A conveyor belt type spreading machine cloth feeding member

Abstract

The application discloses a conveying belt type cloth spreading machine cloth feeding component and belongs to the technical field of cloth spreading machines. The cloth feeding component comprises a feeding roller, a motor, a conveying belt and unpowered rollers, two feeding rollers are symmetrically arranged above a frame, the motor is fixedly arranged on the rotating shaft of one end of the feeding roller through a shaft coupling, the bottom surface of the frame is rotatably arranged with a plurality of unpowered rollers through shaft seats, the sidewalls of the two feeding rollers and the plurality of unpowered rollers are sleeved with a plurality of conveying belts, the conveying belt mode is provided with gaps, the cloth can be effectively prevented from being adsorbed on the frame, and the cloth can be effectively fed, the cloth or the thread end of the cloth is not easily clamped in various installation gaps of the machine itself, and the mode of the plurality of unpowered rollers arranged below can effectively reduce the situation that the tightness of the belt is not uniform due to the deflection of the roller, and the entering cloth is prevented from being at different speeds due to the slipping of part of the belt.

Description

Technical Field

[0001] This application relates to the field of fabric spreading machine technology, specifically to a fabric feeding component for a conveyor belt type fabric spreading machine. Background Technology

[0002] A linen spreading machine is a machine specifically designed to flatten washed linens, facilitating subsequent ironing and folding processes. "Linen" is a hotel industry term, referring to towels, tablecloths, sheets, pillowcases, and other items placed in guest rooms.

[0003] The fabric inlet of the fabric spreading machine uses the negative pressure generated by the centrifugal fan of the fabric spreading machine to draw the fabric into the air chamber. During this process, a feeding roller driven by a motor assists in sending the fabric into the air chamber.

[0004] However, as hotels have increasingly higher requirements for linens, the thread count and stitch count of linens have significantly increased. Such wet linens will form a "water film," reducing air permeability and creating a partial vacuum. After the linens are unfolded, they are easily adsorbed onto the sheet metal and plexiglass of the feed inlet, hindering the linens from entering the air chamber. In addition, if they are adsorbed onto the feed rollers, they can cause the linens to get stuck between the feed rollers and the lower door frame, requiring the machine to be stopped for processing, affecting the efficiency of the production line, and also damaging the linens and causing economic losses. Utility Model Content

[0005] The purpose of this utility model is to provide a fabric feeding component for a conveyor belt type fabric spreading machine to solve the problems mentioned in the background art.

[0006] The technical solution adopted by this application to solve its technical problem is:

[0007] A fabric feeding component for a conveyor belt type fabric spreading machine is installed at the air inlet of the fabric spreading machine. The fabric feeding component includes a feeding roller, a motor, a conveyor belt, and non-powered rollers. A frame is slidably installed at the air inlet. There are two feeding rollers, which are symmetrically installed on the top of the frame. The motor is fixedly installed to the shaft at one end of the feeding rollers via a coupling. The bottom surface of the frame is rotatably installed with multiple non-powered rollers via bearing seats. Multiple conveyor belts are sleeved on the side walls of the two feeding rollers and the multiple non-powered rollers. The multiple conveyor belts are connected by transmission between the feeding rollers and the non-powered rollers under the drive of the motor.

[0008] Preferably, multiple positioning strips are wound around the sidewalls of both the feed roller and the unpowered roller, and multiple conveyor belts cover the positioning strips.

[0009] Preferably, the sidewall of the conveyor belt above the unpowered roller is provided with a grid plate, and the sidewall of the grid plate has multiple slots through which the conveyor belt passes.

[0010] Preferably, lifting components are installed on both sides of the frame. The lifting components include a first cylinder, a limiting bracket, and a guide rail. The telescopic shaft of the first cylinder is hinged to the bottom of the limiting bracket. The guide rail is fixedly installed on the side wall of the limiting bracket. The motor is installed on the limiting bracket.

[0011] Preferably, an anti-foreign object assembly is installed in the air cavity. The anti-foreign object assembly includes a fixed base, a second cylinder, a crank handle, a bearing seat, and a foreign object detection flap. The tail of the second cylinder is hinged to the side wall of the fixed base. The telescopic shaft of the second cylinder is hinged to the crank handle via a fork. The end of the crank handle is fixedly installed on both ends of the foreign object detection flap. The rotating shafts at both ends of the foreign object detection flap are rotatably connected to the bearing seat. A magnetic switch is installed on one side of the telescopic shaft of the second cylinder.

[0012] Preferably, the side wall of the frame has a hollowed-out groove, and a transparent PC board is installed on the hollowed-out groove.

[0013] The beneficial effects of this application are:

[0014] 1. The conveyor belt in this technical solution has built-in gaps, which can effectively prevent linens from adhering to the frame and also assist in feeding. Linens or their threads are less likely to get stuck in the various installation gaps of the machine itself. The multiple non-powered rollers in the lower row can effectively reduce the uneven tension of the belt caused by roller deflection, and prevent the linens from entering at different speeds due to slippage of some belts, which would cause them to pull against each other. Pulling will cause vertical wrinkles in the linens, especially multi-layered linens, such as duvet covers. These wrinkles are difficult to compensate for and iron out by the ironing machine (the ironing machine can flatten horizontal wrinkles), which will affect the quality of the final product.

[0015] 2. This technical solution adds a foreign object detection function to promptly block non-compliant linens and prevent them from clogging subsequent production line equipment. Clogging not only causes the entire ironing system to stop, but may also damage the linens, as well as machine components such as conveyor belts and motors. By detecting foreign objects through the anti-foreign object component, the machine can be set to stop immediately and alarm, allowing operators to intervene and remove the linens. At this time, because the linens are still on the conveyor belt, they can be easily removed.

[0016] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is an overall schematic diagram of the linen feeding component of a conveyor belt type fabric spreading machine according to this utility model;

[0019] Figure 2 This is a schematic diagram of the lifting component structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the foreign object protection component of this utility model.

[0021] The following are the labeling elements in the figure:

[0022] 1. Feed roller;

[0023] 2. Electric motor;

[0024] 3. Conveyor belt;

[0025] 4. Non-powered rollers;

[0026] 5. Framework;

[0027] 6. Transparent PC board;

[0028] 7. Lifting assembly; 71. First cylinder; 72. Limit bracket; 73. Guide rail;

[0029] 8. Positioning strip;

[0030] 9. Fixture;

[0031] 10. Second cylinder;

[0032] 11. Crank handle;

[0033] 12. Bearing housing;

[0034] 13. Foreign object detection flap;

[0035] 14. Grating. Detailed Implementation

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application.

[0038] Please see Figure 1-3 The embodiments provided by this utility model are as follows:

[0039] like Figure 1 and Figure 2 As shown, a conveyor belt type fabric spreading machine has a fabric feeding component. The fabric feeding component is installed at the air inlet of the fabric spreading machine. The fabric feeding component includes a feeding roller 1, a motor 2, a conveyor belt 3, and a non-powered roller 4. A frame 5 is slidably installed at the air inlet, and its position can be adjusted according to the fabric feeding requirements. There are two feeding rollers 1, which are symmetrically installed above the frame 5. The motor 2 is fixedly installed to the rotating shaft at one end of the feeding roller 1 through a coupling. The bottom surface of the frame 5 is rotatably installed to multiple non-powered rollers 4 through shaft seats. Multiple conveyor belts 3 are sleeved on the side walls of the two feeding rollers 1 and the multiple non-powered rollers 4. The multiple conveyor belts 3 are driven by the motor 2 and are connected to the feeding rollers 1 and the non-powered rollers 4 through transmission.

[0040] Two symmetrically arranged feeding rollers 1 serve as the active transmission components. The motor 2 transmits power to the rotating shaft of the feeding roller 1 through a coupling, driving the feeding roller 1 to rotate. Since the motor 2 is equipped with a frequency converter to control the speed, it is kept 50%-100% faster than the linen feeding speed. The surface linear speed of the feeding roller 1 can be adjusted on-site according to the material of the linen (such as cotton, chemical fiber, blended fabric, etc.) to form an active traction effect and avoid the accumulation of linen due to insufficient power during feeding.

[0041] Multiple unpowered rollers 4 mounted on the bottom surface of frame 5 via bearing seats form a closed loop of conveyor belt 3 with the upper feeding roller 1. When the feeding roller 1 rotates, the conveyor belt 3 is driven to move by the friction between the conveyor belt 3 and the roller. The unpowered rollers 4 are passively rotated by the conveyor belt 3 without providing additional power. Considering that the width of the fabric spreading machine often exceeds 3 meters and some reach 4 meters, a single unpowered roller 4 is prone to large deflection due to its thin wall thickness. Therefore, a design of multiple unpowered rollers 4 arranged in parallel is adopted to disperse the pressure of the conveyor belt 3 tension on the rollers and prevent inconsistent belt tension due to roller deformation. An overly loose belt may even slip and affect the synchronous feeding of the linens.

[0042] Multiple positioning strips 8 are wound around the side walls of both the feeding roller 1 and the non-powered roller 4. In actual use, masking tape is often used, which has both anti-slip and cushioning properties. Multiple conveyor belts 3 are covered on the positioning strips 8. When the conveyor belts 3 are covered on the positioning strips 8, the positioning strips 8 will block the lateral displacement of the conveyor belts 3, preventing the conveyor belts 3 from shifting to both sides during transmission due to factors such as the centrifugal force of the roller rotation and uneven force on one side of the linen. Through the physical limitation of the positioning strips 8, the position of the conveyor belts 3 is fixed from the soft constraint angle, preventing the conveyor belts 3 from shifting and causing the linen to be fed in crookedly. At the same time, the positioning strips 8 can reduce the direct friction between the conveyor belts 3 and the side walls of the rollers, reducing the wear of the conveyor belts 3.

[0043] Furthermore, a grid plate 14 is provided on the side wall of the conveyor belt 3 above the non-powered roller 4. The side wall of the grid plate 14 has multiple slots. The conveyor belt 3 passes through multiple slots. The grid plate 14 is installed on the side wall of the conveyor belt 3 above the non-powered roller 4. The multiple slots it has are one-to-one with the conveyor belt 3. When the conveyor belt 3 passes through the slots, the slot wall of the grid plate 14 will form a hard lateral constraint on the conveyor belt 3. Combined with the soft constraint of the positioning strip 8 of the upper roller, a double upper and lower limit is formed. Compared with the single soft constraint of the positioning strip 8, the hard constraint of the grid plate 14 can more stably limit the displacement of the conveyor belt 3. It is especially suitable for scenarios where the span of the conveyor belt 3 is large and it is easy to deviate in wide-width spreading machines.

[0044] Furthermore, the side wall of the frame 5 is provided with a hollow groove, on which a transparent PC board 6 is installed. The transparent PC board 6 has both high strength and light transmittance. Covering the hollow groove does not affect the overall structural strength of the frame 5, while allowing the operator to directly observe the entry status of the linens inside the air cavity, such as whether the linens are piled up, whether they are offset, or whether they fit the air duct.

[0045] like Figure 2 As shown, lifting components 7 are installed on both sides of the frame 5. The lifting components 7 include a first cylinder 71, a limiting bracket 72, and a guide rail 73. The telescopic shaft of the first cylinder 71 is hinged to the bottom of the limiting bracket 72. The guide rail 73 is fixedly installed on the side wall of the limiting bracket 72. The motor 2 is installed on the limiting bracket 72. When it is necessary to adjust the height of the feeding roller 1 to accommodate linens of different thicknesses, the telescopic shaft of the first cylinder 71 extends and retracts, driving the limiting bracket 72 to move up and down. The motor 2 is fixed on the limiting bracket 72 and will rise and fall synchronously with the limiting bracket 72 to adjust the overall position of the linen feeding component.

[0046] like Figure 3 As shown, an anti-foreign object assembly is installed in the air cavity. The anti-foreign object assembly includes a fixed base 9, a second cylinder 10, a crank handle 11, a bearing seat 12, and a foreign object detection flap 13. The tail of the second cylinder 10 is hinged to the side wall of the fixed base 9. The telescopic shaft of the second cylinder 10 is hinged to the crank handle 11 through a fork. The end of the crank handle 11 is fixedly installed on both ends of the foreign object detection flap 13. The rotating shafts at both ends of the foreign object detection flap 13 are rotatably connected to the bearing seat 12. A magnetic switch is installed on one side of the telescopic shaft of the second cylinder 10.

[0047] The tail of the second cylinder 10 is hinged to the fixed base 9. When the telescopic shaft retracts, it pulls the crank handle 11 to rotate via the fork rod. The crank handle 11 drives the foreign object detection flap 13 to retract upward, leaving sufficient space for the linens to enter the lower air duct cavity and preventing the flap from blocking the linens from entering. When the linens have all entered the air duct and begin to rise, the telescopic shaft of the second cylinder 10 extends, pushing the crank handle 11 to rotate, causing the foreign object detection flap 13 to flip downward, forming a narrow slit with the frame 5. The width of the slit is suitable for the thickness of normal linens, allowing normal linens to pass smoothly along the slit. If foreign objects, such as buttons, are mixed in with the linens, the slit will not be cleared. If there are loose threads or knots at the edges, the thickness of which exceeds the width of the seam, the foreign object detection flap 13 will be pushed up when the linen is lifted, causing the crank handle 11 to rotate. This will cause the extension shaft of the second cylinder 10 to move. Since the cylinder is equipped with a magnetic switch, it can sense the position of the cylinder rod under normal conditions. When the cylinder rod moves, the magnetic switch loses its sensing signal and immediately issues an alarm, triggering the equipment to stop or slow down. At this time, manual intervention is needed to troubleshoot the problem and prevent the problematic linen from entering the subsequent production line equipment and causing greater malfunctions, such as linen jamming, which takes longer to resolve.

[0048] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A linen feeding component for a conveyor belt type fabric spreading machine, characterized in that: The fabric feeding component is installed at the air inlet of the fabric feeding machine. The fabric feeding component includes a feeding roller (1), a motor (2), a conveyor belt (3), and a non-powered roller (4). A frame (5) is slidably installed at the air inlet. There are two feeding rollers (1), which are symmetrically installed above the frame (5). The motor (2) is fixedly installed to the shaft at one end of the feeding roller (1) through a coupling. The bottom surface of the frame (5) is rotatably installed to multiple non-powered rollers (4) through a bearing seat. Multiple conveyor belts (3) are sleeved on the side walls of the two feeding rollers (1) and the multiple non-powered rollers (4). The multiple conveyor belts (3) are driven by the motor (2) and are connected to the feeding rollers (1) and the non-powered rollers (4) through transmission.

2. The fabric feeding component of a conveyor belt type fabric spreading machine according to claim 1, characterized in that: Multiple positioning strips (8) are wound around the side walls of both the feeding roller (1) and the unpowered roller (4), and multiple conveyor belts (3) cover the positioning strips (8).

3. The fabric feeding component of a conveyor belt type fabric spreading machine according to claim 1, characterized in that: The conveyor belt (3) above the non-powered roller (4) has a grid plate (14) on its side wall. The grid plate (14) has multiple slots on its side wall, and the conveyor belt (3) passes through the multiple slots.

4. The fabric feeding component of a conveyor belt type fabric spreading machine according to claim 1, characterized in that: Lifting components (7) are installed on both sides of the frame (5). The lifting components (7) include a first cylinder (71), a limiting bracket (72), and a guide rail (73). The telescopic shaft of the first cylinder (71) is hinged to the bottom of the limiting bracket (72). The guide rail (73) is fixedly installed on the side wall of the limiting bracket (72). The motor (2) is installed on the limiting bracket (72).

5. The fabric feeding component of a conveyor belt type fabric spreading machine according to claim 1, characterized in that: An anti-foreign object assembly is installed in the air cavity. The anti-foreign object assembly includes a fixed base (9), a second cylinder (10), a rocker arm (11), a bearing seat (12), and a foreign object detection flap (13). The tail of the second cylinder (10) is hinged to the side wall of the fixed base (9). The telescopic shaft of the second cylinder (10) is hinged to the rocker arm (11) through a fork. The end of the rocker arm (11) is fixedly installed on both ends of the foreign object detection flap (13). The rotating shafts at both ends of the foreign object detection flap (13) are rotatably connected to the bearing seat (12). A magnetic switch is installed on one side of the telescopic shaft of the second cylinder (10).

6. The fabric feeding component of a conveyor belt type fabric spreading machine according to claim 1, characterized in that: The side wall of the frame (5) is provided with a hollow groove, and a transparent PC board (6) is installed on the hollow groove.

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