A tape-applying cart for applying tape to joints in building formwork.

Abstract

This invention discloses a tape-applying trolley for applying tape to joints in building formwork. It includes a frame with handrails, rollers mounted at the rear of the frame, and a tape roll spool in the middle of the frame with its axis parallel to the rollers' axis. The improvement lies in the inclusion of a cleaning device at the front of the frame for removing dust from the tape-applying lines. This cleaning device includes a roller brush and a dust extractor located in front of the roller brush. In application, the roller brush sweeps dust from the tape-applying lines towards the dust extractor, which then removes the dust to the side of the lines. The tape roll, wound into rolls, is mounted on the tape roll spool. The pulled-out tape is applied to the formwork on both sides of the joint and pressed firmly by the rear rollers. Its advantages are: it eliminates the need for manual tape application and pre-application formwork cleaning, significantly reducing worker workload and improving efficiency. Furthermore, it features a simple structure and convenient operation.

Description

Technical Field

[0001] This invention relates to an adhesive application cart for applying tape to joints in building formwork, belonging to the field of building equipment technology. Background Technology

[0002] Before pouring concrete floor slabs in building construction, a detachable support platform needs to be built on a scaffold using several formwork templates. Since there are joints between adjacent templates, these joints need to be sealed with tape to prevent grout leakage during concrete pouring. Grout leakage causes two problems: first, it exposes the concrete aggregate, resulting in a rough, pitted surface on the hardened floor slab; second, after the formwork is removed, hard, protruding ridges will form along the joints on the bottom surface of the floor slab. These ridges are extremely difficult to remove, and if not removed, they will affect the painting and finishing of the floor slab's underside.

[0003] Because of the large area of ​​the floor slab and the many seams, the workload of applying tape manually is very large. In hot or cold weather, the work of applying tape manually becomes very difficult.

[0004] Construction sites generate a lot of dust, and the frequent cutting of formwork during installation leaves sawdust that gets blown onto the boards, resulting in a large amount of dust on the formwork. When applying tape, the dust on both sides of the joints must be thoroughly cleaned; otherwise, the tape won't adhere properly. Furthermore, construction workers frequently walk on the formwork, and the work area is often windy, making it difficult to keep the entire area clean enough for tape application after a large-scale cleaning. Therefore, a section-by-section sweeping and tape application method is necessary, further complicating the tape application process.

[0005] This application aims to solve the above-mentioned problems. To make the solution more targeted, the applicant conducted a relevant search of the prior art and obtained patent document with application number 202320723989.3. This document discloses a ground tape pasting device, including a bracket, a rotating roller at the bottom of the bracket, a rotating tape at the top, an arc-shaped support plate on the outer side of the bottom of the tape, and a tensioning arc-shaped pressure plate on the inner side. The arc-shaped pressure plate abuts against the inner wall of the tape to press the tape tightly against the arc-shaped support plate for rotation. A through groove is provided in the middle of the arc-shaped support plate, and the end of the tape passes through the through groove and abuts against the roller, thereby pasting the tape onto the ground by the roller. The tape rests against the curved support plate and is tensioned and fixed by the curved pressure plate. The end of the tape passes through the slot and rests against the roller. The operator moves the push rod to make the roller press the tape firmly to the ground. The rotation of the roller also pulls the tape to rotate, so that the tape can rotate and unwind against the tension. When the movement stops, the tensioning mechanism can fix the tape, ensuring that the tape is tightly pasted, which greatly improves work efficiency and quality and saves manpower and resources.

[0006] According to the technical solution disclosed in the document, although it provides a device for applying tape to the ground, it is not suitable for the application site of this application. In particular, it cannot solve the problem of how to clean up the dust on the ground in time during the tape application process and ensure that the tape is firmly attached. Summary of the Invention

[0007] The technical problem to be solved by this invention is: how to clean up the dust on the surface in time when applying tape to the joints of building formwork to ensure that the tape is firmly adhered.

[0008] To address the above problems, the technical solution proposed by this invention is as follows: A tape-applying trolley for applying adhesive tape to joints in building formwork includes a frame with handrails, rollers mounted at the rear of the frame, and a tape roll spool with its centerline parallel to the rollers' centerline in the middle of the frame. The improvement lies in that the trolley also includes a cleaning device located at the front of the frame for removing dust from the tape-applying lines. The cleaning device includes a roller brush and a dust extractor located in front of the roller brush. In application, the roller brush sweeps dust from the tape-applying lines towards the dust extractor, which then removes the dust to the side of the lines. The tape roll, wound into rolls, is mounted on the tape roll spool. The pulled-out tape is applied to the formwork on both sides of the joint and pressed firmly by the rear rollers.

[0009] Furthermore, the rotation direction of the roller brush is opposite to the forward direction of the adhesive applicator, and the rotating roller brush sweeps the dust forward toward the dust collector.

[0010] Furthermore, the rotation of the roller is driven by the roller through a transmission mechanism and the rotation speed is greater than the rotation speed of the roller.

[0011] Furthermore, the roller and the brush each have a roller shaft and a brush shaft, and the frame includes a longitudinally upright mounting plate. The mounting plate is provided with roller shaft mounting holes and brush shaft mounting holes, respectively. One side of the mounting plate is the functional side, and the other side is the transmission side. The roller shaft and the brush shaft are respectively installed in the roller shaft mounting holes and the brush shaft mounting holes. The roller and the brush are respectively installed and fixed on the functional side of the mounting plate at one end of the roller shaft and the brush shaft located on the functional side.

[0012] Furthermore, the transmission mechanism includes a driving wheel, a driven wheel, a driving gear, a driven gear, an intermediate shaft, and a synchronous belt, all located on the transmission side of the mounting plate. The driving wheel and the driven gear are respectively mounted and fixed to one end of the roller shaft and the brush shaft on the functional side. The driven wheel and the driving gear are mounted and fixed on the intermediate shaft, which is mounted on the mounting plate. The driving wheel and the driven wheel are driven by the synchronous belt, and the driving gear and the driven gear mesh with each other.

[0013] Furthermore, the diameter of the driving gear disk is larger than the diameter of the driven gear disk, and the number of teeth on the driving gear disk is greater than the number of teeth on the driven gear disk.

[0014] Furthermore, the side of the dust collector facing the roller brush is a dust guiding surface that curves in an arc towards the roller brush. The dust guiding surface is divided into a left guide slope and a right guide slope that sweep forward to both sides. A ridge protruding towards the roller brush is formed between the left guide slope and the right guide slope. When the roller brush rotates, the dust ejected on the left guide slope and the right guide slope respectively obtains a component force to the left and a component force to the right.

[0015] Furthermore, a left inclined guide groove is provided on the left guide slope of the dust collector, extending from the ridge to the left and downward, and a right inclined guide groove is provided on the right guide slope of the dust collector, extending from the ridge to the right and downward.

[0016] Furthermore, the bottom surface of the dust collector slides forward along the templates on both sides of the seam, and the front of the dust collector has a left and right sand-discharging slope that sweeps backward to both sides.

[0017] Furthermore, the bottom surface of the dust collector has a replaceable wear-resistant base plate. Beneficial effects

[0018] 1. No manual application of tape is required, and there is no need to clean the template before applying the tape. This not only significantly reduces the labor intensity of workers, but also greatly improves their work efficiency. 2. Simple structure and easy operation. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the adhesive trolley application described in Example 1; Figure 2 This is a three-dimensional schematic diagram of the vehicle frame described in Embodiment 1; Figure 3 This is a schematic diagram of the structural relationship of the driving structure for the roller brush in Embodiment 1; Figure 4 This is a three-dimensional schematic diagram of the adhesive trolley application described in Example 2; Figure 5 This is a three-dimensional schematic diagram of the dust collector described in Embodiment 2.

[0020] In the diagram: 1. Frame; 101. Mounting plate; 1011. Roller shaft mounting hole; 1012. Brush shaft mounting hole; 102. Handrail; 2. Roller; 3. Film roll shaft; 4. Brush; 5. Dust collector; 501. Dust guiding surface; 5011. Left guide slope; 50111. Left slope guide channel; 5012. Right guide slope; 50121. Right slope guide channel; 5013. Ridge; 502. Left sand discharge slope; 503. Right sand discharge slope; 504. Wear-resistant base plate; 6. Roller shaft; 7. Brush shaft; 8. Driven wheel; 9. Driven wheel; 10. Driven gear plate; 11. Driven gear plate; 12. Intermediate shaft; 13. Synchronous belt; 14. Film roll; 15. Adhesive tape; 16. Template; 17. Joint; 18. Dust. Detailed Implementation

[0021] The present invention will be further described below with reference to embodiments and accompanying drawings: Example 1

[0022] like Figure 1 As shown in Figure 3, a trolley for applying adhesive tape to joints of building formwork includes a frame 1 with a handle 102, rollers 2 installed at the rear of the frame 1, and a roll of adhesive tape 3 with its axis parallel to the axis of the rollers 2 in the middle of the frame 1. A cleaning device is located at the front of the frame 1 to remove dust 18 from the adhesive application lines. The cleaning device includes a roller brush 4 and a dust collector 5 located in front of the roller brush 4. In use, the rollers 2 serve as the running wheels, and the trolley is pushed forward by the handle 102. The roller brush 4 sweeps the dust 18 from the adhesive application lines towards the dust collector 5, which then discharges the dust to the side of the adhesive application lines. A roll of adhesive tape 14, coiled from the tape 15, is mounted on the roll of adhesive tape 3. The pulled-out tape 15 is applied to the formwork 16 on both sides of the joint 17, where the dust has been removed by the cleaning device, and is then pressed firmly forward by the rollers 2 at the rear. In this way, there is no need to manually apply the tape 15, nor is it necessary to clean the template before applying the tape 15. This not only significantly reduces the labor intensity of workers, but also greatly improves work efficiency.

[0023] The rotating direction of the roller brush 4 is opposite to the forward direction of the adhesive applicator trolley, and the rotating roller brush 4 sweeps the dust 18 forward toward the dust collector 5. The rotation of the roller brush 4 is driven by the roller 2 through a transmission mechanism, and its rotation speed is greater than that of the roller 2. It is generally designed that the rotation speed of the roller brush 4 is 3 to 5 times the rotation speed of the roller 2. In this way, there is no need to set up a separate dedicated drive power.

[0024] Roller 2 and brush 4 each have roller shaft 6 and brush shaft 7, respectively. The frame 1 includes a longitudinally upright mounting plate 101. The mounting plate 101 is provided with roller shaft mounting holes 1011 and brush shaft mounting holes 1012 for mounting roller shaft 6 and brush shaft 7, respectively. One side of the mounting plate 101 is the functional side, and the other side is the transmission side. Roller shaft 6 and brush shaft 7 are respectively installed in roller shaft mounting holes 1011 and brush shaft mounting holes 1012. Roller 2 and brush 4 are respectively mounted and fixed on the functional side of the mounting plate 101 at the end of roller shaft 6 and brush shaft 7 located on the functional side.

[0025] The aforementioned transmission mechanism includes a driving wheel 8, a driven wheel 9, a driving gear 10, a driven gear 11, an intermediate shaft 12, and a synchronous belt 13, all located on the transmission side of the mounting plate 101. The driving wheel 8 and the driven gear 11 are respectively mounted and fixed to the functional ends of the roller shaft 6 and the brush shaft 7. The driven wheel 9 and the driving gear 10 are mounted and fixed to the intermediate shaft 12, which is mounted on the mounting plate 101. The driving wheel 8 and the driven wheel 9 are driven by the synchronous belt 13, and the driving gear 10 and the driven gear 11 mesh with each other. The diameter of the driving wheel 8 is larger than the diameter of the driven gear 11, and the number of teeth on the driving gear 10 is greater than the number of teeth on the driven gear 11. During operation, the power transmission path of the transmission mechanism is: roller 2—roller shaft 6—driving wheel 8—driven wheel 9—intermediate shaft 12—driving gear 10—driven gear 11—brush shaft 7—brush 4. The diameter of the driving gear 8 is larger than that of the driven gear 11, achieving a first-stage acceleration during transmission; the number of teeth of the driving gear 10 is greater than that of the driven gear 11, adding another stage of acceleration during transmission.

[0026] To prevent dust from falling on the transmission components, a transmission mechanism protective cover (not shown in the figure) is provided on the transmission side of the mounting plate 34.

[0027] The side of the dust collector 5 facing the roller brush 4 is a dust guiding surface 501 that curves in an arc towards the roller brush 4. The dust guiding surface 501 is divided into a left guide slope 5011 and a right guide slope 5012 that sweep forward to both sides. A ridge 5013 protruding towards the roller brush 4 is formed between the left guide slope 5011 and the right guide slope 5012. When the roller brush 4 rotates, the dust ejected on the left guide slope 5011 and the right guide slope 5012 receives a component force to the left and a component force to the right, respectively, thereby diverting the dust falling on the left guide slope 5011 and the right guide slope 5012 to both sides, cleaning out a dust-free adhesive application path.

[0028] The bottom surface of the dust collector 5 slides forward along the templates on both sides of the seam 17. The front of the dust collector 5 has a left sand-discharging slope 502 and a right sand-discharging slope 503 that sweep backward to both sides. This allows the sand particles that are difficult to sweep away by the bristles of the front and rear roller brush 4 to be discharged to both sides through the left sand-discharging slope 502 and the right sand-discharging slope 503.

[0029] The bottom surface of the dust collector 5 has a replaceable wear-resistant base plate 504, which is used to replace the wear-resistant base plate 504 after it wears to a certain extent. Example 2

[0030] like Figure 4 As shown in Figure 5, the difference from Embodiment 1 is that a left inclined guide groove 50111 is provided on the left guide slope 5011 of the dust collector 5, which extends from the ridge 5013 to the left and downward. A right inclined guide groove 50121 is provided on the right guide slope 5012 of the dust collector 5, which extends from the ridge 5013 to the right and downward. This allows dust that falls on the left guide slope 5011 and the right guide slope 5012 without kinetic energy to drift to the left and right sides to slide into the left inclined guide groove 50111 and the right inclined guide groove 50121, respectively. As a result, the dust that falls into the left inclined guide groove 50111 and the right inclined guide groove 50121 can flow to the left and right sides respectively under the action of gravity and the vibration of the dust collector 5 when it slides.

[0031] The above embodiments are only used to describe the present invention more clearly, and should not be regarded as limiting the scope of protection covered by the present invention. Any equivalent modifications should be regarded as falling within the scope of protection covered by the present invention.

Claims

1. A trolley for applying adhesive tape to joints in building formwork, comprising a frame (1) with a handle (102), rollers (2) mounted on the rear of the frame (1), and a tape roll (3) mounted in the middle of the frame (1) with its axis parallel to the axis of the rollers (2), characterized in that: It also includes a cleaning device located at the front of the frame (1) for removing dust (18) from the adhesive application lines. The cleaning device includes a roller brush (4) and a dust collector (5) located in front of the roller brush (4). In use, the roller brush (4) sweeps the dust (18) from the adhesive application lines toward the dust collector (5), and the dust collector (5) discharges the dust to the side of the adhesive application lines. A roll (14) of tape (15) is mounted on a roll spool (3). The pulled-out tape (15) is applied to the templates (16) on both sides of the seam (17) and pressed forward by the rollers (2) behind it. The rotation direction of the roller brush (4) is opposite to the forward direction of the adhesive application cart. The rotating roller brush (4) sweeps the dust (18) forward toward the dust collector (5). The dust collector (5) faces the roller brush (4). One side is a dust-guiding surface (501) that curves in an arc towards the roller brush (4). The dust-guiding surface (501) is divided into a left guide slope (5011) and a right guide slope (5012) that sweep forward to both sides. A ridge (5013) protruding towards the roller brush (4) is formed between the left guide slope (5011) and the right guide slope (5012). When the roller brush (4) rotates, the dust ejected on the left guide slope (5011) and the right guide slope (5012) receives a component force to the left and a component force to the right, respectively. The dust collector (5) has a left inclined guide groove (50111) on the left guide slope (5011) that extends from the ridge (5013) to the left and downward. The dust collector (5) has a right inclined guide groove (50121) on the right guide slope (5012) that extends from the ridge (5013) to the right and downward. The bottom surface of the dust collector (5) slides forward along the templates on both sides of the joint (17). The front of the dust collector (5) has a left sand discharge slope (502) and a right sand discharge slope (503) that sweep backward to both sides.

2. The tape-applying trolley for applying tape to joints of building formwork according to claim 1, characterized in that: The rotation of the roller (4) is driven by the roller (2) through the transmission mechanism and the rotation speed is greater than the rotation speed of the roller (2).

3. The tape-applying trolley for applying adhesive tape to joints of building formwork according to claim 2, characterized in that: The roller (2) and the brush (4) each have a roller shaft (6) and a brush shaft (7). The frame (1) includes a longitudinally upright mounting plate (101). The mounting plate (101) is provided with roller shaft mounting holes (1011) and brush shaft mounting holes (1012) for the roller shaft (6) and the brush shaft (7), respectively. One side of the mounting plate (101) is the functional side, and the other side is the transmission side. The roller shaft (6) and the brush shaft (7) are respectively installed in the roller shaft mounting holes (1011) and the brush shaft mounting holes (1012). The roller (2) and the brush (4) are respectively installed and fixed on the functional side of the mounting plate (101) at one end of the roller shaft (6) and the brush shaft (7) located on the functional side.

4. The tape-applying trolley for applying adhesive tape to joints of building formwork according to claim 3, characterized in that: The transmission mechanism includes a drive wheel (8), a driven wheel (9), a drive gear (10), a driven gear (11), an intermediate shaft (12), and a timing belt (13) located on the transmission side of the mounting plate (101). The drive wheel (8) and the driven gear (11) are respectively mounted and fixed on one end of the roller shaft (6) and the brush shaft (7) located on the transmission side. The driven wheel (9) and the drive gear (10) are mounted and fixed on the intermediate shaft (12), which is mounted on the mounting plate (101). The drive wheel (8) and the driven wheel (9) are driven by the timing belt (13), and the drive gear (10) and the driven gear (11) are meshed and driven.

5. The tape-applying trolley for applying adhesive tape to joints of building formwork according to claim 4, characterized in that: The diameter of the driving wheel (8) is larger than that of the driven wheel (9), and the number of teeth of the driving toothed disc (10) is greater than that of the driven toothed disc (11).

6. The tape-applying trolley for applying adhesive tape to joints of building formwork according to claim 1, characterized in that: The bottom surface of the dust collector (5) has a replaceable wear-resistant base plate (504).

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