A round cornering machine cutter driving mechanism
By designing a corner rounding machine cutter drive mechanism, a set of drive cylinders and track plates are used to achieve continuous cutting action, which solves the problems of bulky equipment structure and high failure rate in the existing technology, and achieves compact, low-cost and efficient cutting effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 东莞市爱克斯曼机械有限公司
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-21
AI Technical Summary
The existing corner rounding machine cutter drive requires three sets of drive units, resulting in a bulky equipment structure, large footprint, high cost, high failure rate, and cumbersome maintenance procedures.
Design a corner rounding machine cutter drive mechanism. A set of drive cylinders cooperates with a track plate and a universal ball to realize the continuous cutting, rounding, and cutting action of the cutter. The drive structure is simplified by sliding and rotating the triangular plate and the track plate.
This design achieves a compact equipment structure, reduces equipment costs and failure rates, minimizes maintenance expenses and time, and ensures smooth cuts, thus preventing mattress damage.
Smart Images

Figure CN224527366U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mattress processing equipment, and in particular to a corner rounding machine cutter drive mechanism. Background Technology
[0002] Mattresses play a vital role in improving people's sleep quality and are widely loved. Various types of mattresses have entered every household. In the production of various mattresses such as coconut fiber mattresses, jute mattresses, and hard cotton mattresses, a rounding process is required for the semi-finished products to enhance their aesthetics and usability. On a rounding machine, the mattress is fixed in place, and the cutter first enters, contacting one right-angle edge of the mattress. Then, the cutter moves along an arc-shaped trajectory, cutting a rounded corner. Finally, the cutter exits from the other right-angle edge, detaching from the mattress and completely removing the cut material. However, because the entry, rounding, and exit trajectories are different, three sets of drive devices are needed to drive the cutter's movement, resulting in a bulky equipment structure, large footprint, high production costs, high failure rate, and cumbersome maintenance procedures. Therefore, it is necessary to develop a cutter drive mechanism for a rounding machine to solve these problems. Utility Model Content
[0003] The purpose of this invention is to provide a corner rounding machine cutter drive mechanism to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A corner rounding machine cutter drive mechanism includes a mounting base, a track plate, a movable top plate, a drive assembly, a cylinder mounting bracket, a first universal ball joint, and a second universal ball joint. The track plate is fixed above the mounting base and has a first and a second sliding groove. The first sliding groove includes a transverse groove and a first longitudinal groove. The right end of the transverse groove connects to the front end of the first longitudinal groove to form a corner. The second sliding groove includes an arc-shaped groove, an inner groove, an outer groove, and a second longitudinal groove. The arc-shaped groove rotates around the corner, with its first end corresponding to the front side of the transverse groove. The front end of the second longitudinal groove connects to the end of the arc-shaped groove. The arc-shaped groove has a first arc-shaped surface on one side near the corner and a second arc-shaped surface on the other side. The inner groove is located below the first arc-shaped surface, and the outer groove is located above the second arc-shaped surface and corresponds to the area between the inner groove and the end of the arc-shaped groove. The cylinder mounting bracket is fixed to the front side of the mounting base. The drive assembly includes a triangular plate, a first connecting shaft, a second connecting shaft, a third connecting shaft, a first bearing, and a second... The bearing, third bearing, drive shaft, and drive cylinder are respectively located on the upper and lower sides of the track plate. The upper ends of the first, second, and third connecting shafts are fixed to the movable top plate, and the lower ends of the first, second, and third connecting shafts are fixed to the three corners of the triangular plate. The first bearing is fixed on the first connecting shaft and slidably connected to the first groove. The second bearing is fixed on the second connecting shaft and slidably connected to the upper side of the arc groove. The third bearing is fixed on the third connecting shaft and slidably connected to the lower side of the arc groove. The second bearing corresponds to the first end of the arc groove, and the third bearing corresponds to the inner groove. The upper end of the drive shaft is fixed below the triangular plate. The front and rear ends of the drive cylinder are hinged to the cylinder mounting bracket and the drive shaft, respectively. The first universal ball is fixed below the movable top plate, and its movable end contacts the upper surface of the track plate. The second universal ball is fixed above the triangular plate, and its movable end contacts the lower surface of the track plate. Multiple sets of the first and second universal balls are provided.
[0006] Further description of the present invention: The angle between the first longitudinal groove and the transverse groove is an obtuse angle.
[0007] Further description of this utility model: The cylinder mounting bracket includes a support base plate, an adjusting base plate, and a hinge bracket. The support base plate is fixed on the mounting base. The support base plate has a first strip-shaped hole and a second strip-shaped hole along its length. The adjusting base plate has an arc-shaped hole and a locking hole. The adjusting base plate is fixed to the support base plate by screws passing through the arc-shaped hole and the first strip-shaped hole. The adjusting base plate is fixed to the support base plate by screws passing through the locking hole and the second strip-shaped hole. The hinge bracket is fixed on the adjusting base plate, and the front end of the driving cylinder is hinged to the hinge bracket.
[0008] Further description of this utility model: The movable top plate is circular in shape.
[0009] The beneficial effects of this utility model are as follows: by driving the triangular plate with only one set of drive cylinders and cooperating with the track plate, the cutter can continuously perform the actions of cutting, rounding, and exiting, which not only makes the cuts smooth, but also makes the equipment structure more compact, the equipment cost lower, the equipment failure rate is reduced accordingly, and its maintenance costs and time are also reduced accordingly. Attached Figure Description
[0010] Fig. 1 This is an overall structural diagram of the present invention;
[0011] Fig. 2 This is a structural diagram (from a bottom view) of the track plate, drive assembly, and second universal ball in this utility model.
[0012] Fig. 3 This is a structural diagram (top view) of the track plate, drive assembly and first omnidirectional ball in this utility model.
[0013] Fig. 4 This is a structural diagram of the track slab in this utility model;
[0014] Fig. 5 This is a structural diagram of the cylinder mounting bracket in this utility model;
[0015] Explanation of reference numerals in the attached figures:
[0016] 1. Mounting base; 2. Track plate; 21. First slide groove; 211. Horizontal groove; 212. First longitudinal groove; 213. Corner position; 22. Second slide groove; 221. Arc groove; 2211. First arc surface; 2212. Second arc surface; 222. Inner groove; 223. Outer groove; 224. Second longitudinal groove; 3. Movable top plate; 4. Drive assembly; 41. Triangular plate; 42. First connecting shaft; 43. Second connecting shaft; 44. Third connecting shaft; 45. First bearing; 46. Second bearing; 47. Third bearing; 48. Drive shaft; 49. Drive cylinder; 5. Cylinder mounting bracket; 51. Support base plate; 511. First strip hole; 512. Second strip hole; 52. Adjustable base plate; 521. Arc hole; 522. Lock hole; 53. Hinge bracket; 6. First universal ball; 7. Second universal ball. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings:
[0018] like Figs. 1 to 5As shown, a corner rounding machine cutter drive mechanism includes a mounting base 1, a track plate 2, a movable top plate 3, a drive assembly 4, a cylinder mounting bracket 5, a first universal ball joint 6, and a second universal ball joint 7. The track plate 2 is fixed above the mounting base 1. The track plate 2 has a first sliding groove 21 and a second sliding groove 22. The first sliding groove 21 includes a transverse groove 211 and a first longitudinal groove 212. The right end of the transverse groove 211 connects with the front end of the first longitudinal groove 212 to form a corner position 213. The second sliding groove 22 includes an arc-shaped groove 221, an inner groove 222, an outer groove 223, and a second longitudinal groove 224. The arc-shaped groove 221 connects with the corner position 213. As the rotation center, the first end of the arc-shaped groove 221 corresponds to the front side of the transverse groove 211. The front end of the second longitudinal groove 224 is connected to the end of the arc-shaped groove 221. A first arc-shaped surface 2211 is provided on one side near the corner 213, and a second arc-shaped surface 2212 is provided on the other side. An inner groove 222 is provided on the lower side of the first arc-shaped surface 2211, and an outer groove 223 is provided on the upper side of the second arc-shaped surface 2212 and corresponds to the space between the inner groove 222 and the end of the arc-shaped groove 221. The cylinder mounting bracket 5 is fixed on the front side of the mounting base 1. The drive assembly 4 includes a triangular plate 41, a first connecting shaft 42, and a second connecting shaft 43. 3. A third connecting shaft 44, a first bearing 45, a second bearing 46, a third bearing 47, a drive shaft 48, and a drive cylinder 49; a movable top plate 3 and a triangular plate 41 correspond to the upper and lower sides of the track plate 2, respectively; the upper ends of the first connecting shaft 42, the second connecting shaft 43, and the third connecting shaft 44 are all fixed to the movable top plate 3; the lower ends of the first connecting shaft 42, the second connecting shaft 43, and the third connecting shaft 44 are respectively fixed to the three corners of the triangular plate 41; the first bearing 45 is fixed to the first connecting shaft 42 and slidably connected to the first sliding groove 21; the second bearing 46 is fixed to the second connecting shaft 43 and slidably connected to the upper part of the arc-shaped groove 221. The system features a side-sliding connection. The third bearing 47 is fixed on the third connecting shaft 44 and slidably connected to the lower side of the arc-shaped groove 221. The second bearing 46 corresponds to the first end of the arc-shaped groove 221, and the third bearing 47 corresponds to the inner groove 222. The upper end of the drive shaft 48 is fixed below the triangular plate 41. The front and rear ends of the drive cylinder 49 are hinged to the cylinder mounting bracket 5 and the drive shaft 48, respectively. The first universal ball 6 is fixed below the movable top plate 3, and its movable end contacts the upper surface of the track plate 2. The second universal ball 7 is fixed above the triangular plate 41, and its movable end contacts the lower surface of the track plate 2. Multiple sets of the first universal ball 6 and the second universal ball 7 are provided.
[0019] The cutter drive mechanism of this design is used on a corner rounding machine. A cutter mechanism is fixedly installed above the movable top plate 3. The cutter on the cutter mechanism is outside the first connecting shaft 42. A mattress is placed on the corner rounding machine. In the initial state, the cutter corresponds to the outside of the right-angled side of the mattress and has a certain angle with the right-angled side. The first bearing 45 corresponds to the left end of the transverse groove 211, the second bearing 46 corresponds to the first end of the arc groove 221, and the third bearing 47 corresponds to the inner groove 222. The drive cylinder 49 moves the drive shaft 48, thereby driving the triangular plate 41 to move rearward. The movable top plate 3 and the triangular plate 41 slide on the track plate 2 via the first universal ball 6 and the second universal ball 7, respectively. As the triangular plate 41 moves, the first connecting shaft 42 moves to the corner position 213 within the transverse groove 211, and the third connecting shaft 44 moves to the right, disengaging from the inner groove 222 and entering the arc groove 221. During this process… The movable top plate 3 moves to the right and rotates clockwise, bringing the cutter closer to the right-angled edge of the mattress and swinging it until it is nearly parallel to the right-angled edge. Then, the first connecting shaft 42 rotates at the corner position 213, and the second bearing 46 and the third bearing 47 slide towards the end within the arc groove 221 until the third bearing 47 reaches the end of the arc groove 221. During this process, the movable top plate 3 rotates counterclockwise around the first connecting shaft 42, causing the cutter to cut a rounded corner from the right-angled edge on the front side of the mattress to the right right-angled edge. Then, the first connecting shaft 42 moves from the corner position 213 to the rear end of the first longitudinal groove 212, the second bearing 46 moves to the right into the outer groove 223, and the third connecting shaft 44 moves into the second longitudinal groove 224. During this process, the movable top plate 3 moves backward a certain distance, causing the cutter to detach from the right right-angled edge of the mattress, allowing the cut material to fall off completely. By adjusting the direction and length of the first longitudinal groove 212, the second longitudinal groove 224, and the outer groove 223, the swing direction of the cutter during the cutting process can be controlled to meet production requirements.
[0020] The advantage of this design is that the triangular plate 41 is driven by only one set of drive cylinders 49, and by cooperating with the track plate 2, the cutter can continuously perform the actions of feeding, rounding, and exiting. This not only makes the cuts smooth, but also makes the equipment structure more compact, the equipment cost lower, the equipment failure rate is reduced accordingly, and its maintenance costs and time are also reduced.
[0021] The angle between the first longitudinal groove 212 and the transverse groove 211 is an obtuse angle, so that the cutter and the right-angle side of the mattress have a certain angle when the cutter is in and out. Before the cutter starts, it can maintain a certain distance from the mattress, so as to avoid the cutter directly touching the mattress and damaging the mattress when it starts. When the cutter is out, the cutter can leave the mattress by a certain distance from the right-angle side, so as to avoid the cutter touching the mattress after the rounded corner is cut, which would damage the mattress.
[0022] The cylinder mounting bracket 5 includes a support base plate 51, an adjusting base plate 52, and a hinge bracket 53. The support base plate 51 is fixed on the mounting base 1. The support base plate 51 has a first strip hole 511 and a second strip hole 512 along its length. The adjusting base plate 52 has an arc hole 521 and a locking hole 522. The adjusting base plate 52 is fixed to the support base plate 51 by screws passing through the arc hole 521 and the first strip hole 511. The adjusting base plate 52 is fixed to the support base plate 51 by screws passing through the locking hole 522 and the second strip hole 512. The hinge bracket 53 is fixed to the adjusting base plate 52. The front end of the drive cylinder 49 is hinged to the hinge bracket 53.
[0023] The adjusting base plate 52 is fixed to the supporting base plate 51 by screws passing through the locking hole 522 and the second strip hole 512, which can adjust the position of the adjusting base plate 52 on the supporting base plate 51. The adjusting base plate 52 is fixed to the supporting base plate 51 by screws passing through the arc hole 521 and the first strip hole 511, which can adjust the placement angle of the adjusting base plate 52 relative to the supporting base plate 51, thereby adjusting the placement position and placement angle of the drive cylinder 49.
[0024] The movable top plate 3 is circular in shape to avoid the appearance of corners on the outside of the movable top plate 3, thereby improving its safety during the movement and rotation of the movable top plate 3.
[0025] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.
Claims
1. A corner rounding machine cutter drive mechanism, characterized in that: The system includes a mounting base, a track plate, a movable top plate, a drive assembly, a cylinder mounting bracket, a first universal ball joint, and a second universal ball joint. The track plate is fixed above the mounting base. The track plate has a first sliding groove and a second sliding groove. The first sliding groove includes a transverse groove and a first longitudinal groove. The right end of the transverse groove connects to the front end of the first longitudinal groove, forming a corner. The second sliding groove includes an arc-shaped groove, an inner groove, an outer groove, and a second longitudinal groove. The arc-shaped groove rotates around the corner, and its first end corresponds to the front side of the transverse groove. The front end of the second longitudinal groove is connected to the end of the arc-shaped groove. A first arc-shaped surface is provided on one side near the corner of the arc-shaped groove, and a second arc-shaped surface is provided on the other side. The inner groove is located on the lower side of the first arc-shaped surface, and the outer groove is located on the upper side of the second arc-shaped surface, corresponding to the space between the inner groove and the end of the arc-shaped groove. The cylinder mounting bracket is fixed to the front side of the mounting base. The drive assembly includes a triangular plate, a first connecting shaft, a second connecting shaft, a third connecting shaft, a first bearing, a second bearing, a third bearing, a drive shaft, and a drive cylinder. The movable top plate and the triangular plate correspond to the upper and lower sides of the track plate, respectively. The upper ends of the first connecting shaft, the second connecting shaft, and the third connecting shaft are all fixed to the movable top plate. The lower ends of the first connecting shaft, the second connecting shaft, and the third connecting shaft are respectively fixed to the three corners of the triangular plate. The first bearing is fixed on the first connecting shaft and slidably connected to the first groove. The second bearing is fixed on the second connecting shaft and slidably connected to the upper side of the arc groove. The third bearing is fixed on the third connecting shaft and slidably connected to the lower side of the arc groove. The second bearing corresponds to the first end of the arc groove. The third bearing corresponds to the inner groove. The upper end of the drive shaft is fixed below the triangular plate. The front and rear ends of the drive cylinder are respectively hinged to the cylinder mounting bracket and the drive shaft. The first universal ball is fixed below the movable top plate and its movable end contacts the upper surface of the track plate. The second universal ball is fixed above the triangular plate and its movable end contacts the lower surface of the track plate. Multiple sets of the first universal ball and the second universal ball are provided.
2. The corner rounding machine cutter drive mechanism according to claim 1, characterized in that: The angle between the first longitudinal groove and the transverse groove is an obtuse angle.
3. The corner rounding machine cutter drive mechanism according to claim 1, characterized in that: The cylinder mounting bracket includes a support base plate, an adjusting base plate, and a hinge bracket. The support base plate is fixed on the mounting base. The support base plate has a first strip-shaped hole and a second strip-shaped hole along its length. The adjusting base plate has an arc-shaped hole and a locking hole. The adjusting base plate is fixed to the support base plate by screws passing through the arc-shaped hole and the first strip-shaped hole. The adjusting base plate is fixed to the support base plate by screws passing through the locking hole and the second strip-shaped hole. The hinge bracket is fixed to the adjusting base plate. The front end of the drive cylinder is hinged to the hinge bracket.
4. The corner rounding machine cutter drive mechanism according to claim 1, characterized in that: The movable top plate is circular in shape.