Raw material conveying device for plastic container production

Abstract

According to the raw material conveying device for plastic container production, the crushing mechanism and the dual-purpose channel are arranged, defective parts can be crushed, the resource utilization efficiency is improved, plastic raw materials can be put into the dual-purpose channel, use is flexible, the defective parts can be fully crushed through two times of crushing of the crushing mechanism, and the production efficiency is improved. Then through a preliminary heating function formed by the airflow mechanism and a baking and rolling function of the pretreatment mechanism, waste heat generated during mold opening of the mold bin is utilized, the power consumed by heating and melting of the injection unit is reduced, the energy-saving purpose is effectively achieved, the crushed plastic fragments are more easily treated by the injection unit of the injection molding machine, and the injection molding efficiency is improved. The problem that defective parts produced by existing factories cannot be treated, and resources are wasted is effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of plastic product processing, in particular to a raw material conveying device for producing plastic containers. Background Art

[0002] Plastic container production is to put the plastic raw materials into the injection unit of the injection molding machine, heat them by the heating mechanism in the injection unit, and inject them into the mold. After cooling, the required plastic container is finally formed. In the existing injection molding machine, it is usually necessary to purchase the required plastic particles, mix the corresponding masterbatch or other auxiliary materials, pour them into the feed channel, and then drop them into the injection unit;

[0003] However, the existing injection molding machines can only put in plastic particles when feeding raw materials, and a large number of defective parts will accumulate during mass production. The existing injection molding machines do not have the function of using defective parts as raw materials, and the defective parts cannot be transported into the injection molding machines, resulting in a waste of resources. Therefore, a raw material conveying device for plastic container production is needed to solve this problem. Summary of the invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a raw material conveying device for producing plastic containers.

[0005] The present invention provides a raw material conveying device for plastic container production, which is used to convey raw materials to an injection molding machine. The injection molding machine includes an injection unit and a mold bin, and a feed channel provided on the injection unit, including:

[0006] The crushing mechanism comprises a crushing main box, the bottom of the crushing main box is connected with the feeding channel, a crushing cylinder is arranged in the middle of the crushing main box, a feeding slot is arranged at the top of the crushing cylinder, a discharging slot is arranged at the bottom of the crushing cylinder, a screen is arranged in the discharging slot, the axial direction of the crushing cylinder is a first direction, a first driving shaft is coaxially arranged inside the crushing cylinder, a plurality of blade groups are arranged outside the first driving shaft along the first direction, each of the blade groups comprises a plurality of movable blade heads arranged around the first driving shaft, a plurality of fixed blade heads inserted into the crushing cylinder are arranged on the inner walls on both sides of the crushing main box along the second direction, the first direction is perpendicular to the second direction, and the fixed blade heads and the blade groups are arranged alternately;

[0007] The second cutting assembly comprises an arc-shaped plate arranged at the bottom of the pulverizing cylinder, the arc-shaped plate is provided with a plurality of cutting channels, and the two side walls of each cutting channel are respectively provided with a first cutting knife and a second cutting knife, and the ends of the first cutting knife and the second cutting knife close to each other are blade portions;

[0008] The driving mechanism is arranged on the crushing main box body, and is used to drive the first driving shaft to rotate, drive the arc plate to swing around the first axis, the first driving shaft drives each of the movable cutter heads to rotate, and the arc plate drives the first cutting knife and the second cutting knife to cut the plastic fragments.

[0009] According to the technical solution provided in the embodiment of the present application, the driving mechanism includes a first motor disposed outside the main crushing box, and the first driving shaft extends through the main crushing box and is connected to the output shaft of the first motor;

[0010] A sliding groove is provided on the side wall of the main crushing box near the first motor at a position corresponding to the arc plate, and one end of the arc plate extends out of the main crushing box through the sliding groove. A conversion component is also provided on the first drive shaft near the first motor end, and the first drive shaft drives the arc plate to swing around the first axis through the conversion component.

[0011] According to the technical solution provided in the embodiment of the present application, the conversion assembly includes a driving disc sleeved outside the first driving shaft, a plurality of driving teeth are arranged around the side surface of the driving disc, the arc length formed by each of the driving teeth is one third of the circumference of the outer edge of the driving disc, a transmission rectangular frame is arranged outside the driving disc, the top wall and the bottom wall inside the transmission rectangular frame are both provided with driven teeth, and each of the driving teeth can be meshed with the corresponding driven teeth for transmission;

[0012] An intermediate rack is provided at the bottom end of the transmission rectangular frame, an intermediate gear meshing with the intermediate rack is provided on the outer side wall of the main crushing box body, and an arc-shaped inner gear ring meshing with the intermediate gear is provided on the top surface of the arc-shaped plate.

[0013] According to the technical solution provided in the embodiment of the present application, a dual-purpose channel is provided at the top of the feed channel, a spare port is provided at the top of the dual-purpose channel, and a discharge channel connected to the bottom of the main crushing box is provided in the middle of the dual-purpose channel.

[0014] According to the technical solution provided in the embodiment of the present application, an auxiliary material mechanism is provided in the middle part of the discharge channel, and the auxiliary material mechanism includes an auxiliary material channel penetrating the top surface of the discharge channel, and a material storage funnel is provided at the top of the auxiliary material channel. An inclined second baffle is provided at the top surface of the inner top of the discharge channel corresponding to the position below the auxiliary material channel, and the second baffle guides the auxiliary material to flow toward the dual-purpose channel side.

[0015] According to the technical solution provided in the embodiment of the present application, a pretreatment mechanism is provided between the auxiliary material mechanism at the bottom of the discharge channel and the dual-purpose channel, and the pretreatment mechanism is used to pre-bake the plastic fragments.

[0016] According to the technical solution provided in the embodiment of the present application, the pretreatment mechanism includes a sealing plate detachably installed at the bottom of the discharge channel, a plurality of heating rods are evenly distributed on the top surface of the sealing plate near the end of the dual-purpose channel, a plurality of third motors are provided on the bottom surface of the other end, and a connecting shaft penetrating deep into the discharge channel is installed on the output shaft end of the third motor, and a stirring plate is provided on the side surface of the connecting shaft.

[0017] According to the technical solution provided in the embodiment of the present application, a transmission mechanism is provided on one side of the crushing main box body, and the transmission mechanism includes a protective shell provided on one side of the crushing main box body along the first direction, and the top of the protective shell is connected with the inside of the crushing main box body through a connecting channel, and the corresponding connecting channel on the top of the crushing main box body is provided with first baffles on both sides along the second direction, and the bottom ends of the two first baffles are connected to the top ends of both sides of the feed slot, and the bottom end of the protective shell is flush with the bottom end of the injection molding machine, and second rollers are provided on the top and bottom of the protective shell, and the axis extension direction of each of the second rollers is the first direction, and a second motor is provided outside the protective shell, and the output shaft of the second motor is connected to a second roller for transmission, and the two second rollers are covered with a conveyor belt, and push plates are evenly arranged on the conveyor belt, and a stacking channel is provided on the top of the bottom of the protective shell, and the inside of the stacking channel is used to store defective parts;

[0018] The injection molding machine is also provided with an airflow mechanism, which includes a fan arranged at the top of the mold bin, an airflow duct is arranged at the top of the fan, a first branch pipe connected to the protective shell is arranged in the middle of the airflow duct, the first branch pipe and the connecting channel correspond to each other in position along the first direction, a pulsating solenoid valve is arranged on the first branch pipe, and the opening of the defective part faces the first branch pipe side.

[0019] According to the technical solution provided in the embodiment of the present application, the conveyor belt is evenly distributed with a number of rubber strips along the first direction, the bottom end of the push plate is connected to the top surface of the rubber strip, a second branch pipe is also provided at the end of the airflow duct, a third branch pipe is provided at the position between the two rubber strips corresponding to the second branch pipe, the third branch pipe extends into the interior of the protective shell away from the end of the second branch pipe, and a wiping cloth is provided on the side surface of the push plate close to the defective part.

[0020] According to the technical solution provided in the embodiment of the present application, a maintenance port is provided in the middle of the protective shell, and the wiping cloth is detachably connected to the side surface of the push plate by Velcro.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. The crushing mechanism and dual-purpose channel are set up, which can not only crush defective parts to improve resource utilization efficiency, but also put plastic raw materials into the dual-purpose channel, which is flexible to use. The crushing mechanism realizes the initial cutting function through the rotation of multiple moving cutter heads and the cooperation with the fixed cutter head. After the initial cutting, some slender plastic fragments still fall from the screen, and then through the swing of the arc plate, the first cutting knife and the second cutting knife are used to cut and process, so as to realize the secondary cutting, so that the plastic fragments are crushed more evenly, which is convenient for the subsequent better melting treatment;

[0023] 2. A driving mechanism is provided. The first motor can not only drive the first driving shaft to rotate, but also drive the arc plate to swing through the conversion component, so as to realize the synchronous crushing and cutting of the two times, thereby ensuring the crushing efficiency. In addition, the conversion component pushes the driven teeth in the upper half of the transmission rectangular frame through the driving teeth, drives the transmission rectangular frame to move, and then pushes the driven teeth in the lower half of the transmission rectangular frame, drives the transmission rectangular frame to move back, realizes the reciprocating motion of the transmission rectangular frame and the middle rack, further drives the middle gear to swing, and the middle gear drives the arc inner gear ring to move back and forth, thereby realizing the reciprocating motion of the arc plate.

[0024] 3. A transmission mechanism is provided, and a simple lifting machine structure is formed by a transmission belt, a second motor, a push plate and a protective shell. The hot air flow in the mold bin is extracted by the fan of the air flow mechanism, and the defective parts are pushed from the connecting channel into the main crushing box through the first branch pipe. This not only achieves the purpose of sending the defective parts into the main crushing box, but also because the opening of the defective parts faces the first branch pipe, the hot air flow extracted by the fan will enter the interior of the defective parts, achieving the purpose of preliminary heating, which is convenient for subsequent processing;

[0025] 4. A plurality of rubber strips are arranged on the conveyor belt, and a push plate is arranged on the rubber strips. A plurality of third branch pipes connected with the fan are arranged at the bottom of the protective shell, and a wiping cloth is arranged on the push plate. The hot air flow output outward by the third branch pipe moves upward along the gap between the rubber strips, which can not only drive the defective parts to rotate, but also fill the interior of the protective shell with hot air flow, thereby providing an insulating environment for preliminary heating. As the defective parts rotate, the wiping cloth can wipe the dust or water stains on the outer surface of the defective parts. Furthermore, the wiping cloth can be detachably installed by Velcro, and is provided with a maintenance port and a maintenance cover to facilitate the replacement of the wiping cloth.

[0026] 5. A pretreatment component is set up. After preliminary heating, the plastic fragments are randomly sent into the evenly arranged heating rods through the stirring plate. The plastic fragments are heated by the heating rods, so that the flat plastic fragments are heated and rolled up to form irregular balls. This not only realizes heating pretreatment and improves the heating and melting efficiency of the subsequent injection molding machine, but also avoids the flat plastic fragments from being easily stuck at the front end of the injection unit;

[0027] To sum up, the two crushings of the crushing mechanism can fully crush the defective parts. The preliminary heating function formed by the airflow mechanism and the rolling function of the pretreatment mechanism utilize the residual heat when the mold bin is opened, which reduces the power consumed by the heating and melting of the injection unit. It not only effectively achieves the purpose of energy saving, but also makes the crushed plastic fragments easier to be processed by the injection unit of the injection molding machine, effectively solving the problem that the defective parts produced by the existing factory cannot be processed, resulting in waste of resources.

[0028] It should be understood that the contents described in the summary of the invention are not intended to limit the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0030] Figure 1 A schematic structural diagram of a raw material conveying device for producing plastic containers provided in an embodiment of the present application;

[0031] Figure 2 A schematic diagram of the installation structure of a discharge channel in a raw material conveying device for plastic container production provided in an embodiment of the present application;

[0032] Figure 3 A schematic diagram of a discharging structure of a crushing mechanism in a raw material conveying device for producing plastic containers provided in an embodiment of the present application;

[0033] Figure 4 for Figure 3 A schematic diagram of the local enlarged structure of the middle A area;

[0034] Figure 5 A schematic diagram of the installation structure of a heating rod in a raw material conveying device for plastic container production provided in an embodiment of the present application;

[0035] Figure 6 A schematic diagram of the feeding structure of a crushing mechanism in a raw material conveying device for producing plastic containers provided in an embodiment of the present application;

[0036] Figure 7 A schematic diagram of the structure of a driving mechanism in a raw material conveying device for producing plastic containers provided in an embodiment of the present application;

[0037] Figure 8 A schematic diagram of the installation structure of the third branch pipe in a raw material conveying device for plastic container production provided in an embodiment of the present application;

[0038] Fig. 9A schematic diagram of the installation structure of a connecting channel in a raw material conveying device for plastic container production provided in an embodiment of the present application;

[0039] Fig.10 A schematic cross-sectional structure diagram of the bottom of a transmission mechanism in a raw material conveying device for producing plastic containers provided in an embodiment of the present application;

[0040] Fig.11 for Fig.10 Schematic diagram of the local enlarged structure of area B in the middle.

[0041] Numbers in the figure:

[0042] 1. Injection molding machine; 11. Mold compartment; 12. Injection unit; 13. Feed channel;

[0043] 2. Dual-purpose channel;

[0044] 3. Crushing mechanism; 31. Crushing main box; 32. Crushing cylinder; 33. Fixed blade; 34. First drive shaft; 35. Mounting seat; 36. Moving blade; 37. Feeding slot; 38. Discharging slot; 39. Screen; 310. Curved plate; 311. Cutting channel; 312. First cutting knife; 313. Second cutting knife; 314. First roller; 315. First baffle; 316. Connecting channel; 317. Box cover; 318. First bracket; 319. Sliding slot;

[0045] 4. Discharge channel;

[0046] 5. Transmission mechanism; 51. Protection housing; 52. Second motor; 53. Second roller; 54. Transmission belt; 55. Rubber strip; 56. Push plate; 57. Maintenance port; 58. Maintenance cover; 59. Velcro; 510. Wiping cloth; 511. Stacking channel; 512. Second bracket;

[0047] 6. airflow mechanism; 61. fan; 62. airflow duct; 63. first branch pipe; 64. pulsating solenoid valve; 65. second branch pipe; 66. third branch pipe;

[0048] 7. Auxiliary material mechanism; 71. Auxiliary material channel; 72. Material storage hopper; 73. Second baffle;

[0049] 8. driving mechanism; 81. first motor; 82. driving disc; 83. transmission rectangular frame; 84. driven gear; 85. driving gear; 86. intermediate rack; 87. intermediate gear; 88. arc-shaped inner gear ring;

[0050] 9. Pretreatment mechanism; 91. Mounting port; 92. Sealing plate; 93. Heating rod; 94. Third motor; 95. Connecting shaft; 96. Stirring plate; 97. Mounting edge. DETAILED DESCRIPTION

[0051] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It should also be noted that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0052] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0053] Please refer to Figures 1 to 11 The embodiment of the present invention provides a raw material conveying device for producing plastic containers, which is used to convey raw materials to an injection molding machine 1. The injection molding machine 1 includes an injection unit 12 and a mold bin 11, and a feed channel 13 provided on the injection unit 12, including:

[0054] The crushing mechanism 3 includes a crushing main box 31, the bottom of the crushing main box 31 is connected to the feed channel 13, a crushing cylinder 32 is provided in the middle of the crushing main box 31, a feed slot 37 is provided at the top of the crushing cylinder 32, a discharge slot 38 is provided at the bottom of the crushing cylinder 32, a screen 39 is provided in the discharge slot 38, the axial direction of the crushing cylinder 32 is a first direction, a first driving shaft 34 is coaxially arranged inside the crushing cylinder 32, a plurality of blade groups are arranged outside the first driving shaft 34 along the first direction, each blade group includes a plurality of movable blade heads 36 arranged around the first driving shaft 34, and a plurality of fixed blade heads 33 inserted into the crushing cylinder 32 are provided on the inner walls on both sides of the crushing main box 31 along the second direction, the first direction is perpendicular to the second direction, and the fixed blade heads 33 and the blade groups are arranged in a staggered manner; wherein, the first direction is Figure 1 The front-to-back direction in the second direction is Figure 1 In the left and right directions, the first drive shaft 34 is covered with a first roller 314, and a mounting seat 35 is provided on the outer surface of the first roller 314 at a position corresponding to the movable cutter head 36, and the movable cutter head 36 is mounted on the corresponding mounting seat 35 away from the end of the first drive shaft 34;

[0055] The second cutting assembly includes an arc plate 310 disposed at the bottom of the crushing cylinder 32, and a plurality of cutting channels 311 are disposed on the arc plate 310. A first cutting knife 312 and a second cutting knife 313 are disposed on the two side walls of each cutting channel 311, and the ends of the first cutting knife 312 and the second cutting knife 313 close to each other are blade portions;

[0056] The driving mechanism 8 is provided on the crushing main box 31, and is used to drive the first driving shaft 34 to rotate, drive the arc plate 310 to swing around the first axis, the first driving shaft 34 drives each movable cutter head 36 to rotate, and the arc plate 310 drives the first cutting knife 312 and the second cutting knife 313 to cut the plastic fragments;

[0057] like Figure 3 , Figure 4 and Figure 6 As shown, the crushing mechanism 3 forms a crushing structure of a common crusher through the rotation of multiple movable blade heads 36 and the cooperation with the fixed blade head 33. After the initial crushing, some slender plastic fragments still fall from the screen 39, and then through the swing of the arc plate 310, the first cutting knife 312 and the second cutting knife 313 are used to cut and process the plastic fragments, thereby realizing secondary cutting, so that the plastic fragments are crushed more evenly, which is convenient for subsequent better melting processing.

[0058] In some embodiments, the driving mechanism 8 includes a first motor 81 disposed outside the main crushing box 31, and the first driving shaft 34 extends through the main crushing box 31 and is connected to the output shaft of the first motor 81;

[0059] A sliding groove 319 is provided at a position of the arc plate 310 on the side wall of the main crushing box 31 close to the first motor 81. One end of the arc plate 310 extends out of the main crushing box 31 through the sliding groove 319. A conversion assembly is also provided at the end of the first drive shaft 34 close to the first motor 81. The first drive shaft 34 drives the arc plate 310 to swing around the first axis through the conversion assembly.

[0060] like Figure 3 , Figure 6 and Figure 7 As shown, the first motor 81 can not only drive the first driving shaft 34 to rotate, but also drive the arc plate 310 to swing through the conversion component, so as to realize the two crushing and cutting operations synchronously and ensure the crushing efficiency.

[0061] In some embodiments, the conversion assembly includes a driving disc 82 sleeved on the outside of the first driving shaft 34, and a plurality of driving teeth 85 are arranged around the side surface of the driving disc 82, and the length of the arc formed by each driving tooth 85 is one third of the circumference of the outer edge of the driving disc 82, and a transmission rectangular frame 83 is arranged outside the driving disc 82, and the top wall and the bottom wall inside the transmission rectangular frame 83 are both provided with driven teeth 84, and each driving tooth 85 can be meshed with the corresponding driven tooth 84 for transmission;

[0062] An intermediate rack 86 is provided at the bottom end of the transmission rectangular frame 83, an intermediate gear 87 meshing with the intermediate rack 86 is provided on the outer wall of the main crushing box 31, and an arc-shaped inner gear ring 88 meshing with the intermediate gear 87 is provided on the top surface of the arc-shaped plate 310;

[0063] like Figure 3 , Figure 6 and Figure 7As shown, since the length of the arc formed by each driving tooth 85 is one-third of the circumference of the outer edge of the driving disc 82, each driving tooth 85 will only contact one of the driven teeth 84 at the top or bottom of the transmission rectangular frame 83 at the same time, and then the driving tooth 85 pushes the driven teeth 84 in the upper half of the transmission rectangular frame 83 to drive the transmission rectangular frame 83 to move, and then pushes the driven teeth 84 in the lower half of the transmission rectangular frame 83 to drive the transmission rectangular frame 83 to move back, so as to realize the reciprocating motion of the transmission rectangular frame 83 and the middle rack 86, further drive the middle gear 87 to swing, and the middle gear 87 drives the arc-shaped inner gear ring 88 to reciprocate, so as to realize the reciprocating motion of the arc plate 310. Furthermore, optionally, a plurality of door-type limiting rods are provided, and the two ends of the door-type limiting rods are connected to the outer wall of the crushing main box body 31, and the middle part of the door-type limiting rods is in contact with the transmission rectangular frame 83 away from the crushing main box body 31, so as to avoid the transmission rectangular frame 83 from falling off, and ensure that the position of the driven teeth 84 does not change and the meshing state is continuously maintained.

[0064] In some embodiments, a dual-purpose channel 2 is provided at the top of the feed channel 13, a spare port is provided at the top of the dual-purpose channel 2, and a discharge channel 4 connected to the bottom of the main crushing box 31 is provided in the middle of the dual-purpose channel 2;

[0065] like Figure 1 , Figure 2 and Figure 3 As shown, not only can defective parts be crushed to improve resource utilization efficiency, but plastic raw materials can also be put into the spare port at the top of the dual-purpose channel 2, which is flexible to use.

[0066] In some embodiments, Figure 1 and Figure 2 As shown, a box cover 317 is detachably installed on the top of the main crushing box body 31, which is convenient for inspecting the inside of the main crushing box body 31. Furthermore, a first bracket 318 is also provided on the base of the injection molding machine 1, and the main crushing box body 31 is installed on the first bracket 318 to ensure stability during operation.

[0067] In some embodiments, an auxiliary material mechanism 7 is provided in the middle of the discharge channel 4, and the auxiliary material mechanism 7 includes an auxiliary material channel 71 penetrating the top surface of the discharge channel 4, and a material storage funnel 72 is provided at the top of the auxiliary material channel 71. An inclined second baffle 73 is provided at a position below the auxiliary material channel 71 on the top surface of the discharge channel 4, and the second baffle 73 guides the auxiliary material to flow toward the dual-purpose channel 2.

[0068] like Figure 3 As shown, the auxiliary material is stored and put into the auxiliary material through the auxiliary material channel 71 and the material storage funnel 72, and then the plastic fragments and the auxiliary material are separated by the second baffle 73 to avoid the situation that the auxiliary material cannot fall.

[0069] In some embodiments, a pretreatment mechanism 9 is provided between the auxiliary material mechanism 7 and the dual-purpose channel 2 at the bottom of the discharge channel 4, and the pretreatment mechanism 9 is used to pre-dry the plastic fragments; Figure 3 and Figure 5 As shown, through pre-baking treatment, the flat plastic fragments are heated and rolled up to form irregular balls, which is beneficial to improving the heating and melting efficiency of the subsequent injection molding machine 1 and avoiding the flat plastic fragments from being easily stuck at the front end of the injection unit 12.

[0070] In some embodiments, the pretreatment mechanism 9 includes a sealing plate 92 detachably mounted on the bottom of the discharge channel 4, a plurality of heating rods 93 are evenly arranged on the top surface of the sealing plate 92 near the end of the dual-purpose channel 2, a plurality of third motors 94 are arranged on the bottom surface of the other end, a connecting shaft 95 penetrating deep into the discharge channel 4 is installed at the output shaft end of the third motor 94, and a stirring plate 96 is arranged on the side surface of the connecting shaft 95;

[0071] like Figure 3 and Figure 5 As shown, the stirring plate 96 is driven to rotate by the third motor 94, and the auxiliary materials and plastic fragments are randomly sent to the heating rod 93 for driving. The auxiliary materials and plastic fragments are evenly distributed after passing through the heating rod 93, which can not only make the flat plastic fragments fully heated and rolled up, but also achieve uniform mixing of the auxiliary materials and plastic fragments, thereby improving the mixing uniformity of the auxiliary materials. Among them, a mounting port 91 is provided at the bottom of the discharge channel 4 corresponding to the position of the sealing plate 92, and the sealing plate 92 is inserted into the mounting port 91, and the top surface of the sealing plate 92 is flush with the ground inside the discharge channel 4 to ensure the stable movement of the plastic fragments, and a mounting edge 97 is arranged around the bottom edge of the sealing plate 92, and the mounting edge 97 is detachably connected to the bottom of the discharge channel 4 to realize the removal, replacement and maintenance of the sealing plate 92, the heating rod 93 and other structures, and optionally, a plurality of screw holes are provided around the mounting port 91 at the bottom of the discharge channel 4, and through holes are provided on the mounting edge 97 corresponding to each screw hole, and bolts are passed through the through holes and threadedly connected to the screw holes to achieve the purpose of detachability.

[0072] In some embodiments, a transmission mechanism 5 is provided on one side of the pulverizing main box 31, and the transmission mechanism 5 includes a protective shell 51 provided on one side of the pulverizing main box 31 along the first direction, and the top of the protective shell 51 is connected to the inside of the pulverizing main box 31 through a connecting channel 316, and the corresponding connecting channel 316 on the top of the pulverizing main box 31 is provided with first baffles 315 on both sides along the second direction, and the bottom ends of the two first baffles 315 are connected to the top ends of both sides of the feed slot 37, and the bottom end of the protective shell 51 is flush with the bottom end of the injection molding machine 1, and second rollers 53 are provided on the top and bottom of the protective shell 51, and the axis extension direction of each second roller 53 is the first direction, and a second motor 52 is provided outside the protective shell 51, and the output shaft of the second motor 52 is transmission-connected to a second roller 53, and the two second rollers 53 are covered with a conveyor belt 54, and push plates 56 are evenly arranged on the conveyor belt 54, and a stacking channel 511 is provided on the top of the bottom of the protective shell 51, and the inside of the stacking channel 511 is used to store defective parts;

[0073] The injection molding machine 1 is also provided with an airflow mechanism 6, which includes a fan 61 disposed at the top of the mold bin 11, an airflow duct 62 disposed at the top of the fan 61, a first branch pipe 63 connected to the protective housing 51 disposed in the middle of the airflow duct 62, the first branch pipe 63 and the connecting channel 316 are located correspondingly in the first direction, a pulsating solenoid valve 64 is disposed on the first branch pipe 63, and the opening of the defective part faces the first branch pipe 63 side;

[0074] like Figure 8 , Fig. 9 and Fig.10 As shown, a simple elevator structure is formed by a conveyor belt 54, a second motor 52, a push plate 56 and a protective shell 51, and then the hot air flow in the mold bin 11 is extracted by the fan 61 of the airflow mechanism 6, and the defective parts are pushed from the connecting channel 316 into the main crushing box 31 through the first branch pipe 63. This not only achieves the purpose of sending the defective parts into the main crushing box 31, but also because the opening of the defective parts faces the first branch pipe 63, the hot air flow extracted by the fan 61 will enter the interior of the defective parts, which serves the purpose of preliminary heating and is convenient for subsequent processing.

[0075] In some embodiments, Figure 1 and Figure 2 As shown, a second bracket 512 is further provided on the base of the injection molding machine 1 , and the protective shell 51 is installed on the second bracket 512 to ensure the stability of the protective shell 51 during operation.

[0076] In some embodiments, the conveyor belt 54 is evenly distributed with a plurality of rubber strips 55 along the first direction, the bottom end of the push plate 56 is connected to the top surface of the rubber strip 55, a second branch pipe 65 is further provided at the end of the airflow duct 62, a third branch pipe 66 is provided at a position between the second branch pipe 65 and corresponding to the two rubber strips 55, the third branch pipe 66 extends into the protective housing 51 away from the end of the second branch pipe 65, and a wiping cloth 510 is provided on the side surface of the push plate 56 close to the defective part;

[0077] like Figure 8 and Fig.10 As shown, the fan 61 draws the hot air flow in the mold bin 11, transports it to the second branch pipe 65 through the first branch pipe 63, and then distributes it to the third branch pipe 66 and sends it into the interior of the protective shell 51. The hot air flow output outward by the third branch pipe 66 moves upward along the gap between the rubber strips 55, which not only promotes the rotation of the defective parts, but also fills the interior of the protective shell 51 with hot air flow, providing an insulating environment for preliminary heating. As the defective parts rotate, the wiping cloth 510 can wipe the dust or water stains on the outer surface of the defective parts.

[0078] In some embodiments, a maintenance port 57 is provided in the middle of the protective housing 51, and the wiping cloth 510 is detachably connected to the side surface of the push plate 56 via a Velcro 59;

[0079] like Fig.10 and Fig.11 As shown, the maintenance port 57 can be passed through to separate the Velcro 59, and the wiping cloth 510 can be removed for replacement. Furthermore, a maintenance cover 58 is provided at the maintenance port 57 to reduce the entry of external dust and air into the protective shell 51 and reduce the overflow of hot air flow inside the protective shell 51.

[0080] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0081] In the description of this specification, the description of the terms "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0082] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A raw material conveying device for producing plastic containers, used for conveying raw materials to an injection molding machine (1), the injection molding machine (1) comprising an injection unit (12) and a mold bin (11), and a feed channel (13) provided on the injection unit (12), characterized in that: include: The crushing mechanism (3) comprises a crushing main box (31), the bottom of the crushing main box (31) is connected to the feeding channel (13), a crushing cylinder (32) is provided in the middle of the crushing main box (31), a feeding slot (37) is provided at the top of the crushing cylinder (32), a discharge slot (38) is provided at the bottom of the crushing cylinder (32), a screen (39) is provided in the discharge slot (38), the axial direction of the crushing cylinder (32) is a first direction, and the crushing cylinder (32) is provided with a first direction. A first drive shaft (34) is coaxially arranged inside the main crushing box (32), a plurality of blade groups are arranged outside the first drive shaft (34) along a first direction, each of the blade groups comprises a plurality of movable blade heads (36) arranged around the first drive shaft (34), a plurality of fixed blade heads (33) are arranged on the inner walls on both sides of the main crushing box (31) along a second direction and are inserted into the crushing cylinder (32), the first direction and the second direction are perpendicular to each other, and the fixed blade heads (33) and the blade groups are arranged in a staggered manner; The second cutting assembly comprises an arc plate (310) arranged at the bottom of the pulverizing cylinder (32), the arc plate (310) being provided with a plurality of cutting channels (311), and a first cutting knife (312) and a second cutting knife (313) being respectively arranged on the two side walls of each cutting channel (311), and the ends of the first cutting knife (312) and the second cutting knife (313) close to each other are blade portions; The driving mechanism (8) is arranged on the pulverizing main box (31) and is used to drive the first driving shaft (34) to rotate, thereby driving the arc plate (310) to swing around the first axis, the first driving shaft (34) drives each of the movable cutter heads (36) to rotate, and the arc plate (310) drives the first cutting knife (312) and the second cutting knife (313) to cut the plastic fragments.

2. The raw material conveying device for plastic container production according to claim 1, characterized in that: The driving mechanism (8) comprises a first motor (81) arranged outside the main crushing box (31); the first driving shaft (34) penetrates through the main crushing box (31) and is connected to the output shaft of the first motor (81); A sliding groove (319) is provided at a position of the side wall of the main crushing box (31) close to the first motor (81) corresponding to the position of the arc plate (310); one end of the arc plate (310) extends out of the main crushing box (31) through the sliding groove (319); a conversion component is also provided at the end of the first drive shaft (34) close to the first motor (81); the first drive shaft (34) drives the arc plate (310) to swing around the first axis through the conversion component.

3. The raw material conveying device for plastic container production according to claim 2, characterized in that: The conversion assembly comprises a driving disc (82) sleeved on the outside of the first driving shaft (34); a plurality of driving teeth (85) are arranged around the side surface of the driving disc (82); the length of the arc formed by each of the driving teeth (85) is one third of the circumference of the outer edge of the driving disc (82); a transmission rectangular frame (83) is arranged outside the driving disc (82); the top wall and the bottom wall inside the transmission rectangular frame (83) are both provided with driven teeth (84); each of the driving teeth (85) can be meshed with the corresponding driven teeth (84) for transmission; The bottom end of the transmission rectangular frame (83) is provided with an intermediate rack (86), the outer side wall of the main crushing box (31) is provided with an intermediate gear (87) meshing with the intermediate rack (86), and the top surface of the arc plate (310) is provided with an arc-shaped inner gear ring (88) meshing with the intermediate gear (87).

4. The raw material conveying device for plastic container production according to claim 1, characterized in that: A dual-purpose channel (2) is provided at the top of the feed channel (13), a spare port is provided at the top of the dual-purpose channel (2), and a discharge channel (4) communicating with the bottom of the main crushing box (31) is provided in the middle of the dual-purpose channel (2).

5. The raw material conveying device for plastic container production according to claim 4, characterized in that: An auxiliary material mechanism (7) is provided in the middle of the discharge channel (4), the auxiliary material mechanism (7) comprising an auxiliary material channel (71) penetrating the top surface of the discharge channel (4), a material storage funnel (72) being provided at the top of the auxiliary material channel (71), and an inclined second baffle (73) being provided at a position below the auxiliary material channel (71) on the top surface of the discharge channel (4), the second baffle (73) guiding the auxiliary material to flow toward the dual-purpose channel (2).

6. The raw material conveying device for producing plastic containers according to claim 5, characterized in that: A pre-treatment mechanism (9) is provided between the auxiliary material mechanism (7) and the dual-purpose channel (2) at the bottom of the discharge channel (4), and the pre-treatment mechanism (9) is used to pre-dry the plastic fragments.

7. The raw material conveying device for plastic container production according to claim 6, characterized in that: The pretreatment mechanism (9) comprises a sealing plate (92) detachably mounted on the bottom of the discharge channel (4); a plurality of heating rods (93) are evenly arranged on the top surface of the sealing plate (92) near the end of the dual-purpose channel (2); a plurality of third motors (94) are arranged on the bottom surface of the other end; a connecting shaft (95) penetrating deep into the discharge channel (4) is mounted on the output shaft end of the third motor (94); a stirring plate (96) is arranged on the side surface of the connecting shaft (95).

8. The raw material conveying device for plastic container production according to claim 1, characterized in that: A transmission mechanism (5) is provided on one side of the pulverizing main box (31), and the transmission mechanism (5) comprises a protective shell (51) provided on one side of the pulverizing main box (31) along a first direction, the top of the protective shell (51) is connected to the inside of the pulverizing main box (31) through a connecting channel (316), and first baffles (315) are provided on both sides of the corresponding connecting channel (316) at the top of the pulverizing main box (31) along a second direction, and the bottom ends of the two first baffles (315) are connected to the top ends of both sides of the feed slot (37), and the bottom end of the protective shell (51) is connected to the bottom of the injection molding machine (1). The ends are flush, the top and bottom of the protective shell (51) are both provided with second rollers (53), the axis of each second roller (53) extends in the first direction, a second motor (52) is provided outside the protective shell (51), the output shaft of the second motor (52) is transmission-connected to a second roller (53), a transmission belt (54) is sleeved outside the two second rollers (53), and push plates (56) are evenly arranged on the transmission belt (54), a stacking channel (511) is provided at the top of the bottom of the protective shell (51), and the inside of the stacking channel (511) is used to store defective parts; The injection molding machine (1) is also provided with an airflow mechanism (6), the airflow mechanism (6) comprising a fan (61) arranged at the top of the mold bin (11), an airflow duct (62) being arranged at the top of the fan (61), a first branch pipe (63) being arranged in the middle of the airflow duct (62) and being connected to the protective shell (51), the first branch pipe (63) and the connecting channel (316) corresponding in position along the first direction, a pulsating solenoid valve (64) being arranged on the first branch pipe (63), and the opening of the defective part is facing the side of the first branch pipe (63).

9. The raw material conveying device for plastic container production according to claim 8, characterized in that: The conveyor belt (54) is evenly distributed with a plurality of rubber strips (55) along the first direction; the bottom end of the push plate (56) is connected to the top surface of the rubber strip (55); a second branch pipe (65) is also provided at the end of the airflow duct (62); a third branch pipe (66) is provided at a position between two rubber strips (55) corresponding to the second branch pipe (65); the third branch pipe (66) extends into the interior of the protective shell (51) away from the end of the second branch pipe (65); and a wiping cloth (510) is provided on the side surface of the push plate (56) close to the defective part.

10. The raw material conveying device for producing plastic containers according to claim 9, characterized in that: A maintenance port (57) is provided in the middle of the protective shell (51), and the wiping cloth (510) is detachably connected to the side surface of the push plate (56) via a Velcro (59).

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