Rapid positioning device of line suction trolley for artificial leather production

Abstract

A quick positioning device of a grain suction trolley for artificial leather production comprises two parallel horizontal rails, a pneumatic lifting positioning assembly and an in-place monitoring anti-collision assembly, the two horizontal rails are horizontally arranged on the ground on the rear side of a foaming furnace in the left-right direction, and the grain suction trolley and the foaming furnace coincide along the center line in the front-back direction. The pneumatic lifting positioning assembly is arranged between the front side of the grain suction trolley and the rear side of the foaming furnace, and the two sets of in-place monitoring anti-collision assemblies are arranged at the left ends of the two horizontal rails correspondingly and are adjacent to wheels on the left side of the grain suction trolley. After the proximity switch is adopted to monitor that the grain suction trolley moves in place, the pneumatic lifting positioning assembly is instructed to quickly move downwards to position the grain suction trolley, safety, reliability, convenience and rapidness are achieved, the function of center positioning of the grain suction trolley is achieved, the function of pulling to prevent rollover is achieved, and therefore production efficiency is improved, and production cost is reduced. And the quality of the artificial leather pattern suction process is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of artificial leather production technology, specifically relating to a quick positioning device for an artificial leather production suction trolley. Background Technology

[0002] In the foaming production process of artificial leather, a texture-absorbing roller is used to create full patterns on the surface of the artificial leather. The texture-absorbing roller is mounted on a texture-absorbing trolley, which has four wheels installed under its bottom frame. It can be pushed or pulled out along two parallel horizontal tracks fixed to the ground. The horizontal tracks are set along the left and right direction and are located behind the foaming furnace, so that the texture-absorbing trolley is parallel to the foaming furnace. In addition, after the wheels of the texture-absorbing trolley are pushed into place along the horizontal tracks, they need to be positioned to ensure that the center line of the texture-absorbing trolley coincides with the center line of the foaming furnace. Currently, the following method is used to center the texture-absorbing trolley: after the texture-absorbing trolley moves into place along the horizontal tracks, its position needs to be repeatedly adjusted, which is quite cumbersome. A wedge-shaped iron block is placed within the angle between the wheels and the ground to prevent the texture-absorbing trolley from moving left and right during production. However, during production, the wedge-shaped iron block, due to the lack of positioning, will move, causing the texture-absorbing trolley to shift on the horizontal tracks, which in turn leads to problems in the texture-absorbing process of artificial leather, and in severe cases, results in batches of defective products. When it is necessary to pull the texturing trolley out of the horizontal track, the inclined iron block must first be removed, and then the trolley must be pulled out of the horizontal track. The texturing roller on the texturing trolley must be replaced outside the foaming furnace production line.

[0003] The patent announcement number CN205653609 U discloses a suction roller anti-tipping device, which mainly prevents the suction roller from being overturned by the pull between the first angle iron and the second angle iron. However, this patented technical solution does not have any innovation in the positioning of the horizontal track direction (left and right direction). Utility Model Content

[0004] In order to solve the above-mentioned technical problems in the prior art, this utility model provides a rapid positioning device for a texture-absorbing trolley used in artificial leather production that is accurate in positioning, requires less manual labor, is stable and reliable, and can prevent tipping.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a rapid positioning device for a texture-absorbing trolley used in artificial leather production, comprising horizontal tracks, a pneumatic lifting and positioning component, and a positioning monitoring and anti-collision component. Two horizontal tracks are arranged in parallel, and the two horizontal tracks are horizontally arranged on the ground behind the foaming furnace in the left-right direction. The two front wheels and the two rear wheels of the bottom of the texture-absorbing trolley are respectively rolled and connected in the front and rear horizontal tracks. The center lines of the texture-absorbing trolley and the foaming furnace in the front-back direction coincide. The pneumatic lifting and positioning component is arranged between the front side of the texture-absorbing trolley and the rear side of the foaming furnace. Two sets of positioning monitoring and anti-collision components are provided, and the two sets of positioning monitoring and anti-collision components are respectively arranged at the left end of the two horizontal tracks and adjacent to the left wheel of the texture-absorbing trolley.

[0006] Two sets of pneumatic lifting and positioning components are provided, which are symmetrical about the center line of the foaming furnace. Each set of pneumatic lifting and positioning components includes a support, a vertical rail, a sliding positioning component, and an L-shaped positioning block. The support and the vertical rail are fixedly installed on the lower rear side of the foaming furnace. The support is located above the vertical rail and has a vertically arranged cylinder on it. The lower end of the piston rod of the cylinder is connected to the top of the sliding positioning component by a hinge. The rear end of the L-shaped positioning block is fixedly connected to the lower front side of the suction trolley. The front end of the sliding positioning component is slidably connected in the vertical rail, and the lower rear end of the sliding positioning component is positioned and engaged with the upper part of the L-shaped positioning block.

[0007] The sliding positioning assembly includes a horizontally arranged horizontal plate, a vertical locking plate on the bottom rear end of the horizontal plate, a front side of the vertical locking plate contacting the upper rear side of the L-shaped positioning block, and the contact surface between the front side of the vertical locking plate and the upper rear side of the L-shaped positioning block is an inclined surface that slopes backward from high to low. A V-shaped positioning block is located on the bottom surface of the horizontal plate in front of the vertical locking plate. The interior of the vertical track is provided with a dovetail groove that is open at the top and bottom, open at the rear end, and has a dovetail-shaped cross-section. A dovetail slider is provided at the front end of the horizontal plate that extends into and slides within the dovetail groove.

[0008] The upper middle part of the L-shaped positioning block has a V-shaped groove that is open at the front and back and open at the top. The V-shaped positioning block and the V-shaped groove are corresponding to each other and are both isosceles trapezoids that are narrow at the bottom and wide at the top. The V-shaped positioning block extends into the V-shaped groove for assembly.

[0009] The horizontal track uses two parallel angle steels arranged back-to-back. The horizontal sections of the angle steels are fixed to the ground with expansion bolts. Each positioning monitoring and anti-collision assembly includes a rectangular fixed post. The fixed post is located between the two angle steels and welded to the angle steels on both the front and back sides. The fixed post has two threaded holes that are open to both sides. The two threaded holes are arranged vertically and vertically. A proximity switch is threaded into the upper threaded hole. The sensing head of the proximity switch is located on the right side of the fixed post. A support tube is threaded into the lower threaded hole. A limit block is placed on the ground between the two angle steels, which contacts the right end of the support tube. The limit block is located on the right side of the sensing head. A limit rod that extends into the support tube is fixedly connected to the left end of the limit block. The right end face of the limit block is an arc-shaped concave surface that matches the outer circle of the wheel. The signal output terminal of the proximity switch is connected to a PLC controller through a signal line. The signal output terminal of the PLC controller is connected to a solenoid valve on the air circuit connected to the cylinder through a control line.

[0010] Each horizontal track is connected to a guide rail at its right end, which is also made of two angle steels. The distance between the two angle steels of each guide rail gradually increases from left to right.

[0011] The horizontal plate and the vertical plate, as well as the horizontal plate and the dovetail slider, are fixedly connected as one piece by welding; the horizontal plate is fixedly connected to the V-shaped positioning block by countersunk bolts running from top to bottom; the L-shaped positioning block is made of two horizontal and vertical steel plates welded together.

[0012] The support and vertical rail are fixed to the lower rear side of the foaming furnace by welding. The rear end of the L-shaped positioning block is fixed to the lower front side of the suction trolley by welding. The cylinder body is fixed to the support by bolts.

[0013] Using the above technical solution, the specific working process of this utility model is as follows: The worker pushes the four wheels of the texturing trolley into the horizontal track along the two guide tracks laid on the workshop floor, and continues to slowly push the texturing trolley to the left until it is directly behind the foaming furnace. When the induction heads of the two proximity switches detect the two wheels on the right side of the texturing trolley, they send a signal to the PLC controller. After receiving the signal, the PLC sends an opening command to the solenoid valve in the air circuit connected to the cylinder. The solenoid valve opens, compressed air is injected into the cylinder, the piston rod of the cylinder extends, driving the horizontal plate to move downwards. The dovetail slider at the front end of the horizontal plate moves downwards within the dovetail of the vertical track. As the slides downwards within the groove, the V-shaped positioning block on the bottom surface of the horizontal plate and the vertical clamping plate at the rear end both move downwards. The V-shaped positioning block extends into the V-shaped groove of the L-shaped positioning block, and the front side of the vertical clamping plate contacts the upper rear side of the L-shaped positioning block. Since both the V-shaped positioning block and the V-shaped groove are isosceles trapezoids, the dovetail slider at the front end of the V-shaped positioning block determines the position of the V-shaped positioning block. During the downward movement of the V-shaped positioning block, it can drive the L-shaped positioning block to make slight adjustments in the left and right directions, thereby ensuring that the center line of the texturing trolley coincides with the center line of the foaming furnace. A snap-fit ​​and pull structure is formed between the vertical clamping plate and the L-shaped positioning block, thereby preventing the texturing trolley from tipping over due to backward force.

[0014] When the texturing trolley needs to be pulled out of the working position, the piston rod of the cylinder retracts, causing the horizontal plate to move upward. The dovetail slider slides upward in the dovetail groove, the V-shaped positioning block disengages upward from the V-shaped groove of the L-shaped positioning block, and the vertical clamping plate also disengages upward from the upper right inclined surface of the L-shaped positioning block. Then the worker pulls the texturing trolley to the left out of the horizontal track.

[0015] The vertical track is connected to the dovetail slider at the front end of the horizontal plate by a dovetail groove. This ensures that the V-shaped positioning block can position the L-shaped positioning block in the left and right directions by cooperating with the V-shaped groove, and also ensures that the vertical clamping plate can clamp and pull the L-shaped positioning block in the front and back directions; at the same time, it avoids the cylinder being subjected to force in the horizontal direction.

[0016] The left-right positioning uses a V-shaped positioning block that is wider at the top and narrower at the bottom, which engages with the V-groove of an L-shaped positioning block. The width of the upper end of the V-groove is greater than that of the lower end of the V-shaped positioning block. The reference line preset on the lower rear side of the texturing trolley does not need to be precisely aligned with the center line of the foaming furnace on the ground before the cylinder can be activated. This facilitates the downward movement of the V-shaped positioning block into the V-groove. Through the sliding engagement of the left and right inclined surfaces of the V-shaped positioning block and the left and right inclined surfaces of the V-groove, the texturing trolley can be finely adjusted left and right by a small distance on the horizontal track, thereby achieving precise center positioning of the texturing trolley.

[0017] The contact surface between the front side of the vertical clamping plate and the upper rear side of the L-shaped positioning block is an inclined surface, which slopes backward from high to low. This structure allows the front side of the vertical clamping plate to make good contact with the upper rear side of the L-shaped positioning block after the vertical clamping plate moves downward into place, improving the reliability of the clamping and pulling anti-tipping mechanism.

[0018] The V-shaped positioning block is fixedly connected to the bottom surface of the horizontal plate by countersunk bolts (with at least two bolts spaced at the front and back), which makes it easy to install and easy to process the V-shaped positioning block.

[0019] The main function of the positioning monitoring and anti-collision component is to sense when the texture-absorbing trolley moves into position (the center lines of the texture-absorbing trolley and the foaming furnace coincide in the front-to-back direction). Simultaneously, it sets anti-collision limit blocks to prevent damage to the proximity switch caused by the texture-absorbing trolley moving to the right in the event of a malfunction in any component such as the PLC controller, proximity switch (non-contact switch), solenoid valve, cylinder, air circuit, or control circuit. When initially setting the center line alignment between the texture-absorbing trolley and the foaming furnace, precise adjustment is achieved by rotating the proximity switch to extend the fixed column to the right. When the proximity switch is damaged and needs replacement, a new proximity switch is installed, and the rotation adjustment is repeated. The position of the limiting block is adjusted and positioned by rotating the support tube. The left end of the limiting block is fixedly connected to the limiting rod, which extends into the support tube. This not only ensures that the limiting block does not need to rotate with the horizontal track when the support tube is rotated, but also ensures the stability of the limiting block when it is hit by a wheel, since the limiting rod is inserted into the support tube. The right side of the limiting block has an arc-shaped concave surface that matches the outer circle of the wheel, so that the force on the limiting block is balanced after being hit, and the wheel will not be damaged.

[0020] The distance between the two angle steels of the guide rail gradually increases from left to right (i.e., the width of the right end of the guide rail is more than twice the width of the wheel), which facilitates pushing the wheel of the suction trolley into the guide rail from left to right. Guided by the guide rail, the wheel can enter the horizontal track more easily and quickly.

[0021] In summary, this utility model is scientifically sound, easy to operate, and uses a proximity switch to monitor the movement of the texturing trolley into position. After the trolley is in place, the pneumatic lifting and positioning component is instructed to move downwards quickly to position the texturing trolley. It is safe, reliable, convenient, and fast. It not only has the function of centering the texturing trolley, but also has the function of pulling to prevent tipping, thereby improving production efficiency and ensuring the quality of the artificial leather texturing process. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the right-side elevation structure of this utility model;

[0023] Figure 2 This is a top view of the structure of this utility model;

[0024] Figure 3 yes Figure 1 Enlarged view of the pneumatic lifting and positioning assembly;

[0025] Figure 4 yes Figure 2 Top view after removing the support and cylinder at point A in the middle;

[0026] Figure 5 This is a schematic diagram showing the connection between the horizontal plate, the vertical plate, and the V-shaped positioning block;

[0027] Figure 6 yes Figure 5 The left view;

[0028] Figure 7 yes Figure 3 Enlarged view of the L-shaped positioning block;

[0029] Figure 8 yes Figure 7 The left view;

[0030] Figure 9 yes Figure 2 A schematic diagram of the front elevation structure of the mid-position monitoring anti-collision component. Detailed Implementation

[0031] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0032] like Figures 1-9 As shown, this utility model discloses a rapid positioning device for a texture-absorbing trolley used in artificial leather production, comprising a horizontal track 15, a pneumatic lifting and positioning component 16, and a positioning monitoring and anti-collision component 17. Two horizontal tracks 15 are arranged in parallel, and the two horizontal tracks 15 are horizontally arranged on the ground behind the foaming furnace 13 in the left-right direction. The two front wheels and two rear wheels 18 of the bottom of the texture-absorbing trolley 5 are respectively rolled and connected in the front and rear horizontal tracks 15. The center lines of the texture-absorbing trolley 5 and the foaming furnace 13 coincide in the front-back direction. The pneumatic lifting and positioning component 16 is arranged between the front side of the texture-absorbing trolley 5 and the rear side of the foaming furnace 13. Two sets of positioning monitoring and anti-collision components 17 are provided, and the two sets of positioning monitoring and anti-collision components 17 are respectively arranged at the left end of the two horizontal tracks 15 and adjacent to the left wheel 18 of the texture-absorbing trolley 5.

[0033] Two sets of pneumatic lifting and positioning components 16 are provided. The two sets of pneumatic lifting and positioning components 16 are symmetrical about the center line of the foaming furnace 13. Each set of pneumatic lifting and positioning components 16 includes a support 14, a vertical rail 1, a sliding positioning component 27 and an L-shaped positioning block 2. The support 14 and the vertical rail 1 are fixedly installed on the lower rear side of the foaming furnace 13. The support 14 is located above the vertical rail 1. A vertically arranged cylinder 3 is provided on the support 14. The lower end of the piston rod of the cylinder 3 is connected to the top of the sliding positioning component 27 through a hinge 4. The rear end of the L-shaped positioning block 2 is fixedly connected to the lower front side of the suction trolley 5. The front end of the sliding positioning component 27 is slidably connected in the vertical rail 1. The lower rear end of the sliding positioning component 27 is positioned and engaged with the upper part of the L-shaped positioning block 2.

[0034] The sliding positioning assembly 27 includes a horizontally arranged horizontal plate 6, a vertical clamping plate 7 on the bottom rear end of the horizontal plate 6, the front side of the vertical clamping plate 7 in contact with the upper rear side of the L-shaped positioning block 2, the contact surface between the front side of the vertical clamping plate 7 and the upper rear side of the L-shaped positioning block 2 is an inclined surface 11, which slopes backward from high to low, the bottom surface of the horizontal plate 6 is provided with a V-shaped positioning block 8 located in front of the vertical clamping plate 7, the interior of the vertical track 1 is provided with a dovetail slide groove that is open at the top and bottom, open at the rear end, and has a dovetail-shaped cross-section, and the front end of the horizontal plate 6 is provided with a dovetail slider 9 that extends into and slides in the dovetail slide groove.

[0035] The upper middle part of the L-shaped positioning block 2 has a V-shaped groove 10 that is open at the front and back and open at the top. The V-shaped positioning block 8 and the V-shaped groove 10 are corresponding vertically and are both isosceles trapezoids that are narrow at the bottom and wide at the top. The V-shaped positioning block 8 extends into the V-shaped groove 10.

[0036] The horizontal track 15 uses two parallel angle steels arranged back-to-back. The horizontal sections of the angle steels are fixed to the ground with expansion bolts. Each positioning monitoring anti-collision assembly 17 includes a rectangular fixed post 19. The fixed post 19 is located between the two angle steels and is welded to the angle steels on both the front and back sides. The fixed post 19 has two threaded holes that are both open to the left and right. The two threaded holes are arranged vertically and horizontally. The upper threaded hole is threaded with a proximity switch 20. The sensing head 21 of the proximity switch 20 is located on the right side of the fixed post 19. The lower threaded hole is threaded with a proximity switch 20. A support tube 22 is connected to the internal thread of the perforated hole. A limiting block 23 is placed on the ground between the two angle steels, which contacts the right end of the support tube 22. The limiting block 23 is located to the right of the sensing head 21. A limiting rod 24 extending into the support tube 22 is fixedly connected to the left end of the limiting block 23. The right end face of the limiting block 23 is an arc-shaped concave surface 25 that matches the outer circle of the wheel 18. The signal output terminal of the proximity switch 20 is connected to a PLC controller through a signal line. The signal output terminal of the PLC controller is connected to a solenoid valve on the air circuit connected to the cylinder 3 through a control line.

[0037] Each horizontal track 15 is connected to a guide track 26, which is also made of two angle steels, at the right end. The distance between the two angle steels of each guide track 26 gradually increases from left to right.

[0038] The horizontal plate 6 and the vertical clamping plate 7, and the horizontal plate 6 and the dovetail slider 9 are fixedly connected as one piece by welding; the horizontal plate 6 is fixedly connected as one piece to the V-shaped positioning block 8 by countersunk bolts 12 running from top to bottom; the L-shaped positioning block 2 is made of two horizontal and vertical steel plates welded together.

[0039] The support 14 and the vertical rail 1 are both fixed to the lower rear side of the foaming furnace 13 by welding. The rear end of the L-shaped positioning block 2 is fixedly connected to the lower front side of the suction trolley 5 by welding. The cylinder body of the cylinder 3 is fixedly connected to the support 14 by bolts.

[0040] The specific working process of this utility model is as follows: The worker pushes the four wheels 18 of the suction trolley 5 along the two guide rails 26 laid on the workshop floor into the horizontal rail 15, and continues to slowly push the suction trolley 5 to the left until it is pushed directly behind the foaming furnace 13. When the sensing heads 21 of the two proximity switches 20 sense the two wheels 18 on the right side of the suction trolley 5, they send a signal to the PLC controller. After receiving the signal, the PLC sends an opening command to the solenoid valve on the air circuit connected to the cylinder 3. The solenoid valve opens, compressed air is injected into the cylinder 3, the piston rod of the cylinder 3 extends, driving the horizontal plate 6 to move downward. The dovetail slider 9 at the front end of the horizontal plate 6 moves downward in the dovetail groove in the vertical rail 1. As the slides, the V-shaped positioning block 8 on the bottom surface of the horizontal plate 6 and the vertical clamping plate 7 at the rear end both move downwards. The V-shaped positioning block 8 extends into the V-shaped groove 10 of the L-shaped positioning block 2. The front side of the vertical clamping plate 7 contacts the upper rear side of the L-shaped positioning block 2. Since both the V-shaped positioning block 8 and the V-shaped groove 10 are isosceles trapezoids, the dovetail slider 9 at the front end of the V-shaped positioning block 8 determines the position of the V-shaped positioning block 8. During the downward movement, the V-shaped positioning block 8 can drive the L-shaped positioning block 2 to make slight adjustments in the left and right directions, thereby ensuring that the center line of the texturing trolley 5 coincides with the center line of the foaming furnace 13. The vertical clamping plate 7 and the L-shaped positioning block 2 form a snap-fit ​​and pull structure, thereby preventing the texturing trolley 5 from being overturned by the backward force.

[0041] When the texturing trolley 5 needs to be pulled out of its working position, the piston rod of cylinder 3 retracts, causing the horizontal plate 6 to move upward. The dovetail slider 9 slides upward within the dovetail groove, the V-shaped positioning block 8 disengages upward from the V-shaped groove 10 of the L-shaped positioning block 2, and the vertical clamping plate 7 also disengages upward from the upper right inclined surface 11 of the L-shaped positioning block 2. Then, the worker pulls the texturing trolley 5 to the left out of the horizontal track 15.

[0042] The vertical track 1 is connected to the dovetail slider 9 at the front end of the horizontal plate 6 by the dovetail groove. This ensures that the V-shaped positioning block 8 can position the L-shaped positioning block 2 in the left and right directions by cooperating with the V-shaped groove 10, and also ensures that the vertical clamping plate 7 can clamp and pull the L-shaped positioning block 2 in the front and back directions; at the same time, it avoids the cylinder 3 from being subjected to force in the horizontal direction.

[0043] The left-right positioning uses a V-shaped positioning block 8 (wider at the top and narrower at the bottom) that engages with the V-shaped groove 10 of the L-shaped positioning block 2. The upper end of the V-shaped groove 10 is wider than the lower end of the V-shaped positioning block 8. The reference line preset on the lower rear side of the texturing trolley 5 does not need to be precisely aligned with the center line of the foaming furnace 13 on the ground before the cylinder 3 can be activated. This facilitates the downward movement of the V-shaped positioning block 8 into the V-shaped groove 10. Through the sliding engagement of the left and right inclined surfaces of the V-shaped positioning block 8 with the left and right inclined surfaces of the V-shaped groove 10, the texturing trolley 5 can be finely adjusted left and right on the horizontal track 15, thereby achieving precise center positioning of the texturing trolley 5.

[0044] The contact surface between the front side of the vertical clamping plate 7 and the upper rear side of the L-shaped positioning block 2 is an inclined surface, which slopes backward from high to low. This structure allows the vertical clamping plate 7 to make good contact with the upper rear side of the L-shaped positioning block 2 after it moves downward into place, improving the reliability of the clamping and pulling anti-rollover mechanism.

[0045] V-shaped positioning blocks 8 are fixedly connected to the bottom surface of the horizontal plate 6 by countersunk bolts (with at least two bolts spaced at the front and back), which makes installation convenient and V-shaped positioning blocks 8 easy to process.

[0046] The main function of the positioning monitoring and anti-collision component 17 is to sense when the texture-absorbing carriage 5 moves into position (the center lines of the texture-absorbing carriage 5 and the foaming furnace 13 coincide in the front-to-back direction). Simultaneously, it sets up anti-collision limit blocks 23 to prevent damage to the proximity switch 20 from being struck by a faulty component such as the PLC controller, proximity switch 20 (non-contact switch), solenoid valve, cylinder 3, air circuit, or control circuit. When initially setting the center line alignment between the texture-absorbing carriage 5 and the foaming furnace 13, precise adjustment is achieved by rotating the proximity switch 20 to extend the fixing post 19 to the right. When the proximity switch 20 is damaged and needs replacement, a new proximity switch 20 is installed, and the rotation adjustment is performed again. The position of the limiting block 23 is adjusted and positioned by rotating the support tube 22. The left end of the limiting block 23 is fixedly connected to the limiting rod 24, which extends into the support tube 22. This ensures that the limiting block 23 does not need to rotate with the horizontal track 15 when the support tube 22 is rotated. Furthermore, when the limiting block 23 is impacted by the wheel 18, the limiting rod 24 inserted into the support tube 22 ensures the stability of the limiting block 23. The right side of the limiting block 23 is provided with an arc-shaped concave surface 25 that matches the outer circle of the wheel 18. This ensures that the limiting block 23 is subjected to balanced force after impact and will not damage the wheel 18.

[0047] The distance between the two angle steels of the guide rail 26 gradually increases from left to right (i.e., the width of the right end of the guide rail 26 is more than twice the width of the wheel 18), which facilitates pushing the wheel 18 of the suction trolley 5 into the guide rail 26 from left to right. Under the guidance of the guide rail 26, the wheel 18 can enter the horizontal rail 15 more easily and quickly.

[0048] It is important to note that the PLC controller, solenoid valve, proximity switch 20, cylinder 3, and other components in this utility model are conventional technologies and can be purchased on the market. Their connection and automatic control do not involve new computer programs.

[0049] The above embodiments illustrate the basic principles and features of this utility model. However, the above descriptions are merely preferred embodiments and are not limited to these embodiments. Those skilled in the art, inspired by this patent, can make many modifications and improvements without departing from the spirit and scope of the claims, all of which fall within the protection scope of this utility model. Therefore, the patent and its scope of protection should be determined by the appended claims.

Claims

1. A rapid positioning device for a suction-textured trolley used in artificial leather production, characterized in that: It includes horizontal tracks, a pneumatic lifting and positioning assembly, and a positioning monitoring and anti-collision assembly. Two horizontal tracks are arranged in parallel and are horizontally positioned on the ground behind the foaming furnace in the left-right direction. The two front wheels and two rear wheels of the bottom of the texture-absorbing trolley are respectively connected to the front and rear horizontal tracks. The center lines of the texture-absorbing trolley and the foaming furnace are aligned in the front-back direction. The pneumatic lifting and positioning assembly is located between the front of the texture-absorbing trolley and the rear of the foaming furnace. There are two sets of positioning monitoring and anti-collision assemblies. The two sets of positioning monitoring and anti-collision assemblies are respectively located at the left end of the two horizontal tracks and adjacent to the left wheels of the texture-absorbing trolley.

2. The rapid positioning device for a suction-type trolley used in artificial leather production according to claim 1, characterized in that: Two sets of pneumatic lifting and positioning components are provided, which are symmetrical about the center line of the foaming furnace. Each set of pneumatic lifting and positioning components includes a support, a vertical rail, a sliding positioning component, and an L-shaped positioning block. The support and the vertical rail are fixedly installed on the lower rear side of the foaming furnace. The support is located above the vertical rail and has a vertically arranged cylinder on it. The lower end of the piston rod of the cylinder is connected to the top of the sliding positioning component by a hinge. The rear end of the L-shaped positioning block is fixedly connected to the lower front side of the suction trolley. The front end of the sliding positioning component is slidably connected in the vertical rail, and the lower rear end of the sliding positioning component is positioned and engaged with the upper part of the L-shaped positioning block.

3. The rapid positioning device for a suction-type trolley in artificial leather production according to claim 2, characterized in that: The sliding positioning assembly includes a horizontally arranged horizontal plate, a vertical locking plate on the bottom rear end of the horizontal plate, a front side of the vertical locking plate contacting the upper rear side of the L-shaped positioning block, and the contact surface between the front side of the vertical locking plate and the upper rear side of the L-shaped positioning block is an inclined surface that slopes backward from high to low. A V-shaped positioning block is located on the bottom surface of the horizontal plate in front of the vertical locking plate. The interior of the vertical track is provided with a dovetail groove that is open at the top and bottom, open at the rear end, and has a dovetail-shaped cross-section. A dovetail slider is provided at the front end of the horizontal plate that extends into and slides within the dovetail groove.

4. The rapid positioning device for a suction-type trolley in artificial leather production according to claim 3, characterized in that: The upper middle part of the L-shaped positioning block has a V-shaped groove that is open at the front and back and open at the top. The V-shaped positioning block and the V-shaped groove are corresponding to each other and are both isosceles trapezoids that are narrow at the bottom and wide at the top. The V-shaped positioning block extends into the V-shaped groove for assembly.

5. A rapid positioning device for a texturing trolley used in artificial leather production according to any one of claims 2-4, characterized in that: The horizontal track uses two parallel angle steels arranged back-to-back. The horizontal sections of the angle steels are fixed to the ground with expansion bolts. Each positioning monitoring and anti-collision assembly includes a rectangular fixed post. The fixed post is located between the two angle steels and welded to the angle steels on both the front and back sides. The fixed post has two threaded holes that are open to both sides. The two threaded holes are arranged vertically and vertically. A proximity switch is threaded into the upper threaded hole. The sensing head of the proximity switch is located on the right side of the fixed post. A support tube is threaded into the lower threaded hole. A limit block is placed on the ground between the two angle steels, which contacts the right end of the support tube. The limit block is located on the right side of the sensing head. A limit rod that extends into the support tube is fixedly connected to the left end of the limit block. The right end face of the limit block is an arc-shaped concave surface that matches the outer circle of the wheel. The signal output terminal of the proximity switch is connected to a PLC controller through a signal line. The signal output terminal of the PLC controller is connected to a solenoid valve on the air circuit connected to the cylinder through a control line.

6. The rapid positioning device for a suction-textured trolley in artificial leather production according to claim 5, characterized in that: Each horizontal track is connected to a guide rail at its right end, which is also made of two angle steels. The distance between the two angle steels of the guide rail gradually increases from left to right.

7. The rapid positioning device for a suction-textured trolley in artificial leather production according to claim 4, characterized in that: The horizontal plate and the vertical plate, as well as the horizontal plate and the dovetail slider, are fixedly connected as one piece by welding; the horizontal plate is fixedly connected to the V-shaped positioning block by countersunk bolts running from top to bottom; the L-shaped positioning block is made of two horizontal and vertical steel plates welded together.

8. The rapid positioning device for a suction-textured trolley in artificial leather production according to claim 4, characterized in that: The support and vertical rail are fixed to the lower rear side of the foaming furnace by welding. The rear end of the L-shaped positioning block is fixed to the lower front side of the suction trolley by welding. The cylinder body is fixed to the support by bolts.

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