Raw material mixing equipment for PE bag production

Abstract

The invention relates to the technical field of mixing, and discloses raw material mixing equipment for PE bag production, the raw material mixing equipment comprises a box body, a stirring shaft and a driving mechanism for driving the stirring shaft to rotate, and the box body is provided with a feed port and a discharge port; a stirring mechanism is arranged on the stirring shaft; a partition plate is connected in the box body, an auxiliary hole is formed in the partition plate, and the stirring shaft can rotate in the auxiliary hole; a plurality of through holes are formed in the partition plate at equal intervals, and first elastic layers are arranged in the through holes; a plurality of edge grooves are formed in the inner wall of the box body at equal intervals, lifting blocks are vertically and slidably connected into the edge grooves, the lifting blocks can vertically move in the through holes, and the lifting blocks abut against the first elastic layer; a rotating shaft is rotationally connected into the box body and located below the partition plate. The rotating mechanism rotates along with the stirring shaft to drive the rotating shaft to rotate; and the adjusting mechanism rotates along with the rotating shaft to simultaneously drive the plurality of lifting blocks to do vertical reciprocating motion. According to the scheme, the problem that polyethylene particles with different components cannot be uniformly mixed by an existing stirrer is mainly solved.

Description

Technical Field

[0001] The invention relates to the technical field of mixing, and in particular to a raw material mixing device for producing PE bags. Background Art

[0002] PE bags are a common type of bag on the market. As the public demand for PE bags increases, the production of PE bags also increases accordingly. The raw materials used in the production of PE bags are composed of polyethylene particles of different components. These polyethylene particles must be mixed before being transported to the film blowing machine for melting and film blowing. Traditional mixing equipment has the problems of complex structure and uneven mixing.

[0003] To solve the above problems, a Chinese patent with publication number CN208006034U discloses a polyethylene particle raw material mixer, in which a first stirring rod in a first stirring drum stirs different polyethylene particles, and a spiral stirring blade drives the polyethylene particles forward into a second stirring drum, and then a second stirring shaft and a third stirring shaft in the second stirring drum stir the polyethylene particles located at the upper part of the second stirring drum, and at the same time, the polyethylene particles at the bottom of the second stirring drum are stirred by the rotation of five groups of stirring components on the fourth stirring shaft. Since the lengths of the stirring arms of the five groups of stirring components are different, the polyethylene particles in the second stirring drum are stirred from different depths. Therefore, the patent has a simple structure and can stir and mix the polyethylene particles multiple times to ensure that the polyethylene particles are fully mixed.

[0004] The following problems exist during the actual use of the above-mentioned patent: during the rotation of the fourth stirring shaft, the fourth stirring shaft drives the first stirring arm to the tenth stirring arm to rotate, so that the polyethylene particles in the second stirring barrel are stirred from different depths; but the first stirring arm to the tenth stirring arm are mainly concentrated on stirring in the vertical direction, and cannot stir in the horizontal direction, resulting in uneven mixing of polyethylene particles of different components; and, although the lengths of the first stirring arm to the tenth stirring arm are different, the positions of the first stirring arm to the tenth stirring arm in the horizontal direction cannot be adjusted, resulting in some polyethylene particles still being retained at the bottom of the second stirring barrel, so that they cannot be mixed with other polyethylene particles, resulting in uneven mixing. Summary of the invention

[0005] The present invention is intended to provide a raw material mixing device for PE bag production, so as to solve the problem that the existing mixer mixes polyethylene particles of different components unevenly.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a raw material mixing equipment for PE bag production, comprising a box body, a stirring shaft and a driving mechanism for driving the stirring shaft to rotate, the box body is provided with a feed port and a discharge port, and a sealing block is detachably connected to the discharge port; a stirring mechanism is provided on the stirring shaft; a partition is connected to the box body, and an auxiliary hole is provided on the partition, and the stirring shaft can rotate in the auxiliary hole; a plurality of through holes are equidistantly provided on the partition along the length direction of the partition, and a first elastic layer is provided in the through hole; a plurality of side grooves are equidistantly provided on the inner wall of the box body along the length direction of the box body, and a lifting block is vertically slidably connected in the side groove, and the lifting block can move vertically in the through hole, and the lifting block is against the first elastic layer; a rotating shaft is rotatably connected to the box body, and the rotating shaft is located below the partition; it also includes a rotating mechanism that drives the rotating shaft to rotate as the stirring shaft rotates, and an adjusting mechanism that drives multiple lifting blocks to reciprocate vertically at the same time as the rotating shaft rotates.

[0007] The principles and advantages of this solution are:

[0008] 1. This solution uses a driving mechanism to drive the stirring shaft to rotate, and the stirring mechanism on the stirring shaft can be used to stir polyethylene particles of different components. Compared with the prior art, during stirring, the stirring shaft drives the rotating shaft to rotate through the rotating mechanism, and the rotating shaft drives multiple lifting blocks to move upward through the adjusting mechanism, so that the lifting blocks squeeze the first elastic layer to bulge upward; therefore, there will be multiple raised first elastic layers on the top of the partition along the length direction of the partition, which can promote the flow of polyethylene particles on the top of the partition and change their positions for better mixing and processing.

[0009] 2. In this solution, since the multiple lifting blocks will reciprocate vertically, the first elastic layer will continuously bulge and flatten. The shape change of the first elastic layer can move the polyethylene particles and change their positions for better mixing and processing.

[0010] Furthermore, the stirring mechanism includes a first annular block and a vertical groove opened on the side wall of the stirring shaft. The stirring shaft is located in the first annular block. The first annular block can move vertically relative to the stirring shaft. A stirring arm is provided on the first annular block. A vertical block is slidably connected in the vertical groove. The vertical block is fixedly connected to the inner wall of the first annular block. It also includes a power part that drives the first annular block to reciprocate vertically as the stirring shaft rotates.

[0011] Through the above arrangement, during the rotation of the stirring shaft, the stirring shaft drives the first annular block to reciprocate vertically through the power unit, and then drives the stirring arm to reciprocate vertically, thereby expanding the stirring and mixing range of the stirring arm and improving the uniform mixing effect of polyethylene particles of different components.

[0012] Furthermore, the power unit includes a second annular block fixed to the top of the box body and a power block fixed to the vertical block. The stirring shaft is located in the second annular block and can rotate in the second annular block. A curved groove is provided on the second annular block, and one end of the power block away from the vertical block is slidably connected to the curved groove.

[0013] Through the above arrangement, during the rotation of the first annular block, since the second annular block is fixedly connected to the box body, one end of the power block is slidably connected to the curved groove, and the other end is fixedly connected to the vertical block. The first annular block makes vertical reciprocating motion under the guidance of the curved groove through the vertical block and the power block, thereby driving the stirring arm to move vertically.

[0014] Furthermore, the adjustment mechanism includes a plurality of adjustment parts, and the adjustment parts are located between two adjacent lifting blocks; the adjustment parts include a cylindrical block coaxially connected to the rotating shaft and adjustment units located on both sides of the cylindrical block, and the thickness of the cylindrical block gradually increases from top to bottom; the adjustment unit includes a wall groove opened on the inner wall of the box body, and a wall block slidably connected to the wall groove, and a first spring is provided between the wall block and the wall groove, and the two ends of the cylindrical block are respectively against the two wall blocks; and it also includes a linkage unit that drives the lifting block to reciprocate as the wall block reciprocates.

[0015] Through the above arrangement, during the rotation of the shaft, the shaft drives the cylindrical block to rotate. When the two ends of the side with the largest thickness of the cylindrical block respectively abut against the two wall blocks, the two wall blocks are moved away, that is, the wall block moves along the path of the wall groove, and the first spring is compressed; when the two ends of the side with the smallest thickness of the cylindrical block respectively abut against the two wall blocks, the wall block moves in the opposite direction under the action of the first spring, that is, the two wall blocks approach each other; therefore, the two wall blocks can continue to approach and move away from each other.

[0016] During the reciprocating motion of the wall block, the wall block drives the lifting block to reciprocate vertically through the linkage unit.

[0017] Furthermore, the linkage unit includes a slide groove vertically opened on the top of the wall block, an inclined groove opened on the inner wall of the box body, and a side block fixedly connected to the lifting block. A sliding block is slidably connected in the slide groove; an auxiliary block is slidably connected in the inclined groove, and the auxiliary block is fixedly connected to the sliding block; a transverse groove is provided at the bottom of the side block, and an end of the sliding block away from the slide groove is slidably connected to the transverse groove.

[0018] Through the above arrangement, when the two wall blocks are close to each other, the wall block drives the slider to move laterally in the transverse groove; at the same time, the slider can also move upward under the guidance of the inclined groove through the auxiliary block, and the slider squeezes the side block to drive the lifting block to move upward, so that the lifting block squeezes the first elastic layer to bulge upward; therefore, there will be multiple raised first elastic layers on the top of the partition along the length direction of the partition, which can promote the flow of polyethylene particles on the top of the partition and change their position for better mixing and processing; when the two wall blocks are away from each other, the wall block drives the slider to move laterally in the opposite direction in the transverse groove; at the same time, the slider can also move downward under the guidance of the inclined groove through the auxiliary block, and the slider drives the lifting block to move downward through the side block, so that the first elastic layer is restored for the next work.

[0019] Furthermore, one end of the lifting block close to the first elastic layer is in a convex arc shape.

[0020] Through the above arrangement, on the one hand, the contact area with the first elastic layer can be increased to prevent the first elastic layer from being punctured; on the other hand, the first elastic layer can be caused to bulge upward and solidify, thereby better promoting the flow of polyethylene particles.

[0021] Furthermore, a plurality of bottom grooves are equidistantly provided at the bottom of the partition along the length direction of the partition, the bottom grooves are located between two adjacent through holes, and a bottom block is slidably connected in the bottom grooves; the cylindrical block is a cam, and the raised portion of the cylindrical block is located on the side of the cylindrical block with the smallest thickness; an annular groove is provided on the cylindrical block, and the end of the bottom block away from the bottom groove is slidably connected to the annular groove; the partition is slidably connected to the inside of the box body, and fixed blocks are provided on the inner walls on both sides of the box body, and the fixed blocks are located between the partition and the rotating shaft, and a second spring is provided between the partition and the fixed block, so that the stirring shaft can move vertically in the auxiliary hole.

[0022] Through the above arrangement, during the rotation of the cylindrical block, since the cylindrical block is a cam, when the raised portion of the cylindrical block is facing upward, the raised portion of the cylindrical block drives the bottom block to move upward through the annular groove, the bottom block squeezes the partition to move upward, the second spring is stretched, and at this time, the bottom block is against the bottom of the bottom groove; the cylindrical block continues to rotate, and when the raised portion of the cylindrical block is facing downward, the raised portion of the cylindrical block drives the bottom block to move downward through the annular groove, the squeezing effect of the bottom block on the partition disappears, so that the partition moves downward under the action of the second spring, and at this time, the bottom block is separated from the top of the bottom groove, and the bottom of the bottom block is located below the top of the bottom groove; thereby, the vertical reciprocating motion of the partition can be realized, that is, the polyethylene particles can be turned over through the vertical reciprocating motion of the partition, thereby promoting the polyethylene particles to change positions, so that the polyethylene particles of different components are stirred and mixed more evenly.

[0023] Furthermore, a plurality of top grooves are equidistantly provided on the top of the partition along the length direction of the partition, the top groove is located between two adjacent through holes, a second elastic layer is provided in the top groove, and a movable block is provided in the middle of the second elastic layer; a guide groove is provided between the top groove and the bottom groove, the width of the guide groove is smaller than the width of the bottom groove, the movable block is slidably connected to the guide groove, and the end of the movable block away from the second elastic layer is fixedly connected to the bottom block.

[0024] Through the above arrangement, since the cylindrical block is a cam, the raised portion of the cylindrical block is located at the side of the cylindrical block with the smallest thickness. Therefore, when the raised portion of the cylindrical block is facing upward, the partition is located at the highest point, and at the same time, the side of the cylindrical block with the smallest thickness is facing upward, then the first elastic layer will not be squeezed by the lifting block, that is, the first elastic layer is in a flat state; when the raised portion of the cylindrical block is facing downward, the partition is located at the lowest point, and at the same time, the side of the cylindrical block with the largest thickness is facing upward, then the first elastic layer is squeezed by the lifting block, that is, the first elastic layer is in an upwardly protruding state.

[0025] When the raised portion of the cylindrical block is facing upward, the raised portion of the cylindrical block drives the bottom block to move upward through the annular groove. At this time, the top of the bottom block is against the top of the bottom groove, and at the same time, the bottom block drives the movable block to move upward, so that the movable block squeezes the second elastic layer to be flat; when the raised portion of the cylindrical block is facing downward, the raised portion of the cylindrical block drives the bottom block to move downward through the annular groove. At this time, the top of the bottom block is separated from the top of the bottom groove, and at the same time, the bottom block drives the movable block to move downward, so that the movable block drives the middle part of the second elastic layer to move downward, so that the second elastic layer presents a concave arc shape.

[0026] To summarize, when the raised portion of the cylindrical block is facing upward, the first elastic layer and the second elastic layer are both in a flat state, and the polyethylene particles on the partition are driven to flip through the rising partition; when the raised portion of the cylindrical block is facing downward, the two adjacent first elastic layers are raised, and the second elastic layer between the two adjacent layers is recessed, thereby increasing the flow range of the polyethylene particles on the partition; therefore, both methods can make the polyethylene particles of different components more evenly stirred and mixed.

[0027] Furthermore, the rotating mechanism comprises a driving bevel gear coaxially connected to the stirring shaft and a driven bevel gear coaxially connected to the rotating shaft, and the driving bevel gear is meshed with the driven bevel gear.

[0028] Through the above arrangement, when the stirring shaft rotates, the stirring shaft drives the driving bevel gear to rotate, the driving bevel gear meshes with the driven bevel gear to drive the driven bevel gear to rotate, and the driven bevel gear drives the rotating shaft to rotate.

[0029] Furthermore, a flip arm is provided on the stirring arm, and the flip arm is perpendicular to the stirring arm.

[0030] Through the above arrangement, the polyethylene particles can be flipped by the flipping arm to change their positions, thereby promoting the stirring and mixing of polyethylene particles of different components to make the mixing more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a front view of an embodiment of a raw material mixing device for PE bag production of the present invention;

[0032] Figure 2 For the present invention Figure 1 A partial cross-sectional view in the main viewing direction;

[0033] Figure 3 for Figure 2 Enlarged view of point A in the middle. DETAILED DESCRIPTION

[0034] The following is further described in detail through specific implementation methods:

[0035] The figure marks in the drawings of the specification include: box body 10, stirring shaft 11, motor 12, feed port 13, sealing block 14, first annular block 20, vertical groove 21, stirring arm 22, vertical block 23, second annular block 24, power block 25, curved groove 26, partition 30, auxiliary hole 31, through hole 32, first elastic layer 33, side groove 34, lifting block 35, rotating shaft 36, active bevel gear 37, driven bevel gear 38, cylindrical block 40, wall groove 41, wall block 42, first spring 43, slide groove 44, inclined groove 45, side block 46, slider 47, transverse groove 48, bottom groove 50, bottom block 51, annular groove 52, fixed block 53, second spring 54, top groove 55, second elastic layer 56, movable block 57, guide groove 58, flip arm 60.

[0036] Example

[0037] Basically as attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 As shown: A raw material mixing device for PE bag production includes a box body 10, a stirring shaft 11 and a driving mechanism for driving the stirring shaft 11 to rotate. In this embodiment, the driving mechanism is a motor 12, which is fixed to the top of the box body 10. The output shaft of the motor 12 is coaxially connected to the stirring shaft 11, and the stirring shaft 11 is located in the middle of the box body 10. The box body 10 is provided with a feed inlet 13 and a discharge port. The feed inlet 13 is arranged at the top of the box body 10, and the discharge port is arranged on the side wall of the box body 10. A sealing block 14 is threadedly connected to the discharge port.

[0038] A stirring mechanism is provided on the stirring shaft 11, and the stirring mechanism includes a first annular block 20 and a vertical groove 21 provided on the side wall of the stirring shaft 11. The stirring shaft 11 is located in the first annular block 20, and the first annular block 20 can move vertically relative to the stirring shaft 11. A stirring arm 22 is fixedly connected to the first annular block 20, and there are multiple stirring arms 22; a vertical block 23 is slidably connected in the vertical groove 21, and the vertical block 23 is fixedly connected to the inner wall of the first annular block 20; it also includes a power unit that drives the first annular block 20 to reciprocate vertically as the stirring shaft 11 rotates, and the power unit includes a second annular block 24 fixedly connected to the top of the box body 10, and a power block 25 fixedly connected to the vertical block 23. The stirring shaft 11 is located in the second annular block 24, and the stirring shaft 11 can rotate in the second annular block 24. The second annular block 24 is located above the first annular block 20; a curved groove 26 is provided on the second annular block 24, and one end of the power block 25 away from the vertical block 23 is slidably connected to the curved groove 26.

[0039] A partition 30 is connected to the box body 10, and an auxiliary hole 31 is opened on the partition 30, and the stirring shaft 11 can rotate in the auxiliary hole 31; a plurality of through holes 32 are opened on the partition 30 at equal intervals along the length direction of the partition 30, and a first elastic layer 33 is fixed in the through hole 32; a plurality of side grooves 34 are opened on the inner wall of the box body 10 at equal intervals along the length direction of the box body 10, and a lifting block 35 is vertically slidably connected in the side groove 34, and the lifting block 35 can move vertically in the through hole 32, and the lifting block 35 abuts against the first elastic layer 33; a rotating shaft 36 is rotatably connected in the box body 10, and the rotating shaft 36 is located below the partition 30. It also includes a rotating mechanism that drives the rotating shaft 36 to rotate as the stirring shaft 11 rotates, and the rotating mechanism includes a driving bevel gear 37 coaxially connected to the stirring shaft 11 and a driven bevel gear 38 coaxially connected to the rotating shaft 36, and the driving bevel gear 37 is meshed with the driven bevel gear 38.

[0040] The adjusting mechanism also includes a plurality of lifting blocks 35 that rotate with the rotating shaft 36 and simultaneously drive the vertical reciprocating motion. The adjusting mechanism includes a plurality of adjusting parts, and the adjusting parts are located between two adjacent lifting blocks 35. The adjusting parts include a cylindrical block 40 coaxially connected to the rotating shaft 36 and an adjusting unit located on both sides of the cylindrical block 40. The thickness of the cylindrical block 40 gradually increases from top to bottom. The adjusting unit includes a wall groove 41 provided on the inner wall of the box body 10, a wall block 42 slidably connected to the wall groove 41, a first spring 43 is provided between the wall block 42 and the wall groove 41, and the two ends of the cylindrical block 40 are respectively connected to the two wall blocks 42. Offset each other; it also includes a linkage unit that drives the lifting block 35 to reciprocate as the wall block 42 reciprocates, the linkage unit includes a slide groove 44 vertically opened on the top of the wall block 42, an inclined groove 45 opened on the inner wall of the box body 10, and a side block 46 fixedly connected to the lifting block 35, and a slider 47 is slidably connected in the slide groove 44; the spacing between the inclined grooves 45 on both sides of the cylindrical block 40 gradually decreases from top to bottom, and an auxiliary block is slidably connected in the inclined groove 45, and the auxiliary block is fixedly connected to the slider 47; a transverse groove 48 is opened at the bottom of the side block 46, and the end of the slider 47 away from the slide groove 44 is slidably connected to the transverse groove 48.

[0041] A plurality of bottom grooves 50 are equidistantly provided at the bottom of the partition 30 along the length direction of the partition 30, the bottom grooves 50 are located between two adjacent through holes 32, and a bottom block 51 is slidably connected in the bottom grooves 50; the cylindrical block 40 is a cam, and the raised portion of the cylindrical block 40 is located on the side of the cylindrical block 40 with the smallest thickness; an annular groove 52 is provided on the cylindrical block 40, and the end of the bottom block 51 away from the bottom groove 50 is slidably connected to the annular groove 52; the partition 30 is slidably connected to the inside of the box body 10, and fixed blocks 53 are fixedly connected to the inner walls on both sides of the box body 10, the fixed blocks 53 are located between the partition 30 and the rotating shaft 36, and a second spring 54 is fixedly connected between the partition 30 and the fixed block 53, so that the stirring shaft 11 can move vertically in the auxiliary hole 31. A plurality of top grooves 55 are equidistantly formed at the top of the partition 30 along the length direction of the partition 30, and the top groove 55 is located between two adjacent through holes 32. A second elastic layer 56 is fixedly connected in the top groove 55, and a movable block 57 is fixedly connected to the middle of the second elastic layer 56; a guide groove 58 is formed between the top groove 55 and the bottom groove 50, and the width of the guide groove 58 is smaller than the width of the bottom groove 50, and the movable block 57 is slidably connected to the guide groove 58, and one end of the movable block 57 away from the second elastic layer 56 is fixedly connected to the bottom block 51; the first elastic layer 33 and the second elastic layer 56 are both rubber layers.

[0042] The specific implementation process is as follows:

[0043] When in use, polyethylene particles of different components are introduced into the box body 10 through the feed port 13 so as to be located on the surface of the partition 30 .

[0044] The motor 12 is started, and the output shaft of the motor 12 drives the stirring shaft 11 to rotate. The stirring shaft 11 drives the first annular block 20 to rotate through the vertical block 23. The first annular block 20 drives the stirring arm 22 to rotate, and then the polyethylene particles of different components are stirred and mixed through the stirring arm 22; during the rotation of the first annular block 20, since the second annular block 24 is fixedly connected to the box body 10, one end of the power block 25 is slidably connected to the curved groove 26, and the other end is fixedly connected to the vertical block 23. The first annular block 20 makes a vertical reciprocating motion under the guidance of the curved groove 26 through the vertical block 23 and the power block 25, and then drives the stirring arm 22 to move vertically, thereby expanding the stirring and mixing range of the stirring arm 22 and improving the uniform mixing effect of polyethylene particles of different components.

[0045] During the rotation of the stirring shaft 11, the stirring shaft 11 drives the active bevel gear 37 to rotate, and the active bevel gear 37 is engaged with the driven bevel gear 38 to drive the driven bevel gear 38 to rotate, and the driven bevel gear 38 drives the rotating shaft 36 to rotate; the rotating shaft 36 drives the cylindrical block 40 to rotate, and when the two ends of the side with the largest thickness of the cylindrical block 40 respectively abut against the two wall blocks 42, the two wall blocks 42 are moved away, that is, the wall block 42 moves along the path of the wall groove 41, and the first spring 43 is compressed; when the two ends of the side with the smallest thickness of the cylindrical block 40 respectively abut against the two wall blocks 42, the wall block 42 moves in the opposite direction under the action of the first spring 43, that is, the two wall blocks 42 approach each other; therefore, the two wall blocks 42 can continue to approach and move away.

[0046] When the two wall blocks 42 are close to each other, the wall block 42 drives the slider 47 to move laterally in the transverse groove 48; at the same time, the slider 47 can also move upward under the guidance of the inclined groove 45 through the auxiliary block, and the slider 47 squeezes the side block 46 to drive the lifting block 35 to move upward, so that the lifting block 35 squeezes the first elastic layer 33 to bulge upward; therefore, there will be a plurality of raised first elastic layers 33 on the top of the partition 30 along the length direction of the partition 30, which can promote the flow of polyethylene particles on the top of the partition 30 and change their position for better mixing and processing; when the two wall blocks 42 are away from each other, the wall block 42 drives the slider 47 to move laterally in the opposite direction in the transverse groove 48; at the same time, the slider 47 can also move downward under the guidance of the inclined groove 45 through the auxiliary block, and the slider 47 drives the lifting block 35 to move downward through the side block 46, so that the first elastic layer 33 is restored for the next work.

[0047] During the rotation of the cylindrical block 40, since the cylindrical block 40 is a cam, when the protrusion of the cylindrical block 40 faces upward, the protrusion of the cylindrical block 40 drives the bottom block 51 to move upward through the annular groove 52, and the bottom block 51 squeezes the partition plate 30 to move upward, and the second spring 54 is stretched. At this time, the bottom block 51 is against the bottom of the bottom groove 50; the cylindrical block 40 continues to rotate, and when the protrusion of the cylindrical block 40 faces downward, the protrusion of the cylindrical block 40 drives the bottom block 51 to move downward through the annular groove 52. The squeezing effect of the bottom block 51 on the partition 30 disappears, so that the partition 30 moves downward under the action of the second spring 54, and at this time, the bottom block 51 is separated from the top of the bottom groove 50, and the bottom of the bottom block 51 is located below the top of the bottom groove 50; thereby, the vertical reciprocating motion of the partition 30 can be realized, that is, the polyethylene particles can be turned over through the vertical reciprocating motion of the partition 30, thereby promoting the polyethylene particles to change position, so that the polyethylene particles of different components can be stirred and mixed more evenly.

[0048] Since the cylindrical block 40 is a cam, the raised portion of the cylindrical block 40 is located at the side of the cylindrical block 40 with the smallest thickness. Therefore, when the raised portion of the cylindrical block 40 is facing upward, the partition 30 is located at the highest point, and at the same time, the side of the cylindrical block 40 with the smallest thickness is facing upward, then the first elastic layer 33 will not be squeezed by the lifting block 35, that is, the first elastic layer 33 is in a flat state; when the raised portion of the cylindrical block 40 is facing downward, the partition 30 is located at the lowest point, and at the same time, the side of the cylindrical block 40 with the largest thickness is facing upward, then the first elastic layer 33 is squeezed by the lifting block 35, that is, the first elastic layer 33 is in an upwardly protruding state.

[0049] When the raised portion of the cylindrical block 40 faces upward, the raised portion of the cylindrical block 40 drives the bottom block 51 to move upward through the annular groove 52. At this time, the top of the bottom block 51 abuts against the top of the bottom groove 50. At the same time, the bottom block 51 drives the movable block 57 to move upward, so that the movable block squeezes the second elastic layer 56 to be flat; when the raised portion of the cylindrical block 40 faces downward, the raised portion of the cylindrical block 40 drives the bottom block 51 to move downward through the annular groove 52. At this time, the top of the bottom block 51 is separated from the top of the bottom groove 50. At the same time, the bottom block 51 drives the movable block 57 to move downward, so that the movable block 57 drives the middle part of the second elastic layer 56 to move downward, so that the second elastic layer 56 presents a concave arc shape.

[0050] To summarize, when the raised portion of the cylindrical block 40 is facing upward, the first elastic layer 33 and the second elastic layer 56 are both in a flat state, and the polyethylene particles on the partition 30 are driven to flip by the rising of the partition 30; when the raised portion of the cylindrical block 40 is facing downward, the two adjacent first elastic layers 33 are raised, and the second elastic layer 56 between the two adjacent first elastic layers is recessed, thereby increasing the flow range of the polyethylene particles on the partition 30; therefore, both methods can make the polyethylene particles of different components more evenly stirred and mixed.

[0051] After the polyethylene particles of different components are mixed, the sealing block 14 is removed from the discharge port to obtain the polyethylene particles.

[0052] In this embodiment, the lifting block 35 has one end close to the first elastic layer 33 in a raised arc shape; on the one hand, it can increase the contact area with the first elastic layer 33 to prevent the first elastic layer 33 from being punctured; on the other hand, it can cause the first elastic layer 33 to bulge upward and solidify, thereby better promoting the flow of polyethylene particles.

[0053] In this embodiment, a flipping arm 60 is fixedly connected to the bottom of the stirring arm 22, and the flipping arm 60 is perpendicular to the stirring arm 22; the polyethylene particles can be flipped and their positions can be changed by the flipping arm 60, thereby promoting the stirring and mixing of polyethylene particles of different components to make the mixing more uniform.

[0054] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A raw material mixing device for PE bag production, comprising a box, a stirring shaft and a driving mechanism for driving the stirring shaft to rotate, the box is provided with a feed inlet and a discharge outlet, and a sealing block is detachably connected to the discharge outlet; characterized in that: A stirring mechanism is provided on the stirring shaft; a partition is connected to the box body, and an auxiliary hole is provided on the partition, and the stirring shaft can rotate in the auxiliary hole; a plurality of through holes are equidistantly provided on the partition along the length direction of the partition, and a first elastic layer is provided in the through holes; a plurality of side grooves are equidistantly provided on the inner wall of the box body along the length direction of the box body, and a lifting block is vertically slidably connected in the side groove, and the lifting block can move vertically in the through holes, and the lifting block is against the first elastic layer; a rotating shaft is rotatably connected to the box body, and the rotating shaft is located below the partition; it also includes a rotating mechanism that drives the rotating shaft to rotate as the stirring shaft rotates, and an adjusting mechanism that drives multiple lifting blocks to reciprocate vertically at the same time as the rotating shaft rotates.

2. The raw material mixing equipment for PE bag production according to claim 1, characterized in that: The stirring mechanism includes a first annular block and a vertical groove provided on the side wall of the stirring shaft. The stirring shaft is located in the first annular block. The first annular block can move vertically relative to the stirring shaft. A stirring arm is provided on the first annular block. A vertical block is slidably connected in the vertical groove. The vertical block is fixedly connected to the inner wall of the first annular block. The stirring mechanism also includes a power unit that drives the first annular block to reciprocate vertically as the stirring shaft rotates.

3. The raw material mixing equipment for PE bag production according to claim 2, characterized in that: The power unit includes a second annular block fixed to the top of the box body and a power block fixed to the vertical block. The stirring shaft is located in the second annular block and can rotate in the second annular block. A curved groove is provided on the second annular block, and one end of the power block away from the vertical block is slidably connected to the curved groove.

4. The raw material mixing equipment for PE bag production according to claim 3, characterized in that: The adjusting mechanism includes a plurality of adjusting parts, and the adjusting parts are located between two adjacent lifting blocks; the adjusting parts include a cylindrical block coaxially connected to the rotating shaft and adjusting units located on both sides of the cylindrical block, and the thickness of the cylindrical block gradually increases from top to bottom; the adjusting unit includes a wall groove opened on the inner wall of the box body, and a wall block slidably connected to the wall groove, a first spring is provided between the wall block and the wall groove, and the two ends of the cylindrical block are respectively against the two wall blocks; and it also includes a linkage unit that drives the lifting block to reciprocate as the wall block reciprocates.

5. The raw material mixing equipment for PE bag production according to claim 4, characterized in that: The linkage unit includes a slide groove vertically opened on the top of the wall block, an inclined groove opened on the inner wall of the box body, and a side block fixedly connected to the lifting block. A sliding block is slidably connected in the slide groove; an auxiliary block is slidably connected in the inclined groove, and the auxiliary block is fixedly connected to the sliding block; a transverse groove is provided at the bottom of the side block, and an end of the sliding block away from the slide groove is slidably connected to the transverse groove.

6. The raw material mixing equipment for PE bag production according to claim 5, characterized in that: One end of the lifting block close to the first elastic layer is in a convex arc shape.

7. The raw material mixing equipment for PE bag production according to claim 6, characterized in that: The bottom of the partition is provided with a number of bottom grooves equidistantly along the length direction of the partition, the bottom groove is located between two adjacent through holes, and a bottom block is slidably connected in the bottom groove; the cylindrical block is a cam, and the raised portion of the cylindrical block is located on the side of the cylindrical block with the smallest thickness; an annular groove is provided on the cylindrical block, and the end of the bottom block away from the bottom groove is slidably connected to the annular groove; the partition is slidably connected to the inside of the box body, and fixed blocks are provided on both sides of the inner walls of the box body, and the fixed blocks are located between the partition and the rotating shaft. A second spring is provided between the partition and the fixed block, and the stirring shaft can move vertically in the auxiliary hole.

8. The raw material mixing equipment for PE bag production according to claim 7, characterized in that: A plurality of top grooves are equidistantly arranged on the top of the partition along the length direction of the partition, the top groove is located between two adjacent through holes, a second elastic layer is arranged in the top groove, and a movable block is arranged in the middle of the second elastic layer; a guide groove is arranged between the top groove and the bottom groove, the width of the guide groove is smaller than the width of the bottom groove, the movable block is slidably connected to the guide groove, and one end of the movable block away from the second elastic layer is fixedly connected to the bottom block.

9. The raw material mixing equipment for PE bag production according to claim 8, characterized in that: The rotating mechanism comprises a driving bevel gear coaxially connected to the stirring shaft and a driven bevel gear coaxially connected to the rotating shaft, and the driving bevel gear is meshed with the driven bevel gear.

10. The raw material mixing equipment for PE bag production according to claim 9, characterized in that: A flipping arm is arranged on the stirring arm, and the flipping arm is perpendicular to the stirring arm.

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