CN111391165A - Injection molding raw material pretreatment process - Google Patents
Injection molding raw material pretreatment process Download PDFInfo
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- CN111391165A CN111391165A CN202010300461.6A CN202010300461A CN111391165A CN 111391165 A CN111391165 A CN 111391165A CN 202010300461 A CN202010300461 A CN 202010300461A CN 111391165 A CN111391165 A CN 111391165A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/06—Conditioning or physical treatment of the material to be shaped by drying
- B29B13/065—Conditioning or physical treatment of the material to be shaped by drying of powder or pellets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
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Abstract
The invention relates to a pre-treatment process of injection molding raw materials, mainly include the following steps, multiple processes such as material preparation, crushing operation, cleaning operation, drying process and hot melt injection molding, the crushing apparatus of injection molding material used includes bottom plate, breaker, chopper and conveying appliance, the invention can solve the following difficult problem existing when the existing injection molding raw materials are crushed and screened, a, the traditional crushing apparatus of injection molding raw materials can not guarantee the quality of crushing while crushing the injection molding raw materials, and the screening net will be blocked while screening, it is comparatively troublesome to handle manually, has reduced the efficiency that the injection molding raw materials are crushed; b, the current reducing mechanism of raw and other materials that moulds plastics structure is complicated, complex operation during the use, and the inside tooth gap of tearing up of reducing mechanism is bigger, leads to the less raw and other materials of moulding plastics of structure to be difficult to be smashed into tiny particle, can improve the broken efficiency and the quality of raw and other materials of moulding plastics.
Description
Technical Field
The invention relates to the technical field of injection molding, in particular to a pretreatment process of injection molding raw materials.
Background
Injection molding, also known as injection molding, is a method of molding by injection and molding. The injection molding method has the advantages of high production speed, high efficiency, automation of operation, various colors and varieties, simple and complicated shapes, small sizes, accurate product size, easy replacement of products and capability of forming products with complicated shapes, the injection molding is main molding equipment for manufacturing plastic products with various shapes by utilizing thermoplastic plastics or thermosetting plastics through a plastic molding die, and injection molding raw materials are often crushed and screened before use.
However, the following problems exist in the conventional injection molding raw material crushing and screening, that is, a, when the injection molding raw material is crushed, the crushing quality cannot be guaranteed, and when the injection molding raw material is screened, a screening net is blocked, so that manual treatment is troublesome, and the efficiency of crushing the injection molding raw material is reduced; b, the current reducing mechanism of raw and other materials that moulds plastics structure is complicated, complex operation during the use, and the inside slot ratio of the tooth that tears of reducing mechanism is bigger, leads to the less raw and other materials that mould plastics of structure to be difficult to by smashing into tiny granule, and relies on the tooth that tears to extrude waste plastic and form the problem that the granule has inefficiency and has also reduced the quality of injection moulding product simultaneously, can improve the broken efficiency and the quality of raw and other materials of moulding plastics.
Disclosure of Invention
In order to solve the problems, the injection molding raw material pretreatment process mainly comprises the following steps:
step one, material preparation: manually preparing the injection molding raw material to obtain the injection molding raw material;
step two, crushing operation: placing the injection molding raw material obtained in the step one into injection molding material crushing equipment for crushing treatment to obtain a crushed raw material;
step three, cleaning operation: cleaning the crushed raw material obtained in the step two to obtain a clean raw material;
step four, drying treatment: drying the clean raw materials obtained in the third step to obtain dry raw materials;
step five, hot melting and injection molding: and D, heating and melting the dried raw material obtained in the step four, extruding and granulating, drying the obtained granules in the step four, and drying to obtain the injection molding granules.
The injection molding material crushing equipment used in the steps comprises a bottom plate, a crushing device, a chopping device and a conveying device, wherein supporting plates are symmetrically arranged on the bottom plate in a front-back mode, the conveying device is arranged on the supporting plates, the chopping device is arranged at the upper end of the supporting plates, and the crushing device is arranged at the upper end of the chopping device.
The crushing device comprises a feeding hole, a first discharging hole, an air blow box, an air pump, an air blow pipe, an inclined plate, an inclined filter screen, a first collecting box, a support rod, a flat plate, a first motor, a rotating shaft, a first gear, a second gear, a third gear, a crushing box, a power shaft, a crushing roller, a crushing cutter and a scraping plate, wherein the crushing box is arranged on a chopping device, the air blow box is arranged at the upper end of the crushing box, the feeding hole is arranged at the upper end of the air blow box, the inclined plate is arranged between the inner walls of the left and right ends of the rear side of the air blow box, an air inlet is uniformly arranged on the inclined plate, the air pump is arranged on the inner wall of the rear end of the air blow box, the air blow pipe is arranged at the output end of the air pump, the front end of the air blow box is, the upper end of the supporting rod is provided with a flat plate, the flat plate is provided with a first collecting box, the first collecting box is positioned at the lower end of a first discharge port, the outer wall of the right end of the crushing box is provided with a power box, the outer wall of the rear end of the power box is provided with a first motor, the output end of the first motor penetrates through the rear end of the power box and is provided with a first gear, the first gear is provided with a rotating shaft, the front end of the rotating shaft is arranged on the inner wall of the front end of the power box through a bearing, the rotating shaft is provided with a second gear, power shafts are symmetrically arranged between the front and rear inner walls of the left end and the right end of the crushing box in the front-back direction, the right end of the power shaft penetrates through the right side of the crushing box and is provided with a third gear, the third gear and the second gear are meshed with each other, the crushing rollers are, the scraper plate and the crushing roller are mutually matched for use, and through mutual matching operation among the air pump, the air blowing pipe, the inclined plate and the inclined filter screen, dust in injection molding raw materials can be removed, and the quality of injection molding products is improved.
The chopping device comprises a straight plate, a chopping box, a chopping circular ring, a lower sliding plate, a fourth gear, a fifth gear, a sixth gear, a seventh gear, an internal toothed belt, a transmission circular rod, a rotary circular rod, a top plate, a sliding rod, a return spring rod, an arc panel, a rubber plate, a chopping knife, a second motor, a rotary disk and a cutting knife, wherein the straight plate is arranged at the middle end of a support plate, the chopping box is arranged at the upper end of the straight plate, the chopping circular ring is arranged at the upper end of the chopping box, the crushing box is arranged on the chopping circular ring, the lower sliding plate is arranged between the inner walls at the left end and the right end of the lower side of the crushing box, circular grooves are respectively arranged in the lower sliding plate and the crushing box, the transmission circular rod is symmetrically arranged between the inner walls at the left end and the right end of the crushing box in the front-back direction, the gear at the right end of the transmission circular, the middle end of the rotary round rod is provided with a fifth gear, the fifth gear and the fourth gear are mutually meshed for use, the rear end of the rotary round rod is provided with a sixth gear, the front end of the rotary round rod is provided with a seventh gear, the sixth gear and the first gear are connected through a first internal toothed belt, the transmission round rod is uniformly provided with a top plate from left to right along the circumferential direction of the transmission round rod, the top plate is provided with a chute, a sliding rod is arranged in the chute in a sliding fit manner, one end of a return spring rod is connected to the sliding rod, the other end of the return spring rod is connected to the transmission round rod, the sliding rod is provided with an arc panel, the arc panels are connected through a rubber plate, the arc panels are uniformly provided with shredding knives from left to right along the circumferential direction, the middle part of the lower end of the lower sliding plate is provided with a second motor, the output end of the second motor is provided with a rotary disk, the screening mechanism is installed in the chopping box, and the crushing effect of injection molding raw materials can be improved by crushing the injection molding raw materials through the chopping knife and the cutting knife.
The screening mechanism comprises a screening net, a hairbrush, a pushing rod, a power round rod, a cam, a driven round rod, an eight-gear, a two-number inner-tooth belt, a clamping plate, a two-number collecting box and a two-number discharge hole, wherein the screening net is installed between the inner walls of the lower end of the chopping box, the two-number discharge hole is installed at the lower end of the chopping box, a straight groove is formed in the position, at the same height of the screening net, of the left end of the chopping box, a square groove is formed in the right end of the chopping box, the pushing rod is installed in the square groove in a sliding fit mode, the hairbrush is installed in the position, at the left end of the pushing rod, the power round rod is installed at the right end of the pushing rod, the driven round rod is installed between the inner walls of the front end and the rear end of the lower side of the power box through a bearing, the eight-number gear is connected with the seven-gear through the two, install the cardboard between the straight board left end inner wall in front and back both ends, install No. two collecting boxes on the cardboard, through mutually supporting between brush, impulse lever, power circle and the cam for the raw and other materials of moulding plastics on the screening net can in time be swept away to the brush, and the screening net can not take place to block up.
Conveyor include No. three motors, carry axle, conveyer belt and No. three collecting boxes, the backup pad right side outer wall of front end on install No. three motors, No. three motor output passes the front end backup pad and installs and carry the axle, install between the backup pad left side inner wall at both ends around and carry the axle, control and be connected through the conveyer belt between the transport axle at both ends, placed No. three collecting boxes on the conveyer belt, can collect the operation to the broken raw and other materials of moulding plastics of accomplishing.
As a preferred technical scheme of the invention, the rollers are uniformly arranged at the lower end of the bottom plate, so that the moving performance of the injection molding material crushing equipment is improved.
As a preferable technical scheme of the invention, the power round rod extends into the power groove, and the power round rod and the power groove are mutually matched for use, so that the cam can drive the push rod to do linear reciprocating motion through the power round rod.
As a preferred technical scheme of the invention, the meshes of the inclined filter screen are smaller than those of the screening screen, so that the injection molding raw materials can be better screened.
The invention has the beneficial effects that:
1. the invention can solve the following problems existing in the prior injection molding raw material crushing and screening, a, the crushing quality can not be ensured when the traditional injection molding raw material crushing device crushes the injection molding raw material, and the screening net is blocked during screening, so that the manual treatment is troublesome, and the efficiency of crushing the injection molding raw material is reduced; b, the current reducing mechanism of raw and other materials that moulds plastics structure is complicated, complex operation during the use, and the inside slot ratio of the tooth that tears of reducing mechanism is bigger, leads to the less raw and other materials that mould plastics of structure to be difficult to by smashing into tiny granule, and relies on the tooth that tears to extrude waste plastic and form the problem that the granule has inefficiency and has also reduced the quality of injection moulding product simultaneously, can improve the broken efficiency and the quality of raw and other materials of moulding plastics.
2. The conveying device and the crushing device are designed to enable the conveying belt to drive the third collecting box to move to the second discharging hole to collect the crushed injection molding raw materials through the mutual matching operation among the third motor, the conveying shaft, the conveying belt and the third collecting box, and enable the air blowing pipe to remove dust in the injection molding raw materials through the mutual matching operation among the first discharging hole, the air blowing box, the air pump, the air blowing pipe, the inclined plate, the inclined filter screen, the first collecting box, the first motor, the rotating shaft, the first gear, the second gear, the third gear, the crushing box, the power shaft, the crushing roller, the crushing cutter and the scraping plate, so that the influence of the dust on injection molding is reduced, the first-stage crushing treatment can be performed on the injection molding raw materials through the crushing roller and the crushing cutter, and the crushing effect of the injection molding raw materials is improved.
3. The chopping device and the screening mechanism designed by the invention are operated by the mutual cooperation of the top plate, the sliding rod, the return spring rod, the cambered plate, the rubber plate, the chopping knife, the second motor, the rotating disk and the cutting knife, so that the chopping knife can carry out secondary crushing treatment on the injection molding raw materials, the cutting knife can carry out tertiary crushing treatment on the injection molding raw materials, through the multi-stage crushing treatment of the injection molding raw materials, the crushing effect of the injection molding raw materials is ensured, the quality of injection molding products is improved, the crushing efficiency of the injection molding raw materials is improved, through the mutual matching operation among the screening net, the brush, the push rod, the power round rod and the cam, the screening net can screen the broken injection molding raw materials, and the brush can sweep the raw and other materials of moulding plastics on the screen cloth into No. two collecting boxes, can not take place the jam of screen cloth, has improved the crushing efficiency of the raw and other materials of moulding plastics.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a flow chart of the operation of the present invention;
FIG. 2 is a schematic view showing the construction of the injection molding material pulverizing apparatus of the present invention;
FIG. 3 is a partial cross-sectional view of FIG. 2 of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3 in accordance with the present invention;
FIG. 5 is an enlarged view of the invention taken along line K of FIG. 4;
FIG. 6 is a schematic view of a portion of the crushing apparatus of the present invention;
FIG. 7 is a partial schematic view of the shredder of the present invention.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 to 7, a pre-treatment process of injection molding raw materials mainly comprises the following steps:
step one, material preparation: manually preparing the injection molding raw material to obtain the injection molding raw material;
step two, crushing operation: placing the injection molding raw material obtained in the step one into injection molding material crushing equipment for crushing treatment to obtain a crushed raw material;
step three, cleaning operation: cleaning the crushed raw material obtained in the step two to obtain a clean raw material;
step four, drying treatment: drying the clean raw materials obtained in the third step to obtain dry raw materials;
step five, hot melting and injection molding: and D, heating and melting the dried raw material obtained in the step four, extruding and granulating, drying the obtained granules in the step four, and drying to obtain the injection molding granules.
The injection molding material crushing equipment used in the steps comprises a bottom plate 1, a crushing device 2, a chopping device 3 and a conveying device 4, wherein supporting plates 11 are symmetrically arranged on the bottom plate 1 in a front-back mode, the conveying device 4 is arranged on the supporting plates 11, the chopping device 3 is arranged at the upper end of the supporting plates 11, and the crushing device 2 is arranged at the upper end of the chopping device 3.
The conveying device 4 comprises a third motor 41, a conveying shaft 42, a conveying belt 43 and a third collecting box 44, the third motor 41 is mounted on the outer wall of the right side of the front end of the supporting plate 11, the output end of the third motor 41 penetrates through the front end supporting plate 11 to be mounted with the conveying shaft 42, the conveying shaft 42 is mounted between the inner walls of the left sides of the front and rear ends of the supporting plate 11, the conveying shafts 42 at the left and right ends are connected through the conveying belt 43, and the third collecting box 44 is placed on the conveying belt 43.
During specific work, the third collecting box 44 is manually placed on the conveying belt 43, and the third motor 41 drives the conveying belt 43 to rotate through the conveying shaft 42, so that the conveying belt 43 conveys the third collecting box 44 to the lower end of the second discharging hole 31 k.
The crushing device 2 comprises a feeding hole 2a, a first discharging hole 2b, an air blow box 2c, an air pump 2d, an air blow pipe 2e, an inclined plate 2f, an inclined filter screen 2g, a first collecting box 2h, a support rod 2i, a flat plate 2j, a first motor 2k, a rotating shaft 2l, a first gear 2m, a second gear 2n, a third gear 2o, a crushing box 2p, a power box 2q, a power shaft 2r, a crushing roller 2s, a crushing cutter 2t and a scraping plate 2u, wherein the crushing box 2p is arranged on a chopping device 3, the air blow box 2c is arranged at the upper end of the crushing box 2p, the feeding hole 2a is arranged at the upper end of the air blow box 2c, the inclined plate 2f is arranged between the inner walls of the left end and the right end of the rear side of the air blow box 2c, an air pump 2d is arranged on the inner wall of the rear end of the air blow box 2c, the front end of an air blow pipe 2e is connected in an air inlet, an inclined filter screen 2g is arranged between the inner walls of the left end and the right end of the front side of an air blow box 2c, a first discharge port 2b is arranged on the outer wall of the front end of the air blow box 2c, support rods 2i are symmetrically arranged at the left end and the right end of the front side of a bottom plate 1, a flat plate 2j is arranged at the upper end of the support rods 2i, a first collecting box 2h is arranged on the flat plate 2j, the first collecting box 2h is positioned at the lower end of the first discharge port 2b, a power box 2q is arranged on the outer wall of the right end of a crushing box 2p, a first motor 2k is arranged on the outer wall of the rear end of the power box 2q, a first gear 2m is arranged at the output end of the first motor 2k and penetrates through the rear end of the power box 2q, a power shaft 2l is arranged on the inner wall of the front end of the, no. 2o of gear is installed on the right side of power shaft 2r right-hand member through broken case 2p, and No. 2o of gear and No. 2n intermeshing of gear use, lie in broken case 2p on power shaft 2r and install crushing roller 2s, it evenly installs broken sword 2t to the right mutual interval from a left side to extend its circumferential direction on the crushing roller 2s, lie in between the broken sword 2t clearance from a left side to the right side on the inner wall of both ends around broken case 2p and install scraping plate 2u, scraping plate and broken roller 2s use of mutually supporting.
During specific work, injection raw materials needing to be crushed are conveyed into a feeding hole 2a, an air pump 2d blows generated air into an air blow box 2c through an air blow pipe 2e, the injection raw materials sliding into the air blow box 2c are subjected to dust removal operation, so that small dust passes through an inclined filter screen 2g and enters a first discharging hole 2b, the small dust enters a first collecting box 2h through a first discharging hole 2b, large injection raw materials fall onto a crushing roller 2s, a first motor 2k drives a rotating shaft 2l to rotate, the rotating shaft 2l drives a second gear 2n to rotate, the second gear 2n drives a third gear 2o to rotate in a gear meshing mode, the third gear 2o drives a power shaft 2r to rotate, the power shaft 2r drives the crushing roller 2s to rotate, the crushing roller 2s drives a crushing cutter 2t to perform crushing operation on the large injection raw materials, the injection molding raw material is crushed and then slides onto the cambered plate 3o, and meanwhile, the scraping plate 2u scrapes the residual injection molding raw material on the crushing roller 2 s.
The chopping device 3 comprises a straight plate 3a, a chopping box 3b, a chopping ring 3c, a lower sliding plate 3d, a fourth gear 3e, a fifth gear 3f, a sixth gear 3g, a seventh gear 3h, a first internal toothed belt 3i, a transmission round rod 3j, a rotary round rod 3k, a top plate 3l, a sliding rod 3m, a return spring rod 3n, an arc-shaped plate 3o, a rubber plate 3p, a chopping knife 3q, a second motor 3r, a rotary disk 3s and a cutting knife 3t, wherein the straight plate 3a is arranged at the middle end of a support plate 11, the chopping box 3b is arranged at the upper end of the straight plate 3a, the chopping ring 3c is arranged at the upper end of the chopping box 3b, the chopping ring 3c is provided with a chopping box 2p, the lower sliding plate 3d is arranged between the inner walls at the left end and the right end of the lower side of the chopping box 2p, arc-shaped grooves are respectively arranged in the lower sliding plate 3d and the crushing box 2p, the transmission round rods 3j are symmetrically arranged between the inner walls at the left end and, the right end of a transmission round rod 3j penetrates through the right side of a crushing box 2p and is provided with a fourth gear 3e, a rotary round rod 3k is arranged between the inner walls of the front end and the rear end of the middle end of a power box 2q, the middle end of the rotary round rod 3k is provided with a fifth gear 3f, the fifth gear 3f and the fourth gear 3e are mutually meshed for use, the rear end of the rotary round rod 3k is provided with a sixth gear 3g, the front end of the rotary round rod 3k is provided with a seventh gear 3h, the sixth gear 3g and the first gear 2m are connected through a first internal tooth belt 3i, a top plate 3l is uniformly arranged on the transmission round rod 3j along the circumferential direction from left to right, a sliding groove is formed in the top plate 3l, a sliding rod 3m is arranged in the sliding groove in a sliding fit manner, one end of a return spring rod 3n is connected to the sliding rod 3m, the other end of, install cambered plate 3o on slide bar 3m, be connected through rubber slab 3p between the cambered plate 3o, it evenly installs shredding knife 3q from a left side to the right side to extend its circumferential direction on the cambered plate 3o, the recess has been seted up at slide 3d lower extreme middle part down, install No. two motor 3r on the recess inner wall, No. two motor 3r outputs install rotary disk 3s, it evenly installs cutting knife 3t to extend its circumferential direction on the rotary disk 3s, install screening mechanism 31 in the shredding box 3 b.
When the cutting machine works specifically, a motor 2k drives a gear 2m to rotate, the gear 2m drives a gear 3g six to rotate through an internal toothed belt 3i, the gear 3g six drives a rotary round rod 3k to rotate, the rotary round rod 3k drives a gear 3f five to rotate, the gear 3f five drives a gear 3e four to rotate through a gear meshing mode, the gear 3e four drives a transmission round rod 3j to rotate, the transmission round rod 3j drives a top plate 3l to rotate, the top plate 3l drives an arc panel 3o to rotate through a sliding rod 3m, a cutting knife 3q on the arc panel 3o cuts injection molding raw materials, the cut injection molding raw materials slide to the upper end of a rotary disk 3s, the motor 3r two drives a rotary disk 3s cutting knife to rotate, and the injection molding raw materials are subjected to secondary cutting operation by 3t on the rotary disk 3 s.
The screening mechanism 31 comprises a screening net 31a, a brush 31b, a pushing rod 31c, a power round rod 31d, a cam 31e, a driven round rod 31f, an eighth gear 31g, a second internal toothed belt 31h, a clamping plate 31i, a second collecting box 31j and a second discharging hole 31k, wherein the screening net 31a is arranged between the inner walls of the lower end of the chopping box 3b, the second discharging hole 31k is arranged at the lower end of the chopping box 3b, a straight groove is formed in the position, at the same height of the screening net 31a, of the left end of the chopping box 3b, a square groove is formed in the right end of the chopping box 3b, the pushing rod 31c is arranged in the square groove in a sliding fit manner, the brush 31b is arranged at the left end of the pushing rod 31c, the power round rod 31d is arranged at the right end of the pushing rod 31c, the driven round rod 31f is arranged between the inner walls of the front end and the rear end of the lower side of the power box 2q, the driven round rod 31f, eight gear 31g and seven gear 3h are connected through No. two internal tooth belt 31h between, and the cam 31e is installed to driven round bar 31f middle-end, has seted up the power groove on the cam 31e along its circumferential direction, installs cardboard 31i between the straight board 3a left end inner wall in front and back both ends, installs No. two collecting box 31j on the cardboard 31 i.
The power round rod 31d extends into the power groove, and the power round rod 31d and the power groove are mutually matched for use.
The injection molding raw materials of the secondary cutting fall into the screening net 31a, the rotary round rod 3k drives the seventh gear 3h to rotate while rotating, the seventh gear 3h drives the eighth gear 31g to rotate through the second internal toothed belt 31h, the eighth gear 31g drives the driven round rod 31f to rotate, the driven round rod 31f drives the cam 31e to rotate, the cam 31e drives the push rod 31c to do linear reciprocating motion through the power round rod 31d, the push rod 31c drives the hairbrush 31b to do linear reciprocating motion, so that the hairbrush 31b sweeps the injection molding raw materials on the screening net 31a into the second collection box 31j, the injection molding raw materials falling on the screening net 31a enter the third collection box 44 through the second discharge hole 31k, and the process is repeated, and the injection molding raw materials can be crushed.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A pretreatment process for injection molding raw materials is characterized by comprising the following steps: the method mainly comprises the following steps:
step one, material preparation: manually preparing the injection molding raw material to obtain the injection molding raw material;
step two, crushing operation: placing the injection molding raw material obtained in the step one into injection molding material crushing equipment for crushing treatment to obtain a crushed raw material;
step three, cleaning operation: cleaning the crushed raw material obtained in the step two to obtain a clean raw material;
step four, drying treatment: drying the clean raw materials obtained in the third step to obtain dry raw materials;
step five, hot melting and injection molding: heating and melting the dried raw materials obtained in the fourth step, extruding and granulating, drying the obtained granules in the fourth step, and drying to obtain injection molding granules;
the injection molding material crushing equipment used in the steps comprises a bottom plate (1), a crushing device (2), a chopping device (3) and a conveying device (4), wherein supporting plates (11) are symmetrically arranged on the bottom plate (1) in a front-back mode, the conveying device (4) is arranged on the supporting plates (11), the chopping device (3) is arranged at the upper end of the supporting plates (11), and the crushing device (2) is arranged at the upper end of the chopping device (3);
the crushing device (2) comprises a feeding hole (2a), a first discharging hole (2b), a blow box (2c), an air pump (2d), a blow pipe (2e), an inclined plate (2f), an inclined filter screen (2g), a first collecting box (2h), a supporting rod (2i), a flat plate (2j), a first motor (2k), a rotating shaft (2l), a first gear (2m), a second gear (2n), a third gear (2o), a crushing box (2p), a power box (2q), a power shaft (2r), a crushing roller (2s), a crushing cutter (2t) and a scraping plate (2u), wherein the crushing box (2p) is arranged on the chopping device (3), the blow box (2c) is arranged at the upper end of the blow box (2c), the feeding hole (2a) is arranged at the upper end of the blow box (2c), the inclined plate (2f) is arranged between the left inner wall and the right inner wall of the rear side of the blow box (2c), an air inlet is uniformly formed in the inclined plate (2f), an air pump (2d) is mounted on the inner wall of the rear end of the air blow box (2c), an air blow pipe (2e) is mounted at the output end of the air pump (2d), the front end of the air blow pipe (2e) is connected into the air inlet, an inclined filter screen (2g) is mounted between the inner walls of the left end and the right end of the front side of the air blow box (2c), a first discharge port (2b) is mounted on the outer wall of the front end of the air blow box (2c), supporting rods (2i) are symmetrically mounted at the left end and the right end of the front side of the bottom plate (1), a flat plate (2j) is mounted at the upper end of each supporting rod (2i), a first collecting box (2h) is mounted on each flat plate (2j), the first collecting box (2h) is located at the lower end of the first discharge port (2b), no. one motor (2k) output passes headstock (2q) rear end and installs gear (2m), install rotation axis (2l) on gear (2m), rotation axis (2l) front end passes through the bearing and installs on headstock (2q) front end inner wall, install No. two gear (2n) on rotation axis (2l), power shaft (2r) are installed to the symmetry around between the both ends inner wall about broken case (2p), power shaft (2r) right-hand member passes broken case (2p) right side and installs No. three gear (2o), and No. three gear (2o) and No. two gear (2n) intermeshing use, lie in broken case (2p) on power shaft (2r) and install crushing roller (2s), broken sword (2t) are evenly installed to the right mutual interval from a left side to a left side along its circumferential direction on broken roller (2s), it is located on the both ends inner wall from a left side to right side around broken case (2p) and scrapes to install between the clearance and scrape broken sword (2t) The scraping plate (2u) and the crushing roller (2s) are matched with each other for use;
the chopping device (3) comprises a straight plate (3a), a chopping box (3b), a chopping ring (3c), a lower sliding plate (3d), a fourth gear (3e), a fifth gear (3f), a sixth gear (3g), a seventh gear (3h), a first internal toothed belt (3i), a transmission round rod (3j), a rotary round rod (3k), a top plate (3l), a sliding rod (3m), a return spring rod (3n), an arc panel (3o), a rubber plate (3p), a chopping knife (3q), a second motor (3r), a rotary disk (3s) and a cutting knife (3t), wherein the straight plate (3a) is arranged at the middle end of a support plate (11), the chopping box (3b) is arranged at the upper end of the straight plate (3a), the chopping ring (3c) is arranged at the upper end of the chopping box (3b), and the chopping ring (3c) is provided with a crushing box (2p), the lower sliding plate (3d) is arranged between the inner walls of the left end and the right end of the lower side of the crushing box (2p), the lower sliding plate (3d) and the crushing box (2p) are respectively provided with an arc groove, a transmission round rod (3j) is symmetrically arranged in the crushing box (2p) front and back between the inner walls of the left end and the right end of the arc groove, the right end of the transmission round rod (3j) penetrates through the right side of the crushing box (2p) and is provided with a fourth gear (3e), a rotary round rod (3k) is arranged between the inner walls of the front end and the rear end of the middle end of the power box (2q), the middle end of the rotary round rod (3k) is provided with a fifth gear (3f), the fifth gear (3f) and the fourth gear (3e) are mutually meshed for use, the rear end of the rotary round rod (3k) is provided with a sixth gear (3g), the front end of the rotary round rod (3k) is provided with a seventh gear (3h), and the sixth gear (, the cutting device is characterized in that a top plate (3l) is uniformly arranged on a transmission round rod (3j) along the circumferential direction from left to right, a sliding groove is formed in the top plate (3l), a sliding rod (3m) is arranged in the sliding groove in a sliding fit mode, one end of a return spring rod (3n) is connected to the sliding rod (3m), the other end of the return spring rod (3n) is connected to the transmission round rod (3j), an arc panel (3o) is arranged on the sliding rod (3m), the arc panels (3o) are connected through a rubber plate (3p), a cutting knife (3q) is uniformly arranged on the arc panel (3o) along the circumferential direction from left to right, a groove is formed in the middle of the lower end of a lower sliding plate (3d), a second motor (3r) is arranged on the inner wall of the groove, a rotating disc (3s) is arranged at the output end of the second motor (3r), and cutting knives (3t), a screening mechanism (31) is installed in the shredding box (3 b).
2. An injection molding raw material pretreatment process according to claim 1, characterized in that: the screening mechanism (31) comprises a screening net (31a), a hairbrush (31b), a pushing rod (31c), a power round rod (31d), a cam (31e), a driven round rod (31f), an eighth gear (31g), a second inner toothed belt (31h), a clamping plate (31i), a second collecting box (31j) and a second discharging hole (31k), the screening net (31a) is installed between the inner walls of the lower end of the chopping box (3b), the second discharging hole (31k) is installed at the lower end of the chopping box (3b), the hairbrush (31b) is installed inside the chopping box (3b) at the left end of the chopping box (3b) which is positioned at the same height of the screening net (31a), a square groove is formed at the right end of the chopping box (3b), the pushing rod (31c) is installed inside the chopping box (3b) in a sliding fit mode, and the power round rod (31d) is installed at the right end of the pushing rod (31c), install driven round bar (31f) through the bearing between the both ends inner wall around headstock (2q) downside, driven round bar (31f) front end is installed eight gears (31g), be connected through No. two internal tooth belt (31h) between eight gears (31g) and seven gears (3h), cam (31e) are installed to driven round bar (31f) middle-end, extend its circumference direction on cam (31e) and seted up the power groove, install cardboard (31i) between front and back both ends straight board (3a) the left end inner wall, install No. two collecting box (31j) on cardboard (31 i).
3. An injection molding raw material pretreatment process according to claim 1, characterized in that: conveyor (4) including No. three motor (41), carry axle (42), conveyer belt (43) and No. three collecting box (44), backup pad (11) right side outer wall of front end on install No. three motor (41), No. three motor (41) output passes front end backup pad (11) and installs and carry axle (42), install between backup pad (11) left side inner wall at front and back both ends and carry axle (42), control and be connected through conveyer belt (43) between transport axle (42) at both ends, placed No. three collecting box (44) on conveyer belt (43).
4. An injection molding raw material pretreatment process according to claim 1, characterized in that: the lower end of the bottom plate (1) is uniformly provided with rollers (12).
5. An injection molding raw material pretreatment process according to claim 2, characterized in that: the power round rod (31d) extends into the power groove, and the power round rod (31d) and the power groove are matched with each other for use.
6. An injection molding raw material pretreatment process according to claim 2, characterized in that: the meshes of the inclined filter screen (2g) are smaller than those of the filter screen (31 a).
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