Cutting device for plastic particle processing

Abstract

The invention discloses a cutting device for plastic particle processing, and belongs to the technical field of plastic particle processing, the cutting device comprises two symmetrically arranged vertical seats, limiting seats are fixedly connected between the inner walls of the vertical seats, guide assemblies are mounted on the outer sides of the limiting seats, and a guide seat is fixedly connected between the two symmetrically arranged limiting seats; a cutting assembly is arranged on the bottom side of the guide base, a screening assembly is installed at the bottom of the cutting assembly, under continuous friction conveying of the guide assembly, friction heating treatment can be conducted on the strip-shaped plastic parts, the hardened forms of the strip-shaped plastic parts are softened after the strip-shaped plastic parts are affected by heat, and therefore under cutting of the cutting assembly, the strip-shaped plastic parts can be cut into strips. By means of the cutting assembly, the softened strip-shaped plastic part can be cut by the cutting assembly, the jerking force generated when the strip-shaped plastic part and the cutting assembly are cut off is greatly weakened, and therefore the abrasion degree of the blades is reduced, losses generated when plastic particles are processed are reduced, meanwhile, the switching frequency of the blades is also greatly reduced, and the labor burden of workers is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of plastic particle processing, and more particularly to a cutting device for plastic particle processing. Background Art

[0002] Plastics are a renewable resource that can be recycled and reused. Conventionally, discarded plastics are often made into plastic pellets that can be easily made into other plastic products. In the production process of plastic pellets, it is usually necessary to go through extrusion molding, wire drawing, cooling and granulation. Therefore, the plastic granulation machinery is mainly composed of an extrusion system, a transmission system, a heating and cooling system, and a cutting system.

[0003] In the cutting system of a conventional plastic granulator, the working principle of the cutting part is to cut the plastic filaments through the reciprocating motion of the blade. When the blade reciprocates for a long time, due to the hardening of the plastic after molding, the blade will gradually become blunt after a long period of contact and cutting with the plastic, and affect the operating frequency and cutting shape of the blade cutting the plastic filaments. When the cutting frequency of the blade changes, the size and shape of the produced plastic particles are uneven, which further affects the reprocessing of the plastic particles. For this reason, this scheme proposes a cutting device for plastic particle processing. Summary of the invention

[0004] 1. Technical problems to be solved: In view of the problems existing in the prior art, the purpose of the present invention is to provide a cutting device for processing plastic particles, which can realize the transmission of finished strip-shaped plastic parts to the direction of a cutting component through the guidance of a guide component. Prior to this, under the continuous friction transportation of the guide component, the strip-shaped plastic parts will be subjected to friction heating treatment, so that the hardened form of the strip-shaped plastic parts will be softened after being affected by heat, thereby allowing the softened strip-shaped plastic parts to be cut by the cutting component after being cut by the cutting component, and the frustration force during cutting between the two is greatly weakened, thereby reducing the wear of the blade and the loss during plastic particle processing. At the same time, the frequency of blade switching is also greatly reduced, reducing the labor burden of personnel.

[0005] 2. Technical solution: To solve the above problems, the present invention adopts the following technical solutions.

[0006] A cutting device for processing plastic particles comprises two symmetrically arranged upright seats, a limiting seat being fixedly connected between the inner walls of the upright seats, a guide assembly being installed on the outer side of the limiting seat, a guide seat being fixedly connected between the two symmetrically arranged limiting seats, a cutting assembly being provided on the bottom side of the guide seat, a screening assembly being installed on the bottom of the cutting assembly, two groups of conveyor belts symmetrically arranged with each other are installed on the sides of the screening assembly, and a partition plate is provided between the inner walls of the two conveyor belts.

[0007] A further improvement is that the guide assembly includes a vertical frame fixedly connected to the outside of the limit seat, a movable frame is slidably connected between the inner walls of the vertical frame, a guide roller is rotatably connected between the inner walls of the movable frame, a motor 1 is installed on the outside of the vertical frame, the output end of the motor 1 passes through the inner walls of the movable frame and is fixedly connected to the transmission end of the guide roller, and an electric push rod is installed between the top of the movable frame and the vertical frame.

[0008] A further improvement is that the cutting assembly includes a cutting table provided at the bottom of the guide seat, two groups of symmetrical cutting holes are opened at the upper end of the cutting table, connecting plates are fixedly connected to both sides of the bottom end of the cutting table, and motor 2 is installed at the center end of the bottom of the cutting table. The output end of motor 2 passes through the upper side of the cutting table and is fixedly connected to a heating frame, and blades are installed on both sides of the left and right sides of the heating frame.

[0009] A further improvement is that the sub-screening assembly includes a sub-screening platform fixedly connected to the lower end of the connecting plate, a through hole is opened at the side end of the sub-screening platform, a storage groove is opened at the side of the sub-screening platform, sub-screening plate 1 and sub-screening plate 2 are installed between the inner walls of the sub-screening platform from top to bottom, one end of the sub-screening plate 2 is located between the inner walls of the through hole, and a collection box is inserted between the inner walls of the storage groove.

[0010] A further improvement is that a base is provided at the bottom side of the sub-screening platform, a plurality of telescopic rods are installed between the base and the side of the sub-screening platform, springs are sleeved at the outer ends of the telescopic rods, and a linear vibrator is installed at the side end of the sub-screening platform.

[0011] A further improvement is that the sub-screening plate 1 and the sub-screening plate 1 are both arranged with inclined surfaces, the sub-screening plate 1 includes a plate body 1 fixedly connected between the inner walls of the sub-screening platform, a stainless steel sub-screening piece 1 is embedded in the middle position of the plate body 1, and a discharge hole 1 is opened at the upper end of the front side of the plate body 1.

[0012] A further improvement is that the second sub-screening plate comprises a second plate body fixedly connected to the inner wall of the sub-screening platform, a second stainless steel sub-screening piece is embedded in the middle of the second plate body, and a second discharge hole is opened at the upper front end of the second plate body.

[0013] A further improvement is that the filter diameter of the second stainless steel sub-screening element is smaller than the filter diameter of the first stainless steel sub-screening element, and the second stainless steel sub-screening element is located on the upper side of the collecting box.

[0014] 3. Beneficial effects: Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: In the present invention, the finished strip of plastic parts is guided by the guide assembly and transported toward the cutting assembly. Prior to this, the strip of plastic parts is subjected to friction heating treatment under the continuous friction transportation of the guide assembly, so that the hardened form of the strip of plastic parts is softened after being affected by heat. Thus, the softened strip of plastic parts can be cut by the cutting assembly when the strip of plastic parts is cut, and the setback force during the cutting process is greatly weakened, thereby reducing the wear of the blade and the loss during the processing of plastic particles. At the same time, the frequency of blade switching is also greatly reduced, thereby reducing the labor burden of personnel. Then, after the plastic particles are cut off one by one, they are screened by the screening component, and particles of different sizes are sorted accordingly, and powder and ash smaller than 3mm fall to the bottom for collection. Finally, plastic particles of different sizes pass through conveyor belts with different filter diameters on both sides to complete the screening and transportation work, which is conducive to the unified processing of the plastic particles after the removal, avoiding the subsequent personnel from performing the screening operation for the second time, and improving the processing efficiency of plastic particles.

[0015] It should be noted that the structures not introduced in the present invention are the same as the prior art or can be implemented by using the prior art, and are not described in detail here because they do not involve the design points and improvement directions of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the guide assembly of the present invention; Figure 3 It is a schematic diagram of the structure of a part of the present invention; Figure 4 It is a schematic diagram of the structure of the cutting assembly of the present invention; Figure 5 It is a schematic diagram of the structure of the screening assembly of the present invention.

[0017] Description of the numbers in the figure: 1. Standing seat; 2. Limited seat; 3. Guide assembly; 31. Stand; 32. Movable frame; 33. Guide roller; 34. Motor 1; 35. Electric push rod; 4. Guide seat; 5. Cutting assembly; 51. Cutting table; 52. Cutting hole; 53. Connecting plate; 54. Motor 2; 55. Heating rack; 56. Blade; 6. Screening components; 61. screening table; 62. through hole; 63. storage tank; 64. One screening plate; 641. One plate body; 642. One stainless steel screening element; 643. One discharge hole; 65. Second screening plate; 651. Second plate body; 652. Second stainless steel screening element; 653. Second discharge hole; 66. Collection box; 67. Base; 68. Telescopic rod; 69. Spring; 610. Linear vibrator; 7. Conveyor belt; 8. Partition plate. DETAILED DESCRIPTION

[0018] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", "provided on" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0022] See also Figure 1-Figure 5A cutting device for processing plastic particles comprises two symmetrically arranged stands 1, a limiting seat 2 is fixedly connected between the inner walls of the stands 1, a guide assembly 3 is installed on the outer side of the limiting seat 2, a guide seat 4 is fixedly connected between the two symmetrically arranged limiting seats 2, a cutting assembly 5 is provided on the bottom side of the guide seat 4, a screening assembly 6 is installed on the bottom of the cutting assembly 5, two groups of symmetrically arranged conveyor belts 7 are installed on the sides of the screening assembly 6, and a partition plate 8 is provided between the inner walls of the two conveyor belts 7.

[0023] During use, in order to avoid the existing plastic pellet processing and cutting process, the subsequent blade is damaged due to the hardening of the plastic part, which affects the cutting frequency and the shape of the plastic pellets, and the blade needs to be replaced frequently. In this embodiment, the finished strip of plastic parts is first guided by the guide component 3 and transmitted to the direction of the cutting component 5. Before that, under the continuous friction transmission of the guide component 3, the strip of plastic parts will be subjected to friction heating treatment, so that the hardened shape of the strip of plastic parts will be softened after being affected by heat. Therefore, when the strip of plastic parts is cut by the cutting component 5, the softened strip of plastic parts can be cut by the cutting component 5, and the frustration force during the cutting between the two is greatly weakened, thereby reducing the wear of the blade and the loss during the processing of plastic pellets. At the same time, the frequency of blade switching is also greatly reduced, reducing the labor burden of personnel; Then, after the plastic particles are cut off one by one, they are screened by the screening component 6, and particles of different sizes are sorted accordingly, and powder and ash smaller than 3 mm are simultaneously dropped to the bottom for collection. Finally, plastic particles of different sizes pass through the conveyor belts 7 with different filter diameters on both sides to complete the screening and transportation work, which is conducive to the unified processing of the plastic particles after the removal by personnel, avoiding the subsequent personnel from performing the screening operation for the second time, and improving the processing efficiency of the plastic particles.

[0024] See also Figure 1-Figure 2 The guide assembly 3 includes a stand 31 fixedly connected to the outside of the limit seat 2, a movable frame 32 is slidably connected between the inner walls of the stand 31, a guide roller 33 is rotatably connected between the inner walls of the movable frame 32, a motor 34 is installed on the outside of the stand 31, the output end of the motor 34 passes through the inner walls of the movable frame 32 and is fixedly connected to the transmission end of the guide roller 33, and an electric push rod 35 is installed between the top of the movable frame 32 and the stand 31.

[0025] During use of the present invention, the height of the guide roller 33 can be adjusted according to the different sizes of the strip-shaped plastic parts. The personnel can drive the electric push rod 35 to cause the movable frame 32 to drive the guide roller 33 to move downward and directly press against the surface of the strip-shaped plastic part, and then drive the motor 34 again to cause the multiple guide rollers 33 located above the strip-shaped plastic parts to rotate, thereby driving the multiple strip-shaped plastic parts to be transmitted. During this period, the guide component 3 can not only reduce the external transmission parts used for conveying the strip-shaped plastic parts, but also perform plastic and softening treatment on the strip-shaped plastic parts during their conveying, thereby reducing the wear rate of the blade after hardening, and the cutting efficiency is also higher.

[0026] See also Figure 1-Figure 4 The cutting assembly 5 includes a cutting table 51 provided at the bottom of the guide seat 4, and two groups of symmetrical cutting holes 52 are opened at the upper end of the cutting table 51. Connecting plates 53 are fixedly connected to both sides of the bottom of the cutting table 51. A second motor 54 is installed at the center end of the bottom of the cutting table 51. The output end of the second motor 54 passes through the upper side of the cutting table 51 and is fixedly connected to a heating frame 55. Blades 56 are installed on both sides of the left and right sides of the heating frame 55.

[0027] During use of the present solution, after the strip-shaped plastic parts are guided by the guide assembly 3 and the guide seat 4 and are located inside the corresponding cutting holes 52, the motor 2 54 drives the heating frame 55 and the blade 56 to perform synchronous transmission after being driven to rotate, thereby prompting the blade 56 to cut the continuously conveyed strip-shaped plastic parts to generate particles. At the same time, during this period, the blade 56 is cutting, and the heating frame 55 synchronously heats the blade 56, prompting the blade 56 to soften the plastic when it contacts the strip-shaped plastic parts due to the high temperature, so that the blade 56 can cut the strip-shaped plastic parts more efficiently, reduce the wear when the two are in contact, and reduce the loss rate of the blade 56.

[0028] See also Figure 1-Figure 5 The sub-screening assembly 6 includes a sub-screening platform 61 fixedly connected to the lower end of the connecting plate 53, a through hole 62 is opened at the side end of the sub-screening platform 61, and a receiving groove 63 is opened on the side of the sub-screening platform 61. A sub-screening plate 1 64 and a sub-screening plate 2 65 are installed between the inner walls of the sub-screening platform 61 from top to bottom, one end of the sub-screening plate 2 65 is located between the inner walls of the through hole 62, and a collecting box 66 is inserted between the inner walls of the receiving groove 63.

[0029] More specifically, a base 67 is provided on the bottom side of the screening platform 61, a plurality of telescopic rods 68 are installed between the base 67 and the side of the screening platform 61, a spring 69 is sleeved on the outer end of the telescopic rod 68, and a linear vibrator 610 is installed on the side end of the screening platform 61.

[0030] More specifically: the sub-screening plates 64 and 64 are both arranged with inclined surfaces, and the sub-screening plate 64 includes a plate body 641 fixedly connected between the inner walls of the sub-screening platform 61, a stainless steel sub-screening piece 642 is embedded in the middle position of the plate body 641, and a discharge hole 643 is opened at the upper front end of the plate body 641.

[0031] More specifically, the second sub-screening plate 65 includes a second plate body 651 fixedly connected to the inner wall of the sub-screening platform 61, a second stainless steel sub-screening piece 652 is embedded in the middle of the second plate body 651, and a second discharge hole 653 is opened at the front upper end of the second plate body 651.

[0032] More specifically, the filter diameter of the second stainless steel sub-screening element 652 is smaller than the filter diameter of the first stainless steel sub-screening element 642 , and the second stainless steel sub-screening element 652 is located on the upper side of the collecting box 66 .

[0033] During the use of this solution, when the strip-shaped plastic parts are cut by the blade 56 and formed into particles, the plastic particles first fall on the surface of the plate body 641, and then driven by the linear vibrator 610, the plastic particles are vibrated and inclined, and continuously move to the discharge hole 643. At this time, under the influence of the aperture of the stainless steel screening element 642, the 3mm-9mm plastic particles leak to the surface of the plate body 2 651, and the plastic particles larger than 9mm gradually fall into the inside of the discharge hole 643, and the conveying and collection operation is completed by the conveyor belt 7 on one side; After that, the 3mm-9mm plastic particles falling on the second plate 651 are vibrated again, and continuously pass through the second stainless steel screening element 652 and gradually fall into the second discharge hole 653. Among them, the plastic particles smaller than 3mm fall into the collection box 66 below when passing through the second stainless steel screening element 652, and the subsequent personnel collect and process them uniformly. During the vibration of the screening platform 61 , the vibration of the linear vibrator 610 causes the telescopic rod 68 and the spring 69 to continuously reciprocate up and down, thereby achieving a shaking screening operation for the plastic particles inside the screening platform 61 .

[0034] The above-described embodiments only express a certain implementation mode of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A cutting device for processing plastic particles, comprising two symmetrically arranged stands (1), characterized in that: A limit seat (2) is fixedly connected between the inner walls of the stand (1), a guide assembly (3) is installed on the outer side of the limit seat (2), a guide seat (4) is fixedly connected between two symmetrically arranged limit seats (2), a cutting assembly (5) is provided on the bottom side of the guide seat (4), a screening assembly (6) is installed on the bottom of the cutting assembly (5), two groups of symmetrically arranged conveyor belts (7) are installed on the side of the screening assembly (6), and a partition plate (8) is provided between the inner walls of the two conveyor belts (7).

2. A plastic particle processing cutting device according to claim 1, characterized in that: The guide assembly (3) comprises a stand (31) fixedly connected to the outer side of the limit seat (2), a movable frame (32) slidably connected between the inner walls of the stand (31), a guide roller (33) rotatably connected between the inner walls of the movable frame (32), a motor 1 (34) installed on the outer side of the stand (31), an output end of the motor 1 (34) passing through the inner walls of the movable frame (32) and fixedly connected to the transmission end of the guide roller (33), and an electric push rod (35) installed between the top end of the movable frame (32) and the stand (31).

3. A plastic particle processing cutting device according to claim 1, characterized in that: The cutting assembly (5) comprises a cutting table (51) provided at the bottom of the guide seat (4); two groups of symmetrical cutting holes (52) are opened at the upper end of the cutting table (51); connecting plates (53) are fixedly connected to both sides of the bottom end of the cutting table (51); a second motor (54) is installed at the central end of the bottom of the cutting table (51); the output end of the second motor (54) passes through the upper side of the cutting table (51) and is fixedly connected to a heating frame (55); blades (56) are installed on both left and right sides of the heating frame (55).

4. A plastic particle processing cutting device according to claim 3, characterized in that: The sub-screening assembly (6) comprises a sub-screening platform (61) fixedly connected to the lower end of the connecting plate (53), a through hole (62) being provided at a side end of the sub-screening platform (61), a receiving groove (63) being provided at a side of the sub-screening platform (61), a sub-screening plate 1 (64) and a sub-screening plate 2 (65) being installed in sequence from top to bottom between the inner walls of the sub-screening platform (61), one end of the sub-screening plate 2 (65) being located between the inner walls of the through hole (62), and a collecting box (66) being inserted between the inner walls of the receiving groove (63).

5. A plastic particle cutting device according to claim 4, characterized in that: A base (67) is provided on the bottom side of the sub-screening platform (61), a plurality of telescopic rods (68) are installed between the base (67) and the side of the sub-screening platform (61), springs (69) are sleeved on the outer ends of the telescopic rods (68), and a linear vibrator (610) is installed on the side end of the sub-screening platform (61).

6. A plastic particle processing cutting device according to claim 4, characterized in that: The sub-screening plate 1 (64) and the sub-screening plate 1 (64) are both arranged with inclined surfaces. The sub-screening plate 1 (64) comprises a plate body 1 (641) fixedly connected to the inner wall of the sub-screening platform (61), a stainless steel sub-screening piece 1 (642) is embedded in the middle of the plate body 1 (641), and a discharge hole 1 (643) is opened at the upper front end of the plate body 1 (641).

7. A plastic particle processing cutting device according to claim 4, characterized in that: The second screening plate (65) comprises a second plate body (651) fixedly connected to the inner wall of the screening platform (61), a second stainless steel screening piece (652) is embedded in the middle of the second plate body (651), and a second discharge hole (653) is opened at the upper front end of the second plate body (651).

8. A plastic particle cutting device according to claim 7, characterized in that: The filter diameter of the second stainless steel sub-screening element (652) is smaller than the filter diameter of the first stainless steel sub-screening element (642), and the second stainless steel sub-screening element (652) is located on the upper side of the collection box (66).

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