Wide-width low-temperature impact-resistant and bend-resistant PVC co-extrusion foamed plate edge pressing device and process

Abstract

The present application relates to the technical field of edge pressing device of foamed sheet, in particular to a wide low-temperature impact-resistant and bending-resistant PVC co-extrusion foamed sheet edge pressing device and process, which comprises a machine body, the two sides of the machine body are fixedly connected with air cylinders, the upper surface of the machine body is fixedly connected with a driving motor, the inside of the machine body is rotatably connected with a proportional control mechanism with adjustable transmission ratio, the inside of the machine body is provided with a clutch adjusting mechanism, the inside of the machine body is fixedly connected with an arc-shaped extrusion mechanism with adjustable arc edge, and the inside of the machine body is slidably connected with heat cutting deformation mechanisms for edge pressing on both sides. In the present application, the heating rods and heat-conducting steel wires in the sliding grooves are driven by the air cylinders to slide downward in the machine body, and when the two pairs of arc-shaped extrusion blocks and the arc-shaped extrusion block one are extruded with each other, the shape of the heat-conducting steel wires can be changed, and the foamed sheet can be switched between wave-shaped edge pressing and straight edge pressing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of edge pressing device for foamed sheet, in particular to a wide low-temperature impact-resistant and bending-resistant PVC co-extrusion foamed sheet edge pressing device and process. BACKGROUND

[0002] The wide low-temperature impact-resistant and bending-resistant PVC co-extrusion foamed sheet is a new type of building material with excellent performance. It is made of polyvinyl chloride resin as the main raw material, adding foaming agent, plasticizer, stabilizer, filler and other additives, through special co-extrusion foaming process. This kind of sheet has many outstanding features. First, the wide design can meet the demand of large-area construction, reduce splicing, improve construction efficiency and aesthetics, for example, in large building exterior decoration, it can present a more flat and continuous decoration effect. Secondly, the low-temperature impact-resistant performance is excellent, through optimizing the formula and processing technology, it can still maintain good flexibility and toughness in low-temperature environment.

[0003] The existing technology of foamed sheet edge pressing is generally linear by mechanical pressing. Compared with the prior art, it is difficult to have a better solution for different edge shapes, such as straight edge and wavy edge requirements. Different treatments are required, and the process change will be extremely cumbersome, so a wide low-temperature impact-resistant and bending-resistant PVC co-extrusion foamed sheet edge pressing device is needed. SUMMARY

[0004] The purpose of the present application is to provide a wide low-temperature impact-resistant and bending-resistant PVC co-extrusion foamed sheet edge pressing device and process to solve the problems in the background art. To achieve the above purpose, the present application provides the following technical scheme: a wide low-temperature impact-resistant and bending-resistant PVC co-extrusion foamed sheet edge pressing device, comprising a machine body, the two sides of the machine body are fixedly connected with air cylinders, the upper surface of the machine body is fixedly connected with a driving motor;

[0005] The inside of the machine body is rotatably connected with a proportional control mechanism with adjustable transmission ratio, the inside of the machine body is provided with a clutch adjusting mechanism, the inside of the machine body is fixedly connected with an arc-shaped extrusion mechanism with adjustable arc edge, and the inside of the machine body is slidably connected with a heat cutting deformation mechanism for edge pressing.

[0006] Preferably, the proportional control mechanism comprises an eccentric wheel, the center of the upper surface of the eccentric wheel is fixedly connected with the output shaft of the driving motor, the bottom of the eccentric wheel is rotatably connected with a connecting rod, the upper surface of one end of the connecting rod is rotatably connected with the inner upper end of the body, the lower surface of one end of the connecting rod is rotatably connected with a push rod, the lower end of the push rod is rotatably connected with an adjusting rod, the inner upper end of the body is fixedly connected with an arc-shaped groove, the arc-shaped groove is slidably connected with a sliding rod, the surface of the sliding rod is rotatably connected with one end of the adjusting rod, a threaded groove is formed in the upper end of the sliding rod, and a threaded rod is screwedly connected in the threaded groove, and one end of the threaded rod is rotatably connected with an L-shaped support frame.

[0007] Preferably, the clutch adjusting mechanism comprises a fixed plate, the fixed plate is fixedly connected in the body, the inner side of the body is rotatably connected with a rotating rod, one end of the rotating rod is fixedly connected with a knob, the surface of the knob is rotatably connected with a numerical horizontal groove sleeve, the numerical horizontal groove sleeve is rotatably connected on the side surface of the body, the surface of the rotating rod is fixedly connected with a toothed disc one, one end of the threaded rod is fixedly connected with a toothed disc two, the bottom of the L-shaped support frame is rotatably connected with the surface of the fixed plate, the toothed disc one and the toothed disc two are in meshing state, the other end of the rotating rod is fixedly connected with a bevel gear one, the surface of the fixed plate is rotatably connected with a spline telescopic rod, the upper end of the spline telescopic rod is fixedly connected with a bevel gear two, and the lower surface of the fixed plate is fixedly connected with a telescopic sleeve.

[0008] Preferably, the lower end of the spline telescopic rod is fixedly connected with a spring collar, the lower surface of the fixed plate is fixedly connected with a telescopic rod, the lower end of the telescopic rod is fixedly connected with a fixed groove, the surface of the telescopic sleeve is provided with inclined grooves on both sides, the spring collar is in the inclined grooves, the lower end of the telescopic sleeve is fixedly connected with a clamping tooth one, the fixed groove is rotatably connected with a clamping tooth two in the inside, and the clamping tooth one and the clamping tooth two are in transmission connection with a transmission belt.

[0009] Preferably, the arc-shaped extrusion mechanism comprises a sliding plate, the sliding plate is slidably connected in the body, one end of the sliding plate is hingedly connected with the push rod, the inner side of the body is fixedly connected with a horizontal plate, the surfaces of the sliding plate and the horizontal plate are both rotatably connected with rotating wheels, the rotating wheels are provided in several groups and are arranged staggeredly on the sliding plate and the horizontal plate, the surface of the rotating wheel is provided with an arc groove, and the surfaces of the rotating wheels on one side are all fixedly connected with clamping teeth three.

[0010] Preferably, the surface of the sliding plate is fixedly connected with a limiting slide rail, the lower surface of the sliding plate is fixedly connected with a bidirectional telescopic rod, the telescopic ends of the bidirectional telescopic rod are fixedly connected with arc-shaped extrusion blocks, the inside of the arc-shaped extrusion blocks is slidably connected with L-shaped slide rods, the surface of the L-shaped slide rods is slidably connected with arc-shaped extrusion blocks I, the L-shaped slide rods pass through the arc-shaped extrusion blocks and the arc-shaped extrusion blocks I at the same time, the arc-shaped extrusion blocks and the arc-shaped extrusion blocks I are clamped on the same axis, and the L-shaped slide rods pass through the inside of the limiting slide rail and the arc groove and are slidably connected therein.

[0011] Preferably, the hot cutting deformation mechanism comprises a sliding groove, the sliding groove is slidably connected on both sides of the machine body, one end of the sliding groove is fixedly connected with the telescopic end of the air cylinder, the lower end of the sliding plate is fixedly connected with an inclined slot, the inside of the sliding groove is slidably connected with heating rods, and the heating rods are symmetrically arranged in the machine body.

[0012] The process of the edge pressing device for wide low-temperature impact-resistant and bend-resistant PVC co-extrusion foam board comprises the following steps:

[0013] S1, first, the engagement of the first tooth and the second tooth with the third tooth is adjusted, then the rotation of the knob drives the third tooth to rotate, the deformation of the arc-shaped extrusion block and the arc-shaped extrusion block I is caused, and thus the adjustment of the curvature of the hot cutting deformation mechanism is realized;

[0014] S2, the rotation of the knob also drives the proportional control mechanism to work, the distance between the arc-shaped extrusion block and the arc-shaped extrusion block I during relative extrusion is changed, and thus the accuracy of the curvature is ensured;

[0015] S3, the curvature is determined by the rotation distance of the numerical transverse groove sleeve driven by the knob, the inclined slot is moved when the sliding plate moves, the heating rod is moved in the sliding groove by the inclined slot, the heating rod is extruded by the inclined slot and slides in the sliding groove, and thus the two heating rods slide inward when the heat-conducting steel wire is extruded, and the stability of the heat-conducting steel wire during extrusion is ensured.

[0016] In the application, the heating rod and the heat-conducting steel wire in the sliding groove are driven by the air cylinder to slide downward in the machine body, the shape of the heat-conducting steel wire can be changed when the two pairs of arc-shaped extrusion blocks and the arc-shaped extrusion block I are extruded, and the switching between the wave-shaped edge pressing and the straight edge pressing of the foam board is realized.

[0017] In the application, the rotation of the knob also drives the proportional control mechanism to work, the distance between the arc-shaped extrusion block and the arc-shaped extrusion block I during relative extrusion is changed, and thus the accuracy of the curvature is ensured.

[0018] In the application, the heating rods are driven to slide in the sliding groove by the inclined slot, and the two heating rods slide inwards when the heat-conducting steel wire is extruded, thus ensuring the stability of the heat-conducting steel wire when it is extruded. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional appearance schematic diagram of the application;

[0020] Figure 2 It is a side sectional structure schematic diagram of the application;

[0021] Figure 3 It is a schematic diagram of the internal structure of the machine body of the application;

[0022] Figure 4 It is a schematic diagram of the cylinder and other structures of the application;

[0023] Figure 5 It is a schematic diagram of the proportional control mechanism structure of the application;

[0024] Figure 6 It is a schematic diagram of the clutch adjusting mechanism structure of the application;

[0025] Figure 7 It is a schematic diagram of the clutch adjusting mechanism structure of the application;

[0026] Figure 8 It is a schematic diagram of the telescopic sleeve and other structures of the application;

[0027] Figure 9 It is a schematic diagram of the knob and other enlarged structures of the application;

[0028] Figure 10 It is a schematic diagram of the fixed groove from the bottom of the application;

[0029] Figure 11 It is a schematic diagram of the arc-shaped extrusion mechanism structure of the application;

[0030] Figure 12 It is a schematic diagram of the arc-shaped extrusion mechanism structure of the application;

[0031] Figure 13 It is a schematic diagram of the sliding groove and other structures of the application;

[0032] Figure 14 It is a schematic diagram of the arc-shaped extrusion block and other enlarged structures of the application.

[0033] In the figure: 1, the body; 2, cylinder; 3, drive motor; 4, proportional control mechanism; 5, clutch adjusting mechanism; 6, arc extrusion mechanism; 7, hot cutting deformation mechanism; 41, eccentric wheel; 42, connecting rod; 43, push rod; 44, adjusting rod; 45, arc slot; 46, sliding rod; 47, threaded rod; 48, L-shaped support frame; 51, fixed plate; 52, rotating rod; 53, knob; 54, gear disc one; 55, gear disc two; 56, bevel gear one; 57, spline telescopic rod; 58, bevel gear two; 59, telescopic sleeve; 510, spring collar; 511, telescopic rod; 512, inclined slot; 513, first pawl; 514, fixed slot; 515, second pawl; 516, transmission belt; 517, numerical horizontal slot sleeve; 61, sliding plate; 62, horizontal plate; 63, rotating wheel; 64, arc slot; 65, third pawl; 66, limit slide rail; 67, bidirectional telescopic rod; 68, arc extrusion block; 69, arc extrusion block one; 610, L-shaped slide rod; 71, sliding groove; 72, inclined slot; 73, heating rod; 74, heat-conducting steel wire. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0035] Please refer to Figures 1 to 14 The present application provides a technical solution: a wide-width low-temperature impact-resistant and bend-resistant PVC co-extrusion foam board edge pressing device, which comprises a body 1, both sides of the body 1 are fixedly connected with cylinders 2, and the upper surface of the body 1 is fixedly connected with a drive motor 3.

[0036] The inside of the body 1 is rotationally connected with a proportional control mechanism 4 with adjustable transmission ratio, the inside of the body 1 is provided with a clutch adjusting mechanism 5, the inside of the body 1 is fixedly connected with an arc edge adjustable arc extrusion mechanism 6, and both sides of the inside of the body 1 are slidingly connected with hot cutting deformation mechanisms 7 for edge pressing.

[0037] The proportional control mechanism 4 comprises an eccentric wheel 41, the upper surface center of which is fixedly connected with the output shaft of the driving motor 3, the bottom of which is rotatably connected with a connecting rod 42, the upper surface of one end of which is rotatably connected with the inner upper end of the machine body 1, the lower surface of one end of which is rotatably connected with a pushing rod 43, the lower end of which is rotatably connected with an adjusting rod 44, the inner upper end of the machine body 1 is fixedly connected with an arc-shaped groove 45, the inner surface of the arc-shaped groove 45 is slidably connected with a sliding rod 46, the surface of the sliding rod 46 is rotatably connected with one end of the adjusting rod 44, the upper end of the sliding rod 46 is provided with a threaded groove, and the threaded groove is threadedly connected with a threaded rod 47, one end of the threaded rod 47 is rotatably connected with an L-shaped support frame 48.

[0038] The clutch adjusting mechanism 5 comprises a fixed plate 51, which is fixedly connected to the inner side of the machine body 1, a rotating rod 52 rotatably connected to the inner side of the machine body 1, a knob 53 fixedly connected to one end of the rotating rod 52, a numerical horizontal groove sleeve 517 rotatably connected to the surface of the knob 53 and the side surface of the machine body 1, a tooth disc one 54 fixedly connected to the surface of the rotating rod 52, a tooth disc two 55 fixedly connected to one end of the threaded rod 47, the bottom of the L-shaped support frame 48 rotatably connected to the surface of the fixed plate 51, the tooth disc one 54 and the tooth disc two 55 in meshing state, a bevel gear one 56 fixedly connected to the other end of the rotating rod 52, a spline telescopic rod 57 rotatably connected to the surface of the fixed plate 51, a bevel gear two 58 fixedly connected to the upper end of the spline telescopic rod 57, and an expansion sleeve 59 fixedly connected to the lower surface of the fixed plate 51.

[0039] The lower end of the spline telescopic rod 57 is fixedly connected with a spring collar 510, the lower surface of the fixed plate 51 is fixedly connected with a telescopic rod 511, the lower end of the telescopic rod 511 is fixedly connected with a fixed groove 514, the surface of the expansion sleeve 59 is provided with inclined grooves 512 on both sides, the spring collar 510 is in the inclined grooves 512, the lower end of the expansion sleeve 59 is fixedly connected with a tooth one 513, the inner surface of the fixed groove 514 is rotatably connected with a tooth two 515, and the tooth one 513 and the tooth two 515 are in transmission connection with a transmission belt 516.

[0040] The arc extrusion mechanism 6 comprises a sliding plate 61 which is slidingly connected in the interior of the body 1, one end of the sliding plate 61 is hingedly connected with the pushing rod 43, the interior of the body 1 is fixedly connected with a horizontal plate 62, the surfaces of the sliding plate 61 and the horizontal plate 62 are both rotatably connected with a plurality of sets of rotating wheels 63 which are arranged staggeredly on the sliding plate 61 and the horizontal plate 62, the surfaces of the rotating wheels 63 are provided with arc grooves 64, the surfaces of the rotating wheels 63 on one side are all fixedly connected with clamping teeth 65, the heating rod 73 and the heat-conducting steel wire 74 in the sliding groove 71 are driven by the gas cylinder 2 to slide downward in the interior of the body 1, when the two pairs of arc-shaped extrusion blocks 68 and the arc-shaped extrusion block one 69 extrude each other, the shape of the heat-conducting steel wire 74 can be changed, and the foamed plate material can be switched between the wave-shaped edge and the straight edge.

[0041] The surface of the sliding plate 61 is fixedly connected with a limiting sliding rail 66, the lower surface of the sliding plate 61 is fixedly connected with a bidirectional telescopic rod 67, the telescopic ends of the bidirectional telescopic rod 67 are both fixedly connected with arc-shaped extrusion blocks 68, the interior of the arc-shaped extrusion blocks 68 is slidingly connected with L-shaped sliding rods 610, the surfaces of the L-shaped sliding rods 610 are slidingly connected with arc-shaped extrusion block ones 69, the L-shaped sliding rods 610 pass through the arc-shaped extrusion blocks 68 and the arc-shaped extrusion block ones 69 at the same time, the arc-shaped extrusion blocks 68 and the arc-shaped extrusion block ones 69 are clamped on the same axis, the L-shaped sliding rods 610 pass through and are slidingly connected in the interiors of the limiting sliding rail 66 and the arc groove 64, the hot cutting deformation mechanism 7 comprises a sliding groove 71 which is slidingly connected on both sides of the body 1, one end of the sliding groove 71 is fixedly connected with the telescopic end of the gas cylinder 2, the lower end of the sliding plate 61 is fixedly connected with an inclined slot 72, the interior of the sliding groove 71 is slidingly connected with a heating rod 73, the heating rod 73 is symmetrically arranged in the body 1, a heat-conducting steel wire 74 is fixedly connected between the two heating rods 73, the heating rod 73 is driven by the inclined slot 72 to slide in the sliding groove 71, the heating rod 73 is extruded by the inclined slot 72 to slide in the sliding groove 71, so that when the heat-conducting steel wire 74 is extruded, the two heating rods 73 slide inward, thereby ensuring the stability of the heat-conducting steel wire 74 when it is extruded.

[0042] As shown in Figures 1 to 14 ;

[0043] The process of the wide-width low-temperature impact-resistant and bend-resistant PVC co-extrusion foamed plate edge pressing device comprises the following steps:

[0044] S1, when the foamed plate needs to be straightened, the heating rod 73 and the heat-conducting steel wire 74 in the sliding groove 71 are driven by the air cylinder 2 to slide downward in the body 1 to straighten the edges of the foamed plate. When the foamed plate needs to be wavy, the knob 53 is twisted first, and the knob 53 rotates in the numerical horizontal groove sleeve 517, so that the numerical horizontal groove sleeve 517 rotates in time to ensure the accuracy of the number, and the rotating rod 52 is driven to rotate when the knob 53 rotates, the bevel gear one 56 is driven to rotate when the rotating rod 52 rotates, the bevel gear two 58 is driven to rotate when the bevel gear one 56 rotates, the spline telescopic rod 57 is driven to rotate when the bevel gear two 58 rotates, the spring collar 510 is driven to rotate in the inclined groove 512 in the telescopic sleeve 59, the spring collar 510 rotates along the inclined surface of the inclined groove 512 and extrudes the telescopic sleeve 59 to extend downward, and the lower end of the teeth one 513 and the fixed groove 514 are driven to slide downward when the telescopic sleeve 59 extends downward, and the teeth two 515 are driven downward by the telescopic rod 511;

[0045] S2, when the teeth one 513 and the teeth two 515 are driven downward, they will engage with the tooth disc one 54 and the two teeth three 65, at this time the spring collar 510 will continue to rotate and be clamped in the edge of the inclined groove 512, and the telescopic sleeve 59 will continue to rotate, the teeth one 513 will rotate by the telescopic sleeve 59, the teeth two 515 will rotate by the transmission belt 516, the two teeth three 65 will rotate by the rotation of the teeth one 513 and the teeth two 515, the rotating wheel 63 will rotate by the rotation of the two teeth three 65, the arc groove 64 will rotate by the rotation of the rotating wheel 63, the upper end of the L-shaped slide rod 610 will be extruded when the arc groove 64 rotates, and will slide along the limiting slide rail 66, the lower end of the L-shaped slide rod 610 will drive the arc-shaped extrusion block 68 to expand left and right, and the arc-shaped extrusion block one 69 will slide on the surface of the arc-shaped extrusion block 68 by the movement of the bidirectional telescopic rod 67, and will slide along the arc of the arc-shaped extrusion block 68, so that the diameter of the semicircle composed of the arc-shaped extrusion block 68 and the arc-shaped extrusion block one 69 becomes larger, the arc of the front end of the arc-shaped extrusion block 68 and the arc-shaped extrusion block one 69 changes, and the arcs of the arc-shaped extrusion block 68 and the arc-shaped extrusion block one 69 change at the same time, so that the shape of the heat-conducting steel wire 74 can be changed when the two pairs of arc-shaped extrusion blocks 68 and arc-shaped extrusion block one 69 extrude each other, and the edges of the foamed plate can be wavy;

[0046] S3、With this in mind in the rotating rod 52 rotation will also drive the gear plate one 54 rotation, gear plate one 54 drive gear plate two 55 rotation, gear plate two 55 drive screw rod 47 rotation, screw rod 47 rotation drive with the threaded connection of the sliding rod 46 to gear plate two 55 direction of movement, sliding rod 46 in the arc slot 45 inside the sliding, in the sliding at the same time will also drive gear plate two 55 L-shaped support frame 48 on the surface of the fixed plate 51 rotation, sliding rod 46 sliding drive adjustment rod 44 movement, adjustment rod 44 movement will limit eccentric wheel 41 drive connecting rod 42 rotation distance, drive motor 3 drive eccentric wheel 41 rotation, eccentric wheel 41 rotation drive connecting rod 42 pull push rod 43, push rod 43 will pull the sliding plate 61 in the body 1 inside the sliding, drive arc extrusion block 68 and arc extrusion block one 69 on the opposite extrusion arc-shaped staggered arc extrusion block 68 and arc extrusion block one 69 heat-conducting steel wire 74, while the arc of the heat-conducting steel wire 74 by knob 53 drive numerical slot sleeve 517 rotation distance and determine, while in the sliding plate 61 movement drive inclined slot 72 movement, inclined slot 72 drive heating rod 73 in the sliding slot 71, through the inclined slot 72 extrusion heating rod 73, make heating rod 73 in the sliding slot 71 sliding, so that the heat-conducting steel wire 74 is extruded two heating rod 73 will be inside the sliding, to ensure the stability of the heat-conducting steel wire 74 is extruded again.

[0047] The above shows and describes the basic principles of the present application, the main features and advantages of the present application. The technical staff should understand that the industry, the present application is not limited to the above examples, the above examples and described in the specification is only a preferred example of the present application, and is not intended to limit the present application, without departing from the spirit and scope of the present application, the present application will have various changes and improvements, these changes and improvements are within the scope of the claimed present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. Wide low-temperature impact-resistant and bend-resistant PVC co-extrusion foam sheet edge pressing device, comprising a machine body (1), the two sides of the machine body (1) are fixedly connected with air cylinders (2), and the upper surface of the machine body (1) is fixedly connected with a driving motor (3); characterized in that an adjustable transmission ratio proportional control mechanism (4) is rotatably connected in the machine body (1), a clutch adjusting mechanism (5) is arranged in the machine body (1), an arc edge adjustable arc extrusion mechanism (6) is fixedly connected in the machine body (1), and heat cutting deformation mechanisms (7) for edge pressing are slidably connected to the inner sides of the machine body (1); the arc extrusion mechanism (6) comprises a sliding plate (61), the sliding plate (61) is slidably connected in the machine body (1), one end of the sliding plate (61) is hinged to a push rod (43), a horizontal plate (62) is fixedly connected in the machine body (1), the sliding plate (61) and the horizontal plate (62) are both rotatably connected with rotating wheels (63), the rotating wheels (63) are arranged in groups, and are arranged alternately on the sliding plate (61) and the horizontal plate (62), an arc groove (64) is formed in the surface of the rotating wheel (63), and a plurality of clamping teeth (65) are fixedly connected to the surface of each rotating wheel (63) on one side; a limiting sliding rail (66) is fixedly connected to the surface of the sliding plate (61), a bidirectional telescopic rod (67) is fixedly connected to the lower surface of the sliding plate (61), arc extrusion blocks (68) are fixedly connected to the telescopic ends of the bidirectional telescopic rod (67), an L-shaped sliding rod (610) is slidably connected in the arc extrusion block (68), an arc extrusion block one (69) is slidably connected to the surface of the L-shaped sliding rod (610), the L-shaped sliding rod (610) penetrates through the arc extrusion block (68) and the arc extrusion block one (69), the arc extrusion block (68) and the arc extrusion block one (69) are clamped on the same axis, and the L-shaped sliding rod (610) penetrates through the limiting sliding rail (66) and the arc groove (64) and is slidably connected in the limiting sliding rail (66) and the arc groove (64); the heat cutting deformation mechanism (7) comprises a sliding groove (71), the sliding groove (71) is slidably connected on the two sides of the machine body (1), one end of the sliding groove (71) is fixedly connected with the telescopic end of the air cylinder (2), a bevel groove (72) is fixedly connected to the lower end of the sliding plate (61), a heating rod (73) is slidably connected in the sliding groove (71), the heating rods (73) are symmetrically arranged in the machine body (1), and a heat-conducting steel wire (74) is fixedly connected between the two heating rods (73).

2. The wide width low temperature impact and bend resistance PVC co-extrusion foamed sheet edge press device according to claim 1, characterized in that: The proportional control mechanism (4) comprises an eccentric wheel (41), the upper surface center of the eccentric wheel (41) is fixedly connected with the output shaft of the driving motor (3), the bottom of the eccentric wheel (41) is rotatably connected with a connecting rod (42), the upper surface of one end of the connecting rod (42) is rotatably connected with the inner upper end of the machine body (1), the lower surface of one end of the connecting rod (42) is rotatably connected with a push rod (43), the lower end of the push rod (43) is rotatably connected with an adjusting rod (44), the inner upper end of the machine body (1) is fixedly connected with an arc-shaped groove (45), the arc-shaped groove (45) is slidably connected with a sliding rod (46), the surface of the sliding rod (46) is rotatably connected with one end of the adjusting rod (44), the upper end of the sliding rod (46) is provided with a threaded groove and is internally threadedly connected with a threaded rod (47), and one end of the threaded rod (47) is rotatably connected with an L-shaped support frame (48).

3. The wide width low temperature impact and bend resistance PVC co-extrusion foamed sheet edge press device according to claim 2, characterized in that: The clutch adjusting mechanism (5) comprises a fixed plate (51), the fixed plate (51) is fixedly connected in the inside of the machine body (1), the inner side of the machine body (1) is rotatably connected with a rotating rod (52), one end of the rotating rod (52) is fixedly connected with a knob (53), the surface of the knob (53) is rotatably connected with a numerical horizontal groove sleeve (517), the numerical horizontal groove sleeve (517) is rotatably connected on the side surface of the machine body (1) at the same time, the surface of the rotating rod (52) is fixedly connected with a toothed disc one (54), one end of the threaded rod (47) is fixedly connected with a toothed disc two (55), the bottom of the L-shaped support frame (48) is rotatably connected on the surface of the fixed plate (51), the toothed disc one (54) and the toothed disc two (55) are in meshing state, the other end of the rotating rod (52) is fixedly connected with a bevel gear one (56), the surface of the fixed plate (51) is rotatably connected with a spline telescopic rod (57), the upper end of the spline telescopic rod (57) is fixedly connected with a bevel gear two (58), and the lower surface of the fixed plate (51) is fixedly connected with a telescopic sleeve (59).

4. The wide width low temperature impact and bend resistance PVC co-extrusion foamed sheet edge press device according to claim 3, characterized in that: The lower end of the spline telescopic rod (57) is fixedly connected with a spring collar (510), the lower surface of the fixed plate (51) is fixedly connected with a telescopic rod (511), the lower end of the telescopic rod (511) is fixedly connected with a fixed groove (514), the surface of the telescopic sleeve (59) is provided with inclined grooves (512) on both sides, the spring collar (510) is in the inclined grooves (512), the lower end of the telescopic sleeve (59) is fixedly connected with a tooth one (513), the inside of the fixed groove (514) is rotatably connected with a tooth two (515), and the tooth one (513) and the tooth two (515) are in transmission connection with a transmission belt (516).

5. The process for the edge pressing device of wide width low temperature impact resistant and bending resistant PVC co-extrusion foamed sheet, using the edge pressing device of wide width low temperature impact resistant and bending resistant PVC co-extrusion foamed sheet according to claim 4, characterized in that, The method comprises the following steps: S1, first, the clutch adjusting mechanism (5) is used for meshing the tooth one (513), the tooth two (515) and the tooth three (65), then the tooth three (65) is rotated by the knob, the arc-shaped extrusion block (68) and the arc-shaped extrusion block one (69) are deformed, and thus the thermal cutting deformation mechanism (7) adjusts the arc. S2, when the knob (53) is rotated, the proportional control mechanism (4) is also driven to work, changing the distance between the arc-shaped extrusion block (68) and the arc-shaped extrusion block (69) when they are extruded against each other, thereby ensuring the accuracy of the arc; S3, the arc is determined by the rotating distance of the numerical horizontal groove sleeve (517) driven by the knob (53), and when the sliding plate (61) moves, the inclined slot (72) moves, the inclined slot (72) drives the heating rod (73) in the sliding groove (71), and the heating rod (73) is extruded through the inclined slot (72), so that the heating rod (73) slides in the sliding groove (71), so that when the heat-conducting steel wire (74) is extruded, the two heating rods (73) will slide inward, ensuring the stability of the heat-conducting steel wire (74) when it is extruded.

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