A tarpaulin coating uniform coating device

Abstract

The application discloses a tension-adjustable tarpaulin coating uniform coating device and belongs to the tarpaulin coating technical field, which comprises two screw rod seats, a pair of sliding connections in the sliding groove, two follow-up blocks symmetrically arranged below the mounting frame, vertical sliding of the follow-up blocks arranged below the screw rod seat, and pressure extension balls rolling arranged at the bottom of the follow-up blocks and used for flattening and spreading the tarpaulin in the width direction. In the application, the pressure extension balls exert flattening and spreading forces on the tarpaulin from the center to the two sides, can relax the wrinkles generated in the width direction of the tarpaulin, improve the surface flatness of the tarpaulin, make the tarpaulin and the drying roller more closely contact through the pressure and close combination of the pressure extension balls and the tarpaulin, enhance the heat transfer and drying effect of the drying roller, and guarantee the rapid setting of the coating layer.

Description

Technical Field

[0001] This invention belongs to the field of tarpaulin coating technology, and particularly relates to a tarpaulin coating uniform coating device with adjustable tension. Background Technology

[0002] As a flexible waterproof material widely used in cargo transportation, outdoor construction, agricultural facilities and military equipment, the performance of tarpaulins largely depends on the quality of the surface coating. A uniform and strongly adherent coating can not only effectively improve the waterproofness and weather resistance of tarpaulins, but also significantly enhance their tear resistance, thereby better protecting materials, extending the life of tarpaulins and adapting to more complex and harsh environmental conditions in actual use.

[0003] According to Chinese Patent Publication No. CN218282288U, a coating device for weather-resistant modified coated fabric is disclosed, including a base plate, with support legs fixedly installed at the four bottom corners of the base plate, positioning plates fixedly installed on both sides of the top of the base plate, and pads fixedly installed at both ends of the bottom of the base plate; a transmission device installed between the two positioning plates, the transmission device being adapted to drive the coated fabric and ensure the tension of the coated fabric, the outer side of the transmission device being wrapped with the coated fabric; and a placement rack located on the top of the base plate.

[0004] However, the above solution only adjusts the tension in the length direction of the tarpaulin, which has the following drawbacks: during the tarpaulin transmission process, the width direction of the tarpaulin is not spread out smoothly, which can easily cause wrinkles in the tarpaulin, thus affecting the coating effect on the tarpaulin. Summary of the Invention

[0005] The purpose of this invention is to solve the problem that during the tarpaulin transmission process, the tarpaulin lacks flatness in the width direction, which easily causes wrinkles in the tarpaulin and thus affects the coating effect on the tarpaulin. Therefore, an adjustable tension tarpaulin coating uniform coating device is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An adjustable tension tarpaulin coating uniform coating device includes a mounting frame, wherein a sliding groove is formed at the center of the mounting frame, and further includes:

[0008] Two lead screw seats are slidably connected in pairs within the sliding groove;

[0009] Two follower blocks are symmetrically arranged below the mounting frame, and the follower blocks are vertically slidably arranged below the lead screw seat;

[0010] The rolling ball bearings are located at the bottom of the follower block and are used to flatten and spread the tarpaulin in the width direction.

[0011] Preferred options also include:

[0012] Side panel, connected to one side of the mounting bracket;

[0013] Two stroke grooves are symmetrically opened on the side of the side plate facing the follower block. The stroke groove is a racetrack-shaped structure composed of two horizontal grooves and two semi-circular grooves.

[0014] Two follower wheels are rotatably connected to one side of the follower block via a rotating shaft, and the follower wheels are slidably connected in the stroke groove.

[0015] Preferred options also include:

[0016] A guide slide rod is connected to the top of the follower block. A sliding hole is provided at the bottom of the lead screw seat, and the guide slide rod is slidably connected in the sliding hole.

[0017] Preferred options also include:

[0018] The double reciprocating screw mechanism is rotatably connected to the top of the mounting frame via a mounting base. The double reciprocating screw mechanism consists of two symmetrically arranged reciprocating screws, and the two screw bases are symmetrically connected to the outer surface of the reciprocating screws.

[0019] The drive motor is mounted on one side of the mounting bracket via a mounting plate, and one end of the double reciprocating screw mechanism is connected to one end of the output shaft of the drive motor.

[0020] Preferred options also include:

[0021] A drying roller, with a rotating shaft and a hollow shaft connected to both ends of the drying roller respectively. Both the rotating shaft and the hollow shaft are rotatably connected to the mounting frame. Multiple air vents are provided on the outer surface of the drying roller.

[0022] The inner tube is coaxially mounted inside the drying roller via a mounting component, and the hollow shaft is connected to the inner tube. Multiple through grooves are provided on the outer circumference of the inner tube.

[0023] A breathable block is slidably connected to the outer surface of the inner tube and can block the through groove. The breathable block has a stepped structure with gradually increasing thickness.

[0024] A heating device is located on one side below the mounting frame, and the heating device is connected to the hollow shaft through a connecting pipe.

[0025] Preferred options also include:

[0026] A rotating ring is rotatably connected to the outer circumference of the inner tube, and the rotating ring is connected to one side of the air-permeable block;

[0027] A transmission gear ring is connected to the outer circumference of the rotating ring;

[0028] A drive gear is rotatably connected inside the drying roller via a rotating rod, and the drive gear meshes with a transmission gear ring.

[0029] Preferred options also include:

[0030] A knob is located on the outside of the drying roller. The knob is connected to the end of the rotating rod away from the drive gear. Multiple circumferentially distributed limiting grooves are provided on the outer periphery of the knob.

[0031] Threaded parts are installed on the side wall of the drying roller;

[0032] The limiting bolt is threaded into the threaded part and can be inserted into the limiting groove.

[0033] Preferred options also include:

[0034] The processing tank is located below the mounting frame and is divided into a coating processing area and a receiving area.

[0035] An unwinding mechanism is connected to one end of the processing tank near the coating processing area;

[0036] The winding mechanism is connected to the end of the processing tank near the receiving area.

[0037] Preferred options also include:

[0038] A lifting push rod is connected to the side wall of the processing groove, and the top of the lifting push rod is connected to one side of the bottom of the mounting frame;

[0039] A fixed slide rod is connected to one side of the top of the processing groove, and the fixed slide rod is slidably connected to the bottom of the mounting frame.

[0040] Preferred options also include:

[0041] A guide roller is installed at the top of the processing trough and is located between the winding mechanism and the drying roller.

[0042] Compared with existing technologies, the adjustable tension tarpaulin coating uniform coating device that adopts the above technical solution has the following beneficial effects:

[0043] 1. In this invention, the follower block, driven by a double reciprocating screw mechanism, applies a flattening and spreading force from the center to both sides to the tarpaulin using the calendering rollers. This smooths out the wrinkles in the width direction of the tarpaulin, improving the flatness of the tarpaulin surface. Furthermore, the tight fit between the calendering rollers and the tarpaulin makes the contact between the tarpaulin and the drying roller more intimate, enhancing the heat transfer and drying effect of the drying roller and ensuring rapid setting of the coating layer. In addition, during the return stroke of the follower block, the follower wheel, in conjunction with the stroke groove, drives the follower block and the calendering rollers upward, allowing the calendering rollers to completely separate from the tarpaulin during the return stroke. This avoids secondary interference or scratches to the already flattened tarpaulin caused by the return stroke movement, thus improving the coating effect of the tarpaulin.

[0044] 2. In this invention, the drying roller is moved vertically by the lifting push rod, which can adjust the tension of the tarpaulin in real time during the coating process, ensuring uniform force and improving coating quality. Furthermore, the heating device delivers hot steam through the hollow axial inner tube, which enters the drying roller via the through-groove. The steam is slowly and evenly filled by the filtering and blocking effect of the permeable block, and then evenly output through the vent holes, efficiently drying and shaping the coated tarpaulin and improving forming efficiency. In addition, rotating the knob sequentially drives the drive gear, transmission gear ring, and rotating ring, thereby driving the permeable block to rotate. The stepped thickness change of the permeable block adjusts the flow rate of hot steam into the drying roller, thus changing the steam ejection speed from the vent holes, achieving flexible control of the drying rate and significantly improving the applicability of the device to different tarpaulin materials. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0046] Figure 2 This is a three-dimensional structural schematic diagram from another perspective of the present invention;

[0047] Figure 3 This is a three-dimensional structural diagram of the drying roller, follower block, and rolling ball in this invention;

[0048] Figure 4 This is a three-dimensional structural diagram of the side plate, stroke groove, and follower wheel in this invention;

[0049] Figure 5 This is a three-dimensional structural diagram of the lead screw seat, follower block, and rolled ball in this invention;

[0050] Figure 6 This is a three-dimensional cross-sectional view of the drying roller in this invention;

[0051] Figure 7 This is a three-dimensional structural diagram of the inner tube, rotating ring, and vent block in this invention;

[0052] Figure 8 For the present invention Figure 7 Enlarged structural diagram of section A;

[0053] Figure 9 This is a schematic diagram of the three-dimensional disassembled structure of the inner tube, rotating ring, and air-permeable block in this invention.

[0054] Legend: 1. Unwinding mechanism; 2. Processing groove; 3. Lifting push rod; 4. Guide roller; 5. Rewinding mechanism; 6. Heating device; 701. Drive motor; 702. Double reciprocating screw mechanism; 703. Screw seat; 704. Follower block; 705. Guide slide rod; 706. Rolling ball; 707. Side plate; 708. Stroke groove; 709. Rotating shaft; 710. Follower wheel; 801. Drying roller; 802. Air vent block; 803. Inner tube; 804. Through groove; 805. Rotating ring; 806. Knob; 807. Limiting groove; 808. Drive gear; 809. Transmission gear ring; 810. Limiting bolt; 811. Threaded part; 9. Mounting bracket; 10. Fixed slide rod; 11. Hollow shaft. Detailed Implementation

[0055] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0056] Please see Figures 1-5 The present invention provides a technical solution:

[0057] An adjustable tension tarpaulin coating uniform coating device includes a mounting frame 9, wherein a sliding groove is formed at the center of the mounting frame 9, and further includes:

[0058] The processing tank 2 is located below the mounting frame 9, and the processing tank 2 is divided into a coating processing area and a receiving area. The coating processing area is equipped with a limiting roller and a mixing roller.

[0059] The unwinding mechanism 1 is connected to one end of the processing tank 2 near the coating processing area;

[0060] The winding mechanism 5 is connected to one end of the processing tank 2 near the receiving area;

[0061] Both the unwinding mechanism 1 and the winding mechanism 5 consist of a rotating roller and a fixed motor.

[0062] Two lifting push rods 3 are symmetrically arranged on both sides of the processing slot 2. The lifting push rods 3 are connected to the side wall of the processing slot 2, and the top of the lifting push rods 3 is connected to one side of the bottom of the mounting frame 9.

[0063] Two sets of fixed slide rods 10, each set of fixed slide rods 10 consists of two fixed slide rods 10, the fixed slide rods 10 are connected to one side of the top of the processing groove 2, and the fixed slide rods 10 are slidably connected to the bottom of the mounting frame 9;

[0064] Guide roller 4 is installed on the top of processing groove 2, and the guide roller 4 is located between winding mechanism 5 and drying roller 801;

[0065] Two lead screw seats 703 are slidably connected in pairs within the sliding groove;

[0066] Two follower blocks 704 are symmetrically arranged below the mounting bracket 9, and the follower blocks 704 are vertically slidably arranged below the lead screw seat 703;

[0067] Two sets of calendered rollers 706, each set of calendered rollers 706 consists of two calendered rollers 706, the calendered rollers 706 are rolled and set at the bottom of the follower block 704, used to flatten and spread the tarpaulin in the width direction;

[0068] Side panel 707 is connected to one side of mounting bracket 9;

[0069] Two stroke grooves 708 are symmetrically opened on the side of the side plate 707 facing the follower block 704. The stroke grooves 708 are racetrack-shaped structures composed of two horizontal grooves and two semi-circular grooves.

[0070] Two follower wheels 710 are rotatably connected to one side of the follower block 704 via a rotating shaft 709, and the follower wheels 710 are slidably connected in the stroke groove 708;

[0071] Two sets of guide slide rods 705, each set of guide slide rods 705 consists of two guide slide rods 705, the guide slide rods 705 are connected to the top of the follower block 704, the bottom of the lead screw seat 703 is provided with a sliding hole, and the guide slide rods 705 are slidably connected in the sliding hole;

[0072] The double reciprocating screw mechanism 702 is rotatably connected to the top of the mounting frame 9 via a mounting base. The double reciprocating screw mechanism 702 consists of two symmetrically arranged reciprocating screws. The two screw seats 703 are symmetrically connected to the outer surface of the reciprocating screws. The reciprocating screw refers to a screw body with a continuous and closed helical groove on its outer circular surface. The helical groove forms a smooth reversing structure at both ends of the screw axis. When the screw rotates, the slider or nut that cooperates with it can automatically reciprocate linearly along the screw axis without changing the direction of screw rotation. This is a relatively mature existing technology.

[0073] The drive motor 701 is mounted on one side of the mounting bracket 9 via a mounting plate, and one end of the double reciprocating screw mechanism 702 is connected to one end of the output shaft of the drive motor 701.

[0074] The specific usage method and working principle are as follows: The tarpaulin is passed through the unwinding mechanism 1, the limiting roller, the drying roller 801, the guide roller 4 and the winding mechanism 5 in sequence to form a coating process. During this process, the unwinding mechanism 1 and the winding mechanism 5 cooperate with each other to complete the orderly unwinding and winding of the tarpaulin. The guide roller 4 and the drying roller 801 guide and straighten the tarpaulin and dry it.

[0075] In the coating processing area, rotating rollers and mixing rollers work together to coat the tarpaulin. The coated tarpaulin is then conveyed to the drying roller 801. At this time, the drive motor 701 drives the double reciprocating screw mechanism 702 to rotate. The reciprocating screw in the double reciprocating screw mechanism 702 can drive the screw seat 703 to reciprocate horizontally. The double reciprocating screw mechanism 702 drives two symmetrically arranged screw seats 703 to move in opposite directions within the sliding groove. Figure 4 As shown, the lead screw seat 703 drives the follower block 704 to move from the center of the side plate 707 to both sides through the guide slide rod 705. At this time, the follower block 704 drives the follower wheel 710 to move in the straight groove below the stroke groove 708 through the rotating shaft 709. This allows the follower block 704 to drive the calendering ball 706 to flatten and spread the tarpaulin from the center to both sides, thereby smoothing out the wrinkles in the width direction of the tarpaulin and ensuring the flatness of the tarpaulin. At the same time, the calendering ball 706 presses and adheres the tarpaulin to the dryer roller 801, making the tarpaulin and the dryer roller 801 fit more tightly, thus improving the drying and shaping effect of the dryer roller 801 on the tarpaulin.

[0076] like Figure 4 As shown, when the lead screw seat 703 drives the follower block 704 to move to the outermost side of the stroke groove 708 via the guide slide rod 705, the follower block 704 drives the follower wheel 710 to move along the semi-arc groove outside the stroke groove 708 via the rotating shaft 709, so that the follower wheel 710 moves to the straight groove above under the guidance of the semi-arc groove, and then the follower wheel 710 moves towards the center position of the side plate 707 in the straight groove. During this process, the follower wheel 710 drives the follower block 704 to move upward via the rotating shaft 709, so that the follower block 704 drives the calendering ball 706 to separate from the tarpaulin, so that the calendering ball 706 no longer affects the tarpaulin during the return stroke, so as to keep the tarpaulin in a flat state.

[0077] Please see Figures 1-2 and Figures 6-9 It also includes:

[0078] Drying roller 801, with a rotating shaft and a hollow shaft 11 connected to both ends of the drying roller 801 respectively. Both the rotating shaft and the hollow shaft 11 are rotatably connected to the mounting frame 9. Multiple air vents are opened on the outer surface of the drying roller 801.

[0079] The inner tube 803 is coaxially mounted inside the drying roller 801 via a mounting component, and the hollow shaft 11 is connected to the inner tube 803. Multiple through grooves 804 are provided on the outer periphery of the inner tube 803.

[0080] Multiple air-permeable blocks 802 are slidably connected to the outer surface of the inner tube 803 and can block the through groove 804. The multiple air-permeable blocks 802 are arranged in a circumferential array and the air-permeable blocks 802 have a stepped structure with gradually increasing thickness.

[0081] Heating device 6 is located on one side below mounting bracket 9, and heating device 6 is connected to hollow shaft 11 through connecting pipe;

[0082] Two rotating rings 805 are symmetrically arranged inside the drying roller 801. The rotating rings 805 are rotatably connected to the outer periphery of the inner tube 803. The rotating rings 805 are connected to one side of the air-permeable block 802.

[0083] The transmission gear ring 809 is connected to the outer circumference of the rotating ring 805;

[0084] A drive gear 808 is rotatably connected to the inside of the drying roller 801 via a rotating rod, and the drive gear 808 is meshed with a transmission gear ring 809.

[0085] A knob 806 is located on the outer side of the drying roller 801. The knob 806 is connected to the end of the rotating rod away from the drive gear 808. Multiple circumferentially distributed limiting grooves 807 are provided on the outer periphery of the knob 806. Marking arrows are provided on the knob 806.

[0086] Threaded part 811 is installed on the side wall of drying roller 801;

[0087] The limiting bolt 810 is threadedly connected to the threaded part 811, and the limiting bolt 810 can be inserted into the limiting groove 807.

[0088] The specific usage method and working principle are as follows: The tarpaulin is guided onto the drying roller 801. During the tarpaulin coating process, the lifting push rod 3 drives the drying roller 801 to move vertically through the mounting frame 9, which can relatively change the tension on the tarpaulin and ensure uniform force during the coating process. The tarpaulin drives the drying roller 801 to rotate during the movement. The heating device 6 delivers hot steam into the inner tube 803 through the hollow shaft 11. The hot steam flows into the drying roller 801 through the through groove 804. During this process, the hot steam is filtered and blocked by the air vent block 802, so that the hot steam slowly and evenly fills the drying roller 801. After that, the hot steam is delivered to the outside of the drying roller 801 through the air vent. The hot steam dries and shapes the coated tarpaulin, improving the forming efficiency of the tarpaulin.

[0089] When dealing with different printed fabrics, the operator tightens the limiting bolt 810 to separate it from the limiting groove 807. Then, the operator rotates the knob 806, which drives the drive gear 808 to rotate. The drive gear 808 drives the transmission gear ring 809 to rotate, which in turn drives the rotating ring 805 to rotate. The rotating ring 805 then drives the air-permeable block 802 to rotate. Due to the stepped structure of the air-permeable block 802 and its porous ceramic material, the through grooves 804 are covered at different thickness positions of the air-permeable block 802. This changes the speed at which hot steam flows to the drying roller 801, thereby changing the speed at which hot steam is ejected from the vents. This alters the drying rate of the tarpaulin by the drying roller 801, improving the applicability of the device. Furthermore, by observing the position of the marked arrow on the knob 806, the relative position of the rotating air-permeable block 802 can be determined, thus controlling the air permeability efficiency.

[0090] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A tarpaulin coating uniform coating device with adjustable tension, comprising a mounting frame (9), wherein a sliding groove is provided at the center of the mounting frame (9), characterized in that, Also includes: Two lead screw seats (703) are slidably connected in pairs within the sliding groove; Two follower blocks (704) are symmetrically arranged below the mounting bracket (9), and the follower blocks (704) are vertically slidably arranged below the lead screw seat (703); The rolling ball (706) is rolled at the bottom of the follower block (704) to flatten and spread the tarpaulin in the width direction.

2. The adjustable tension tarpaulin coating uniform coating device according to claim 1, characterized in that, Also includes: Side plate (707) is connected to one side of mounting bracket (9); Two stroke grooves (708) are symmetrically opened on the side of the side plate (707) facing the follower block (704). The stroke grooves (708) are racetrack-shaped structures composed of two horizontal grooves and two semi-circular grooves. Two follower wheels (710) are rotatably connected to one side of the follower block (704) via a rotating shaft (709), and the follower wheels (710) are slidably connected in the stroke groove (708).

3. The adjustable tension tarpaulin coating uniform coating device according to claim 1, characterized in that, Also includes: The guide slide rod (705) is connected to the top of the follower block (704), and the bottom of the lead screw seat (703) is provided with a sliding hole, and the guide slide rod (705) is slidably connected in the sliding hole.

4. The adjustable tension tarpaulin coating uniform coating device according to claim 1, characterized in that, Also includes: The double reciprocating screw mechanism (702) is rotatably connected to the top of the mounting frame (9) via the mounting base. The double reciprocating screw mechanism (702) consists of two symmetrically arranged reciprocating screws, and the two screw seats (703) are symmetrically connected to the outer surface of the reciprocating screws. The drive motor (701) is mounted on one side of the mounting bracket (9) via a mounting plate, and one end of the double reciprocating screw mechanism (702) is connected to one end of the output shaft of the drive motor (701).

5. The adjustable tension tarpaulin coating uniform coating device according to claim 1, characterized in that, Also includes: Drying roller (801), with a rotating shaft and a hollow shaft (11) connected to both ends of the drying roller (801), both the rotating shaft and the hollow shaft (11) being rotatably connected to the mounting frame (9), and multiple air vents opened on the outer surface of the drying roller (801); The inner tube (803) is coaxially mounted inside the drying roller (801) via a mounting component, and the hollow shaft (11) is connected to the inner tube (803). Multiple through grooves (804) are provided on the outer periphery of the inner tube (803). The breathable block (802) is slidably connected to the outer surface of the inner tube (803) and can block the through groove (804). The breathable block (802) has a stepped structure with gradually increasing thickness. A heating device (6) is located on one side below the mounting bracket (9), and the heating device (6) is connected to the hollow shaft (11) through a connecting pipe.

6. The adjustable tension tarpaulin coating uniform coating device according to claim 5, characterized in that, Also includes: A rotating ring (805) is rotatably connected to the outer periphery of the inner tube (803), and the rotating ring (805) is connected to one side of the air vent (802); A transmission gear ring (809) is connected to the outer circumference of a rotating ring (805); The drive gear (808) is rotatably connected inside the drying roller (801) via a rotating rod, and the drive gear (808) meshes with the transmission gear ring (809).

7. The adjustable tension tarpaulin coating uniform coating device according to claim 6, characterized in that, Also includes: A knob (806) is located on the outside of the drying roller (801). The knob (806) is connected to the end of the rotating rod away from the drive gear (808). Multiple circumferentially distributed limiting grooves (807) are provided on the outer periphery of the knob (806). Threaded part (811) is installed on the side wall of drying roller (801); The limiting bolt (810) is threaded into the threaded part (811) and can be inserted into the limiting groove (807).

8. The adjustable tension tarpaulin coating uniform coating device according to claim 1, characterized in that, Also includes: The processing tank (2) is located below the mounting bracket (9), and the processing tank (2) is divided into a coating processing area and a receiving area; The unwinding mechanism (1) is connected to one end of the processing tank (2) near the coating processing area; The winding mechanism (5) is connected to one end of the processing tank (2) near the receiving area.

9. The adjustable tension tarpaulin coating uniform coating device according to claim 8, characterized in that, Also includes: The lifting push rod (3) is connected to the side wall of the processing groove (2), and the top of the lifting push rod (3) is connected to the bottom side of the mounting frame (9); A fixed slide rod (10) is connected to the top side of the processing groove (2), and the fixed slide rod (10) is slidably connected to the bottom of the mounting bracket (9).

10. The adjustable tension tarpaulin coating uniform coating device according to claim 8, characterized in that, Also includes: A guide roller (4) is installed on top of the processing groove (2) and is located between the winding mechanism (5) and the drying roller (801).

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