Continuous feeding injection molding machine

Abstract

The invention discloses a continuous feeding injection molding machine, and belongs to the technical field of injection molding machines, the continuous feeding injection molding machine comprises a feeding device, the feeding device is used for putting injection molding raw materials and melting the raw materials, the feeding device is provided with an injection molding device, the injection molding device is used for injecting the raw materials into a mold, and the feeding device is fixedly provided with a shell; a switching device and a taking-away device are arranged in the shell; the staying time of the transfer cylinder below the liquid outlet in the bottom of the melting box is the same every time, and meanwhile, after the transfer cylinder leaves the position below the liquid outlet in the bottom of the melting box, the closed spring rebounds quickly to prevent liquid leakage; when the transfer barrel reaches the position above the injection opening of the injection cylinder, the insertion head is inserted into the transfer barrel, meanwhile, the injection cylinder ascends, a main inlet of the injection cylinder is matched with the bottom of the transfer barrel, finally, air is introduced through an air pump, raw material liquid is introduced into the injection cylinder, then the raw material liquid is pushed into a mold by pushing a conical head, and full-automatic injection molding is achieved. The automation degree is high and the continuity is good.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molding machines, and particularly to an injection molding machine with continuous feeding. Background Art

[0002] An injection molding machine is a molding device that heats and melts thermoplastic or thermosetting plastics and then injects them into a mold to form various shaped plastic products. Injection molding is a cyclic process, and each cycle includes processes such as feeding, melting, injection, cooling, and part removal. The feeding link can directly affect the molding effect of plastic parts; in the feeding link, it is necessary to ensure that the amount of raw material added each time is constant. If there is a deviation in the amount of injected raw material, it will lead to overflow or shortage of liquid; the injection molding machines in the prior art usually use iron wires to assist injection, with cumbersome operations, and at the same time, quantitative injection cannot be fully achieved. At the same time, manual participation is usually required during the injection molding process, and the degree of automation is insufficient. At the same time, after the plastic is injected into the mold, it is necessary to wait for the mold to be removed and a new mold to be put in. Summary of the Invention

[0003] In view of the above technical problems, the technical solution adopted by the present invention is: an injection molding machine with continuous feeding, including a feeding device. The feeding device includes a chassis, on which a melting tank is fixedly installed. The feeding device is used to put the injection molding raw material and melt the raw material. An injection device is arranged on the feeding device. The injection device includes a vertical motor fixedly installed on the melting tank. The injection device is used to inject the raw material into the mold. A housing is fixedly installed on the feeding device, and a switching device is arranged inside the housing. The switching device includes a switching frame rotatably installed inside the housing. A taking device is arranged on the housing. The taking device includes an outer transmission frame fixedly installed on the housing. The taking device is used to take away the injection-molded mold and put in a new mold.

[0004] The feeding device includes a feed hopper. A mixing frame is rotatably installed on the melting tank. Two self-rotating rods are rotatably installed on the mixing frame. A switch ring is rotatably installed at the bottom of the feed hopper. A blocking plate is arranged at the bottom of the feed hopper. A transfer mechanism is arranged on the melting tank.

[0005] The injection device includes an injection cylinder. A pushing cone head is slidably installed inside the injection cylinder. A pushing screw rod is fixedly installed on the pushing cone head. Internal threads are arranged on the injection cylinder. The pushing screw rod and the injection cylinder form a screw drive. A lower closing disk is slidably installed at the upper part of the injection cylinder. A lower closing spring is arranged between the lower closing disk and the injection cylinder.

[0006] The switching device includes two insertion sliding plates slidably installed on the switching frame. An inner rotating shaft is fixedly installed on the switching frame. An outer rotating cylinder is slidably installed on the inner rotating shaft. Two middle transfer frames are fixedly installed on the outer rotating cylinder. A pushing connecting rod is rotatably installed on the middle transfer frame. The pushing connecting rod is rotatably installed with the insertion sliding plate.

[0007] The taking device includes a conveyor belt. A rotating shaft is rotatably installed in the housing. Two outer dial rods and an inner dial rod are fixedly installed on the rotating shaft. A number of clamping mechanisms are evenly arranged on the conveyor belt. The clamping mechanism includes a fixed frame fixedly installed on the conveyor belt, and a dropping plate is slidably installed on the fixed frame through a vertical guide post.

[0008] Furthermore, the feeding device further includes a switch gear fixedly installed on the switch ring, a mixing gear fixedly installed on the mixing frame, a heating pipe is arranged in the melting tank, a fixed internal gear ring is fixedly installed in the melting tank, a rotating gear is fixedly installed on the rotating shaft, the rotating gear meshes with the fixed internal gear ring, the feeding hopper is fixedly installed on the melting tank, a feeding cylinder is fixedly installed on the feeding hopper, an observation hole is arranged on the feeding cylinder, and an upper cover is arranged on the feeding cylinder.

[0009] Furthermore, the transfer mechanism includes a rotating frame rotatably installed on the melting tank. A lower gear, a toothless gear and an upper gear are fixedly installed on the rotating frame. The toothless gear meshes with the switch gear, the lower gear meshes with the mixing gear. Two transfer cylinders are fixedly installed on the rotating frame. An upper closing disc is slidably installed in the transfer cylinder. An upper closing spring is arranged between the upper closing disc and the transfer cylinder.

[0010] Furthermore, a closing block is slidably installed at the bottom of the melting tank. A closing spring is arranged between the closing block and the melting tank. A liquid outlet hole is arranged at the center of the bottom of the melting tank. When the transfer cylinder does not contact the closing block, the closing block blocks the liquid outlet at the center of the bottom of the melting tank.

[0011] Open the upper cover, put the raw materials into the feeding cylinder. The remaining materials in the feeding cylinder can be observed through the observation hole on the feeding cylinder. The lower gear rotates to drive the rotating frame, the upper gear and the toothless gear to rotate. The toothless gear drives the switch gear to rotate intermittently. The lower gear drives the mixing gear to rotate continuously. When the toothless part of the toothless gear reaches the switch gear, the switch ring is in the closed state. With the rotation of the switch ring and in cooperation with the blocking plate, the raw materials in the feeding hopper enter the melting tank intermittently, controlling the feeding speed and feeding amount to ensure that the melting tank is not filled. The raw materials enter the melting tank, and the raw materials are heated and melted by the heating pipe in the melting tank. At the same time, the mixing gear rotates to drive the mixing frame to rotate, thereby driving the rotating shaft to rotate. Under the action of the fixed internal gear ring, the rotating gear and the rotating shaft rotate, so as to realize the rotation and revolution of the rotating shaft. The raw materials in the melting tank are stirred by the rotating shaft to accelerate the melting of the raw materials.

[0012] In the initial state, the closing block seals the liquid outlet at the center of the bottom of the melting tank. When the rotating frame rotates to drive the transfer cylinder to rotate below the liquid outlet of the melting tank, the transfer cylinder pushes the closing block to slide outward along the melting tank, and the closing spring is compressed. The raw material liquid in the melting tank enters the transfer cylinder through the upper part of the transfer cylinder. In the initial state, the upper closing disc seals the bottom of the transfer cylinder under the action of the upper closing spring. When the transfer cylinder leaves below the liquid outlet of the melting tank, the closing spring rebounds, and the closing block continues to seal the liquid outlet at the bottom of the melting tank.

[0013] Further, the injection molding device further includes a motor gear fixedly installed on the motor shaft of the vertical motor. The motor gear meshes with the lower gear. A gear column is rotatably installed in the housing. A transmission gear and a lower toothless gear are fixedly installed on the gear column. A transmission belt is wound around the transmission gear and the upper gear. An extrusion motor is fixedly installed in the housing. A driving gear is fixedly installed on the motor shaft of the extrusion motor. A tooth column is rotatably installed in the housing. The tooth column meshes with the driving gear. A screw gear is fixedly installed on the feeding screw. The screw gear meshes with the tooth column.

[0014] Further, an air pump is fixedly installed in the housing. An air pipe is fixedly installed on the air pump. An insertion head is fixedly installed on the air pipe. The air pipe is a flexible pipe.

[0015] Further, a bottom plate is fixedly installed in the housing. A lifting electric cylinder is fixedly installed on the bottom plate. An output end of the lifting electric cylinder is fixedly installed with a descending plate. Guide columns are fixedly installed on the bottom plate. The descending plate slides along the guide columns. A downward pressure spring is arranged between the descending plate and the bottom plate. An insertion frame is fixedly installed on the descending plate. The insertion head is fixedly installed on the insertion frame.

[0016] Further, a driving pressure rod is rotatably installed at the bottom of the descending plate. A slider is slidably installed in the bottom plate. The slider is rotatably installed with the driving pressure rod. A driving lifting rod is rotatably installed on the slider. A lifting rod is rotatably installed on the driving lifting rod. A driven lifting rod is rotatably installed on the bottom plate. The driving lifting rod is rotatably installed with the driven lifting rod. The lifting rod is located below the injection cylinder. Four side guide frames are fixedly installed on the bottom plate. The injection cylinder is slidably installed with the side guide frames.

[0017] The rotation of the vertical motor drives the rotation of the motor gear, which in turn drives the rotation of the lower gear. When the transfer cylinder brings the raw material liquid above the lower closing disc, at this time the upper closing disc is located above the lower closing disc, the lifting cylinder extends, driving the descending plate to descend. The compression spring is compressed, driving the active pressure rod to rotate, which in turn drives the slider to slide, driving the active lifting rod to rotate. With the cooperation of the rotation of the passive lifting rod, the lifting rod and the injection cylinder are driven to rise along the side guide frame. At the same time, the descent of the descending plate drives the insertion frame and the insertion head to descend. The insertion head is inserted into the transfer cylinder located above the lower closing disc. At the same time, the injection cylinder rises, so that the nozzle at the top of the injection cylinder reaches the outside of the transfer cylinder. The air pump is started, and air is injected into the transfer cylinder through the air pipe and the insertion head, causing the upper closing disc and the lower closing disc to slide downward. The upper closing spring and the lower closing spring are compressed, and the raw material liquid enters the injection cylinder from the extrusion motor.

[0018] The upper gear drives the transmission gear, the gear column and the lower toothless gear to rotate through the transmission belt. The rotation of the extrusion motor drives the rotation of the active gear, which in turn drives the rotation of the tooth column, driving the rotation of the lead screw gear and the feeding lead screw, and driving the pushing cone head to advance spirally in the injection cylinder, pushing the raw material liquid in the injection cylinder into the mold to complete the injection molding.

[0019] Further, the switching device further includes an inner rotating gear fixedly installed on the inner rotating shaft. The inner rotating gear meshes with the lower toothless gear. A bottom gear is also fixedly installed at the lower part of the gear column. A lower spring is provided between the middle transfer frame and the switching frame. A mold is fixedly installed on the insertion slide plate, and a pressing disc is fixedly installed on the outer rotating cylinder.

[0020] Further, a pressing block gear is rotatably installed in the outer shell. A pressing block is fixedly installed on the pressing block gear. The pressing block cooperates with the pressing disc, and the pressing block gear meshes with the bottom gear.

[0021] Further, the taking device further includes an outer transmission wheel and an inner transmission wheel rotatably installed on the outer transmission frame. The conveyor belt is wound around the outer transmission wheel and the inner transmission wheel. A taking motor is fixedly installed on the outer transmission frame. A taking bevel gear is fixedly installed on the motor shaft of the taking motor. An inner toothless gear is rotatably installed on the outer transmission frame. An upper bevel gear is fixedly installed on the inner toothless gear. The taking bevel gear meshes with the upper bevel gear. An inner transmission gear is fixedly installed on the inner transmission wheel. The inner transmission gear meshes with the inner toothless gear. A passive wheel is fixedly installed on the rotating shaft. A horizontal transmission belt is wound around the motor shaft of the taking motor and the passive wheel.

[0022] Further, the clamping mechanism further includes a tension spring provided between the fixed frame and the falling plate. Two clamping plates are slidably installed on the falling plate. A clamping spring is provided between the clamping plate and the falling plate. An outer dial rod is fixedly installed on the clamping plate. An arc block is provided on the outer dial rod. The arc block cooperates with the outer dial rod. A pressing column is fixedly installed on the falling plate. The pressing column cooperates with the inner dial rod.

[0023] The rotation of the take-away motor drives the rotation of the take-away bevel gear, which in turn drives the rotation of the upper bevel gear and the inner toothless gear. The rotation of the passive wheel and the rotating shaft is driven through the horizontal transmission belt, thereby driving the rotation of the outer lever and the inner lever. At the same time, the intermittent rotation of the inner transmission gear and the inner transmission wheel is driven by the inner toothless gear, thereby driving the intermittent movement of the conveyor belt. Each movement of the conveyor belt drives the clamping mechanism to advance once. The unused mold is placed between the two clamping plates, and the clamping plates clamp the mold through the clamping springs. The molds are placed at intervals on the clamping mechanism. The clamping mechanism without a mold is used to remove the molded mold. When the clamping mechanism without a clamped mold reaches above the mold on the switching rack that has been molded and rotated 180 degrees, the conveyor belt stops moving at this time. The inner lever rotates to press down the pressing column and the falling plate, and the tension spring is compressed. Thus, the falling plate drives the clamping plate to descend. After the clamping plate contacts the mold, the mold pushes the clamping plate outwards through the chamfer on the clamping plate, and the clamping spring is stretched. At this time, the clamping plate is located outside the mold, and under the action of the clamping spring, the clamping plate clamps the mold. When the inner lever continues to rotate, the inner lever will disengage from the pressing column, and the tension spring rebounds, driving the falling plate to rise. Under the action of the clamping plate, the mold is taken out from the switching rack. Subsequently, the conveyor belt continues to move to realize the removal of the molded mold. Then, the clamping mechanism holding the unused mold reaches above the switching rack. After the conveyor belt stops moving, the outer lever starts to contact the outer side lever. The outer lever pushes the outer side lever and the clamping plate outwards through the arc block at the top of the outer side lever, and the clamping spring is further stretched. The clamping plate no longer clamps the mold, and the mold is placed into the placement groove of the switching rack to realize the placement of the unused mold. By cycling in sequence, the taking and placing of the mold are realized. The conveyor belt transfers the molded mold to the outside of the housing, and the user takes away the molded mold.

[0024] When the toothless part of the toothless gear reaches the inner rotating gear, the injection cylinder injects plastic into the mold at this time. The bottom gear drives the pressure block gear and the lower pressure block to rotate. When the lower pressure block presses down the lower pressure plate and the outer rotating cylinder, the lower spring is compressed. The middle transfer frame drives the pushing connecting rod to rotate, and the pushing connecting rod drives the inserting slide plate to slide outwards. The inserting slide plate drives the mold to slide towards the injection cylinder, and the injection cylinder inserts into the mold. When the lower pressure block disengages from the lower pressure plate, the lower spring rebounds, causing the lower pressure plate and the outer rotating cylinder to rise, making the mold slide inwards and the mold to disengage from the injection cylinder. At this time, the injection molding is completed; when the toothless gear meshes with the inner rotating gear, the toothless gear drives the inner rotating gear to rotate. The rotation of the inner rotating gear drives the inner rotating shaft and the switching frame to rotate, thereby driving the mold to rotate 180 degrees. The toothless gear meshes with the inner rotating gear enzymatically, driving the inner rotating gear and the switching frame to rotate 180 degrees, causing the next mold to reach the injection cylinder. Remove the injection-molded mold and place a new mold in it, and cycle in turn to achieve continuous injection molding; when the toothless gear disengages from the inner rotating gear, the injection cylinder inserts into the mold, and the injection cylinder injects plastic into the mold. When the toothless gear meshes with the inner rotating gear, the injection cylinder disengages from the mold, and the injection cylinder does not inject plastic into the mold, and the mold rotates 180 degrees.

[0025] The beneficial effects of the present invention compared with the prior art are as follows: (1) The self-rotating rod in the feeding device of the present invention rotates around its own axis while revolving around a fixed point, stirring the raw materials heated in the melting tank, accelerating the melting rate of the raw materials. The intermittent rotation of the switch ring cooperates with the blocking plate to achieve intermittent feeding, preventing too much or too little raw materials in the melting tank, and thus ensuring that the amount of raw materials entering the transfer cylinder each time is the same; (2) The transfer cylinder of the present invention stays below the liquid outlet at the bottom of the melting tank for the same time each time, which is convenient for ensuring that the feeding amount is the same each time. At the same time, after the transfer cylinder leaves below the liquid outlet at the bottom of the melting tank, the closing spring rebounds quickly, closing the bottom plate of the melting tank to prevent liquid leakage; (3) When the transfer cylinder reaches above the injection port of the injection cylinder, while the insertion head inserts into the transfer cylinder, the injection cylinder rises, so that the main inlet of the injection cylinder cooperates with the bottom of the transfer cylinder. Finally, through the air pump to supply air, the raw material liquid is introduced into the injection cylinder, and then the raw material liquid is pushed into the mold through the pushing cone head, realizing fully automatic injection molding, with high automation and good continuity; (4) The switching device of the present invention does not rotate during the injection molding operation, and the injection cylinder inserts into the mold. When not performing injection molding, the mold leaves the injection cylinder, and the switching frame rotates 180 degrees, causing the injection-molded mold to leave in front of the injection cylinder. At the same time, the mold to be injection-molded reaches in front of the injection cylinder. At this time, the injection-molded mold can be removed and a new mold can be placed. At this time, the mold to be injection-molded is injection-molded without any pause; (5) The taking device of the present invention can automatically transfer the injection-molded mold to the outside of the housing, which is convenient for taking away, and continuously put in the unused molds, thus realizing continuous operation. Description of the Drawings

[0026] Figure 1 This is the overall structural schematic diagram of the present invention.

[0027] Figure 2 This is the overall structural schematic diagram of the present invention (after shelling).

[0028] Figure 3 This is the structural schematic diagram of the feeding device of the present invention Figure 1 .

[0029] Figure 4 This is the structural schematic diagram of the feeding device of the present invention Figure 2 .

[0030] Figure 5 This is the structural schematic diagram of the transfer mechanism of the present invention.

[0031] Figure 6 This is the structural schematic diagram of the feeding device of the present invention Figure 3 .

[0032] Figure 7 This is the structural schematic diagram of the injection molding device of the present invention Figure 1 .

[0033] Figure 8 This is the structural schematic diagram of the injection molding device of the present invention Figure 2 .

[0034] Figure 9 This is the structural schematic diagram of the injection molding device of the present invention Figure 3 .

[0035] Figure 10 This is the structural schematic diagram of the injection molding device of the present invention Figure 4 .

[0036] Figure 11 This is the structural schematic diagram of the switching device of the present invention Figure 1 .

[0037] Figure 12 This is the structural schematic diagram of the switching device of the present invention Figure 2 .

[0038] Figure 13 This is the structural schematic diagram of the switching device of the present invention Figure 3 .

[0039] Figure 14 This is the structural schematic diagram of the taking device of the present invention Figure 1 .

[0040] Figure 15 This is the structural schematic diagram of the taking device of the present invention Figure 2 .

[0041] Figure 16 This is the structural schematic diagram of the taking device of the present invention Figure 3 .

[0042] Reference numerals in the drawings: 101 - chassis; 102 - melting tank; 103 - feed cylinder; 104 - upper cover; 105 - feed hopper; 106 - rotating frame; 107 - transfer cylinder; 108 - lower gear; 109 - tooth - missing gear; 110 - upper gear; 111 - switch ring; 112 - switch gear; 113 - mixing gear; 114 - baffle plate; 115 - upper closing disc; 116 - upper closing spring; 117 - mixing frame; 118 - self - rotating rod; 119 - self - rotating gear; 120 - fixed internal toothed ring; 121 - closing block; 122 - closing spring; 201 - vertical motor; 202 - motor gear; 203 - transmission belt; 204 - gear column; 205 - transmission gear; 206 - lower tooth - missing gear; 207 - extrusion motor; 208 - driving gear; 209 - tooth column; 210 - pushing screw rod; 211 - screw rod gear; 212 - air pump; 213 - air pipe; 214 - insertion head; 215 - bottom plate; 216 - injection cylinder; 217 - lifting electric cylinder; 218 - descending plate; 219 - guide post; 220 - insertion frame; 221 - pushing cone head; 222 - downward pressure spring; 223 - active pressure rod; 224 - slider; 225 - active lifting rod; 226 - lifting rod; 227 - passive lifting rod; 228 - lower closing disc; 229 - lower closing spring; 230 - side guide frame; 301 - switching frame; 302 - inner rotating shaft; 303 - inner rotating gear; 304 - insertion slide plate; 305 - mold; 306 - outer rotating cylinder; 307 - downward pressure plate; 308 - middle transfer frame; 309 - pushing connecting rod; 310 - lower spring; 311 - bottom gear; 312 - pressing block gear; 313 - lower pressing block; 401 - outer transmission frame; 402 - outer transmission wheel; 403 - picking motor; 404 - picking bevel gear; 405 - rotating shaft; 406 - outer shifting rod; 407 - inner shifting rod; 408 - passive wheel; 409 - horizontal transmission belt; 410 - upper bevel gear; 411 - inner tooth - missing gear; 412 - inner transmission gear; 413 - inner transmission wheel; 414 - conveyor belt; 415 - fixed frame; 416 - stretching spring; 417 - falling plate; 418 - clamping spring; 419 - clamping plate; 420 - vertical guide post; 421 - outer side shifting rod; 422 - downward pressure column; 5 - outer shell. Detailed implementation manners

[0043] The following further describes the detailed implementation manners of the present invention in conjunction with the accompanying drawings.

[0044] Example: Refer to Figures 1 - 16, an injection molding machine with continuous feeding, including a feeding device. The feeding device includes a chassis 101, on which a melting tank 102 is fixedly installed. The feeding device is used to put the injection molding raw materials and melt them. An injection molding device is arranged on the feeding device. The injection molding device includes a vertical motor 201, which is fixedly installed on the melting tank 102. The injection molding device is used to inject the raw materials into the mold. A housing 5 is fixedly installed on the feeding device. A switching device is arranged inside the housing 5. The switching device includes a switching frame 301, which is rotatably installed inside the housing 5. A taking device is arranged on the housing 5. The taking device includes an external transmission frame 401, which is fixedly installed on the housing 5. The taking device is used to take away the molded mold 305 and put in a new mold 305;

[0045] The feeding device includes a feeding hopper 105. A mixing frame 117 is rotatably installed on the melting tank 102. Two self-rotating rods 118 are rotatably installed on the mixing frame 117. A switch ring 111 is rotatably installed at the bottom of the feeding hopper 105. A blocking plate 114 is arranged at the bottom of the feeding hopper 105. A transfer mechanism is arranged on the melting tank 102;

[0046] The injection molding device includes an injection cylinder 216. A pushing cone head 221 is slidably installed inside the injection cylinder 216. A pushing screw rod 210 is fixedly installed on the pushing cone head 221. Internal threads are arranged on the injection cylinder 216. The pushing screw rod 210 and the injection cylinder 216 form a screw drive. A lower closing disk 228 is slidably installed on the upper part of the injection cylinder 216. A lower closing spring 229 is arranged between the lower closing disk 228 and the injection cylinder 216;

[0047] The switching device includes two insertion sliding plates 304 slidably installed on the switching frame 301. An inner rotating shaft 302 is fixedly installed on the switching frame 301. An outer rotating cylinder 306 is slidably installed on the inner rotating shaft 302. Two middle transfer frames 308 are fixedly installed on the outer rotating cylinder 306. A pushing connecting rod 309 is rotatably installed on the middle transfer frame 308. The pushing connecting rod 309 is rotatably installed with the insertion sliding plate 304;

[0048] The taking device includes a conveyor belt 414. A rotating shaft 405 is rotatably installed inside the housing 5. Two outer pushing rods 406 and an inner pushing rod 407 are fixedly installed on the rotating shaft 405. A number of clamping mechanisms are evenly arranged on the conveyor belt 414. The clamping mechanism includes a fixed frame 415 fixedly installed on the conveyor belt 414. A falling plate 417 is slidably installed on the fixed frame 415 through a vertical guide post 420.

[0049] Such as Figures 3 - 7As shown, the feeding device further includes a switch gear 112 fixedly installed on the switch ring 111, a mixing gear 113 fixedly installed on the mixing frame 117, a heating pipe provided in the melting tank 102, a fixed internal gear ring 120 fixedly installed in the melting tank 102, a self-rotating gear 119 fixedly installed on the self-rotating rod 118, the self-rotating gear 119 meshing with the fixed internal gear ring 120, a feeding hopper 105 fixedly installed on the melting tank 102, a feeding cylinder 103 fixedly installed on the feeding hopper 105, an observation hole provided on the feeding cylinder 103, and an upper cover 104 provided on the feeding cylinder 103.

[0050] As Figures 3 - 7 shown, the transfer mechanism includes a rotating frame 106 rotatably installed on the melting tank 102, a lower gear 108, a toothless gear 109, and an upper gear 110 fixedly installed on the rotating frame 106, the toothless gear 109 meshing with the switch gear 112, the lower gear 108 meshing with the mixing gear 113, two transfer cylinders 107 fixedly installed on the rotating frame 106, an upper closing disc 115 slidably installed in the transfer cylinder 107, and an upper closing spring 116 provided between the upper closing disc 115 and the transfer cylinder 107.

[0051] As Figures 3 - 7 shown, a closing block 121 is slidably installed at the bottom of the melting tank 102, a closing spring 122 is provided between the closing block 121 and the melting tank 102, a liquid outlet hole is provided at the center of the bottom of the melting tank 102, and when the transfer cylinder 107 does not contact the closing block 121, the closing block 121 blocks the liquid outlet at the center of the bottom of the melting tank 102.

[0052] Open the upper cover 104 and put the raw materials into the feeding cylinder 103. The remaining materials in the feeding cylinder 103 can be observed through the observation hole on the feeding cylinder 103. The lower gear 108 rotates to drive the rotating frame 106, the upper gear 110, and the toothless gear 109 to rotate. The toothless gear 109 drives the switch gear 112 to rotate intermittently, and the lower gear 108 drives the mixing gear 113 to rotate continuously. When the toothless part of the toothless gear 109 reaches the switch gear 112, the switch ring 111 is in the closed state. As the switch ring 111 rotates and cooperates with the blocking plate 114, the raw materials in the feeding hopper 105 enter the melting tank 102 intermittently, controlling the feeding speed and feeding amount to ensure that the melting tank 102 is not filled. The raw materials enter the melting tank 102, and the raw materials are heated and melted by the heating pipe in the melting tank 102. At the same time, the mixing gear 113 rotates to drive the mixing frame 117 to rotate, thereby driving the self-rotating rod 118 to rotate. Under the action of the fixed internal gear ring 120, the self-rotating gear 119 and the self-rotating rod 118 rotate, so as to realize the self-rotation and revolution of the self-rotating rod 118. The raw materials in the melting tank 102 are stirred by the self-rotating rod 118 to accelerate the melting of the raw materials.

[0053] In the initial state, the closing block 121 closes the liquid outlet at the center of the bottom of the melting tank 102. When the rotating frame 106 rotates to drive the transfer cylinder 107 to rotate below the liquid outlet of the melting tank 102, the transfer cylinder 107 pushes the closing block 121 to slide outward along the melting tank 102, and the closing spring 122 is compressed. The raw material liquid in the melting tank 102 enters the transfer cylinder 107 through the upper part of the transfer cylinder 107. In the initial state, the upper closing disc 115 closes the bottom of the transfer cylinder 107 under the action of the upper closing spring 116. When the transfer cylinder 107 leaves below the liquid outlet of the melting tank 102, the closing spring 122 rebounds, and the closing block 121 continues to close the liquid outlet at the bottom of the melting tank 102.

[0054] As Figures 8 - 11 shown, the injection molding device further includes a motor gear 202 fixedly installed on the motor shaft of the vertical motor 201. The motor gear 202 meshes with the lower gear 108. A gear column 204 is rotatably installed in the housing 5. A transmission gear 205 and a lower toothless gear 206 are fixedly installed on the gear column 204. A transmission belt 203 is wound around the transmission gear 205 and the upper gear 110. An extrusion motor 207 is fixedly installed in the housing 5. A driving gear 208 is fixedly installed on the motor shaft of the extrusion motor 207. A tooth column 209 is rotatably installed in the housing 5. The tooth column 209 meshes with the driving gear 208. A lead screw gear 211 is fixedly installed on the feeding lead screw 210. The lead screw gear 211 meshes with the tooth column 209.

[0055] As Figures 8 - 11 shown, an air pump 212 is fixedly installed in the housing 5. An air pipe 213 is fixedly installed on the air pump 212. An insertion head 214 is fixedly installed on the air pipe 213. The air pipe 213 is a flexible pipe.

[0056] As Figures 8 - 11 shown, a bottom plate 215 is fixedly installed in the housing 5. A jacking electric cylinder 217 is fixedly installed on the bottom plate 215. A descending plate 218 is fixedly installed on the output end of the jacking electric cylinder 217. A guide post 219 is fixedly installed on the bottom plate 215. The descending plate 218 slides along the guide post 219. A pressing spring 222 is arranged between the descending plate 218 and the bottom plate 215. An insertion frame 220 is fixedly installed on the descending plate 218. The insertion head 214 is fixedly installed on the insertion frame 220.

[0057] As Figures 8 - 11As shown, a driving pressure rod 223 is rotatably installed at the bottom of the descending plate 218, a slider 224 is slidably installed in the bottom plate 215, the slider 224 is rotatably installed with the driving pressure rod 223, a driving lifting rod 225 is rotatably installed on the slider 224, a lifting rod 226 is rotatably installed on the driving lifting rod 225, a driven lifting rod 227 is rotatably installed on the bottom plate 215, the driving lifting rod 225 is rotatably installed with the driven lifting rod 227, the lifting rod 226 is located below the injection cylinder 216, and four side guide frames 230 are fixedly installed on the bottom plate 215, and the injection cylinder 216 is slidably installed with the side guide frames 230.

[0058] The vertical motor 201 rotates to drive the motor gear 202 to rotate, thereby driving the lower gear 108 to rotate. When the transfer cylinder 107 carries the raw material liquid to above the lower closing plate 228, at this time the upper closing plate 115 is located above the lower closing plate 228, the jacking electric cylinder 217 extends, driving the descending plate 218 to descend, the downward pressure spring 222 is compressed, driving the driving pressure rod 223 to rotate, thereby driving the slider 224 to slide, thereby driving the driving lifting rod 225 to rotate. With the cooperation of the rotation of the driven lifting rod 227, the lifting rod 226 and the injection cylinder 216 are driven to rise along the side guide frames 230. At the same time, the descent of the descending plate 218 will drive the insertion frame 220 and the insertion head 214 to descend, and the insertion head 214 is inserted into the transfer cylinder 107 located above the lower closing plate 228. At the same time, the injection cylinder 216 rises, so that the pipe orifice at the top of the injection cylinder 216 reaches the outside of the transfer cylinder 107. The air pump 212 is started, and air is injected into the transfer cylinder 107 through the air pipe 213 and the insertion head 214, so that the upper closing plate 115 and the lower closing plate 228 slide downward, the upper closing spring 116 and the lower closing spring 229 are compressed, and the raw material liquid enters the injection cylinder 216 from the extrusion motor 207.

[0059] The upper gear 110 drives the transmission gear 205, the gear column 204 and the lower toothless gear 206 to rotate through the transmission belt 203. The extrusion motor 207 rotates to drive the driving gear 208 to rotate, thereby driving the tooth column 209 to rotate, thereby driving the lead screw gear 211 and the pushing lead screw 210 to rotate, thereby driving the pushing cone head 221 to screw forward in the injection cylinder 216, and pushing the raw material liquid in the injection cylinder 216 into the mold 305 to complete the injection molding.

[0060] As Figures 12 - 14 shown, the switching device further includes an inner rotating gear 303 fixedly installed on the inner rotating shaft 302, the inner rotating gear 303 meshes with the lower toothless gear 206, a bottom gear 311 is further fixedly installed at the lower part of the gear column 204, a lower spring 310 is arranged between the middle transfer frame 308 and the switching frame 301, a mold 305 is fixedly installed on the insertion sliding plate 304, and a downward pressing plate 307 is fixedly installed on the outer rotating cylinder 306.

[0061] As Figures 12 - 14As shown, a pressure block gear 312 is rotatably installed inside the outer shell 5. A lower pressure block 313 is fixedly installed on the pressure block gear 312. The lower pressure block 313 cooperates with the lower pressure plate 307, and the pressure block gear 312 meshes with the bottom gear 311.

[0062] When the toothless part of the lower toothless gear 206 reaches the inner rotating gear 303, at this time, the injection cylinder 216 injects plastic into the mold 305. The bottom gear 311 drives the pressure block gear 312 and the lower pressure block 313 to rotate. When the lower pressure block 313 presses down the lower pressure plate 307 and the outer rotating cylinder 306, the lower spring 310 is compressed. The middle transfer frame 308 drives the push rod 309 to rotate, and the push rod 309 drives the insertion slide plate 304 to slide outwards. The insertion slide plate 304 drives the mold 305 to slide towards the injection cylinder 216, and the injection cylinder 216 inserts into the mold 305. When the lower pressure block 313 disengages from the lower pressure plate 307, the lower spring 310 rebounds, causing the lower pressure plate 307 and the outer rotating cylinder 306 to rise, causing the mold 305 to slide inwards, and the mold 305 disengages from the injection cylinder 216. At this time, the plastic injection is completed. When the lower toothless gear 206 meshes with the inner rotating gear 303, the lower toothless gear 206 drives the inner rotating gear 303 to rotate. The inner rotating gear 303 rotates to drive the inner rotating shaft 302 and the switching frame 301 to rotate, thereby driving the mold 305 to rotate 180 degrees. The lower toothless gear 206 enzymatically meshes with the inner rotating gear 303, driving the inner rotating gear 303 and the switching frame 301 to rotate 180 degrees, causing the next mold 305 to reach the injection cylinder 216. The completed mold 305 is removed, and a new mold 305 is placed in, and the cycle is repeated to achieve continuous plastic injection. When the lower toothless gear 206 disengages from the inner rotating gear 303, the injection cylinder 216 inserts into the mold 305, and the injection cylinder 216 injects plastic into the mold 305. When the lower toothless gear 206 meshes with the inner rotating gear 303, the injection cylinder 216 disengages from the mold 305, and the injection cylinder 216 does not inject plastic into the mold 305, and the mold 305 rotates 180 degrees.

[0063] As Figure 15 、 Figure 16 shown, the taking device further includes an outer transmission wheel 402 and an inner transmission wheel 413 rotatably installed on the outer transmission frame 401. The conveyor belt 414 is wound outside the outer transmission wheel 402 and the inner transmission wheel 413. A taking motor 403 is fixedly installed on the outer transmission frame 401. A taking bevel gear 404 is fixedly installed on the motor shaft of the taking motor 403. An inner toothless gear 411 is rotatably installed on the outer transmission frame 401. An upper bevel gear 410 is fixedly installed on the inner toothless gear 411. The taking bevel gear 404 meshes with the upper bevel gear 410. An inner transmission gear 412 is fixedly installed on the inner transmission wheel 413. The inner transmission gear 412 meshes with the inner toothless gear 411. A passive wheel 408 is fixedly installed on the rotating shaft 405. A horizontal transmission belt 409 is wound outside the motor shaft of the taking motor 403 and the passive wheel 408.

[0064] As Figure 15 , Figure 16 shown, the clamping mechanism further includes a tension spring 416 disposed between the fixed frame 415 and the falling plate 417. Two clamping plates 419 are slidably mounted on the falling plate 417. A clamping spring 418 is disposed between the clamping plate 419 and the falling plate 417. An outer dial rod 421 is fixedly mounted on the clamping plate 419. An arc block is disposed on the outer dial rod 421 and is engaged with the outer dial rod 406. A pressing column 422 is fixedly mounted on the falling plate 417 and is engaged with the inner dial rod 407.

[0065] The rotation of the take-away motor 403 drives the rotation of the take-away bevel gear 404, which in turn drives the rotation of the upper bevel gear 410 and the internal toothless gear 411. The rotation of the upper bevel gear 410 and the internal toothless gear 411 drives the rotation of the passive wheel 408 and the rotating shaft 405 through the transverse transmission belt 409, thereby driving the rotation of the outer lever 406 and the inner lever 407. At the same time, the internal toothless gear 411 drives the intermittent rotation of the internal transmission gear 412 and the internal transmission wheel 413, thereby driving the intermittent movement of the conveyor belt 414. Each movement of the conveyor belt 414 drives the clamping mechanism to advance once. The unused mold 305 is placed between the two clamping plates 419. The clamping spring 418 causes the clamping plates 419 to clamp the mold 305. The molds 305 are placed at intervals on the clamping mechanism. The clamping mechanism without the mold 305 placed is used to remove the molded mold 305. When the clamping mechanism without the mold 305 reaches above the mold 305 located on the switching rack 301 and rotated 180 degrees after injection molding, the conveyor belt 414 stops moving. The inner lever 407 rotates to press down the pressing column 422 and the falling plate 417, and the tension spring 416 is compressed. Thus, the falling plate 417 drives the clamping plates 419 to descend. After the clamping plates 419 come into contact with the mold 305, the mold 305 pushes the clamping plates 419 outwards through the chamfers on the clamping plates 419, and the clamping spring 418 is stretched. At this time, the clamping plates 419 are located outside the mold 305. Under the action of the clamping spring 418, the clamping plates 419 clamp the mold 305. When the inner lever 407 continues to rotate, the inner lever 407 will disengage from the pressing column 422, and the tension spring 416 rebounds, driving the falling plate 417 to rise. Under the action of the clamping plates 419, the mold 305 is taken out from the switching rack 301. Subsequently, the conveyor belt 414 continues to move to realize the removal of the molded mold 305. Then, the clamping mechanism clamping the unused mold 305 reaches above the switching rack 301. After the conveyor belt 414 stops moving, the outer lever 406 starts to contact the outer lever 421. The outer lever 406 pushes the outer lever 421 and the clamping plates 419 outwards through the arc block at the top of the outer lever 421, and the clamping spring 418 is further stretched. The clamping plates 419 no longer clamp the mold 305, and the mold 305 is placed into the placement groove of the switching rack 301 to realize the placement of the unused mold 305. By cycling in sequence, the taking and placing of the mold 305 are realized. The conveyor belt 414 transfers the molded mold 305 to the outside of the housing 5, and the user takes away the molded mold 305.

[0066] The working principle of an injection molding machine with continuous feeding disclosed by the present invention is as follows: Open the upper cover 104, put raw materials into the feeding cylinder 103. The remaining materials in the feeding cylinder 103 can be observed through the observation hole on the feeding cylinder 103. The vertical motor 201 rotates to drive the motor gear 202 to rotate, thereby driving the lower gear 108 to rotate. The rotation of the lower gear 108 drives the rotating frame 106, the upper gear 110 and the toothless gear 109 to rotate. The toothless gear 109 drives the switch gear 112 to rotate intermittently, and the lower gear 108 drives the mixing gear 113 to rotate continuously. When the toothless part of the toothless gear 109 reaches the switch gear 112, the switch ring 111 is in the closed state. With the rotation of the switch ring 111 and in cooperation with the baffle plate 114, the raw materials in the feeding hopper 105 enter the melting tank 102 intermittently, controlling the feeding speed and feeding amount to ensure that the melting tank 102 is not filled. The raw materials enter the melting tank 102, and the raw materials are heated and melted by the heating tube in the melting tank 102. At the same time, the rotation of the mixing gear 113 drives the mixing frame 117 to rotate, thereby driving the self-rotating rod 118 to rotate. Under the action of the fixed internal tooth ring 120, the self-rotating gear 119 and the self-rotating rod 118 rotate, so as to realize the self-rotation and revolution of the self-rotating rod 118. The raw materials in the melting tank 102 are stirred by the self-rotating rod 118 to accelerate the melting of the raw materials. In the initial state, the closing block 121 closes the liquid outlet at the center of the bottom of the melting tank 102. When the rotating frame 106 rotates to drive the transfer cylinder 107 to rotate below the liquid outlet of the melting tank 102, the transfer cylinder 107 pushes the closing block 121 to slide outwards along the melting tank 102, and the closing spring 122 is compressed. The raw material liquid in the melting tank 102 enters the transfer cylinder 107 through the upper part of the transfer cylinder 107. In the initial state, the upper closing disc 115 closes the bottom of the transfer cylinder 107 under the action of the upper closing spring 116. When the transfer cylinder 107 leaves below the liquid outlet of the melting tank 102, the closing spring 122 rebounds, and the closing block 121 continues to close the liquid outlet at the bottom of the melting tank 102.The vertical motor 201 rotates to drive the motor gear 202 to rotate, thereby driving the lower gear 108 to rotate. When the transfer cylinder 107 drives the raw material liquid to reach above the lower closing plate 228, at this time, the upper closing plate 115 is located above the lower closing plate 228, the top-up electric cylinder 217 extends, driving the descending plate 218 to descend, the downward pressure spring 222 is compressed, driving the active pressure rod 223 to rotate, thereby driving the slider 224 to slide, thereby driving the active lifting rod 225 to rotate. With the cooperation of the rotation of the passive lifting rod 227, the lifting rod 226 and the injection cylinder 216 are driven to rise along the side guide frame 230. At the same time, the descent of the descending plate 218 will drive the insertion frame 220 and the insertion head 214 to descend, and the insertion head 214 is inserted into the transfer cylinder 107 located above the lower closing plate 228. At the same time, the injection cylinder 216 rises, so that the nozzle at the top of the injection cylinder 216 reaches the outside of the transfer cylinder 107. The air pump 212 is started, and air is injected into the transfer cylinder 107 through the air pipe 213 and the insertion head 214, so that the upper closing plate 115 and the lower closing plate 228 slide downward, and the upper closing spring 116 and the lower closing spring 229 are compressed, and the raw material liquid enters the injection cylinder 216 from the extrusion motor 207. The upper gear 110 drives the transmission gear 205, the gear column 204 and the lower toothless gear 206 to rotate through the transmission belt 203. The extrusion motor 207 rotates to drive the active gear 208 to rotate, thereby driving the tooth column 209 to rotate, thereby driving the lead screw gear 211 and the feeding lead screw 210 to rotate, thereby driving the pushing cone head 221 to screw forward in the injection cylinder 216, and pushing the raw material liquid in the injection cylinder 216 into the mold 305 to complete the injection molding.When the toothless part of the toothless gear 206 reaches the inner rotating gear 303, the injection cylinder 216 injects plastic into the mold 305 at this time. The bottom gear 311 drives the pressing block gear 312 and the lower pressing block 313 to rotate. When the lower pressing block 313 presses down the lower pressing plate 307 and the outer rotating cylinder 306, the lower spring 310 is compressed. The middle transfer frame 308 drives the pushing connecting rod 309 to rotate, and the pushing connecting rod 309 drives the inserting slide plate 304 to slide outwards. The inserting slide plate 304 drives the mold 305 to slide towards the injection cylinder 216, and the injection cylinder 216 inserts into the mold 305. When the lower pressing block 313 disengages from the lower pressing plate 307, the lower spring 310 rebounds, causing the lower pressing plate 307 and the outer rotating cylinder 306 to rise, causing the mold 305 to slide inwards, and the mold 305 disengages from the injection cylinder 216. At this time, the plastic injection is completed; when the toothless gear 206 meshes with the inner rotating gear 303, the toothless gear 206 drives the inner rotating gear 303 to rotate, and the rotation of the inner rotating gear 303 drives the inner rotating shaft 302 and the switching frame 301 to rotate, thereby driving the mold 305 to rotate 180 degrees. The toothless gear 206 enzymatically meshes with the inner rotating gear 303, driving the inner rotating gear 303 and the switching frame 301 to rotate 180 degrees, causing the next mold 305 to reach the injection cylinder 216. Remove the mold 305 with the plastic injection completed and place a new mold 305 in it, and cycle in sequence to achieve continuous plastic injection; when the toothless gear 206 disengages from the inner rotating gear 303, the injection cylinder 216 inserts into the mold 305, and the injection cylinder 216 injects plastic into the mold 305. When the toothless gear 206 meshes with the inner rotating gear 303, the injection cylinder 216 disengages from the mold 305, and the injection cylinder 216 does not inject plastic into the mold 305, and the mold 305 rotates 180 degrees.The rotation of the take-away motor 403 drives the rotation of the take-away bevel gear 404, thereby driving the rotation of the upper bevel gear 410 and the internal toothless gear 411. The rotation of the passive wheel 408 and the rotating shaft 405 is driven by the transverse transmission belt 409, thereby driving the rotation of the outer lever 406 and the inner lever 407. At the same time, the intermittent rotation of the internal transmission gear 412 and the internal transmission wheel 413 is driven by the internal toothless gear 411, thereby driving the intermittent movement of the conveyor belt 414. Each movement of the conveyor belt 414 drives the clamping mechanism to move forward once. The unused mold 305 is placed between the two clamping plates 419. The clamping spring 418 enables the clamping plate 419 to clamp the mold 305. The molds 305 are placed at intervals on the clamping mechanism. The clamping mechanism without the mold 305 placed is used to remove the molded mold 305. When the clamping mechanism without the mold 305 reaches above the mold 305 that is located on the switching frame 301, has been molded and rotated 180 degrees, at this time the conveyor belt 414 stops moving. The inner lever 407 rotates to press down the pressing column 422 and the falling plate 417, and the tension spring 416 is compressed. Thus, the falling plate 417 drives the clamping plate 419 to descend. After the clamping plate 419 contacts the mold 305, the mold 305 pushes the clamping plate 419 outwards through the chamfer on the clamping plate 419, and the clamping spring 418 is stretched. At this time, the clamping plate 419 is located outside the mold 305. Under the action of the clamping spring 418, the clamping plate 419 clamps the mold 305. When the inner lever 407 continues to rotate, the inner lever 407 will disengage from the pressing column 422, and the tension spring 416 rebounds, driving the falling plate 417 to rise. Under the action of the clamping plate 419, the mold 305 is taken out from the switching frame 301. Subsequently, the conveyor belt 414 continues to move to realize the removal of the molded mold 305. Then, the clamping mechanism clamping the unused mold 305 reaches above the switching frame 301. After the conveyor belt 414 stops moving, the outer lever 406 starts to contact the outer lever 421. The outer lever 406 pushes the outer lever 421 and the clamping plate 419 outwards through the arc block at the top of the outer lever 421, and the clamping spring 418 is further stretched. The clamping plate 419 no longer clamps the mold 305, and the mold 305 is placed into the placement groove of the switching frame 301 to realize the placement of the unused mold 305. By cycling in turn, the taking and placing of the mold 305 are realized. The conveyor belt 414 transfers the molded mold 305 to the outside of the housing 5, and the user takes away the molded mold 305.

[0067] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope of the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present invention.

Claims

1. An injection molding machine with continuous feeding, including a feeding device, characterized in that: The feeding device includes a chassis (101), on which a melting tank (102) is fixedly installed. The feeding device is used to put in injection molding raw materials and melt the raw materials. An injection molding device is provided on the feeding device. The injection molding device includes a vertical motor (201), which is fixedly installed on the melting tank (102). The injection molding device is used to inject the raw materials into a mold. An outer shell (5) is fixedly installed on the feeding device, and a switching device and a taking-away device are arranged inside the outer shell (5). The switching device includes a switching frame (301), which is rotatably installed inside the outer shell (5). The taking-away device includes an outer transmission frame (401), which is fixedly installed on the outer shell (5). The taking-away device is used to take away the injection-molded mold and put in a new mold.

2. The injection molding machine with continuous feeding according to claim 1, characterized in that: The feeding device includes a feed hopper (105). A mixing frame (117) is rotatably installed on the melting tank (102). Two self-rotating rods (118) are rotatably installed on the mixing frame (117). A switch ring (111) is rotatably installed at the bottom of the feed hopper (105). A blocking plate (114) is arranged at the bottom of the feed hopper (105). A transfer mechanism is arranged on the melting tank (102). A fixed internal gear ring (120) is fixedly installed inside the melting tank (102). Heating tubes are arranged inside the melting tank (102). Self-rotating gears (119) are fixedly installed on the self-rotating rods (118), and the self-rotating gears (119) are meshed with the fixed internal gear ring (120). The feed hopper (105) is fixedly installed on the melting tank (102). A feed cylinder (103) is fixedly installed on the feed hopper (105). Observation holes are arranged on the feed cylinder (103), and an upper cover (104) is arranged on the feed cylinder (103).

3. The injection molding machine with continuous feeding according to claim 2, wherein: The transfer mechanism includes a rotating frame (106) rotatably installed on the melting tank (102). Two transfer cylinders (107) are fixedly installed on the rotating frame (106). An upper closing disk (115) is slidably installed inside the transfer cylinder (107), and an upper closing spring (116) is arranged between the upper closing disk (115) and the transfer cylinder (107).

4. A plastic injection molding machine with continuous feeding according to claim 3, characterized in that: A closing block (121) is slidably installed at the bottom of the melting tank (102), and a closing spring (122) is arranged between the closing block (121) and the melting tank (102). A liquid outlet hole is arranged at the center of the bottom of the melting tank (102).

5. A continuous feeding injection molding machine according to claim 1, characterized in that: The injection device includes an injection cylinder (216). A pushing cone head (221) is slidably installed in the injection cylinder (216). A pushing screw rod (210) is fixedly installed on the pushing cone head (221). The injection cylinder (216) is provided with internal threads. The pushing screw rod (210) and the injection cylinder (216) form a screw drive. A lower closing disk (228) is slidably installed on the upper part of the injection cylinder (216). A lower closing spring (229) is arranged between the lower closing disk (228) and the injection cylinder (216). An extrusion motor (207) is fixedly installed in the housing (5). A driving gear (208) is fixedly installed on the motor shaft of the extrusion motor (207). A tooth column (209) is rotatably installed in the housing (5). The tooth column (209) meshes with the driving gear (208). A screw rod gear (211) is fixedly installed on the pushing screw rod (210). The screw rod gear (211) meshes with the tooth column (209).

6. A continuous feeding injection molding machine according to claim 5, wherein: An air pump (212) is fixedly installed in the housing (5). An air pipe (213) is fixedly installed on the air pump (212). An insertion head (214) is fixedly installed on the air pipe (213). The air pipe (213) is a flexible pipe.

7. The injection molding machine with continuous feeding according to claim 6, characterized in that: A bottom plate (215) is fixedly installed in the housing (5). A lifting electric cylinder (217) is fixedly installed on the bottom plate (215). A descending plate (218) is fixedly installed on the output end of the lifting electric cylinder (217). Guide columns (219) are fixedly installed on the bottom plate (215). The descending plate (218) slides along the guide columns (219). A downward pressure spring (222) is arranged between the descending plate (218) and the bottom plate (215). An insertion frame (220) is fixedly installed on the descending plate (218). The insertion head (214) is fixedly installed on the insertion frame (220).

8. A continuous feeding injection molding machine according to claim 7, characterized in that: A driving pressure rod (223) is rotatably installed at the bottom of the descending plate (218). A slider (224) is slidably installed in the bottom plate (215). The slider (224) is rotatably installed with the driving pressure rod (223). A driving lifting rod (225) is rotatably installed on the slider (224). A lifting rod (226) is rotatably installed on the driving lifting rod (225). A driven lifting rod (227) is rotatably installed on the bottom plate (215). The driving lifting rod (225) is rotatably installed with the driven lifting rod (227). The lifting rod (226) is located below the injection cylinder (216). Four side guide frames (230) are fixedly installed on the bottom plate (215). The injection cylinder (216) is slidably installed with the side guide frames (230).

9. The injection molding machine with continuous feeding according to claim 1, characterized in that: The switching device includes two insertion slide plates (304) slidably mounted on a switching frame (301). An inner rotating shaft (302) is fixedly mounted on the switching frame (301). An outer rotating cylinder (306) is slidably mounted on the inner rotating shaft (302). Two transfer frames (308) are fixedly mounted on the outer rotating cylinder (306). A pushing connecting rod (309) is rotatably mounted on the transfer frame (308). The pushing connecting rod (309) is rotatably mounted with the insertion slide plate (304). The switching device further includes a bottom gear (311). A lower spring (310) is provided between the transfer frame (308) and the switching frame (301). A mold (305) is fixedly mounted on the insertion slide plate (304). A pressing disc (307) is fixedly mounted on the outer rotating cylinder (306). A pressing block gear (312) is rotatably mounted in the housing (5). A pressing block (313) is fixedly mounted on the pressing block gear (312). The pressing block (313) cooperates with the pressing disc (307). The pressing block gear (312) meshes with the bottom gear (311).

10. A continuous feeding injection molding machine according to claim 1, characterized in that: The taking device includes a conveyor belt (414). A rotating shaft (405) is rotatably mounted in the housing (5). Two outer dial rods (406) and an inner dial rod (407) are fixedly mounted on the rotating shaft (405). A number of clamping mechanisms are evenly arranged on the conveyor belt (414). The clamping mechanism includes a fixed frame (415) fixedly mounted on the conveyor belt (414). A falling plate (417) is slidably mounted on the fixed frame (415) through a vertical guide post (420). Two clamping plates (419) are slidably mounted on the falling plate (417). A clamping spring (418) is provided between the clamping plate (419) and the falling plate (417). An outer dial rod (421) is fixedly mounted on the clamping plate (419). An arc block is provided on the outer dial rod (421). The arc block cooperates with the outer dial rod (406). A pressing column (422) is fixedly mounted on the falling plate (417). The pressing column (422) cooperates with the inner dial rod (407).

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