Automatic injection molding and discharging device for cushion seat of electric bicycle

Abstract

The utility model relates to an automatic injection molding and blanking device for a cushion seat of an electric bicycle, which comprises an injection molding machine and a mold arranged on the injection molding machine, and further comprises an automatic insert feeding device arranged on one side of the injection molding machine; the three-axis moving device is arranged on the injection molding machine; the mold stripping device is arranged on the three-axis moving device; the insert feeding device is arranged on the three-axis moving device and / or the mold stripping device; the water gap shearing device is arranged on one side of the injection molding machine or the three-axis moving device; the three-axis moving device is used for driving the insert feeding device to install inserts sent out by the automatic insert feeding device into a cavity of a mold and driving the mold stripping device to move the injection-molded cushion base to the outside of the injection molding machine, and a water gap is cut off through the water gap cutting device. According to the device, automatic insertion of an insert, automatic cutting of a water gap and automatic discharging of a cushion seat are achieved, automatic machining is achieved, the mold opening time is short, the scalding risk does not exist, the injection molding efficiency is high, the number of operators is reduced, and safety is improved.

Description

Technical Field

[0001] This utility model relates to a production device for an electric bicycle seat, and more particularly to an automatic injection molding and unloading device for an electric bicycle seat. Background Technology

[0002] The electric bicycle seat consists of a seat base, an elastic layer on the seat base, and leather on top of the elastic layer. The seat base is injection molded, and the elastic layer is secured to the seat base by the leather. The seat base also features a pivot and a locking hook. The pivot connects to the frame, allowing the seat to be opened for easy placement of items into the storage compartments within the frame. The locking hook engages with a lock on the frame, locking the seat in place. Some seat bases also include nuts and / or screws for connecting other components.

[0003] In current injection molding processes, inserts such as shafts, hooks, nuts, and screws are manually inserted into the mold cavity. This means the operator places the shaft into the corresponding cavity while the mold is open, and then closes the mold for injection. This method requires a short wait after mold opening because the temperature is high at the beginning, posing a risk of burns. This results in low overall injection molding efficiency, high labor intensity for operators, and safety hazards.

[0004] In current injection molding processes, after injection molding, the seat cushion is mainly demolded manually by workers. The cushion is removed from the mold, laid flat, and then the sprue is cut off with diagonal pliers before being placed on a transfer device. This method results in a heavy workload for operators, and due to the high temperature of the mold and product, burns are a common risk. To avoid burns, the mold opening time needs to be extended to allow the mold and product temperatures to drop to a suitable level. This leads to lower overall efficiency and also poses a risk of pinching injuries. Utility Model Content

[0005] To solve the above problems, this utility model provides an automatic injection molding and unloading device for the seat of an electric bicycle. The specific technical solution is as follows:

[0006] An automatic injection molding and unloading device for an electric bicycle seat includes an injection molding machine and a mold mounted on the injection molding machine. It further includes: an automatic insert feeding device located on one side of the injection molding machine; a three-axis moving device located on the injection molding machine; a mold ejection device located on the three-axis moving device; an insert loading device located on the three-axis moving device and / or the mold ejection device; and a sprue cutting device located on one side of the injection molding machine or the three-axis moving device. The three-axis moving device is used to drive the insert loading device to install the insert fed by the automatic insert feeding device into the cavity of the mold and to drive the mold ejection device to move the injection-molded seat to the outside of the injection molding machine and cut off the sprue through the sprue cutting device.

[0007] Compared with the prior art, the present invention has the following beneficial effects:

[0008] This utility model provides an automatic injection molding and unloading device for an electric bicycle seat. Through an automatic insert feeding device and an insert loading device, combined with a three-axis moving device, the insert is automatically fed into the mold cavity. Furthermore, through a touch device and a sprue cutting device, in conjunction with the three-axis moving device, the seat is automatically unloaded and the sprue is automatically cut off. This shortens mold opening time, eliminates the risk of burns, effectively improves injection molding efficiency, reduces the labor intensity of operators, and enhances safety. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this application;

[0010] Figure 2 This is a top view of this application;

[0011] Figure 3 This is an assembly diagram of the three-axis moving device, the sprue shearing device, the demolding device, and the insert feeding device.

[0012] Figure 4 This is an assembly diagram of the ejection device and the insert feeding device;

[0013] Figure 5 yes Figure 4 Side view;

[0014] Figure 6 This is a schematic diagram of the rotating shaft feeding device;

[0015] Figure 7 This is a schematic diagram of the structure of the rotating shaft loading seat;

[0016] Figure 8 This is a schematic diagram of the hook-feeding device;

[0017] Figure 9 This is a schematic diagram of the structure of the locking hook loading seat;

[0018] Figure 10 This is a schematic diagram of the automatic feeding device for rotating shafts;

[0019] Figure 11 This is a schematic diagram of the automatic feeding device for the locking hook;

[0020] Figure 12 This is a schematic diagram of the sprue shearing device;

[0021] Figure 13 This is an assembly diagram of the screw feeding device and the nut feeding device;

[0022] Figure 14 yes Figure 13 A bottom view;

[0023] Figure 15 This is a structural schematic diagram of the sealing strip assembly device;

[0024] Figure 16 This is an assembly diagram of the sealing strip feeding device, the sealing strip delivery device, and the sealing strip detection device;

[0025] Figure 17 This is a cross-sectional view of the sealing strip feeding device;

[0026] Figure 18 This is an assembly diagram of the sealing strip delivery device and the sealing strip detection device;

[0027] Figure 19 yes Figure 18 Side view;

[0028] Figure 20 This is a schematic diagram of the structure of the sealing strip delivery device after the sealing strip feeding seat is hidden;

[0029] Figure 21 This is a cross-sectional view of the sealing strip delivery device;

[0030] Figure 22 This is a schematic diagram of the sealing strip pressing device;

[0031] Figure 23 This is a front view of the sealing strip pressing device;

[0032] Figure 24 This is a rear view of the sealing strip pressing device;

[0033] Figure 25 This is an exploded view of the compaction device;

[0034] Figure 26 This is a schematic diagram of the seat cushion conveying device;

[0035] Figure 27This is a front view of the seat cushion delivery device;

[0036] Figure 28 This is a schematic diagram of the material transfer device. Detailed Implementation

[0037] The present invention will now be further described with reference to the accompanying drawings.

[0038] like Figures 1 to 28 As shown, an automatic injection molding and unloading device for an electric bicycle seat includes an injection molding machine 9, a mold, an automatic insert feeding device 40, a three-axis moving device 3, an ejection device, an insert loading device, and a sprue cutting device 5. The mold is mounted on the injection molding machine 9, and a strong magnet for attracting inserts is provided inside the mold cavity. The three-axis moving device 3 is mounted on the top of the injection molding machine 9 and located on one side of the stationary mold. The three-axis moving device 3 is used to achieve movement in the X, Y, and Z directions. The ejection device is mounted on the three-axis moving device 3 and connected to the insert loading device. The sprue cutting device 5 is mounted on the moving base 34 of the three-axis moving device 3 and located outside the injection molding machine 9. The three-axis moving device 3 is used to drive the insert loading device to install the inserts fed by the automatic insert feeding device 40 into the mold cavity, and to drive the ejection device to move the injection-molded seat outside the injection molding machine 9 and cut off the sprue through the sprue cutting device 5.

[0039] like Figures 1 to 3 As shown, the three-axis moving device 3 includes a moving base 34, a first linear moving device 31, a second linear moving device 32, and a third linear moving device 33. The moving base 34 is fixed to the top of the injection molding machine 9 and located on one side of the stationary mold. The first linear moving device 31 is fixed to the moving base 34 and is used for reciprocating movement along the width direction of the injection molding machine 9. The second linear moving device 32 is fixed to the slide of the first linear moving device 31 and is used for reciprocating movement along the length direction of the injection molding machine 9. The third linear moving device 33 is vertically fixed to the slide of the second linear moving device 32 and is used for reciprocating movement along the height direction of the injection molding machine 9. The first linear moving device 31, the second linear moving device 32, and the third linear moving device 33 all adopt a gear and rack combined with a linear guide pair structure, which is a mature existing technology and will not be described in detail here.

[0040] like Figure 4 and Figure 5As shown, the ejection device includes a tilting cylinder 42, an ejection rotary cylinder 48, an ejection base plate 43, an ejection bracket 471, and an ejection suction cup 47. The tilting cylinder 42 is installed at the bottom of the third linear motion device 33 of the three-axis moving device 3. The tilting cylinder 42 is also called a 90-degree rack side posture cylinder and is used to tilt the workpiece by 90 degrees. The tilting table of the tilting cylinder 42 is connected to the ejection rotary cylinder 48, and the rotary table of the ejection rotary cylinder 48 is connected to the ejection base plate 43. The ejection suction cup 47 is symmetrically installed on both sides of the ejection base plate 43 for adsorbing the seat.

[0041] To accommodate seat cushions of different sizes, a width adjustment plate 471 is also included. The width adjustment plate 471 has an oblong width adjustment groove. One end of the width adjustment groove is fixed to the ejector plate 43 by screws, and the other end of the width adjustment groove is connected to the ejector suction cup 47. The ejector suction cup 47 adsorbs the seat cushion by vacuum adsorption.

[0042] The automatic insert feeding device 40 includes an automatic shaft feeding device 41, an automatic hook feeding device 46, an automatic screw feeding device 56, or an automatic nut feeding device 57. The automatic shaft feeding device 41 is used to sequentially feed out shafts; the automatic hook feeding device 46 is used to sequentially feed out hooks; the automatic screw feeding device 56 is used to sequentially feed out screws; and the automatic nut feeding device 57 is used to sequentially feed out nuts. The insert loading device includes an automatic shaft loading device 44, a hook loading device 45, a screw loading device 71, or a nut loading device 72. The automatic shaft loading device 44 is used to insert shafts into the mold cavity; the hook loading device 45 is used to insert hooks into the mold cavity; and the screw loading device 71 and nut loading device 72 are used to insert nuts and screws into the mold cavity, respectively. The automatic feeding device 41 for the rotating shaft, the automatic feeding device 46 for the locking hook, the automatic feeding device 56 for the screw, and the automatic feeding device 57 for the nut correspond one-to-one with the feeding device 44 for the rotating shaft, the feeding device 45 for the locking hook, the feeding device 71 for the screw, and the feeding device 72 for the nut.

[0043] like Figure 6 and 7As shown, the rotating shaft feeding device 44 includes a rotating shaft feeding cylinder 441, a rotating shaft feeding seat 442, and a rotating shaft electromagnet 443. The rotating shaft feeding cylinder 441 is a dual-axis cylinder capable of high-precision feeding. The rotating shaft feeding cylinder 441 is fixed on the demolding base plate 43. The cylinder connecting plate of the rotating shaft feeding cylinder 441 is connected to the rotating shaft feeding seat 442. The top of the rotating shaft feeding seat 442 is provided with a rotating shaft feeding groove 4421, which matches the rotating shaft. The rotating shaft feeding groove 4421 is a semi-circular groove with rounded corners at the top to facilitate the insertion of the rotating shaft into the rotating shaft feeding groove 4421. The rotating shaft electromagnet 443 is installed inside the rotating shaft feeding seat 442 and located below the rotating shaft feeding groove 4421, used to magnetically attract the rotating shaft into the rotating shaft feeding groove 4421. The rotating shaft loading base 442 is made of engineering plastic and does not affect the operation of the rotating shaft electromagnet 443. To facilitate the processing of the rotating shaft loading base 442, it includes a rotating shaft gripping base 4422 and a rotating shaft gripping table 4423. One end of the rotating shaft gripping base 4422 is mounted on the cylinder connecting plate of the rotating shaft loading cylinder 441, and the other end is connected to the bottom of the rotating shaft gripping table 4423. The bottom of the rotating shaft gripping table 4423 is provided with a first magnet groove 4424, and the top of the rotating shaft gripping table 4423 is provided with a rotating shaft loading groove 4421, which is located directly above the first magnet groove 4424. The rotating shaft electromagnet 443 is installed inside the first magnet groove 4424. The rotating shaft gripping table 4423 facilitates the processing of the first magnet groove 4424 and makes it easy to fix the rotating shaft electromagnet 443. To facilitate heat dissipation of the rotating shaft electromagnet 443, the top of the rotating shaft gripping platform 4423 is symmetrically provided with first heat dissipation grooves 4425 on both sides. The first heat dissipation grooves 4425 communicate with the first magnet grooves 4424, allowing the two sides of the rotating shaft electromagnet 443 to be located outside the first magnet grooves 4424 and in direct contact with the external environment, thus effectively dissipating heat. To facilitate the positioning of the rotating shaft gripping base 4422, one end of the rotating shaft gripping base 4422 is provided with a first positioning groove 4426. The first positioning groove 4426 matches the cylinder connecting plate, and the first positioning groove 4426 is inserted into the cylinder connecting plate to achieve precise positioning and facilitate installation.

[0044] like Figure 10As shown, the automatic shaft feeding device 41 includes a first disc vibrating feeder 411, a first vibrator 412, and a first feeding guide rail 413. The first disc vibrating feeder 411 is equipped with a first feeding arm 4111, which is mounted on a first feeding trough 4112. The first feeding trough 4112 is used to sequentially feed the shafts out. The first vibrator 412 is located on one side of the first disc vibrating feeder 411, and the top of the first vibrator 412 is equipped with the first feeding guide rail 413. One end of the first feeding guide rail 413 is located at one end of the first feeding arm 4111. The top of the first feeding guide rail 413 has a first feeding groove 4131 along its length. The first feeding groove 4131 is coaxially aligned with and communicates with the first feeding trough 4112. The discharge end of the first feeding guide rail 413 is also provided with a second feeding trough 4132, which communicates with the first feeding trough 4131, and the width of the second feeding trough 4132 is less than the length of the rotating shaft. The first disc vibrating feeder 411 is an existing mature product. The rotating shafts are first arranged sequentially by the first disc vibrating feeder 411 and then fed out through the first feeding trough 4112. Then, the first vibrator 412 moves the rotating shafts within the first feeding trough 4131 to the end of the first feeding trough 4131 and places them within the second feeding trough 4132.

[0045] To facilitate the processing of the first feed groove 4131, the automatic feed device 41 for rotating shafts also includes a first baffle plate 415. The first baffle plate 415 is fixed to the end of the first feed groove 4131 by screws to block the rotating shaft and keep the rotating shaft inside the first feed groove 4131.

[0046] To avoid continuous operation of the first disc vibrating feeder 411 and the first vibrator 412 and reduce energy consumption, the automatic shaft feeding device 41 also includes a first sensor 416. The first sensor 416 is installed on the first baffle plate 415 and is arranged opposite to the first feeding groove 4131. The first sensor 416 can be a photoelectric sensor. The first sensor 416 is used to detect the shaft in the first feeding groove 4131. When the shaft is detected, a signal is sent to stop the first disc vibrating feeder 411 and the first vibrator 412. When no shaft is detected, the first disc vibrating feeder 411 and the first vibrator 412 are started so that the shaft enters the second feeding groove 4132.

[0047] During shaft feeding, the first disc vibrating feeder 411 first feeds the shaft sequentially into the first delivery slot 4131 of the first delivery guide rail 413, while the first vibrator 412 causes the shaft to enter the second feeding slot 4132. The three-axis moving device 3 moves the shaft feeding cylinder 441 above the first delivery guide rail 413. Then, the tilting cylinder 42 drives the mold plate 43 to tilt from a vertical state to a horizontal state, and the shaft feeding cylinder 441 changes from a horizontal state to a vertical state. The shaft gripping and releasing platform 4423 is positioned above the first delivery guide rail 413. Then, the three-axis moving device 3 aligns the shaft feeding slot 4421 with the shaft in the first delivery slot 4131, and then drives the shaft gripping and releasing platform 4423 to descend above the shaft so that the shaft enters the shaft feeding slot 4421. Next, the shaft electromagnet 443 is activated, and the shaft electromagnet 443 uses magnetic force to attract the shaft to the rotating plate. The material is fed into the shaft loading slot 4421. Then, the three-axis moving device 3 drives the mold ejector plate 43 upward to the flipping height and activates the flipping cylinder 42 to restore the mold ejector plate 43 from the horizontal state to the vertical state. The rotating shaft loading cylinder 441 flips to the horizontal state. The three-axis moving device 3 moves the rotating shaft loading cylinder 441 to one side of the mold cavity and aligns the rotating shaft with the first insert slot in the cavity. Then, the three-axis moving device 3 drives the rotating shaft to move into the first insert slot. Then, the rotating shaft electromagnet 443 is turned off. Under the action of the magnet in the first insert slot, the rotating shaft is attracted into the first insert slot, completing the installation of the rotating shaft. Then, the three-axis moving rotating shaft drives the mold ejector plate 43 and the rotating shaft loading cylinder 441 to move above the first delivery guide rail 413 to continue gripping the material, preparing for the installation of the next rotating shaft. After the seat is removed, the rotating shaft can be installed, shortening the waiting time and improving the overall efficiency of injection molding.

[0048] The tilting cylinder 42 rotates 90 degrees. When the tilting cylinder 42 is in its initial position, the ejector plate 43 is in a vertical state, and the ejector plate 43 is positioned opposite the mold, allowing the rotating shaft to be inserted into the mold. After the tilting cylinder 42 rotates 90 degrees, the ejector plate 43 is in a horizontal state, and the rotating shaft loading seat 442 is positioned above the first feeding groove 4131 and opposite to the second feeding groove 4132, so as to grab the rotating shaft from the second feeding groove 4132. This avoids interference between the gripping and releasing device and the first feeding guide rail 413 when the ejector plate 43 is in a vertical state, providing stability and reliability for loading. Alternatively, the tilting cylinder 42 can be deactivated during rotating shaft loading, and the rotating shaft can be grabbed from one side of the second feeding groove 4132.

[0049] like Figure 11As shown, the automatic hook feeding device 46 includes a second disc vibrating feeder 461, a second vibrator 464, and a second feed guide rail 463. The second disc vibrating feeder 461 is equipped with a second feeding arm 4611, and a second feeding groove 4612 is provided on the second feeding arm 4611 for sequentially feeding the hooks. The second vibrator 464 is located on one side of the second disc vibrating feeder 461, and the second feed guide rail 463 is mounted on the top of the second vibrator 464. One end of the second feed guide rail 463 is located at one end of the second feeding arm 4611, and a second feed slot 4631 is provided along the length of the top of the second feed guide rail 463. The second feed slot 4631 and the second feeding groove 4612 are coaxially aligned and communicate with each other. The second disc vibrating feeder 461 is an existing, mature product. First, the locking hooks are arranged sequentially by the second disc vibrating feeder 461 and then fed out through the second feeding trough 4612. Then, the locking hooks are moved to the end of the second feeding trough 4631 by the second vibrator 464.

[0050] To facilitate the processing of the second feeding slot 4631, the automatic feeding device 46 for the locking hook also includes a second baffle plate 465, which is fixed to the end of the second feeding slot 4631 by screws and is used to position the locking hook.

[0051] To prevent the second disc vibrating feeder 461 and the second vibrator 464 from operating continuously and to reduce energy consumption, the automatic hook feeding device 46 also includes a second sensor 466. The second sensor 466 is installed on the second baffle plate 465 and is positioned opposite to the second feed slot 4631. The second sensor 466 can be a photoelectric sensor. The second sensor 466 is used to detect the hooks in the second feed slot 4631. When a hook is detected, a signal is sent to stop the second disc vibrating feeder 461 and the second vibrator 464 from operating. When no hook is detected, the second disc vibrating feeder 461 and the second vibrator 464 are started.

[0052] like Figure 8 and Figure 9As shown, the hook feeding device 45 includes a hook feeding cylinder 451, a hook feeding seat 452, and a hook electromagnet 453. The hook feeding cylinder 451 is a dual-axis cylinder capable of high-precision feeding. The hook feeding cylinder 451 is fixed on the demolding base plate 43. The cylinder connecting plate of the hook feeding cylinder 451 is connected to the hook feeding seat 452. The top of the hook feeding seat 452 is provided with a hook feeding groove 4522, which matches the hook. The hook electromagnet 453 is installed inside the hook feeding seat 452 and located below the hook feeding groove 4522, used to magnetically attract the hook into the hook feeding groove 4522. The hook feeding seat 452 is made of engineering plastic and does not affect the operation of the hook electromagnet 453. To facilitate the machining of the hook loading base 452, the hook loading base 452 includes a hook gripping base 4526 and a hook gripping platform 4521. One end of the hook gripping base 4526 is mounted on the cylinder connecting plate of the hook loading cylinder 451, and the other end is connected to the bottom of the hook gripping platform 4521. The bottom of the hook gripping platform 4521 is provided with two second magnet slots 4523, and the top of the hook gripping platform 4521 is provided with two hook loading slots 4522, which are located directly above the second magnet slots 4523. The hook electromagnet 453 is installed in the second magnet slots 4523. The hook gripping platform 4521 facilitates the machining of the second magnet slots 4523 and makes it easy to fix the hook electromagnet 453. To facilitate heat dissipation of the locking hook electromagnet 453, the top of the locking hook gripping platform 4521 is symmetrically provided with second heat dissipation grooves 4524 on both sides. The second heat dissipation grooves 4524 are connected to the second magnet groove 4523. The side of the locking hook electromagnet 453 can be located outside the second magnet groove 4523 and directly contact the external environment, which can effectively dissipate heat.

[0053] When the lock hooks are being fed, the second disc vibrating feeder 461 first feeds the lock hooks sequentially into the second delivery slot 4631 of the second delivery guide rail 463. The second vibrator 464 then moves the lock hooks into the second loading slot 4132. The three-axis moving device 3 moves the lock hook loading cylinder 451 above the second delivery guide rail 463. Then, the tilting cylinder 42 rotates the mold plate 43 from a vertical to a horizontal position, and the lock hook loading cylinder 451 changes from a horizontal to a vertical position. The lock hook gripping and releasing platform 4521 is positioned above the second delivery guide rail 463. The three-axis moving device 3 then aligns the lock hook loading slot 4522 with the lock hooks in the second delivery slot 4631, and then lowers the lock hook gripping and releasing platform 4521 above the lock hooks so that the lock hooks enter the lock hook loading slot 4522. Next, the lock hook electromagnet 453 is activated, and the electromagnet 453 magnetically attracts the lock hooks to the lock hooks. The material is loaded into the material slot 4522. Then, the three-axis moving device 3 drives the mold plate 43 to move upward to the flipping height and activates the flipping cylinder 42 to restore the mold plate 43 from the horizontal state to the vertical state. The locking hook loading cylinder 451 flips to the horizontal state. The three-axis moving device 3 moves the locking hook loading cylinder 451 to one side of the mold cavity and aligns the locking hook with the second insert slot in the cavity. Then, the three-axis moving device 3 drives the locking hook to move into the second insert slot. Then, the locking hook electromagnet 453 is turned off. Under the action of the magnet in the second insert slot, the locking hook is attracted into the second insert slot, completing the installation of the locking hook. Then, the three-axis moving locking hook drives the mold plate 43 and the locking hook loading cylinder 451 to move above the second delivery guide rail 463 to continue grabbing material, preparing for the installation of the next locking hook. After the seat is removed, the locking hook can be installed, shortening the waiting time and improving the overall efficiency of injection molding.

[0054] The rotating shaft feeding cylinder 441 and the locking hook feeding cylinder 451 are placed alternately on the mold ejection plate 43, without affecting each other's operation, and are switched by the mold ejection rotation cylinder 48.

[0055] The automatic screw feeding device 56 and the automatic nut feeding device 57 have similar structures to the hook feeding device 45 and the rotating shaft feeding device 44. They all include a disc vibrating feeder and a vibrator, which are existing mature products and will not be described in detail here.

[0056] like Figure 13 and Figure 14As shown, the screw feeding device 71 and the nut feeding device 72 have the same structure and are existing mature products, so they will not be described in detail here. The screw feeding device 71 and the nut feeding device 72 are installed alternately on both sides of the feeding base plate 74. The feeding base plate 74 is installed on the hollow rotating platform 75, which is installed on the feeding rack 76. The feeding rack 76 is installed at the bottom of the third linear moving device 33. Two third linear moving devices 33 can be provided. One third linear moving device 33 is connected to the tilting cylinder 42, and the other third linear moving device 33 is connected to the feeding rack 76. A camera 73 can also be installed on the feeding base plate 74. The camera 73 takes a picture after the nut or screw is inserted into the mold cavity to determine whether the screw or nut is installed in place.

[0057] like Figure 12 As shown, the sprue shearing device 5 includes a pneumatic shear 51 and a shearing rotary cylinder 52. The shearing rotary cylinder 52 is mounted on a movable base 34, and its rotating platform is connected to the pneumatic shear 51. When the pneumatic shear 51 starts working, the shearing rotary cylinder 52 is activated to make the pneumatic shear 51 rotate synchronously, realizing the rotary shearing of the sprue, which can effectively reduce the burrs on the cut surface and improve the quality of the cut surface.

[0058] To improve versatility and adapt to various sizes of seat cushions, the sprue cutting device 5 also includes a cutting adjustment seat 531 and a cutting connecting seat 532. The cutting adjustment seat 531 is mounted on the turntable of the cutting rotary cylinder and is provided with a U-shaped cutting adjustment groove. The cutting connecting seat 532 is movably inserted into the cutting adjustment groove. The cutting adjustment seat 531 is connected to the cutting connecting seat 532 by screws, and the cutting connecting seat 532 is clamped by screws to adjust the angle of the pneumatic shears 51.

[0059] To facilitate the position adjustment of the sprue shearing device 5, the sprue shearing device 5 also includes a shearing seat 55 and a shearing rod 54. The shearing seat 55 is mounted on the movable base 34 and connected to one end of the shearing rod 54. The other end of the shearing rod 54 is connected to the shearing rotary cylinder 52. The shearing rod 54 is an aluminum profile rod, which facilitates position adjustment.

[0060] The three-axis moving device 3 drives the ejection suction cup 47 to move between the ejection station, the sprue cutting station, and the material discharge station. The flipping cylinder 42 is used to flip the seat from a vertical position to a horizontal position, so that the seat can be placed smoothly on the waiting plate 613, preventing the seat from falling over and effectively protecting the seat. When the seat moves to the sprue cutting device 5, the ejection rotation cylinder 48 drives the seat to rotate 180 degrees, so that the sprue and the sprue cutting device 5 are positioned opposite each other, so that the sprue cutting device 5 can cut the sprue, thereby realizing automatic ejection of the seat and cutting of the sprue. No manual ejection is required, the ejection waiting time is short, and the labor intensity is reduced.

[0061] Automatic sprue cutting reduces reliance on manual labor, lowers errors and rework costs caused by manual operation, reduces workers' direct contact with sharp tools and thermoplastic materials, and lowers the probability of workplace accidents.

[0062] To further improve efficiency, reduce labor, and lower costs, an automatic injection molding and unloading device for an electric bicycle seat also includes a seat conveying device 6 and a sealing strip assembly device 1. The seat conveying device 6 is located on one side of the injection molding machine 9 and is used to convey the injection-molded seat. The sealing strip assembly device 1 is located on one side of the seat conveying device 6 and is used to press the sealing strip into the sealing groove of the seat.

[0063] like Figures 26 to 28 As shown, the cushion conveying device 6 includes a cushion transfer device 61 and a cushion delivery device 62. The cushion transfer device 61 is used to move the cushion into the working range of the sealing strip pressing device. The cushion delivery device 62 is located on one side of the cushion transfer device 61 and is used to move the cushion from the cushion transfer device 61 to the cushion delivery device 62 and deliver it to the transfer device.

[0064] The cushion transfer device 61 includes a waiting rack 611, a waiting slide plate 612, a waiting plate 613, and a waiting cylinder 614. The waiting slide plate 612 is slidably mounted on the top of the waiting rack 611 via a linear guide pair. The waiting cylinder 614 is fixed on the waiting rack 611 and connected to the waiting slide plate 612, used to drive the waiting slide plate 612 to reciprocate between the two ends of the waiting rack 611. The waiting plate 613 is fixed on the waiting slide plate 612 and is provided with a cushion groove that matches the cushion seat.

[0065] The cushion delivery device 62 includes a conveyor line 621, a conveyor frame 622, and a transfer device 623. The conveyor line 621 is a belt conveyor line located at one end of the waiting rack 611 and at the same height as the waiting slide plate 612. The conveyor frame 622 is installed on top of the conveyor line 621. The transfer device 623 is located on the conveyor frame 622 and is used to move the cushion from the cushion transfer device 61 to the conveyor line 621. The transfer device 623 includes a transfer slide plate 6231, a transfer drive assembly, a transfer rod 6233, a transfer cylinder 6234, a transfer plate 6235, and a transfer suction cup 6236. The transfer slide plate 6231 is slidably mounted on the top of the conveyor frame 622 via a linear guide pair. One end of the transfer rod 6233 is fixed to the transfer slide plate 6231, and the other end is suspended above the conveyor frame 622 and connected to the transfer cylinder 6234. The transfer cylinder 6234 is a dual-shaft cylinder and is connected to the transfer plate 6235. Several transfer suction cups 6236 are mounted on the transfer plate 6235. The transfer suction cups 6236 are vacuum suction cups used to adsorb the seat cushion. The moving drive assembly includes a transfer motor 6238, a transfer gear, and a transfer rack 6239. The transfer motor 6238 is fixed to the top of the transfer slide plate 6231 and connected to the transfer gear. The transfer gear meshes with the transfer rack 6239, which is fixed to the top of the conveyor frame 622.

[0066] like Figures 15 to 25 As shown, the sealing strip pressing device includes a sealing strip feeding device 11, a sealing strip delivery device 12, a sealing strip detection device 13, a robotic arm 21, and a sealing strip pressing device. The sealing strip feeding device 11 is located on one side of the injection molding machine 9 and is used to store coiled sealing strips. The sealing strip delivery device 12 is located on one side of the sealing strip feeding device 11 and is used to deliver the sealing strip. The sealing strip detection device 13 is located on the sealing strip delivery device 12 and is used to control the sealing strip delivery device 12 and the sealing strip feeding device 11. When the sealing strip delivery device 12 delivers the sealing strip, the sealing strip feeding device 11 rotates so that the sealing strip enters from below the sealing strip delivery device 12. The robotic arm 21 is located on one side of the sealing strip delivery device 12. The sealing strip pressing device is located on the robotic arm 21 and is used to press the sealing strip into the sealing groove of the seat.

[0067] The sealing strip feeding device 11 is used to store and rotate the sealing strip so that it enters from below the sealing strip feeding device 12, reducing the twisting of the sealing strip and the force required by the sealing strip feeding device 12 to pull the sealing strip, ensuring smooth feeding and preventing the sealing strip from getting stuck in the sealing strip feeding device 11. When the rear sealing strip pressing device is working, the sealing strip between the sealing strip pressing device and the sealing strip detection device 13 will be in a straightened state. The sealing strip can trigger the sealing strip detection device 13, which sends a start signal to the sealing strip feeding device 11 and the sealing strip feeding device 12. The sealing strip feeding device 11 and the sealing strip feeding device 12 then start feeding, realizing automatic control of feeding and stopping.

[0068] like Figure 16 and Figure 17 As shown, the sealing strip feeding device 11 includes a sealing strip feeding cylinder 111, a sealing strip rotating device 112, and a sealing strip storage cylinder 113. The sealing strip rotating device 112 is installed at the bottom of the sealing strip feeding cylinder 111 and connected to the sealing strip storage cylinder 113. The sealing strip storage cylinder 113 is movably located inside the sealing strip feeding cylinder 111. The sealing strip rotating device 112 drives the sealing strip storage cylinder 113 to rotate. The sealing strip feeding cylinder 111 protects the internal sealing strip storage cylinder 113, improving safety. Specifically, the sealing strip rotating device 112 includes a first hollow rotating platform 1121 and a first rotating disk 1122. The first hollow rotating platform 1121 is an existing mature product and will not be described in detail here. The first hollow rotating platform 1121 is installed at the bottom of the sealing strip feeding cylinder 111, and the top turntable is connected to the first rotating disk 1122. The top of the first rotating disk 1122 is equipped with a sealing strip storage cylinder 113. The sealing strip storage cylinder 113 is a conical cylinder, that is, the top opening is large and the bottom is small, which avoids the sealing strip getting stuck in the sealing strip storage cylinder 113 and also facilitates the insertion of the sealing strip.

[0069] To prevent the sealing strip from hardening due to low ambient temperature, the sealing strip feeding device 11 also includes a heating element 114. The heating element 114 is installed inside the sealing strip feeding cylinder 111, located above the sealing strip storage cylinder 113. The heating element 114 is used to heat the sealing strip, making it soft and facilitating feeding and pressing. The heating element 114 can be an electric heating tube, electric heating wire, etc.

[0070] like Figures 18 to 20As shown, the sealing strip feeding device 12 includes a sealing strip feeding rod 129, a sealing strip feeding seat 121, a sealing strip feeding motor 122, a sealing strip active feeding roller 123, and a sealing strip driven feeding roller 124. One end of the sealing strip feeding rod 129 is fixed to the top of the sealing strip feeding cylinder 111, and the other end is connected to the sealing strip feeding seat 121. The sealing strip feeding seat 121 has a sealing strip inlet 1211 and a sealing strip outlet 1212 symmetrically arranged on both sides. The sealing strip feeding seat 121 has a sealing strip feeding cavity 1213 inside, which communicates with the sealing strip inlet 1211 and the sealing strip outlet 1212. The sealing strip feeding motor 122 is installed on one side of the sealing strip feeding seat 121 and connected to the sealing strip active feeding roller 123. The sealing strip active feeding roller 123 is located inside the sealing strip feeding chamber 1213. The sealing strip active feeding roller 123 is provided with an annular first feeding groove 41121231. The first feeding groove 41121231 matches the sealing strip and is used to control the direction of the sealing strip so that the sealing strip is fed in a set manner, which facilitates subsequent pressing. The first feeding groove 41121231 can also increase... The larger contact area with the sealing strip increases friction. The driven feeding roller 124 and the active feeding roller 123 are positioned opposite each other, with the driven feeding roller 124 rotatably mounted inside the sealing strip feeding chamber 1213. The sealing strip is located between the active feeding roller 123 and the driven feeding roller 124. The active feeding roller 123 and the driven feeding roller 124 pull the sealing strip through friction, causing it to be fed out of the sealing strip storage cylinder 113. The sealing strip feeding device 12 solves the problem of high requirements on the robotic arm 21 caused by the sealing strip pressing device extracting the sealing strip. The robotic arm 21 only needs to drive the sealing strip pressing device to press the density strip into the sealing groove of the seat cushion, greatly reducing the force on the robotic arm 21, lowering its cost, and simplifying its control.

[0071] In order to further increase the friction between the active feeding roller 123 and the sealing strip, the outer circular surface of the active feeding roller 123 is provided with a plurality of first feeding teeth 1232. The first feeding teeth 1232 are also located on both sides of the first feeding groove 41121231. The first feeding teeth 1232 can increase the friction between the active feeding roller 123 and the sealing strip.

[0072] To facilitate the adjustment of the friction between the sealing strip active feeding roller 123 and the sealing strip driven feeding roller 124 and the sealing strip, the sealing strip feeding device 12 further includes a friction adjustment device. The friction adjustment device is connected to the sealing strip driven feeding roller 124 and is used to adjust the distance between the sealing strip driven feeding roller 124 and the sealing strip active feeding roller 123, so as to achieve the adjustment of the friction with the sealing strip. Specifically, the friction adjustment device includes a tensioning shaft 125, a tensioning seat 126, and a tensioning screw. The tensioning shaft 125 is rotatably connected to the driven feeding roller 124 of the sealing strip, and its two ends are movably inserted into the first lifting groove 1214 at the bottom of the sealing strip feeding seat 121. The first lifting groove 1214 communicates with the sealing strip feeding chamber 1213. The tensioning seat 126 is symmetrically installed on both sides of the sealing strip feeding seat 121. The tensioning screw is movably inserted into the tensioning seat 126 and is threadedly connected to both ends of the tensioning shaft 125. Rotating the tensioning screw can adjust the distance between the driven feeding roller 124 and the active feeding roller 123 of the sealing strip, thereby realizing the adjustment of the friction between the active feeding roller 123 and the driven feeding roller 124 of the sealing strip and the sealing strip.

[0073] The sealing strip detection device 13 includes a sealing strip detection plate 131 and a micro switch 132. The sealing strip detection plate 131 is fixed on the sealing strip feeding seat 121 and connected to the micro switch 132. The micro switch 132 is also located on one side of the sealing strip outlet 1212. In the free state, the sealing strip bends downward due to gravity, and the micro switch 132 is in the closed state. When the sealing strip pressing device works, the sealing strip is straightened by the sealing strip, and the sealing strip pushes the micro switch 132, putting the micro switch 132 into the conducting state. The sealing strip feeding device 11 and the sealing strip delivery device 12 start to deliver the sealing strip. When the sealing strip pressing device stops pressing the sealing strip, the sealing strip leaves the micro switch 132 again, and the sealing strip feeding device 11 and the sealing strip delivery device 12 stop. The sealing strip detection device 13 realizes automatic feeding.

[0074] The sealing strip is fed out by the sealing strip feeding device 11 and the sealing strip delivery device 12, which effectively avoids the sealing strip getting tangled, makes the sealing strip feeding smooth, ensures the normal operation of the sealing strip pressing device, realizes continuous operation, reduces the requirements on the robotic arm 21, reduces costs, and makes the control of the robotic arm 21 simpler.

[0075] like Figures 22 to 25As shown, the sealing strip pressing device includes a pressing base plate 22, a pressing guide device 23, a pressing feeding device 24, a pressing discharge component 25, a pressing cutting device 26, and a compaction device 27. One end of the pressing base plate 22 is connected to the robotic arm 21 via a base plate connecting seat 221. The pressing guide device 23 and the compaction device 27 are located at opposite ends of the pressing base plate 22, with the pressing guide device 23 positioned below the base plate connecting seat 221. The pressing guide device 23, the pressing feeding device 24, the pressing discharge component 25, and the compaction device 27 are arranged sequentially. The pressing discharge component 25 is provided with a discharge groove 251 and a cutting groove 252. The discharge groove 251 matches the sealing strip and is arranged along the length of the pressing discharge component 25, and is a through groove. The discharge groove 251 communicates with the cutting groove 252. The compaction device 27 is used to press the sealing strip into the sealing groove of the seat cushion.

[0076] The pressing feeding device 24 drives the sealing strip to move, the pressing guide device 23 sends the sealing strip into the pressing discharge part 25 in a set posture, and releases it into the sealing groove through the pressing discharge part 25. Then, the robotic arm 21 drives the compaction device 27 to press the sealing strip into the sealing groove, and the pressing cutting device 26 cuts the sealing strip according to the set length, thus completing the automatic installation of the sealing strip of the seat cushion.

[0077] The pressing guide device 23 includes an inlet sleeve 231 and a guide sleeve 232, both mounted on the pressing base plate 22. The inlet sleeve 231 has an inlet hole 2311 at its center, and the end of the inlet hole 2311 is arc-shaped to facilitate the entry of the sealing strip. The guide sleeve 232 is located at the outlet end of the inlet sleeve 231, and the guide sleeve 232 has a guide hole 2321. The guide hole 2321 matches the cross-section of the sealing strip so that the sealing strip is delivered in a set direction. The inlet sleeve 231 allows the sealing strip to enter the guide hole 2321 in a horizontal state, so that the sealing strip can smoothly enter the guide hole 2321.

[0078] The pressing and feeding device 24 includes an active feeding assembly 241 and a driven feeding assembly 242, both mounted on the pressing base plate 22. The driven feeding assembly 242 is disposed opposite to the active feeding assembly 241, and both the active feeding assembly 241 and the driven feeding assembly 242 are located between the pressing guide device 23 and the pressing discharge member 25. Specifically, the active feeding assembly 241 includes an active feeding roller 2418, a feeding transmission unit, and a feeding motor 2411. The active feeding shaft of the active feeding roller 2418 is rotatably mounted on the pressing base plate 22 via bearings and is located on the first mounting surface 222 of the pressing base plate 22. The feeding motor 2411 is mounted on the second mounting surface 223 of the pressing base plate 22 and is connected to the active feeding roller 2418 via the feeding transmission unit. The feeding transmission unit includes a feeding drive pulley 2412, a first connecting shaft, a first driven pulley 2414, a second driven pulley 2415, a third driven pulley 2416, a first synchronous belt 2413, and a second synchronous belt 2417. The feeding drive pulley 2412 is mounted on the feeding motor 2411 and is located on the first mounting surface 222. The first connecting shaft is rotatably mounted on the pressing base plate 22 via bearings, and its two ends are respectively located on the first mounting surface 222 and the second mounting surface 223 of the pressing base plate 22. The first driven pulley 2414 is mounted on the first connecting shaft. One end of the first connecting shaft is located on one side of the first mounting surface 222, and the first driven pulley 2414 is also located on one side of the feeding drive pulley 2412; the second driven pulley 2415 is located at the other end of the first connecting shaft and on one side of the second mounting surface 223; the third driven pulley 2416 is connected to the feeding drive shaft and is arranged opposite to the second driven pulley 2415; the first synchronous belt 2413 is sleeved on the feeding drive pulley 2412 and the first driven pulley 2414; the second synchronous belt 2417 is sleeved on the second driven pulley 2415 and the third driven pulley 2416. The feeding transmission unit positions the feeding motor 2411 on the second mounting surface 223 and above the feeding drive roller 2418 to avoid interference between the feeding motor 2411 and the seat. The driven feeding assembly 242 includes a driven feeding roller 2421 and a feeding clamping cylinder 2422. The feeding clamping cylinder 2422 is fixed on the first mounting surface 222 of the pressing substrate 22. The driven feeding roller 2421 is mounted on the feeding clamping cylinder 2422 via a U-shaped roller frame 2423, and the driven feeding roller 2421 is arranged opposite to the active feeding roller 2418. The feeding motor 2411 drives the active feeding roller 2418 to rotate. The active feeding roller 2418 and the driven feeding roller 2421 together drive the sealing strip to move, realizing the feeding of the sealing strip. The feeding clamping cylinder 2422 can facilitate the insertion of the sealing strip between the active feeding roller 2418 and the driven feeding roller 2421 and into the pressing and discharging component 25, and facilitates the adjustment of the clamping pressure of the sealing strip.

[0079] The pressing-in cutting device 26 includes a pressing-in cutting cylinder 261, a pressing-in cutting seat 262, and a pressing-in cutter 263. The pressing-in cutting cylinder 261 is fixed on the first mounting surface 222 of the pressing base plate 22 and connected to the pressing-in cutting seat 262. The pressing-in cutting seat 262 is slidably mounted on the first mounting surface 222 of the pressing base plate 22 via a linear guide pair. One end of the pressing-in cutting seat 262 is equipped with the pressing-in cutter 263, which is movably inserted into the cutting groove 252. The cylinder drives the pressing-in cutter 263 to cut the sealing strip pressed into the discharge part 25.

[0080] To facilitate the insertion of the sealing strip into the sealing groove, the discharge end of the pressing and discharging component 25 is also provided with a pressing inclined surface 253. The pressing inclined surface 253 allows the sealing strip to be easily inserted into the top of the sealing groove, making it easier for the compaction device 27 to press the sealing strip into the sealing groove.

[0081] The compaction device 27 includes a compaction motor 271 and a compaction roller 275. The compaction motor 271 is fixed on the second mounting surface 223 of the pressing substrate 22 and is connected to the compaction roller 275. The compaction roller 275 is located at the discharge end of the pressing discharge component 25.

[0082] To avoid interference between the compaction motor 271 and the seat cushion, the compaction device 27 also includes a compaction transmission unit, which is mounted on the pressing base plate 22 and connected to the compaction motor 271 and the compaction roller 275 respectively. The compaction transmission unit includes a compaction plate 272, a compaction drive wheel 273, a compaction driven wheel 274, and a compaction cover 276. The compaction plate 272 is fixed on the pressing base plate 22 and connected to the compaction motor 271 and the compaction drive wheel 273. The compaction driven wheel 274 is rotatably mounted on the compaction plate 272 and presses against the compaction drive wheel 273 and the compaction roller 275, respectively. Both the compaction drive wheel 273 and the compaction driven wheel 274 are elastic wheels that drive each other through friction. The compaction driven wheel 274 also drives the compaction roller 275 to rotate through friction. The elastic wheels can achieve transmission and slip under large resistance, improving safety and preventing the compaction roller 275 from causing the sealing strip to move. The compaction cover 276 is fixed on the compaction plate 272.

[0083] The robotic arm 21 moves the compaction roller 275 to the top of the sealing groove of the seat cushion and maintains a certain distance. Then, the feeding motor 2411 starts and drives the sealing strip to be sent out from the end of the pressing and discharging part 25. The sealing strip enters the top of the sealing groove. Then, the robotic arm 21 drives the compaction roller 275 to press the sealing strip into the sealing groove. The robotic arm 21 drives the compaction roller 275 to press the sealing strip into the annular sealing groove of the seat cushion in sequence. When the sealing strip is almost pressed in, the pressing and cutting cylinder 261 starts and drives the pressing cutter 263 to cut the sealing strip.

[0084] Taking automatic injection molding of a rotating shaft as an example:

[0085] Before mold opening, the three-axis moving device 3 drives the rotating shaft feeding device 44 to the first delivery guide rail 413. Then, the flipping cylinder 42 drives the rotating shaft feeding device 44 to flip to a horizontal state. The three-axis moving device 3 moves the rotating shaft feeding groove 4421 to the top of the rotating shaft located in the second feeding groove 4132. Then, the rotating shaft electromagnet 443 attracts the rotating shaft and moves it to one side of the injection molding machine 9. The flipping cylinder 42 drives the rotating shaft feeding device 44 to reset to a vertical state.

[0086] After mold opening, the three-axis moving device 3 moves the ejector plate 43 and ejector suction cup 47 to one side of the injection-molded seat. Then, the ejector suction cup 47 vacuum-adheres the seat. The three-axis moving device 3 then moves the seat to one side of the sprue cutting device 5. The ejector rotary cylinder 48 rotates the seat 180 degrees, positioning it opposite the pneumatic sprue cutter 51. The three-axis moving device 3 then moves the seat toward the pneumatic sprue cutter 51, allowing the sprue to be inserted into the pneumatic sprue cutter 51. Then, the pneumatic shears 51 and the shearing rotary cylinder 52 are activated to rotate and shear the sprue. After the sprue is cut, the three-axis moving device 3 moves the seat to the top of the waiting plate 613. The demolding rotary cylinder 48 rotates 180 degrees to reset the seat. Then, the flipping cylinder 42 drives the seat to flip from the vertical state to the horizontal state so that the outer shell of the seat faces the seat groove of the waiting plate 613. Then, the three-axis moving device 3 drives the seat to descend into the seat groove and release the seat. At this time, the waiting cylinder 614 is in the retracted state, and the waiting plate 613 is located at one end of the waiting rack 611. Then, the waiting cylinder 614 is activated, which moves the waiting plate 613 to the other end of the waiting rack 611. Then, the sealing strip pressing device presses the sealing strip into the sealing groove of the seat cushion. After the sealing strip is installed on the seat cushion, the transfer motor 6238 drives the transfer slide plate 6231 to move towards the waiting plate 613 through the transfer gear and the transfer rack 6239 so that the transfer suction cup 6231 can move towards the waiting plate 613. 236 moves above the seat, and then the transfer cylinder 6234 drives the transfer suction cup 6236 to descend onto the seat. The transfer suction cup 6236 sucks onto the seat. Then the transfer cylinder 6234 retracts, and the transfer motor 6238 rotates in the opposite direction to move the seat above the conveyor line 621. Then the transfer cylinder 6234 drives the seat to descend onto the conveyor line 621 and releases the seat. The seat moves onto the transfer device under the drive of the conveyor line 621, and the transfer device sends the seat to the warehouse.

[0087] When the sealing strip is pressed in, the three-axis moving device 3 drives the rotating shaft feeding device 44 to move to the cavity of the mold and insert the rotating shaft into the mold. Then, it drives the rotating shaft feeding device 44 to move to the second feeding groove 4132 of the rotating shaft automatic feeding device 41 to pick up the rotating shaft and prepare for the next injection molding.

[0088] The workflow for the remaining inserts is the same, which can effectively shorten the waiting time and eliminate the need for manual operation, enabling automatic injection molding and unloading, reducing the number of operators and lowering costs.

[0089] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.

Claims

1. An automatic injection molding and unloading device for an electric bicycle seat, comprising an injection molding machine (9) and a mold mounted on the injection molding machine (9), characterized in that, Also includes: An automatic insert feeding device (40) is located on one side of the injection molding machine (9); A three-axis moving device (3) is mounted on the injection molding machine (9); The demolding device is mounted on the three-axis moving device (3); An insert feeding device is provided on the three-axis moving device (3) and / or the demolding device; as well as A sprue shearing device (5) is provided on one side of the injection molding machine (9) or the three-axis moving device (3); The three-axis moving device (3) is used to drive the insert feeding device to install the insert sent by the automatic insert feeding device (40) into the cavity of the mold and to drive the ejection device to move the injection molded seat to the outside of the injection molding machine (9) and cut off the sprue through the sprue cutting device (5).

2. The automatic injection molding and unloading device for an electric bicycle seat according to claim 1, characterized in that, The automatic insert feeding device (40) includes any one or more of the following: automatic shaft feeding device (41), automatic hook feeding device (46), automatic screw feeding device (56), or automatic nut feeding device (57); The insert feeding device includes any one or more of the following: a rotating shaft feeding device (44), a locking hook feeding device (45), a screw feeding device (71), or a nut feeding device (72); Among them, the automatic feeding device for the rotating shaft (41), the automatic feeding device for the locking hook (46), the automatic feeding device for the screw (56), and the automatic feeding device for the nut (57) correspond one-to-one with the feeding device for the rotating shaft (44), the feeding device for the locking hook (45), the feeding device for the screw (71), and the feeding device for the nut (72).

3. The automatic injection molding and unloading device for an electric bicycle seat according to claim 2, characterized in that, The demolding device includes: A tilting cylinder (42) is mounted on the three-axis moving device (3); A mold ejection rotary cylinder (48) is mounted on the tilting cylinder (42); A demolding base plate (43) is mounted on the demolding rotary cylinder (48), and the locking hook feeding device (45) and the rotating shaft feeding device (44) are respectively located on both sides of the demolding base plate (43); and The ejection suction cup (47) is disposed on the ejection substrate (43).

4. The automatic injection molding and unloading device for an electric bicycle seat according to claim 3, characterized in that, The rotating shaft feeding device (44) includes: A rotating shaft feeding cylinder (441) is mounted on the ejector plate (43); A rotating shaft loading seat (442) is provided on the rotating shaft loading cylinder (441) and is provided with a rotating shaft loading groove (4421); and A rotating shaft electromagnet (443) is disposed on the rotating shaft loading seat (442) and is disposed opposite to the rotating shaft loading groove (4421) for attracting the rotating shaft into the rotating shaft loading groove (4421); The hook feeding device (45) includes: A locking hook feeding cylinder (451) is provided on the ejection plate (43); A hook loading seat (452) is provided on the hook loading cylinder (451) and is provided with a hook loading groove (4522); and A locking hook electromagnet (453) is provided on the locking hook feeding seat (452) and is arranged opposite to the locking hook feeding groove (4522) for adsorbing the locking hook into the locking hook feeding groove (4522).

5. The automatic injection molding and unloading device for an electric bicycle seat according to claim 1, characterized in that, The sprue shearing device (5) includes: Cut off the rotary cylinder (52); and Pneumatic shears (51) are mounted on the shearing rotary cylinder (52); The pneumatic scissors (51) are used to cut off the water inlet of the seat cushion, and the cutting rotary cylinder (52) is used to rotate the pneumatic scissors (51) to cut off the water inlet and separate it from the seat cushion.

6. The automatic injection molding and unloading device for an electric bicycle seat according to claim 1, characterized in that, The three-axis moving device (3) includes: A movable base (34) is mounted on the injection molding machine (9); The first linear moving device (31) is disposed on the moving base (34) and is used to reciprocate along the width direction of the injection molding machine (9); The second linear moving device (32) is mounted on the slide of the first linear moving device (31) and is used to reciprocate along the length direction of the injection molding machine (9). The third linear moving device (33) is vertically mounted on the slide of the second linear moving device (32) and is used to reciprocate along the height direction of the injection molding machine (9). The ejector device and / or the insert feeding device are both mounted on the third linear moving device (33).

7. The automatic injection molding and unloading device for an electric bicycle seat according to claim 1, characterized in that, Also includes: A cushion conveying device (6) is located on one side of the injection molding machine (9) and is used to convey the injection-molded cushion. as well as A sealing strip assembly device (1) is provided on one side of the cushion conveying device (6) for pressing the sealing strip into the sealing groove of the cushion seat.

8. An automatic injection molding and unloading device for an electric bicycle seat according to claim 7, characterized in that, The sealing strip assembly device (1) includes: A sealing strip feeding device (11) is used to store coiled sealing strips; A sealing strip delivery device (12) is provided on one side of the sealing strip feeding device (11) and is used to deliver the sealing strip. A sealing strip detection device (13) is provided on the sealing strip delivery device (12) and is used to control the sealing strip delivery device (12) and the sealing strip feeding device (11). A robotic arm (21), said robotic arm (21) being disposed on one side of the sealing strip delivery device (12); and A sealing strip pressing device is provided on the robotic arm (21) and is used to press the sealing strip into the sealing groove of the seat cushion.

9. An automatic injection molding and unloading device for an electric bicycle seat according to claim 8, characterized in that, The sealing strip pressing device includes: A substrate (22) is pressed in, and the substrate (22) is disposed on the robotic arm (21); A pressing guide device (23) is provided at one end of the pressing substrate (22); A pressing feeding device (24) is disposed on the pressing substrate (22) and located on one side of the pressing guide device (23); The pressing and discharging component (25) is located on one side of the pressing and feeding device (24), and is provided with a discharge groove (251) that matches the sealing strip and a cutting groove (252) that communicates with the discharge groove (251). A press-in cutting device (26) is disposed on the press-in substrate (22) and located on one side of the press-in feeding device (24); and A compaction device (27) is located at the other end of the pressing substrate (22) and on one side of the pressing cut device (26) for pressing the sealing strip into the sealing groove of the seat cushion.

10. An automatic injection molding and unloading device for an electric bicycle seat according to claim 8, characterized in that, The cushion conveying device (6) includes: Seat cushion transfer device (61) for moving the seat cushion into the working range of the sealing strip pressing device; and A cushion delivery device (62) is provided on one side of the cushion transfer device (61) for moving the cushion from the cushion transfer device (61) to the cushion delivery device (62) and conveying it to the transfer device.

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