Residual sand recovery device for sand spreader

Abstract

The invention discloses a residual sand recovery device for a sand spreader, which comprises a frame body, a sand spreading mechanism, a feeding mechanism and a recovery mechanism, and is characterized in that the sand spreading mechanism is arranged in the frame body and is used for spreading sand on the surface of a waterproof belt conveyed between a first carrier roller and a second carrier roller; the feeding mechanism is arranged on one side of the frame body, a discharging opening of the feeding mechanism communicates with the sand scattering mechanism, and the feeding mechanism is used for conveying fine sand into the sand scattering mechanism; the recycling mechanism comprises a conveying part and a sand guide plate, the conveying part is arranged in the frame body and located on one side of the second carrier roller, a conveying channel is formed in the conveying part and communicates with a feeding port of the feeding mechanism, the sand guide plate is connected with the conveying part, and one side of the sand guide plate makes contact with the roller surface of the second carrier roller; the other side of the sand guide plate extends to the position above the conveying channel, and fine sand which is not adhered to the waterproof belt can slide into the conveying channel through the sand guide plate. The problems that in the prior art, unbonded fine sand on a waterproof belt is inconvenient to collect, and the fine sand is recycled are solved.

Description

Technical Field

[0001] The invention relates to the technical field of sand spreaders, and in particular to a residual sand recovery device for a sand spreader. Background Art

[0002] Waterproof tape is a material used to seal and prevent moisture penetration, and is widely used in building, construction, pipeline connection, roof waterproofing, underground engineering and other fields. It is usually made of materials such as rubber, polyurethane, asphalt or special plastics, has good elasticity and adhesion, and can form an effective waterproof barrier on various surfaces.

[0003] Sprinkling sand on waterproof tape is a special construction process, which is usually applied to the surface of self-adhesive or hot-melt waterproof materials. This process is mainly used to increase the friction on the surface of the waterproof tape to prevent sliding, especially in humid environments or when used on vertical surfaces. It can effectively avoid the displacement of the waterproof tape and ensure its long-term and stable function. In the production process, there will be some fine sand that is not bonded to the colloid on the surface of the waterproof tape. If the excess fine sand is not cleaned up and recycled, it will cause a waste of fine sand, increase the production cost of the waterproof tape, and be unfavorable for the subsequent winding of the waterproof tape. Summary of the invention

[0004] The purpose of the present invention is to overcome the above technical deficiencies and provide a residual sand recovery device for a sand spreader to solve the problem in the prior art that the fine sand that is not adhered to the waterproof belt is inconvenient to collect and the fine sand is recycled.

[0005] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: The present invention provides a residual sand recovery device for a sand spreader, comprising a frame, a sand spreading mechanism, a feeding mechanism and a recovery mechanism, wherein a first roller, a second roller and a third roller are rotatably provided in the frame, the third roller is provided between the first roller and the second roller, and the third roller is located above one side of the first roller and the second roller, and the waterproof belt can be transmitted by passing around the first roller, the second roller and the third roller in sequence; the sand spreading mechanism is provided in the frame, and is used for spreading sand on the surface of the waterproof belt transmitted between the first roller and the second roller; the feeding mechanism is provided On one side of the frame, the discharge port of the feeding mechanism is connected with the sand spreading mechanism, which is used to transport the fine sand into the sand spreading mechanism; the recovery mechanism includes a conveying member and a sand guide plate, the conveying member is arranged in the frame and is located on one side of the second roller, a conveying channel is provided in the conveying member, and the conveying channel is connected with the feed port of the feeding mechanism, the sand guide plate is connected with the conveying member, and one side of the sand guide plate is in contact with the roller surface of the second roller, and the other side of the sand guide plate extends to the top of the conveying channel, and the fine sand that is not adhered to the waterproof belt can slide into the conveying channel through the sand guide plate. In some embodiments, the sand-spreading mechanism includes a cylinder, an adjusting block, a support plate and a telescopic member. The cylinder is movably connected to the frame. A sand-spreading port is provided at the bottom of the cylinder, and the inner diameter of the lower end of the cylinder is gradually reduced toward the sand-spreading port. The support plate is fixedly arranged inside the lower end of the cylinder. Channels are formed on both the support plate and the opposite side walls of the cylinder. The telescopic member is fixedly arranged on the support plate and the output end is fixedly connected to the adjusting block. The adjusting block is driven to rise and fall by the telescopic member to adjust the gap width between the adjusting block and the opposite side walls of the cylinder.

[0006] In some embodiments, at least one vibrator is fixedly mounted on the cylinder.

[0007] In some embodiments, the feeding mechanism includes a vertical mounting tube, a horizontal mounting tube and a transport member, one end of the horizontal mounting tube is fixedly connected to one end of the vertical mounting tube, the transport member is arranged in the vertical mounting tube and the horizontal mounting tube, the other end of the vertical mounting tube is provided with the feed port, the other end of the horizontal mounting tube is provided with a discharge port, the discharge port is connected to the cylinder, and the transport member is used to transport the fine sand entering the vertical mounting tube through the feed port to the feed port.

[0008] In some embodiments, the transport member includes a head roller, a bottom roller, a redirecting roller, a supporting roller, a conveyor belt, a bucket and a driving unit. The head roller is rotatably arranged at the other end of the horizontal mounting tube, the bottom roller is rotatably arranged at the other end of the vertical mounting tube, the redirecting roller is rotatably arranged at one end of the vertical mounting tube, the supporting roller is rotatably arranged at one end of the horizontal mounting tube, the conveyor belt is connected between the bottom roller and the head roller, a plurality of the buckets are fixedly arranged on the conveyor belt at intervals, the driving unit is connected to one end of the bottom roller, the redirecting roller and the supporting roller are supported at the middle part of the conveyor belt to convert the fine sand transported by the conveyor belt in the vertical direction into the fine sand transported in the horizontal direction.

[0009] In some embodiments, an arc-shaped material receiving trough is provided in the vertical installation tube and below the bottom roller, and when the conveyor belt rotates, each of the buckets can move out of / into the arc-shaped material receiving trough.

[0010] In some embodiments, a cleaning mechanism is also included, which includes a brush roller rotatably mounted on the frame, the brush roller is located above the conveying channel, and the brush roller is in contact with the surface of the waterproof belt transmitted between the second roller and the third roller, and the brush roller is used to brush off the fine sand that is not adhered to the surface of the waterproof belt.

[0011] In some embodiments, a fourth roller is rotatably provided in the frame, and the waterproof belt passes around the fourth roller after passing around the third roller. A drying mechanism is also provided in the frame, and the drying mechanism includes a cover body, a blower and a heating cell. The cover body is connected to the frame and is located above the waterproof belt transmitted between the third roller and the fourth roller. A plurality of air diffusion holes are provided on the side of the cover body corresponding to the waterproof belt. The blower is connected to the cover body, and the heating cell is fixed in the cover body. The blower is used to transport airflow into the cover body, and the heating cell is used to heat the airflow. In some embodiments, the telescopic member is an electric push rod, a pneumatic cylinder or a hydraulic cylinder.

[0012] In some embodiments, the conveying member is a belt conveyor.

[0013] Compared with the prior art, the present invention provides a residual sand recovery device for a sand spreader, which spreads sand on the surface of the waterproof belt transmitted between the first roller and the second roller through a sand spreading mechanism, the feeding mechanism is arranged on one side of the frame, the discharge port of the feeding mechanism is connected with the sand spreading mechanism, the feeding mechanism is used to transport fine sand into the sand spreading mechanism, the conveying member is arranged in the frame and located on one side of the second roller, a conveying channel is provided in the conveying member, and the conveying channel is connected with the feeding port of the feeding mechanism, the sand guide plate is connected with the conveying member, and one side of the sand guide plate is in contact with the roller surface of the second roller, and the other side of the sand guide plate extends to the top of the conveying channel, the fine sand that is not adhered to the waterproof belt can slide into the conveying channel through the sand guide plate under the action of its own gravity, and then the fine sand is transported to the feeding port of the feeding mechanism through the conveying member, which effectively ensures that the fine sand that is not adhered to the waterproof belt is recovered and recycled. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a residual sand recovery device for a sand spreader provided by an embodiment of the present invention; Figure 2 It is a partial structural schematic diagram of a residual sand recovery device for a sand spreader provided by an embodiment of the present invention; Figure 3 yes Figure 2 A magnified schematic diagram of the middle A area; Figure 4 is a schematic diagram of the internal structure of a sand spreading mechanism provided by an embodiment of the present invention; Figure 5 is a schematic diagram of the internal structure of a drying unit provided in an embodiment of the present invention; Figure 6 It is a partial structural schematic diagram of a feeding mechanism provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0016] In order to solve the technical problems in the prior art that the unadhered fine sand on the waterproof belt is inconvenient to collect and recycle the fine sand, the present invention provides a residual sand recovery device for a sand spreader, which can collect and recycle the unadhered fine sand on the waterproof belt.

[0017] See also Figure 1-Figure 6 , Figure 1-Figure 6 The invention relates to a residual sand recovery device for a sand spreader in one embodiment of the present invention, comprising a frame 1, a sand spreading mechanism 2, a feeding mechanism 3 and a recovery mechanism 4, wherein a first roller 11, a second roller 12 and a third roller 13 are rotatably provided in the frame 1, the third roller 13 is provided between the first roller 11 and the second roller 12, and the third roller 13 is located above one side of the first roller 11 and the second roller 12, and the waterproof belt can be transmitted by passing around the first roller 11, the second roller 12 and the third roller 13 in sequence; the sand spreading mechanism 2 is provided in the frame 1, and is used to spread sand on the surface of the waterproof belt transmitted between the first roller 11 and the second roller 12; the feeding mechanism 3 and the recovery mechanism 4 are provided in the frame 1, and the first roller 11, the second roller 12 and the third roller 13 are provided in the frame 1, and the second roller 12 is provided with a feeding mechanism 3 and a recovery mechanism 4; the first roller 11, the second roller 12 and the third roller 13 are provided in the frame 1, and ... second roller 12 and the third roller 13 are provided in the frame 1, and the second roller 12 and the third roller 13 are provided in the frame 1, and the second roller 12 and the third roller 13 are provided in the frame 1, and the second roller 12 and the third roller 13 are provided in the frame 1, and the The structure 3 is arranged on one side of the frame 1, and the discharge port of the feeding mechanism 3 is connected with the sand spreading mechanism 2, which is used to transport the fine sand into the sand spreading mechanism 2; the recovery mechanism 4 includes a conveying member 41 and a sand guide plate 42, the conveying member 41 is arranged in the frame 1 and is located on one side of the second roller 12, a conveying channel is provided in the conveying member 41, and the conveying channel is connected with the feed port 311 of the feeding mechanism 3, the sand guide plate 42 is connected with the conveying member 41, and one side of the sand guide plate 42 is in contact with the roller surface of the second roller 12, and the other side of the sand guide plate 42 extends to the top of the conveying channel, and the fine sand that is not adhered to the waterproof belt can slide into the conveying channel through the sand guide plate 42. It should be noted that one end of the first roller 11, the second roller 12 and the third roller 13 are fixedly connected to a servo motor, which drives the first roller 11, the second roller 12 and the third roller 13 to rotate around their own axes, wherein the axes of the first roller 11, the second roller 12 and the third roller 13 are parallel to each other.

[0018] In this specific embodiment, the sand-spreading mechanism 2 includes a cylinder 21, an adjusting block 22, a support plate 23 and a telescopic member 24. The cylinder 21 is movably connected to the frame 1. A sand-spreading port is provided at the bottom of the cylinder 21, and the inner diameter of the lower end of the cylinder 21 is gradually reduced toward the sand-spreading port. The support plate 23 is fixedly arranged inside the lower end of the cylinder 21. Channels are formed on the opposite side walls of the support plate 23 and the cylinder 21. The telescopic member 24 is fixedly arranged on the support plate 23 and the output end is fixedly connected to the adjusting block 22. The adjusting block 22 is driven to rise and fall by the telescopic member 24 to adjust the gap width between the adjusting block 22 and the opposite side walls of the cylinder 21.

[0019] It should be noted that the cross-section of the adjusting block 22 is triangular, and the telescopic member 24 is an electric cylinder. Of course, in other embodiments, the telescopic member 24 can also be a pneumatic cylinder or a hydraulic cylinder; when the telescopic member 24 drives the adjusting block 22 to rise, the width of the gap between the adjusting block 22 and the two opposite side walls of the cylinder 21 can be increased, wherein the fine sand flowing out from the two gaps can be used to sprinkle sand on the waterproof belt twice, which can ensure that the fine sand is evenly adhered to the surface of the waterproof belt.

[0020] On the basis of the above scheme, in order to prevent fine sand from arching at the sand scattering port of the cylinder 21 and causing blockage of the sand scattering port, specifically, at least one exciter 25 is fixedly provided on the cylinder 21, and the exciter 25 can drive the cylinder 21 to vibrate. It should be noted that the cylinder 21 is movably connected to the frame 1 through a plurality of elastic parts.

[0021] In this specific embodiment, the feeding mechanism 3 includes a vertical mounting tube 31, a horizontal mounting tube 32 and a transport member 33. One end of the horizontal mounting tube 32 is fixedly connected to one end of the vertical mounting tube 31. The transport member 33 is arranged in the vertical mounting tube 31 and the horizontal mounting tube 32. The other end of the vertical mounting tube 31 is provided with the feed port 311. The other end of the horizontal mounting tube 32 is provided with a discharge port 321. The discharge port 321 is connected to the cylinder 21. The transport member 33 is used to transport the fine sand entering the vertical mounting tube 31 through the feed port 311 to the feed port 311.

[0022] Specifically, the transport member 33 includes a head roller 331, a bottom roller 332, a redirecting roller 333, a supporting roller 334, a conveyor belt 335, a bucket 336 and a driving unit 337. The head roller 331 is rotatably arranged at the other end of the horizontal mounting tube 32, the bottom roller 332 is rotatably arranged at the other end of the vertical mounting tube 31, the redirecting roller 333 is rotatably arranged at one end of the vertical mounting tube 31, the supporting roller 334 is rotatably arranged at one end of the horizontal mounting tube 32, the conveyor belt 335 is connected between the bottom roller 332 and the head roller 331, and a plurality of the buckets 336 are fixedly arranged on the conveyor belt 335 at intervals. The driving unit 337 is connected to one end of the bottom roller 332, and the redirecting roller 333 and the supporting roller 334 are supported at the middle part of the conveyor belt 335 to convert the fine sand transported by the conveyor belt 335 in the vertical direction into the fine sand transported in the horizontal direction.

[0023] It should be noted that the driving part 337 is a reduction motor fixed on the vertical mounting tube 31 , and the reduction motor drives the bottom roller 332 to rotate, thereby driving the conveyor belt 335 to rotate to transport the fine sand.

[0024] On the basis of the above scheme, in order to be able to transport the fine sand that falls into the bottom of the vertical installation pipe 31, specifically, an arc-shaped material receiving trough 338 is provided in the vertical installation pipe 31 and below the bottom roller 332. When the fine sand is transported into the vertical installation pipe 31, part of the fine sand directly falls into each bucket 336, and part of the fine sand falls into the arc-shaped material receiving trough 338. When the conveyor belt 335 rotates, each bucket 336 can be moved out of / into the arc-shaped material receiving trough 338.

[0025] It should be noted that the conveying member 41 is a belt conveyor, which is arranged along the width direction of the waterproof belt. The conveying channel is formed on the upper surface of the conveyor belt of the belt conveyor. In addition, the end of the conveying channel extends to the top of the feed port. The belt conveyor can transport fine sand to the feed port to realize the recycling of fine sand.

[0026] On the basis of the above scheme, in order to clean off the fine sand that is not adhered to the surface of the waterproof belt, specifically, a cleaning mechanism 5 is also included, and the cleaning mechanism 5 includes a brush roller 51 rotatably arranged on the frame 1, and the brush roller 51 is located above the conveying channel, and the brush roller 51 is in contact with the surface of the waterproof belt transmitted between the second roller 12 and the third roller 13, and the brush roller 51 is used to brush off the fine sand that is not adhered to the surface of the waterproof belt.

[0027] In other embodiments, the cleaning mechanism 5 further includes a driving motor, which is connected to one end of the brush roller 51 , and the brush roller 51 is driven to rotate around its own axis by the driving motor.

[0028] In addition, in order to facilitate the rapid solidification of the colloid, specifically, a fourth roller 14 is rotatably provided in the frame 1, and the waterproof belt also passes around the fourth roller 14 after passing around the third roller 13. A drying mechanism 6 is also provided in the frame 1, and the drying mechanism 6 includes a cover body 61, a blower 62 and a heating cell 63. The cover body 61 is connected to the frame 1 and is located above the waterproof belt transmitted between the third roller 13 and the fourth roller 14. The cover body 61 is provided with a plurality of air diffusion holes 611 on the side of the waterproof belt corresponding to the waterproof belt. The blower 62 is connected to the cover body 61, and the heating cell 63 is fixed in the cover body 61. The blower 62 is used to transport airflow into the cover body 61, and the heating cell 63 is used to heat the airflow. The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A residual sand recovery device for a sand spreader, comprising a frame, a sand spreading mechanism, a feeding mechanism and a recovery mechanism, wherein a first roller, a second roller and a third roller are rotatably arranged in the frame, the third roller is arranged between the first roller and the second roller, and the third roller is located above one side of the first roller and the second roller, and the waterproof belt can be transmitted by passing around the first roller, the second roller and the third roller in sequence; the sand spreading mechanism is arranged in the frame, and is used to spread sand on the surface of the waterproof belt transmitted between the first roller and the second roller; it is characterized in that The feeding mechanism is arranged on one side of the frame, and the discharge port of the feeding mechanism is connected with the sand spreading mechanism, and is used to transport fine sand into the sand spreading mechanism; The recovery mechanism includes a conveying member and a sand guide plate. The conveying member is arranged in the frame and is located on one side of the second roller. A conveying channel is provided in the conveying member, and the conveying channel is connected with the feed port of the feeding mechanism. The sand guide plate is connected with the conveying member, and one side of the sand guide plate is in contact with the roller surface of the second roller, and the other side of the sand guide plate extends to the top of the conveying channel. The fine sand that is not adhered to the waterproof belt can slide into the conveying channel through the sand guide plate.

2. A residual sand recovery device for a sand spreader according to claim 1, characterized in that: The sand-spreading mechanism includes a cylinder, an adjusting block, a support plate and a telescopic member. The cylinder is movably connected to the frame. A sand-spreading port is provided at the bottom of the cylinder, and the inner diameter of the lower end of the cylinder is gradually reduced toward the sand-spreading port. The support plate is fixedly arranged inside the lower end of the cylinder, and channels are formed on both the support plate and the opposite side walls of the cylinder. The telescopic member is fixedly arranged on the support plate and the output end is fixedly connected to the adjusting block. The adjusting block is driven to rise and fall by the telescopic member to adjust the gap width between the adjusting block and the opposite side walls of the cylinder.

3. A residual sand recovery device for a sand spreader according to claim 2, characterized in that: At least one vibration exciter is fixedly arranged on the cylinder.

4. The residual sand recovery device for a sand spreader according to claim 2, characterized in that: The feeding mechanism includes a vertical mounting tube, a horizontal mounting tube and a transport member, one end of the horizontal mounting tube is fixedly connected to one end of the vertical mounting tube, the transport member is arranged in the vertical mounting tube and the horizontal mounting tube, the other end of the vertical mounting tube is provided with the feed port, the other end of the horizontal mounting tube is provided with a discharge port, the discharge port is connected with the cylinder, and the transport member is used to transport the fine sand entering the vertical mounting tube through the feed port to the feed port.

5. The residual sand recovery device for a sand spreader according to claim 4, characterized in that: The transport member includes a head roller, a bottom roller, a redirecting roller, a supporting roller, a conveyor belt, a bucket and a driving unit. The head roller is rotatably arranged at the other end of the horizontal mounting tube, the bottom roller is rotatably arranged at the other end of the vertical mounting tube, the redirecting roller is rotatably arranged at one end of the vertical mounting tube, the supporting roller is rotatably arranged at one end of the horizontal mounting tube, the conveyor belt is connected between the bottom roller and the head roller, a plurality of the buckets are fixedly arranged on the conveyor belt at intervals, the driving unit is connected to one end of the bottom roller, the redirecting roller and the supporting roller are supported at the middle part of the conveyor belt to convert the fine sand transported by the conveyor belt in the vertical direction into the fine sand transported in the horizontal direction.

6. The residual sand recovery device for a sand spreader according to claim 5, characterized in that: A circular arc material receiving trough is provided in the vertical installation tube and below the bottom roller. When the conveyor belt rotates, each of the buckets can move out of / into the circular arc material receiving trough.

7. The residual sand recovery device for a sand spreader according to claim 1, characterized in that: It also includes a cleaning mechanism, which includes a brush roller rotatably arranged on the frame, the brush roller is located above the conveying channel, and the brush roller comes into contact with the surface of the waterproof belt transmitted between the second roller and the third roller, and the brush roller is used to brush off the fine sand that is not adhered to the surface of the waterproof belt.

8. The residual sand recovery device for a sand spreader according to claim 1, characterized in that: A fourth roller is rotatably provided in the frame, and the waterproof belt passes around the fourth roller after passing around the third roller. A drying mechanism is also provided in the frame, and the drying mechanism includes a cover body, a blower and a heating core. The cover body is connected to the frame and is located above the waterproof belt transmitted between the third roller and the fourth roller. A plurality of air diffusion holes are provided on the side of the cover body corresponding to the waterproof belt. The blower is connected to the cover body, and the heating core is fixed in the cover body. The blower is used to transport airflow into the cover body, and the heating core is used to heat the airflow.

9. The residual sand recovery device for a sand spreader according to claim 2, characterized in that: The telescopic member is an electric push rod, a pneumatic cylinder or a hydraulic cylinder.

10. The residual sand recovery device for a sand spreader according to claim 1, characterized in that: The conveying member is a belt conveyor.

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