An auxiliary device for the production of foamed cotton

Abstract

The application provides an auxiliary device for foamed cotton production, which is used for flattening uneven foamed cotton surface and relates to the technical field of foamed cotton production equipment, and comprises a spacing adjusting base, a plurality of trolleys which are slidably connected to the middle part of the spacing adjusting base, and stretching mechanisms which are respectively arranged on the upper parts of the plurality of trolleys. The two stretching mechanisms of the stretching mechanisms are respectively used for clamping and rolling stretching of the two side edges of the foamed cotton, so that the surface is unfolded and flattened. While ensuring the consistency of the stretching rate, the foamed cotton is less damaged, and the integrity of the product can be ensured through later edge cutting. The spacing adjusting base and the trolleys can be used for adjusting the spacing to adapt to foamed cotton products of different sizes. The spacing adjusting base and the stretching mechanisms can be used for simultaneously adjusting the stretching amount of the two sides. The device has a simple structure, is convenient to operate, and improves the quality of foamed cotton products.

Description

Technical Field

[0001] This invention relates to the field of foam production equipment technology, specifically to an auxiliary device for foam production. Background Technology

[0002] Currently, polyolefin foam sheets are generally cross-linked and foamed in a vertical foaming furnace. After heating and foaming, the sheets become softer, longer, and wider, causing them to wrinkle and stick together. To facilitate subsequent calendering, the sheets need to be unfolded. Flattening rollers are usually installed in the vertical foaming furnace to unfold the sheets. During operation, the flattening rollers come into contact with the entire sheet, resulting in poor product surface. Under high temperature conditions, calcium crystals are easily formed on the surface of the water-cooled flattening rollers. Workers need to clean them in the high-temperature furnace every 2-3 hours. Failure to clean them will contaminate the surface of the foam.

[0003] Existing technologies mainly use two sets of roller pressing mechanisms to pull and unfold the material to both sides. The disadvantages are that the stretching rate of the roller pressing area and the unpressed area are quite different, and the stretching contact area is large, resulting in poor product quality. Workers must enter the high-temperature furnace regularly to clean, which increases labor intensity and makes continuous production impossible. Another type of non-contact stretching equipment stretches through vacuum adsorption, but it has high wind noise. Neither of these can meet the needs of production. Summary of the Invention

[0004] In view of the above problems, the present invention provides an auxiliary device for the production of foam cotton, which aims to solve the technical problem of uniform stretching and flattening of foam cotton mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary device for foam production, comprising a spacing adjustment base, wherein multiple trolleys are slidably connected to the middle of the spacing adjustment base, and a stretching mechanism is provided on the upper part of each of the multiple trolleys; each of the multiple stretching mechanisms includes a stretching base, the bottom surface of the stretching base is provided on the top surface of the trolley, the top surface of the stretching base is rotatably connected to an angle rotating shaft, the middle part of the angle rotating shaft is coaxially connected to an angle adjusting worm gear, one end of the angle rotating shaft is provided with a stretching mounting block, multiple stretching units are symmetrically arranged on one side of the stretching mounting block, a motor bracket is provided on the other side of the stretching mounting block, a stretching drive motor is provided on one side of the motor bracket, and the output end of the stretching drive motor is coaxially connected to the lower end of one of the stretching units.

[0006] Furthermore, the plurality of said trolleys are arranged in a centrally symmetrical manner with respect to the center of the spacing adjustment base, and the plurality of said tensioning mechanisms are arranged in an axisymmetric manner with respect to the minor axis of the spacing adjustment base.

[0007] Furthermore, the spacing adjustment base includes a base plate, a spacing adjustment mechanism is provided in the middle of the base plate, and multiple spacing adjustment slide rods are provided on both sides of the spacing adjustment mechanism. The two ends of the multiple spacing adjustment slide rods are respectively provided at the two ends of the slide rod brackets. The middle parts of the multiple slide rod brackets are rotatably connected to the two ends of multiple angle adjustment shafts. The middle parts of the multiple angle adjustment shafts are slidably connected to the lower part of the tensioning mechanism. One end of the multiple angle adjustment shafts is coaxially connected to multiple output ends of a dual-axis motor. The dual-axis motor is located above the spacing adjustment mechanism and on one side of the multiple slide rod brackets.

[0008] Furthermore, the spacing adjustment mechanism includes a spacing linkage gear, which is meshed with one side of the lower part of multiple trolleys. The spacing linkage gear is rotatably connected to the middle of the adjustment bracket. Both ends of the adjustment bracket are located at the middle of the top surface of the base plate. Rack limit wheels are respectively provided on both sides of the spacing linkage gear. Multiple rack limit wheels are respectively rotatably connected to the other side of the lower part of multiple trolleys. Multiple rack limit wheels are rotatably connected to the middle of the adjustment bracket. The spacing linkage gear is coaxially connected to a spacing adjustment worm gear. The spacing adjustment worm gear is meshed with a spacing adjustment worm. Both ends of the spacing adjustment worm are rotatably connected to first worm fixing blocks. Multiple first worm fixing blocks are located at one end of the adjustment bracket. One end of the spacing adjustment worm is coaxially connected to the output end of a spacing adjustment motor. The spacing adjustment motor is located on one side of one of the first worm fixing blocks.

[0009] Furthermore, the middle part of the angle adjustment shaft is set in the shape of a hexagonal prism.

[0010] Furthermore, the trolley includes a body, and the bottom surface of the body is provided with a spacing adjustment sleeve at each of the four corners. Multiple spacing adjustment sleeves are slidably connected to the middle of the spacing adjustment base. The bottom surface of the body is provided with a spacing adjustment rack. One side of the spacing adjustment rack is engaged with the middle of the spacing adjustment base, and the other side is slidably connected to the middle of the spacing adjustment base. Connecting pin holes are opened on both sides of the body. The lower part of the tensioning mechanism is inserted into the interior of multiple connecting pin holes.

[0011] Furthermore, the tension base includes a base mounting plate, which is disposed on the top surface of the trolley. The bottom surface of the base mounting plate is provided with multiple connecting pins, each with a base pin inserted at its lower part. The base pins are inserted on both sides of the trolleys. A worm gear groove is formed in the middle of the base mounting plate, and an angle adjusting worm is provided below the worm gear groove. The angle adjusting worm engages with the angle adjusting worm wheel. Both ends of the angle adjusting worm are rotatably connected to second worm fixing blocks, and multiple second worm fixing blocks are disposed on the bottom surface of the base mounting plate. The middle part of the angle adjusting worm is slidably connected to the middle part of the spacing adjusting base. The top surface of the base mounting plate is provided with multiple fixed bushings, each rotatably connected to the middle part of the angle rotating shaft.

[0012] Furthermore, the angle adjusting worm gear has an internal hexagonal through hole in its middle part, and the internal hexagonal through hole is slidably connected to the middle part of the spacing adjusting base.

[0013] Furthermore, the stretching unit includes a wide chain, which is sleeved on the outside of multiple fixed sprockets and a tensioning sprocket. The two ends of the multiple fixed sprockets are respectively rotatably connected to the middle of the sprocket mounting block. The tensioning sprocket is bolted to the upper side of the multiple sprocket mounting blocks. The multiple sprocket mounting blocks are interconnected by multiple limiting posts and multiple bolts. One of the fixed sprockets is coaxially connected to a stretching linkage gear. The stretching linkage gear meshes with the stretching linkage gear in another stretching unit. One end of the stretching linkage gear is coaxially connected to the output end of the stretching drive motor.

[0014] Furthermore, an air nozzle is provided at the upper end of the sprocket mounting block near the middle of the spacing adjustment base. The air nozzle is connected to an external air pump through a hose. Multiple air outlets are provided on one side of the upper part of the sprocket mounting block, and all of the multiple air outlets are linked to the air nozzle.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The two stretching mechanisms clamp and roll the foam along both sides of the foam, ensuring consistent stretching while minimizing damage. Product integrity can be maintained through subsequent edge trimming. The spacing can be adjusted using a trolley with an adjustable base to accommodate foam products of different sizes. The stretching force on both sides can also be adjusted simultaneously using the adjustable base and stretching mechanism. This equipment is simple in structure, easy to operate, and improves the quality of foam products. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0018] Figure 2 This is a schematic diagram showing the internal structure of the present invention.

[0019] Figure 3 This is a schematic diagram of the tensioning mechanism of the present invention;

[0020] Figure 4 This is a schematic diagram showing the disassembled structure of the stretching mechanism of the present invention;

[0021] Figure 5 This is a schematic diagram showing the disassembled structure of the spacing adjustment base of the present invention;

[0022] Figure 6 This is a schematic diagram of the spacing adjustment mechanism of the present invention;

[0023] Figure 7 This is a schematic diagram of the trolley structure of the present invention;

[0024] Figure 8 This is a schematic diagram of the tensile base structure of the present invention;

[0025] Figure 9 This is a schematic diagram of the tensile unit structure of the present invention;

[0026] Figure 10 This is a schematic diagram showing the disassembled structure of the stretching unit of the present invention.

[0027] In the diagram: 1. Spacing adjustment base; 11. Base plate; 12. Spacing adjustment mechanism; 121. Spacing linkage gear; 122. Adjustment bracket; 123. Rack limit wheel; 124. Spacing adjustment worm gear; 125. Spacing adjustment worm; 126. First worm fixing block; 127. Spacing adjustment motor; 13. Spacing adjustment slide bar; 14. Slide bar bracket; 15. Angle adjustment shaft; 16. Dual-axis motor; 2. Trolley; 21. Car body; 22. Spacing adjustment sliding sleeve; 23. Spacing adjustment rack; 24. Connecting pin hole; 3. Tensioning mechanism; 31. Tensioning base; 311. Base Mounting plate; 312, Connecting pin block; 313, Base pin; 314, Worm gear groove; 315, Angle adjusting worm; 3151, Internal hexagonal through hole; 316, Second worm fixing block; 317, Fixed bushing; 32, Angle rotating shaft; 33, Angle adjusting worm gear; 34, Tension mounting block; 35, Tension unit; 351, Wide chain; 352, Fixed sprocket; 353, Tensioning sprocket; 354, Sprocket mounting block; 3541, Air nozzle; 3542, Air outlet; 355, Limiting post; 356, Tension linkage gear; 36, Motor bracket; 37, Tension drive motor. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] The embodiments of the present invention will now be described.

[0030] Please refer to the following examples. Figure 1-4 An auxiliary device for foam production includes a spacing adjustment base 1, with multiple trolleys 2 slidably connected to the middle of the spacing adjustment base 1. Each of the multiple trolleys 2 has a tensioning mechanism 3 on its upper part. Each of the multiple tensioning mechanisms 3 includes a tensioning base 31, the bottom surface of which is located on the top surface of the trolley 2. The top surface of the tensioning base 31 is rotatably connected to an angle rotating shaft 32. An angle adjusting worm gear 33 is coaxially connected to the middle of the angle rotating shaft 32. A tensioning mounting block 34 is provided at one end of the angle rotating shaft 32. Multiple tensioning units 35 are symmetrically arranged on one side of the tensioning mounting block 34. A motor bracket 36 is provided on the other side of the tensioning mounting block 34. A tensioning drive motor 37 is provided on one side of the motor bracket 36. The output end of the tensioning drive motor 37 is coaxially connected to the lower end of one of the tensioning units 35. Multiple trolleys 2 are arranged symmetrically about the center of the spacing adjustment base 1, and multiple stretching mechanisms 3 are arranged axially symmetrically about the short axis of the spacing adjustment base 1. This design uses multiple stretching drive motors 37 to drive one stretching unit 35 to run, and then link the other two stretching units 35 to clamp and roll the two sides of the foam. The tilt of the two sets of stretching units 35 is controlled by adjusting the tilt of the two stretching mounting blocks 34 by the spacing adjustment base 1, thereby adjusting the stretching force on the foam.

[0031] Please refer to the following examples. Figure 5-6The spacing adjustment base 1 includes a base plate 11. A spacing adjustment mechanism 12 is provided in the middle of the base plate 11. Multiple spacing adjustment slide rods 13 are provided on both sides of the spacing adjustment mechanism 12. The two ends of the multiple spacing adjustment slide rods 13 are respectively located at the two ends of slide rod brackets 14. The middle parts of the multiple slide rod brackets 14 are rotatably connected to the two ends of multiple angle adjustment shafts 15. The middle parts of the multiple angle adjustment shafts 15 are slidably connected to the lower part of the tensioning mechanism 3. One end of each of the multiple angle adjustment shafts 15 is coaxially connected to a dual-axis motor 16. The dual-axis motor 16 is located above the spacing adjustment mechanism 12 and on one side of the multiple slide bar supports 14, with multiple output terminals. The spacing adjustment mechanism 12 includes a spacing linkage gear 121, which is meshed with the lower side of the multiple trolleys 2. The spacing linkage gear 121 is rotatably connected to the middle of the adjustment bracket 122, with both ends of the adjustment bracket 122 located at the center of the top surface of the base plate 11. Rack limit wheels 123 are respectively provided on both sides of the spacing linkage gear 121, and multiple rack limit wheels... Wheels 123 are respectively rolledly connected to the other side of the lower part of multiple trolleys 2. Multiple rack limiting wheels 123 are rotatably connected to the middle part of the adjusting bracket 122. The spacing linkage gear 121 is coaxially connected to the spacing adjusting worm gear 124. The spacing adjusting worm gear 124 is meshed with the spacing adjusting worm 125. The two ends of the spacing adjusting worm 125 are respectively rotatably connected to the first worm fixing block 126. Multiple first worm fixing blocks 126 are all provided at one end of the adjusting bracket 122. One end of the spacing adjusting worm 125 is coaxially connected to... The distance is connected to the output end of the spacing adjustment motor 127, which is located on one side of one of the first worm gear fixing blocks 126. The middle part of the angle adjustment shaft 15 is set in the shape of a hexagonal prism. This design drives the spacing adjustment worm gear 125 to rotate through the spacing adjustment motor 127, which in turn drives the spacing adjustment worm wheel 124 to rotate, and then drives the spacing linkage gear 121 to rotate. Through the meshing of the spacing linkage gear 121 with the two trolleys 2, the two trolleys 2 are driven to move along the direction of the spacing adjustment slide bar 13, thereby adjusting the distance between the two trolleys 2.

[0032] In this embodiment, one end of each of the multiple angle adjustment shafts 15 is coaxially connected to an angle adjustment motor, and two angle adjustment motors are respectively located on one side of the two sliding rod supports 14 that are furthest apart; thereby controlling the angles of the two sets of tension units 35 respectively.

[0033] In this embodiment, the spacing adjustment mechanism 12 can be replaced by two telescopic cylinders, one end of each telescopic cylinder being located at both ends of the base plate 11, and the actuating ends of each telescopic cylinder being located at the lower part of the two trolleys 2, thereby controlling the movement of the two trolleys 2 respectively.

[0034] Please refer to the following examples. Figure 7The trolley 2 includes a body 21. At the four corners of the bottom surface of the body 21, there are pitch adjustment sleeves 22. Multiple pitch adjustment sleeves 22 are slidably connected to the middle of the pitch adjustment rod 13. A pitch adjustment rack 23 is provided on the bottom surface of the body 21. One side of the pitch adjustment rack 23 is engaged with the middle of the pitch adjustment base 1, and the other side is slidably connected to the middle of the pitch adjustment base 1. Connecting pin holes 24 are provided on both sides of the body 21. The lower part of the tensioning mechanism 3 is inserted into the interior of multiple connecting pin holes 24. This design uses a pitch linkage gear 121 that engages with the pitch adjustment rack 23 to move the body 21 along the pitch adjustment rod 13.

[0035] Please refer to the following examples. Figure 8 The tension base 31 includes a base mounting plate 311, which is disposed on the top surface of the vehicle body 21. The bottom surface of the base mounting plate 311 has multiple connecting pin blocks 312, and base pins 313 are inserted into the lower parts of each connecting pin block 312. The base pins 313 are inserted into the interiors of multiple connecting pin holes 24. A worm gear groove 314 is formed in the middle of the base mounting plate 311, and an angle adjusting worm 315 is disposed below the worm gear groove 314. The angle adjusting worm 315 is engaged with the angle adjusting worm wheel 33. The two ends of the angle adjusting worm 315 are rotatably connected to second worm fixing blocks 316, and multiple second worm fixing blocks 316 are disposed on the bottom surface of the base mounting plate 311. The angle... The middle part of the adjusting worm 315 is slidably connected to the middle part of the spacing adjusting base 1. The top surface of the base mounting plate 311 is provided with multiple fixed bushings 317. The multiple fixed bushings 317 are rotatably connected to the middle part of the angle rotating shaft 32. The middle part of the angle adjusting worm 315 is provided with an internal hexagonal through hole 3151. The internal hexagonal through hole 3151 is slidably connected to the middle part of the angle adjusting shaft 15. This design drives two angle adjusting shafts 15 to rotate simultaneously through the dual-axis motor 16, which in turn drives two angle adjusting worms 315 to rotate simultaneously. The angle adjusting worm 315 and the angle adjusting worm wheel 33 mesh with each other to drive the angle rotating shaft 32 and the tension mounting block 34 to rotate, thereby adjusting the inclination of the two sets of tensioning units 35 to adjust the tension of the foam.

[0036] Please refer to the following examples. Figure 9-10The tensioning unit 35 includes a wide chain 351, which is sleeved on the outside of multiple fixed sprockets 352 and a tensioning sprocket 353. The two ends of the multiple fixed sprockets 352 are rotatably connected to the middle of sprocket mounting blocks 354. The tensioning sprocket 353 is bolted to the upper side of the multiple sprocket mounting blocks 354. The multiple sprocket mounting blocks 354 are interconnected by multiple limiting posts 355 and multiple bolts. One of the fixed sprockets 352 is coaxially connected to a tensioning linkage gear 356. The tensioning linkage gear 356 is connected to the tensioning linkage gear in another tensioning unit 35. The tension linkage gear 356 is connected in a meshing manner. One end of the tension linkage gear 356 is coaxially connected to the output end of the tension drive motor 37. This design drives the tension linkage gear 356 and the lowest fixed sprocket 352 to rotate through the tension drive motor 37, which in turn drives the wide chain 351 to roll. The tension linkage gear 356 meshes with the tension linkage gear 356 in another tension unit 35, which drives the lowest fixed sprocket 352 in the other tension unit 35 to rotate, which in turn drives the wide chain 351 to roll. By having the two wide chains 351 roll simultaneously, the two sides of the foam are clamped and stretched in an inclined direction.

[0037] An air nozzle 3541 is provided at the upper end of the sprocket mounting block 354 near the middle of the spacing adjustment base 1. The air nozzle 3541 is connected to an external air pump through a hose. Multiple air outlets 3542 are opened on one side of the upper part of the sprocket mounting block 3544. All the air outlets 3542 are linked to the air nozzle 3541. This design sends air to the air nozzle 3541 through the external air pump and blows it out to the two sides of the foam through the multiple air outlets 3542, thereby rapidly cooling the two sides of the foam. This cools the foam before it is clamped by the edge chain, avoiding the problem of the foam sticking to the wide chain 351 and causing tensile damage.

[0038] In this embodiment, the upper part of the sprocket mounting block 354, which has an air nozzle 3541 and multiple air outlets 3542, is arranged in an arc shape. This design is to ensure that sufficient space is reserved when the foam enters between the two stretching units 35, so as to prevent the foam from being pulled or caught on the air nozzle 3541.

[0039] Operating principle: First, the spacing adjustment motor 127 drives the spacing adjustment worm 125 to rotate, which in turn drives the spacing adjustment worm wheel 124 to rotate, which in turn drives the spacing linkage gear 121 to rotate. The spacing linkage gear 121 meshes with the spacing adjustment rack 23, causing the carriage 21 to move along the spacing adjustment slide bar 13, thereby adjusting the distance between the two trolleys 2 to accommodate the width of the foam cotton conveyed from the previous process. The dual-shaft motor 16 simultaneously drives the two angle adjustment shafts 15 to rotate, which in turn simultaneously drives the two angle adjustment worms 315 to rotate. The angle adjustment worms 315 mesh with the angle adjustment worm wheel 33, which in turn drives the angle rotating shaft 32 and the stretching shaft 32. The mounting block 34 rotates, thereby adjusting the inclination of the two sets of stretching units 35 to adjust the stretching force on the foam. The two stretching mechanisms 3 drive the stretching linkage gear 356 and the lowest fixed sprocket 352 of the stretching mechanism 356 to rotate through the stretching drive motor 37, which in turn drives the wide chain 351 to roll. The stretching linkage gear 356 meshes with the stretching linkage gear 356 in the other stretching unit 35, which drives the lowest fixed sprocket 352 of the other stretching unit 35 to rotate, which in turn drives the wide chain 351 to roll. By rolling the two wide chains 351 at the same time, the two sides of the foam are clamped and stretched in the inclined direction, and the operation is continuous.

[0040] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An auxiliary device for the production of foamed cotton, characterized in that: The system includes a spacing adjustment base (1), with multiple trolleys (2) slidably connected to the middle of the spacing adjustment base (1). Each of the multiple trolleys (2) has a tensioning mechanism (3) on its upper part. Each of the multiple tensioning mechanisms (3) includes a tensioning base (31), with the bottom surface of the tensioning base (31) located on the top surface of the trolley (2). The top surface of the tensioning base (31) is rotatably connected to an angle rotating shaft (32). An angle adjusting worm gear (33) is coaxially connected to the middle of the angle rotating shaft (32). One end of the angle rotating shaft (32) is provided with a tensioning mounting block (34). Multiple tensioning units (35) are symmetrically arranged on one side of the tensioning mounting block (34). The other side of the tensioning mounting block (34) is provided with a motor bracket (36). One side of the motor bracket (36) is provided with a tensioning drive motor (37). The output end of the tensioning drive motor (37) is coaxially connected to the lower end of one of the tensioning units (35). The spacing adjustment base (1) includes a base plate (11), a spacing adjustment mechanism (12) is provided in the middle of the base plate (11), a plurality of spacing adjustment slide rods (13) are provided on both sides of the spacing adjustment mechanism (12), the two ends of the plurality of spacing adjustment slide rods (13) are respectively provided at the two ends of the slide rod bracket (14), the middle part of the plurality of slide rod brackets (14) is rotatably connected to the two ends of a plurality of angle adjustment shafts (15), the middle part of the plurality of angle adjustment shafts (15) is slidably connected to the lower part of the tensioning mechanism (3), one end of the plurality of angle adjustment shafts (15) is coaxially connected to the plurality of output ends of a dual-axis motor (16), the dual-axis motor (16) is located above the spacing adjustment mechanism (12) and on one side of the plurality of slide rod brackets (14); The tension base (31) includes a base mounting plate (311), which is located on the top surface of the trolley (2). The bottom surface of the base mounting plate (311) is provided with multiple connecting pins (312), and base pins (313) are inserted into the lower parts of each connecting pin (312). The base pins (313) are inserted into both sides of the multiple trolleys (2). A worm gear groove (314) is opened in the middle of the base mounting plate (311), and an angle adjusting worm (315) is provided below the worm gear groove (314). The worm gear (315) is engaged with the angle adjusting worm wheel (33). The two ends of the angle adjusting worm gear (315) are respectively rotatably connected to the second worm gear fixing block (316). Multiple second worm gear fixing blocks (316) are provided on the bottom surface of the base mounting plate (311). The middle part of the angle adjusting worm gear (315) is slidably connected to the middle part of the spacing adjusting base (1). Multiple fixed bushings (317) are provided on the top surface of the base mounting plate (311). Multiple fixed bushings (317) are rotatably connected to the middle part of the angle rotating shaft (32). The stretching unit (35) includes a wide chain (351), which is sleeved on the outside of multiple fixed sprockets (352) and tension sprockets (353). The two ends of the multiple fixed sprockets (352) are respectively rotatably connected to the middle of the sprocket mounting block (354). The tension sprocket (353) is bolted to the upper side of the multiple sprocket mounting blocks (354). The multiple sprocket mounting blocks (354) are interconnected by multiple limiting posts (355) and multiple bolts. One of the fixed sprockets (352) is coaxially connected to a stretching linkage gear (356). The stretching linkage gear (356) meshes with the stretching linkage gear (356) in another stretching unit (35). One end of the stretching linkage gear (356) is coaxially connected to the output end of the stretching drive motor (37).

2. The auxiliary equipment for foam production according to claim 1, characterized in that: The multiple trolleys (2) are arranged in a centrally symmetrical manner with respect to the center of the spacing adjustment base (1), and the multiple tensioning mechanisms (3) are arranged in an axisymmetric manner with respect to the short axis of the spacing adjustment base (1).

3. The auxiliary equipment for foam production according to claim 1, characterized in that: The spacing adjustment mechanism (12) includes a spacing linkage gear (121), which is meshed with one side of the lower part of a plurality of trolleys (2). The spacing linkage gear (121) is rotatably connected to the middle part of an adjustment bracket (122). Both ends of the adjustment bracket (122) are located at the middle of the top surface of the base plate (11). Rack limit wheels (123) are respectively provided on both sides of the spacing linkage gear (121). A plurality of rack limit wheels (123) are respectively rotatably connected to the other side of the lower part of a plurality of trolleys (2). A plurality of rack limit wheels (123) are rotatably connected to the adjustment bracket (122). In the middle of the bracket (122), the spacing linkage gear (121) is coaxially connected to the spacing adjustment worm wheel (124), the spacing adjustment worm wheel (124) is meshed with the spacing adjustment worm (125), the two ends of the spacing adjustment worm (125) are respectively rotatably connected to the first worm fixing block (126), and multiple first worm fixing blocks (126) are all located at one end of the adjustment bracket (122). One end of the spacing adjustment worm (125) is coaxially connected to the output end of the spacing adjustment motor (127), and the spacing adjustment motor (127) is located on one side of one of the first worm fixing blocks (126).

4. An auxiliary device for foam production according to claim 1, characterized in that: The angle adjustment shaft (15) is set in the middle of a hexagonal prism.

5. An auxiliary device for foam production according to claim 1, characterized in that: The trolley (2) includes a body (21). The four corners of the bottom surface of the body (21) are provided with pitch adjustment sleeves (22). Multiple pitch adjustment sleeves (22) are slidably connected to the middle of the pitch adjustment base (1). The bottom surface of the body (21) is provided with a pitch adjustment rack (23). One side of the pitch adjustment rack (23) is engaged with the middle of the pitch adjustment base (1), and the other side is slidably connected to the middle of the pitch adjustment base (1). Connecting pin holes (24) are opened on both sides of the body (21). The lower part of the tensioning mechanism (3) is inserted into the interior of multiple connecting pin holes (24).

6. An auxiliary device for foam production according to claim 1, characterized in that: The angle adjusting worm (315) has an internal hexagonal through hole (3151) in the middle, and the internal hexagonal through hole (3151) is slidably connected to the middle of the spacing adjusting base (1).

7. An auxiliary device for foam production according to claim 1, characterized in that: An air nozzle (3541) is provided at the upper end of the sprocket mounting block (354) near the middle of the spacing adjustment base (1). The air nozzle (3541) is connected to an external air pump through a hose. Multiple air outlets (3542) are provided on one side of the upper part of the sprocket mounting block (354), and the multiple air outlets (3542) are all linked to the air nozzle (3541).

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