Feeding machine for plastic bottle production

Abstract

The invention provides a plastic bottle production feeding machine, and belongs to the technical field of feeding equipment. The device comprises a vacuum pump vehicle, a vacuum hopper, a first connecting pipe, a second connecting pipe, a material suction pipe and a raw material bin and further comprises a bottom plate, a portal frame is fixedly installed at the top of the bottom plate, the raw material bin is slidably installed at the top of the bottom plate and located in the portal frame, and the outer wall of the material suction pipe is fixedly sleeved with a connecting frame; two limiting sliding rods are slidably installed on the top of the portal frame, a rotating sleeve is rotatably installed on the top of the portal frame, and a long screw rod penetrates through the rotating sleeve and is installed in a threaded mode. The plastic bottle production feeding machine has the advantages that the material suction pipe can automatically move to suck materials, manpower is saved, feeding is stable, consumed time is low, the situation that the material suction pipe is inserted into raw material particles too deeply, and consequently material suction is difficult can be prevented, use is reliable, and impurities bonded in the material suction pipe are convenient to clean.

Description

Technical Field

[0001] The invention relates to the technical field of feeding equipment, in particular to a feeding machine for producing plastic bottles. Background Art

[0002] Plastic bottles are one of the most common containers in life. In the production process of plastic bottles, the plastic particles need to be melted through the injection molding machine and made into bottle blanks, and then the bottle blanks are sent to the blow molding machine for blow molding, cooling and shaping. At present, a considerable number of injection molding machines for plastic bottle production are fed by vacuum loaders. The vacuum hopper of the vacuum loaders is installed on the hopper of the injection molding machine. When the vacuum loaders are running, the plastic particle raw materials are sucked into the vacuum hopper. When the raw materials in the vacuum hopper reach the set amount, the valve at the bottom of the vacuum hopper opens to send the raw materials into the hopper of the injection molding machine.

[0003] When using the vacuum feeder for plastic bottle production in the prior art, it is necessary to manually hold a suction tube to suck materials into the silo. During the suction process, the position of the suction tube needs to be constantly moved, which is quite laborious. During the movement of the suction tube, the bottom end of the suction tube sometimes moves above the material, causing interruptions in suction, resulting in a relatively long entire feeding time.

[0004] Therefore, it is necessary to provide a plastic bottle production feeder to solve the above-mentioned technical problems. Summary of the invention

[0005] The technical problem solved by the present invention is to provide a plastic bottle production feeding machine which can automatically move a suction pipe to suck materials, save manpower, and ensure stable and low time-consuming feeding. It can prevent the suction pipe from being inserted too deeply into raw material particles, causing difficulty in sucking materials. It is reliable to use and easy to clean impurities stuck in the suction pipe.

[0006] In order to solve the above technical problems, the present invention provides a plastic bottle production feeding machine, comprising: a vacuum pump truck, a vacuum hopper, a first connecting pipe, a second connecting pipe, a suction pipe and a raw material bin, the raw material bin is arranged on one side of the vacuum pump truck, the suction pipe is located in the raw material bin, one end of the first connecting pipe is fixedly connected to the air inlet of the vacuum pump truck, and the other end is connected to the air outlet of the vacuum hopper, an air intake feed pipe is fixedly installed on the outer wall of the vacuum hopper, one end of the second connecting pipe is fixedly connected to the air intake feed pipe, and the other end extends into the raw material bin and is fixedly connected to the top end of the suction pipe, a bottom plate is arranged below the second connecting pipe, and the top of the bottom plate is fixed A gantry is installed, the raw material bin is slidably installed on the top of the bottom plate and is located in the gantry, a connecting frame is fixedly sleeved on the outer wall of the suction pipe, two limit slide bars are slidably installed on the top of the gantry, a rotating sleeve is rotatably installed on the top of the gantry, a long screw rod is passed through and threadedly installed in the rotating sleeve, the bottom ends of the long screw rod and the two limit slide bars are extended into the raw material bin and are fixedly connected to the connecting frame, a first motor is fixedly installed on the top of the gantry, and a bevel gear is fixedly sleeved on the output end of the first motor and the outer wall of the rotating sleeve, and the two bevel gears are meshed with each other; Transverse sliding bars are slidably installed on the outer walls on both sides of the gantry, and the ends of the two transverse sliding bars close to each other extend into the gantry and are fixedly connected to the raw material bin. The two transverse sliding bars are sleeved with a first spring, and the ends of the two first springs close to each other are fixedly connected to the raw material bin, and the ends of the two first springs away from each other are respectively fixedly connected to the inner walls on both sides of the gantry. A second motor is fixedly installed on the outer wall of one side of the gantry, and a cam is fixedly sleeved on the output end of the second motor, and a contact round wheel is rotatably installed on the corresponding end of the transverse sliding bar close to the second motor, and the outer ring of the contact round wheel contacts the outer ring of the cam.

[0007] Preferably, a plurality of bull's eye balls are fixedly mounted on the top of the bottom plate, a sliding contact plate is fixedly mounted on the bottom of the raw material bin, and the bottom of the sliding contact plate is in contact with the ball bodies of the bull's eye balls.

[0008] Preferably, three guide slide bars are penetrated and slidably installed on the connecting frame, and the bottom ends of the three guide slide bars are fixedly installed with the same hollow contact seat, and the guide slide bars on both sides are sleeved with second springs, the bottom ends of the two second springs are fixedly connected to the hollow contact seat, and the top ends are fixedly connected to the connecting frame, and a fixing plate is fixedly installed on the top of the guide slide bar located in the middle, and insulating seats are fixedly installed on the bottom of the fixing plate and the top of the connecting frame, and conductive blocks are fixedly installed on the two insulating seats, and the two conductive blocks are in contact with each other.

[0009] Preferably, an inner lining tube is provided in the suction tube, a plurality of positioning blocks are fixedly mounted on the inner wall of the suction tube, the top of the inner lining tube contacts the bottoms of the plurality of positioning blocks, a sleeve is threadedly mounted on the bottom of the suction tube, and the bottom of the suction tube and the bottom of the inner lining tube are both in contact with the bottom inner wall of the sleeve.

[0010] Preferably, two accommodating openings are provided at the bottom of the suction pipe, and two ear blocks are fixedly installed on the outer wall of the inner lining tube near the bottom. The two ear blocks are respectively located in the two accommodating openings, and rotating hand levers are rotatably installed on the two ear blocks.

[0011] Preferably, the inner liner tube comprises a left half liner and a right half liner, and the two ear blocks are fixedly mounted on the left half liner and the right half liner respectively.

[0012] Preferably, the outer wall of the envelope is integrally formed with a plurality of anti-slip convex strips.

[0013] Preferably, the left half liner is provided with four positioning slots, and the right half liner is provided with four positioning blocks in one piece, and one end of the four positioning blocks away from the right half liner extends into the corresponding positioning slots.

[0014] Preferably, a fixed seat is fixedly installed on the gantry, a rotating shaft is rotatably installed on the fixed seat, a rotating arm is fixedly sleeved on the rotating shaft, a sealing cover is fixedly installed on the bottom of the rotating arm, a third motor is fixedly installed on the bottom of the fixed seat, an output end of the third motor is fixedly connected to the bottom end of the rotating shaft, a blanking port is opened on the sealing cover, an air hood is fixedly installed on the top of the sealing cover and near the blanking port, a fixed pipe is fixedly installed on the air hood, one end of the fixed pipe away from the air hood is fixedly connected to the third connecting pipe, a branch pipe is fixedly installed on the bottom of the air intake and feeding pipe, and one end of the third connecting pipe away from the fixed pipe is fixedly connected to the bottom end of the branch pipe.

[0015] Preferably, a blocking net is fixedly installed at the hood opening of the induced draft hood.

[0016] Compared with the related art, the plastic bottle production feeder provided by the present invention has the following beneficial effects: The present invention provides a feeding machine for producing plastic bottles. Through the arrangement of a bottom plate, a gantry, a connecting frame, a limit slide bar, a rotating sleeve, a long screw rod, a first motor, a transverse slide bar, a second motor, a first spring and other components, when in use, after the first motor is started, the long screw rod can be driven to move downward continuously, so that a suction pipe can be inserted into the central position of raw material particles in a raw material bin to suck materials. When the second motor is in operation, the raw material bin can be driven to move left and right continuously, so that the raw material particles flow to the central position after being vibrated, thereby avoiding the situation that the suction pipe sucks materials intermittently. The traditional manual hand-held suction pipe for suction has the advantages of automatic suction, labor saving, stable feeding and low time consumption; through the arrangement of the guide slide bar, the hollow contact seat, the second spring, the fixing plate, the conductive block and other components, when the suction pipe is inserted too deeply, the hollow contact seat will contact the raw material particles and move upward relative to the connecting frame, and the two conductive blocks will separate, thereby temporarily cutting off the power to the first motor to prevent the suction pipe from further probing, which can prevent the suction pipe from being inserted too deeply into the raw material particles, resulting in difficulty in suction, and has the advantages of reliable use and stable suction speed. The present invention provides a feeding machine for producing plastic bottles. Through the arrangement of components such as an inner liner tube, a sleeve, an ear block, and a rotating hand lever, some plastic fragments in the raw material can be prevented from directly adhering to the inner wall of the suction tube. When it is necessary to clean the debris adhering to the inner wall of the inner liner tube, the sleeve is twisted off, and then the two rotating hand levers are buckled to a horizontal position. Then, the two rotating hand levers are pushed downward to bring out the inner liner tube, thereby avoiding direct disassembly of the suction tube. The machine has the advantage of convenient operation, and the inner liner tube can be split into two parts, which has the advantage of convenient cleaning of impurities. The present invention provides a plastic bottle production feeding machine. Through the arrangement of a third motor, a rotating arm, an induced draft hood, a third connecting pipe and other components, when plastic raw material particles are fed into a raw material bin, after a vacuum pump truck is started, external air can be drawn through the induced draft hood to suck some powdered plastic raw materials into a vacuum hopper, thereby preventing the powdered raw materials from scattering in the process of feeding, which is beneficial to the maintenance of the production environment and reduces the amount of powder inhaled by relevant personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a first embodiment of a plastic bottle production feeder provided by the present invention; Figure 2 for Figure 1 The schematic cross-sectional structure diagram of the raw material bin shown; Figure 3 for Figure 2 An enlarged schematic diagram of section A is shown; Figure 4 for Figure 2 An enlarged schematic diagram of portion B is shown; Figure 5 for Figure 2 A schematic diagram of the connection structure of the guide slide bar, the connecting frame, the fixing plate, the conductive block and other components shown; Figure 6 A schematic diagram of the structure of a suction pipe in a second embodiment of a plastic bottle production feeder provided by the present invention; Figure 7 for Figure 6 The schematic diagram of the structure in which the suction pipe and the envelope are separated; Figure 8 for Figure 7 An enlarged schematic diagram of section C is shown; Fig. 9 for Figure 6 The schematic diagram of the structure of the liner pipe shown; Fig.10 for Fig. 9 An exploded schematic diagram of the liner pipe shown; Fig.11 A schematic structural diagram of a third embodiment of a plastic bottle production feeder provided by the present invention; Fig.12 for Fig.11 An enlarged schematic diagram of section D is shown; Fig.13 for Fig.11 A schematic diagram of the connection structure of the fixing base, the third motor, the rotating arm, the cover and other components shown; Fig.14 for Fig.11 The schematic diagram shown is a raw material bin in a sealed state.

[0018] Numbers in the figure: 1. vacuum pump truck; 2. vacuum hopper; 3. first connecting pipe; 4. second connecting pipe; 5. suction pipe; 6. bottom plate; 7. gantry; 8. raw material bin; 9. connecting frame; 10. limit slide bar; 11. rotating sleeve; 12. long screw rod; 13. first motor; 14. bevel gear; 15. transverse slide bar; 16. second motor; 17. first spring; 18. contact round wheel; 19. cam; 20. guide slide bar ; 21. Hollow contact seat; 22. Second spring; 23. Fixed plate; 24. Conductive block; 25. Lining tube; 26. Envelope; 27. Ear block; 28. Rotating handle; 29. ​​Fixed seat; 30. Third motor; 31. Rotating arm; 32. Cover; 33. Air hood; 34. Block net; 35. Fixed tube; 36. Third connecting tube; 501. Accommodating port; 251. Left half lining; 252. Right half lining; 3201. Blanking port. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0020] First embodiment:

[0021] Please refer to Figure 1-Figure 5 In the first embodiment of the present invention, a plastic bottle production feeder includes: a vacuum pump truck 1, a vacuum hopper 2, a first connecting pipe 3, a second connecting pipe 4, a suction pipe 5 and a raw material bin 8. The raw material bin 8 is arranged on one side of the vacuum pump truck 1, and the suction pipe 5 is located in the raw material bin 8. One end of the first connecting pipe 3 is fixedly connected to the air inlet of the vacuum pump truck 1, and the other end is connected to the air outlet of the vacuum hopper 2. An air intake feed pipe is fixedly installed on the outer wall of the vacuum hopper 2, one end of the second connecting pipe 4 is fixedly connected to the air intake feed pipe, and the other end extends into the raw material bin 8 and is fixedly connected to the top of the suction pipe 5. When in use, the bottom of the vacuum hopper 2 is fixedly connected to the feed port of the hopper of the injection molding machine. A bottom plate 6 is arranged below the second connecting pipe 4, and a gantry 7 is fixedly installed on the top of the bottom plate 6. The raw material bin 8 is slidably installed on the top of the bottom plate 6 and is located in the gantry 7. The four corners of the bottom plate 6 are all opened A mounting hole is provided for fixing the bottom plate 6, a connecting frame 9 is provided on the fixed sleeve on the outer wall of the suction pipe 5, two limit slide bars 10 are slidably installed on the top of the gantry 7, a rotating sleeve 11 is rotatably installed on the top of the gantry 7, a long screw rod 12 is penetrated and threadedly installed in the rotating sleeve 11, the bottom ends of the long screw rod 12 and the two limit slide bars 10 are extended into the raw material bin 8, and are fixedly connected to the connecting frame 9, the two limit slide bars 10 and the top ends of the long screw rod 12 are fixedly installed with the same connecting plate, a first motor 13 is fixedly installed on the top of the gantry 7, a bevel gear 14 is fixedly provided on the output end of the first motor 13 and the outer wall of the rotating sleeve 11, and the two bevel gears 14 are meshed, and the circumferential rotation of the long screw rod 12 is indirectly limited by the two limit slide bars 10, and when the first motor 13 drives the rotating sleeve 11 to rotate, the long screw rod 12 can be driven to move upward or downward; During the material suction process, in order to gather the raw materials on the edge of the raw material bin 8 to the center, transverse sliding bars 15 are slidably installed on the outer walls of both sides of the gantry 7, and the ends of the two transverse sliding bars 15 close to each other extend into the gantry 7 and are fixedly connected to the raw material bin 8. A reinforcing ring is fixedly sleeved on the outer wall of the raw material bin 8, and the ends of the two transverse sliding bars 15 close to each other are directly fixedly connected to the reinforcing ring. The two transverse sliding bars 15 are sleeved with first springs 17, and the ends of the two first springs 17 close to each other are fixedly connected to the reinforcing ring on the raw material bin 8, and the ends of the two first springs 17 away from each other are respectively fixedly connected to the inner walls of both sides of the gantry 7. A motor mounting plate is fixedly installed on the outer wall of one side of the gantry 7, and a second motor 16 is fixedly installed on the motor mounting plate. A cam 19 is fixedly sleeved on the output end of the second motor 16, and a contact round wheel 18 is rotatably installed on the end of the corresponding transverse sliding bar 15 close to the second motor 16. The outer ring of the contact wheel 18 contacts the outer ring of the cam 19. When the protruding part of the cam 19 turns toward the gantry 7, it pushes the right transverse slide bar 15 to slide to the left through the contact wheel 18, and the raw material bin 8 and the other transverse slide bar 15 also slide to the left. In this process, the first spring 17 on the left is compressed and the first spring 17 on the right is stretched. When the protruding part of the cam 19 turns away from the gantry 7, the raw material bin 8 is reset to the right under the action of the two first springs 17. When the cam 19 continues to circulate, the raw material bin 8 can continue to move left and right. Due to the structure of the cam 19, the raw material bin 8 is nonlinear in the process of moving to the left and right. Therefore, the raw materials in the raw material bin 8 are subjected to continuous vibration. When part of the raw materials at the center of the raw material bin 8 is sucked away, part of the materials at the edge will move toward the center under the action of vibration, so that the top of the raw materials can be dynamically leveled.

[0022] In this embodiment, in order to provide reliable support for the raw material bin 8 and reduce the resistance encountered during its movement, a plurality of bull's eye balls are fixedly installed on the top of the base plate 6, and a sliding contact plate is fixedly installed on the bottom of the raw material bin 8, and the bottom of the sliding contact plate is in contact with the ball body of the bull's eye ball.

[0023] In this embodiment, considering that the lower the position of the raw material particles is, the greater the pressure they are subjected to, and therefore the more difficult it is for them to be sucked into the suction pipe 5, therefore, in order to prevent the suction pipe 5 from being inserted too deeply into the raw material, three guide slide bars 20 are penetrated and slidably installed on the connecting frame 9, and the bottom ends of the three guide slide bars 20 are fixedly installed with the same hollow contact seat 21, and the distance between the bottom of the hollow contact seat 21 and the bottom of the suction pipe 5 is maintained at 12 to 15 cm, which is the maximum downward distance of the suction pipe 5. The guide slide bars 20 on both sides are sleeved with second springs 22, and the bottom ends of the two second springs 22 are fixedly connected to the hollow contact seat 21, and the top ends are fixedly connected to the connecting frame 9. The top end of the guide slide bar 20 in the middle is fixedly installed with a fixing plate 23, and the bottom of the fixing plate 23 and the top of the connecting frame 9 are fixedly installed with insulating seats, and the two insulating seats are fixedly installed There are conductive blocks 24, two conductive blocks 24 are in contact with each other, and a protective cover is fixedly installed on the top of the connecting frame 9. The middle guide slide bar 20, the fixed plate 23 and the two conductive blocks 24 are all located in the protective cover. Under the gravity and the elastic force of the two second springs 22, the two conductive blocks 24 remain in contact to form a normally closed point, which is connected in series in the power-on control circuit of the first motor 13 through a wire. When the bottom end of the suction tube 5 is inserted into the raw material to a certain depth, the hollow contact seat 21 will contact the top of the raw material. If the suction tube 5 moves further downward, the hollow contact seat 21 will conflict with the top of the raw material, so it will move upward relative to the suction tube 5, which will cause the three guide slide bars 20 to slide upward, and the two conductive blocks 24 will separate, which will open the normally closed point and the first motor 13 will be powered off, thereby preventing the suction tube 5 from being inserted too deep.

[0024] In this embodiment: In the initial state, the suction pipe 5 is located above the raw material bin 8; When in use, first pour the plastic bottle raw material particles into the raw material bin 8, and when feeding into the hopper of the injection molding machine, after starting the vacuum pump truck 1, under the action of the air pressure difference, the external air will enter the suction pipe 5 at a high speed (that is, vacuum suction will be generated), and then start the first motor 13 and the second motor 16 to run, and the first motor 13 drives the rotating sleeve 11 to rotate forward, and the long screw rod 12 is gradually moved downward under the spiral push of the rotating sleeve 11, and the long screw rod 12 drives the suction pipe 5 to move downward through the connecting frame 9, so that the bottom end of the suction pipe 5 can be inserted into the raw material particles at the central position. Under the action of suction, the raw material particles will enter the suction pipe 5, and then enter the vacuum hopper 2 through the second connecting pipe 4. The filter element in the vacuum hopper 2 will intercept the raw material particles and raw material powder, and retain them in the vacuum hopper 2. The inhaled air will subsequently enter the vacuum pump truck 1 through the first connecting pipe 3 and be finally discharged; As the first motor 13 continues to move, the suction pipe 5 will continue to suck materials downwards, and in the process of sucking materials, the second motor 16 drives the cam 19 to rotate, and under the push of the cam 19 and the force of the two second springs 22, the raw material bin 8 will continue to circulate left and right. Since the speed of movement is variable, the raw materials in the raw material bin 8 will be vibrated. When the raw materials at the central position are drawn away to form a depression, the raw materials at the edge will automatically flow to the depression under the action of vibration, so that the suction speed of the suction pipe 5 is more stable, and there will be no interruption in suction. The two conductive blocks 24 are re-contacted, and the first motor 13 is restarted to continue to drive the suction pipe 5 to move downward to suck the material. This design can avoid the situation where the suction pipe 5 is difficult to suck the material due to being inserted too deeply into the raw material.

[0025] Compared with the related art, the plastic bottle production feeder provided by the present invention has the following beneficial effects: Through the arrangement of the bottom plate 6, the gantry 7, the connecting frame 9, the limit slide bar 10, the rotating sleeve 11, the long screw rod 12, the first motor 13, the transverse slide bar 15, the second motor 16, the first spring 17 and other components, when in use, after starting the first motor 13, the long screw rod 12 can be driven to move downward continuously, so that the suction pipe 5 can be inserted into the central position of the raw material particles in the raw material bin 8 for suction. When the second motor 16 is running, it can drive the raw material bin 8 to move left and right continuously, so that the raw material particles flow to the central position after being vibrated, thereby avoiding the situation that the suction pipe 5 has a suction interruption. Compared with the traditional manual The handheld suction tube 5 is used to suck materials, which has the advantages of automatic suction, labor saving, stable feeding and low time consumption; through the arrangement of the guide slide bar 20, the hollow contact seat 21, the second spring 22, the fixing plate 23, the conductive block 24 and other components, when the suction tube 5 is inserted too deeply, the hollow contact seat 21 will contact the raw material particles and move upward relative to the connecting frame 9, and the two conductive blocks 24 will separate, thereby temporarily cutting off the power to the first motor 13 to prevent the suction tube 5 from further probing, and preventing the suction tube 5 from being inserted too deeply into the raw material particles, which may cause difficulty in sucking materials. It has the advantages of reliable use and stable suction speed.

[0026] Second embodiment: Based on the plastic bottle production feeder provided in the first embodiment of the present application, the second embodiment of the present application proposes another plastic bottle production feeder. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0027] The second embodiment of the present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0028] Please refer to Figure 6-Figure 10 The bottom of the suction pipe 5 and the bottom of the inner liner 25 are in contact with the bottom inner wall of the sleeve 26, and the sleeve 26 is used to block the inner liner 25 and prevent it from slipping out.

[0029] In the present embodiment, in order to facilitate the quick removal of the inner liner tube 25, two accommodating openings 501 are provided at the bottom of the suction tube 5, and two ear blocks 27 are fixedly installed on the outer wall of the inner liner tube 25 and near the bottom. The two ear blocks 27 are respectively located in the two accommodating openings 501, and rotating handles 28 are rotatably installed on the two ear blocks 27. After the cover 26 is unscrewed, if the inner liner tube 25 cannot slide out by itself under the action of gravity, the two rotating handles 28 are respectively buckled downward to rotate the two rotating handles 28 to a horizontal state. In this way, one end of the two rotating handles 28 will be located outside the accommodating opening 501, and then the two rotating handles 28 can be pushed downward to take out the inner liner tube 25.

[0030] In this embodiment, in order to further facilitate the user to clean the debris stuck on the inner lining tube 25, the inner lining tube 25 includes a left half lining 251 and a right half lining 252, and two ear blocks 27 are respectively fixedly installed on the left half lining 251 and the right half lining 252. After the inner lining tube 25 is split into two parts, it is more convenient to clean.

[0031] In this embodiment, in order to facilitate the user to assemble the left half lining 251 and the right half lining 252 together, four positioning slots are provided on the left half lining 251, and four positioning blocks are integrally formed on the right half lining 252. The ends of the four positioning blocks away from the right half lining 252 extend into the corresponding positioning slots.

[0032] In this embodiment: By arranging the inner liner tube 25 in the suction tube 5, it is possible to prevent some plastic fragments in the raw material from directly adhering to the inner wall of the suction tube 5, and instead adhering to the inner wall of the inner liner tube 25 during the suction process. When cleaning the adhering debris, first unscrew the cover 26, then buckle the two rotating handles 28 downward respectively, rotate the two rotating handles 28 to a horizontal state, and then push the two rotating handles 28 downward to bring out the inner liner tube 25. After the inner liner tube 25 is brought out, break it apart, and then the inner walls of the left half liner 251 and the right half liner 252 can be cleaned of impurities. The plastic bottle production feeder provided in the present embodiment can prevent some plastic fragments in the raw materials from directly adhering to the inner wall of the suction tube 5 by arranging components such as the inner liner tube 25, the sleeve 26, the ear block 27, and the rotating handle bar 28. When it is necessary to clean the debris adhering to the inner wall of the inner liner tube 25, the sleeve 26 is unscrewed, and then the two rotating handle bars 28 are buckled to a horizontal position, and then the two rotating handle bars 28 are pushed downward to bring out the inner liner tube 25, thereby avoiding direct disassembly of the suction tube 5 and having the advantage of convenient operation. In addition, the inner liner tube 25 can be broken into two parts, which has the advantage of convenient cleaning of impurities.

[0033] Third embodiment: Based on the plastic bottle production feeder provided in the second embodiment of the present application, the third embodiment of the present application proposes another plastic bottle production feeder. The third embodiment is only a preferred embodiment of the second embodiment, and the implementation of the third embodiment will not affect the independent implementation of the second embodiment.

[0034] The third embodiment of the present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0035] Please refer to Figure 11-Figure 14 In the plastic bottle production feeder proposed in this embodiment, a fixed seat 29 is also fixedly installed on the gantry 7, a rotating shaft is rotatably installed on the fixed seat 29, a rotating arm 31 is fixedly sleeved on the rotating shaft, a sealing cover 32 is fixedly installed on the bottom of the rotating arm 31, a third motor 30 is fixedly installed on the bottom of the fixed seat 29, an output end of the third motor 30 is fixedly connected to the bottom end of the rotating shaft, a blanking port 3201 is opened on the sealing cover 32, after the sealing cover 32 is covered on the raw material bin 8, plastic raw material particles are put into or poured into the raw material bin 8 through the blanking port 3201, an air hood 33 is fixedly installed on the top of the sealing cover 32 and near the blanking port 3201, a fixed pipe 35 is fixedly installed on the air hood 33, and one end of the fixed pipe 35 away from the air hood 33 is fixedly connected to the third connecting pipe 36, and a branch pipe 32 is fixedly installed at the bottom of the air intake and feeding pipes. The third connecting pipe 36 is fixedly connected to the bottom end of the branch pipe at one end away from the fixed pipe 35. The branch pipe and the air inlet and feed pipe are both provided with electromagnetic valves. When feeding into the raw material bin 8, the electromagnetic valve on the air inlet and feed pipe is closed, and the electromagnetic valve on the branch pipe is opened. After the vacuum pump truck 1 is turned on, the air will enter the induced draft hood 33. When feeding, some powder in the plastic raw material will be lifted up and will enter the induced draft hood 33 with the air flow, and then enter the vacuum hopper 2 through the third connecting pipe 36. These powders will be intercepted by the filter element in the vacuum hopper 2, thus avoiding the powder from floating around during the process of feeding the raw materials. When feeding the hopper of the injection molding machine, the electromagnetic valve on the branch pipe is closed, and the electromagnetic valve on the air inlet and feed pipe is opened, so that the air will enter the vacuum hopper 2 through the second connecting pipe 4 to ensure normal material suction.

[0036] In this embodiment, in order to prevent plastic particles of normal particle size from being sucked into the induced draft hood 33 , a blocking net 34 is fixedly installed at the hood opening of the induced draft hood 33 .

[0037] In this embodiment: Except for placing or pouring plastic raw material particles into the raw material bin 8, the cover 32 is located at the rear side of the raw material bin 8 in other cases; When putting or pouring plastic raw materials into the raw material bin 8, first start the third motor 30 to drive the rotating arm 31 to rotate counterclockwise, and the rotating arm 31 drives the sealing cover 32 to move, so that the sealing cover 32 gradually moves to the top of the raw material bin 8. When the sealing cover 32 conflicts with the two limit blocks set on the raw material bin 8, the axis of the sealing cover 32 coincides with the axis of the raw material bin 8, and the third motor 30 stops running. Then the raw materials can be put into the raw material bin 8 through the drop port 3201. When feeding, the solenoid valve on the air intake and feeding pipe is closed, the solenoid valve on the branch pipe is opened, and the vacuum pump truck 1 is started, so that the external air is evenly The plastic raw material particles will flow into the induced draft hood 33 at a high speed. Some powdered raw materials will enter the induced draft hood 33 when they fall toward the material outlet 3201 (after the plastic raw material particles enter the raw material bin 8, the powders that are not sucked into the induced draft hood 33 will be lifted up. Due to the shielding of the cover 32, the lifted powders can only overflow through the material outlet 3201. Driven by the air flow, they will still enter the induced draft hood 33). Then, they will enter the vacuum hopper 2 through the third connecting pipe 36. When they enter the first connecting pipe 3 from the vacuum hopper 2, they will be intercepted by the filter element. This can well prevent the powdered raw materials from floating around. The plastic bottle production feeder proposed in this embodiment, through the arrangement of the third motor 30, the rotating arm 31, the induced draft hood 33, the third connecting pipe 36 and other components, when the plastic raw material particles are fed into the raw material bin 8, after the vacuum pump truck 1 is started, the external air can be drawn through the induced draft hood 33 to suck some powdered plastic raw materials into the vacuum hopper 2, so that the powdered raw materials can be prevented from scattering around during the feeding process, which is beneficial to the maintenance of the production environment and reduces the amount of powder inhaled by relevant personnel.

[0038] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A plastic bottle production feeder, comprising a vacuum pump truck (1), a vacuum hopper (2), a first connecting pipe (3), a second connecting pipe (4), a suction pipe (5) and a raw material bin (8), wherein the raw material bin (8) is arranged on one side of the vacuum pump truck (1), the suction pipe (5) is located in the raw material bin (8), one end of the first connecting pipe (3) is fixedly connected to the air inlet of the vacuum pump truck (1), and the other end is connected to the air outlet of the vacuum hopper (2), an air intake feed pipe is fixedly installed on the outer wall of the vacuum hopper (2), one end of the second connecting pipe (4) is fixedly connected to the air intake feed pipe, and the other end extends into the raw material bin (8) and is fixedly connected to the top end of the suction pipe (5), characterized in that: A bottom plate (6) is arranged below the second connecting pipe (4), a gantry (7) is fixedly mounted on the top of the bottom plate (6), the raw material bin (8) is slidably mounted on the top of the bottom plate (6) and is located inside the gantry (7), a connecting frame (9) is fixedly sleeved on the outer wall of the suction pipe (5), two limit slide bars (10) are slidably mounted on the top of the gantry (7), a rotating sleeve (11) is rotatably mounted on the top of the gantry (7), a long screw rod (12) passes through and is threadedly mounted in the rotating sleeve (11), the bottom ends of the long screw rod (12) and the two limit slide bars (10) both extend into the raw material bin (8) and are fixedly connected to the connecting frame (9), a first motor (13) is fixedly mounted on the top of the gantry (7), a bevel gear (14) is fixedly sleeved on the output end of the first motor (13) and the outer wall of the rotating sleeve (11), and the two bevel gears (14) are meshed with each other; Transverse sliding bars (15) are slidably mounted on the outer walls of both sides of the gantry (7), the ends of the two transverse sliding bars (15) approaching each other extend into the gantry (7) and are fixedly connected to the raw material bin (8), the two transverse sliding bars (15) are sleeved with a first spring (17), the ends of the two first springs (17) approaching each other are fixedly connected to the raw material bin (8), and the ends of the two first springs (17) away from each other are respectively fixedly connected to the inner walls of both sides of the gantry (7), a second motor (16) is fixedly mounted on the outer wall of one side of the gantry (7), a cam (19) is fixedly sleeved on the output end of the second motor (16), and a contact round wheel (18) is rotatably mounted on the end of the corresponding transverse sliding bar (15) approaching the second motor (16), and the outer ring of the contact round wheel (18) contacts the outer ring of the cam (19).

2. The plastic bottle production feeder according to claim 1, characterized in that: A plurality of bull's eye balls are fixedly mounted on the top of the bottom plate (6), and a sliding contact plate is fixedly mounted on the bottom of the raw material bin (8), wherein the bottom of the sliding contact plate contacts the ball bodies of the bull's eye balls.

3. The plastic bottle production feeder according to claim 1, characterized in that: Three guide slide bars (20) are passed through and slidably mounted on the connecting frame (9), the bottom ends of the three guide slide bars (20) are fixedly mounted with a same hollow contact seat (21), the guide slide bars (20) on both sides are sleeved with a second spring (22), the bottom ends of the two second springs (22) are fixedly connected to the hollow contact seat (21), and the top ends are fixedly connected to the connecting frame (9), a fixing plate (23) is fixedly mounted on the top end of the guide slide bar (20) in the middle, an insulating seat is fixedly mounted on the bottom of the fixing plate (23) and the top of the connecting frame (9), and a conductive block (24) is fixedly mounted on the two insulating seats, and the two conductive blocks (24) are in contact with each other.

4. The plastic bottle production feeder according to claim 3, characterized in that: An inner lining tube (25) is arranged inside the suction tube (5), and a plurality of positioning blocks are fixedly mounted on the inner wall of the suction tube (5), and the top of the inner lining tube (25) contacts the bottom of the plurality of positioning blocks, and a sleeve (26) is threadedly mounted on the bottom of the suction tube (5), and the bottom of the suction tube (5) and the bottom of the inner lining tube (25) are both in contact with the bottom inner wall of the sleeve (26).

5. The plastic bottle production feeder according to claim 4, characterized in that: The bottom of the suction pipe (5) is provided with two receiving openings (501), and two ear blocks (27) are fixedly installed on the outer wall of the inner lining tube (25) near the bottom. The two ear blocks (27) are respectively located in the two receiving openings (501), and a rotating handle (28) is rotatably installed on the two ear blocks (27).

6. The plastic bottle production feeder according to claim 5, characterized in that: The inner liner tube (25) comprises a left half liner (251) and a right half liner (252), and the two ear blocks (27) are fixedly mounted on the left half liner (251) and the right half liner (252), respectively.

7. The plastic bottle production feeder according to claim 4, characterized in that: The outer wall of the envelope (26) is integrally formed with a plurality of anti-slip convex strips.

8. The plastic bottle production feeder according to claim 6, characterized in that: The left half liner (251) is provided with four positioning slots, and the right half liner (252) is provided with four positioning plugs in an integral manner, and the ends of the four positioning plugs away from the right half liner (252) all extend into the corresponding positioning slots.

9. The plastic bottle production feeder according to any one of claims 1 to 8, characterized in that: A fixed seat (29) is fixedly mounted on the gantry (7), a rotating shaft is rotatably mounted on the fixed seat (29), a rotating arm (31) is fixedly sleeved on the rotating shaft, a cover (32) is fixedly mounted on the bottom of the rotating arm (31), a third motor (30) is fixedly mounted on the bottom of the fixed seat (29), an output end of the third motor (30) is fixedly connected to the bottom end of the rotating shaft, a blanking opening (3201) is provided on the cover (32), an air induced draft hood (33) is fixedly mounted on the top of the cover (32) and at a position close to the blanking opening (3201), a fixed pipe (35) is fixedly mounted on the air induced draft hood (33), one end of the fixed pipe (35) away from the air induced draft hood (33) is fixedly connected to a third connecting pipe (36), a branch pipe is fixedly mounted on the bottom of the air intake and feeding pipe, one end of the third connecting pipe (36) away from the fixed pipe (35) is fixedly connected to the bottom end of the branch pipe.

10. The plastic bottle production feeder according to claim 9, characterized in that: A blocking net (34) is fixedly installed at the opening of the air induced hood (33).

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