JP2024515146A - Felt laying device - Google Patents

Abstract

The felt laying device comprises a #1 belt conveyor (10), a #2 belt conveyor (20), a felt laying machine (30), a swinging mechanism (40), and a felt receiver (50) mounted on a frame (1). The #1 belt conveyor (10) is for receiving a molded single layer of cotton felt and transporting it to the #2 belt conveyor (20). The #2 belt conveyor (20) receives the cotton felt dropped from the #1 belt conveyor (10) and transports it to the #2 belt conveyor (20). The felt laying machine (30) has an upper end hinged to the rear end of the #2 belt conveyor (20) and moves up and down together with the #2 belt conveyor (20), and a lower end connected to a swinging mechanism (40) and swings back and forth horizontally by the drive of the swinging mechanism (40), stacking a single layer of cotton felt dropped from the #2 belt conveyor (20) into a multi-layer cotton felt along the width direction of the felt receiver (50). This felt laying device can convert the arc swing of the felt laying machine when the felt falls into a horizontal linear motion, and a servo motor with a short response time is used as the driving force for changing the swing direction, thereby reducing the horizontal speed difference generated when changing direction, thereby improving the density uniformity in the width of the cotton felt product.

Description

This application relates to the technical field of mineral wool manufacturing, and more specifically to a felt laying device.

Felt laying is an important technical means in the mineral wool production process, which is to repeatedly fold the single layer of cotton felt collected by the cotton collector to make multi-layer cotton felt. Since the pendulum method mineral wool production technology has been widely used, with the gradual improvement of production capacity and the gradual increase of requirements for product quality, the pendulum method felt laying technology in mineral wool production has also been repeatedly updated, from the most traditional uncompensated pendulum swing to speed-compensated pendulum swing. However, due to the inherent structural defects of the pendulum method felt laying technology, the trajectory of the cotton felt falling due to the pendulum swing is an arc, so the multi-layer cotton felt has the disadvantage that the width is thin in the center and thick at both ends. As mineral wool production technology is developed, researched, and popularized, the production volume of mineral wool production lines is moving toward high productivity, and the width of the production lines is becoming wider. The defects of conventional felt laying using arc oscillation are particularly evident in wide production lines. This is because the wider the production line, the longer the oscillating arc, which means the greater the amount of inertia of the oscillation.

In order to solve the technical problem existing in conventional felt laying machines, whereby the laid and molded multi-layered cotton felt is thin in the center and thick at both ends, the present application provides a felt laying device that can make the arc oscillation a linear motion, thereby ensuring that the fall distance of the cotton felt to the horizontal line does not change when the felt falls, and also has the characteristic of being able to realize high-speed direction changes using a servo motor, so that the felt laying machine maintains a constant speed movement state over a considerable width, while accelerating or decelerating quickly when moving to both ends, thereby reducing the time the felt laying machine remains when changing direction at both ends, making the horizontal minute speed of the felt fall almost equal, thereby further ensuring the uniformity of the thickness in the width direction of the molded cotton felt.

The technical ideas used in this application are as follows:

A felt laying device comprising a frame,
The frame is provided with a #1 belt conveyor, a #2 belt conveyor, a felt laying machine, a swinging mechanism, and a felt receiving machine, which are connected in sequence. The #1 belt conveyor is located at the upper front end of the frame and is used to receive the molded single-layer cotton felt and transport it to the #2 belt conveyor. The #2 belt conveyor is located behind and below the #1 belt conveyor and is used to receive the single-layer cotton felt dropped from the #1 belt conveyor and transport it to the #2 belt laying machine. The #2 belt conveyor is hinged to the frame via a first hinge sheet. An air spring is provided at the bottom rear end of the #2 belt conveyor to elastically support its up and down movement. The upper end of the felt laying machine is hinged to the rear end of the #2 belt conveyor and moves up and down together with the #2 belt conveyor. The lower end of the felt laying machine is connected to the swinging mechanism and is driven by the swinging mechanism to swing back and forth above the felt receiving machine along the horizontal direction, and the swinging motion stacks the single-layer cotton felt dropped from the #2 belt conveyor into a multi-layer cotton felt.

Furthermore, the felt laying machine comprises a felt laying machine frame, and a first felt laying conveyor belt conveyor and a second felt laying conveyor belt conveyor attached to the felt laying machine frame, the first felt laying conveyor belt conveyor comprises a driving roll A, a driven roll A, a conveyor belt A, and a drive motor A, the second felt laying conveyor belt conveyor comprises a driving roll B, a driven roll B, a conveyor belt B, and a drive motor B, the driving roll A and the driving roll B are provided at the upper end of the felt laying machine frame, the driven roll A and the driven roll B are provided at the lower end of the felt laying machine frame, the conveyor belt A and the conveyor belt B are provided in parallel, a conveying passage through which a single layer of cotton felt passes is formed between the opposing sides of the two belts, and the conveyor belt A and the conveyor belt B rotate synchronously in opposite directions.

Furthermore, the upper end of the felt layer frame is connected to the 2# belt conveyor via a second hinge sheet, the second hinge sheet has a second hinge shaft and a second bearing stand, the second hinge shaft passes through the felt layer frame and is rotatably mounted on the second bearing stand, the second bearing stand is fixedly attached to the felt layer frame, the second hinge shaft is also the rotation shaft of the driven roll of the 2# belt conveyor, the driving roll A is located directly below the second hinge shaft, and the driving roll B is higher than the second hinge shaft.

Furthermore, the swing mechanism comprises a two-shaft servo motor and a timing belt transmission mechanism provided in parallel and symmetrical relation on both sides of the servo motor, the timing belt transmission mechanism comprising a driving belt pulley, a driven belt pulley, a reciprocating timing belt for connecting the driving belt pulley and the driven belt pulley, a linear guide provided within the timing belt loop, and a slider assembly slidably provided on the linear guide, the slider assembly being fixed to the timing belt and moving synchronously with the timing belt, the driving belt pulley being fixedly connected to the output shaft of the servo motor via a coupling, and the slider assembly being hinged to the lower end of the felt laying machine.

Furthermore, the slider assembly includes an upper pressure plate, a lower pressure plate, and a slider holder, the upper pressure plate is hingedly connected to the felt laying machine frame of the felt laying machine via a bolt, the lower pressure plate is fixedly connected to the slider holder via a bolt, and the slider holder is slidably connected to the linear guide, the upper pressure plate and the lower pressure plate are fixedly connected via a bolt that passes through both the left and right ends of the upper pressure plate and the lower pressure plate, and a timing belt is interposed between the center of the upper pressure plate and the lower pressure plate.

Furthermore, a third hinge sheet is provided at the lower end of the felt layer frame, the third hinge sheet having a third bearing stand and a third hinge shaft rotatably mounted on the third bearing stand, the third hinge shaft being fixedly connected to the felt layer frame, and the upper pressure plate being fixedly connected to the third bearing stand via a bolt.

Furthermore, belt conveyor #1 is inclined from top to bottom, and belt conveyor #2 is inclined from bottom to top, and in the stationary state, the felt laying machine is vertically installed, and the rocking mechanism is horizontally installed above the felt receiving machine.

The beneficial effects of this application are as follows:

Analysis of conventional felt laying machines has revealed two inherent structural defects. The first defect is that the distance the cotton felt falls to the horizontal line is long when it swings to both ends and short when it swings to the midpoint. The second defect is that the horizontal minute speed at which the felt falls is the slowest when the pendulum swings to both ends, while the horizontal minute speed is the fastest when it swings to the midpoint. The combination of these two factors results in a technical defect in which the width of the laid, molded multi-layered cotton felt is thin in the middle and thick at both ends.

In this application, the bottom of the 2# belt conveyor is hinged to the frame, the rear end is hinged to the upper end of the felt laying machine, the lower end of the felt laying machine is connected to the swinging mechanism, and the swinging mechanism is driven to swing back and forth above the felt receiving machine in the horizontal direction. This eliminates the vertical motion component generated when the felt laying machine swings in an arc, and only the horizontal motion component remains, so that the felt drop point at the lower end of the felt laying machine when laying the felt is in a straight line and is consistent with the vertical height of the horizontal felt receiving mechanism throughout the entire felt laying process. In addition, the servo motor's high-speed direction change characteristic allows the reaction speed of the felt laying mechanism when changing direction to be high, so that the felt laying machine performs a felt laying operation at a nearly constant speed and height to a large extent, thereby improving the uniformity of density in the width direction of the stacked cotton felt, and also improving the appearance quality and strength of the final product.

FIG. 2 is a schematic diagram of the three-dimensional structure of the felt laying device of the present application. FIG. 2 is a plan side view of FIG. 1; FIG. 2 is a schematic diagram showing the structure of the #2 belt conveyor of the present application. FIG. 2 is a schematic structural diagram of the felt laying machine of the present application. FIG. 2 is a structural schematic diagram of a rocking mechanism according to the present application. 6 is a cross-sectional view taken along the line BB in FIG. 5. 1 is a structural schematic diagram of a slider assembly of the present application; FIG. 2 is a diagram showing the operating principle of the felt laying device of the present application.

In order to better understand the present application, the contents of the present application will be further explained below with reference to examples, but the contents of the present application are not limited to the following examples.

Example 1
As shown in Figures 1 and 2, this embodiment provides a felt laying device including a frame 1 on which a #1 belt conveyor 10, a #2 belt conveyor 20, a felt laying machine 30, a rocking mechanism 40, and a felt receiving machine 50 are sequentially connected.

The #1 belt conveyor 10 is located at the upper front end of the frame 1 and is used to receive the molded single layer of cotton felt and transport it to the #2 belt conveyor 20. The #2 belt conveyor 20 is located at the rear lower end of the #1 belt conveyor 20 and is used to receive the single layer of cotton felt that has fallen from the #1 belt conveyor 10 and transport it to the felt laying machine 30. The #2 belt conveyor 20 is hinged to the frame 1 via a first hinge sheet 22. An air spring 23 is provided at the bottom rear end of the #2 belt conveyor 20 to elastically support its up and down movement. The upper end of the felt laying machine 30 is hinged to the rear end of the #2 belt conveyor 20 and moves up and down together with the #2 belt conveyor 20. The lower end of the felt laying machine 30 is connected to the swinging mechanism 40 and is driven by the swinging mechanism 40 to swing back and forth above the felt receiving machine 50 along the horizontal direction, stacking the single layer of cotton felt that has fallen from the #2 belt conveyor 20 into a multi-layer cotton felt by the swinging movement. The structure and connections of each mechanism are explained in detail below.

The bracket 1 is a multi-layered rectangular frame consisting of several beams and support legs made of shaped steel. For example, in this embodiment, the bracket 1 includes a first layer of rectangular frames 11 for mounting the #1 belt conveyor and the #2 belt conveyor, a second layer of rectangular frames 12 for mounting the felt laying machine 30 and the swinging mechanism 40, and a third layer of rectangular frames 13 for mounting the felt receiving machine 50. The dimensions and structure of the rectangular frames of each layer are designed differently depending on the mounting requirements.

The #1 belt conveyor is a conventional belt conveyor, and is mainly composed of a frame, a conveyor belt, an idler roller, a roll, a tensioning device, a transmission device, etc. The #1 belt conveyor 10 is fixedly attached to the rectangular frame 11 of the first layer of the frame 1 via a bracket.

As shown in FIG. 3, the 2# belt conveyor has one belt conveyor body 21, which is a conventional normal belt transport conveyor and is mainly composed of a frame, a transport belt, an idler roller, a roll, a tensioning device, a transmission device, etc. A first hinge sheet 22 is provided in the center of the bottom of the belt conveyor body 21, and the belt conveyor body 21 is rotatably connected to the frame 1 via the first hinge sheet 22. The first hinge sheet 22 is a conventional technology, and its base is fixedly attached to the first layer rectangular frame 11 of the frame 1 via a bolt, and its hinge shaft passes through the bracket of the belt conveyor body 21 and is fixedly connected to the bracket of the belt conveyor body 21 via a locking device. An air spring 23 is provided at the bottom rear end of the belt conveyor body 21 to elastically support its vertical movement. The air spring 23 is a conventional technology, and its lower end is fixedly attached to the rectangular frame 11 of the first layer, and its upper end is fixedly attached to the bracket of the belt conveyor body 21. Two hinge brackets 241 fixed to the bracket of the belt conveyor body 21 are symmetrically provided on both sides of the rear end of the belt conveyor body 21. The hinge bracket 241 is provided with a hinge shaft 242 that penetrates the felt laying machine frame 31 and is rotatably attached to the bearing stand 243, and the bearing stand 243 is fixedly attached to the felt laying machine frame 31 via a bolt. The hinge shaft 242 is also the rotation shaft of the driven roll of the belt conveyor body 21. The hinge bracket 241, the hinge shaft 242, and the bearing stand 243 constitute the second hinge sheet 24 of the 2# belt conveyor.

As shown in FIG. 4, the felt laying machine 30 comprises a felt laying machine frame 31, and a first felt laying conveying belt conveyor and a second felt laying conveying belt conveyor attached to the felt laying machine frame 31. The felt laying machine frame 31 is hingedly connected to the 2# belt conveyor via a second hinge sheet 24. The first felt laying conveying belt conveyor and the second felt laying conveying belt conveyor have the same structure, and both are conventional normal belt conveyor conveyors. The first felt-laying conveying belt conveyor comprises a driving roll A33, a driven roll A35, a conveying belt A37, and a driving motor A (not shown), and the driving motor A drives the driving roll A33 to rotate the conveying belt A37. The second felt-laying conveying belt conveyor comprises a driving roll B32, a driven roll B34, a conveying belt B36, and a driving motor B (not shown), and the driving motor B drives the driving roll B32 to rotate the conveying belt B36. The driving roll A33 and the driving roll B32 are provided at the upper end of the felt laying machine frame 31, and the driven roll A35 and the driven roll B34 are provided at the lower end of the felt laying machine frame 31. The conveying belt A37 and the conveying belt B36 are provided in parallel, and a conveying passage 38 through which a single layer of cotton felt passes is formed between the opposing sides of the two belts. Conveyor belt A37 and conveyor belt B36 rotate synchronously in opposite directions.

Preferably, the driving roll A33 is located directly below the hinge shaft 242, and the driving roll B32 is located above the side of the hinge shaft 242, and the driving roll B32 is higher than the driving roll A33, so that the upper end of the conveyor belt B36 exceeds the conveyor belt B36 to form a baffle, preventing the cotton felt from exceeding the conveyor passage 38 when it falls from the 2# belt conveyor.

A third hinge sheet 39 is provided at the lower end of the felt layer frame 31. The third hinge sheet 39 is a conventional technology and includes a third bearing stand 391 and a third hinge shaft 392 rotatably mounted on the third bearing stand 391. The third hinge shaft 392 is fixedly connected to the felt layer frame 31.

As shown in Figures 5 to 7, the swing mechanism 40 is attached to the rectangular frame 12 of the second layer of the frame 1, and includes one two-axis servo motor 41 and two identically structured timing belt transmission mechanisms arranged in parallel and symmetrical relation on both sides of the servo motor 41. The timing belt transmission mechanism is a conventional technology, and includes a main belt pulley 42, a driven belt pulley 43, a reciprocating timing belt 44 for connecting the main belt pulley 42 and the driven belt pulley 43, a linear guide 45 arranged within the belt loop of the timing belt 44, and a linear guide 45 arranged to slide on the linear guide 45. and a slider assembly 46, the slider assembly 46 including an upper pressure plate 461, a lower pressure plate 462, and a slider holder 463, the upper pressure plate 461 being fixedly connected to the third bearing stand 391 via a bolt, the lower pressure plate 462 being fixedly connected to the slider holder 463 via a bolt, the slider holder 463 being slidably connected to the linear guide 45, the upper pressure plate 461 and the lower pressure plate 462 being fixedly connected to each other via a bolt passing through both the left and right ends of the upper pressure plate and the lower pressure plate, and the timing belt 44 being interposed between the central portions of the upper pressure plate 461 and the lower pressure plate 462. In order to more reliably clamp and fix the timing belt 44, it is preferable that the surfaces of the upper pressure plate 461 and the lower pressure plate 462 that come into contact with the timing belt be toothed surfaces. The two-axis servo motor 41 is connected to two drive belt pulleys 42 via a coupling 47, which allows the rotational force to be transmitted simultaneously to the timing belt transmission mechanism, ensuring that the rotation of both sides is synchronized. This allows the slider assembly 46, which is fixed to the timing belt 44, to move back and forth synchronously within a specified range, and the arrangement of the linear guide 45 improves the support force of the slider and ensures the linearity of the slider movement.

The felt receiving machine 50 is attached to the rectangular frame 13 of the third layer of the frame 1 and is equipped with an inclined belt conveyor 51 and a horizontal belt conveyor 52. The inclined belt conveyor 51 is provided directly below the swinging mechanism 40 and is used to receive a single layer of cotton felt dropped from the felt laying machine 30 and convey the laminated and formed multi-layered cotton felt to the horizontal belt conveyor 52. The horizontal belt conveyor 52 is connected to the discharge end of the inclined belt conveyor 51 and is used to convey the multi-layered cotton felt to the next unit.

Preferably, the #1 belt conveyor 10 is inclined downward from top to bottom, and the #2 belt conveyor 20 is inclined upward from bottom to top, and in a stationary state, the felt laying machine 30 extends downward along the vertical direction, and the rocking mechanism 40 is horizontally installed below the felt receiving machine 50. By using such a design plan, it is possible to realize a change from horizontal to vertical transportation of cotton felt, and the felt laying device of the present application can have a more compact structure and be easier to operate.

The operation of this application is as follows:

As shown in FIG. 8, in the stationary state, the felt laying machine 30 is arranged vertically, and in operation, the cotton felt 2 produced on the production line is transported from the 1# belt conveyor 10 to the 2# belt conveyor 20 and then transported to the felt laying machine 30, the two-axis servo motor 41 rotates forward and backward, the two drive belt pulleys 42 drive the two timing belts 44 to move horizontally back and forth, the timing belts 44 slide the slider assembly 46 back and forth on the linear guide 45, and the slider assembly 46 moves the lower end of the felt laying machine 30 back and forth horizontally above the felt receiving machine 50 around the second hinge sheet 24 of the 2# belt conveyor, forming felt in layers. Because the upper end of the felt laying machine 30 is hinged to the 2# belt conveyor, the 2# belt conveyor swings up and down around the first hinge sheet 22 during the reciprocating motion of the felt laying machine 30, causing vertical displacement. This displacement is compensated for by the air spring 23, so that the movement trajectory of the lower end of the felt laying machine 30 is always located on the same horizontal line, and the vertical distance between this horizontal line and the horizontal felt receiving mechanism 50 is also equal.

The above content is merely a preferred embodiment of the present application, and those skilled in the art may make many improvements and modifications without departing from the principles of the present application, and these improvements and modifications should also be considered to be within the scope of protection of the present application.

Claims (7)

A felt laying device comprising a frame,
The frame is provided with a #1 belt conveyor, a #2 belt conveyor, a felt laying machine, a rocking mechanism, and a felt receiving machine, which are connected in sequence;
The 1# belt conveyor is located at the upper front end of the frame, and is for receiving the molded single layer cotton felt and transporting it to the 2# belt conveyor;
The #2 belt conveyor is located below and behind the #1 belt conveyor, and is used to receive the single layer of cotton felt dropped from the #1 belt conveyor and transport it to the felt laying machine. The #2 belt conveyor is hinged to the frame via a first hinge sheet, and an air spring is provided at the bottom rear end of the #2 belt conveyor to elastically support its vertical movement.
The felt laying device is characterized in that its upper end is hinged to the rear end of the #2 belt conveyor and moves up and down together with the #2 belt conveyor, its lower end is connected to a swinging mechanism and is driven by the swinging mechanism to swing back and forth above the felt receiving machine in the horizontal direction, and the swinging motion stacks the single layer of cotton felt dropped from the #2 belt conveyor into multiple layers of cotton felt. The felt laying machine comprises a felt laying machine frame, and a first felt laying conveyor belt and a second felt laying conveyor belt attached to the felt laying machine frame, the first felt laying conveyor belt comprises a driving roller A, a driven roller A, a conveyor belt A, and a drive motor A, the second felt laying conveyor belt comprises a driving roller B, a driven roller B, a conveyor belt B, and a drive motor B, the driving roller A and the driving roller B are provided at the upper end of the felt laying machine frame, the driven roller A and the driven roller B are provided at the lower end of the felt laying machine frame, the conveyor belt A and the conveyor belt B are provided in parallel, a conveying passage through which a single layer of cotton felt passes is formed between the opposing sides of the two belts, and the conveyor belt A and the conveyor belt B rotate synchronously in opposite directions. The felt laying device according to claim 1. The upper end of the felt layer frame is connected to the #2 belt conveyor via a second hinge sheet, the second hinge sheet has a second hinge shaft and a second bearing stand, the second hinge shaft passes through the felt layer frame and is rotatably mounted in the second bearing stand, the second bearing stand is fixedly attached to the felt layer frame, the second hinge shaft is also the rotation shaft of the driven roller of the #2 belt conveyor, the driving roller A is located directly below the second hinge shaft, and the driving roller B is higher than the second hinge shaft. A felt layering device as described in claim 2. The felt laying device according to claim 1, characterized in that the swing mechanism comprises a two-shaft servo motor and a timing belt transmission mechanism provided in parallel and symmetrical on both sides of the servo motor, the timing belt transmission mechanism comprises a driving belt pulley, a driven belt pulley, a reciprocating timing belt for connecting the driving belt pulley and the driven belt pulley, a linear guide provided within the timing belt ring, and a slider assembly slidably provided on the linear guide, the slider assembly is fixed to the timing belt and moves synchronously with the timing belt, the driving belt pulley is fixedly connected to the output shaft of the servo motor via a coupling, and the slider assembly is hinged to the lower end of the felt laying machine. The slider assembly comprises an upper pressure plate, a lower pressure plate, and a slider holder, the upper pressure plate is hinged to the felt laying machine frame of the felt laying machine via a bolt, the lower pressure plate is fixedly connected to the slider holder via a bolt, the slider holder is slidably connected to the linear guide, the upper pressure plate and the lower pressure plate are fixedly connected via a bolt that passes through both the left and right ends of the upper pressure plate and the lower pressure plate, and a timing belt is interposed between the middle parts of the upper pressure plate and the lower pressure plate. The felt laying device according to claim 4. The felt laying device according to claim 5, characterized in that a third hinge seat is provided at the lower end of the felt laying machine frame, the third hinge seat comprises a third bearing stand and a third hinge shaft rotatably provided within the third bearing stand, the third hinge shaft is fixedly connected to the felt laying machine frame, and the upper pressure plate is fixedly connected to the third bearing stand via a bolt. The felt laying device according to claim 1, characterized in that the 1# belt conveyor is provided with an incline from top to bottom, the 2# belt conveyor is provided with an incline from bottom to top, and in a stationary state, the felt laying machine is provided vertically, and the rocking mechanism is provided horizontally above the felt receiving machine.

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