Automatic feeding machine for plastic bottle processing

Abstract

The present invention relates to the technical field of plastic bottle processing, and specifically to an automatic feeding machine for plastic bottle processing, comprising a base frame, on which are arranged: a conveyor belt, on which vertical baffles are arranged at intervals, on which lap joints are arranged, and on which lap joints are arranged lap hooks; a hopper, on which a suction pipe and a vacuum adsorption component are arranged, the hopper is arranged above the conveyor belt so that the discharge port opened in the hopper faces the conveyor belt, and the hopper is flipped and provided with a blocking plate driven by an elastic member to maintain a default state to block the discharge port. The invention provides an automatic feeding machine for plastic bottle processing, which utilizes vertical baffles and lap hooks to intermittently open the blocking plate, and realizes intermittent material discharge from the hopper by controlling the movement of the conveyor belt, thereby improving the uniformity of the granular raw materials falling on the conveyor belt and avoiding the problem of granular raw materials being scattered due to excessive raw material accumulation height.

Description

Technical Field

[0001] The invention relates to the technical field of plastic bottle processing, in particular to an automatic feeding machine for plastic bottle processing. Background Art

[0002] Plastic bottles are widely used polyester, polyethylene, polypropylene as raw materials, adding corresponding organic solvents, after high temperature heating, through the plastic mold through blow molding, extrusion blow molding, or injection molding of plastic containers. Mainly used for beverages, food, pickles, honey, dried fruits, edible oil, pesticides and veterinary drugs and other liquid or solid disposable plastic packaging containers. Plastic bottles have the characteristics of not easy to break, low cost, high transparency, etc., and granular plastic raw materials are often used in the production of plastic bottles.

[0003] According to publication number CN214086364U, publication (announcement) date: 2021.08.31, a feeding device for plastic bottle processing is disclosed. The feeding device for plastic bottle processing includes a base and a conveyor belt, and two first support plates are fixedly connected to the top of the base, and a rotating rod is rotatably connected between the opposite sides of the two first support plates, and the outer surface of the rotating rod is fixedly connected to two rotating plates. The feeding device for plastic bottle processing provided by the utility model pushes the connecting rod through the extension of the hydraulic cylinder, and the connecting rod pushes the two rotating plates to rotate. The rotating plate pushes the mounting plate to rotate through one end of the two main push rods, and the mounting plate pushes the two slave push rods, and one end of the two slave push rods pushes the two fixed blocks upward, thereby pushing the two connecting plates to rotate and rise with the connection point with the two left vertical plates as the rotation point, thereby raising one end of the conveyor belt, thereby realizing the height adjustment of one end of the conveyor belt according to the height of the feeding port of the mixing box.

[0004] According to publication number CN111098435A, publication (announcement) date: 2020.05.05, the disclosed plastic bottle raw material feeding system includes a mounting frame, the length of the mounting frame is less than the diameter of the raw material bag mouth, a roller is arranged above the mounting frame, a sling is connected and wrapped around the roller, the sling is connected to the mounting frame, a fixing plate is arranged on the mounting frame, a fixing hole for inserting a suction pipe is arranged on the fixing plate, and a locking piece is arranged in the fixing hole. The present invention can solve the problem in the prior art that the suction pipe cannot be stably fixed, resulting in the exhaust port on it being easily blocked.

[0005] In the prior art including the above-mentioned patents, during the processing of plastic bottles, due to the layout position and site area of ​​the production line, a suction machine is often required to cooperate with a conveyor belt to transport the plastic raw materials. That is, a suction pipe is first used to suck the plastic granular raw materials, and the plastic granules are sucked and discharged onto the conveyor belt, and then transported to a mixing tank through the conveyor belt for stirring and heating. However, the discharge hopper of the existing suction pipe is mostly opened at a timed interval, that is, after the discharge hopper is full of plastic granules, the sealing plate is opened to allow the granular raw materials to fall onto the conveyor belt, which easily causes the granules to accumulate on the conveyor belt, resulting in an excessively high accumulation height, and causes the granular raw materials to scatter outside the conveyor belt. Summary of the invention

[0006] The purpose of the present invention is to provide an automatic feeding machine for processing plastic bottles, so as to solve the above problems.

[0007] In order to achieve the above object, the present invention provides the following technical solution: an automatic feeding machine for processing plastic bottles, comprising a base frame, on which are arranged:

[0008] A conveyor belt, on which vertical stoppers are arranged at intervals, on which lap joints are arranged, and on which lap joints are arranged lap hooks;

[0009] A hopper, on which a suction pipe and a vacuum adsorption component are arranged, the hopper is arranged above the conveyor belt so that the discharge port opened by the hopper faces the conveyor belt, and a blocking plate driven by an elastic member to maintain a default state to block the discharge port is arranged on the hopper;

[0010] The conveyor belt is driven to move cyclically so that a plurality of overlapping hooks overlap and drive the blocking plate to rotate away from the discharge port and then disengage.

[0011] Preferably, the lap joint is arranged on the vertical stop portion for parallel sliding, and a flexible supporting portion is provided on the lap joint located on the supporting surface of the conveyor belt. The conveyor belt moves so that the lap hook is detached after being overlapped to the blocking plate, so that the flexible supporting portion is first stretched and deformed and then reset.

[0012] Preferably, it also includes a swivel ring which is coaxially sealed and rotatably arranged on the hopper, and a material-blocking rod located in the hopper is arranged in a circular array on the swivel ring, and the material-blocking rod is located vertically below the connection between the suction pipe and the hopper.

[0013] Preferably, a transmission rod is symmetrically arranged on the hopper for vertical sliding, and movable columns are arranged at both ends of the transmission rod. The movable columns are respectively movably arranged on the sealing plate and the swivel through the movable columns, and the sealing plate is driven to flip to drive the swivel to rotate through the transmission rod.

[0014] Preferably, a secondary hook is provided at the first end of the transmission rod, and the movement of the conveyor belt causes the overlapping hook to overlap and drive the blocking plate to rotate and then disengage, and then the overlapping hook moves to overlap the secondary hook and disengages again.

[0015] Preferably, the inner circumferential array of the rotating ring is provided with a partially spiral inclined groove, the blocking rod piston is slidably arranged in the inclined groove, and the blocking rod is provided with a spray hole connected to the inclined groove.

[0016] Preferably, the inclined slide grooves are arranged in groups at intervals along the axial direction of the rotating ring, and the inclination of each group of inclined slide grooves arranged in the axial direction of the rotating ring increases gradually.

[0017] Preferably, a clamping groove and an overlapping groove are provided on the sealing plate. The sealing plate is in a default state so that the clamping part on the hopper is clamped in the clamping groove. The conveyor belt moves so that the overlapping hook overlaps in the overlapping groove so that the clamping part is disengaged from the clamping groove.

[0018] Preferably, the conveyor belt is arranged in a waist-shaped manner on a rotating roller rotatably arranged on a base frame. The conveyor belt moves so that the flexible supporting part moves to the peripheral side of the rotating roller and is pulled in an arc shape so that the lap joint slides and squeezes the vertical blocking part to bend vertically downward in an arc shape.

[0019] Preferably, the blocking plate is symmetrically provided with a first driving groove arranged parallel to the blocking plate, the outer circumferential array of the rotating ring is provided with a partially spiral second driving groove, and the movable column is movably arranged in the first driving groove and the second driving groove respectively.

[0020] In the above technical scheme, the present invention provides an automatic feeding machine for plastic bottle processing, which has the following beneficial effects: using the vertical stopper and the lap hook to intermittently open the blocking plate, the intermittent feeding of the hopper is controlled by the movement of the conveyor belt, thereby improving the uniformity of the granular raw materials falling on the conveyor belt, and avoiding the problem of granular raw materials being scattered due to excessive raw material accumulation. Secondly, the suction work performed by the vacuum adsorption component will adsorb and remove the dust on the granular raw materials and the conveyor belt, thereby improving the cleanliness of the raw materials and facilitating the subsequent stirring and heating process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present invention;

[0023] Figure 2 A schematic cross-sectional view of the overall structure provided for an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of the structure of a hopper and a conveyor belt provided in an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of the structure of a hopper, a swivel and a sealing plate provided in an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of the explosion structure of the hopper, swivel and sealing plate provided in an embodiment of the present invention;

[0027] Figure 6 The embodiment of the present invention provides Figure 2 A local enlarged schematic diagram of point A in the middle.

[0028] Description of reference numerals:

[0029] 1. Base frame; 2. Conveyor belt; 21. Vertical blocking part; 22. Rotating roller; 3. Hopper; 31. Suction pipe; 32. Vacuum adsorption component; 33. Discharge port; 34. Mounting part; 35. Clamping part; 36. Sliding part; 4. Sealing plate; 41. Clamping groove; 42. Overlap groove; 43. First drive slide groove; 5. Overlap part; 51. Overlap hook; 52. Flexible supporting part; 6. Swivel; 61. Second drive slide groove; 62. Inclined slide groove; 7. Transmission rod; 71. Movable column; 72. Sliding groove; 73. Secondary hook; 8. Material blocking rod; 81. Spray hole. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0031] like Figure 1-6 As shown, a plastic bottle processing automatic feeding machine includes a base frame 1, on which are arranged:

[0032] The conveyor belt 2 has vertical stoppers 21 arranged at intervals thereon, the vertical stoppers 21 are provided with lap joints 5, and the lap joints 5 are provided with lap hooks 51;

[0033] A hopper 3 is provided with a suction pipe 31 and a vacuum adsorption assembly 32. The hopper 3 is arranged above the conveyor belt 2 so that a discharge port 33 of the hopper 3 faces the conveyor belt 2. A blocking plate 4 is turned over on the hopper 3 and is driven by an elastic member to maintain a default state to block the discharge port 33.

[0034] The conveyor belt 2 is driven to move cyclically so that the overlapping hooks 51 overlap and drive the blocking plate 4 to rotate away from the discharge port 33 and then disengage.

[0035] Specifically, Figure 1 As shown, a conveyor belt 2 and a hopper 3 are provided on the base frame 1, a thin material pipe 31 on the hopper 3 extends to the place where the granular raw material is placed, and the vacuum adsorption component 32 continuously sucks the inside of the hopper 3, and the blocking plate 4 is rotatably arranged on the mounting portion 34 of the hopper 3, when the elastic member drives the blocking plate 4 to be in the default state, the discharge port 33 of the hopper 3 is blocked, and the negative pressure generated in the hopper 3 enables the suction pipe 31 to adsorb the granular raw material into the hopper 3, and when the conveyor belt 2 moves, the conveyor belt 2 drives the vertical stop 21 and the lap joint 5 to move, and the lap joint 5 moves so that the lap hook 51 is overlapped on the blocking plate 4, and as the conveyor belt 2 moves, the lap hook 51 drives the blocking plate 4 to flip away from the discharge port 33 so that the hopper The granular raw materials 3 fall onto the supporting surface of the conveyor belt 2, and at this time the vertical baffle 21 also follows the deformation, until the conveyor belt 2 moves to the vertical baffle 21 bends to the lap hook 51 and separates from the blocking plate 4, and the blocking plate 4 is reset to block the discharge port 33. At this time, the vacuum adsorption component 32 adsorbs the granular raw materials into the hopper 3 through the suction pipe 31, and the conveyor belt 2 continues to move so that another set of vertical baffles 21 and the lap joint 5 overlap and open the blocking plate 4, so that the vertical baffle 21 and the lap hook 51 intermittently open the blocking plate 4, and realize the intermittent discharge of the hopper 3 by controlling the movement of the conveyor belt 2, thereby improving the uniformity of the granular raw materials when they fall on the conveyor belt 2, and avoiding the problem of scattering of the granular raw materials due to excessive raw material accumulation height. Secondly, when the sealing plate 4 is flipped to open the discharge port 33 for the discharge of granular raw materials, the vacuum adsorption component 32 still performs the suction work, but the negative pressure in the hopper 3 is reduced so that the suction pipe 31 will not adsorb the granular raw materials into the hopper, and the discharge port 33 faces the conveyor belt 2. At this time, the suction work performed by the vacuum adsorption component 32 will adsorb and remove the dust on the granular raw materials and the conveyor belt 2, thereby improving the cleanliness of the raw materials and facilitating the subsequent stirring and heating process.

[0036] The elastic member may be replaced by any other elastic object known to those skilled in the art, such as a spring, a spiral spring, an elastic plate, etc., and the vacuum adsorption component 32 is a common technical knowledge known to those skilled in the art and will not be described in detail here.

[0037] Furthermore, a snap-in groove 41 and a lap groove 42 are provided on the blocking plate 4. When the blocking plate 4 is in a default state, the snap-in portion 35 on the hopper 3 is snap-into the snap-in groove 41. The conveyor belt 2 moves so that the lap hook 51 is lapped in the lap groove 42 to disengage the snap-in portion 35 from the snap-in groove 41. When the elastic member drives the blocking plate 4 to return to the default state, the snap-in portion 35 is snap-into the snap-in groove 41 of the blocking plate 4 to improve the stability of the blocking plate 4 when receiving the granular raw material in the hopper 3. Only when the lap hook 51 is lapped into the lap groove 42, the snap-in portion 35 is disengaged from the snap-in groove 41 to facilitate the flipping of the blocking plate 4 to expose the discharge port 33, thereby improving the feeding stability of the hopper 3 and the blocking plate 4.

[0038] In the above technical solution, the vertical stopper 21 and the lap hook 51 are used to intermittently open the blocking plate 4, so as to realize the intermittent discharge of the hopper 3 by controlling the movement of the conveyor belt 2, thereby improving the uniformity of the granular raw materials falling on the conveyor belt 2, and avoiding the problem of the granular raw materials being scattered due to the excessive height of the raw materials being piled up. Secondly, the suction work performed by the vacuum adsorption component 32 will adsorb and remove the dust on the granular raw materials and the conveyor belt 2, thereby improving the cleanliness of the raw materials and facilitating the subsequent stirring and heating process.

[0039] As another embodiment provided by the present invention, the lap joint 5 is arranged on the vertical blocking portion 21 for parallel sliding. The lap joint 5 is provided with a flexible supporting portion 52 located on the supporting surface of the conveyor belt 2. The conveyor belt 2 moves so that the lap hook 51 is overlapped to the blocking plate 4 and then detached so that the flexible supporting portion 52 is first stretched and deformed and then reset.

[0040] Specifically, Figure 2 As shown, the lap joint 5 is slidably arranged on the vertical stop 21 in parallel, and the flexible supporting portion 52 of the lap joint 5 is located on the supporting surface of the conveyor belt 2. When the mobile lap hook 51 of the conveyor belt 2 drives the blocking plate 4 to flip away from the discharge port 33, the lap joint 5 is subjected to the tensile force generated by the lap joint and slides to pull the flexible supporting portion 52 to extend and lengthen toward the root of the vertical stop 21, and the granular raw material falls through the discharge port 33 and stops on the flexible supporting portion 52. At this time, the flexible supporting portion 52 plays a role in flexibly receiving the granular raw material to reduce The impact on the conveyor belt 2 is reduced, and the conveying stability is improved. When the overlapping hook 51 is separated from the sealing plate 4 when the conveyor belt 2 continues to move, the flexible supporting part 52 is elastically reset and shrinks away from the root of the vertical baffle 21, thereby pulling the granular raw material away from the root of the vertical baffle 21 to facilitate subsequent unloading. In addition, the supporting area of ​​the flexible supporting part 52 is reduced due to shrinkage, and the bottom of the granular raw material accumulated thereon can move and collapse, thereby further avoiding the problem of the granular raw material accumulation in a cone shape with increased height.

[0041] Further, the conveyor belt 2 is arranged in a waist-shaped manner on a rotating roller 22 rotatably arranged on the base frame 1. The conveyor belt 2 moves so that the flexible supporting portion 52 moves to the peripheral side of the rotating roller 22 and is pulled in an arc shape so that the lap joint 5 slides and squeezes the vertical stop portion 21 to bend vertically downward in an arc shape. The rotating roller 22 rotates to drive the conveyor belt 2 to move in a waist-shaped manner for transportation, such as Figure 2 As shown, when the conveyor belt 2 conveys the vertical baffle 21 to the right end, the granular raw materials on the flexible supporting portion 52 are easy to roll down and enter the mixing tank. Since the flexible supporting portion 52 is located on the peripheral side of the rotating roller 22 and is pulled in an arc shape, the flexible supporting portion 52 will apply a pulling force to the lap joint 5 to slide relative to the rotating roller 22. A limiting portion is also provided on the lap joint 5. The lap joint 5 is pulled and pushes the vertical baffle 21 vertically downward through the limiting portion to be deformed and bent into an arc shape, thereby facilitating the granular raw materials on the conveyor belt 2 to roll into the mixing tank, avoiding the problem of the granular raw materials being retained at the root of the vertical baffle 21 and subsequently scattering to the outside of the mixing tank, thereby improving the stability of material discharge.

[0042] As another embodiment provided by the present invention, it also includes a swivel 6 coaxially sealed and rotatably arranged on the hopper 3, and a circular array of material blocking rods 8 located in the hopper 3 is arranged on the swivel 6. The material blocking rods 8 are located vertically below the connection between the suction pipe 31 and the hopper 3.

[0043] Specifically, Figure 2 As shown, the swivel 6 is coaxially rotatably arranged on the hopper 3, and a dynamic seal is arranged between the swivel 6 and the hopper 3, and a material blocking rod 8 is arranged in a circumferential array on the inner side of the hopper 3 on the swivel 6. Since the shape of the plastic granular raw material is usually cylindrical, when the vacuum adsorption component 32 sucks the granular raw material into the hopper 3 through negative pressure and the suction pipe 31, the cylindrical granular raw material easily enters the hopper 3 and rolls circumferentially along the inner wall of the hopper 3 due to inertia. The axial rolling of the granular raw material along the inner wall of the hopper 3 generates a biased centrifugal force and inertia, which easily causes the fixing bolts and brackets of the hopper 3 to bear a large impact, but By utilizing the existence of the swivel 6 and the blocking rod 8, when the granular raw material enters the inner wall of the hopper 3, it will contact and hit the blocking rod 8 and stagnate and fall. At this time, the dynamic seal between the swivel 6 and the hopper 3 can make a buffer layer to reduce the impact, so as to utilize the blocking rod 8 to prevent the hopper 3 from being violently vibrated by the impact of the moving centrifugal force of the granular raw material. Secondly, the blocking rod 8 can block raw materials of all sizes, so as to prevent the granular raw material from naturally falling to the bottom of the hopper 3 and causing the granular raw material to be layered up and down according to the particle size, thereby improving the uniformity of the particles discharged from the hopper 3 and facilitating the subsequent mixing process.

[0044] As another embodiment provided by the present invention, a transmission rod 7 is symmetrically and vertically slidably arranged on the hopper 3, and movable columns 71 are arranged at both ends of the transmission rod 7. The movable columns 71 are respectively movably arranged on the sealing plate 4 and the swivel 6 through the movable columns 71. The sealing plate 4 is driven to flip over to drive the swivel 6 to rotate through the transmission rod 7.

[0045] Specifically, Figure 4 As shown, the lower end of the transmission rod 7 is the first end, and the upper end is the second end, and a sliding groove 72 is provided on the transmission rod 7, and a sliding portion 36 is provided on the hopper 3. The sliding portion 36 is slidably arranged in the sliding groove 72 to make the transmission rod 7 slide vertically arranged, and the upper end of the transmission rod 7 is transmission-connected with the swivel 6, and the lower end is transmission-connected with the sealing plate 4. When negative pressure is generated in the hopper 3, the friction force of the dynamic seal between the swivel 6 and the hopper 3 increases due to the negative pressure, thereby making the swivel 6 non-rotatable, and the swivel 6 and the sealing plate 4 are transmission-connected through the transmission rod 7, and then the swivel 6 and the transmission rod 7 are used to further improve the stability of the sealing plate 4 in the default state to block the discharge port 33. When the blocking plate 4 is overlapped by the overlapping hook 51 and flipped over, the discharge port 33 leaks out and destroys the internal negative pressure of the hopper 3. At this time, the swivel 6 can rotate, and the swivel 6 will rotate synchronously with the axial direction of the hopper 3 when the blocking plate 4 is flipped open. The swivel 6 rotates so that the hopper 3 is not prone to horizontal shaking due to the angular momentum generated by the rotation, thereby improving the stability of material discharge.

[0046] Secondly, if the accumulation height of the granular raw materials in the hopper 3 is high enough to bury the blocking rod 8, the swivel 6 will contact the raw material particles during rotation and generate resistance, thereby increasing the pulling force required for the sealing plate 4 to rotate open, while the pulling force provided by the lap hook 51 remains unchanged. As a result, when the height of the raw materials in the hopper 3 is high, the opening through which the sealing plate 4 can be rotated open becomes smaller, thereby changing the opening size of the sealing plate 4 according to the real-time height of the granular raw materials in the hopper 3, thereby making the discharge amount of the hopper 3 more uniform, thereby avoiding inconsistent amounts of granular raw materials taken on by the conveyor belt 2 and causing conveying vibrations of the conveyor belt 2.

[0047] Furthermore, the blocking plate 4 is symmetrically provided with a first driving slot 43 arranged in parallel with the blocking plate 4, and a partially spiral second driving slot 61 is arranged in a circumferential array on the outer side of the rotating ring 6, and the movable column 71 is movably arranged in the first driving slot 43 and the second driving slot 61, respectively. Figure 5As shown, the movable column 71 at the upper end of the transmission rod 7 is movably arranged in the second driving slide groove 61, and the movable column 71 at the lower end of the transmission rod 7 is movably arranged in the first driving slide groove 43. When the sealing plate 4 is overlapped and pulled by the overlapping hook 51 and turned over to expose the discharge port 33, the transmission rod 7 is pulled and slides vertically downward. At this time, the movable column 71 at the upper end of the transmission rod 7 passes through the second driving slide groove 61 to push the swivel 6 to rotate circumferentially. The transmission rod 7 is used to realize the transmission connection between the sealing plate 4 and the swivel 6, which simplifies the device structure and improves the transmission stability.

[0048] As another embodiment provided by the present invention, a secondary hook portion 73 is provided at the first end of the transmission rod 7. The conveyor belt 2 moves so that the overlapping hook 51 overlaps and drives the blocking plate 4 to rotate and then disengages. Subsequently, the overlapping hook 51 moves to overlap the secondary hook portion 73 and then disengages again.

[0049] Specifically, Figure 5 As shown, a secondary hook 73 is provided on the first end of the transmission rod 7 toward the sealing plate 4, and the conveyor belt 2 moves so that the overlapping hook 51 first overlaps with the sealing plate 4 to drive the sealing plate 4 to flip and open the discharge port 33, and the granular raw material in the hopper 3 is discharged through the discharge port 33, and then the overlapping hook 51 is separated from the sealing plate 4, and the elastic member drives the sealing plate 4 to flip and reset for a distance, and the conveyor belt 2 continues to convey, and then the overlapping hook 51 overlaps with the secondary hook 73 again. At this time, the overlapping hook 51 moves and pulls the transmission rod 7 to move vertically downward for a distance, thereby driving the sealing plate 4 to rotate away from the discharge port 33 again, and then the overlapping hook 51 is separated from the secondary hook 73 again, and the sealing plate 4 can be rotated and reset to close. Therefore, after the sealing plate 4 is opened by utilizing the overlapping hook 51 and the secondary hook 73, it is necessary to first perform a rotational reciprocating shaking stroke before it can be rotated to reset and close, and then shake the position where the gas flow rate is relatively low at the connection between the root of the sealing plate 4 and the hopper 3, to avoid the problem of material jamming caused by the accumulation of granular raw materials at the connection between the root of the sealing plate 4 and the hopper 3, improve the material discharge stability, and also shake off the adhered dust on the sealing plate 4 to facilitate the vacuum adsorption component 32 to adsorb and remove the dust, thereby achieving dust cleaning on the sealing plate 4.

[0050] As another embodiment provided by the present invention, a partially spiral inclined groove 62 is provided in the inner circumferential array of the rotating ring 6, the piston of the blocking rod 8 is slidably arranged in the inclined groove 62, and the blocking rod 8 is provided with a spray hole 81 connected to the inclined groove 62.

[0051] Specifically, a spring is also provided in the inclined chute 62 to drive the blocking rod 8 to remain at the high end of the inclined chute 62. The blocking rod 8 is slidably arranged in the inclined chute 62, and the ejection hole 81 is connected to the inclined chute 62. When the vacuum adsorption component 32 sucks the granular raw material into the hopper 3 through the suction pipe 31, the granular raw material hits the blocking rod 8 so that the blocking rod 8 slides along the inclined chute 62. At this time, the spring can further absorb the impact force and the shock absorption effect, thereby improving the feeding stability. Secondly, when the suction pipe 3 normally drops the raw material into the hopper 3, the blocking rod 8 slides so that the air in the inclined chute 62 is squeezed out and the raw material particles are sprayed along the ejection hole 81, thereby spraying the dust adhering to the raw material particles, which is convenient for the dust on the raw material to be separated and improves the cleanliness of the raw material.

[0052] Furthermore, since the rotational reciprocating vibration of the blocking plate 4 is transmitted through the output transmission rod 7 so that the swivel 6 also has a rapid reciprocating stroke of axial rotation, when the conveyor belt 2 moves so that the overlapping hook 51 is separated from the blocking plate 4 after overlapping, the elastic member drives the blocking plate 4 to flip and reset for a distance, and the overlapping hook 51 overlaps with the secondary hook 73. At this time, the overlapping hook 51 moves and pulls the transmission rod 7 to move vertically downward for a distance, thereby driving the blocking plate 4 to rotate away from the discharge port 33 again. At the same time, due to the existence of the transmission rod 7, the swivel 6 moves synchronously with the blocking plate 4, that is, when the blocking plate 4 flips and shakes before resetting, the swivel 6 also follows and performs circumferential rotation and reciprocating vibration. At this time, the material blocking rod 8 will slide due to inertia and then be reset by the spring, that is, when the discharge port 33 is opened for unloading, the material blocking rod 8 will slide due to inertia and then be reset, thereby causing the raw material particles that may be stuck on the material blocking rod 8 to fall down, and the ejection hole 81 on the material blocking rod 8 ejects gas to accelerate the falling and discharging of the stuck raw material particles, thereby avoiding the problem of raw material jamming in the hopper 3.

[0053] As another embodiment provided by the present invention, the inclined grooves 62 are arranged in groups at intervals along the axial direction of the swivel 6, and the inclination of each group of inclined grooves 62 arranged in the axial direction of the swivel 6 increases gradually.

[0054] Specifically, Figure 6 As shown, the axial direction of the swivel 6 is the vertical direction, and the inclined slots 62 are spaced along the axial direction of the swivel 6 to be divided into two groups. The inclined slots 62 of the upper group have a larger inclination, and the inclined slots 62 of the lower group have a smaller inclination. In the process of opening the discharge port 33 for unloading, the swivel 6 rotates and shakes circumferentially, so that each group of blocking rods 8 will slide due to inertia and then be reset by the spring. Since the inclinations of each group of inclined slots 62 are different, when the blocking rod 8 tilts and slides, the inclinations of each group of blocking rods 8 in the vertical direction are inconsistent, and the spacing between the blocking rods 8 changes to further avoid the problem of granular raw materials getting stuck between the blocking rods 8, thereby improving the unloading stability.

[0055] And because the inclinations of each group of inclined chutes 62 are different, the sliding resistance of the vertical blocking rod 8 is inconsistent. When the height of the granular raw material in the hopper 3 changes, it will contact different groups of blocking rods 8, so that the higher the height of the granular raw material in the hopper 3, the greater the change in the resistance applied to the swivel 6, thereby further subdividing the rotation stroke of the sealing plate 4 and the opening size of the discharge port 33, so that the opening size of the discharge port 33 can be changed according to the real-time height of the granular raw material in the hopper 3, thereby further improving the uniformity of material discharge from the hopper 3.

[0056] Working principle: When the blocking plate 4 is in the default state, the discharge port 33 of the hopper 3 is blocked, and the negative pressure generated in the hopper 3 enables the suction pipe 31 to absorb the granular raw materials into the hopper 3. When the conveyor belt 2 moves, the conveyor belt 2 drives the vertical stop 21 and the lap joint 5 to move, and the lap joint 5 moves so that the lap hook 51 overlaps the blocking plate 4. As the conveyor belt 2 moves, the lap hook 51 drives the blocking plate 4 to flip away from the discharge port 33 so that the granular raw materials in the hopper 3 fall onto the supporting surface of the conveyor belt 2. The blocking plate 4 drives the rotating ring 6 through the transmission rod 7 to rotate with the axis of the hopper 3. The conveyor belt 2 rotates synchronously in the same direction, and the vertical stop 21 also follows the deformation, until the conveyor belt 2 moves to the point where the vertical stop 21 bends and the overlapping hook 51 is separated from the blocking plate 4, and the elastic member drives the blocking plate 4 to flip and reset for a distance, and the conveyor belt 2 continues to convey, and then the overlapping hook 51 overlaps with the secondary hook 73 again, and at this time, the overlapping hook 51 moves and pulls the transmission rod 7 to move vertically downward for a distance, thereby driving the blocking plate 4 to rotate away from the discharge port 33 again, so that the blocking plate 4 has a rotational reciprocating shaking stroke before resetting, and then the position where the gas flow rate is smaller at the connection between the root of the blocking plate 4 and the hopper 3 is shaken;

[0057] Due to the existence of the transmission rod 7, when the blocking plate 4 flips and shakes before resetting, the rotating ring 6 also rotates and shakes circumferentially, and the blocking rod 8 slides due to inertia and is reset by the spring, that is, when the discharge port 33 is opened for unloading, the blocking rod 8 slides due to inertia and then resets, so that the raw material particles that may be stuck on the blocking rod 8 fall down, and the ejection hole 81 on the blocking rod 8 ejects gas to accelerate the falling and unloading of the stuck raw material particles;

[0058] Then, the overlapping hook 51 is separated from the secondary hook portion 73 , and the blocking plate 4 can be rotated and reset to block the discharge port 33 .

[0059] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A plastic bottle processing automatic feeding machine, characterized in that: It comprises a base frame (1) on which are arranged: A conveyor belt (2) is provided with vertical stoppers (21) at intervals, a lap joint (5) is provided on the vertical stoppers (21), and a lap joint hook (51) is provided on the lap joint (5); A hopper (3) is provided with a suction pipe (31) and a vacuum adsorption assembly (32); the hopper (3) is arranged above the conveyor belt (2) so that a discharge port (33) provided in the hopper (3) faces the conveyor belt (2); a blocking plate (4) is provided on the hopper (3) and is driven by an elastic member to maintain a default state to block the discharge port (33); The conveyor belt (2) is driven to move cyclically so that a plurality of overlapping hooks (51) overlap and drive the blocking plate (4) to rotate away from the discharge port (33) and then disengage; The lap joint (5) is arranged on the vertical stop (21) in a parallel sliding manner, and a flexible supporting portion (52) is arranged on the lap joint (5) and is located on the supporting surface of the conveyor belt (2). When the conveyor belt (2) moves, the lap joint hook (51) is overlapped with the blocking plate (4) and then separated, so that the flexible supporting portion (52) is first stretched and deformed and then reset. It also includes a rotating ring (6) coaxially sealed and rotatably arranged on the hopper (3), and a material blocking rod (8) located in the hopper (3) is arranged in a circular array on the rotating ring (6), and the material blocking rod (8) is located vertically below the connection between the suction pipe (31) and the hopper (3).

2. The automatic feeding machine for plastic bottle processing according to claim 1, characterized in that: A transmission rod (7) is symmetrically and vertically slidably arranged on the hopper (3), and movable columns (71) are arranged at both ends of the transmission rod (7). The movable columns (71) are movably arranged on the blocking plate (4) and the rotating ring (6) through the movable columns (71), and the blocking plate (4) is driven to flip so as to drive the rotating ring (6) to rotate through the transmission rod (7).

3. The automatic feeding machine for plastic bottle processing according to claim 2, characterized in that: The first end of the transmission rod (7) is provided with a secondary hook portion (73), and the conveyor belt (2) moves so that the overlapping hook (51) overlaps and drives the blocking plate (4) to rotate and then disengages, and then the overlapping hook (51) moves to overlap the secondary hook portion (73) and then disengages again.

4. The automatic feeding machine for plastic bottle processing according to claim 3, characterized in that: The inner circumference array of the rotating ring (6) is provided with a partially spiral inclined groove (62), the piston of the material blocking rod (8) is slidably arranged in the inclined groove (62), and the material blocking rod (8) is provided with a spray hole (81) connected to the inclined groove (62).

5. The automatic feeding machine for plastic bottle processing according to claim 4, characterized in that: The inclined slide grooves (62) are arranged in groups at intervals along the axial direction of the rotating ring (6), and the inclination of each group of inclined slide grooves (62) arranged in the axial direction of the rotating ring (6) increases gradually.

6. The automatic feeding machine for plastic bottle processing according to claim 1, characterized in that: The blocking plate (4) is provided with a clamping groove (41) and a lap groove (42). The blocking plate (4) is in a default state so that the clamping portion (35) on the hopper (3) is clamped in the clamping groove (41). The conveyor belt (2) moves so that the lap hook (51) is lapped in the lap groove (42) so that the clamping portion (35) is separated from the clamping groove (41).

7. The automatic feeding machine for plastic bottle processing according to claim 1, characterized in that: The conveyor belt (2) is arranged in a waist-shaped manner on a rotating roller (22) rotatably arranged on the base frame (1); the conveyor belt (2) moves so that the flexible supporting portion (52) moves to the peripheral side of the rotating roller (22) and is pulled in an arc shape so that the lap joint (5) slides and squeezes the vertical stop portion (21) to bend vertically downward in an arc shape.

8. The automatic feeding machine for processing plastic bottles according to claim 2, characterized in that: The blocking plate (4) is symmetrically provided with a first driving slot (43) arranged in parallel with the blocking plate (4); a partially spiral second driving slot (61) is arranged in a circular array on the outer side of the rotating ring (6); and the movable column (71) is movably arranged in the first driving slot (43) and the second driving slot (61), respectively.

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