Safe and reliable release agent spraying device for shield segment mold

Abstract

The invention relates to the technical field of spraying, and discloses a safe and reliable release agent spraying device for a shield segment mold, which comprises a vehicle plate, rear wheels and front wheels rotationally arranged below the vehicle plate, and a containing cylinder fixedly mounted on the vehicle plate, and the bottom of the containing cylinder communicates with a buffer box through a communicating pipe; an outflow port is formed in the free end of the cache box; a hollow roller matched with the flow-out opening is rotationally arranged below the sweeping board, the hollow roller is in linkage with the front wheel through a linkage mechanism, a plurality of inner grooves are formed in the peripheral face of the hollow roller in the circumferential direction at equal intervals, a blocking face is formed between every two inner grooves, and the blocking faces abut against and seal the flow-out opening. On the basis of saving the loss of the release agent in the painting process, the operation procedures can be reduced, the energy consumption of operators can be reduced, and the painting effects of different operators are basically the same more easily.

Description

Technical Field

[0001] The invention relates to the technical field of spraying, and in particular to a safe and reliable release agent spraying device for a shield segment mould. Background Art

[0002] The shield segment is the main assembly component of shield construction and the innermost barrier of the tunnel. It is responsible for resisting soil pressure, groundwater pressure and some special loads. The production of shield segments mainly uses segment molds to seal and pour concrete before forming.

[0003] In order to facilitate demoulding, it is necessary to spray a demoulding agent on the inside of the mold before feeding. In order to improve work efficiency, a spraying device is usually used in the prior art to replace the traditional manual brush holding and demoulding agent brushing. For example, the Chinese invention patent with application number CN202210702114.5, publication (announcement) number CN114986675B, and name "A quick demoulding agent brushing device" uses motor shaft one to drive shaft one and stirring rod, stirring blade, and auxiliary stirring member to rotate synchronously to stir the demoulding agent to prevent the demoulding agent from settling. Motor shaft two drives the rotating disk to rotate idly. When the position of the brush head needs to be adjusted to facilitate replacement and maintenance of the brush head, the rotating disk can be meshed with the gear through the snap-on pawl, thereby driving the brush head to rotate; through the design of the blocking component, the upper slider and the lower slider can be driven to move in opposite directions at the same time, one is stored and the other is extended, so that the two actions of blocking and diversion can be seamlessly connected, while avoiding the loss of demoulding agent.

[0004] Although the quick release agent application device provided by the above-mentioned invention patent can improve work efficiency and save release agent loss to a certain extent, the applicant has found that it has at least the following disadvantages during actual operation: since the design of the sealing component is additionally added to reduce the loss of the release agent, the release agent is discharged in a certain amount by moving the upper slider and the lower slider in opposite directions, and the movement of the upper slider and the lower slider needs to be controlled by pressing the left pull rod. The left pull rod needs to be pressed once each time the release agent is discharged. For large molds, it is necessary to press the left pull rod repeatedly and continuously to complete the application of the entire mold, which undoubtedly increases the operating procedures of the operator, and during the application process, it is necessary to constantly observe the amount of release agent applied to the mold to know when to press the left pull rod, which not only increases the energy consumption of the operator, but also causes different operators to apply different amounts of paint, and the effects are different. Therefore, how to save the loss of release agent during the painting process, reduce the operation steps, reduce the energy consumption of operators, and make it easier for different operators to achieve basically the same painting effect is a technical problem that needs to be solved urgently. Summary of the invention

[0005] The purpose of the present invention is to provide a safe and reliable release agent spraying device for shield segment molds to solve the above-mentioned shortcomings in the prior art.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solution: a safe and reliable shield segment mold release agent spraying device, comprising a vehicle plate, rear wheels and front wheels rotatably arranged under the vehicle plate, and a receiving cylinder fixedly installed on the vehicle plate,

[0007] The bottom of the accommodating cylinder is connected to a cache box via a connecting pipe, and a free end of the cache box is provided with an outflow port;

[0008] A hollow roller cooperating with the outflow port is rotatably arranged below the vehicle plate, the hollow roller is linked with the front wheel through a linkage mechanism, a plurality of inner grooves are equidistantly arranged on the outer circumference of the hollow roller, a blocking surface is formed between each of the plurality of inner grooves, and the blocking surface abuts against and seals the outflow port;

[0009] A brush is also rotatably arranged under the vehicle plate, and a linkage rod is connected between the brush and the eccentric position of the hollow roller;

[0010] When the rear wheel and the front wheel contact the mold, they push the spraying device to drive the front wheel to rotate. The front wheel drives the hollow roller to rotate through the linkage mechanism, driving multiple sealing surfaces to intermittently block the flow outlet so that the demoulding agent intermittently flows out from the flow outlet to the inner wall of the mold. At the same time, the rotation of the hollow roller drives the brush to swing back and forth through the linkage rod to apply the release agent.

[0011] The above-mentioned safe and reliable release agent spraying device for shield segment molds, the hollow roller is rotatably installed under the vehicle plate through a roller shaft, the hollow roller is fixedly connected to the roller shaft, the front wheel is rotatably installed under the vehicle plate through a front wheel shaft, and the front wheel is fixedly connected to the front wheel shaft.

[0012] The above-mentioned safe and reliable release agent spraying device for shield segment molds, the linkage mechanism includes a first gear coaxially fixedly sleeved on the roller shaft and a third gear coaxially fixedly sleeved on the front wheel shaft, the first gear and the third gear are connected by a first chain transmission.

[0013] The above-mentioned safe and reliable release agent spraying device for shield segment molds has a threaded rod that penetrates the car plate and is screwed on the car plate, and a lifting frame is rotatably provided at the bottom of the threaded rod through a bearing, and an adjusting wheel is rotatably provided on the lifting frame, and a guide rod is slidably inserted between the lifting frame and the car plate. The height of the adjusting wheel is adjusted by rotating the threaded rod. When the bottom height of the adjusting wheel is lower than the bottom height of the front wheel, the adjusting wheel and the rear wheel are in contact with the mold and the front wheel is separated from the mold. At this time, when the spraying device is pushed, the hollow roller does not rotate to keep the outflow port in a blocked state.

[0014] The above-mentioned safe and reliable release agent spraying device for shield segment molds, the brush includes a swinging plate and elastic bristles, the elastic bristles are fixedly installed on the bottom of the swinging plate, the swinging plate is rotatably arranged under the vehicle plate, a connecting column is arranged on the swinging plate, a fixed disk is fixedly sleeved on the roller shaft, an eccentric column is fixedly installed at the eccentric position of the fixed disk, one end of the connecting rod is rotatably connected to the connecting column, and the other end is rotatably connected to the eccentric column.

[0015] The above-mentioned safe and reliable release agent spraying device for shield segment molds has an arc rod fixedly installed on the vehicle plate, and the arc rod is slidably plugged with the swing plate. A compression spring is sleeved on the arc rod, and the end of the compression spring abuts against the side of the swing plate so that the elastic force of the compression spring is applied to the swing plate. When one end of the spraying device is tilted so that the front wheel is separated from the mold, the compression spring pushes the swing plate to rotate in the direction away from the hollow roller to drive the connecting rod to pull the hollow roller to rotate to a specific angle. At this time, one of the blocking surfaces blocks the outflow outlet.

[0016] The above-mentioned safe and reliable release agent spraying device for shield segment molds has a cleaning roller rotatably arranged under the vehicle plate. When the hollow roller rotates to a specific angle, the elastic hair contacts the cleaning roller. The cleaning roller is linked to the rear wheel. When the adjusting wheel and the rear wheel contact the mold and the front wheel is separated from the mold, the spraying device is pushed to drive the rear wheel to rotate. The rear wheel drives the cleaning roller to rotate so that the cleaning roller automatically cleans the elastic hair.

[0017] The above-mentioned safe and reliable release agent spraying device for shield segment molds, the rear wheel is rotatably installed under the vehicle plate through the rear wheel axle, the rear wheel is fixedly connected to the rear wheel axle, the cleaning roller is rotatably installed under the vehicle plate through the cleaning roller axle, the cleaning roller is fixedly connected to the cleaning roller axle, a second gear is provided on the coaxial fixing sleeve on the rear wheel axle, a fourth gear is provided on the coaxial fixing sleeve on the cleaning roller axle, and the second gear and the fourth gear are connected by a second chain transmission.

[0018] The above-mentioned safe and reliable shield segment mold release agent spraying device, the front wheel is located between the rear wheel and the adjusting wheel, and the height of the adjusting wheel is adjusted to increase the height of the elastic hair to separate the elastic hair from the mold during the separation of the front wheel from the mold.

[0019] The above-mentioned safe and reliable release agent spraying device for shield segment mold has a flat flow outlet.

[0020] Beneficial effect: In the above technical scheme, the present invention provides a safe and reliable release agent spraying device for shield segment molds. By arranging a buffer box and a hollow roller that cooperate with each other, multiple sealing surfaces on the hollow roller are intermittently sealed and abutted with the outflow port of the buffer box, so that the intermittent outflow of the spray agent can be achieved in the process of pushing the spray device to reduce the loss of the spray agent, and the rotation of the hollow roller is used to drive the brush to swing back and forth through the connecting rod. During the reciprocating swing of the brush, the outflowing spray agent is smeared on the inner wall of the mold. The whole process only requires pushing the spray device to move. There is no need to repeatedly press the left pull rod in the prior art, thereby reducing the operating procedures, and there is no need for the operator to constantly observe the amount of release agent on the mold. The release agent will automatically flow out and stop according to the rotation of the front wheel, thereby saving the operator's energy consumption. At the same time, different operators only need to control the speed of pushing the spray device during operation to achieve basically the same brushing effect, and the operation is easier. Therefore, the present invention can save the loss of release agent during the painting process, reduce the operation process, reduce the energy consumption of operators, and make it easier to achieve basically the same painting effect by different operators, which can effectively solve the shortcomings of the prior art.

[0021] Furthermore, the present invention provides an arc rod and a compression spring, so that no matter what angle the hollow roller is at, as long as the spray device is tilted with the bottom of the rear wheel as a fulcrum and the end away from the rear wheel is lifted to separate the front wheel from the inner wall of the mold, the hollow roller can automatically close the flow outlet, which produces a technical effect that the hollow roller can automatically close the flow outlet without performing other operations and setting an electric structure, and the closing operation is more timely and easy to operate;

[0022] At the same time, the present invention arranges an arc rod and a compression spring so that when the front wheel is separated from the mold or the ground, the brush rotates to a specific angle, and the cleaning roller contacts the elastic bristles. When the spraying device is pushed away from the mold, the spraying device drives the rear wheel to rotate, and the rear wheel drives the cleaning roller to rotate, thereby producing an automatic cleaning effect of the cleaning roller on the elastic bristles. There is no need to clean the elastic bristles separately, and the elastic bristles can be cleaned only when the spraying device is pushed away from the mold, thereby achieving an unexpected technical effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1 A schematic diagram of the three-dimensional structure of a spraying device provided in an embodiment of the present invention;

[0025] Figure 2 The embodiment of the present invention provides Figure 1 A schematic diagram of the enlarged structure of part A;

[0026] Figure 3 A schematic cross-sectional view of a spraying device provided in an embodiment of the present invention;

[0027] Figure 4 A cross-sectional schematic diagram of a brush located at a specific angle when the rear wheel and the front wheel provided in an embodiment of the present invention are in contact with the inner wall of the mold;

[0028] Figure 5 A cross-sectional schematic diagram of a process of applying a release agent when the rear wheel and the front wheel provided by an embodiment of the present invention are in contact with the inner wall of a mold;

[0029] Figure 6 A cross-sectional schematic diagram of an embodiment of the present invention showing that the adjusting wheel and the rear wheel are in contact with the inner wall of the mold and the front wheel is separated from the inner wall of the mold.

[0030] Description of reference numerals:

[0031] 1. Hollow roller; 101. Roller shaft; 102. Inner groove; 103. Sealing surface; 104. Fixed plate; 2. First gear; 3. Rear wheel; 301. Rear wheel shaft; 4. Second gear; 5. Front wheel; 501. Front wheel shaft; 6. Third gear; 7. Adjusting wheel; 8. Threaded rod; 801. Handle; 802. Bearing; 9. Cleaning roller; 901. Cleaning roller shaft; 902. Insert pin; 10. Fourth gear; 11. Elastic hair ; 12. Swinging plate; 1201. Connecting column; 13. First support plate; 14. Second support plate; 15. Linking rod; 16. Eccentric column; 17. Buffer box; 1701. Outlet; 18. Arc rod; 19. Compression spring; 20. Third support plate; 21. Lifting frame; 22. Guide rod; 23. Fourth support plate; 24. Fifth support plate; 25. Accommodating cylinder; 26. Connecting pipe; 27. Car plate; 28. Hard layer; 29. ​​Elastic layer. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] like Figure 1-6 As shown, a safe and reliable shield segment mold release agent spraying device provided by an embodiment of the present invention comprises a vehicle plate 27, a rear wheel 3 and a front wheel 5 rotatably arranged under the vehicle plate 27, and a receiving tube 25 fixedly installed on the vehicle plate 27, wherein a buffer box 17 is connected to the bottom of the receiving tube 25 through a connecting pipe 26, and a flow outlet 1701 is arranged at the free end of the buffer box 17;

[0034] A hollow roller 1 is rotatably provided below the vehicle plate 27 and matches the flow outlet 1701. The hollow roller 1 is linked to the front wheel 5 through a linkage mechanism. A plurality of inner grooves 102 are equidistantly provided on the outer circumference of the hollow roller 1. A blocking surface 103 is formed between each of the plurality of inner grooves 102. The blocking surface 103 abuts against and seals the flow outlet 1701.

[0035] A brush is also rotatably provided below the car plate 27, and a linkage rod 15 is connected between the brush and the eccentric position of the hollow roller 1;

[0036] When the rear wheel 3 and the front wheel 5 contact the mold, the spraying device is pushed to drive the front wheel 5 to rotate. The front wheel 5 drives the hollow roller 1 to rotate through the linkage mechanism, driving multiple blocking surfaces 103 to intermittently block the outflow port 1701 so that the demoulding agent intermittently flows out from the outflow port 1701 to the inner wall of the mold. At the same time, the rotation of the hollow roller 1 drives the brush to swing back and forth through the linkage rod 15 to apply the release agent.

[0037] The spraying device provided in this embodiment is used to promote the spraying of the release agent on the inner wall of the mold. The words related to the direction and position involved in the present invention are relative to the accompanying drawings. Specifically, the fourth support plate 23 and the fifth support plate 24 are fixedly installed at the bottom of the vehicle plate 27, the rear wheel 3 is rotatably set on the fourth support plate 23, and the front wheel 5 is rotatably set on the fifth support plate 24. An armrest is fixedly installed on the vehicle plate 27 for promoting the spraying device. The armrest is located on one side of the rear wheel 3. The accommodating cylinder 25 is fixedly installed on the vehicle plate 27 for containing the release agent. The rear wheel 3 and the front wheel 5 are both two and symmetrically arranged (see the attached drawings). Figure 1As shown in the figure, when the release agent is sprayed, the rear wheel 3 and the front wheel 5 are in contact with the inner wall of the mold at the same time, and the rear wheel 3 and the front wheel 5 can be driven to rotate counterclockwise by pushing the spraying device. The bottom of the accommodating cylinder 25 is fixedly connected and connected with the connecting pipe 26, and the bottom of the connecting pipe 26 is fixedly connected and connected with one end of the buffer box 17, and the other end of the buffer box 17 is the outflow port 1701, and the release agent in the accommodating cylinder 25 flows out from the outflow port 1701 through the connecting pipe 26 and the buffer box 17. A third support plate 20 is also fixedly installed below the vehicle plate 27, and the hollow roller 1 is rotatably set on the third support plate 20. A plurality of inner grooves 102 are equidistantly arranged on the outer peripheral surface of the hollow roller 1 around the axis of the hollow roller 1, and a blocking surface 103 is formed between each of the plurality of inner grooves 102. The blocking surface 103 presses and seals the flow outlet 1701, and the inner grooves 102 are not in contact with the flow outlet 1701. Therefore, when the inner grooves 102 correspond to the flow outlet 1701, the flow outlet 1701 is opened, and the release agent flows out through the flow outlet 1701. When the blocking surface 103 corresponds to the flow outlet 1701, the flow outlet 1701 is closed, and the release agent cannot flow out. Since the hollow roller 1 is linked with the front wheel 5 through a linkage mechanism, when the spraying device is pushed to drive the front wheel 5 to rotate, the front wheel 5 drives the hollow roller 1 to rotate, and the rotation of the hollow roller 1 drives the blocking surface 103 and the inner groove 102 to correspond to the flow outlet 1701 alternately, thereby realizing the intermittent opening and closing of the flow outlet 1701, so that the release agent flows out intermittently to save the loss of the release agent. A linkage rod 15 is connected between the brush and the eccentric position of the hollow roller 1 so that the hollow roller 1 can drive the brush to swing back and forth through the linkage rod 15 when it rotates. When the rear wheel 3 and the front wheel 5 abut against the inner wall of the mold, the brush is always in contact with the inner wall of the mold during the swinging process, thereby realizing the brushing of the release agent.

[0038] Working principle: In the initial state, the blocking surface 103 is tightly in contact with the flow outlet 1701 to block the flow outlet 1701, and the rear wheel 3 and the front wheel 5 are in contact with the inner wall of the mold, and the spraying device is pushed. Based on the friction between the rear wheel 3, the front wheel 5 and the inner wall of the mold, the rear wheel 3 and the front wheel 5 rotate counterclockwise at the same time. The rotation of the front wheel 5 drives the hollow roller 1 to rotate synchronously through the linkage mechanism. When the hollow roller 1 rotates, multiple blocking surfaces 103 intermittently abut against the flow outlet 1701, so that the release agent intermittently flows out of the flow outlet 1701. At the same time, the rotation of the hollow roller 1 drives the brush to swing back and forth through the linkage rod 15. The reciprocating swing of the hollow roller 1 realizes the brushing of the release agent. The whole process only requires pushing the spraying device to move to realize continuous brushing operation. Of course, the spraying device can also be sprayed by pulling. The principle is the same as above and will not be repeated.

[0039] It can be seen that in the present invention, by providing a buffer box 17 and a hollow roller 1 that cooperate with each other, the multiple sealing surfaces 103 on the hollow roller 1 are intermittently sealed and abutted with the outflow port 1701 of the buffer box 17, so that the intermittent outflow of the spray agent can be achieved in the process of pushing the spray device to reduce the loss of the spray agent, and the rotation of the hollow roller 1 is used to drive the brush to swing back and forth through the connecting rod 15. During the reciprocating swing of the brush, the outflowing spray agent is smeared on the inner wall of the mold. The whole process only requires pushing the spray device to move, and there is no need to repeatedly press the left pull rod in the prior art, thereby reducing the operating procedures, and there is no need for the operator to constantly observe the amount of release agent on the mold. The release agent will automatically flow out and stop according to the rotation of the front wheel 5, thereby saving the operator's energy consumption. At the same time, different operators only need to control the speed of pushing the spray device during operation to achieve basically the same brushing effect, and the operation is easier. Therefore, the present invention can save the loss of release agent during the painting process, reduce the operating procedures, reduce the energy consumption of operators, and make it easier to achieve basically the same painting effect by different operators, which can effectively solve the shortcomings of the prior art.

[0040] The hollow roller 1 is rotatably mounted below the vehicle plate 27 via the roller shaft 101, the hollow roller 1 is fixedly connected to the roller shaft 101, the front wheel 5 is rotatably mounted below the vehicle plate 27 via the front wheel shaft 501, and the front wheel 5 is fixedly connected to the front wheel shaft 501. Specifically, the roller shaft 101 is rotatably mounted on the third support plate 20, the hollow roller 1 is coaxial with the roller shaft 101 and fixedly connected, the front wheel shaft 501 is rotatably mounted on the fifth support plate 24, and the front wheel 5 is coaxial with the front wheel shaft 501 and fixedly connected.

[0041] In this embodiment, the linkage mechanism includes a first gear 2 coaxially fixedly sleeved on the roller shaft 101 and a third gear 6 coaxially fixedly sleeved on the front wheel shaft 501, and the first gear 2 and the third gear 6 are connected by a first chain (not shown in the figure). Specifically, the number of the first gear 2 and the third gear 6 are both two and they are connected by the first chain in a one-to-one manner. The two first gears 2 are symmetrically arranged, and the hollow roller 1 is located between the two first gears 2. The two third gears 6 are symmetrically arranged, and the two front wheels 5 are located between the two third gears 6, so as to improve the force balance. When the front wheel 5 rotates, it drives the front wheel shaft 501 to rotate, and the front wheel shaft 501 drives the third gear 6 to rotate. The third gear 6 drives the first gear 2 to rotate through the first chain, and the first gear 2 drives the roller shaft 101 to rotate, and the roller shaft 101 drives the hollow roller 1 to rotate.

[0042] Furthermore, a threaded rod 8 is screwed onto the vehicle plate 27 and passes through the vehicle plate 27. A lifting frame 21 is rotatably provided at the bottom of the threaded rod 8 through a bearing 802. An adjusting wheel 7 is rotatably provided on the lifting frame 21. A guide rod 22 is slidably inserted between the lifting frame 21 and the vehicle plate 27. The height of the adjusting wheel 7 is adjusted by rotating the threaded rod 8. When the bottom height of the adjusting wheel 7 is lower than the bottom height of the front wheel 5, the adjusting wheel 7 and the rear wheel 3 are in contact with the mold and the front wheel 5 is separated from the mold. At this time, when the spraying device is pushed, the hollow roller 1 does not rotate to keep the outflow port 1701 in a blocked state. Specifically, the threaded rod 8 can rotate by itself through the setting of the bearing 802. The bearing 802 is fixed or rotatably embedded in the lifting frame 21 so that the bearing 802 cannot move axially relative to the lifting frame 21, and the threaded rod 8 cannot move axially relative to the lifting frame 21. A handle 801 is fixedly installed on the top of the threaded rod 8. The handle 801 is rotated to drive the threaded rod 8 to rotate. The threaded rod 8 is screwed to the vehicle plate 27 so that the threaded rod 8 can drive the lifting frame 21 to move up and down synchronously when it rotates. The up and down movement of the lifting frame 21 drives the adjusting wheel 7 to move up and down, thereby adjusting the height of the adjusting wheel 7. When the bottom height of the adjusting wheel 7 is lower than the front wheel 5, the front wheel 5 can be lifted. At this time, the adjusting wheel 7 and the rear wheel 3 are in contact with the inner wall of the mold, and the front wheel 5 is separated from the inner wall of the mold. Therefore, when the spraying device is pushed at this time, the front wheel 5 will not rotate, and the hollow roller 1 will not rotate, so that the outflow port 1701 remains blocked. In this state, it is suitable for use when the spraying device is moved when no spraying operation is performed.

[0043] The principle is as follows: before the spraying operation, the spraying device needs to be moved onto the mold. At this time, the handle 801 is first turned to drive the threaded rod 8 to rotate, so that the height of the adjusting wheel 7 is lowered until the bottom height of the adjusting wheel 7 is lower than the bottom height of the front wheel 5 and the front wheel 5 is lifted and separated from the ground, and then the spraying device is pushed onto the mold; then, the handle 801 is turned in the opposite direction, so that the threaded rod 8 raises the height of the adjusting wheel 7 until the front wheel 5 contacts the inner wall of the mold, and the adjusting wheel 7 is separated from the inner wall of the mold, and then the spraying device is pushed again. The movement of the spraying device drives the front wheel 5 to rotate, and the front wheel 5 drives the hollow roller 1 to rotate so that the release agent flows out intermittently for spraying.

[0044] In this embodiment, the brush includes a swing plate 12 and elastic hairs 11, the elastic hairs 11 are fixedly mounted on the bottom of the swing plate 12, the swing plate 12 is rotatably mounted below the vehicle plate 27, a connecting column 1201 is arranged on the swing plate 12, a fixed disk 104 is fixedly sleeved on the roller shaft 101, an eccentric column 16 is fixedly mounted at the eccentric position of the fixed disk 104, one end of the linkage rod 15 is rotatably connected to the connecting column 1201, and the other end is rotatably connected to the eccentric column 16. Specifically, a first support plate 13 is fixedly mounted on the vehicle plate 27, one end of the swing plate 12 is rotatably mounted on the first support plate 13, and the other end of the swing plate 12 is mounted with the elastic hairs 11. When the roller shaft 101 is driven to rotate by the first gear 2, the roller shaft 101 drives the fixed plate 104 to rotate synchronously, and the fixed plate 104 drives the eccentric column 16 to rotate synchronously. The rotation of the eccentric column 16 pulls the swing plate 12 to swing back and forth through the connecting rod 15, and the reciprocating swing of the swing plate 12 drives the elastic hair 11 to swing back and forth, so that the elastic hair 11 is coated with the release agent.

[0045] In this embodiment, an arc rod 18 is fixedly installed on the vehicle plate 27, and the arc rod 18 is slidably plugged into the swing plate 12. A compression spring 19 is sleeved on the arc rod 18, and the end of the compression spring 19 abuts against the side of the swing plate 12 so that the elastic force of the compression spring 19 is applied to the swing plate 12. When one end of the spraying device is tilted so that the front wheel 5 is separated from the mold, the compression spring 19 pushes the swing plate 12 to rotate away from the hollow roller 1 to drive the linkage rod 15 to pull the hollow roller 1 to rotate to a specific angle. At this time, one of the blocking surfaces 103 blocks the outflow outlet 1701.

[0046] Through the arrangement of the compression spring 19 and the arc rod 18, the specific principle is as follows: during the spraying process, when the position of the spraying device needs to be moved and the release agent is not desired to flow out, the spraying device only needs to be tilted with the bottom of the rear wheel 3 as a fulcrum to lift the end away from the rear wheel 3 so that the front wheel 5 is separated from the inner wall of the mold. At this time, the friction between the front wheel 5 and the mold disappears, and the swing plate 12 is pushed to rotate under the action of the elastic force of the compression spring 19 so that the swing plate 12 rotates to a specific angle. When the swing plate 12 rotates to a specific angle, the hollow roller 1 is pulled to rotate to a specific angle through the connecting rod 15. At this time, the blocking surface 103 corresponds to the outflow port 1701, thereby blocking the outflow port 1701 so that the release agent does not flow out; similarly, after the spraying of the release agent is completed, the spraying device only needs to be tilted away from the rear wheel 3 to separate the front wheel 5 from the inner wall of the mold, so that the outflow port 1701 can be closed, thereby preventing the release agent from flowing out.

[0047] It can be seen that the present invention, through the arrangement of the arc rod 18 and the compression spring 19, plays the role of enabling the hollow roller 1 to automatically close the outflow port 1701 no matter what angle the hollow roller 1 is at, as long as the spray device is tilted with the bottom of the rear wheel 3 as a fulcrum to separate the front wheel 5 from the inner wall of the mold. This produces a technical effect that the hollow roller 1 can automatically close the outflow port 1701 without performing other operations or setting up an electric structure, and the closing operation is more timely and easy to operate.

[0048] The arc center of the arc rod 18 falls on the rotation axis of the swing plate 12 .

[0049] Further, when the adjusting wheel 7 and the rear wheel 3 are in contact with the inner wall of the mold or the ground and the front wheel 5 is separated from the inner wall of the mold or the ground, the brush rotates to a specific angle under the elastic force of the compression spring 19, and the cleaning roller 9 is also rotated under the car plate 27. When the hollow roller 1 rotates to a specific angle, the elastic hair 11 contacts the cleaning roller 9. Figure 2 As shown, the cleaning roller 9 is linked with the rear wheel 3, and when the regulating wheel 7 and the rear wheel 3 are in contact with the mold and the front wheel 5 is separated from the mold, the spraying device is pushed to drive the rear wheel 3 to rotate, and the rear wheel 3 drives the cleaning roller 9 to rotate so that the cleaning roller 9 automatically cleans the elastic hair 11. It can be seen that the present invention utilizes the arrangement of the compression spring 19 and the arc rod 18, so that when the front wheel 5 is separated from the mold or the ground, the brush rotates to a specific angle, and at this time the cleaning roller 9 contacts the elastic hair 11. When the spraying device is pushed away from the mold, the spraying device drives the rear wheel 3 to rotate, and the rear wheel 3 drives the cleaning roller 9 to rotate, thereby generating the automatic cleaning effect of the cleaning roller 9 on the elastic hair 11, and there is no need to clean the elastic hair 11 separately, and the elastic hair 11 can be cleaned only when the spraying device is pushed away from the mold, thereby achieving an unexpected technical effect.

[0050] The cleaning roller 9 includes a plurality of pins 902 fixedly arranged on its outer peripheral surface. When the cleaning roller 9 rotates, the plurality of pins 902 are driven to rotate, and the plurality of pins 902 are inserted into the elastic hairs 11, thereby cleaning the elastic hairs 11.

[0051] In this embodiment, the rear wheel 3 is rotatably mounted below the vehicle plate 27 via the rear wheel shaft 301, the rear wheel 3 is fixedly connected to the rear wheel shaft 301, the cleaning roller 9 is rotatably mounted below the vehicle plate 27 via the cleaning roller shaft 901, specifically, a second support plate 14 is fixedly mounted on the vehicle plate 27, 901 is rotatably mounted on the second support plate 14, the cleaning roller 9 is fixedly connected to the cleaning roller shaft 901, a second gear 4 is coaxially fixedly mounted on the rear wheel shaft 301, a fourth gear 10 is coaxially fixedly mounted on the cleaning roller shaft 901, and the second gear 4 is connected to the fourth gear 10 via a second chain (not shown in the figure). Among them, the number of the second gears 4 is two and symmetrically arranged, the two rear wheels 3 are located between the two second gears 4, the number of the fourth gears 10 is two and symmetrically arranged, the cleaning roller 9 is located between the two fourth gears 10, the two second gears 4 correspond to the two fourth gears 10 one by one and are both connected via a second chain transmission. When the rear wheel 3 rotates, it drives the rear wheel shaft 301 and the second gear 4 to rotate. The rotation of the second gear 4 drives the fourth gear 10 to rotate through the second chain. The fourth gear 10 drives the cleaning roller shaft 901 and the cleaning roller 9 to rotate.

[0052] In this embodiment, the front wheel 5 is located between the rear wheel 3 and the adjusting wheel 7, and the height of the adjusting wheel 7 is adjusted so that the height of the elastic hair 11 is increased during the separation of the front wheel 5 from the mold so that the elastic hair 11 is separated from the mold. Among them, when the rear wheel 3 and the front wheel 5 are in contact with the inner wall of the mold at the same time, the height of the elastic hair 11 is low, and the elastic hair 11 is always in contact with the inner wall of the mold during the swinging process to make the coating more uniform. When the front wheel 5 is separated from the inner wall of the mold, and the adjusting wheel 7 and the rear wheel 3 are in contact with the inner wall of the mold at the same time, the height of the elastic hair 11 is increased, and the elastic hair 11 is not in contact with the inner wall of the mold or the ground, so that the elastic hair 11 is kept clean. It can be seen that when the front wheel 5 is separated from the inner wall of the mold, not only can the convection outlet 1701 of the hollow roller 1 be automatically closed, but also the height of the elastic hair 11 can be increased without contacting the ground, so that the elastic hair 11 is kept clean when the coating operation is not performed, and the elastic hair 11 is rotated to a specific angle to be automatically cleaned by the cleaning roller 9, thereby producing multiple beneficial effects.

[0053] In this embodiment, the outlet 1701 is flat. The flatness of the outlet 1701 directly affects the unit outflow amount of the release agent, and the flatness of the outlet 1701 is determined according to actual conditions.

[0054] In this embodiment, the elastic force of the compression spring 19 will not affect the reciprocating swing of the swing plate 12 pulled by the linkage rod 15 .

[0055] In this embodiment, the hollow roller 1 includes an elastic layer 29 and a hard layer 28. The elastic layer 29 is sleeved on the outside of the hard layer 28. The hard layer 28 is made of metal, wood, plastic, etc., as long as it is not easily deformed. It is preferably made of a material with a smaller mass so that the hollow roller can rotate smoothly under the elastic force of the compression spring 19. The hard layer 28 is used for support, and the elastic layer 29 is made of rubber or latex. The outer surface of the elastic layer 29 is used to block the flow outlet 1701. The elastic force of the elastic layer 29 can enable the elastic layer 29 to better block the flow outlet 1701.

[0056] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A safe and reliable shield segment mold release agent spraying device, comprising a vehicle plate (27), a rear wheel (3) and a front wheel (5) rotatably arranged below the vehicle plate (27), and a receiving cylinder (25) fixedly mounted on the vehicle plate (27), characterized in that: The bottom of the accommodating cylinder (25) is connected to a buffer box (17) via a connecting pipe (26), and a free end of the buffer box (17) is provided with an outflow port (1701); A hollow roller (1) is rotatably arranged below the vehicle plate (27) and is matched with the outflow port (1701); the hollow roller (1) is linked to the front wheel (5) through a linkage mechanism; a plurality of inner grooves (102) are equidistantly arranged on the outer circumference of the hollow roller (1); a blocking surface (103) is formed between each of the plurality of inner grooves (102); the blocking surface (103) abuts against and seals the outflow port (1701); A brush is rotatably provided below the vehicle plate (27), and a linkage rod (15) is connected between the brush and the eccentric position of the hollow roller (1); When the rear wheel (3) and the front wheel (5) contact the mold, they push the spraying device to drive the front wheel (5) to rotate. The front wheel (5) drives the hollow roller (1) to rotate through the linkage mechanism, driving the multiple blocking surfaces (103) to intermittently block the flow outlet (1701) so that the demoulding agent can intermittently flow out from the flow outlet (1701) to the inner wall of the mold. At the same time, the rotation of the hollow roller (1) drives the brush to swing back and forth through the linkage rod (15) to apply the demoulding agent.

2. The safe and reliable shield segment mold release agent spraying device according to claim 1 is characterized in that: The hollow roller (1) is rotatably mounted below the vehicle plate (27) via a roller shaft (101), and the hollow roller (1) is fixedly connected to the roller shaft (101). The front wheel (5) is rotatably mounted below the vehicle plate (27) via a front wheel shaft (501), and the front wheel (5) is fixedly connected to the front wheel shaft (501).

3. The safe and reliable shield segment mold release agent spraying device according to claim 2 is characterized in that: The linkage mechanism comprises a first gear (2) coaxially fixedly sleeved on the roller shaft (101) and a third gear (6) coaxially fixedly sleeved on the front wheel shaft (501); the first gear (2) and the third gear (6) are connected via a first chain transmission.

4. The safe and reliable shield segment mold release agent spraying device according to claim 1 is characterized in that: A threaded rod (8) penetrating the vehicle plate (27) is screwed onto the vehicle plate (27); a lifting frame (21) is rotatably provided at the bottom of the threaded rod (8) via a bearing (802); an adjusting wheel (7) is rotatably provided on the lifting frame (21); a guide rod (22) is slidably inserted between the lifting frame (21) and the vehicle plate (27); the height of the adjusting wheel (7) is adjusted by rotating the threaded rod (8); when the bottom height of the adjusting wheel (7) is lower than the bottom height of the front wheel (5), the adjusting wheel (7) and the rear wheel (3) are in contact with the mold while the front wheel (5) is separated from the mold; at this time, when the spraying device is pushed, the hollow roller (1) does not rotate so that the outflow port (1701) remains in a blocked state.

5. The safe and reliable shield segment mold release agent spraying device according to claim 2 is characterized in that: The brush comprises a swing plate (12) and elastic bristles (11), wherein the elastic bristles (11) are fixedly mounted on the bottom of the swing plate (12), the swing plate (12) is rotatably mounted below a vehicle plate (27), a connecting column (1201) is arranged on the swing plate (12), a fixed disk (104) is fixedly sleeved on the roller shaft (101), an eccentric column (16) is fixedly mounted at an eccentric position of the fixed disk (104), and one end of the linkage rod (15) is rotatably connected to the connecting column (1201), and the other end is rotatably connected to the eccentric column (16).

6. The safe and reliable shield segment mold release agent spraying device according to claim 5 is characterized in that: An arc rod (18) is fixedly mounted on the vehicle plate (27), and the arc rod (18) is slidably plugged with the swing plate (12). A compression spring (19) is sleeved on the arc rod (18), and the end of the compression spring (19) abuts against the side of the swing plate (12) so that the elastic force of the compression spring (19) is applied to the swing plate (12). When one end of the spraying device is tilted to separate the front wheel (5) from the mold, the compression spring (19) pushes the swing plate (12) to rotate in a direction away from the hollow roller (1) to drive the linkage rod (15) to pull the hollow roller (1) to rotate to a specific angle, at which time one of the blocking surfaces (103) blocks the outflow outlet (1701).

7. The safe and reliable shield segment mold release agent spraying device according to claim 6 is characterized in that: A cleaning roller (9) is also rotatably arranged below the vehicle plate (27); when the hollow roller (1) rotates to a specific angle, the elastic hairs (11) contact the cleaning roller (9); the cleaning roller (9) is linked to the rear wheel (3); when the regulating wheel (7) and the rear wheel (3) contact the mold and the front wheel (5) is separated from the mold, the spraying device is pushed to drive the rear wheel (3) to rotate; the rear wheel (3) drives the cleaning roller (9) to rotate so that the cleaning roller (9) automatically cleans the elastic hairs (11).

8. The safe and reliable shield segment mold release agent spraying device according to claim 7 is characterized in that: The rear wheel (3) is rotatably mounted below the vehicle plate (27) via a rear wheel axle (301), the rear wheel (3) is fixedly connected to the rear wheel axle (301), the cleaning roller (9) is rotatably mounted below the vehicle plate (27) via a cleaning roller axle (901), the cleaning roller (9) is fixedly connected to the cleaning roller axle (901), a second gear (4) is coaxially fixed on the rear wheel axle (301), a fourth gear (10) is coaxially fixed on the cleaning roller axle (901), and the second gear (4) and the fourth gear (10) are connected via a second chain transmission.

9. The safe and reliable shield segment mold release agent spraying device according to claim 5 is characterized in that: The front wheel (5) is located between the rear wheel (3) and the adjusting wheel (7), and the height of the adjusting wheel (7) is adjusted so that the height of the elastic hair (11) is increased during the process of separating the front wheel (5) from the mold so that the elastic hair (11) is separated from the mold.

10. The safe and reliable shield segment mold release agent spraying device according to claim 1 is characterized in that: The outflow port (1701) is flat.

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