CN115367213B - Filling equipment suitable for different length plastic particles - Google Patents

Abstract

The invention belongs to the field of plastic particle filling, and particularly relates to filling equipment suitable for plastic particles with different lengths. According to the invention, the opening and the packaging are carried out on a larger nylon bag through the bag opening mechanism, and the filled and packaged nylon bag is separated into a plurality of smaller plastic particle packages meeting the quality requirements through the bag separating mechanism according to the requirements, so that the purpose of filling plastic particles into nylon bags with different specifications and sizes is achieved, and the applicability is good. Meanwhile, the bag separating mechanism and the bag supporting mechanism are simple in structure, easy to operate and good in use effect.

Description

Filling equipment suitable for different length plastic particles

Technical Field

The invention belongs to the field of plastic particle filling, and particularly relates to filling equipment suitable for plastic particles with different lengths.

Background

The plastic particle production comprises the steps of melting plastic, extruding, cooling and granulating, and filling after granulating.

The plastic particles with consistent length cannot be cut by a common granulator, and a small amount of unqualified plastic particles with longer length are mixed in the plastic particles, so that the plastic particles are required to be screened and removed by a screening machine although the length of most plastic particles is required to be compounded.

When the existing screening machine screens the overlong plastic particles, the overlong plastic particles below the screen can splash into the plastic particles on the screen to be composited due to vibration of the screen, so that the screening efficiency of the screen is reduced, and the overall qualification rate of the plastic particles is lower.

In the process of screening or filling plastic particles, the filling channel or the screen mesh is often blocked, and the machine is required to be stopped for manual cleaning, so that the filling efficiency of the plastic particle screening machine is reduced.

Plastic particles entering the packaging bag still are in a softened state due to certain residual temperature, so that the plastic particles entering the bottom of the packaging bag are deformed under extrusion, and the qualification rate of finished products of the plastic particles is reduced.

In addition, although the traditional plastic particle filling machine can automatically finish filling into the packaging bag, the structure for opening and packaging the packaging bag is complex, and the packaging bag with different specifications cannot be flexibly transmitted, opened and packaged, so that the applicability is poor.

The invention designs a plastic particle filling machine to solve the problems.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses filling equipment suitable for plastic particles with different lengths, which is realized by adopting the following technical scheme.

The utility model provides a filling equipment suitable for different length plastic particles, it includes support A, letter sorting mechanism, divides bag mechanism, prop a bag mechanism, wherein the letter sorting mechanism of installing in support A top separates the partial length plastic particles that does not meet the requirements with qualified plastic particles, has the structure that prevents to move in it and blocks up its structure and to plastic particles stoving design in the letter sorting mechanism; the bag opening mechanism for opening the nylon bags is used for filling qualified plastic particles in a certain amount into the nylon bags by the sorting mechanism, closing the bag openings of the nylon bags and sealing the nylon bags by hot melting; the bag separating mechanism arranged on the bracket A separates the nylon bags which are packaged with the plastic particles on the bag supporting mechanism into a plurality of small bag plastic particle packages meeting the weight requirement.

As a further improvement of the technology, the sorting mechanism comprises a sorting shell, a bevel part, a sorting channel, a vertical part, a funnel, a roller A, a conveying belt, a roller B, a gear A, a gear B, a gear C, a gear D, a motor A, a guide plate, a hot air cavity, a hot air pipe and a guide cylinder, wherein the sorting shell consists of a feeding vertical part and a screening bevel part, and the bevel part only allows plastic particles to move obliquely downwards in a single-layer state; the upper end of each sorting channel is provided with a cone opening which enables the off-long unqualified columnar plastic particles rolling downwards around the axis in the sorting shell inclined part to slide downwards obliquely along the axis into the sorting channel; a material guiding cylinder for filling qualified plastic particles into a nylon bag below is arranged below the sorting hole; air holes communicated with a hot air cavity on the inclined part are uniformly distributed on the inclined part of the sorting shell and positioned at the top between the vertical part and the sorting channel, and the hot air cavity is communicated with an air heating blowing device through a hot air pipe; the junction of the vertical part of the sorting shell and the inclined part of the sorting shell is provided with a structure for preventing plastic particles from being blocked at the junction; the top end of the vertical part of the sorting shell is provided with a funnel, and the vertical part of the sorting shell is internally provided with a structure for enabling plastic particles to transversely and uniformly fall from the funnel to the inclined part.

As a further improvement of the technology, the vertical spacing of the space in the inclined part of the sorting shell is 1.5 times of the average diameter of the qualified plastic particles; the transverse width of the sorting channel is 1.2 times of the average length of the qualified plastic particles, the maximum transverse width of the cone opening at the upper end of the sorting channel is 1.5 times of the average length of the unqualified plastic particles, and the depth of the cone opening at the upper end of the sorting channel is 0.5 times of the maximum transverse width of the cone opening.

As a further improvement of the technology, a roller B is arranged at the top of the upper end of the inclined part of the sorting shell, and the axis of the roller B is parallel to the width of the inclined part; the bottom of the upper end of the inclined part of the sorting shell is provided with two rollers A which are distributed at intervals along the inclined downward direction and are parallel to the rollers B, and the two rollers A are provided with a conveying belt with the upper surface being flush with the inner bottom of the inclined part; the distance between the roller B and the conveying belt is 1.15 times of the average diameter of the qualified plastic particles; a gear C is arranged on a roll shaft where the roller A is positioned, a gear A is arranged on the roll shaft where the roller B is positioned, the gear A is in transmission connection with the gear C through the gear B, and the gear C is meshed with a gear D arranged on an output shaft of a motor A outside the sorting shell; a plurality of guide plates which enable plastic particles to transversely and uniformly enter the inclined part are arranged in the vertical part of the sorting shell.

As a further improvement of the technology, the bag separating mechanism comprises a box A, a sliding seat A, a motor B, a sliding block, a motor C, a loop, a sliding column, a hydraulic cylinder, a motor D, N type seat, a hot melt strip, an electric push rod A, a poking strip and a motor E, wherein the sliding seat A which is fixed on the bracket A horizontally slides in the box A and is synchronously driven by the two motors B, and the sliding block which is driven by the motor C horizontally slides in the sliding seat A along the direction vertical to the movement of the sliding seat A; the circular groove on the sliding block is internally and rotatably matched with a ring sleeve with a vertical central axis and driven to rotate by a motor D, a sliding column driven by a hydraulic cylinder is vertically slid in the ring sleeve, an N-shaped seat with the horizontal length larger than the length and width of the nylon bag is arranged at the lower end of the sliding column, and two poking bars driven by the motor E are oppositely or reversely slid in the N-shaped seat along the width direction of the N-shaped seat; and a hot melt strip which vertically moves under the drive of the two electric push rods A is arranged in the accommodating groove at the top in the N-shaped seat.

As a further improvement of the technology, the square frame A is rotatably matched with two screw rods A in one-to-one corresponding transmission connection with the motor B, and the two screw rods A are respectively in threaded fit with the two ends of the sliding seat A; the screw rod B arranged on the slide seat A is in threaded fit with the slide block and is in transmission connection with the output shaft of the motor C; a gear E is arranged on the ring sleeve and is meshed with a gear F arranged on an output shaft of a motor D on the sliding block; the two ends of the N-type seat are respectively and rotatably matched with screw rods C which are in threaded fit with the two poking bars simultaneously, and the two screw rods C are in one-to-one corresponding transmission connection with the output shafts of two motors E on the N-type seat.

As a further improvement of the technology, the bag supporting mechanism comprises a bracket B, wheels, a supporting plate, a swinging shaft, a motor F, a square frame B, a sliding seat B, a motor G, clamping plates, an electric push rod B, a bag supporting plate, a guide sleeve, a heat sealing device, an electric push rod C and nylon bags, wherein the supporting plate which supports the nylon bags in an inclined state is hinged on the bracket B with the wheels through the horizontal swinging shaft driven by the motor F, the square frame B is arranged at one end of the supporting plate, two sliding seats B driven by the motor G are oppositely or reversely slid in the square frame B, the lower ends of the two sliding seats B are respectively provided with a bag supporting plate which stretches into the bag opening of the nylon bags and moves along with the opposite sides of the two sliding seats B, and the lower end of each sliding seat B is respectively provided with the clamping plate which tightly supports the bag opening ends of the nylon bags on the corresponding bag supporting plates under the driving of the two electric push rods B; the heat sealing device which is driven by the electric push rod C and clamps and seals the mouth of the nylon bag is arranged in the guide sleeve at one side of the square frame B along the direction perpendicular to the movement of the sliding seat B.

As a further improvement of the technology, a gear G is arranged on the pendulum shaft and is meshed with a gear H arranged on the output shaft of the motor F; the box B is rotatably matched with two screws D in one-to-one transmission connection with the motor G, and each screw D is simultaneously in threaded fit with two sliding seats B.

Compared with the traditional plastic particle filling equipment, the plastic particle filling equipment can realize the one-time effective separation of qualified plastic particles and overlength plastic particles through the sorting channel in the sorting mechanism and the sorting holes at the bottom of the tail end of the sorting channel, thereby improving the screening quality and efficiency of the plastic particles and further ensuring the qualification rate of the plastic particles finally filled into nylon bags.

According to the invention, the conveying belt and the roller B which are arranged at the junction of the vertical part and the inclined part of the sorting shell can effectively prevent plastic particles entering the sorting shell from a funnel from forming congestion between the vertical part and the inclined part of the sorting shell, so that the manual cleaning process caused by the blockage of the plastic particles in the sorting shell is saved, and the efficiency is higher.

The plastic particles are effectively dried and shaped by hot air entering the sorting shell from the hot air cavity through the air holes in the process of moving from the top end of the inclined part of the sorting shell to the sorting channel, so that the plastic particles are prevented from deforming due to extrusion after being filled into nylon bags, and the product qualification rate of the plastic particles is further improved.

According to the invention, the opening and the packaging are carried out on a larger nylon bag through the bag opening mechanism, and the filled and packaged nylon bag is separated into a plurality of smaller plastic particle packages meeting the quality requirements through the bag separating mechanism according to the requirements, so that the purpose of filling plastic particles into nylon bags with different specifications and sizes is achieved, and the applicability is good. Meanwhile, the bag separating mechanism and the bag supporting mechanism are simple in structure, easy to operate and good in use effect.

Drawings

Fig. 1 is a schematic diagram of the cooperation of a sorting mechanism, a bag separating mechanism and a bag opening mechanism.

Fig. 2 is a schematic cross-sectional view of the sorting mechanism, the bag separating mechanism and the bag opening mechanism.

Fig. 3 is a schematic cross-sectional view of the structure between the vertical section and the diagonal section of the sorting shell.

Fig. 4 is a schematic cross-sectional view of the internal structure of the vertical section of the sorting housing.

Fig. 5 is a schematic cross-sectional view of a sort channel in a sort shell bevel.

Fig. 6 is a schematic partial cross-sectional view of the sorting mechanism, the bag separating mechanism and the bag opening mechanism.

Fig. 7 is a schematic view of a sorting housing and its cross-section.

Fig. 8 is a schematic view of a bag separating mechanism.

Fig. 9 is a schematic cross-sectional view of the bag separation mechanism from two perspectives.

FIG. 10 is a schematic cross-sectional view of two paddle drives within an N-type housing.

Fig. 11 is a schematic view of a collar.

Fig. 12 is a schematic view of an N-type mount.

Fig. 13 is a schematic view of a bag opening mechanism.

Figure 14 is a schematic view of a driving section of the carrier plate in the bag opening mechanism.

Fig. 15 is a schematic diagram of the structure and its cross section on block B.

FIG. 16 is a schematic cross-sectional view of the bag-opening mechanism mated with a nylon bag.

Reference numerals in the figures: 1. a bracket A; 2. a sorting mechanism; 3. sorting the shells; 4. a bevel portion; 5. air holes; 6. sorting channels; 7. sorting holes; 9. a vertical portion; 10. a funnel; 11. a roller A; 12. a transmission belt; 13. a roller B; 14. a gear A; 15. a gear B; 16. a gear C; 17. a gear D; 18. a motor A; 19. a guide plate; 20. a hot air chamber; 21. a hot air pipe; 22. a material guiding cylinder; 23. a recycling bin; 24. a bag separating mechanism; 25. a block A; 26. a sliding seat A; 27. a screw A; 28. a motor B; 29. a slide block; 30. a screw B; 31. a motor C; 32. a ring sleeve; 33. a key slot; 34. a spool; 35. a guide key; 36. a hydraulic cylinder; 37. a gear E; 38. a gear F; 39. a motor D; 40. an N-type seat; 41. a receiving groove; 42. a hot melt strip; 43. an electric push rod A; 44. a poking bar; 45. a screw C; 46. a motor E; 47. a bag supporting mechanism; 48. a bracket B; 49. a wheel; 50. a bearing plate; 51. a pendulum shaft; 52. a gear G; 53. a gear H; 54. a motor F; 55. a block B; 56. a sliding seat B; 57. a screw D; 58. a motor G; 59. a clamping plate; 60. an electric push rod B; 61. a bag supporting plate; 62. guide sleeve; 63. a heat sealing device; 64. an electric push rod C; 65. nylon bags.

Description of the embodiments

The drawings are schematic representations of the practice of the invention to facilitate understanding of the principles of operation of the structure. The specific product structure and the proportional size are determined according to the use environment and the conventional technology.

As shown in fig. 1 and 2, the plastic particle sorting device comprises a bracket A1, a sorting mechanism 2, a bag separating mechanism 24 and a bag supporting mechanism 47, wherein the sorting mechanism 2 arranged at the top end of the bracket A1 separates undesirable long plastic particles from qualified plastic particles, and the sorting mechanism 2 is provided with a structure for preventing the plastic particles moving in the sorting mechanism from blocking the plastic particles and a structure for drying and shaping the plastic particles; the bag opening mechanism 47 for opening the nylon bags 65 fills qualified plastic particles in the nylon bags 65 in a certain amount in the sorting mechanism 2, closes the openings of the nylon bags 65 and heat-seals the nylon bags 65; the bag separating mechanism 24 mounted on the support A1 separates the nylon bags 65, which are provided with the plastic particles packaged on the bag supporting mechanism 47, into a plurality of small bag plastic particle packages meeting the weight requirement.

As shown in fig. 2, the sorting mechanism 2 comprises a sorting shell 3, a bevel part 4, a sorting channel 6, a vertical part 9, a funnel 10, a roller a11, a conveying belt 12, a roller B13, a gear a14, a gear B15, a gear C16, a gear D17, a motor a18, a guide plate 19, a hot air cavity 20, a hot air pipe 21 and a guide cylinder 22, wherein the sorting shell 3 consists of a feeding vertical part 9 and a screening bevel part 4, and the bevel part 4 only allows plastic particles to move obliquely downwards in a single-layer state as shown in fig. 2, 5 and 7; the inclined part 4 is internally provided with a sorting channel 6 in which a plurality of plastic particles move obliquely downwards in a single row state and the disqualified plastic particles with the partial length move obliquely downwards along the length direction, the bottom of the tail end of each sorting channel 6 is provided with a sorting hole 7 which only allows the qualified plastic particles to fall and does not influence the disqualified plastic particles with the partial length to continue to move obliquely downwards, and the upper end of each sorting channel 6 is provided with a conical opening which enables the disqualified cylindrical plastic particles with the partial length rolling downwards around the axis in the inclined part 4 of the sorting shell 3 to slide obliquely downwards along the axis into the sorting channel 6; a material guiding cylinder 22 for filling qualified plastic particles into a nylon bag 65 below is arranged below the sorting hole 7; air holes 5 communicated with a hot air cavity 20 on the inclined part 4 are uniformly distributed on the top of the inclined part 4 of the sorting shell 3 between the vertical part 9 and the sorting channel 6, and the hot air cavity 20 is communicated with an air heating blowing device through a hot air pipe 21; as shown in fig. 3, the junction between the vertical part 9 of the sorting shell 3 and the inclined part 4 of the sorting shell 3 is provided with a structure for preventing plastic particles from being blocked at the junction; as shown in fig. 4, the top end of the vertical portion 9 of the sorting shell 3 is provided with a funnel 10, and the vertical portion 9 of the sorting shell 3 is internally provided with a structure for enabling plastic particles to transversely and uniformly fall from the funnel 10 to the inclined portion 4.

As shown in fig. 3, 5 and 7, the vertical spacing of the space in the inclined part 4 of the sorting shell 3 is 1.5 times of the average diameter of the qualified plastic particles; the transverse width of the sorting channel 6 is 1.2 times of the average length of the qualified plastic particles, the maximum transverse width of the cone opening at the upper end of the sorting channel 6 is 1.5 times of the average length of the unqualified plastic particles, and the depth of the cone opening at the upper end of the sorting channel 6 is 0.5 times of the maximum transverse width.

As shown in fig. 3 and 4, a roller B13 is mounted on the top of the upper end of the inclined part 4 of the sorting shell 3, and the axis of the roller B13 is parallel to the width of the inclined part 4; the bottom of the upper end of the inclined part 4 of the sorting shell 3 is provided with two rollers A11 which are distributed at intervals along the inclined downward direction and are parallel to the rollers B13, and the two rollers A11 are provided with a conveying belt 12 with the upper surface being level with the bottom of the inclined part 4; the distance between the roller B13 and the conveyor belt 12 is 1.15 times of the average diameter of the qualified plastic particles; a gear C16 is arranged on a roll shaft where the roller A11 is positioned, a gear A14 is arranged on a roll shaft where the roller B13 is positioned, the gear A14 is in transmission connection with the gear C16 through a gear B15, and the gear C16 is meshed with a gear D17 arranged on an output shaft of a motor A18 outside the sorting shell 3; a plurality of guide plates 19 which enable plastic particles to transversely and uniformly enter the inclined part 4 are arranged in the vertical part 9 of the sorting shell 3.

As shown in fig. 6, 8 and 9, the bag separating mechanism 24 includes a box a25, a slide a26, a motor B28, a slide block 29, a motor C31, a ring 32, a slide column 34, a hydraulic cylinder 36, a motor D39, an N-type seat 40, a hot melt bar 42, an electric push rod a43, a poking bar 44 and a motor E46, wherein, as shown in fig. 6, 8 and 9, the slide a26 synchronously driven by the two motors B28 slides horizontally in the box a25 fixed on the bracket A1, and the slide block 29 driven by the motor C31 slides horizontally in the direction perpendicular to the movement of the slide a 26; a ring sleeve 32 with a vertical central axis and driven to rotate by a motor D39 is rotationally matched in a circular groove on the sliding block 29, and a sliding column 34 driven by a hydraulic cylinder 36 vertically slides in the ring sleeve 32; as shown in fig. 9, 10 and 12, the lower end of the sliding column 34 is provided with an N-shaped seat 40 with a horizontal length greater than the length and width dimensions of the nylon bag 65, and two poking bars 44 driven by a motor E46 are arranged in the N-shaped seat 40 in a sliding manner in opposite directions or opposite directions along the width direction; a hot melt strip 42 which moves vertically under the drive of two electric push rods A43 is arranged in a containing groove 41 at the top of the inner part of the N-shaped seat 40.

As shown in fig. 8 and 9, the box a25 is rotatably provided with two screws a27 in one-to-one transmission connection with the motor B28, and the two screws a27 are respectively in threaded fit with two ends of the slide a 26; the screw B30 arranged on the slide seat A26 is in threaded fit with the slide block 29 and is in transmission connection with the output shaft of the motor C31; as shown in fig. 6, a gear E37 is mounted on the ring sleeve 32, and the gear E37 is meshed with a gear F38 mounted on an output shaft of a motor D39 on the slider 29; as shown in fig. 9 and 10, two ends of the N-type seat 40 are respectively and rotatably matched with screw rods C45 which are simultaneously in threaded fit with two shifting bars 44, and the two screw rods C45 are in one-to-one corresponding transmission connection with output shafts of two motors E46 on the N-type seat 40.

13, 15 and 16, the bag supporting mechanism 47 comprises a bracket B48, wheels 49, a supporting plate 50, a swinging shaft 51, a motor F54, a box B55, a sliding seat B56, a motor G58, a clamping plate 59, an electric push rod B60, a bag supporting plate 61, a guide sleeve 62, a heat sealing device 63, an electric push rod C64 and a nylon bag 65, wherein the bracket B48 with the wheels 49 is hinged with the supporting plate 50 for supporting the nylon bag 65 in an inclined state through the horizontal swinging shaft 51 driven by the motor F54, one end of the supporting plate 50 is provided with the box B55, and two sliding seats B56 driven by the motor G58 slide in the box B55 in a opposite direction or opposite direction; as shown in fig. 15 and 16, the lower ends of the two sliding bases B56 are respectively provided with a bag supporting plate 61 which stretches into the opening of the nylon bag 65 and supports the opening of the nylon bag 65 along with the opposite movement of the two sliding bases B56, and the lower end of each sliding base B56 is respectively provided with a clamping plate 59 which tightly supports the opening end of the nylon bag 65 on the corresponding bag supporting plate 61 under the drive of the two electric push rods B60; a heat sealing device 63 which is driven by an electric push rod C64 and clamps and seals the mouth of a nylon bag 65 is arranged in the guide sleeve 62 at one side of the box B55 along the direction perpendicular to the movement of the sliding seat B56.

As shown in fig. 14, a gear G52 is mounted on the pendulum shaft 51, and the gear G52 is meshed with a gear H53 mounted on the output shaft of the motor F54; as shown in fig. 15, the box B55 is rotatably fitted with two screws D57 in one-to-one driving connection with the motor G58, and each screw D57 is simultaneously screwed with two slide bases B56.

As shown in fig. 6 and 11, the slide post 34 has two guide keys 35 thereon, and the two guide keys 35 slide in the two key grooves 33 on the inner wall of the ring 32, respectively.

The motor A18, the motor B28, the motor C31, the motor D39, the motor E46 and the motor F54 all adopt the prior art.

The electric push rod A43, the electric push rod B60, the electric push rod C64 and the hydraulic cylinder 36 in the invention all adopt the prior art.

The working flow of the invention is as follows: in the initial state, the N-type seat 40 in the bag separating mechanism 24 is parallel to one side of the box a25 and is positioned at the side of the box a25 to lead the material guiding barrel 22 downwards without interference, the N-type seat 40 in the bag separating mechanism 24 is positioned at the highest limit position without interference with the bag supporting mechanism 47 entering from below, the two poking strips 44 are mutually pressed and closed, and the hot melt strip 42 is hidden in the containing groove 41. The distance between the two carriages B56 in the bag-opening mechanism 47 is maximized, and the heat-sealing device 63 is located outside the frame B55 without interfering with the installation of the nylon bag 65.

When the invention needs to be used for effectively separating unqualified and long plastic particles from plastic particles and quantitatively filling the plastic particles, two motors G58 in the bag supporting mechanism 47 are started, and the two motors G58 synchronously drive two sliding seats B56 to move in opposite directions through corresponding screws D57 respectively, so that the distance between two bag supporting plates 61 is smaller than the size of the bag opening of a nylon bag 65, and the bag opening of the nylon bag 65 can be conveniently and smoothly nested on the two bag supporting plates 61. Then, the nylon bag 65 is placed on the supporting plate 50 of the bag supporting mechanism 47, the bag opening of the nylon bag 65 is manually opened and is nested on the two bag supporting plates 61 upwards, then four electric push rods B60 are synchronously started, two clamping plates 59 are driven to clamp the parts, which are nested on the bag supporting plates 61, of the bag opening of the nylon bag 65 respectively, two motors G58 are started, and the two motors G58 synchronously drive the two sliding seats B56 to move oppositely through corresponding screws D57 respectively and finish opening and supporting the bag opening of the nylon bag 65.

And a motor F54 in the bag supporting mechanism 47 is started, and the motor F54 drives the bearing plate 50 to swing through the gear H53, the gear G52 and the swinging shaft 51, so that the bearing plate 50 is inclined to a certain degree, and the whole block B55 is parallel to the block A25.

The bag opening mechanism 47 is pushed to the lower part of the material guiding cylinder 22, so that the bag opening of the nylon bag 65 is opposite to the material guiding cylinder 22, the side of the square frame A25 is parallel to the side of the square frame B55, and the equal separation of the nylon bags 65 for packaging quantitative plastic particles by the bag opening mechanism 24 in the subsequent bag separation is ensured.

Then, hot air is blown into the inclined part 4 of the sorting shell 3 through the hot air pipe 21 and the hot air cavity 20, the motor A18 is started, the motor A18 drives the conveying belt 12 to run through the gear D17, the gear C16 and the roller A11, the gear C16 drives the roller B13 to rotate through the gear B15 and the gear A14, and the running direction of the roller B13 is opposite to that of the conveying belt 12. Meanwhile, the just-molded plastic particles are conveyed into the hopper 10 through the conveying equipment, and the plastic particles transversely and uniformly fall to the junction of the inclined part 4 and the vertical part 9 of the sorting shell 3 through the guidance of a plurality of guide plates 19 in the vertical part 9 of the sorting shell 3. The plastic particles reaching the inclined part 4 of the sorting shell 3 move to the lower end of the inclined part 4 under the conveying of the conveying belt 12, and meanwhile, the rotation of the roller B13 enables the plastic particles in the vertical state to incline, so that the plastic particles move into the inclined part 4 in a single-layer state. The plastic particles entering the inclined part 4 are automatically adjusted in the moving process and are quickly dried under the action of hot air fed from the top end of the inclined part 4, and the plastic particles sliding up and down along the axis of the plastic particles are automatically adjusted to be in a downward rolling state around the axis of the plastic particles in the moving process.

When the plastic particles reach the cone opening of the sorting channel 6, the qualified plastic particles can enter the sorting channel 6 in any state to move downwards continuously, and the unqualified long plastic particles can twist from a rolling state under the action of the side wall of the cone opening and finally enter the sorting channel 6 to slide downwards continuously along the length direction or positively or obliquely. When the qualified plastic particles reach the sorting holes 7 at the tail end of the sorting channel 6, the plastic particles automatically fall into the nylon bags 65 below through the sorting holes 7 and the material guiding cylinders 22, and the unqualified long plastic particles continue to move downwards beyond the sorting holes 7 due to the large length size and finally fall into the recycling bin 23 below the tail end of the sorting shell 3, so that the unqualified long plastic particles are effectively and completely separated and sieved from the qualified plastic particles.

After the nylon bag 65 is filled with the plastic particles, the conveyance of the plastic particles into the hopper 10 is temporarily stopped, and the charging barrel 22 pauses the filling of the plastic particles into the nylon bag 65. At this time, two motors G58 in the bag opening mechanism 47 are started, and the two motors G58 synchronously drive the two sliding bases B56 to move in opposite directions through corresponding screws D57, respectively, and finally the opening of the nylon bag 65 is closed. And starting the electric push rod C64, wherein the electric push rod C64 drives the heat sealing device 63 to move from the side direction to the opening of the closed nylon bag 65 and finally form a clamping state on the opening of the closed nylon bag 65, the heat sealing device 63 is started, and the heat sealing device 63 seals the opening of the closed nylon bag 65 in a heat capacity manner.

After the mouth of the nylon bag 65 is sealed by the heat capacity, the electric push rod C64 is started to drive the heat sealing device 63 to reset and separate from the mouth of the nylon bag 65, the four electric push rods B60 are started, and the two clamping plates 59 reset relative to the corresponding bag supporting plates 61 and release the clamping of the mouth of the nylon bag 65.

Then, the motor F54 in the bag supporting mechanism 47 is started, and the motor F54 drives the bearing plate 50 to drive the nylon bags 65 filled with the quantitative plastic particles to swing to a horizontal state through a series of transmission.

Two motors B28 and C31 in the bag separating mechanism 24 are started, the motor B28 drives the sliding seat A26 to move in the box A25 through the screw rod A27, the motor C31 drives the sliding block 29 to move in the sliding seat A26 through the screw rod B30, the length of the N-type seat 40 completely covers the length or the width of the nylon bag 65 in a state of being parallel to the side of the nylon bag 65, and then the distance between the N-type seat 40 and the side of the nylon bag 65 is adjusted according to quantitative requirements by starting the motor B28 or the motor C31. The hydraulic cylinder 36 is started to drive the N-shaped seat 40 to move towards the nylon bag 65 and finally separate the nylon bag 65 into two parts, the motor E46 is started, the motor E46 drives the two poking bars 44 to move back to back through the screw rod C45, the two poking bars 44 poke plastic particles in the two parts of the nylon bag 65 towards two sides, the nylon bag 65 wall at the separation position of the two poking bars 44 is tightly attached to the nylon bag 65, and then the electric push rod A43 is started to drive the hot melt bar 42 to move downwards and finally melt-cut and melt-seal the separation position of the nylon bag 65. The electric push rod A43 is started to drive the hot melt strip 42 to reset, the hydraulic cylinder 36 is started to drive the N-shaped seat 40 to reset and separate from the nylon bag 65, and the motor E46 is started to drive the two poking strips 44 to reset. Then, the motor B28 or the motor C31 is started to drive the N-type seat 40 to move in parallel for a communication distance, and then the above-mentioned continuous separation of the larger part of the nylon bag 65 is performed, and finally the nylon bag 65 is separated into a plurality of equal strips.

Then, the motor D39 is started, the motor D39 drives the N to rotate 90 degrees through the gear F38, the gear E37, the ring sleeve 32 and the sliding column 34, the motor B28 and the motor C31 are started to adjust the position of the N-shaped seat 40 again, the length of the N-shaped seat 40 completely covers the total width of the plurality of strip-shaped nylon bags 65, and the motor B28 or the motor C31 is started to adjust the distance between the N-shaped seat 40 and one end of the strip-shaped nylon bags 65 according to quantitative requirements.

After the distance between the N-type seat 40 and one end of the strip nylon bag 65 is adjusted, all the strip nylon bags 65 are uniformly and equally separated again through the above operation, and finally, the nylon bags 65 are separated into a plurality of small nylon bags 65 with equal amounts as required.

After the separation of the nylon bags 65 is completed, the nylon bags 65 are taken down from the supporting plate 50, the bag separating mechanism 24 and the bag supporting mechanism 47 are reset, new nylon bags 65 are placed on the supporting plate 50, the operation of opening the nylon bags 65 is completed, and the nylon bags 65 are moved to the position below the material guiding cylinder 22 again to be filled continuously.

In summary, the beneficial effects of the invention are as follows: according to the invention, the sorting channel 6 in the sorting mechanism 2 and the sorting holes 7 at the bottom of the tail end of the sorting channel 6 can realize one-time effective separation of qualified plastic particles and overlength plastic particles, so that the screening quality and efficiency of the plastic particles are improved, and the qualification rate of the plastic particles finally filled in the nylon bags 65 is further ensured.

According to the invention, the conveying belt 12 and the roller B13 which are arranged at the junction of the vertical part 9 and the inclined part 4 of the sorting shell 3 can effectively prevent plastic particles entering the sorting shell 3 from the hopper 10 from forming congestion between the vertical part 9 and the inclined part 4 of the sorting shell 3, so that the manual cleaning process caused by blockage of the plastic particles in the sorting shell 3 is saved, and the efficiency is higher.

The plastic particles are effectively dried and shaped by hot air entering the sorting shell 3 from the hot air cavity 20 through the air holes 5 in the process of moving from the top end of the inclined part 4 of the sorting shell 3 to the sorting channel 6, so that the plastic particles are prevented from deforming due to extrusion after being filled into the nylon bags 65, and the product qualification rate of the plastic particles is further improved.

According to the invention, the bag opening and packaging are carried out on one larger nylon bag 65 through the bag opening mechanism 47, and the filled and packaged nylon bags 65 are separated into a plurality of smaller plastic particle packages meeting the quality requirements through the bag separating mechanism 24 according to the requirements, so that the purpose of filling plastic particles into nylon bags 65 with different specifications and sizes is achieved, and the applicability is good. Meanwhile, the bag separating mechanism 24 and the bag supporting mechanism 47 are simple in structure, easy to operate and good in use effect.

Claims (6)

1. Filling equipment suitable for different length plastic granules, its characterized in that: the plastic particle sorting device comprises a support A, a sorting mechanism, a bag separating mechanism and a bag supporting mechanism, wherein the sorting mechanism arranged at the top end of the support A separates non-satisfactory eccentric plastic particles from qualified plastic particles, and the sorting mechanism is provided with a structure for preventing the plastic particles moving in the sorting mechanism from blocking the plastic particles and a structure for drying and shaping the plastic particles; the bag opening mechanism for opening the nylon bags is used for filling qualified plastic particles in a certain amount into the nylon bags by the sorting mechanism, closing the bag openings of the nylon bags and sealing the nylon bags by hot melting; the bag separating mechanism is arranged on the bracket A and divides the nylon bags which are provided with the plastic particles packaged on the bag supporting mechanism into a plurality of small bag plastic particle packages meeting the weight requirement;

the bag separating mechanism comprises a box A, a slide seat A, a motor B, a slide block, a motor C, a loop, a slide column, a hydraulic cylinder, a motor D, N type seat, a hot melt strip, an electric push rod A, a poking strip and a motor E, wherein the slide seat A synchronously driven by the two motors B horizontally slides in the box A fixed on the bracket A, and the slide block driven by the motor C horizontally slides in the direction vertical to the movement of the slide seat A; the circular groove on the sliding block is internally and rotatably matched with a ring sleeve with a vertical central axis and driven to rotate by a motor D, a sliding column driven by a hydraulic cylinder is vertically slid in the ring sleeve, an N-shaped seat with the horizontal length larger than the length and width of the nylon bag is arranged at the lower end of the sliding column, and two poking bars driven by the motor E are oppositely or reversely slid in the N-shaped seat along the width direction of the N-shaped seat; a hot melt strip which vertically moves under the drive of two electric push rods A is arranged in a containing groove at the top of the N-shaped seat;

the box A is rotatably matched with two screws A in one-to-one corresponding transmission connection with the motor B, and the two screws A are respectively in threaded fit with two ends of the sliding seat A; the screw rod B arranged on the slide seat A is in threaded fit with the slide block and is in transmission connection with the output shaft of the motor C; a gear E is arranged on the ring sleeve and is meshed with a gear F arranged on an output shaft of a motor D on the sliding block; the two ends of the N-type seat are respectively and rotatably matched with screw rods C which are in threaded fit with the two poking bars simultaneously, and the two screw rods C are in one-to-one corresponding transmission connection with the output shafts of two motors E on the N-type seat.

2. The filling device for plastic granules of different lengths according to claim 1, characterized in that: the sorting mechanism comprises a sorting shell, an inclined part, a sorting channel, a vertical part, a funnel, a roller A, a conveying belt, a roller B, a gear A, a gear B, a gear C, a gear D, a motor A, a guide plate, a hot air cavity, a hot air pipe and a material guiding cylinder, wherein the sorting shell consists of a feeding vertical part and a screening inclined part, and the inclined part only allows plastic particles to move obliquely downwards in a single-layer state; the upper end of each sorting channel is provided with a cone opening which enables the off-long unqualified columnar plastic particles rolling downwards around the axis in the sorting shell inclined part to slide downwards obliquely along the axis into the sorting channel; a material guiding cylinder for filling qualified plastic particles into a nylon bag below is arranged below the sorting hole; air holes communicated with a hot air cavity on the inclined part are uniformly distributed on the inclined part of the sorting shell and positioned at the top between the vertical part and the sorting channel, and the hot air cavity is communicated with an air heating blowing device through a hot air pipe; the junction of the vertical part of the sorting shell and the inclined part of the sorting shell is provided with a structure for preventing plastic particles from being blocked at the junction; the top end of the vertical part of the sorting shell is provided with a funnel, and the vertical part of the sorting shell is internally provided with a structure for enabling plastic particles to transversely and uniformly fall from the funnel to the inclined part.

3. A filling device for plastic granules of different lengths according to claim 2, characterized in that: the vertical distance of the space in the inclined part of the sorting shell is 1.5 times of the average diameter of the qualified plastic particles; the transverse width of the sorting channel is 1.2 times of the average length of the qualified plastic particles, the maximum transverse width of the cone opening at the upper end of the sorting channel is 1.5 times of the average length of the unqualified plastic particles, and the depth of the cone opening at the upper end of the sorting channel is 0.5 times of the maximum transverse width of the cone opening.

4. A filling device for plastic granules of different lengths according to claim 2, characterized in that: a roller B is arranged at the top of the upper end of the inclined part of the sorting shell, and the axis of the roller B is parallel to the width of the inclined part; the bottom of the upper end of the inclined part of the sorting shell is provided with two rollers A which are distributed at intervals along the inclined downward direction and are parallel to the rollers B, and the two rollers A are provided with a conveying belt with the upper surface being flush with the inner bottom of the inclined part; the distance between the roller B and the conveying belt is 1.15 times of the average diameter of the qualified plastic particles; a gear C is arranged on a roll shaft where the roller A is positioned, a gear A is arranged on the roll shaft where the roller B is positioned, the gear A is in transmission connection with the gear C through the gear B, and the gear C is meshed with a gear D arranged on an output shaft of a motor A outside the sorting shell; a plurality of guide plates which enable plastic particles to transversely and uniformly enter the inclined part are arranged in the vertical part of the sorting shell.

5. The filling device for plastic granules of different lengths according to claim 1, characterized in that: the bag opening mechanism comprises a bracket B, wheels, a supporting plate, a swinging shaft, a motor F, a square frame B, sliding seats B, a motor G, clamping plates, an electric push rod B, a bag opening plate, a guide sleeve, a heat sealing device, an electric push rod C and nylon bags, wherein the bracket B with the wheels is hinged with the supporting plate which supports the nylon bags in an inclined state through the horizontal swinging shaft driven by the motor F, the square frame B is arranged at one end of the supporting plate, two sliding seats B driven by the motor G are oppositely or reversely slid in the square frame B, the lower ends of the two sliding seats B are respectively provided with a bag opening plate which stretches into the nylon bags and moves along with the opposite sides of the two sliding seats B to open the nylon bags, and the lower end of each sliding seat B is respectively provided with the clamping plate which tightly supports the ends of the nylon bags on the corresponding bag opening plate under the driving of the two electric push rods B; the heat sealing device which is driven by the electric push rod C and clamps and seals the mouth of the nylon bag is arranged in the guide sleeve at one side of the square frame B along the direction perpendicular to the movement of the sliding seat B.

6. The filling device for plastic granules of different lengths according to claim 5, wherein: a gear G is arranged on the pendulum shaft and meshed with a gear H arranged on an output shaft of the motor F; the box B is rotatably matched with two screws D in one-to-one transmission connection with the motor G, and each screw D is simultaneously in threaded fit with two sliding seats B.

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