the inner ring output shaft of the first motor, the first connecting shaft is fitted with the inner ring of the bearing, the outer ring of the bearing is fitted and mounted on the mounting base, and the upper end face of the mounting base is fitted and connected to the small turntable.

[0010] As a further embodiment of the present invention, the turntable mechanism further includes a base plate, a rotary joint outer sleeve, a third deep groove ball bearing, a rotary joint shaft, a first connecting plate, a water distributor base plate, a water distributor, and a connecting rod. A plurality of stainless steel water pipes are connected through the inner ring of the first connecting shaft. The upper end of each stainless steel water pipe is connected to the water distributor, and the lower end of each stainless steel water pipe is connected to the rotary joint shaft. The base plate is connected to the rotary joint outer sleeve. A third deep groove ball bearing is installed on the inner ring of the rotary joint outer sleeve. The inner ring of the bearing is connected to the rotary joint shaft. The rotary joint shaft is fixedly connected to the water distributor base plate via the first connecting plate. The water distributor base plate is fixedly connected to the water distributor.

[0011] As a further embodiment of the present invention, a plurality of linear bearings are installed on the base plate of the water distributor. A connecting rod is provided inside the linear bearing. The lower end of the connecting rod is fixedly installed on a small turntable. The upper end of the connecting rod is connected to a nonagonal frame. An air distribution plate is installed on the upper end of the nonagonal frame. The air distribution plate is connected to a solenoid valve. The upper end of the air distribution plate is connected to the lower end of a rotary joint through a second connecting shaft. An air pipe is connected to the upper end of the rotary joint.

[0012] As a further embodiment of the present invention, the tube ejection and lifting mechanism includes a tube ejection clamp, a flexible hose, a finger cylinder, a second connecting plate, a third connecting plate, and a slide module. The tube ejection clamp is fixedly connected to the piston rod of the finger cylinder. The finger cylinder is mounted on the slide module through the second connecting plate and the third connecting plate. A flexible hose is provided below the tube ejection clamp.

[0013] As a further embodiment of the present invention, the extrusion mechanism includes a first vertical plate, a second cylinder, a sixth connecting plate, a third connecting shaft, a bearing seat, a fourth connecting shaft, a first synchronous pulley, a synchronous belt, a second synchronous pulley, a first reducer, a screw, a barrel, and a third vertical plate. The first vertical plate is fixedly mounted on the injection base frame. A second cylinder is mounted on the first vertical plate. The second cylinder is connected to the second vertical plate via the sixth connecting plate and the third connecting shaft. A bearing seat is mounted on the second vertical plate. The inner ring of the bearing seat is connected to the fourth connecting shaft. One side of the fourth connecting shaft is connected to the first synchronous pulley. The first synchronous pulley is connected to the first reducer and the second motor via the synchronous belt and the second synchronous pulley, respectively. The other side of the fourth connecting shaft is connected to the screw. The outer circle of the screw is connected to the barrel. The barrel is fixedly mounted on the third vertical plate.

[0014] As a further embodiment of the present invention, a first heating ring is installed on the outer ring of the material cylinder, and the hopper is fixedly installed on the third upright plate through a seventh connecting plate. The third upright plate and the material cylinder are respectively provided with feed inlets at the corresponding connection points with the hopper. The second upright plate is installed on the second guide rail slider, and the mounting surface on the other side of the second guide rail slider and the third upright plate are both installed on the panel.

[0015] As a further embodiment of the present invention, the spraying mechanism includes a spraying back plate, a second reducer, a third motor, an eccentric wheel, a first deep groove ball bearing, a cam, a second deep groove ball bearing, a first positioning pin, and a material rod adjusting block. The spraying back plate is installed on the fourth vertical plate on both sides of the extrusion mechanism through threaded holes on both sides. The second reducer and the third motor are installed on the back of the spraying back plate. The output shaft of the second reducer is fixedly connected to the eccentric wheel. The outer ring of the eccentric wheel is connected to the first deep groove ball bearing. The outer ring of the first deep groove ball bearing is connected to the cam. The lower end of the cam is connected to the material rod adjusting block through the second deep groove ball bearing and the first positioning pin.

[0016] As a further embodiment of the present invention, the spraying mechanism further includes a fifth connecting shaft, a second positioning pin, a material rod nut, and a material rod. A plurality of material rod adjusting blocks are installed on the material rod adjusting block. The material rod adjusting block is connected to the material rod through the second positioning pin and the material rod nut. The outer diameter of the material rod nut is smaller than the inner diameter of the fifth connecting shaft, and the material rod is threadedly connected to the material rod nut.

[0017] As a further embodiment of the present invention, a die head is provided below the material rod, the inlet of the die head is connected to the outlet of the material cylinder, a plurality of positioning shafts are installed on the die head, the inner circle of the positioning shafts is connected to the material rod, a nozzle and an air cover are installed below the die head, the air cover is connected to an air blowing system, and a plurality of second heating coils are installed inside the die head.

[0018] In summary, the embodiments of the present invention have the following beneficial effects compared with the prior art:

[0019] 1. The present invention is a structure with nine sets of mold frames on a turntable, which keeps the hose in a continuous cooling and pressure-holding environment after the shoulder is injected, resulting in better hose forming effect and avoiding the phenomenon of shoulder lifting.

[0020] 2. Compared with the traditional divider that drives the turntable, the present invention uses a motor to drive the turntable to rotate, which is faster and more accurate.

[0021] 3. The mold frame has a mandrel at the bottom and a forming mold bowl at the top, which facilitates material flow and results in better forming.

[0022] 4. The inlet pipe is divided into primary alignment and secondary alignment, which ensures accurate alignment and a high production qualification rate.

[0023] 5. The tube inlet roller has four stations. The first station is where the hose enters the roller, and the third station is where the hose enters the mandrel from the roller. There is one station in between, so when an empty tube enters the roller, there is an extra buffer time, preventing the empty tube from entering the mandrel. At the same time, the tube inlet on the roller and the insertion of the hose on the roller into the mandrel can be carried out simultaneously, which is faster.

[0024] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of an embodiment of the invention.

[0026] Figure 2 This is a schematic diagram of the shoulder injection mechanism in an embodiment of the invention.

[0027] Figure 3 This is a schematic diagram of the turntable mechanism in an embodiment of the invention.

[0028] Figure 4 This is a front view schematic diagram of the turntable mechanism in an embodiment of the invention.

[0029] Figure 5 This is a cross-sectional view of the turntable mechanism in an embodiment of the invention.

[0030] Figure 6 This is a schematic diagram of the structure connecting the main body of the water distributor in an embodiment of the invention.

[0031] Figure 7 This is a cross-sectional structural diagram of the water distributor body connection in an embodiment of the invention.

[0032] Figure 8 This is a schematic diagram of the inlet pipe mechanism in an embodiment of the invention.

[0033] Figure 9 This is a schematic diagram of the tube alignment mechanism in an embodiment of the invention.

[0034] Figure 10 This is a schematic diagram of the inlet roller mechanism in an embodiment of the invention.

[0035] Figure 11 This is a schematic diagram of the tube outlet mechanism in an embodiment of the invention.

[0036] Figure 12 This is a schematic diagram of the pipe lifting mechanism in an embodiment of the invention.

[0037] Figure 13 This is a schematic diagram of the shooting mechanism in an embodiment of the invention.

[0038] Figure 14 This is a cross-sectional view of the extrusion mechanism in an embodiment of the invention.

[0039] Figure 15 This is a top view of the extrusion mechanism in an embodiment of the invention.

[0040] Figure 16 This is a half-sectional schematic diagram of the extrusion mechanism in an embodiment of the invention.

[0041] Figure 17 This is a schematic diagram of the spraying mechanism in an embodiment of the invention.

[0042] Figure 18 This is a front view of the spraying mechanism in an embodiment of the invention.

[0043] Figure 19 This is a cross-sectional view of the spraying mechanism in an embodiment of the invention.

[0044] Figure 20 This is a cross-sectional view of the feed rod in an embodiment of the invention.

[0045] Reference numerals: 1. Injection mechanism; 101. First motor; 102. Mounting plate; 103. Turntable; 104. Mounting base; 105. Bearing; 106. First connecting shaft; 107. Small turntable; 108. Stainless steel water pipe; 109. Nonagonal frame; 110. Solenoid valve; 111. Air distribution plate; 112. Second connecting shaft; 113. Rotary joint; 114. Air pipe; 2. Turntable mechanism; 201. Base plate; 202. Rotary joint outer sleeve; 203. Third deep groove ball bearing; 204. Rotary joint shaft; 205. First connecting plate; 206. 1. Water distributor base plate; 207. Water distributor; 208. Connecting rod; 209. Linear bearing; 3. Inlet pipe mechanism; 301. Inlet pipe alignment mechanism; 302. Inlet pipe roller mechanism; 4. Outlet pipe mechanism; 401. Outlet pipe clamp; 402. Hose; 403. Finger cylinder; 404. Second connecting plate; 405. Third connecting plate; 406. Slide module; 407. Outlet pipe conveyor belt; 408. Mold frame; 409. Outlet pipe lifting mechanism; 5. Extrusion mechanism; 501. First guide rail slider; 502. First cylinder; 503. Fourth connecting plate; 504. 505. Fifth connecting plate; 506. Injection base frame; 507. First vertical plate; 508. Second cylinder; 509. Sixth connecting plate; 510. Third connecting shaft; 511. Second vertical plate; 512. Bearing seat; 513. Fourth connecting shaft; 514. First synchronous pulley; 515. Synchronous belt; 516. Second synchronous pulley; 517. First reducer; 518. Screw; 519. Barrel; 520. Third vertical plate; 521. First heating coil; 522. Hopper; 523. Seventh connecting plate; 524. Second guide rail slider; 525. Panel; 526. Second motor; 6. Fourth vertical plate; 6. Spraying mechanism; 601. Spraying back plate; 602. Second reducer; 603. Third motor; 604. Eccentric wheel; 605. First deep groove ball bearing; 606. Cam; 607. Second deep groove ball bearing; 608. First positioning pin; 609. Material rod adjusting block; 610. Fifth connecting shaft; 611. Second positioning pin; 612. Material rod nut; 613. Material rod; 614. Die head; 615. Positioning shaft; 616. Nozzle; 617. Air cover; 618. Second heating coil; 7. Injection seat mechanism. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0047] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0048] See Figures 1 to 20A fully automatic high-speed tube shoulder injection machine includes a shoulder injection mechanism 1 and an injection base mechanism 7. The shoulder injection mechanism 1 includes a turntable mechanism 2, a tube inlet mechanism 3, and a tube outlet mechanism 4. The tube inlet mechanism 3 is equipped with a tube inlet alignment mechanism 301, which is connected to a tube inlet roller mechanism 302. The tube outlet mechanism 4 includes a tube outlet lifting mechanism 409, a mechanical gripper mechanism, and a tube outlet conveyor belt 407. The turntable mechanism 2 includes a turntable 103 and a mold frame 408. One side of the tube outlet lifting mechanism 409 is provided with an outlet... The tube conveyor belt 407, the injection mechanism 7 includes an injection base frame 505, an extrusion mechanism 5 and a spraying mechanism 6, the spraying mechanism 6 is installed on one side of the extrusion mechanism 5, the extrusion mechanism 5 is installed on the injection base frame 505, the extrusion mechanism 5 and the spraying mechanism 6 are movably installed on the injection base frame 505 through a first guide rail slider 501, the output shaft of the first cylinder 502 is connected to the extrusion mechanism 5 through a fourth connecting plate 503, and the first cylinder 502 is installed on the injection base frame 505 through a fifth connecting plate 504.

[0049] Preferably, when the injection mechanism 7 is working, the first cylinder 502 retracts, and the extrusion mechanism 5 and the spraying mechanism 6 extend to the position corresponding to the mandrel. When the machine stops working, the cylinder extends, and the extrusion mechanism 5 and the spraying mechanism 6 retract as a whole.

[0050] Furthermore, the turntable mechanism 2 also includes a first motor 101, a mounting plate 102, a mounting base 104, a bearing 105, a first connecting shaft 106, and a small turntable 107. The first motor 101 is mounted on the mounting plate 102. The turntable 103 is fixedly connected to the outer ring output shaft of the first motor 101. The first connecting shaft 106 is fixedly connected to the inner ring output shaft of the first motor 101. The inner ring of the bearing 105 is connected to the first connecting shaft 106. The outer ring of the bearing 105 is mounted on the mounting base 104. The upper end face of the mounting base 104 is connected to the small turntable 107.

[0051] Preferably, the small turntable 107 is fixed to the upper end of the mold frame, and the lower end of the mold frame is fixed to the turntable 103. When the motor rotates, the turntable 103 rotates together with the mold frame and the small turntable 107.

[0052] Furthermore, the turntable mechanism 2 also includes a base plate 201, a rotary joint outer sleeve 202, a third deep groove ball bearing 203, a rotary joint shaft 204, a first connecting plate 205, a water distributor base plate 206, a water distributor 207, and a connecting rod 208. A plurality of stainless steel water pipes 108 are connected through the inner ring of the first connecting shaft 106. The upper end of each stainless steel water pipe 108 is connected to the water distributor 207, and the lower end of each stainless steel water pipe 108 is connected to the rotary joint shaft 204. The base plate 201 is connected to the rotary joint outer sleeve 202. The inner ring of the rotary joint outer sleeve 202 is fitted with the third deep groove ball bearing 203. The inner ring of the bearing 105 is connected to the rotary joint shaft 204. The rotary joint shaft 204 is fixedly connected to the water distributor base plate 206 via the first connecting plate 205. The water distributor base plate 206 is fixedly connected to the water distributor 207.

[0053] Preferably, when the first motor 101 rotates, the small turntable 107 rotates, the water distributor 207 rotates together with the small turntable 107, the rotary joint shaft 204 rotates, and the rotary joint sleeve 202 is fixed on the base plate.

[0054] Furthermore, a plurality of linear bearings 209 are installed on the base plate 206 of the water distributor. A connecting rod 208 is provided inside the linear bearing 209. The lower end of the connecting rod 208 is fixedly installed on the small turntable 107. The upper end of the connecting rod 208 is connected to the nonagonal frame 109. An air distribution plate 111 is installed on the upper end of the nonagonal frame 109. The air distribution plate 111 is connected to a solenoid valve 110. The upper end of the air distribution plate 111 is connected to the lower end of the rotary joint 113 through a second connecting shaft 112. An air pipe 114 is connected to the upper end of the rotary joint 113.

[0055] Preferably, the solenoid valve 110 is connected to the cylinder and the gas-liquid booster cylinder on the mold frame via an air pipe. When the first motor 101 rotates, the turntable 103, the water distributor 207, the nonagonal frame 109, the air distribution plate 111, and the mold frame rotate together.

[0056] Furthermore, the tube delivery and lifting mechanism 409 includes a tube delivery clamp 401, a flexible hose 402, a finger cylinder 403, a second connecting plate 404, a third connecting plate 405, and a slide module 406. The tube delivery clamp 401 is fixedly connected to the piston rod of the finger cylinder 403. The finger cylinder 403 is mounted on the slide module 406 through the second connecting plate 404 and the third connecting plate 405. The flexible hose 402 is provided below the tube delivery clamp 401.

[0057] Preferably, the sliding table module 406 moves to drive the tube clamp 401 to move up and down. When the mandrel on the mold frame extends, the air blowing from the bottom of the mandrel by the ventilation system pushes the hose 402 upward. The sliding table module 406 drives the tube clamp 401 to move downward to grab the hose 402. The sliding table module 406 moves upward to lift the hose 402 upward. Then, the tube clamp 401 is equipped with a suction nozzle, which sucks the hose 402 and places it on the tube conveyor belt 407. The tube conveyor belt 407 transports the hose to the storage box or the next process.

[0058] It should be noted that the tube feeding mechanism 3 includes a base, on the surface of which a tube feeding robot is mounted. Below the tube feeding robot is a positioning conveyor belt, on which a positioning mechanism is mounted. The positioning mechanism is located below the tube feeding robot. A tube feeding conveyor belt is located on one side of the positioning conveyor belt. Both the positioning conveyor belt and the tube feeding conveyor belt are mounted on the base. A sensing plate is mounted on the outer wall of the connecting shaft 2, and a sensor that works in conjunction with the sensing plate is mounted at the bottom of the middle horizontal plate. This ensures that each rotation is 90°, and the positioning is accurate and reliable.

[0059] The machine base is also equipped with a tube infeed roller mechanism, which includes two vertical plates and three horizontal plates. The two vertical plates and three horizontal plates are assembled to form a frame. The two upper horizontal plates are each equipped with a diamond-shaped bearing with a seat. A central shaft is rotatably connected to the two diamond-shaped bearings. The bottom end of the central shaft is fixed to the upper surface of the roller assembly, and the top end of the central shaft is connected to the ventilation pipe through a rotary joint. The other end of the roller assembly is fixed to one end of a connecting shaft through a shrink sleeve. The other end of the connecting shaft is fixed to the output end of the reducer through a coupling. The input end of the reducer is fixed to the output shaft of the motor. The reducer and the motor are both installed at the bottom of the lowest horizontal plate. The motor can drive and rotate the roller assembly, thereby enabling the tube infeeding robot to place the tube and the tube inserter to press the tube simultaneously, saving time and increasing work efficiency.

[0060] The roller assembly includes an upper roller and a lower roller, which are connected by a connecting shaft. Multiple upper tube grooves are installed on the side wall of the upper roller, and multiple lower tube grooves are installed on the side wall of the lower roller. The upper and lower tube grooves are in the same position. The tube grooves can be changed according to different tube diameters to adapt to the production of hoses of different diameters.

[0061] An adjusting bolt is threaded onto the outer wall of the upper roller; the distance between the two can be adjusted using the adjusting bolt to accommodate the production of hoses of different lengths.

[0062] In this system, after the hose exits the tube-making machine or extruder, it directly enters the inlet conveyor belt, and then proceeds to the alignment conveyor belt. The alignment conveyor belt is equipped with an alignment mechanism. After the hose is aligned, the inlet robot places the hose on the inlet roller mechanism. Due to the suction structure inside the roller assembly, the hose can be adsorbed onto the roller assembly. The motor is started and drives the second connecting shaft to rotate through the reducer. The second connecting shaft drives the roller assembly to rotate through the expansion sleeve. The roller assembly has four placement surfaces, rotating 90° each time, so that the inlet robot can place the hose on different surfaces of the roller assembly. When the roller assembly rotates 180° to the inlet insertion station on the back, the module slide works and drives the inserter to move through the connecting plate, thereby pressing down the hose and inserting it into the mandrel.

[0063] It should be noted that the inlet alignment mechanism 301 includes two horizontal plates and two vertical plates. The two horizontal plates and two vertical plates are assembled to form a frame. The frame is installed on the top of the inlet roller mechanism. The inlet roller mechanism 302 has a roller assembly inside, and a roller tube groove is installed on the roller assembly for intermittently feeding the hose.

[0064] A color mark sensor is installed inside the tube inlet roller mechanism 302. The color mark sensor is located on one side below the roller assembly. The color mark sensor detects the cursor on the tube and controls the stepper motor to achieve accurate and reliable positioning of the tube.

[0065] A turntable is provided on one side of the tube feeding roller mechanism 302. Multiple sets of mold frames are installed on the turntable, and a core rod is installed at the bottom of the mold frame; this facilitates continuous tube feeding.

[0066] The mandrel is positioned directly below the intubator; ensure the tubing is smoothly inserted into the mandrel using the intubator.

[0067] A modular slide is installed on one side of the frame. The modular slide is fixed to the bearing seat via a fixing plate. A third deep groove ball bearing is rotatably connected to the bearing seat via a first deep groove ball bearing. The bottom end of the third deep groove ball bearing is fixed to the top end of the inserter. The inserter includes an inserter cover. The top end of the inserter cover is threaded to the bottom end of the third deep groove ball bearing. The bottom end of the inserter cover is fixed to the inserter core via a hollow hexagonal head bolt. A connecting rod is installed inside the inserter cover. The bottom end of the connecting rod is connected to the inserter core via an expander. The top end of the connecting rod passes through the inserter cover and the third deep groove ball bearing and is fixed to the telescopic shaft of the cylinder. A linear spring is installed between the inserter cover and the inserter core. By moving the inserter downward, the hose adsorbed on the roller tube groove is pressed down, so that the lower end of the hose is inserted into the mandrel, realizing tube insertion. The linear spring can play a buffering role.

[0068] The top of the third deep groove ball bearing is fixedly connected to a synchronous pulley. The synchronous pulley is connected to the synchronous pulley via a synchronous belt. The synchronous pulley is fixed to the top of the third deep groove ball bearing. The bottom of the third deep groove ball bearing is fixedly connected to the inner ring of the ball spline. The outer side of the ball spline is rotatably connected to the fixed block via the deep groove ball bearing. The fixed block is fixedly connected to the fixed plate via a connecting plate. A key shaft is provided inside the ball spline. The bottom of the key shaft is rotatably connected to a seated bearing. The seated bearing is fixed to the bottom of the frame. The top of the key shaft is fixedly connected to the output shaft of the stepper motor via a coupling. The stepper motor is installed on the top of the frame.

[0069] In this solution, when the turntable rotates, it moves the mold frame to the tube inlet station. There are multiple mold frames on the turntable; only one is shown in the diagram. At this time, the sliding module moves the bearing seat downwards via the fixed plate. The bearing seat, through deep groove ball bearing one and the third deep groove ball bearing one, moves the tube inserter downwards, pressing down the flexible tube adsorbed on the roller groove, so that the lower end of the flexible tube is inserted into the mandrel, while the inner core of the tube inserter is inserted into the upper end of the flexible tube. At this time, the stepper motor drives the ball spline to rotate via the key shaft, thereby driving the second synchronous pulley to rotate. The second synchronous pulley... The synchronous belt drives the first synchronous pulley to rotate, and the first synchronous pulley drives the inserter to rotate through the third deep groove ball bearing, thereby driving the hose to rotate. Since a color mark sensor is installed on one side of the hose, when the color mark sensor senses the cursor on the hose, the stepper motor stops rotating, and the alignment is completed. At this time, the module slide moves the hose down again until the upper end of the hose is 1-2mm higher than the rod head on the mandrel. The module slide is then lifted up and reset, and the tube insertion is completed. The turntable drives the mold frame to continue rotating and drives the next set of mold frames to repeat the above steps.

[0070] It should be noted that the mold frame mentioned in the text includes a pneumatic-hydraulic booster cylinder fixed to the top of the top plate. The telescopic end of the pneumatic-hydraulic booster cylinder passes through the top plate and is fixedly connected to a connecting block. The bottom end of the connecting block is fixedly connected to an upper template. The upper template is movably fitted outside four mold guide rods. The four mold guide rods are all fixed to the bottom plate and the top plate. A lower template is attached to the bottom of the upper template. The lower template is movably fitted outside the four mold guide rods. The top of the lower template is fixedly connected to two symmetrically arranged key strips. The top of the two key strips is slidably fitted with two symmetrically arranged toothed plates. The bottom end of the upper template is fixedly connected to two symmetrically arranged inclined guide pillars. The two toothed plates and the lower template are all provided with inclined holes that mate with the inclined guide pillars. The toothed plates and the lower template can slide up and down with the inclined guide pillars through the inclined holes. A water pipe connector for passing ice water is fixed to the water inlet on one side wall of the upper and lower templates. Two symmetrically arranged ejector sleeves are installed on the upper template. The system features cooling channels for circulating ice water. Two symmetrically arranged mold bowls are mounted on the lower mold plate, each with its own cooling channel. Two symmetrically arranged cylinders are located below the lower mold plate, both fixed to the bottom of a support block. The support block is fixed to the outside of two mold guide rods. The telescopic ends of the cylinders penetrate the support block and fit against the bottom of the lower mold plate. As the toothed plates slide up and down on the inclined guide post, the distance between the two toothed plates increases or decreases accordingly. The cooling channels effectively cool the formed hose. After spraying, the mold frame remains in a combined cooling and pressure-holding state, resulting in better hose forming and cooling. Furthermore, the use of a pneumatic-hydraulic booster cylinder provides greater output, better forming effect, and stable output, improving production efficiency. The reduced weight also decreases the rotational inertia of the turntable, increasing its rotational speed and further improving production efficiency.

[0071] Two symmetrically arranged guide rail seats at the top of the base plate are each slidably connected to a guide rail slider with an inverted vertical cross-section. The top of each guide rail slider is detachably connected to a fixing plate by four bolts. A mandrel is fixed to the top of the fixing plate, and a rod head is installed on the top of each mandrel. A flexible tube is movably sleeved on the outside of the mandrel. The rod head and mandrel can be replaced according to the different diameters of the flexible tube. The two fixing plates are connected to the telescopic rod of the cylinder through connecting blocks. The cylinder is fixed to the base plate. A diaphragm cylinder is also provided between the two rod heads. The diaphragm cylinder is connected to the two fixing plates through a vertical plate. The mold frame is equipped with forward and backward cylinders to drive the mandrel to move back and forth, which facilitates material spraying and mold closing. Cylinders are installed on both sides of the mold frame to help the mold plate open quickly, speeding up the production speed and improving the production efficiency.

[0072] In this design, the mold frame is a crucial structure for the shoulder forming of the flexible tube injection molding machine. The machine has nine sets of these mold frames, mounted on a circular turntable. The mold frame rotates with the turntable. When the material is sprayed onto the mandrel, the machine enters the mold closing process. The diaphragm cylinder clamps the mandrel, ensuring the flexible tube holds tightly to the mandrel. This prevents the flexible tube from being pressed down during mold closing and from being pulled out during mold opening. The cylinder retracts, moving the mandrel back to its original position. At this time, the pneumatic-hydraulic booster cylinder opens, causing the upper and lower mold plates to move downwards until the mold cup and mandrel are pressed together. This creates a closed cavity formed by the ejector sleeve, jaw plate, mold cup, and mandrel. The shape of this cavity is the final shape of the flexible tube shoulder. After the shoulder injection is completed, the mold frame does not open until it is ready to exit the tube station. The mold frame opens when the No. 2 and No. 3 plates move upward. After the shoulder injection is completed, the mold frame remains closed. The turntable rotates, and the hose goes through six pressure holding and cooling processes before reaching the tube exit station. Before exiting the tube, the mold needs to be opened. The gas-liquid booster cylinder retracts, driving the upper mold plate to move upward. The cylinder opens, pushing the lower mold plate upward. At this time, the cylinder opens, pushing out the mandrel. The tube exit clamp at the tube exit station will remove the hose, and then the next cycle begins: tube entry, spraying, mold closing, pressure holding and cooling, and tube exit.

[0073] like Figure 1 , Figures 13-20 As shown, in a preferred embodiment of the present invention, the extrusion mechanism 5 includes a first vertical plate 506, a second cylinder 507, a sixth connecting plate 508, a third connecting shaft 509, a second vertical plate 510, a bearing seat 511, a fourth connecting shaft 512, a first synchronous pulley 513, a synchronous belt 514, a second synchronous pulley 515, a first reducer 516, a screw 517, a barrel 518, and a third vertical plate 519. The first vertical plate 506 is fixedly mounted on the injection base frame 505. The second cylinder 507 is mounted on the first vertical plate 506. The second cylinder 507 is connected to the third vertical plate 519 via the sixth connecting plate 508. The connecting shaft 509 is connected to the second vertical plate 510. A bearing seat 511 is installed on the second vertical plate 510. The inner ring of the bearing seat 511 is connected to the fourth connecting shaft 512. One side of the fourth connecting shaft 512 is connected to the first synchronous pulley 513. The first synchronous pulley 513 is connected to the first reducer 516 and the second motor 525 respectively through the synchronous belt 514 and the second synchronous pulley 515. The other side of the fourth connecting shaft 512 is connected to the screw 517. The outer circle of the screw 517 is connected to the material cylinder 518. The material cylinder 518 is fixedly installed on the third vertical plate 519.

[0074] Furthermore, a first heating coil 520 is installed on the outer ring of the material cylinder 518, and the hopper 521 is fixedly installed on the third vertical plate 519 through the seventh connecting plate 522. The third vertical plate 519 and the material cylinder 518 are respectively provided with feed inlets at the corresponding connection points with the hopper 521. The second vertical plate 510 is installed on the second guide rail slider 523, and the mounting surface on the other side of the second guide rail slider 523 and the third vertical plate 519 are both installed on the panel 524.

[0075] Preferably, when spraying is required, plastic granules enter the barrel 518 from the hopper 521. The first heating coil 520 outside the barrel 518 melts the plastic granules. At the same time, the second motor 525 rotates, which drives the screw 517 to rotate through the synchronous belt 514. In addition, during operation, the second cylinder 507 reciprocates, driving the screw 517 to reciprocate. Therefore, the screw 517 rotates and moves back and forth at the same time, thus extruding the melted plastic granules in the barrel 518 forward to the spraying mechanism 6.

[0076] Furthermore, the spraying mechanism 6 includes a spraying back plate 601, a second reducer 602, a third motor 603, an eccentric wheel 604, a first deep groove ball bearing 605, a cam 606, a second deep groove ball bearing 607, a first positioning pin 608, and a feed rod adjusting block 609. The spraying back plate 601 is installed on the fourth vertical plates 526 on both sides of the extrusion mechanism 5 through threaded holes on both sides. The second reducer 602 and the third motor 603 are installed on the back of the spraying back plate 601. The output shaft of the second reducer 602 is fixedly connected to the eccentric wheel 604. The outer ring of the eccentric wheel 604 is connected to the first deep groove ball bearing 605. The outer ring of the first deep groove ball bearing 605 is connected to the cam 606. The lower end of the cam 606 is connected to the feed rod adjusting block 609 through the second deep groove ball bearing 607 and the first positioning pin 608.

[0077] Furthermore, the spraying mechanism 6 also includes a fifth connecting shaft 610, a second positioning pin 611, a material rod nut 612, and a material rod 613. A plurality of material rod adjusting blocks 609 are installed on the material rod adjusting block 609. The material rod adjusting block 609 is connected to the material rod 613 through the second positioning pin 611 and the material rod nut 612. The outer diameter of the material rod nut 612 is smaller than the inner diameter of the fifth connecting shaft 610, and the material rod 613 is threadedly connected to the material rod nut 612.

[0078] Preferably, the outer diameter of the rod nut 612 is smaller than the inner diameter of the fifth connecting shaft 610, so that the position of the rod 613 can be adjusted in the X and Y directions. Since the rod 613 and the rod nut 612 are connected by a thread, the position of the rod 613 in the Z direction can also be adjusted.

[0079] Furthermore, a die head 614 is provided below the material rod 613. The inlet on the die head 614 is connected to the outlet on the material cylinder 518. Several positioning shafts 615 are installed on the die head 614. The inner circle of the positioning shaft 615 is connected to the material rod 613. A nozzle 616 and an air cover 617 are installed below the die head 614. The air cover 617 is connected to an air blowing system. Several second heating coils 618 are installed inside the die head 614.

[0080] Correspondingly, the air blowing system includes, but is not limited to, an air blowing pump, which is existing technology and will not be discussed further in this article.

[0081] Preferably, the die head 614 has two flow channels leading from the feed port to two holes in the loading rod. The die head 614 is equipped with four second heating coils 618 to achieve a continuous heating effect on the material. When the third motor 603 rotates, the third motor 603, in conjunction with the eccentric wheel 604 and the cam 606, drives the material rod 613 to move up and down, thereby continuously squeezing the material that has entered the die head from the material cylinder 518 downwards. In conjunction with the air blowing system on the air cover, the material is blown off and sprayed onto the mandrel on the die frame.

[0082] It should be noted that all components in this application are general standard parts or parts known to those skilled in the art, which effectively solves the problems of low precision and poor cooling and forming effect in existing hose injection molding machines.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fully automatic high speed hose shoulder injection machine characterized in that, The device includes a shoulder injection mechanism (1) and an injection base mechanism (7). The shoulder injection mechanism (1) includes a turntable mechanism (2), a tube inlet mechanism (3), and a tube outlet mechanism (4). The tube inlet mechanism (3) is equipped with a tube inlet alignment mechanism (301), and the tube inlet alignment mechanism (301) is connected to a tube inlet roller mechanism (302). The tube outlet mechanism (4) includes a tube outlet lifting mechanism (409), a mechanical gripper mechanism, and a tube outlet conveyor belt (407). The turntable mechanism (2) includes a turntable (103) and a mold frame (408). A tube outlet conveyor belt (407) is provided on one side of the tube outlet lifting mechanism (409). The injection mechanism (7) includes an injection base frame (505), an extrusion mechanism (5), and a spraying mechanism (6). The spraying mechanism (6) is installed on one side of the extrusion mechanism (5). The extrusion mechanism (5) is installed on the injection base frame (505). The extrusion mechanism (5) and the spraying mechanism (6) are movably installed on the injection base frame (505) via a first guide rail slider (501). The output shaft of the first cylinder (502) is connected to the extrusion mechanism (5) via a fourth connecting plate (503). The first cylinder (502) is installed on the injection base frame (505) via a fifth connecting plate (504). When the injection mechanism (7) is working, the first cylinder (502) retracts, and the extrusion mechanism (5) and the spraying mechanism (6) extend to the position corresponding to the mandrel. When the machine stops working, the cylinder extends, and the extrusion mechanism (5) and the spraying mechanism (6) retract as a whole. The turntable mechanism (2) includes a first motor (101), a mounting plate (102), a mounting base (104), a bearing (105), a first connecting shaft (106), and a small turntable (107). The first motor (101) is mounted on the mounting plate (102). The turntable (103) is fixedly connected to the outer ring output shaft of the first motor (101). The first connecting shaft (106) is fixedly connected to the inner ring output shaft of the first motor (101). The first connecting shaft (106) is connected to the inner ring of the bearing (105). The outer ring of the bearing (105) is mounted on the mounting base (104). The upper end face of the mounting base (104) is connected to the small turntable (107). The small turntable (107) is fixed to the upper end of the mold frame, and the lower end of the mold frame is fixed to the turntable (103). When the motor rotates, the turntable (103) rotates together with the mold frame and the small turntable (107). The turntable mechanism (2) also includes a base plate (201), a rotary joint sleeve (202), a third deep groove ball bearing (203), a rotary joint shaft (204), a first connecting plate (205), a water distributor base plate (206), a water distributor (207), and a connecting rod (208). Several stainless steel water pipes (108) are connected through the inner ring of the first connecting shaft (106). The upper end of each stainless steel water pipe (108) is connected to the water distributor (207). The lower end is connected to a rotary joint shaft (204), the base plate (201) is connected to the rotary joint outer sleeve (202), the inner ring of the rotary joint outer sleeve (202) is equipped with a third deep groove ball bearing (203), the inner ring of the bearing (105) is connected to the rotary joint shaft (204), the rotary joint shaft (204) is fixedly connected to the water distributor base plate (206) through the first connecting plate (205), and the water distributor base plate (206) is fixedly connected to the water distributor (207); A plurality of linear bearings (209) are installed on the bottom plate (206) of the water distributor. A connecting rod (208) is provided inside the linear bearing (209). The lower end of the connecting rod (208) is fixedly installed on the small turntable (107). The upper end of the connecting rod (208) is connected to the nonagonal frame (109). A gas distribution plate (111) is installed on the upper end of the nonagonal frame (109). A solenoid valve (110) is connected to the gas distribution plate (111). The upper end of the gas distribution plate (111) is connected to the lower end of the rotary joint (113) through the second connecting shaft (112). An air pipe (114) is connected to the upper end of the rotary joint (113). The solenoid valve (110) is connected to the cylinder and the gas-liquid booster cylinder on the mold frame through the air pipe. When the first motor (101) rotates, the turntable (103), the water distributor (207), the nonagonal frame (109), the air distribution plate (111), and the mold frame rotate together.

2. The fully automatic high speed shoulder inflating machine of claim 1, wherein, The tube delivery and lifting mechanism (409) includes a tube delivery clamp (401), a hose (402), a finger cylinder (403), a second connecting plate (404), a third connecting plate (405), and a slide module (406). The tube delivery clamp (401) is fixedly connected to the piston rod of the finger cylinder (403). The finger cylinder (403) is mounted on the slide module (406) through the second connecting plate (404) and the third connecting plate (405). A hose (402) is provided below the tube delivery clamp (401).

3. The fully automatic high speed shoulder inflating machine of claim 1, wherein, The extrusion mechanism (5) includes a first vertical plate (506), a second cylinder (507), a sixth connecting plate (508), a third connecting shaft (509), a second vertical plate (510), a bearing seat (511), a fourth connecting shaft (512), a first synchronous pulley (513), a synchronous belt (514), a second synchronous pulley (515), a first reducer (516), a screw (517), a barrel (518), and a third vertical plate (519). The first vertical plate (506) is fixedly installed on the injection base frame (505). The second cylinder (507) is installed on the first vertical plate (506). The second cylinder (507) is connected to the third connecting shaft (509) via the sixth connecting plate (508) and the third connecting shaft (519). 9) Connected to the second vertical plate (510), on which a bearing seat (511) is installed. The inner ring of the bearing seat (511) is connected to the fourth connecting shaft (512). One side of the fourth connecting shaft (512) is connected to the first synchronous pulley (513). The first synchronous pulley (513) is connected to the first reducer (516) and the second motor (525) respectively through the synchronous belt (514) and the second synchronous pulley (515). The other side of the fourth connecting shaft (512) is connected to the screw (517). The outer circle of the screw (517) is connected to the material cylinder (518). The material cylinder (518) is fixedly installed on the third vertical plate (519).

4. The fully automatic high speed shoulder inflating machine of claim 3, wherein The outer ring of the material cylinder (518) is equipped with a first heating ring (520). The hopper (521) is fixedly installed on the third vertical plate (519) through the seventh connecting plate (522). The third vertical plate (519) and the material cylinder (518) are respectively provided with feed inlets at the corresponding connection points with the hopper (521). The second vertical plate (510) is installed on the second guide rail slider (523). The mounting surface on the other side of the second guide rail slider (523) and the third vertical plate (519) are both installed on the panel (524).

5. The fully automatic high speed shoulder inflating machine of claim 4, wherein, The spraying mechanism (6) includes a spraying back plate (601), a second reducer (602), a third motor (603), an eccentric wheel (604), a first deep groove ball bearing (605), a cam (606), a second deep groove ball bearing (607), a first positioning pin (608), and a feed rod adjusting block (609). The spraying back plate (601) is installed on the fourth vertical plate (526) on both sides of the extrusion mechanism (5) through threaded holes on both sides. The back of the spraying back plate (601) The device is equipped with a second reducer (602) and a third motor (603). The output shaft of the second reducer (602) is fixedly connected to an eccentric wheel (604). The outer ring of the eccentric wheel (604) is connected to a first deep groove ball bearing (605). The outer ring of the first deep groove ball bearing (605) is connected to a cam (606). The lower end of the cam (606) is connected to the feed rod adjusting block (609) through a second deep groove ball bearing (607) and a first positioning pin (608).

6. The fully automatic high speed shoulder inflating machine of claim 5, wherein, The spraying mechanism (6) also includes a fifth connecting shaft (610), a second positioning pin (611), a rod nut (612), and a rod (613). A plurality of rod adjusting blocks (609) are installed on the rod adjusting block (609). The rod adjusting block (609) is connected to the rod (613) through the second positioning pin (611) and the rod nut (612). The outer diameter of the rod nut (612) is smaller than the inner diameter of the fifth connecting shaft (610), and the rod (613) is threadedly connected to the rod nut (612).

7. The fully automatic high-speed tube injection machine according to claim 6, characterized in that, A die head (614) is provided below the material rod (613). The inlet on the die head (614) is connected to the outlet on the material cylinder (518). Several positioning shafts (615) are installed on the die head (614). The inner circle of the positioning shaft (615) is connected to the material rod (613). A nozzle (616) and an air cover (617) are installed below the die head (614). The air cover (617) is connected to an air blowing system. Several second heating coils (618) are installed inside the die head (614).

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