A nodular cast iron pipe sand cleaning device

Abstract

The present invention discloses a sand cleaning device for ductile iron pipes. The sand cleaning device for ductile iron pipes includes a first support frame, a lead screw arranged on the first support frame, a fan mechanism sleeved on the lead screw, and a scraping mechanism arranged on the fan mechanism; such that the fan mechanism can drive the scraping mechanism to rotate along the circumferential direction of the socket of the cast iron pipe; a brush mechanism is also sleeved on the lead screw, such that the brush mechanism slides back and forth on the lead screw. The problem in the prior art that in the pipeline sand blowing device, the residual sand accumulation inside the socket of the ductile iron pipe fails to be cleaned up, thus affecting production is solved.

Description

Technical Field

[0001] The present invention relates to production equipment for ductile iron pipes, and specifically, to a sand cleaning device for ductile iron pipes. Background Art

[0002] In the sand mold casting method, some sand residues will remain in the manufactured cast iron pipes. If not cleaned and directly entering the annealing furnace, the sand will fall into the furnace and accumulate over time, requiring production suspension for cleaning, thus affecting production. For example, the Chinese patent with the patent number CN202021381584.9 provides a pipeline sand blowing device, which includes a pipeline main body, including a support part, a sand blowing cover, a gas supply part, a first dust collection part, and a second dust collection part. The support part is used to support the ductile iron pipe; the sand blowing cover is arranged on one side of the support part, can move along the axial direction of the ductile iron pipe, and covers one end of the ductile iron pipe. An air supply pipe is arranged in the sand blowing cover, and the air supply pipe is used to blow the ductile iron pipe. A dust outlet is arranged at the lower part of the sand blowing cover; the gas supply part is connected to the air supply pipe; the first dust collection part is opposite to the dust outlet and is used to collect the sand falling into the sand blowing cover; the second dust collection part is arranged on the other side of the support part and is used to collect the sand flowing out from the other end of the ductile iron pipe. Such a sand blowing device in the above-mentioned prior art can clean the remaining sand inside the ductile iron pipe through the sand blowing device, but the remaining sand inside the socket of the ductile iron pipe cannot be cleaned thoroughly, thus affecting production. Summary of the Invention

[0003] The purpose of the present invention is to provide a sand cleaning device for ductile iron pipes, which solves the problem that the accumulation of remaining sand inside the socket of the ductile iron pipe affects production.

[0004] To achieve the above purpose, the present invention provides a sand cleaning device for ductile iron pipes, characterized in that the sand cleaning device for ductile iron pipes includes a first support frame, a lead screw arranged on the first support frame, a fan mechanism sleeved on the lead screw, and a scraping mechanism arranged on the fan mechanism; so that the fan mechanism can drive the scraping mechanism to rotate along the circumferential direction of the socket of the cast iron pipe; a brush mechanism is also sleeved on the lead screw, so that the brush mechanism slides back and forth on the lead screw.

[0005] Preferably, first and second limit plates are arranged at both ends of the lead screw, and a round shaft is arranged on the second limit plate; a first guide rod is arranged on the limit plate, and the first guide rod is connected to the first support frame; a round hole is arranged in the round shaft, and a second guide rod is inserted into the round hole, and the second guide rod is connected to the second support frame.

[0006] Preferably, the fan mechanism includes a first connecting rod connecting the bushing, a first circular shell connecting the first connecting rod, and a guide rod; a key is arranged inside the bushing, a groove is arranged on the circular shaft, and the key matches the groove; guide grooves are arranged on both sides of the first circular shell; one end of the guide rod is connected to the bushing, and the other end at least partially penetrates through the guide groove.

[0007] Preferably, the scraper mechanism includes a scraper with a through hole, a material guiding plate arranged on the scraper, a support plate with a through hole, an auxiliary wheel arranged on the support plate, and a second connecting rod; a chamfer is formed on the surface of the scraper; the through hole penetrates through the scraper and the support plate; the front end of the support plate is connected to the scraper, and the rear end is connected to the second connecting rod; one end of the second connecting rod is connected to the support plate, and the other end is connected to the fan mechanism.

[0008] Preferably, the brush mechanism includes a lead screw nut sliding on a lead screw, a third connecting rod connecting the lead screw nut, a second circular shell connecting the third connecting rod, and a detachable brush sleeved on the second circular shell;

[0009] Preferably, fabric fan blades are arranged between the first connecting rods on the left and right sides of the bushing and the middle of the guide rod.

[0010] Preferably, a sphere is arranged at one end of the guide rod, and a spherical groove body is arranged on the bushing, so that the sphere is embedded in the spherical groove body.

[0011] The present invention discloses a nodular cast iron pipe sand cleaning device, and the nodular cast iron pipe sand cleaning device includes a first support frame, a lead screw arranged on the first support frame, a fan mechanism sleeved on the lead screw, and a scraper mechanism arranged on the fan mechanism.

[0012] In the initial state, the lead screw is sequentially sleeved with the brush mechanism and the fan mechanism, the lead screw is placed at the center of the nodular cast iron pipe, and the distances between the fan mechanism and the scraper mechanism and the socket of the nodular cast iron pipe are adjusted to facilitate the scraper mechanism to fit the socket of the nodular cast iron pipe; by using the air blown from the socket of the nodular cast iron pipe towards the spigot of the nodular cast iron pipe, the fan mechanism rotates forward, and while the fan mechanism rotates forward, it drives the scraper mechanism to rotate forward along the circumferential direction of the socket of the nodular cast iron pipe, thereby discharging the remaining sand inside the socket of the nodular cast iron pipe.

[0013] Through the connection between the key on the fan mechanism and the groove on the lead screw, while the fan mechanism rotates forward, it drives the lead screw to rotate forward, so that the brush mechanism sleeved on the lead screw can smoothly slide forward on the lead screw, thereby removing the remaining sand inside the spigot of the pipe; to prevent the brush mechanism on the lead screw from falling off, baffles are arranged at both ends of the lead screw.

[0014] Since the direction of the jet air blows from the socket of the ductile iron pipe towards the spigot of the ductile iron pipe, the rotation direction of the fan mechanism is always positive; an adjustable fan blade is provided on the fan mechanism to adjust the direction of the fan blade, so that the angle of the fan blade changes, thereby realizing the reverse rotation of the fan mechanism; when the fan mechanism rotates in reverse, the fan mechanism can drive the brush mechanism on the lead screw to slide in reverse.

[0015] Compared with the prior art, the sand cleaning device for ductile iron pipes provided by the present invention uses the jet air outside the ductile iron as the main driving force to realize the forward rotation of the sand cleaning device for ductile iron pipes, and then realizes the reverse rotation by adjusting the angle of the fan blade, so that the sand cleaning device for ductile iron pipes can discharge the remaining sand inside the socket of the ductile iron pipe and clean the remaining sand on the inner wall of the spigot, thereby improving production.

[0016] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific implementation, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the drawings:

[0018] Figure 1 is a structural diagram of the sand cleaning device for ductile iron pipes provided by the present invention from the first perspective;

[0019] Figure 2 is a structural diagram of the lead screw in the sand cleaning device for ductile iron pipes provided by the present invention;

[0020] Figure 3 is a structural diagram of the fan mechanism in the sand cleaning device for ductile iron pipes provided by the present invention;

[0021] Figure 4 is a structural diagram of the first perspective of the scraper mechanism in the sand cleaning device for ductile iron pipes provided by the present invention;

[0022] Figure 5 is a structural diagram of the second perspective of the scraper mechanism in the sand cleaning device for ductile iron pipes provided by the present invention;

[0023] Figure 6 is a structural diagram of the brush mechanism in the sand cleaning device for ductile iron pipes provided by the present invention.

[0024] DESCRIPTION OF THE REFERENCE NUMERALS

[0025] 1 - First support frame; 2 - Lead screw; 3 - Fan mechanism; 4 - Scraper mechanism; 5 - Socket of ductile iron pipe; 6 - Brush mechanism; 7 - Second support frame; 201 - First limit plate; 202 - Second limit plate; 203 - Round shaft; 204 - First guide rod; 205 - Round hole; 206 - Second guide rod; 207 - Groove; 301 - Bush; 302 - First connecting rod; 303 - First round shell; 304 - Guide rod; 305 - Key; 306 - Guide groove; 307 - Cloth fan blade; 308 - Sphere; 309 - Spherical groove body; 401 - Through port; 402 - Scraper; 403 - Material guide plate; 404 - Support plate; 405 - Auxiliary wheel; 406 - Second connecting rod; 407 - Chamfer; 601 - Lead screw nut; 602 - Third connecting rod; 603 - Second round shell; 604 - Brush. Detailed implementation manners

[0026] The following will describe in detail the detailed implementation manners of the present invention with reference to the accompanying drawings. It should be understood that the detailed implementation manners described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0027] In the present invention, unless otherwise stated, the orientation terms such as "upper, lower, left, right", "inner, outer", "far, near" refer to the directions with reference to the accompanying drawings.

[0028] As Figure 1-6 shown: The present invention discloses a sand cleaning device for ductile iron pipes. The sand cleaning device for ductile iron pipes includes a first support frame 1, a lead screw 2 arranged on the first support frame 1, a fan mechanism 3 sleeved on the lead screw 2, and a scraper mechanism 4 arranged on the fan mechanism 3.

[0029] In the initial state, the lead screw 2 sequentially sleeved with the fan mechanism 3 and the brush mechanism 6 is placed at the center of the ductile iron pipe, and the distances between the fan mechanism 3 and the scraper mechanism 4 and the socket 5 of the ductile iron pipe are adjusted to facilitate the scraper mechanism 4 to fit the socket 5 of the ductile iron pipe; by using the air blown from the socket 5 of the ductile iron pipe to the spigot of the ductile iron pipe, the fan mechanism 3 rotates forward, and while the fan mechanism 3 rotates forward, it drives the scraper mechanism 4 to rotate forward along the circumferential direction of the socket 5 of the ductile iron pipe, thereby discharging the remaining sand inside the socket 5 of the ductile iron pipe.

[0030] The fan mechanism 3 is connected to the groove 207 on the lead screw through the key 305 on the fan mechanism 3. While the fan mechanism 3 rotates forward, it drives the lead screw 2 to rotate forward, so that the brush mechanism 6 sleeved on the lead screw 2 can smoothly slide forward on the lead screw 2, thereby removing the remaining sand inside the spigot 5 of the pipe; in order to prevent the brush mechanism 6 on the lead screw 2 from falling off, baffles are provided at both ends of the lead screw.

[0031] Since the direction of the blowing air is from the socket 5 of the ductile iron pipe towards the spigot of the ductile iron pipe, the rotation direction of the fan mechanism 3 is always positive; an adjustable fan blade 307 is provided on the fan mechanism 3, and the direction of the fan blade 307 is adjusted to change the angle of the fan blade 307, thereby realizing the reverse rotation of the fan mechanism 3; when the fan mechanism 3 rotates in the reverse direction, the fan mechanism 3 can drive the brush mechanism 6 on the lead screw 2 to slide in the reverse direction.

[0032] Compared with the prior art, the sand cleaning device for ductile iron pipes provided by the present invention uses the blowing air outside the ductile iron as the main driving force to realize the forward rotation of the sand cleaning device for ductile iron pipes, and then realizes the reverse rotation by adjusting the angle of the fan blade, so that the sand cleaning device for ductile iron pipes can discharge the remaining sand inside the socket of the ductile iron pipe and clean the remaining sand on the inner wall of the spigot, thereby improving production.

[0033] In a preferred embodiment of the present invention, in order to prevent the brush mechanism 6 from falling off, a first limiting plate 201 and a second limiting plate 202 are provided at both ends of the lead screw 2, and a round shaft 203 is provided on the second limiting plate 202; a first guide rod 204 is provided on the limiting plate 201, and the first guide rod 204 is connected to the first support frame 1; a circular hole 205 is provided in the round shaft 203, and a second guide rod 206 is inserted into the circular hole 205, and the second guide rod 206 is connected to the second support frame 7.

[0034] In a preferred embodiment of the present invention, the fan mechanism 3 includes a bushing 301, a first connecting rod 302 connecting the bushing 301, a first circular shell 303 connecting the first connecting rod 302, and a guide rod 304; in order to facilitate the fan mechanism 3 to drive the lead screw 2 to rotate, a key 305 is provided in the bushing 301, a groove 207 is provided on the round shaft 203, and the key 305 matches the groove 207; in order to facilitate adjusting the rotation directions of the fan mechanism 3 and the brush mechanism 6, guide grooves 306 are provided on both sides of the first circular shell 303; one end of the guide rod 304 is connected to the bushing 301, and the other end at least partially penetrates through the guide grooves 306; in order to prevent the guide rod 304 from being blown to the same place, the guide grooves 306 are designed as Figure 3 shown.

[0035] In a preferred embodiment of the present invention, the scraping mechanism 4 includes a scraper 402 having a through hole 401, a material guiding plate 403 provided on the scraper 402, a support plate 404 having a through hole 401, an auxiliary wheel 405 provided on the support plate 404, and a second connecting rod 406; a chamfer 407 is formed on the surface of the scraper 402 so that the scraper 402 can better contact the pipe socket; in order to prevent the scraping mechanism 4 from interfering with the cast iron pipe socket, the through hole 401 penetrates through the scraper 402 and the support plate 404; the front end of the support plate 403 is connected to the scraper 402, and the rear end is connected to the second connecting rod 406; one end of the second connecting rod 406 is connected to the support plate 404, and the other end is connected to the fan mechanism 3.

[0036] In a preferred embodiment of the present invention, in order to facilitate the smooth sliding of the brush mechanism 6 on the lead screw 2, the brush mechanism 6 includes a lead screw nut 601 slidably provided on the lead screw 2, a third connecting rod 602 connected to the lead screw nut 601, a second circular shell 603 connected to the third connecting rod 602, and a detachable brush 604 sleeved on the second circular shell 603.

[0037] In a preferred embodiment of the present invention, in order to realize the rotation of the fan mechanism 3, a cloth fan blade 307 is provided between the first connecting rods 302 on the left and right sides of the bushing 301 and the middle of the guide rod 304.

[0038] In a preferred embodiment of the present invention, in order to enable the guide rod 304 to rotate, a sphere 308 is provided at one end of the guide rod 304, and a spherical groove 309 is provided on the bushing 301 so that the sphere 308 is embedded in the spherical groove 309.

[0039] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0040] In addition, it should be noted that, in the various specific technical features described in the above specific embodiments, they can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present invention will not separately describe various possible combination methods.

[0041] In addition, any combination can be made between various different embodiments of the present invention as long as it does not violate the idea of the present invention, and it should also be regarded as the content disclosed by the present invention.

Claims

1. A nodular cast iron pipe sand cleaning device, characterized in that The nodular cast iron pipe sand cleaning device includes a first support frame (1), a lead screw (2) arranged on the first support frame (1), a fan mechanism (3) sleeved on the lead screw (2), and a scraping mechanism (4) arranged on the fan mechanism (3); The fan mechanism (3) can drive the scraping mechanism (4) to rotate along the circumferential direction of the socket (5) of the cast iron pipe; A brush mechanism (6) is also sleeved on the lead screw (2), so that the brush mechanism (6) slides back and forth on the lead screw (2); first limit plates (201) and second limit plates (202) are arranged at both ends of the lead screw (2), and a round shaft (203) is arranged on the second limit plate (202); A first guide rod (204) is arranged on the first limit plate (201), and the first guide rod (204) is connected to the first support frame (1); A round hole (205) is arranged in the round shaft (203), a second guide rod (206) is inserted into the round hole (205), and the second guide rod (206) is connected to a second support frame (7); the fan mechanism (3) includes a bushing (301), a first connecting rod (302) connected to the bushing (301), a first round shell (303) connected to the first connecting rod (302), and a guide rod (304); A key (305) is arranged in the bushing (301), a groove (207) is arranged on the round shaft (203), and the key (305) is matched with the groove (207); Guide grooves (306) are arranged on both sides of the first round shell (303); one end of the guide rod (304) is connected to the bushing (301), and the other end at least partially penetrates through the guide grooves (306); a cloth fan blade (307) is arranged between the first connecting rods (302) on the left and right sides of the bushing (301) and the middle of the guide rod (304); a sphere (308) is arranged at one end of the guide rod (304), and a spherical groove body (309) is arranged on the bushing (301), so that the sphere (308) is embedded in the spherical groove body (309).

2. The nodular cast iron pipe sand cleaning device according to claim 1, wherein, The scraping mechanism (4) includes a scraper (402) with a through port (401), a material guiding plate (403) arranged on the scraper (402), a support plate (404) with a through port (401), an auxiliary wheel (405) arranged on the support plate (404), and a second connecting rod (406); A chamfer (407) is formed on the surface of the scraper (402); The through port (401) penetrates through the scraper (402) and the support plate (404); The front end of the support plate (404) is connected to the scraper (402), and the rear end is connected to the second connecting rod (406); One end of the second connecting rod (406) is connected to the support plate (404), and the other end is connected to the fan mechanism (3).

3. A shot blasting device for ductile iron pipes according to claim 2, characterized in that, The brush mechanism (6) includes a lead screw nut (601) slidably disposed on a lead screw (2), a third connecting rod (602) connecting the lead screw nut (601), a second circular shell (603) connecting the third connecting rod (602), and a detachable brush (604) sleeved on the second circular shell (603).

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