Cloth spreading machine for chair production

Abstract

The utility model relates to the field of chair production, in particular to a spreading machine for chair production. Comprising a pipe frame pressing table, a pressing block and a pressing cylinder; a platform of the pipe frame pressing table comprises a higher pressing table upper portion and a lower pressing table lower portion, and the pressing table upper portion and the pressing table lower portion are arranged to be matched with an H-shaped seat pipe frame needing to be sleeved with cloth in shape. A pressing block is arranged between the upper portion of the pressing table and the lower portion of the lower portion of the pressing table, a pressing air cylinder is connected to the lower portion of the pressing block, and the pressing block is located above a cross rod section of an H-shaped seat pipe frame placed on the pressing table in a normal state. The pressing block is driven by the pressing air cylinder to press the transverse pipe of the H-shaped seat pipe frame downwards, so that pipe bodies on the two sides are shrunk and sleeved with cloth. According to the device, a worker can quickly place the H-shaped seat pipe frame, the H-shaped seat pipe frame is shrunk towards the middle through the device, cloth is sleeved into the H-shaped seat pipe frame to complete assembly, and the device is convenient and efficient.

Description

TECHNICAL FIELD

[0001] The utility model relates to chair production field especially relates to a chair production cloth pulling machine. BACKGROUND

[0002] In the production of a seat, first, the steel pipe is pressed into the required shape by the pipe pressing machine, and then the steel pipe is welded into an H-shaped structure by welding, which is the skeleton of the chair back; the steel pipes on both sides of the steel pipe frame are provided with a concave groove structure along the length direction by sheet metal; then the cloth is sewn at both ends with a plug bar matched with the groove body, and the chair back is made by inserting into the two grooves; however, if the plug bar is just inserted into the groove, the installation effect is very loose and ugly, and the plug bar is easy to fall off during use; and the steel pipe can be slightly deformed and reset, so that the cloth and the steel pipe can be installed in an interference fit manner, and in order to facilitate the cloth to be well sleeved, a chair production cloth pulling machine is designed. SUMMARY

[0003] The utility model discloses a kind of chair production cloth pulling machines, including pipe frame pressing table, pressing block and pressing cylinder;The platform of pipe frame pressing table includes higher pressing table upper part and lower pressing table lower part, and the setting of pressing table upper part and pressing table lower part is matched with the shape of H-shaped seat pipe frame that needs to be sleeved with cloth;Pressing block is provided between pressing table upper part and pressing table lower part, and pressing cylinder is connected below the pressing block, and the pressing block is above the horizontal bar section of H-shaped seat pipe frame that is placed on pressing table in normal state, and the pressing block is driven downward by pressing cylinder and presses the horizontal pipe of H-shaped seat pipe frame, so that both sides of pipe body shrink and be sleeved with cloth.

[0004] The horizontal pipe in the middle of H-shaped seat pipe frame is arc-shaped, and the bottom of the pressing block is arc-shaped surface matched with the horizontal pipe.

[0005] The pressing table lower part and the contact end of pressing block with H-shaped seat pipe frame are all covered with waste cloth.

[0006] Two positioning grooves are symmetrically provided on the pressing table upper part, and the two positioning grooves are matched with H-shaped seat pipe frame;Horizontal plate is provided on the pressing table upper part between the two positioning grooves, spring pipe is provided on the side of each positioning groove close to the horizontal plate, opening with smaller diameter than the inner diameter of spring pipe is provided on the side of spring pipe close to the horizontal plate, telescopic rod can be telescopically inserted through the opening, one end of the telescopic rod is fixed with the horizontal plate, the other end of the telescopic rod is inserted into the spring pipe and connected with a piston block, spring is provided between the piston block and the bottom of the spring pipe, one end of the spring is fixed with the piston block, and the other end of the spring is fixed with the bottom of the spring pipe.

[0007] The first positioning baffle is arranged on the outer side of each positioning slot.

[0008] The second positioning baffle is arranged on the lower part of the pressing table.

[0009] The utility model discloses the beneficial effect lies in:

[0010] The device worker can place the H type seat pipe frame quickly, and the H type seat pipe frame is contracted to the middle through the equipment, is sleeved into cloth and completes assembly, which is convenient and efficient. BRIEF DESCRIPTION OF DRAWINGS

[0011] The utility model will be further explained in connection with the drawings and embodiment.

[0012] Fig. 1 It is the structure schematic diagram of the utility model;

[0013] Fig. 2 It is the side schematic diagram of the utility model;

[0014] Fig. 3 It is the spring pipe inside schematic diagram. DETAILED DESCRIPTION

[0015] The utility model will be further explained in connection with the drawings and embodiment:

[0016] Reference Figs. 1-3 .

[0017] A chair production cloth pulling machine, including pipe frame pressing table 1, pressing block 2 and pressing cylinder 3, the platform of pipe frame pressing table includes higher pressing table upper part 4 and lower pressing table lower part 5, and the setting of pressing table upper part and pressing table lower part is matched with the shape of H type seat pipe frame 6 that needs to be sleeved into cloth, the pressing block is arranged between pressing table upper part and pressing table lower part, the pressing cylinder is connected below the pressing block, the pressing block is above the horizontal pole section of H type seat pipe frame that is placed on the pressing table under normal circumstances, the pressing block is driven downward by pressing cylinder and presses the horizontal pipe of H type seat pipe frame to make both sides pipe body contract and sleeve into cloth.In order to present clearly, the pressing block 2 is drawn larger, and in actual equipment, the pressing block 2 is smaller and does not affect the installation of cloth.

[0018] The horizontal pipe 7 in the middle of H type seat pipe frame is arc-shaped, and the bottom of pressing block 2 is arc-shaped surface matched with horizontal pipe.

[0019] The lower part of the pressing table and the pressing block are covered with waste cloth. The pressing table is made of metal. During the pressing process, the H-shaped seat pipe frame is deformed and the paint on the surface is easily worn off. Therefore, the waste cloth in the factory is used to reduce the friction by binding.

[0020] Two positioning grooves 8 are symmetrically arranged on the upper part of the pressing table and matched with the H-shaped seat pipe frame. A horizontal plate 9 is arranged on the upper part of the pressing table between the two positioning grooves. A spring pipe 10 is arranged on one side of each positioning groove close to the horizontal plate. An opening with a diameter smaller than the inner diameter of the spring pipe is arranged on one side of the spring pipe close to the horizontal plate. A telescopic rod 11 can be telescopically arranged in the opening. One end of the telescopic rod is fixed to the horizontal plate, and the other end is inserted into the spring pipe and connected with a piston block 12. A spring 13 is arranged between the piston block and the bottom of the spring pipe. One end of the spring is fixed to the piston block, and the other end is fixed to the bottom of the spring pipe.

[0021] First positioning baffles 14 are arranged on the opposite outer sides of the two positioning grooves. In the normal state, the positioning grooves abut against the first positioning baffles and the springs are in the compressed state.

[0022] A second positioning baffle 15 is arranged on one end of the lower part of the pressing table away from the upper part of the pressing table.

[0023] Specific operation

[0024] Firstly, the H-shaped seat pipe frame is placed in the device. Under the action of the two positioning grooves 8 and the second positioning baffle 15, the H-shaped seat pipe frame can be quickly positioned and placed. After being placed, the worker starts the air cylinder, and the pressing block 2 presses the horizontal pipe 7 to make the H-shaped seat pipe frame shrink to the middle. The worker inserts the mounting strips at the two ends of the cloth with the mounting strips into the groove body 61 of the H-shaped seat pipe frame 6. After the insertion is completed along the groove body 61, the air cylinder is lifted, and the H-shaped seat pipe frame is returned to the original position.

[0025] The utility model discloses the above-mentioned only for the embodiment of the utility model, and it is not therefore limit the patent range of the utility model, and all the equivalent transformation or direct or indirect use in the related technical field with the contents of the utility model specification and drawings is all same reason and includes in the patent protection range of the utility model.

Claims

1. A chair production spreader, characterized in that: The utility model provides a pipe frame pressing platform, which comprises a pressing platform (1), a pressing block (2) and a pressing cylinder (3), wherein the platform of the pressing platform comprises a higher pressing platform upper part (4) and a lower pressing platform lower part (5), the pressing platform upper part and the pressing platform lower part are arranged to match the shape of an H-shaped seat pipe frame (6) to be sleeved with cloth, a pressing block is arranged between the pressing platform upper part and the pressing platform lower part, a pressing cylinder is connected below the pressing block, the pressing block is above the horizontal pipe section of the H-shaped seat pipe frame placed on the pressing platform in a normal state, the pressing block is driven downward by the pressing cylinder to press the horizontal pipe of the H-shaped seat pipe frame so that the two side pipe bodies are contracted and sleeved with cloth.

2. A chair production spreading machine according to claim 1, characterized in that: The horizontal pipe (7) in the middle of the H-shaped seat pipe frame is arc-shaped, and the bottom of the pressing block (2) is an arc-shaped surface matching the horizontal pipe.

3. The chair production spreader according to claim 1, characterized in that: The pressing platform lower part and the pressing block are both wrapped with waste cloth at the contact end with the H-shaped seat pipe frame.

4. The chair producing spreader according to claim 1, characterized in that: Two positioning grooves (8) are symmetrically arranged on the pressing platform upper part, and the two positioning grooves match the H-shaped seat pipe frame; a horizontal plate (9) is arranged on the pressing platform upper part in the middle of the two positioning grooves, a spring pipe (10) is arranged on one side of each positioning groove close to the horizontal plate, an opening with a diameter smaller than the inner diameter of the spring pipe is arranged on one side of the spring pipe close to the horizontal plate, a telescopic rod (11) can be telescopically arranged in the opening, one end of the telescopic rod is fixed to the horizontal plate, the other end of the telescopic rod extends into the spring pipe and is connected with a piston block (12), a spring (13) is arranged between the piston block and the bottom of the spring pipe, one end of the spring is fixed to the piston block, and the other end of the spring is fixed to the bottom of the spring pipe.

5. A chair production spreading machine according to claim 4, characterized in that: First positioning baffle plates (14) are arranged on the opposite outer sides of the two positioning grooves, and the positioning grooves abut against the positioning baffle plates and the springs are in a compressed state in a normal state.

6. A chair production spreading machine according to claim 1, characterized in that: A second positioning baffle plate (15) is arranged on one end of the pressing platform lower part away from the pressing platform upper part.

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