Edge folding cotton gin

Abstract

The utility model discloses an edge folding cotton gin, and belongs to the technical field of metal plate edge processing in a rolling mode. The embossing device comprises a rack, a driving compression roller and a driven compression roller are rotatably mounted on the rack, a circle of embossing teeth are arranged on the circumferential surface of each of the driving compression roller and the driven compression roller, grooves among the embossing teeth form embossing extrusion grooves, and the driving compression roller and the driven compression roller are meshed with each other; the driving compression roller is mounted on a driving shaft, the driving shaft is connected with a power source, and the driven compression roller is mounted on a driven shaft. The edge folding and arc rolling device further comprises an edge folding and arc rolling wheel I and an edge folding and arc rolling wheel II, wherein the edge folding and arc rolling wheel I and the edge folding and arc rolling wheel II are oppositely arranged. According to the utility model, the working efficiency and the working quality of edge folding and embossing of the metal sheet can be improved.

Description

Technical Field

[0001] This utility model relates to a folding and embossing machine, belonging to the technical field of edge processing of metal plates by rolling. Background Technology

[0002] Currently, insulation work on pipes and flanges requires wrapping them with thin metal sheets such as stainless steel or aluminum, especially to form metal cylinders with reduced diameter ends. Multiple metal cylinders are then connected by interlocking circular edges with reduced diameters. An edge-rolling machine quickly forms these reduced-diameter circular connecting edges by folding and rolling the edges of the thin metal sheets.

[0003] However, the edge-rolling machines currently on the market have one or more of the following problems:

[0004] 1. Low work efficiency, with low folding and embossing efficiency. 2. Inability to properly fold and emboss large or small diameters, resulting in low embossing quality and high rework rate. 3. Often requires two processes: first, pressing the bending groove, then performing a second set of processes for folding and embossing. One or more of these problems increase processing and time costs, and also affect embossing quality and work efficiency. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art and in view of at least one of the above technical problems, this utility model provides a folding and embossing machine to improve work efficiency and work quality.

[0006] This utility model is achieved through the following technical solution: a folding and embossing machine, including a frame, on which an active pressure roller and a driven pressure roller are rotatably mounted. Both the active and driven pressure rollers are provided with a ring of embossing teeth on their circumferences, and the grooves between the embossing teeth form embossing extrusion grooves. The active and driven pressure rollers mesh with each other. The active pressure roller is mounted on a drive shaft, which is connected to a power source, and the driven pressure roller is mounted on a driven shaft.

[0007] In some embodiments of this disclosure, the end of the driving pressure roller is provided with a folding and arc-forming wheel I, and the end of the driven pressure roller is provided with a folding and arc-forming wheel II. The folding and arc-forming wheel I and the folding and arc-forming wheel II are arranged opposite to each other. The folding and arc-forming wheel I is mounted on the drive shaft, and the folding and arc-forming wheel II is mounted on the driven shaft. The folding and arc-forming wheel I is a convex wheel or a concave wheel, and the concave and convex shape of the folding and arc-forming wheel II matches the shape of the folding and arc-forming wheel I.

[0008] In some embodiments of this disclosure, the folding and rolling wheel I is mounted on the drive shaft in an independently rotatable manner, and the folding and rolling wheel II is mounted on the driven shaft in an independently rotatable manner.

[0009] In some embodiments of this disclosure, the front end of the folding and rolling wheel II is equipped with a corner wheel, which is a frustum-shaped wheel with a larger front end and a smaller inner end.

[0010] In some embodiments of this disclosure, the active pressure roller and the driven pressure roller are arranged vertically, or the active pressure roller and the driven pressure roller are arranged horizontally.

[0011] In some embodiments of this disclosure, the width of the tip of the embossing tooth is greater than the width of the root, and the width of the opening of the embossing extrusion groove is less than the width of the space inside the groove.

[0012] In some embodiments of this disclosure, the knurled teeth form a circular arc slope that tapers towards the front end in the axial direction.

[0013] In some embodiments of this disclosure, the driven shaft of the driven pressure roller is mounted on the frame via a front support end and a rear support end. The front support end is movably connected to the frame, and the rear support end is slidably connected to the frame. An adjustment assembly for adjusting the rear support end is mounted on the frame. A hinge fulcrum is provided between the driven pressure roller and the frame, and the hinge fulcrum is located on the side of the front end of the driven pressure roller near the engagement point of the driving pressure roller.

[0014] In some embodiments of this disclosure, the active pressure roller and the driven pressure roller are arranged vertically, and the hinge fulcrum is two short shafts located on both sides of the driven pressure roller and hinged to the frame. The two short shafts are on the same axis, and each short shaft is connected to a support rod through a rocker arm. The support rod is located at the lower end of the front support end.

[0015] In some embodiments of this disclosure, a feeding guide baffle is provided on one side of the feeding port of the active pressure roller and the driven pressure roller. The feeding guide baffle includes an inclined plate mounted on the frame, and a guide groove is provided on the inclined plate. The arrangement direction of the inclined plate and the guide groove is consistent with the feeding direction.

[0016] In some embodiments of this disclosure, the inclined plate is equipped with an insert plate, which is inserted into an insert plate slot on the frame, and an adjusting fastening screw is installed on the insert plate slot.

[0017] In some embodiments of this disclosure, an adjusting roller is provided on one side of the discharge port of the active pressure roller and the driven pressure roller, and the adjusting roller is mounted on the frame in a fixed or adjustable manner.

[0018] In some embodiments of this disclosure, the power source is a motor or a crank handle, the crank handle being connected to the drive shaft of the active pressure roller; the motor is connected to the drive shaft via a reducer and a transmission system.

[0019] The beneficial effects of this utility model are:

[0020] This invention utilizes an active pressure roller to drive a driven pressure roller in a meshing process for embossing, forming the required cylindrical metal insulation cover, which is easy to install in the desired environment. Since the driven pressure roller has no power of its own and requires the active pressure roller to mesh with it, jamming is less likely to occur, thus improving work efficiency and embossing quality.

[0021] This invention features two bending and folding rollers, I and II, which simultaneously create bending grooves on the thin metal sheet during the folding process. This results in smoother bending and reduces or prevents excessive stress concentration during bending, thus preventing quality issues such as cracking and deformation. The bending grooves also reduce stress distribution, improving bending quality and precision while minimizing defects. In contrast, existing technologies require a separate folding groove rolling process before bending and folding. This invention combines these two processes into a single step, reducing operational steps, increasing efficiency, and saving time and labor costs.

[0022] This invention features a feeding guide baffle on one side of the feeding port, which guides the thin metal sheet and helps determine the optimal feeding position. The position of the feeding guide baffle determines the embossing length. By providing an adjustable feeding guide baffle, the embossing length can be adjusted, expanding the application range of this invention.

[0023] The driven pressure roller of this invention is adjustable, which can adjust the embossing depth as needed, thus expanding the scope of application of this invention, and at the same time making the structure more reasonable.

[0024] This invention can process metal cylindrical covers of very small or very large size, and can complete folding and embossing processes for larger or smaller diameters, thus having a wider range of applications.

[0025] This invention offers higher work efficiency, increasing it by more than three times, and results in more uniform embossing, a smoother workflow, and higher finished product quality. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the tooth profiles of the active pressure roller and the driven pressure roller of this utility model;

[0029] Figure 3 This is a three-dimensional schematic diagram of the tooth profiles of the active pressure roller and the driven pressure roller of this utility model;

[0030] Figure 4 This is a top-view perspective view of this utility model;

[0031] Figure 5 This is an enlarged view of the feeding guide baffle part of this utility model;

[0032] Figure 6 This is a perspective view of this utility model from one side;

[0033] Figure 7 This is a perspective view of the present invention from another side.

[0034] Figure 8 This is an internal cross-sectional view of the present invention;

[0035] Figure 9 This is a top view of the present invention;

[0036] Figure 10 This is a schematic diagram of the crank drive of this utility model. Detailed Implementation

[0037] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is not intended to limit this utility model or its application or use in any way. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0038] Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification.

[0039] like Figures 1 to 10 The image shows a folding and embossing machine, reference. Figure 1The machine includes a frame on which a drive roller 1 and a driven roller 2 are rotatably mounted. Both the drive roller and the driven roller have a ring of embossing teeth 5 on their circumferences. The grooves between the embossing teeth form embossing extrusion grooves 6. The drive roller and the driven roller mesh with each other. The drive roller 1 is mounted on a drive shaft 3, which is connected to a power source. The driven roller 2 is mounted on a driven shaft 4. In use, a power source drives the drive shaft 3 to rotate, which in turn drives the active pressure roller 1 to rotate. The sheet metal, such as iron or aluminum sheet, used for insulation is collectively referred to as metal sheet. The metal sheet is fed between the active pressure roller 1 and the driven pressure roller 2. While the metal sheet is being fed in, it is being folded. Simultaneously, the active pressure roller 1 drives the metal sheet and the driven pressure roller 2 to rotate. The meshing between the active and driven pressure rollers performs embossing. As the embossing increases, the radius of the metal sheet decreases, forming the required cylindrical metal insulation cover. The ends of the cylindrical metal insulation cover have tapered folds and embossing, facilitating installation in the desired environment. Because the driven pressure roller has no power of its own and requires the active pressure roller to mesh with it, jamming is less likely.

[0040] In some embodiments of this disclosure, reference is made to Figure 1 , Figure 4 , Figure 7 Figure 8 shows that the end of the active pressure roller 1 is equipped with a bending and folding roller I7, and the end of the driven pressure roller 2 is equipped with a bending and folding roller II8. The bending and folding roller I7 and the bending and folding roller II8 are arranged opposite to each other. The bending and folding roller I7 is mounted on the drive shaft 3, and the bending and folding roller II8 is mounted on the driven shaft 4. The bending and folding roller I7 and the bending and folding roller II8 allow for the simultaneous rolling of bending grooves into the thin metal sheet, resulting in smoother bending. The bending grooves reduce or prevent excessive stress concentration during bending, thus preventing quality problems such as cracking and deformation. The bending grooves also reduce stress distribution in the material, improving bending quality and accuracy while reducing defects. In existing technologies, the bending groove rolling process must be performed first, followed by bending and folding. This invention combines these two processes into one, reducing operational steps, improving work efficiency, and saving time and labor costs.

[0041] The bending and folding roller I7 is either a convex or concave roller, and the convex and concave shapes of the bending and folding roller II8 match the shape of the bending and folding roller I7. As shown in one embodiment, when the bending and folding roller I7 is a convex roller, the bending and folding roller II8 is a concave roller, and vice versa. The bending and folding roller I7 and the bending and folding roller II8 cooperate with each other to roll out the bending groove.

[0042] In some embodiments of this disclosure, the bending and folding roller I7 is mounted on the drive shaft 3 in an independently rotatable manner, and the bending and folding roller II8 is mounted on the driven shaft 4 in an independently rotatable manner. This independent rotation of the bending and folding roller I7 and the bending and folding roller II8 means that they do not rotate simultaneously with the driving pressure roller 1 and the driven pressure roller 2. For example, the bending and folding roller I7 is separated from the driving pressure roller 1, and a bearing is installed between the bending and folding roller I7 and the drive shaft 3. The bending and folding roller I7 rotates due to the friction generated by the movement of the metal sheet, and the bending and folding roller II8 does the same. The rotation of the bending and folding roller I7 and the bending and folding roller II8 is separated from that of the driving pressure roller 1 and the driven pressure roller 2, respectively, creating a differential speed effect, reducing the likelihood of jamming, and resulting in a better bending groove formation.

[0043] In some embodiments of this disclosure, the front end of the folding and rounding wheel I7 or folding and rounding wheel II8 is equipped with a flanging wheel 9, which is a frustum-shaped wheel with a larger front end and a smaller inner end. The flanging wheel 9 can be integrally set with the folding and rounding wheel I7 or folding and rounding wheel II8. The flanging wheel 9 is installed next to the concave wheel. The flanging wheel 9 can assist in making the folding action smoother, the folding effect better, and making it easier to form a 90-degree fold. The flanging wheel 9 provides a certain guiding effect for the folding and can also cooperate with the hinge fulcrum 16 in the later embodiments to form a rotation fulcrum.

[0044] In some embodiments of this disclosure, the active pressure roller 1 and the driven pressure roller 2 are arranged vertically, or they can be arranged horizontally. When arranged vertically, material is fed horizontally; when arranged horizontally, material is fed vertically.

[0045] In some embodiments of this disclosure, reference is made to Figure 1 , Figure 2 , Figure 3 The width of the tip 5-1 of the embossing tooth 5 is greater than the width of the root 5-2, and the width of the opening 6-1 of the embossing extrusion groove 6 is less than the width of the inner space 6-2. Unlike similar V-shaped grooves on the market where the opening width is greater than the inner width, the shapes of the embossing tooth 5 and the embossing extrusion groove 6 of this invention make the inner space of the embossing extrusion groove 6 larger than the opening, which can accommodate more deformed metal sheets, resulting in a better extrusion effect, less jamming, and the formation of deeper embossing, thereby enabling the formation of a smaller cylindrical folding diameter.

[0046] In some embodiments of this disclosure, reference is made to Figure 1 , Figure 2 , Figure 3The embossing teeth 5 form an arc slope 5-3 that tapers towards the front end in the axial direction, making it easier for the thin metal sheet to pass through. At the same time, it matches the depth of embossing, with a deeper embossing depth at the rear end of the embossing teeth 5 and a shallower embossing depth at the front end of the embossing teeth 5. It also allows the thin metal sheet to gradually disengage during embossing.

[0047] In some embodiments of this disclosure, reference is made to Figure 1 , Figure 4 , Figures 6-8 The driven shaft 4 of the driven pressure roller 2 is mounted on the frame via a front support end 14 and a rear support end 15. The front support end 14 is movably connected to the frame, and the rear support end 15 is slidably connected to the frame. The frame is equipped with an adjustment assembly 17 for adjusting the rear support end 15. The adjustment assembly 17 can be an adjustment screw. A hinge point 16 is provided between the driven pressure roller 2 and the frame. The hinge point 16 is located on the front end of the driven pressure roller 2 near the engagement point of the driving pressure roller 1. As shown in the figure, the frame on both sides of the driven pressure roller 2 is equipped with side plates. Pins are mounted on the side plates on both sides. The pins are located above the front end of the driven pressure roller 2 and do not interfere with the rotational movement of the driven pressure roller 2, the folding and rolling wheel Ⅱ8, or the chamfering wheel 9, thus forming the hinge point 16. When the engagement depth needs to be adjusted, the feed depth of the adjustment component 17 is adjusted to push the rear support end 15 of the driven pressure roller 2 closer to or further away from the driving pressure roller 1. With the hinge fulcrum 16 as the rotation center, the front support end 14 rotates accordingly. With the hinge fulcrum 16 at this limited position as the rotation center, the engagement between the driven pressure roller 2 and the driving pressure roller 1 can be kept in place without misalignment. If the bottom of the rear support end 15 is used as the fulcrum, the engagement between the driven pressure roller 2 and the driving pressure roller 1 will be misaligned.

[0048] In some embodiments of this disclosure, the active pressure roller 1 and the driven pressure roller 2 are arranged vertically. The hinge fulcrum 16 consists of two short shafts hinged to the frame on both sides of the driven pressure roller 2. The two short shafts are on the same axis. Each short shaft is connected to a support rod 16-2 via a rocker arm 16-1. The support rod 16-2 is integrated with the hinge fulcrum 16 via the rocker arm 16-1 and moves with it. The support rod 16-2 is located at the lower end of the front support end 14 and provides a certain support function.

[0049] In some embodiments of this disclosure, reference is made to Figure 4 , Figure 5 , Figures 6-9A feeding guide baffle 10 is provided on one side of the feeding port of the active pressure roller 1 and the driven pressure roller 2. The feeding guide baffle 10 guides the thin metal sheet, helps determine the optimal feeding effect, and prevents the thin metal sheet from curling. The position of the feeding guide baffle 10 determines the embossing length. The feeding guide baffle 10 includes an inclined plate 10-1 mounted on the frame. The inclined plate 10-1 has a guide groove 10-2. The arrangement direction of the inclined plate 10-1 and the guide groove 10-2 is consistent with the feeding direction. The guide groove 10-2 can prevent the thin metal sheet from curling. The guide groove 10-2 is preferably designed as an arc or triangle to reduce the feeding resistance of the thin metal sheet.

[0050] In some embodiments of this disclosure, the inclined plate 10-1 is equipped with an insert plate 11, which is inserted into an insert plate slot 12 on the frame. An adjusting screw 13 is installed on the insert plate slot 12. By loosening or tightening the adjusting screw 13, the extension / retraction length of the insert plate 11 is determined, the position of the feed guide baffle 10 is adjusted and fixed, and thus the calendering length is adjusted. For example, the calendering adjustment length can be from 2.5 cm to 7 cm.

[0051] In some embodiments of this disclosure, reference is made to 4. Figures 6-7 An adjusting roller 18 is provided on one side of the discharge port of the active pressure roller 1 and the driven pressure roller 2. The adjusting roller 18 is mounted on the frame in a fixed or adjustable manner. The adjusting roller 18 can limit and assist in pressing the smaller diameter metal cylinder when bending it.

[0052] In some embodiments of this disclosure, the power source is a motor 20 or a crank handle 19, the crank handle 19 being connected to the drive shaft 3 of the active pressure roller 1 via a speed change mechanism; the motor 20 is connected to the drive shaft 3 via a reducer 21 and a transmission system.

[0053] like Figure 7 , Figure 8 In the illustrated embodiment, the active pressure roller 1 and the driven pressure roller 2 are arranged vertically. The power source is a motor 20. The rear of the drive shaft 3 of the active pressure roller 1 is mounted on the frame via two bearing supports 22. The motor 20 drives a reducer 21 via a belt drive mechanism. The power output shaft of the reducer 21 is connected to a transmission shaft 24 via gear transmission. The transmission shaft 24 transmits power to the drive shaft 3 via a chain drive mechanism 23. Alternatively, it can be arranged as follows: Figure 10 As shown, the crank handle 19 is directly connected to the drive shaft 3 to achieve manual operation. Figure 7 An embodiment is also shown in which the crank handle 19 is mounted on the reducer 21 in place of the motor.

[0054] The above description is only an exemplary embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A folding and embossing machine, characterized in that: The machine includes a frame on which an active pressure roller (1) and a driven pressure roller (2) are rotatably mounted. Both the active and driven pressure rollers have a ring of knitting teeth (5) on their circumferences. The grooves between the knitting teeth form a knitting extrusion groove (6). The active and driven pressure rollers mesh with each other. The active pressure roller (1) is mounted on a drive shaft (3), which is connected to a power source. The driven pressure roller (2) is mounted on a driven shaft (4).

2. The folding and embossing machine according to claim 1, characterized in that: The end of the active pressure roller (1) is provided with a folding and rolling wheel I (7), and the end of the driven pressure roller (2) is provided with a folding and rolling wheel II (8). The folding and rolling wheel I (7) and the folding and rolling wheel II (8) are arranged opposite to each other. The folding and rolling wheel I (7) is mounted on the drive shaft (3), and the folding and rolling wheel II (8) is mounted on the driven shaft (4). The folding and rolling wheel I (7) is a convex wheel or a concave wheel, and the concave and convex shape of the folding and rolling wheel II (8) matches the shape of the folding and rolling wheel I (7).

3. The folding and embossing machine according to claim 2, characterized in that: The folding and rolling wheel I (7) is mounted on the drive shaft (3) in an independently rotatable manner, and the folding and rolling wheel II (8) is mounted on the driven shaft (4) in an independently rotatable manner.

4. The folding and embossing machine according to claim 2, characterized in that: The front end of the folding and rolling wheel II (8) is equipped with a corner wheel (9), which is a frustum-shaped wheel with a large front end and a small inner end.

5. The folding and embossing machine according to claim 1 or 2, characterized in that: The active pressure roller (1) and the driven pressure roller (2) are arranged vertically, or the active pressure roller (1) and the driven pressure roller (2) are arranged horizontally.

6. The folding and embossing machine according to claim 1, characterized in that: The width of the tip (5-1) of the embossed tooth (5) is greater than the width of the root (5-2), and the width of the groove (6-1) of the embossed extrusion groove (6) is less than the width of the space inside the groove (6-2).

7. The folding and embossing machine according to claim 1 or 6, characterized in that: The knurled teeth (5) form a circular arc slope (5-3) that tapers towards the front end in the axial direction.

8. The folding and embossing machine according to claim 1, characterized in that: The driven shaft (4) of the driven pressure roller (2) is mounted on the frame through the front support end (14) and the rear support end (15). The front support end (14) is movably connected to the frame, and the rear support end (15) is slidably connected to the frame. The frame is equipped with an adjustment component (17) for adjusting the rear support end (15). A hinge fulcrum (16) is provided between the driven pressure roller (2) and the frame. The hinge fulcrum (16) is located on the side of the front end of the driven pressure roller (2) near the engagement point of the driving pressure roller (1).

9. The folding and embossing machine according to claim 8, characterized in that: The active pressure roller (1) and the driven pressure roller (2) are arranged vertically. The hinge fulcrum (16) is two short shafts located on both sides of the driven pressure roller (2) and hinged on the frame. The two short shafts are on the same axis. Each short shaft is connected to the support rod (16-2) through the rocker arm (16-1). The support rod (16-2) is located at the lower end of the front support end (14).

10. The folding and embossing machine according to claim 1, characterized in that: A feeding guide baffle (10) is provided on one side of the feeding port of the active pressure roller (1) and the driven pressure roller (2). The feeding guide baffle (10) includes an inclined plate (10-1) installed on the frame. The inclined plate (10-1) has a guide groove (10-2). The arrangement direction of the inclined plate (10-1) and the guide groove (10-2) is consistent with the feeding direction.

11. The folding and embossing machine according to claim 10, characterized in that: The inclined plate (10-1) is equipped with a plate (11), which is inserted into the plate slot (12) on the frame. The plate slot (12) is equipped with an adjusting fastening screw (13).

12. The folding and embossing machine according to claim 1, characterized in that: An adjusting roller (18) is provided on one side of the discharge port of the active pressure roller (1) and the driven pressure roller (2). The adjusting roller (18) is installed on the frame in a fixed or adjustable manner.

13. The folding and embossing machine according to claim 1, characterized in that: The power source is a motor (20) or a crank (19), the crank (19) being connected to the drive shaft (3) of the active pressure roller (1); the motor (20) is connected to the drive shaft (3) through a reducer (21) and a transmission system.

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