Concrete pipe piece film covering device

Abstract

The utility model discloses a concrete pipe piece film covering device which comprises a pipe piece conveying mechanism and a film covering mechanism. The conveying mechanism comprises a mounting frame and a duct piece conveying belt arranged on the mounting frame; the film covering mechanism is arranged on the mounting frame and comprises a film supporting device, a film tensioning device and a film cutting device; the film supporting device is arranged above the mounting frame, is used for supporting a film winding drum and releasing a film, and comprises two mounting seats with vertical arm structures, and a winding shaft of the film winding drum is rotatably arranged on the two mounting seats; the film cutting device is arranged behind the pressing mechanism of the film tensioning device on the running path of the conveying belt and comprises a cutting knife which transversely moves along the running path of the conveying belt to achieve film cutting. The first inner rod and the second inner rod of the film covering device are movably connected, and the spring is used, so that the tensioning roller and the pressing roller can be automatically adjusted according to different heights of the surfaces of the pipe pieces, and a good film covering effect can be guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of building construction, especially to the technical field of concrete prefabrication, and specifically relates to a concrete segment film coating device. BACKGROUND

[0002] Concrete prefabricated segments are structural components used in tunneling, underground piping and other engineering projects. They are generally prefabricated concrete slabs in a factory, which can be rapidly assembled into complete pipes or tunnels through splicing. The advantages of such prefabricated components include controllable quality, fast construction speed and reduced environmental impact of on-site construction. After production, prefabricated segments usually need to be coated, mainly to increase their durability and waterproof performance.

[0003] During transportation and storage, the coating can protect the concrete surface from contamination by dirt and chemicals. In the prior art, the coating of prefabricated segments is still mainly done manually, although the proportion of automatic coating devices is gradually increasing. The automatic coating devices in the prior art usually include a movable frame and multiple rollers, which realize the coating of prefabricated segments through the rollers. Such coating devices have a disadvantage that they cannot conform to the surface of prefabricated segments, easily causing air bubbles between the coated film and the segments.

[0004] In the patent application with publication number CN112278977A, an automatic cutting and coating device for large-diameter shield segments and a coating method are disclosed. The automatic cutting and coating device includes a frame, a storage assembly, a tensioning assembly, a cutting assembly, a film pressing assembly and a film holding assembly. The film pressing assembly is controlled by a chain and can be lifted. During use, the film pressing assembly cannot be lifted along with the curvature of the segments, thus causing many air bubbles on the surface of the coated segments, affecting the coating effect. SUMMARY

[0005] The utility model aims to provide a concrete segment film coating device to solve the technical problem that the existing coating device cannot conform to the surface of prefabricated segments, causing air bubbles between the coated film and the segments.

[0006] The utility model adopts the technical scheme of:

[0007] A concrete segment film coating device, characterized by: including segment transmission mechanism and film coating mechanism, the transmission mechanism includes the mounting bracket and the segment transmission belt arranged in the mounting bracket, the film coating mechanism is arranged on the mounting bracket and includes: film support device, film tensioning device, film cutting device.

[0008] The film supporting device is arranged above the mounting frame for supporting the film roll and releasing the film, and includes two mounting seats with vertical arm structure, and the shaft of the film roll is rotatably arranged on the two mounting seats;

[0009] The film tensioning device includes a tensioning mechanism and a pressing mechanism arranged before and after the running path of the transmission belt; the tensioning mechanism is composed of a first supporting assembly, a first connecting seat and a tensioning roller, the two sets of elastic telescopic sleeves of the first supporting assembly are fixed at the upper end of the mounting frame and connected to the first connecting seat at the lower end, the tensioning roller is hingedly installed between the two first connecting seats and in contact with the transmission belt or the tube sheet;

[0010] The film cutting device is arranged behind the pressing mechanism of the film tensioning device in the running path of the transmission belt, and includes a cutting knife for cutting the film by moving transversely along the running path of the transmission belt.

[0011] Further, the film cutting device includes a cutting mechanism composed of a cutting motor, a fixed seat, a rotating wheel, a rotating belt, a cutting seat and a cutting knife; the cutting motor is arranged on the mounting frame and drivingly connected to a rotating wheel; the fixed seat is fixedly arranged below the mounting frame and above the running path of the transmission belt; each of the two ends of the fixed seat transversely is provided with a rotating wheel, and the rotating belt is sleeved on the two rotating wheels; a transversely arranged sliding groove is arranged at the lower part of the fixed seat, the cutting knife is fixedly installed at the lower part of the cutting seat, and the cutting seat is provided with a sliding block in the sliding groove of the fixed seat, which is driven by the rotating belt wheel to reciprocate in the sliding groove.

[0012] Further, the film cutting device further includes an auxiliary pressing mechanism composed of a third supporting assembly, a pressing rod and a pressing roller; the two sets of elastic telescopic sleeves of the third supporting assembly are fixed at the upper end of the mounting frame, and each of the third supporting assemblies is connected to a obliquely arranged pressing rod at the lower part, and the pressing roller is hingedly arranged between the two ends of the pressing rods, and the pressing roller is in contact with the transmission belt or the tube sheet at the side of the cutting knife of the cutting mechanism.

[0013] Further, the elastic telescopic sleeves of the first supporting assembly, the second supporting assembly and the third supporting assembly are each composed of an elastic cylinder, a spring and an inner rod; the elastic cylinder is a telescopic sleeve, the outer sleeve is fixed on the mounting frame, the inner sleeve is connected and fixed with the inner rod after being sleeved with the spring, and the inner rod is connected and fixed with the connecting seat or the pressing rod.

[0014] Further, the pressing roller of the pressing mechanism is sleeved with a limiting wheel at the rotating shaft of the transverse two ends for limiting the position of the tube sheet on both sides.

[0015] Further, the front of the film tensioning device and both sides of the running path of the conveying belt are provided with baffle structure guard frames, and the inner side of each guard frame is provided with a free roller structure guard wheel along the height of the segment path.

[0016] Further, the front side of the cutting seat of the cutting mechanism is provided with an auxiliary compression roller, and the auxiliary compression roller is transversely arranged and fixed to the cutting mechanism through support arms at both ends of the rotating shaft.

[0017] Further, the conveying belt comprises a conveying chain, a conveying wheel and a driving motor, the conveying wheel is rotationally connected with the mounting frame, the conveying chain is sleeved on the conveying wheel, and the driving motor is drivingly connected with the conveying wheel.

[0018] Compared with the prior art, the film coating device has the following beneficial effects:

[0019] The concrete segment film coating device allows the tensioning roller and the compression roller to flexibly follow the surface change of the prefabricated segment, ensures that the film can be closely attached to the surface of the segment, reduces the warping and bubble problems of the film material during the film coating process, and improves the film coating quality. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure schematic view of the film coating device of the utility model;

[0021] Figure 2 It is a structure schematic view of the first support assembly part of the film coating device of the utility model;

[0022] Figure 3 It is a structure schematic view of the second support assembly part of the film coating device of the utility model;

[0023] Figure 4 It is a structure schematic view of the third support assembly part of the film coating device of the utility model;

[0024] Figure 5 It is a whole structure schematic view of the cutting mechanism of the film coating device of the utility model;

[0025] Figure 6 It is a whole structure schematic view of the second support assembly of the film coating device of the utility model;

[0026] Figure 7 It is a structure schematic view of the guard frame of the film coating device of the utility model;

[0027] Figure 8 It is a local structure schematic view of the cutting part of the film coating device of the utility model.

[0028] Marked in the figure: 1-mounting frame, 2-conveying wheel, 3-conveying belt, 4-guard frame, 5-second connecting seat, 6-pressing roller, 7-cutting motor, 8-cutting seat, 9-pressing roller, 10-pressing rod, 11-rotating belt, 12-rotating wheel, 13-third supporting assembly, 14-fixing seat, 15-second supporting assembly, 16-first supporting assembly, 17-first connecting seat, 18-tensioning roller, 19-mounting seat, 20-film roll, 21-first cylinder, 22-first spring, 23-first inner rod, 24-second cylinder, 25-second spring, 26-second inner rod, 27-third cylinder, 28-third spring, 29-third inner rod, 30-cutting knife, 31-limiting wheel, 32-guard wheel, 33-tube piece. DETAILED DESCRIPTION

[0029] The utility model is further described below in combination with specific embodiments, and the specific embodiments are further descriptions of the principle of the utility model and do not limit the utility model in any way. The same or similar technology of the utility model does not exceed the protection scope of the utility model.

[0030] In the description of the utility model, the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0031] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screw connection" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited, the above-mentioned terms in the utility model can be understood according to the specific meaning in the utility model by the person skilled in the art according to the specific situation.

[0032] Embodiment:

[0033] As Figure 1As shown, a concrete segment coating device includes an installation and transmission mechanism and a coating mechanism. The installation and transmission mechanism includes a mounting frame 1 and a transmission belt 3. The transmission belt 3 is driven by a transmission wheel 2 and mounted on the mounting frame 1. The coating mechanism is mounted on the mounting frame 1. The coating mechanism includes a film roll 20, a first support assembly 16, a second support assembly 15, a tensioning roller 18, and a pressing roller 6. The first support assembly 16 includes a first cylinder 21, a first inner rod 23, and a first spring 22. The second support assembly 15 includes a second cylinder 24, a second inner rod 26, and a second spring 25. The film roll... Cylinder 20 is rotatably connected to the top of mounting bracket 1. First cylinder 21 and second cylinder 24 are both fixed to the top of mounting bracket 1. First inner rod 23 is movably connected to first cylinder 21. Second inner rod 26 is movably connected to second cylinder 24. First spring 22 is connected to first cylinder 21 and first inner rod 23 at both ends. Second spring 25 is connected to second cylinder 24 and second inner rod 26 at both ends. First connecting seat 17 is fixedly connected to the bottom of first inner rod 23. Tensioning roller 18 is rotatably connected to first connecting seat 17. Second connecting seat 5 is fixedly connected to the bottom of second inner rod 26. Pressure roller 6 is rotatably connected to second connecting seat 5.

[0034] Mounting frame 1 serves as the main support and mounting structure, used to mount conveyor belt 3 and the coating mechanism. Conveyor belt 3 is used to place and transport prefabricated tube segments 33, facilitating coating of the prefabricated tube segments 33. Film roll 20 is used to store film and provide film to be coated.

[0035] like Figure 2 As shown, the first support assembly 16 is used to mount the tension roller 18, which is used to stretch the film so that the film can be flatly covered on the surface of the precast tube.

[0036] like Figure 3 As shown, the second support assembly 15 is used to mount the pressure roller 6, which presses the film onto the precast tube segment 33 to ensure a tight fit between the film and the precast tube segment 33. The design of the first cylinder 21, the first inner rod 23, and the first spring 22 allows the tension roller 18 to move up and down, meaning that the tension roller 18 can follow the changes in the surface of the precast tube segment 33. The design of the first cylinder 21, the second inner rod 26, and the second spring 25 allows the pressure roller 6 to move up and down, meaning that the pressure roller 6 can follow the changes in the surface of the precast tube segment 33.

[0037] In use, firstly, the film on the film reel 20 is pulled out and the film is attached to the tensioning roller 18 and one side of the bottom of the pressing roller 6, and the preformed pipe piece 33 is placed on the conveying belt 3 and moved by the conveying belt 3. When the preformed pipe piece 33 moves to the bottom of the film covering mechanism, the film is covered on the surface of the preformed pipe piece 33. During the movement of the preformed pipe piece 33, the tensioning roller 18 and the pressing roller 6 always press the film on the preformed pipe piece 33, so that the film can be attached to the preformed pipe piece 33 flatly, the generation of bubbles is reduced, the film covering quality is effectively improved, and the film covering efficiency is also improved.

[0038] As shown in Figure 1 , the conveying belt comprises the conveying belt 3, the transmission wheel 2, and the driving motor; the transmission wheel 2 is rotationally connected with the mounting frame 1, the conveying belt 3 is sleeved on the transmission wheel 2, and the driving motor is connected with the transmission wheel 2. The driving motor is used to drive the transmission wheel 2 to rotate, the transmission wheel 2 is used to drive the conveying belt 3 to rotate, the pipe piece 33 is moved by the conveying belt 3, so that the pipe piece 33 is conveniently covered with the film.

[0039] As shown in Figure 1 , the top of the mounting frame 1 is detachably connected with the mounting seat 19, and the film reel 20 is rotationally connected with the mounting seat 19. The mounting seat 19 is used to connect the film reel 20, and the film reel 20 is detachably connected with the mounting frame 1 through the mounting seat 19. The detachable connection between the mounting seat 19 and the mounting frame 1 realizes the detachable connection between the film reel 20 and the mounting frame 1. Through this design, the film reel 20 is conveniently replaced, and different films are used according to different preformed pipe pieces 33.

[0040] As shown in Figure 6 , the two sides of the pressing roller 6 are fixedly connected with the limiting wheels 31. The limiting wheels 31 are used to limit the preformed pipe piece 33 on the conveying belt 3, so as to prevent the preformed pipe piece 33 from tilting. After the preformed pipe piece 33 tilts, it cannot guarantee that the film can be stably covered on the surface thereof. The limiting wheels 31 contact the edges of the preformed pipe piece 33 to correct the posture of the preformed pipe piece 33, so as to guarantee the stable film covering of the preformed pipe piece 33.

[0041] As shown in Figure 5 , the top of the mounting frame 1 is also connected with the cutting mechanism, and the cutting mechanism comprises the fixed seat 14, the rotating wheels 12, the rotating belt 11, the cutting seat 8, the cutting knife 30, and the cutting motor 7. The fixed seat 14 is fixedly connected with the mounting frame 1, the rotating wheels 12 are provided in two, the rotating wheels 12 are rotationally connected on the two sides of the fixed seat 14, the rotating belt 11 is sleeved on the two rotating wheels 12, the cutting motor 7 is fixedly connected with the fixed seat 14, and the output shaft of the cutting motor 7 is drivingly connected with one of the rotating wheels 12. The cutting seat 8 is slidingly arranged in the limiting sliding groove at the bottom of the fixed seat 14, the cutting seat 8 is also drivingly connected with the rotating belt 11, and the cutting knife 30 is connected at the bottom of the cutting seat 8.

[0042] The cutting motor 7 is used to drive the rotating wheel 12 to rotate, the rotating wheel 12 is used to drive the rotating belt 11 to rotate, the rotating belt 11 drives the cutting seat 8 to move, the cutting seat 8 drives the cutting knife 30 to move, and the cutting of the film is completed through the cutting knife 30, realizing the continuous film covering and cutting of multiple prefabricated pipe pieces 33. Since the cutting mechanism is provided, the installation transmission mechanism needs to cooperate with the cutting mechanism, and the cutting mechanism can only realize the function when it is located between two prefabricated pipe pieces 33. Therefore, the prefabricated pipe piece 33 needs to be placed at a certain position by the installation transmission mechanism to ensure the normal use of the cutting mechanism, and the installation transmission mechanism continues to work after the cutting is completed.

[0043] As shown in Figure 1 , Figure 4 , the installation frame 1 is provided with a pressing mechanism on both sides of the cutting mechanism. The pressing mechanism comprises a third supporting assembly 13, a pressing rod 10 and a pressing roller 9. The third supporting assembly 13 comprises a third cylinder 27, a third inner rod 29 and a third spring 28. The third cylinder 27 is fixedly connected to the top of the installation frame 1, the third inner rod 29 is movably connected to the third cylinder 27, the third spring 28 is connected to the third inner rod 29 and the third cylinder 27 at both ends, the pressing rod 10 is fixedly connected to the bottom of the third inner rod 29, and the pressing roller 9 is rotatably connected to the bottom of the pressing rod 10. The pressing mechanism is used to ensure the stability of the film and the prefabricated pipe piece 33 when the film is cut, so that the cutting mechanism can stably cut the film. The pressing roller 9 and the pressing rod 10 are pressed on the film of the prefabricated pipe piece under the action of the third spring 28 in the third supporting assembly 13, preventing the film from wrinkling.

[0044] The cutting motor 7 is a forward and reverse motor. The forward and reverse motor can realize forward and reverse movement, the forward and reverse motor drives the rotating wheel 12 to rotate forward and reverse, the rotating wheel 12 drives the rotating belt 11 to rotate forward and reverse, and the rotating belt 11 drives the cutting member 8 to reciprocate, thereby realizing the function of cutting.

[0045] As shown in Figure 7 , the installation frame 1 is connected with a protection frame 4 on both sides. The protection frame 4 is used to prevent the prefabricated pipe piece 33 on the transmission belt 3 from falling off, which can ensure the stability of the prefabricated pipe piece 33. The inner side of the protection frame 4 is rotatably connected with a protection wheel 32. The protection wheel 32 is used to protect the prefabricated pipe piece 33. When the prefabricated pipe piece 33 contacts the protection frame 4, it will contact the protection wheel 32. The protection wheel 32 can guide the prefabricated pipe piece 33 and prevent the prefabricated pipe piece 33 from being damaged by impacting the protection frame 4.

[0046] The installation frame 1 is made of square steel. The installation frame 1 made of square steel has low overall weight and high overall structural strength, which facilitates the carrying of the entire pipe piece film covering device.

Claims

1. A concrete segment lamination device, characterized by: The pipe piece conveying mechanism and the film covering mechanism are included; the conveying mechanism includes a mounting frame and a pipe piece conveying belt arranged on the mounting frame; The film covering mechanism is arranged on the mounting frame and includes a film supporting device, a film tensioning device and a film cutting device. The film supporting device is arranged above the mounting frame for supporting a film roll and releasing the film and includes two vertical arm structure mounting seats, and a shaft of the film roll is rotatably arranged on the two mounting seats. The film tensioning device includes a tensioning mechanism and a pressing mechanism arranged before and after the running path of the conveying belt; the tensioning mechanism is composed of a first supporting assembly, a first connecting seat and a tensioning roller, the two sets of elastic telescopic sleeves of the first supporting assembly are fixed at the upper end of the mounting frame and connected to the first connecting seat at the lower end, the tensioning roller is hingedly arranged between the two first connecting seats and in contact with the conveying belt or the pipe piece; the pressing mechanism is composed of a second supporting assembly, a second connecting seat and a pressing roller, the two sets of elastic telescopic sleeves of the second supporting assembly are fixed at the upper end of the mounting frame and connected to the second connecting seat at the lower end, and the pressing roller is hingedly arranged between the second connecting seat and in contact with the conveying belt or the pipe piece. The film cutting device is arranged behind the pressing mechanism of the film tensioning device along the running path of the conveying belt and includes a cutting knife for cutting the film by moving transversely along the running path of the conveying belt.

2. The concrete segment lining apparatus of claim 1, wherein: The film cutting device includes a cutting mechanism composed of a cutting motor, a fixed seat, a rotating wheel, a rotating belt, a cutting seat and a cutting knife; the cutting motor is arranged on the mounting frame and drivingly connected to a rotating wheel; the fixed seat is fixedly arranged below the mounting frame and above the running path of the conveying belt; one rotating wheel is arranged at each of the transverse ends of the fixed seat, and the rotating belt is sleeved on the two rotating wheels; a transversely arranged sliding groove is arranged at the lower part of the fixed seat, the cutting knife is fixedly arranged at the lower part of the cutting seat, and the cutting seat is arranged with a sliding block in the sliding groove of the fixed seat and driven by the rotating belt wheel to reciprocate in the sliding groove.

3. A concrete segment lining apparatus according to claim 2, characterised in that: The film cutting device further includes an auxiliary pressing mechanism composed of a third supporting assembly, a pressing rod and a pressing roller; the two sets of elastic telescopic sleeves of the third supporting assembly are fixed at the upper end of the mounting frame, and each third supporting assembly is connected with a obliquely arranged pressing rod at the lower end, and the pressing roller is hingedly arranged between the two ends of the pressing rods and in contact with the conveying belt or the pipe piece at the side of the cutting knife of the cutting mechanism.

4. A concrete segment lining apparatus according to claim 2 or 3, characterised in that: The elastic telescopic sleeves of the first supporting assembly, the second supporting assembly and the third supporting assembly are each composed of an elastic cylinder, a spring and an inner rod; the elastic cylinder is a telescopic sleeve, the outer sleeve is fixed on the mounting frame, the inner sleeve is connected with the inner rod at the outer end after sleeving the spring, and the inner rod is connected with the connecting seat or the pressing rod.

5. The concrete segment lining apparatus of claim 4, wherein: The shafts at the transverse ends of the pressing roller of the pressing mechanism are sleeved with limiting wheels for limiting the positions of the two sides of the pipe piece.

6. The concrete segment lining apparatus of claim 4, wherein: The front of the film tensioning device and the two sides of the running path of the conveying belt are provided with baffle structures for protection frame, and the inner side surfaces of each protection frame are provided with protection wheels of a free roller structure along the height of the pipe piece path.

7. The concrete segment lining apparatus of claim 4, wherein: The lower part of the cutting seat of the cutting mechanism and the front side of the cutting knife are provided with an auxiliary pressing roller, and the auxiliary pressing roller is transversely arranged, the shafts at the two ends of the auxiliary pressing roller are fixed on the cutting mechanism through supporting arms.

8. The concrete segment lining apparatus of claim 4, wherein: The transmission belt comprises a transmission chain, a transmission wheel and a driving motor; the transmission wheel is rotationally connected with the mounting frame, the transmission chain is sleeved on the transmission wheel, and the driving motor is drivingly connected with the transmission wheel.

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