Turntable mechanism and winding machine

Abstract

The utility model provides a turntable mechanism and winding machine, including turntable, base, a plurality of roller subassembly, chain transmission mechanism, be equipped with the support frame of net structure on the base, said support frame of net structure takes the centre of rotation of turntable as the central axis, and the chain transmission mechanism is equipped with the plurality of roller subassembly. A plurality of concentric arcs with different diameters are provided, and the main beams are arranged on the left side and the right side of the central axis; a plurality of mounting grooves are respectively formed in the inner side arc and the outer side arc of the support frame of the net structure, and the mounting parts of the roller components are directly placed in the mounting grooves and are supported and positioned by the mounting grooves. By means of the supporting frame of the net-shaped structure, more reliable installation supporting can be provided for the multiple layers of idler wheels which are placed and installed, more comprehensive and stable supporting can be provided for the rotary table, the rotary table is suitable for different goods, and meanwhile installation is easy and convenient.

Description

Technical Field

[0001] The utility model relates to a winding machine and a turntable mechanism thereof. Background Art

[0002] The wrapping machine is a mechanical device in the field of packaging machinery. It is used to wrap the packaging film around the surface of the object. It includes a turntable and a base. The turntable is rotatably mounted on the base. The object is placed on the turntable and rotates with the turntable, so that the packaging film is wrapped around its surface. Rollers are set on the base to support the turntable at different positions. Most of the roller installation methods use a separate roller seat, which will bring about the high cost of the roller seat itself and the need to install them one by one. In addition, since the size, weight, and center of gravity of the goods are different, it is difficult to take these into account with the turntable mechanism using the conventional roller installation method. Utility Model Content

[0003] The utility model aims to provide a turntable mechanism and a wrapping machine, which can provide more comprehensive and stable support for the turntable, adapt to different goods, and are easy to install.

[0004] According to the first aspect of the utility model, the utility model adopts the following technical solutions:

[0005] A turntable mechanism comprises a turntable, a base, a plurality of roller assemblies, and a chain transmission mechanism, wherein a support frame of a mesh structure is arranged on the base, the support frame of the mesh structure has a plurality of concentric arcs of different diameters with the rotation center of the turntable as the central axis, and further comprises main beams arranged on the left and right sides of the central axis,

[0006] The support frame of the mesh structure is provided with a plurality of mounting grooves on the inner arc and the outer arc respectively, and the mounting part of the roller assembly is directly placed in the mounting grooves and is supported and positioned by the mounting grooves.

[0007] On the basis of adopting the above technical solutions, the present invention can also adopt the following further technical solutions, or use these further technical solutions in combination:

[0008] The chain transmission mechanism is arranged between the left and right main beams and a sprocket is arranged at the rotation center of the turntable, wherein an outer arc among a plurality of concentric arcs with different diameters is close to the edge of the turntable, a difference between a radius of an inner arc among a plurality of concentric arcs with different diameters and a radius of the sprocket is greater than a difference between a radius of the outer arc and a radius of the inner arc, and a height of the inner arc relative to the main beam is less than a difference between a radius of the turntable and a radius of the inner arc.

[0009] The outer circular arc includes several outer circular arc segment support plates, the inner circular arc includes several inner circular arc segment support plates, and the mesh structure also includes several support plates intersecting with the outer circular arc segment support plates and the inner circular arc segment support plates to form a mesh; the support plates intersecting with the outer circular arc segment support plates and the inner circular arc segment support plates are welded to the main beam, and the outer circular arc segment support plates and the inner circular arc segment support plates are welded to the main beam and / or the support plates intersecting with the outer circular arc segment support plates and the inner circular arc segment support plates.

[0010] The support plates intersecting the outer arc segment support plates and the inner arc segment support plates are radial support plates arranged radially.

[0011] The welding between the outer arc segment support plate, the inner arc segment support plate, the support plate intersecting the outer arc segment support plate and the inner arc segment support plate, and the main beam is a welding connection including a clamping connection.

[0012] The support plates intersecting with the outer arc segment support plate and the inner arc segment support plate are respectively located on the left side of the left main beam and the right side of the right cross beam, and the base of the winding machine column is welded between the first ends of the two main beams, and the outer arc segment support plate and the inner arc segment support plate are welded and connected between the second ends of the two main beams; the outer end of the support plate intersecting with the outer arc segment support plate and the inner arc segment support plate corresponds to the edge of the turntable, and the outer connected arc support plate is welded at the outer end and the second end of the main beam, and the main beam adopts a flat box-type section.

[0013] A connecting beam is also arranged between the left and right main beams, and both ends of the connecting beam are connected to the left and right main beams. The central axis of the turntable is arranged on the connecting beam, and the connecting beam supports the sprocket of the chain transmission mechanism.

[0014] A bearing is arranged on the central axis of the turntable, and the turntable is fixed to the sprocket through a plurality of connecting columns arranged on the sprocket and located outside the bearing seat. The sprocket is positioned on the step of the bearing seat, and the inside of the bearing seat is clamped on the bearing through the step, and the bearing is supported on the step at the bottom of the central axis.

[0015] The roller assembly includes a roller shaft and rollers connected to both ends of the roller shaft. The middle of the roller shaft is provided with an annular groove matching the mounting groove. The roller assembly can be rotatably positioned by the cooperation between the annular groove and the mounting groove.

[0016] The overall configuration of the groove walls on both sides and the bottom of the installation groove is slightly curved along the arc direction, and the width of the annular groove matches the slight curvature to form a positioning.

[0017] The groove bottom of the installation groove is a concave arc groove bottom.

[0018] According to a second aspect of the utility model, the present invention provides a winding machine, characterized in that it is provided with any one of the above-mentioned turntable mechanisms.

[0019] Due to the adoption of the technical solution of the utility model, the utility model can provide more reliable installation support for the multi-layer rollers installed by the support frame with a mesh structure, provide more comprehensive and stable support for the turntable, adapt to different goods, and at the same time, be easy to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of an embodiment of the utility model, wherein the turntable is hidden.

[0021] Figure 2 This is a top view of an embodiment provided by the utility model, wherein the turntable is hidden.

[0022] Figure 3 This is an exploded view of an embodiment provided by the utility model.

[0023] Figure 4 for Figure 3 The enlarged view of part A is a schematic diagram of the matching between the roller and the mounting groove.

[0024] Figure 5 This is a cross-sectional view of an embodiment provided by the utility model. DETAILED DESCRIPTION

[0025] Refer to the accompanying drawings. The utility model provides a turntable mechanism, including a turntable 1, a base, a plurality of roller assemblies, and a chain transmission mechanism 7. A support frame of a mesh structure is arranged on the base. The support frame of the mesh structure takes the rotation center of the turntable 1 as the central axis, is provided with two concentric arcs 100 and 200 with different diameters, and also includes main beams 61 and 62 arranged on the left and right sides of the central axis. The chain transmission mechanism 7 is arranged between the left and right main beams 61 and 62, and a sprocket 70 is arranged at the rotation center of the corresponding turntable. The outer arc 100 of the plurality of concentric arcs with different diameters is close to the edge of the turntable 1. The difference between the radius R2 of the inner arc 200 of the plurality of concentric arcs with different diameters and the radius R3 of the sprocket 70 is greater than the difference between the radius R1 of the outer arc 100 and the radius R2 of the inner arc 200. The arch height L of the inner arc 100 relative to the main beam is less than the difference between the turntable radius R0 and the radius R2 of the inner arc 100.

[0026] The mesh structure support frame is respectively provided with a plurality of mounting grooves 2 on the inner arc 200 and the outer arc 100. The mounting part of the roller assembly is directly placed in the mounting grooves 2, supported and positioned by the mounting grooves 2, and can be adaptively adjusted up and down under stable support. Through multi-layer support cooperation, the turntable 1 is provided with more comprehensive and stable support to adapt to different goods, and at the same time, it is easy to install.

[0027] The outer circular arc includes several outer circular arc segment support plates 3, the inner circular arc includes several inner circular arc segment support plates 4, and the mesh structure also includes several support plates 5 intersecting with the outer circular arc segment support plates and the inner circular arc segment support plates. The support plates 5 are preferably radial support plates arranged radially, thereby forming a multi-layer fan-shaped grid to form a mesh. The support plates 5 are welded to the main beam, and the outer circular arc segment support plates 3 and the inner circular arc segment support plates 4 are welded to the main beam and / or the support plates 5. These welds are welded connections including snap-on connections, forming a firm support frame suitable for directly placing rollers running and adapting to goods of different sizes, weights, and centers. For example, a groove 641 is set on the main beam, and the ends of the support plate 5 and the outer arc segment support plate 3 welded thereto are set with protrusions 642 and inserted into the groove 641, and then welding is performed. The same connection method is also applicable to the support plate 5 and the outer arc segment support plate 3 and the inner arc segment support plate 4. The support plate 5 may be provided with a groove 51, and the outer arc segment support plate 3 and the inner arc segment support plate 4 may be provided with grooves 52 in opposite directions. The two grooves 51 and 52 in opposite directions are inserted into each other to form a snap connection, and then welding is performed.

[0028] The support plates 5 are respectively located on the left side of the left main beam 61 and on the right side of the right cross beam 62. The base 60 of the winding machine is welded between the first ends of the two main beams. The motor of the chain transmission mechanism, the column of the winding machine and other devices can be set on the base. The outer arc segment support plate 3 and the inner arc segment support plate 4 are welded between the second ends of the two main beams. The outer end of the support plate 5 corresponds to the edge of the turntable 1, and the outer arc support plate 300 is welded at the outer end and the second end of the main beam. The welding can also be a welding with a clamping connection. The main beams 61 and 62 adopt a flat box section, and can also be used as a conveying trough.

[0029] The chain transmission mechanism 7 is used to drive the turntable 1 to rotate. A connecting beam 63 is also arranged between the left and right main beams 61 and 62. Both ends of the connecting beam 63 are connected to the main beams 61 and 62. The turntable center axis 11 is arranged on the connecting beam 63. The connecting beam 63 supports the sprocket 70 of the chain transmission mechanism 7.

[0030] Preferably, a bearing 12 is arranged on the central axis 11 of the turntable, and the turntable 1 is fixed to the sprocket 70 through a plurality of connecting columns 71 arranged on the sprocket 70 and located outside the bearing seat 12. The sprocket 70 is connected and positioned on the step 131 of the bearing seat 13 so as to rotate together. The inside of the bearing seat 13 is clamped on the bearing 12 through the step 132, and the bearing 12 is supported on the step 111 at the bottom of the central axis 11. The above-mentioned central support connection structure can help the above-mentioned support structure to obtain a better effect. The bearing can be a thrust ball bearing.

[0031] The roller assembly includes a roller shaft 8 and rollers 80 connected to both ends of the roller shaft. The middle of the roller shaft 8 is provided with an annular groove 81 matching the mounting groove 2. The roller assembly can be rotatably positioned by the cooperation between the annular groove 81 and the mounting groove 2.

[0032] Based on the arc shape of the outer arc segment support plate 3 and the inner arc segment support plate 4, the overall configuration of the groove walls and the bottom of the installation groove 2 is slightly curved along the arc direction, and the width of the annular groove 8 matches the slight curvature to form a point or line positioning fit, thereby improving the adaptive positioning capability and reducing the friction resistance. The groove bottom 21 of the installation groove 2 can be a concave arc groove bottom.

[0033] Unless otherwise specified, in the present invention, the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial" and the like indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in conjunction with the drawings and according to specific circumstances.

[0034] Unless otherwise clearly specified and limited, in the present invention, the terms "disposed", "clamped" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the protection scope of the present invention.

Claims

1. A turntable mechanism, comprising a turntable, a base, a plurality of roller assemblies, and a chain transmission mechanism, characterized in that A support frame of a mesh structure is arranged on the base, wherein the support frame of the mesh structure has a rotation center of the turntable as a central axis, is provided with a plurality of concentric arcs of different diameters and also includes main beams arranged on the left and right sides of the central axis; The support frame of the mesh structure is provided with a plurality of mounting grooves on the inner arc and the outer arc respectively, and the mounting part of the roller assembly is directly placed in the mounting grooves and is supported and positioned by the mounting grooves.

2. A turntable mechanism according to claim 1, characterized in that The chain transmission mechanism is arranged between the left and right main beams and a sprocket is arranged at the rotation center of the corresponding turntable, wherein an outer arc among a plurality of concentric arcs with different diameters is close to the edge of the turntable, a difference between a radius of an inner arc among a plurality of concentric arcs with different diameters and a radius of the sprocket is greater than a difference between a radius of the outer arc and a radius of the inner arc, and a height of the inner arc relative to the main beam is less than a difference between a radius of the turntable and a radius of the inner arc.

3. A turntable mechanism according to claim 1 or 2, characterized in that: The outer circular arc includes several outer circular arc segment support plates, the inner circular arc includes several inner circular arc segment support plates, and the mesh structure also includes several support plates intersecting with the outer circular arc segment support plates and the inner circular arc segment support plates to form a mesh; the support plates intersecting with the outer circular arc segment support plates and the inner circular arc segment support plates are welded to the main beam, and the outer circular arc segment support plates and the inner circular arc segment support plates are welded to the main beam and / or the support plates intersecting with the outer circular arc segment support plates and the inner circular arc segment support plates.

4. A turntable mechanism according to claim 3, characterized in that: The support plates intersecting the outer arc segment support plates and the inner arc segment support plates are radial support plates arranged radially.

5. A turntable mechanism according to claim 3, characterized in that: The welding between the outer arc segment support plate, the inner arc segment support plate, the support plate intersecting the outer arc segment support plate and the inner arc segment support plate, and the main beam is a welding connection including a clamping connection.

6. A turntable mechanism according to claim 4, characterized in that: The support plates intersecting with the outer arc segment support plate and the inner arc segment support plate are respectively located on the left side of the left main beam and the right side of the right cross beam, and the base of the winding machine is welded between the first ends of the main beams on both sides, and the outer arc segment support plate and the inner arc segment support plate are welded and connected between the second ends of the main beams on both sides; the outer end of the support plate intersecting with the outer arc segment support plate and the inner arc segment support plate corresponds to the edge of the turntable, and the outer connecting arc support plate is welded between the outer end and the second end of the main beam, and the main beam adopts a flat box-type section.

7. A turntable mechanism according to claim 2, characterized in that: A connecting beam is also arranged between the left and right main beams, and both ends of the connecting beam are connected to the left and right main beams. The central axis of the turntable is arranged on the connecting beam, and the connecting beam supports the sprocket.

8. A turntable mechanism according to claim 7, characterized in that: A bearing is arranged on the central axis of the turntable, and the turntable is fixed to the sprocket through a plurality of connecting columns arranged on the sprocket and located outside the bearing seat. The sprocket is positioned on the step of the bearing seat, and the inside of the bearing seat is clamped on the bearing through the step, and the bearing is supported on the step at the bottom of the central axis.

9. A turntable mechanism according to claim 1, characterized in that: The roller assembly includes a roller shaft and rollers connected to both ends of the roller shaft. An annular groove matching the mounting groove is provided in the middle of the roller shaft, and the roller assembly can be rotatably positioned through the cooperation between the annular groove and the mounting groove.

10. A turntable mechanism according to claim 9, characterized in that: The overall configuration of the groove walls on both sides and the bottom of the installation groove is slightly curved along the arc direction, and the width of the annular groove matches the slight curvature to form a positioning.

11. A turntable mechanism according to claim 9 or 10, characterized in that: The groove bottom of the installation groove is a concave arc groove bottom.

12. Wrapping machine, characterized in that A turntable mechanism as claimed in claim 1 is provided.

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