An automated plastic pallet production line

Abstract

The present application relates to injection molding production line technical field, more specifically, it relates to a kind of automatic plastic tray production line, including injection molding machine, injection molding machine includes mutually coordinated injection bench part and mold closing part, injection bench part includes glue melting cylinder and screw rod arranged in glue melting cylinder, screw rod is divided into connecting section, feeding section, compression section and high mixing section along the feeding direction, feeding section and compression section are all screw thread sections, the width of alveolar groove and the depth of alveolar groove of feeding section are all greater than the width of alveolar groove and the depth of alveolar groove of compression section, the automatic plastic tray production line of the present application can meet the production demand that plastic tray locking force is small and injection volume is large.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of injection molding production lines, and in particular to an automatic plastic tray production line. BACKGROUND

[0002] At present, plastic trays are widely used due to their long service life, good impact resistance and other advantages, and the production process of the plastic trays is an injection molding process, so an injection molding machine needs to be used in the plastic tray production line. Compared with other injection molded parts, the plastic tray is characterized in that the length and width of the plastic tray are large and the thickness is small, which leads to small mold locking force and large injection volume of the plastic tray in the injection molding process.

[0003] Since the injection molding machine of the existing plastic tray production line usually adopts a standard injection molding machine on the market, that is, small mold locking force corresponds to small injection volume, and large mold locking force corresponds to large injection volume, the injection molding machine of the existing plastic tray production line cannot well meet the production requirements of the plastic tray. SUMMARY

[0004] In order to meet the production requirements of small mold locking force and large injection volume of the plastic tray, the application provides an automatic plastic tray production line.

[0005] The automatic plastic tray production line provided by the application adopts the following technical scheme:

[0006] An automatic plastic tray production line comprises an injection molding machine, the injection molding machine comprises a shooting table part and a mold closing part which cooperate with each other, the shooting table part comprises a glue melting cylinder and a screw rod arranged in the glue melting cylinder, the screw rod is divided into a connecting section, a feeding section, a compression section and a high mixing section along a feeding direction, the feeding section and the compression section are both screw sections, and the tooth groove width and the tooth groove depth of the feeding section are both greater than the tooth groove width and the tooth groove depth of the compression section.

[0007] Preferably, the high mixing section is a non-threaded section, the high mixing section comprises a first mixing section and a second mixing section, a plurality of grooves are arranged at intervals around the rotation center of the first mixing section, and a plurality of gear rings are arranged at intervals along the axis of the second mixing section.

[0008] Preferably, the grooves are provided with two groups, one group of the grooves is communicated with the feeding end of the first mixing section, the other group of the grooves is communicated with the discharging end of the first mixing section, and the two groups of the grooves are staggered and distributed around the rotation center of the first mixing section.

[0009] Preferably, the angle between the groove and the feeding direction is 45 degrees.

[0010] Preferably, the glue melting cylinder is provided with a material port, and the left side and the right side of the material port are asymmetric structures.

[0011] Preferably, the injection volume of the injection station is 34643cm 3 , and the clamping force of the clamping part is 2500t.

[0012] Preferably, the automatic plastic tray production line further comprises a first material taking manipulator, a conveying table, a water gate shearing mechanism and a second material taking manipulator, the injection molding machine is arranged at the front end of the conveying table, the first material taking manipulator is arranged on the clamping part of the injection molding machine, the first material taking manipulator is used for taking and placing the injection molded plastic tray on the conveying table, the water gate shearing mechanism and the second material taking manipulator are arranged at the end of the conveying table, and the second material taking manipulator is used for taking away the plastic tray after the water gate is sheared.

[0013] Preferably, the automatic plastic tray production line further comprises a waste emptying device, the waste emptying device is arranged at the end of the conveying table, and the waste emptying device comprises a second frame body and a shaking mechanism arranged on the second frame body, and the shaking mechanism is used for shaking the plastic tray after the water gate is sheared on the second frame body.

[0014] Preferably, a turnover plate is further arranged on the second frame body, the bottom surface of the turnover plate is used for abutting against the plastic tray after the water gate is sheared after the turnover plate is turned over, and the bottom surface is provided with sandpaper.

[0015] Preferably, a mounting frame is arranged on the second frame body, the mounting frame comprises a fixed part and a movable part, the fixed part is fixed on the second frame body, the movable part is arranged on the fixed part in a lifting mode, and the turnover plate is hinged on the movable part.

[0016] The beneficial effects of the present application are:

[0017] 1. After the tooth groove of the feeding section is widened and deepened, the gap between the feeding section and the glue melting cylinder is increased, so that the injection volume between the screw and the glue melting cylinder is larger, so as to meet the production demand of small plastic tray clamping force and large injection volume, avoid the situation that the volume of the glue melting cylinder is too large due to unilateral increase of the injection volume of the glue melting cylinder, and improve the feeding efficiency of the feeding section, and further meet the production demand of the plastic tray;

[0018] 2. The structure of the feeding section and the compression section of the screw has a mutation effect, which can improve the plasticizing capacity of the screw;

[0019] 3. The high mixing section of the screw can fully mix the raw materials in the molten state in the first mixing section and the second mixing section, so as to improve the color mixing effect of the raw materials in the molten state;

[0020] 4. The material port of the glue melting cylinder is arranged in an asymmetric structure, which is convenient for rapid discharging of the raw materials in solid state;

[0021] 5. The current domestic plastic tray standard size is 1200mm*1000* and 1100mm*1000mm two, when the injection volume of the injection station is 34643cm 3 , the mold locking force of the mold closing part is 2500t, the injection molding machine can ensure the injection amount during injection molding and avoid excessive mold locking force;

[0022] 6. The injection molded plastic tray is taken and placed on the conveying table by the first taking and placing manipulator, and then conveyed to the water gate shearing mechanism by the conveying table, the water gate shearing mechanism shears the injection molding water gate generated in the injection molding, and the second taking and placing manipulator takes out after shearing, realizing the automatic production of the plastic tray;

[0023] 7. The setting of the shaking mechanism is used for shaking the plastic tray after shearing the water gate, so as to shake down the waste remaining in the plastic tray, and in the shaking process, the sandpaper simultaneously grinds the sharp edge of the plastic tray due to shearing the water gate, and the waste generated in the grinding process is easy to fall off due to the shaking process. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is the overall schematic diagram of the automatic plastic tray production line in the embodiment one of the application;

[0025] Figure 2 is the structural schematic diagram of the screw in the embodiment one of the application;

[0026] Figure 3 is Figure 2 the sectional view schematic diagram of the screw in the embodiment one of the application;

[0027] Figure 4 is Figure 2 the sectional view schematic diagram of the screw in the embodiment one of the application;

[0028] Figure 5 is the structural schematic diagram of the glue melting cylinder in the embodiment one of the application;

[0029] Figure 6 is Figure 5 the sectional view schematic diagram of the glue melting cylinder in the embodiment one of the application;

[0030] Figure 7 is the structural schematic diagram of the water gate shearing mechanism in the embodiment one of the application;

[0031] Figure 8 is the structural schematic diagram of the waste emptying device in the embodiment two of the application;

[0032] Explanation of reference signs: 1, injection molding machine; 11, injection station; 12, mold closing part; 2, screw; 21, connecting section; 22, feeding section; 23, compression section; 24, first mixing section; 241, groove; 25, second mixing section; 251, toothed ring; 3, glue melting cylinder; 31, material inlet; 4, material cylinder; 51, three-axis mechanical hand; 52, conveying table; 521, first frame body; 522, first roller; 53, water gate shearing mechanism; 531, scissors; 54, six-axis mechanical hand; 6, second frame body; 61, second roller; 71, sliding rail; 72, sliding block; 73, mounting seat; 74, air cylinder; 75, push plate; 76, motor; 81, turnover plate; 82, sandpaper; 83, hydraulic motor; 84, mounting frame; 841, fixed part; 842, movable part; 91, first connecting rod; 92, second connecting rod. DETAILED DESCRIPTION

[0033] The present application will be further described below with reference to the accompanying drawings. Figures 1-8 and examples.

[0034] The present embodiment discloses an automatic plastic tray production line.

[0035] The automatic plastic tray production line is used for the production and processing of plastic trays. In order to better reflect the production and processing objects and use scenarios corresponding to the present production line, and to highlight the advantages of the present production line, the characteristics of plastic trays need to be explained. Generally, trays include plastic trays and wooden trays. Compared with wooden trays, plastic trays have good integrity, are hygienic and clean, are easy to wash and disinfect, have the characteristics of light weight, no nails, acid and alkali resistance, and no mildew, etc. during use, and have a service life of 2-3 times that of wooden trays. In addition, plastic trays meet the environmental protection requirements, and waste tray materials can be recycled. The specific differences are shown in Table 1.

[0036]

[0037]

[0038] Table 1

[0039] Based on the advantages of the above-mentioned plastic pallet, the demand for plastic pallets is increasing, in order to better meet the demand for plastic pallets, it is necessary to use a plastic pallet production line to produce plastic pallets. It should be noted that since the plastic pallet is an injection molded part, the plastic pallet production line needs to use an injection molding machine. The injection molding machine is a device that uses the pushing force of a screw or plunger to inject molten plastic in a plasticized state into a closed mold cavity, and after solidification and molding, the product is obtained. Injection molding is a cyclic process, each cycle mainly includes: quantitative feeding - melting plasticization - pressure injection - mold filling cooling - mold opening and part taking, and after the plastic part is taken out, the mold is closed again and enters the next cycle. In order to realize the above process, the injection molding machine usually includes an injection part, a mold closing part, a hydraulic system and an electrical control system, and the mold cavity is provided by a mold. The selection of the injection molding machine needs to refer to two parameters, one is the clamping force required during the injection molding process of the injection molded product, and the other is the injection amount required during the injection molding process of the injection molded product. The injection amount corresponds to the injection volume of the injection molding machine. If the clamping force is insufficient, it will cause the injection molded part to have burrs. If the injection amount is insufficient, the injection molded part cannot be completely formed.

[0040] Compared with ordinary injection molded products, since the plastic pallet has small thickness and large length and width dimensions, the plastic pallet requires small clamping force and large injection amount, that is, the ratio of injection amount / clamping force of the plastic pallet used in injection molding is much larger than that of ordinary injection molded products. The standard size of the plastic pallet in China at present is 1200mm*1000* and 1100mm*1000mm, and the thickness is about 110mm. If a standard injection molding machine on the market is selected to injection mold the plastic pallet, the following two situations will occur: one is that the clamping force of the injection molding machine (such as a 2500t clamping force injection molding machine) is appropriate, but the injection amount is insufficient, which causes the plastic pallet to be unable to be injection molded, and the other is that the injection amount of the injection molding machine (such as a 3300t clamping force injection molding machine) is appropriate, but the maximum clamping force of the injection molding machine is greater than the clamping force required by the plastic pallet, which causes waste of clamping force and waste of plant space, and increases the cost. Therefore, the injection molding machine of the existing plastic pallet production line cannot well meet the production demand of the plastic pallet.

[0041] Reference Figure 1 The automatic plastic pallet production line of the present application includes an injection molding machine 1, which is a horizontal injection molding machine. The mold closing part 12 and the injection part 11 are on the same horizontal center line, and the mold is opened in the horizontal direction. The injection molding machine 1 includes a cooperating injection bench part 11 and a mold closing part 12, wherein the injection volume of the injection bench part 11 is 34643cm 3, the clamping force of the clamping part 12 is 2500 tons, and the connection between the clamping part 12 and the injection station part 11 is adjusted to make the ratio of injection volume to clamping force better correspond to the shape of the plastic tray, so as to ensure sufficient injection volume during injection molding and avoid excessive clamping force.

[0042] Referring to Figures 2 to 4 , the automatic plastic tray production line of the present application also improves the screw 2 part of the injection molding machine 1. It should be noted that, referring to Figure 5 and Figure 6 , the injection molding machine 1 also includes a glue melting cylinder 3, which is provided with a heating ring and a barrel 4 for adding raw materials to the glue melting cylinder 3, and the heating ring is used to heat the raw materials in the glue melting cylinder 3 to make the raw materials in a molten state, and the screw 2 is rotationally arranged in the glue melting cylinder 3. Referring to Figures 2 to 4 , the screw 2 is sequentially connected in the feeding direction as a connecting section 21, a feeding section 22, a compression section 23 and a high mixing section, wherein the connecting section 21 is used to connect the screw 2 driving part to make the screw 2 rotate, the feeding section 22 is used to continuously feed the molten raw materials forward, the compression section 23 is used to further compress the molten raw materials fed forward, and the high mixing section is used to improve the color mixing effect of the raw materials in the molten state, and the high mixing section is also used to connect the extrusion head and finally extrude the raw materials in the molten state through the extrusion head. Among them, the feeding section 22 and the compression section 23 are both screw sections, the tooth groove of the feeding section 22 is widened and deepened, so that the tooth groove width and the tooth groove depth of the feeding section 22 are greater than the tooth groove width and the tooth groove depth of the compression section 23. One of the purposes is to make the gap between the feeding section 22 and the glue melting cylinder 3 larger, so that the screw 2 and the glue melting cylinder 3 have a larger injection volume to meet the production requirements of small clamping force and large injection volume of the plastic tray, and avoid the volume of the glue melting cylinder 3 being too large due to unilateral increase of the injection volume of the glue melting cylinder 3. The second purpose is to improve the feeding efficiency of the feeding section 22, thereby improving the feeding efficiency of the screw 2, and the third purpose is to make the structure between the feeding section 22 and the compression section 23 form a mutation effect, which is used to improve the plasticizing capacity of the screw 2 to the raw materials in the molten state.

[0043] Referring to Figures 2 to 4, the high mixing section is a non-threaded section, the high mixing section includes a first mixing section 24 and a second mixing section 25 in sequence along the feeding direction, the first mixing section 24 is provided with grooves 241 around the center of rotation of the first mixing section 24, the grooves 241 are divided into two groups, one group of grooves 241 is communicated with the feeding end of the first mixing section 24, and the other group of grooves 241 is communicated with the discharging end of the first mixing section 24, the two groups of grooves 241 are staggered around the center of rotation of the first mixing section 24, and the two groups of grooves 241 are at the same angle with the feeding direction, in this embodiment, the angle between the groove 241 and the feeding direction is 45°, and the number of grooves 241 in each group is eight, so that the first mixing section 24 has eight feeding positions and eight discharging positions. The second mixing section 25 is provided with toothed rings 251 arranged uniformly along the axis of the second mixing section 25, and the teeth between the toothed rings 251 are arc grooves 241. Through the structural design of the first mixing section 24 and the second mixing section 25, the high mixing section has high mixing effect, in addition, the transition section is connected between the first mixing section 24 and the second mixing section 25, the diameter of the transition section is smaller than the diameter of the first mixing section 24 and the second mixing section 25, so as to facilitate the transition of the raw materials from the first mixing section 24 to the second mixing section 25.

[0044] Referring to Figure 5 and Figure 6 , the glue melting barrel 3 is provided with a feeding port 31, and the lower end of the feeding barrel 4 is connected to the feeding port 31 of the glue melting barrel 3, so that the feeding barrel 4 is communicated with the inside of the glue melting barrel 3 to realize the feeding function of the feeding barrel 4. The automatic plastic tray production line of the application also makes improvements at the feeding port 31. The improvement lies in that in the prior art, the left and right sides of the feeding port 31 are symmetrical structures, while in the application, the left and right sides of the feeding port 31 are asymmetrical structures to improve the feeding speed.

[0045] Referring to Figure 1 In the automatic plastic tray production line in this embodiment, two injection molding machines 1 are provided, and the clamping parts 12 of the two injection molding machines 1 are each provided with a first material taking manipulator. In this embodiment, the first material taking manipulator is a three-axis manipulator 51. A conveying table 52 is arranged between the two injection molding machines 1, and the conveying table 52 includes a first frame body 521, a plurality of first rollers 522, and a conveying driving member for driving the first rollers 522 to rotate. The plurality of first rollers 522 are each rotationally arranged on the first frame body 521. The three-axis manipulator 51 is used to clamp and place the injection-molded plastic trays on the conveying table 52, and the conveying table 52 then conveys the plastic trays to the end. Since the plastic trays will generate injection molding water ports after injection molding, the end of the conveying table 52 is also provided with a water port shearing mechanism 53. Combined with Figure 7, the water gap mechanism 53 is provided with a plurality of scissors 531 movable along the X axis, Y axis and Z axis to shear the injection water gap of the plastic tray. The end of the conveying table 52 is also provided with a second material taking manipulator. In this embodiment, the second material taking manipulator is a six-axis manipulator 54, and the six-axis manipulator 54 is used to discharge the plastic tray after the water gap is sheared.

[0046] The implementation principle of the automatic plastic tray production line of this embodiment is that the injection molded plastic tray is taken and placed on the conveying table 52 by the first material taking manipulator, then conveyed to the water gap mechanism 53 by the conveying table 52, the water gap mechanism 53 shears the injection water gap generated in the injection molding, and then taken out by the second material taking manipulator, realizing the automatic production of the plastic tray.

[0047] Embodiment 2

[0048] The difference between this embodiment and embodiment 1 is that the automatic plastic tray production line further comprises a waste box and a waste emptying device.

[0049] Referring to FIG. 8, the waste box comprises a first waste box arranged below the end of the conveying table 52, used to receive the waste sheared by the water gap mechanism 53. The waste emptying device is arranged outside the end of the conveying table 52. The purpose of arranging the waste emptying device is that after the injection water gap of the plastic tray is sheared by the water gap mechanism 53 and the plastic tray is discharged by the six-axis manipulator 54, a part of the waste sheared by the water gap mechanism 53 will remain on the plastic tray, and the waste emptying device is used to receive the plastic tray taken out by the six-axis manipulator 54 and empty the waste remaining on the plastic tray.

[0050] Referring to Figure 8The waste emptying device comprises a second frame body 6 and a shaking mechanism. The second frame body 6 is arranged on the ground. A plurality of second rollers 61 are arranged on the top of the second frame body 6. The rotation shafts of the plurality of second rollers 61 are parallel to each other. The plurality of second rollers 61 are uniformly and horizontally spaced apart. The waste emptying device receives the plastic tray taken out by the six-axis robot 54 through the plurality of second rollers 61, so that the plastic tray is easily moved back and forth in two opposite directions on the waste emptying device, and the two opposite directions are respectively the a direction and the b direction of the plastic tray. The shaking mechanism comprises two groups of pushing assemblies arranged on the second frame body 6. One group of pushing assemblies is arranged in the a direction of the plastic tray and is used for pushing the plastic tray in the b direction. The other group of pushing assemblies is arranged in the b direction of the plastic tray and is used for pushing the plastic tray in the a direction. The pushing actions of the two groups of pushing assemblies are staggered and repeated with each other, so as to realize the shaking effect of the plastic tray, thereby shaking the waste remaining on the plastic tray. Specifically, the pushing assembly comprises a sliding rail 71, a sliding block 72, a mounting seat 73, a gas cylinder 74 and a push plate 75. The sliding rail 71 is fixedly arranged on the second frame body 6. The sliding block 72 is slidingly arranged on the sliding rail 71. The sliding block 72 slides back and forth on the sliding rail 71 along the a direction and the b direction. The push plate 75, the gas cylinder 74 and the mounting seat 73 are sequentially and fixedly connected with the sliding block 72. The push plate 75 is used for pushing the plastic tray. The mounting seats 73 between the two groups of pushing assemblies are connected with a first connecting rod 91. One of the two groups of pushing assemblies is connected with a shaking driving member. The shaking driving member is a motor 76. The output shaft of the motor 76 is connected with a disc. The disc is connected with the mounting seat 73 through a second connecting rod 92. The two ends of the second connecting rod 92 are hingedly connected with the disc and the mounting seat 73, respectively. The second connecting rod 92 is connected at the eccentric position of the disc. When the motor 76 works, the motor 76 drives the mounting seat 73 connected with the second connecting rod 92 to reciprocate along the a direction and the b direction. Since the mounting seats 73 between the two groups of pushing assemblies are connected with the first connecting rod 91, the motor 76 controls the mounting seats 73 of the two groups of pushing assemblies to reciprocate at the same time, thereby controlling the push plates 75 of the two groups of pushing assemblies to push the plastic tray in a staggered manner, so as to realize the shaking effect of the plastic tray. Specifically, the push plate 75 is connected with the outer end of the telescopic rod of the gas cylinder 74. The telescopic direction of the telescopic rod of the gas cylinder 74 is the direction of approaching or moving away from the plastic tray, so that the distance between the push plates 75 of the two groups of pushing assemblies is adjustable, thereby facilitating the placement of the plastic tray and the adjustment according to the size of the plastic tray. In addition, the waste box further comprises a second waste box arranged at the bottom of the second roller 61, which is used for receiving the injection molding waste shaken from the plastic tray.

[0051] Referring to Figure 8Since the plastic tray is prone to produce sharp edges after shearing, which may cause skin cutting during subsequent use of the plastic tray, the waste emptying device of the automatic plastic tray production line is further provided with a friction mechanism. The friction mechanism comprises a turnover plate 81 which can be turned up and down, and the bottom surface of the turnover plate 81 is provided with sandpaper 82. During the working process, the turnover plate 81 is first kept in the vertical upturned state, and after the six-axis manipulator 54 places the plastic tray after shearing the injection molding water gap on the second roller 61 of the second frame body 6, the turnover plate 81 is turned down to the horizontal state and the sandpaper 82 contacts the top surface of the plastic tray, so that the plastic tray also performs friction movement with the sandpaper 82 during the subsequent shaking process, so as to grind the sharp edges generated after shearing the injection molding water gap, thereby reducing the situation of skin cutting during subsequent use of the plastic tray, and the waste generated by friction is also easy to fall into the second waste box below the second roller 61 during the shaking process, which is convenient for collection. The sandpaper 82 in the embodiment is composed of wood fiber paper + aluminum oxide abrasive particles, and in the remaining embodiments, it can also be sandpaper 82 of other materials as long as it can achieve the effect of grinding the sharp edges generated by shearing the plastic tray. In order to realize the turnover of the turnover plate 81, the friction mechanism further comprises a mounting frame 84 and a turnover driving member. The mounting frame 84 is arranged on one side of the second frame body 6, and the turnover driving member is a hydraulic motor 83. The hydraulic motor 83 is fixedly arranged on the mounting frame 84, and the output shaft of the hydraulic motor 83 is coaxially connected with a driving gear. The turnover plate 81 is hinged to the mounting frame 84, and the hinge shaft of the turnover plate 81 is coaxially connected with a driven gear. The driving gear is engaged with the driven gear. When the hydraulic motor 83 works, the driving gear is first driven to rotate, the driving gear drives the driven gear to rotate, and the driven gear drives the turnover plate 81 to turn over, thereby realizing the turnover process of the turnover plate 81. Further, the mounting frame 84 comprises a fixed part 841 and a movable part 842. The fixed part 841 is used for fixing on the second frame body 6, and the movable part 842 is connected with the hydraulic motor 83 and the turnover plate 81. The movable part 842 is connected to the fixed part 841 in an ascending and descending manner, and is fixed by screwing to the fixed seat. Through the above arrangement, the height of the turnover plate 81 can be adjusted, so that the friction mechanism can adapt to plastic trays with different thicknesses, so as to grind the sharp edges generated by shearing the injection molding water gap for plastic trays with different thicknesses.

[0052] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application. Therefore, any equivalent changes made on the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An automated plastic pallet production line, characterized in that: The injection molding machine (1) includes a joint injection unit (11) and a mold clamping unit (12) that cooperate with each other. The injection unit (11) includes a melt cylinder (3) and a screw (2) disposed in the melt cylinder (3). The screw (2) is divided into a connecting section (21), a feeding section (22), a compression section (23) and a high-mixing section along the feeding direction. The feeding section (22) and the compression section (23) are both threaded sections. The groove width and groove depth of the feeding section (22) are both greater than the groove width and groove depth of the compression section (23). The injection volume of the injection stage (11) is 34643 cm³. 3 The clamping force of the mold closing part (12) is 2500t; The automated plastic pallet production line also includes a first picking robot, a conveyor table (52), a sprue cutting mechanism (53), and a second picking robot. The injection molding machine (1) is located at the front end of the conveyor table (52). The first picking robot is located on the mold closing part (12) of the injection molding machine (1). The first picking robot is used to pick up and place the injection-molded plastic pallet onto the conveyor table (52). The sprue cutting mechanism (53) and the second picking robot are both located at the end of the conveyor table (52). The second picking robot is used to remove the plastic pallet after the sprue is cut. The automated plastic pallet production line also includes a waste discharge device, which is located at the end of the conveyor (52). The waste discharge device includes a second frame (6) and a shaking mechanism located on the second frame (6). The shaking mechanism is used to shake the plastic pallet after the cut-out on the second frame (6).

2. The automated plastic pallet production line according to claim 1, characterized in that: The high-mixing section is a non-threaded section, which includes a first mixing section (24) and a second mixing section (25). The first mixing section (24) has multiple grooves (241) spaced apart around its own rotation center, and the second mixing section (25) has multiple gear rings spaced apart along its own axis.

3. The automated plastic pallet production line according to claim 2, characterized in that: The groove (241) is provided in two sets. One set of the groove (241) is connected to the feed end of the first mixing section (24), and the other set of the groove (241) is connected to the discharge end of the first mixing section (24). The two sets of grooves (241) are staggered around the rotation center of the first mixing section (24).

4. An automated plastic pallet production line according to claim 3, characterized in that: The angle between the groove (241) and the feeding direction is 45°.

5. An automated plastic pallet production line according to claim 1, characterized in that: The melt cylinder (3) has a material inlet (31), and the left and right sides of the material inlet (31) are asymmetrical.

6. An automated plastic pallet production line according to claim 1, characterized in that: The second frame (6) is also provided with a flip plate (81). After the flip plate (81) is flipped down, its bottom surface is used to abut against the plastic tray after the water cut, and the bottom surface is provided with sandpaper (82).

7. An automated plastic pallet production line according to claim 6, characterized in that: The second frame (6) is provided with a mounting bracket (84), which includes a fixed part (841) and a movable part (842). The fixed part (841) is fixed on the second frame (6), and the movable part (842) is raised and lowered on the fixed part (841). The flip plate (81) is hinged to the movable part (842).

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