Cleaning device for discharging square pipe of ABS condensation unit extruder

Abstract

The invention relates to the field of square pipe cleaning, in particular to an ABS condensation unit extruder discharging square pipe cleaning device which comprises a probing rod capable of stretching into a square pipe from one end of the square pipe in the extending direction of the square pipe, the number of scrapers is two, the two scrapers are arranged on the two sides of the probing rod respectively, and the scrapers have a contracted state and an unfolded state. The scraping ends of the scraping plates make contact with the inner wall of the square pipe when the scraping plates are in the unfolded state, unfolding units are arranged between the scraping plates and the probing rods and used for driving the scraping plates to be switched between the contraction state and the unfolded state, when the scraping plates are in the contraction state, the distance between the scraping ends of the two scraping plates is minimum, and when the scraping plates are in the unfolded state, the distance between the scraping ends of the two scraping plates is smaller than the distance between the scraping ends of the two scraping plates. And the distance between the scraping ends of the two scraping plates is the largest. According to the square pipe cleaning device, the square pipe cleaning effect can be improved, and meanwhile the burden of workers during square pipe cleaning can be relieved.

Description

Technical Field

[0001] The present invention relates to the field of square pipe cleaning, and specifically to a cleaning device for the feeding square pipe of an ABS agglomeration unit extruder. Background Art

[0002] Due to process factors, the feeding square pipe at the inlet of the ABS agglomeration unit extruder needs to be frequently cleaned. The space inside the pipe is narrow and blocked severely. It needs to be cleaned 1-2 times a week, which seriously affects the actual production capacity.

[0003] Chinese Patent Application CN117463722A discloses a cleaning device for the inner cavity of a square pipe, including a frame. A control panel is arranged on the frame. An annular opening is arranged on the frame. An inspection cover is arranged on the frame. A cleaning device is arranged on the frame. The cleaning device includes: a hydraulic cylinder, which is fixedly connected to the inner wall of one side of the frame. The output end of the hydraulic cylinder is fixedly connected with a ball slider. The side inner wall of the ball slider is threadedly connected with a ball screw. A first bevel gear is fixedly connected to the ball screw. A second bevel gear is meshed with the first bevel gear. A straight rod is fixedly connected to the inner ring of the second bevel gear. One end of the straight rod is fixedly connected with a mounting plate.

[0004] The above solution is mainly for cleaning when there is oil stain in the square pipe. When the ABS agglomeration unit extruder extrudes materials through the feeding square pipe, the materials remaining in the feeding square pipe are highly viscous and mostly require manual cleaning. The existing manual cleaning tools are shovels or iron pokers. However, when using the above tools for cleaning, the workload is large, it is laborious during cleaning, and the inside of the square pipe cannot be completely cleaned. Summary of the Invention

[0005] To address the above problems, a cleaning device for the feeding square pipe of an ABS agglomeration unit extruder is provided. By arranging a scraper on the probing rod that can open and contract, during use, the probing rod is inserted into the square pipe from one end of the square pipe. A shovel is provided at the insertion end of the probing rod. First, the residues attached to the bottom of the square pipe are scraped off by the shovel at the end of the probing rod. At this time, the two scrapers arranged on both sides of the probing rod are in a contracted state. In this way, when the probing rod extends into the square pipe, the two scrapers located on both sides of the probing rod will not hinder the extension of the probing rod. And the shovel at the end of the probing rod is in a pointed structure, so the probing rod will be more convenient when extending into the square pipe. After scraping off the attachments at the bottom of the square pipe by the shovel at the end of the probing rod, the scrapers on both sides of the probing rod gradually rotate and open. When the end of the scraper abuts against the inner wall of the square pipe, the probing rod is pulled out along the extension direction of the square pipe. Since the scrapers on both sides of the probing rod are in contact with the two inner walls of the square pipe at this time, in the process of pulling the probing rod out of the square pipe, the scrapers can scrape off and take out the residues attached to the inner wall of the square pipe. Then, the probing rod is inserted again to repeat the above steps. Since there are a total of four surfaces on the inner wall of the square pipe, each time the probing rod extends, it can clean two of the surfaces. And to ensure that the probing rod can be smoothly inserted into the square pipe, the width of the scraper is smaller than the width of the inner wall of the square pipe. For the convenience of subsequent description, two corresponding inner walls in the square pipe are called a group, and there are two groups of inner walls in the square pipe. When the probing rod cleans the two inner walls of the same group, it needs to extend into the square pipe at least twice to ensure that the inner wall is completely cleaned. Then, the probing rod is rotated 90 degrees and the above steps are repeated, so that the inner wall of the square pipe can be completely cleaned.

[0006] To solve the problems of the prior art, the present invention provides a cleaning device for the feeding square pipe of an ABS agglomeration unit extruder, including a probing rod that can extend into the square pipe from one end of the square pipe along the extension direction of the square pipe. There are two scrapers, and the two scrapers are respectively arranged on both sides of the probing rod. The scraper has a contracted state and an expanded state. The scraping end of the scraper contacts the inner wall of the square pipe when the scraper is in the expanded state. An expansion unit is arranged between the scraper and the probing rod, and the expansion unit is used to drive the scraper to switch between the contracted state and the expanded state. When the scraper is in the contracted state, the distance between the scraping ends of the two scrapers is the smallest, and when the scraper is in the expanded state, the distance between the scraping ends of the two scrapers is the largest.

[0007] Preferably, a shovel is fixedly arranged at the end of the probing rod. When the probing rod extends into the square pipe, the end of the probing rod with the shovel is located inside the square pipe.

[0008] Preferably, an unfolding groove is formed in the probing rod on one side of the scraping plate along the extending direction of the probing rod. A pushing block is slidably arranged in the unfolding groove along the extending direction of the unfolding groove. When the scraping plate is in a contracted state, the pushing block is located at one end of the unfolding groove close to the spade. When the scraping plate switches from the contracted state to the unfolded state, the pushing block moves along the extending direction of the unfolding groove away from the spade.

[0009] Preferably, a threaded rod is rotatably arranged at the end of the pushing rod. The threaded rod penetrates through the probing rod along the extending direction of the probing rod and is in threaded cooperation with the probing tube. The first handle is arranged at the end of the threaded rod away from the pushing block, and the first handle drives the threaded rod to rotate under the action of an external force.

[0010] Preferably, a corrugated cover is arranged on the unfolding groove. The two ends of the corrugated cover are respectively fixedly connected with the pushing block and the end of the unfolding groove. The corrugated sleeve and the unfolding groove form an unfolding cavity, and the threaded rod is located in the unfolding cavity.

[0011] Preferably, a support frame is arranged at the end of the probing rod. The pulling-out unit is arranged on the probing rod. The pulling-out unit can pull out the probing tube located in the square tube, and the support frame provides support for the pulling-out unit when pulling out the probing tube.

[0012] Preferably, a threaded groove is formed in the outer peripheral wall of the probing rod. The rotating ring is rotatably arranged on the support frame and sleeved on the periphery of the probing rod. The inner ring of the rotating ring is in threaded cooperation with the outer wall of the probing rod. A pulling-out groove is formed in the side wall of the probing rod along the extending direction of the probing rod. The probing rod penetrates through the support frame and is in sliding cooperation with the support frame. The support frame is key-connected with the pulling-out groove on the probing rod.

[0013] Preferably, a speed reduction unit is arranged on one side of the rotating ring. A second handle is arranged on the speed reduction unit. When the second handle rotates, it drives the rotating ring to rotate through the speed reduction unit.

[0014] Preferably, a suction cup is arranged on the support frame. Before the pulling-out unit pulls out the probing rod from the square tube, the suction cup is attached to the end of the square tube.

[0015] Preferably, a positioning unit is arranged on the support frame. The positioning unit includes a positioning sleeve. The positioning sleeve is a square tubular structure, and the inner cross-section of the positioning sleeve is completely fitted with that of the square tube.

[0016] The beneficial effects of the present invention compared with the prior art are:

[0017] 1. The present invention is provided with a scraper on the probing rod that can be opened and contracted. When in use, the probing rod is inserted into the square tube from one end of the square tube. A shovel is provided at the insertion end of the probing rod. First, the residue attached to the bottom of the square tube is scraped off by the shovel at the end of the probing rod. At this time, the two scrapers arranged on both sides of the probing rod are in a contracted state. In this way, when the probing rod extends into the square tube, the two scrapers located on both sides of the probing rod will not hinder the extension of the probing rod. And the shovel at the end of the probing rod is in a pointed structure, so that the probing rod will be more lightweight when probing into the square tube. After scraping off the attachment at the bottom of the square tube by the shovel provided at the end of the probing rod, the scrapers on both sides of the probing rod gradually rotate and open. When the end of the scraper abuts against the inner wall of the square tube, the probing rod is pulled out along the extending direction of the square tube. Since the scrapers on both sides of the probing rod are in contact with the two inner walls of the square tube respectively at this time, in the process of pulling the probing rod out of the square tube, the scrapers can scrape off and take out the residue attached to the inner wall of the square tube. Then the probing rod is inserted again and the above steps are repeated. Since there are four surfaces in total on the inner wall of the square tube, the probing rod can clean two of the surfaces each time it is inserted. And to ensure that the probing rod can be smoothly inserted into the square tube, the width of the scraper is smaller than the width of the inner wall of the square tube. For the convenience of subsequent description, two corresponding inner walls in the square tube are called a group. There are two groups of inner walls in the square tube. When the probing rod cleans the two inner walls in the same group, it needs to be inserted into the square tube at least twice to ensure that the inner wall is completely cleaned. Then the probing rod is rotated 90 degrees and the above steps are repeated, so that the inner wall of the square tube can be completely cleaned.

[0018] 2. The present invention is provided with a support frame and a pulling unit, making it more labor-saving when the probing rod is pulled out from the square tube.

[0019] 3. The present invention is provided with a positioning unit on the support frame, enabling the scraper on the probing rod to be positioned by the positioning unit before unfolding. After being positioned by the positioning unit, the probing rod is in the central position of the square tube, and the two scrapers arranged on the probing rod can be in contact with the two inner walls of the square tube simultaneously after unfolding. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional schematic diagram of the cleaning device for the feeding square tube of the ABS agglomeration unit extruder arranged in the square tube.

[0021] Figure 2 is of the cleaning device for the feeding square tube of the ABS agglomeration unit extruder Figure 1 partial enlarged schematic diagram at A in

[0022] Figure 3 is a three-dimensional schematic diagram of the scraper of the cleaning device for the feeding square tube of the ABS agglomeration unit extruder in a contracted state.

[0023] Figure 4It is a three-dimensional schematic diagram when the scraper of the cleaning device for the square pipe of the ABS condensation unit extruder is in the unfolded state.

[0024] Figure 5 It is the cleaning device for the square pipe of the ABS condensation unit extruder Figure 4 The partial enlarged schematic diagram at position B in it.

[0025] Figure 6 It is a side view when the cleaning device for the square pipe of the ABS condensation unit extruder is arranged in the square pipe.

[0026] Figure 7 It is when the cleaning device for the square pipe of the ABS condensation unit extruder is arranged in the square pipe Figure 6 The sectional schematic diagram at C-C in it.

[0027] Figure 8 It is a sectional three-dimensional schematic diagram when the cleaning device for the square pipe of the ABS condensation unit extruder is arranged in the square pipe.

[0028] Figure 9 It is the cleaning device for the square pipe of the ABS condensation unit extruder Figure 8 The partial enlarged schematic diagram at position D in it.

[0029] Figure 10 It is the cleaning device for the square pipe of the ABS condensation unit extruder Figure 8 The partial enlarged schematic diagram at position E in it.

[0030] The reference numerals in the figure are:

[0031] 1. Square pipe; 2. Probing rod; 21. Shovel; 22. Expansion slot; 3. Scraper; 4. Expansion unit; 41. Pushing block; 42. Threaded rod; 43. First handle; 44. Prismatic sleeve; 45. First connecting rod; 46. Second connecting rod; 17. Corrugated cover; 5. Support frame; 51. Suction cup; 52. Extension foot; 53. On-off valve; 6. Pull-out unit; 61. Rotating ring; 62. Pull-out slot; 63. Reduction unit; 631. Rotating wheel; 632. Timing belt; 64. Second handle; 7. Positioning unit; 71. Positioning sleeve; 72. Extension ear; 73. Sliding rod. Specific embodiments

[0032] In order to further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0033] Refer to Figure 1 And Figure 3: ABS agglomeration unit extruder feeding square pipe cleaning device, including a probing rod 2 that can extend into the square pipe 1 from one end of the square pipe 1 along the extension direction of the square pipe 1. There are two scraping plates 3, and the two scraping plates 3 are respectively arranged on both sides of the probing rod 2. The scraping plate 3 has a contracted state and an expanded state. The scraping end of the scraping plate 3 contacts the inner wall of the square pipe 1 when the scraping plate 3 is in the expanded state. An expansion unit 4 is arranged between the scraping plate 3 and the probing rod 2. The expansion unit 4 is used to drive the scraping plate 3 to switch between the contracted state and the expanded state. When the scraping plate 3 is in the contracted state, the distance between the scraping ends of the two scraping plates 3 is the smallest. When the scraping plate 3 is in the expanded state, the distance between the scraping ends of the two scraping plates 3 is the largest.

[0034] The working principle is as follows. When in use, the probing rod 2 is inserted into the square pipe 1 from one end of the square pipe 1. A shovel 21 is arranged at the insertion end of the probing rod 2. First, the residues attached to the bottom of the square pipe 1 are scraped off by the shovel 21 at the end of the probing rod 2. At this time, the two scraping plates 3 arranged on both sides of the probing rod 2 are in the contracted state. In this way, when the probing rod 2 extends into the square pipe 1, the two scraping plates 3 located on both sides of the probing rod 2 will not hinder the extension of the probing rod 2. And the shovel 21 at the end of the probing rod 2 has a pointed structure. In this way, the probing rod 2 will be more convenient when extending into the square pipe 1. After scraping off the attachment at the bottom of the square pipe 1 by the shovel 21 arranged at the end of the probing rod 2, the scraping plates 3 located on both sides of the probing rod 2 gradually rotate and open. When the end of the scraping plate 3 abuts against the inner wall of the square pipe 1, the probing rod 2 is pulled out along the extension direction of the square pipe 1. Since the scraping plates 3 on both sides of the probing rod 2 are respectively in contact with the two inner walls of the square pipe 1 at this time, in the process of pulling out the probing rod 2 from the square pipe 1, the scraping plates 3 can scrape off and take out the residues attached to the inner wall of the square pipe 1. Then the probing rod 2 is inserted again and the above steps are repeated. Since there are a total of four surfaces on the inner wall of the square pipe 1, the probing rod 2 can clean two of the surfaces each time it extends. And to ensure that the probing rod 2 can be smoothly inserted into the square pipe 1, the width of the scraping plate 3 is smaller than the width of the inner wall of the square pipe 1. For the convenience of subsequent description, the two corresponding inner walls in the square pipe 1 are called a group. There are two groups of inner walls in the square pipe 1. When the probing rod 2 cleans the two inner walls of the same group, it needs to extend into the square pipe 1 at least twice to ensure that the inner wall is completely cleared. Then the probing rod 2 is rotated 90 degrees and the above steps are repeated. In this way, the inner wall of the square pipe 1 can be completely cleaned, avoiding the situation that when the traditional square pipe 1 is cleaned, the residues on the inner wall of the square pipe 1 are shoveled by a slender cleaning rod. When the cleaning rod completely extends into the square pipe 1, the end of the cleaning rod located in the square pipe 1 is relatively far from the worker's hand-held place, and it is more laborious to clean. And there is a situation where the residues in the square pipe 1 cannot be completely scraped off by scraping the residues in the square pipe 1 little by little with the cleaning rod, and the cleaning effect is poor. However, with the scraping plate 3 in the present invention, the scraping plate 3 expands after extending into the square pipe 1 along with the probing rod 2, and can completely scrape off the residues attached to the inner wall of the square pipe 1 by sliding out of the square pipe 1 synchronously with the probing rod 2.

[0035] Reference Figure 3 : A shovel 21 is fixedly arranged at the end of the probing rod 2. When the probing rod 2 extends into the square tube 1, the end of the probing rod 2 where the shovel 21 is arranged is located inside the square tube 1.

[0036] By arranging the shovel 21 at the end of the probing rod 2, when the staff extends the probing rod 2 into the square tube 1, the residues at the deepest part of the square tube 1 can be shoveled and cleaned, which improves the flexibility during cleaning and thus improves the cleaning effect.

[0037] Reference Figure 4 and Figure 10 : An unfolding groove 22 is formed in the probing rod 2 on one side of the scraping plate 3 along the extending direction of the probing rod 2. A pushing block 41 is slidably arranged in the unfolding groove 22 along the extending direction of the unfolding groove 22. When the scraping plate 3 is in the contracted state, the pushing block 41 is located at one end of the unfolding groove 22 close to the shovel 21. When the scraping plate 3 switches from the contracted state to the unfolded state, the pushing block 41 moves along the extending direction of the unfolding groove 22 in a direction away from the shovel 21.

[0038] Reference Figures 8 - 10 : A threaded rod 42 is rotatably arranged at the end of the pushing rod. The threaded rod 42 penetrates through the probing rod 2 along the extending direction of the probing rod 2 and is in threaded fit with the probing tube. A first handle 43 is arranged at the end of the threaded rod 42 away from the pushing block 41. The first handle 43 drives the threaded rod 42 to rotate under the action of an external force.

[0039] A prism sleeve 44 is provided at the end of the probing rod 2 near the first handle 43. When rotating the first handle 43, the staff can hold the prism sleeve 44 with the other hand to prevent the probing rod 2 from slipping when rotating the first handle 43. The unfolding unit 4 further includes a first connecting rod 45 and a second connecting rod 46. One end of the first connecting rod 45 is hinged to the pushing block 41, and one end of the second connecting rod 46 is hinged to the end of the unfolding slot 22 away from the shovel 21. The end of the first connecting rod 45 away from the pushing block 41 is hinged to the end of the second connecting rod 46. It should be noted that when the scraping plate 3 is in the retracted state, the included angle between the first connecting rod 45 and the second connecting rod 46 is an obtuse angle, and the tip of the obtuse angle faces away from the probing rod 2. The scraping plate 3 is arranged on the hinged side of the second connecting rod 46 and the first connecting rod 45, and the scraping plate 3 is fixedly arranged on the second connecting rod 46. When the pushing block 41 moves in the unfolding slot 22 towards the side away from the shovel 21, the first connecting rod 45 drives the second connecting rod 46 under the drive of the pushing block 41, and the included angle between the first connecting rod 45 and the second connecting rod 46 gradually decreases. The scraping plate 3 arranged on the second connecting rod 46 gradually approaches the inner wall of the square tube 1 under the action of the first connecting rod 45. When the scraping plate 3 contacts the inner wall of the square tube 1, the pushing block 41 stops moving. Then, the probing rod 2 is pulled out of the square tube 1 along the extending direction of the square tube 1, and the scraping plate 3 slides out of the square tube 1 together with the probing rod 2. The scraping plate 3 scrapes off the residues attached to the inner wall of the square tube 1 during the sliding out process.

[0040] Refer to Figure 10 : A corrugated cover 17 is covered on the unfolding slot 22. The two ends of the corrugated cover 17 are respectively fixedly connected to the pushing block 41 and the end of the unfolding slot 22. The corrugated sleeve and the unfolding slot 22 form an unfolding cavity, and the threaded rod 42 is located in the unfolding cavity.

[0041] Since the threaded rod 42 is in threaded fit with the probing rod 2, when the corrugated cover 17 is not provided, after the scraper 3 is unfolded, when the probing rod 2 drives the scraper 3 to slide out of the square pipe 1, when the scraper 3 scrapes the residues on the inner wall of the square pipe 1, the residues will fall onto the threaded rod 42. Since the residues are sticky, it is easy for the threads on the threaded rod 42 to be adhered by the residues, which will further cause the threaded rod 42 to be unable to smoothly thread-fit with the probing rod 2, and ultimately cause the threaded rod 42 to be unable to drive the pushing block 41 to slide in the unfolding groove 22. However, when the corrugated cover 17 is provided, the above situation can be avoided. After the corrugated cover 17 is provided, since the unfolding groove 22 has openings on both sides of the probing rod 2, two corrugated covers 17 need to be provided. The two corrugated covers 17 are respectively arranged on the two openings. In this way, the corrugated cover 17 and the unfolding groove 22 form an unfolding cavity, and the threaded rod 42 is arranged in the unfolding cavity. During the process of the scraper 3 scraping the inner wall of the square pipe 1, the residues of the square pipe 1 scraped by the scraper 3 can be blocked by the corrugated cover 17, preventing the residues from falling on the threaded rod 42, and thus ensuring that the threaded rod 42 can stably thread-fit with the probing rod 2.

[0042] Refer to Figure 2 、 Figure 3 and Figure 5 : A support frame 5 is provided at the end of the probing rod 2. A pulling-out unit 6 is arranged on the probing rod 2. The pulling-out unit 6 can pull out the probing pipe located in the square pipe 1, and the support frame 5 provides support for the pulling-out unit 6 when pulling out the probing pipe.

[0043] During use, the support frame 5 is placed at the end of the square pipe 1. When the pulling-out unit 6 pulls out the square pipe 1, a reaction force is generated on the support frame 5, making the support frame 5 better adhere to the end of the square pipe 1, so as to realize that the support frame 5 provides support for the pulling-out unit 6 when the pulling-out unit 6 pulls out the probing rod 2.

[0044] Refer to Figure 3 、 Figure 4 and Figure 9 : A threaded groove is provided on the outer peripheral wall of the probing rod 2. A rotating ring 61 is rotatably arranged on the support frame 5 and sleeved on the periphery of the probing rod 2. The inner ring of the rotating ring 61 is in threaded fit with the outer wall of the probing rod 2. A pulling-out groove 62 is provided on the side wall of the probing rod 2 along the extending direction of the probing rod 2. The probing rod 2 penetrates through the support frame 5 and is in sliding fit with the support frame 5. The support frame 5 is in key connection with the pulling-out groove 62 on the probing rod 2.

[0045] Refer to Figure 4 and Figure 9 : A deceleration unit 63 is provided on one side of the rotating ring 61. A second handle 64 is arranged on the deceleration unit 63. When the second handle 64 rotates, it drives the rotating ring 61 to rotate through the deceleration unit 63.

[0046] The deceleration unit 63 includes a rotating wheel 631 and a synchronous belt 632. The rotating wheel 631 is rotatably arranged on one side of the rotating ring 61. The rotating wheel 631 is arranged on the support frame 5. The synchronous belt 632 is sleeved on the rotating ring 61 and the rotating wheel 631 respectively. The outer diameter of the rotating ring 61 is larger than the diameter of the rotating wheel 631. The second handle 64 is fixedly arranged at the end of the rotating wheel 631. When in use, the staff rotates the second handle 64, so that the rotating wheel 631 connected to the second handle 64 rotates, and under the drive of the synchronous belt 632, the rotating ring 61 is driven to rotate. Since the rotating ring 61 is in threaded cooperation with the side wall of the probing rod 2, and the pulling-out groove 62 on the probing rod 2 is in key connection with the support frame 5, when the rotating ring 61 rotates, the probing rod 2 does not rotate synchronously with the rotating ring 61, but gradually slides out of the square tube 1 along the extending direction of the square tube 1. At this time, the probing rod 2 and the support frame 5 are in a sliding state with each other.

[0047] Refer to Figure 6 : A suction cup 51 is arranged on the support frame 5. Before the pulling-out unit 6 pulls the probing rod 2 out of the square tube 1, the suction cup 51 is attached to the end of the square tube 1.

[0048] In this way, it can avoid the shaking phenomenon when the support frame 5 supports the pulling-out unit 6 and the probing rod 2. An extension foot 52 is fixedly arranged on the support frame 5. There are multiple extension feet 52, and the extension feet 52 are evenly arranged around the probing rod 2. The suction cup 51 is arranged at the end of the extension foot 52. A switching valve 53 is arranged at the tail of the suction cup 51. When the support frame 5 needs to be attached to the end of the square tube 1, the switching valve 53 is in the closed state, and the support frame 5 is adsorbed on the end of the square tube 1 through the suction cup 51. After the cleaning is completed, the switching valve 53 is opened, and the suction cup 51 is detached from the adsorption, so that the support frame 5 can be removed.

[0049] Refer to Figure 2 、 Figure 3 and Figure 7 : A positioning unit 7 is arranged on the support frame 5. The positioning unit 7 includes a positioning sleeve 71. The positioning sleeve 71 is a square tubular structure and is completely fitted with the inner cross-section of the square tube 1.

[0050] The positioning unit 7 includes an extension ear 72 and a sliding rod 73. The extension ear 72 is fixedly arranged on the support frame 5. The sliding rod 73 is fixedly arranged at the end of the positioning sleeve 71. The sliding rod 73 penetrates through the extension ear 72 along the extending direction of the probing rod 2 and is in sliding cooperation with the extension ear 72. Before the scraping plates 3 on the probing rod 2 are unfolded when the probing rod 2 extends into the square tube 1, first insert the positioning sleeve 71 into the square tube 1, then adsorb the suction pipe on the support frame 5 to the end of the square tube 1, and then remove the positioning sleeve 71 inserted into the square tube 1. In this way, when the two scraping plates 3 on the probing rod 2 are unfolded, they can contact the inner wall of the square tube 1 synchronously.

[0051] The above embodiments only represent one or several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the appended claims.

Claims

1. ABS coagulation unit extruder feeding square tube cleaning device, characterized in that: The invention comprises a probe rod (2) which can be extended into the square tube (1) from one end of the square tube (1) along the extension direction of the square tube (1); two scrapers (3) are provided, and the two scrapers (3) are respectively provided on both sides of the probe rod (2); the scrapers (3) have a retracted state and an expanded state; the scraping end of the scraper (3) contacts the inner wall of the square tube (1) when the scraper (3) is in the expanded state; an expansion unit (4) is provided between the scraper (3) and the probe rod (2); the expansion unit (4) is used to drive the scraper (3) to switch between the retracted state and the expanded state; when the scraper (3) is in the retracted state, the distance between the scraping ends of the two scrapers (3) is the smallest; when the scraper (3) is in the expanded state, the distance between the scraping ends of the two scrapers (3) is the largest.

2. The ABS coagulation unit extruder blanking square tube cleaning device according to claim 1 is characterized in that: A shovel (21) is fixedly provided at the end of the probe rod (2). When the probe rod (2) is inserted into the square tube (1), the end of the probe rod (2) provided with the shovel (21) is located inside the square tube (1).

3. The ABS coagulation unit extruder blanking square tube cleaning device according to claim 1 is characterized in that: An expansion groove (22) is provided on the exploration rod (2) at one side of the scraper (3) along the extension direction of the exploration rod (2), and a push block (41) is slidably arranged in the expansion groove (22) along the extension direction of the expansion groove (22); when the scraper (3) is in a retracted state, the push block (41) is located at one end of the expansion groove (22) close to the shovel (21); when the scraper (3) switches from the retracted state to the expanded state, the push block (41) moves along the extension direction of the expansion groove (22) in a direction away from the shovel (21).

4. The ABS condensation unit extruder blanking square tube cleaning device according to claim 3 is characterized in that: A threaded rod (42) is rotatably arranged at the end of the push rod. The threaded rod (42) penetrates the probe rod (2) along the extension direction of the probe rod (2) and cooperates with the probe pipe thread. A first handle (43) is arranged at the end of the threaded rod (42) away from the push block (41). The first handle (43) drives the threaded rod (42) to rotate under the action of an external force.

5. The ABS coagulation unit extruder blanking square tube cleaning device according to claim 4 is characterized in that: A corrugated cover (17) is provided on the expansion groove (22), and two ends of the corrugated cover (17) are respectively fixedly connected to the push block (41) and the end of the expansion groove (22), and the corrugated cover and the expansion groove (22) form an expansion cavity, and the threaded rod (42) is located in the expansion cavity.

6. The ABS coagulation unit extruder blanking square tube cleaning device according to claim 1, characterized in that: A support frame (5) is arranged at the end of the probe rod (2), and a pull-out unit (6) is arranged on the probe rod (2). The pull-out unit (6) can pull out the probe tube located in the square tube (1), and the support frame (5) provides support for the pull-out unit (6) when pulling out the probe tube.

7. The ABS coagulation unit extruder blanking square tube cleaning device according to claim 6 is characterized in that: A thread groove is provided on the outer peripheral wall of the probe rod (2); a rotating ring (61) is rotatably arranged on the support frame (5) and sleeved on the outer periphery of the probe rod (2); an inner ring of the rotating ring (61) is threadedly matched with the outer wall of the probe rod (2); a pull-out groove (62) is provided on the side wall of the probe rod (2) along the extension direction of the probe rod (2); the probe rod (2) passes through the support frame (5) and is slidably matched with the support frame (5); the support frame (5) is key-connected with the pull-out groove (62) on the probe rod (2).

8. The ABS coagulation unit extruder blanking square tube cleaning device according to claim 7 is characterized in that: A deceleration unit (63) is arranged on one side of the rotating ring (61), and a second handle (64) is arranged on the deceleration unit (63). When the second handle (64) rotates, the rotating ring (61) is driven to rotate through the deceleration unit (63).

9. The ABS coagulation unit extruder blanking square tube cleaning device according to claim 6, characterized in that: A suction cup (51) is arranged on the support frame (5), and before the pulling unit (6) pulls the probe rod (2) out of the square tube (1), the suction cup (51) is attached to the end of the square tube (1).

10. The ABS coagulation unit extruder feeding square tube cleaning device according to claim 6, characterized in that: A positioning unit (7) is arranged on the support frame (5), and the positioning unit (7) comprises a positioning sleeve (71). The positioning sleeve (71) is a square tubular structure, and the positioning sleeve (71) is completely matched with the inner cross section of the square tube (1).

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