Rolling preforming tool

Abstract

The utility model discloses a rolling pre-forming tool which comprises a mounting base, a pre-bending assembly and a conveying assembly used for assisting in conveying heated and softened glass products to a rolling forming area. The pre-bending assembly and the conveying assembly are both arranged on the mounting base, the conveying assembly is provided with a conveying plane for glass products to move in the conveying direction, and a conveying gap is formed in the pre-bending assembly; when the glass product penetrates through the conveying gap in the conveying direction, the pre-bending assembly can bend the product in a bending mode. Before the glass product is formally rolled and formed, the pre-bending assembly is arranged on the transmission assembly for transition, and the pre-bending assembly is used for pre-bending the glass product in advance, so that the main curvature of the glass product is changed in advance before the glass product is formally rolled and formed, and uniform transition of the curvature is completed, so that the condition that the glass product is easy to have straight edges is improved, and the quality of a finished product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of roller pressing technology, in particular to a roller pressing preforming tool. Background Art

[0002] During roll forming, some existing glass products are prone to leaving straight edges due to the discrepancy between the edge thickness and the roller spacing in the forming area. This can result in the product failing to achieve the desired curved surface. For example, if the minimum roller spacing in the forming area is 53mm, and the product's edge thickness is 50mm, the edge will not be pressed during rolling, resulting in fluctuations in the product's fit and affecting its optical performance. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a roller preforming tool to reduce the probability of the product having straight edges due to inadequate pressing during roller pressing, thereby improving the quality of the finished product.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A roller preforming tool comprises a mounting base, a pre-bending assembly, and a transmission assembly for assisting in conveying a heat-softened glass product to a roller forming area;

[0006] The pre-bending assembly and the transmission assembly are both arranged on the mounting base, the transmission assembly has a transmission plane for the glass product to move along a transmission direction, and a transmission gap is provided on the pre-bending assembly;

[0007] When the glass product passes through the transport gap along the transport direction, the pre-bending assembly is capable of bending the product.

[0008] Furthermore, the pre-bending assembly includes a first pair of pressing rollers and a second pair of pressing rollers for bending the product;

[0009] The first pair of pressing rollers and the second pair of pressing rollers are both rotatably disposed on the mounting base, the axes of the first pair of pressing rollers and the second pair of pressing rollers and the transmission plane are parallel to each other, and in a direction perpendicular to the transmission plane, the positions of the first pair of pressing rollers and the second pair of pressing rollers are both higher than the transmission plane;

[0010] The transmission gap is formed between the first pair of pressing rollers and the second pair of pressing rollers.

[0011] Furthermore, the mounting base is provided with a base and an assembly plate detachably connected to the base;

[0012] The first pair of pressing rollers is rotatably arranged on the base, and the second pair of pressing rollers is rotatably arranged on the assembly plate.

[0013] Furthermore, one of the second pair of pressing rollers is rotatably disposed on at least two of the assembly plates.

[0014] Furthermore, the base is provided with a contoured groove, and the assembly plate is detachably arranged in the contoured groove.

[0015] Furthermore, the transmission assembly includes at least two transition rollers;

[0016] All the transition rollers are laid on the mounting base along the transmission direction to form the transmission plane;

[0017] The transition roller is rotatable relative to the mounting base.

[0018] Furthermore, the transmission assembly further comprises a roller needle bearing and a rotating sprocket;

[0019] The mounting base is provided with a mounting hole groove, the roller needle bearing and the rotating sprocket are respectively sleeved on the transition roller, and the roller needle bearing is arranged in the mounting hole groove.

[0020] Furthermore, the transmission assembly further includes a retaining spring;

[0021] The needle roller bearing is clamped in the mounting hole groove through the clamping spring.

[0022] Furthermore, the gap size of the transmission gap is adjustable.

[0023] Furthermore, the second pair of pressing rollers is on the mounting base, and the second pair of pressing rollers can move toward or away from the first pair of pressing rollers to correspondingly reduce or increase the size of the transmission gap.

[0024] The beneficial effect of the present invention is that it provides a roller preforming tooling, and before the glass product officially starts to be roller-formed, a pre-bending component is set on the transmission component used for transition, and the pre-bending component pre-bends the glass product in advance, so that its main curvature changes before the formal roller forming, completing the curvature transition uniformly, thereby improving the situation where it is easy to have straight edges and improving the quality of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the installation of a pre-bending component and a transmission component of a roller preforming tool on a mounting base of the utility model;

[0026] Figure 2This is a schematic diagram of the installation of one end of a first pair of pressing rollers and one end of a second pair of pressing rollers of a roller preforming tool of the present invention on a mounting base;

[0027] Figure 3 This is an exploded view of the mounting structure (with a rotating sprocket) of one end of a first pair of pressing rollers and one end of a second pair of pressing rollers of a roller preforming tool of the present invention;

[0028] Figure 4 This is an exploded view of the mounting structure (without the rotating sprocket) of the other end of the first pair of pressing rollers and the other end of the second pair of pressing rollers of a roller preforming tool of the present invention;

[0029] Figure 5 The figure is a schematic diagram of the composition structure of the installation base of a roller preforming tooling of the present invention.

[0030] Description of labels:

[0031] 1. Mounting base; 2. Pre-bending components; 3. Transmission components; 4. Transmission gap;

[0032] 11. Base; 12. Assembly plate; 13. Profile groove; 14. Mounting hole groove;

[0033] 21. First pair of pressing rollers; 22. Second pair of pressing rollers;

[0034] 31. Transition roller; 32. Needle roller bearing; 33. Rotating sprocket; 34. Circlip. DETAILED DESCRIPTION

[0035] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

[0036] When some existing glass products are roll-formed, the difference in edge thickness and roller spacing in the forming area can easily leave straight edges on the glass edges, resulting in the overall product being unable to achieve the theoretical curved surface after final forming.

[0037] Based on this, please refer to Figures 1 to 5 The present application proposes a roller preforming tool, comprising a mounting base 1, a pre-bending assembly 2, and a transmission assembly 3 for assisting in conveying the heated and softened glass product to the roller forming area; the pre-bending assembly 2 and the transmission assembly 3 are both arranged on the mounting base 1, the transmission assembly 3 has a transmission plane for the glass product to move along the transmission direction, and the pre-bending assembly 2 is provided with a transmission gap 4. Wherein, the transmission direction is as follows: Figure 1 As indicated by the arrow.

[0038] Combine Figure 1 and Figure 2As shown, the transmission direction of the transmission surface of the transmission component 3 is the direction for controlling the movement of the product to the roller forming area, and the transmission gap 4 on the pre-bending component 2 is just located on the path of the glass product when it moves on the transmission plane; in the process of the glass product passing through the transmission gap 4 along the transmission direction, the pre-bending component 2 has a bending effect on the glass product, so that the entire glass product (including the edge portion that is easy to form a straight edge) is first pressed into shape according to the main curvature direction.

[0039] In some embodiments, as Figure 2 As shown, the pre-bending assembly 2 includes a first pair of rollers 21 and a second pair of rollers 22 for bending the product. The first pair of rollers 21 and the second pair of rollers 22 are both rotatably mounted on the mounting base 1. The axes of the first pair of rollers 21 and the second pair of rollers 22 are parallel to the transmission plane. In a direction perpendicular to the transmission plane, the first pair of rollers 21 and the second pair of rollers 22 are both positioned above the transmission plane. A transmission gap 4 is formed between the first pair of rollers 21 and the second pair of rollers 22. The axes of the first pair of rollers 21 and the second pair of rollers 22 are parallel to each other. When the first pair of rollers 21 and the second pair of rollers 22 are mounted adjacent to each other, a transmission gap 4 is formed. The distance between the first pair of rollers 21 and the second pair of rollers 22 is the width of the transmission gap 4. As the glass product passes through the transmission gap 4 along the transmission direction, because the first pair of rollers 21 and the second pair of rollers 22 are both positioned above the transmission plane, i.e., there is a height difference between the transmission gap 4 and the transmission plane, the first pair of rollers 21 and the second pair of rollers 22 act on the upper and lower surfaces of the heated and softened glass product, respectively, thereby achieving pre-bending.

[0040] Combine Figures 3 to 5 As shown, the mounting base 1 is provided with a base 11 and an assembly plate 12; a first pair of pressing rollers 21 are rotatably mounted on the base 11, and a second pair of pressing rollers 22 are rotatably mounted on the assembly plate 12; a contoured groove 13 is provided on the top of the base 11. During installation, the assembly plate 12 is removably mounted within the contoured groove 13, such that the second pair of pressing rollers 22 are positioned above the first pair of pressing rollers 21. The assembly plate 12 is specifically secured within the contoured groove 13 via bolts. By adjusting the mounting position of the assembly plate 12, the second pair of pressing rollers 22 can be moved closer to or further away from the first pair of pressing rollers 21, thereby correspondingly reducing or increasing the size of the transmission gap 4 to adjust the size of the transmission gap 4 to meet the pre-bending requirements of glass products of different specifications.

[0041] In some embodiments, combined Figure 3 and Figure 4As shown, a base 11 is provided on the mounting base 1 at positions corresponding to the two ends of the first pair of pressure rollers 21, and the two ends of the first pair of pressure rollers 21 are rotatably arranged on the two bases 11, and each base 11 is provided with two contoured grooves 13. The ends of the second pair of pressure rollers 22 are rotatably arranged on two assembly plates 12 at the same time, and the two assembly plates 12 correspond one-to-one to the contoured grooves 13 on the same base 11.

[0042] Furthermore, the transmission assembly 3 includes at least two transition rollers 31. All transition rollers 31 are laid out on the mounting base 1 along the transmission direction, forming a transmission plane. The ends of the transition rollers 31 are also rotatably mounted on the two aforementioned bases 11. The transmission assembly 3 also includes a needle roller bearing 32 and a rotating sprocket 33. The base 11 of the mounting base 1 is provided with mounting holes 14. The needle roller bearing 32 and the rotating sprocket 33 are respectively mounted on the transition rollers 31, with the needle roller bearing 32 positioned within the mounting holes 14. The transition rollers 31 are connected to an external drive mechanism via the rotating sprocket 33, thereby obtaining rotational power. To prevent axial deviation of the transition rollers 31, the needle roller bearing 32 is secured to the mounting holes 14 by a retaining spring 34. The retaining spring 34 is specifically divided into an inner retaining spring 34 and an outer retaining spring 34, which are installed and used in conjunction with each other.

[0043] Please refer to Figures 1 to 5 , the first embodiment of the present utility model is:

[0044] A roller preforming tool comprises a mounting base 1, a pre-bending assembly 2, and a transmission assembly 3 for assisting in conveying heat-softened glass products to a roller forming area; the pre-bending assembly 2 and the transmission assembly 3 are both arranged on the mounting base 1, the transmission assembly 3 has a transmission plane for the glass product to move along the transmission direction, and a transmission gap 4 is provided on the pre-bending assembly 2; when the glass product passes through the transmission gap 4 along the transmission direction, the pre-bending assembly 2 can bend the product.

[0045] In this embodiment, the pre-bending assembly 2 includes a first pair of pressing rollers 21 and a second pair of pressing rollers 22 for bending the product; the first pair of pressing rollers 21 and the second pair of pressing rollers 22 are both rotatably arranged on the mounting base 1, and the axes of the first pair of pressing rollers 21 and the second pair of pressing rollers 22 and the transmission plane are parallel to each other. In the direction perpendicular to the transmission plane, the positions of the first pair of pressing rollers 21 and the second pair of pressing rollers 22 are both higher than the transmission plane; a transmission gap 4 is formed between the first pair of pressing rollers 21 and the second pair of pressing rollers 22.

[0046] In this embodiment, the use process of a roller preforming tool is as follows:

[0047] During operation, the operator places the heat-softened glass product flat on the transmission plane of the transmission component 3 through the transfer equipment; the transmission component 3 controls the glass product to move toward the roller-forming area; during the movement, the glass product passes through the transmission gap 4 between the first pair of pressing rollers 21 and the second pair of pressing rollers 22. Since the transmission gap 4 is narrow and there is a height difference with the transmission plane, the first pair of pressing rollers 21 and the second pair of pressing rollers 22 form a counter-pressure on the glass product, thereby bending the heat-softened glass product.

[0048] In this embodiment, the mounting base 1 is provided with a base 11 and an assembly plate 12 detachably connected to the base 11. A first pair of pressing rollers 21 is rotatably mounted on the base 11, and a second pair of pressing rollers 22 is rotatably mounted on the assembly plate 12. Furthermore, one second pair of pressing rollers 22 is rotatably mounted on at least two assembly plates 12. The base 11 is provided with contoured grooves 13, and the assembly plates 12 are detachably mounted within the contoured grooves 13 in a one-to-one correspondence.

[0049] In this embodiment, the conveying assembly 3 includes at least two transition rollers 31. All transition rollers 31 are arranged on the mounting base 1 along the conveying direction, forming a conveying plane. The multiple transition rollers 31 rotate simultaneously to convey the glass products. Preferably, the mounting base 1 is provided with mounting holes 14. A needle roller bearing 32 and a rotating sprocket 33 are respectively mounted on the transition rollers 31. The needle roller bearing 32 is engaged in the mounting holes 14 by a retaining spring 34.

[0050] To sum up, the utility model provides a roller preforming tooling, which sets a pre-bending component on the transmission component used for transition before the glass product officially starts roller forming, and the pre-bending component pre-bends the glass product in advance. Specifically, the first pair of pressing rollers and the second pair of pressing rollers are used for counter-forming, so that the main curvature is changed before the formal roller forming, and the curvature transition is completed uniformly, thereby improving the situation where straight edges are easily generated and improving the quality of the finished product.

[0051] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the description and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A roller preforming tool, characterized in that: It includes a mounting base, a pre-bending assembly, and a transmission assembly for assisting in conveying the heated and softened glass product to the roll forming area; The pre-bending assembly and the transmission assembly are both arranged on the mounting base, the transmission assembly has a transmission plane for the glass product to move along a transmission direction, and a transmission gap is provided on the pre-bending assembly; When the glass product passes through the transport gap along the transport direction, the pre-bending assembly is capable of bending the product.

2. A roller preforming tool according to claim 1, characterized in that: The pre-bending assembly includes a first pair of pressing rollers and a second pair of pressing rollers for bending the product; The first pair of pressing rollers and the second pair of pressing rollers are both rotatably disposed on the mounting base, the axes of the first pair of pressing rollers and the second pair of pressing rollers and the transmission plane are parallel to each other, and in a direction perpendicular to the transmission plane, the positions of the first pair of pressing rollers and the second pair of pressing rollers are both higher than the transmission plane; The transmission gap is formed between the first pair of pressing rollers and the second pair of pressing rollers.

3. A roller preforming tool according to claim 2, characterized in that: The mounting base is provided with a base and an assembly plate detachably connected to the base; The first pair of pressing rollers is rotatably arranged on the base, and the second pair of pressing rollers is rotatably arranged on the assembly plate.

4. A roller preforming tool according to claim 3, characterized in that: The second pair of pressing rollers is rotatably arranged on at least two of the assembly plates.

5. The roller preforming tool according to claim 3, characterized in that: The base is provided with a contoured groove, and the assembly plate is detachably arranged in the contoured groove.

6. The roller preforming tool according to claim 1, characterized in that: The transmission assembly includes at least two transition rollers; All the transition rollers are laid on the mounting base along the transmission direction to form the transmission plane; The transition roller is rotatable relative to the mounting base.

7. The roller preforming tool according to claim 6, characterized in that: The transmission assembly also includes a roller needle bearing and a rotating sprocket; The mounting base is provided with a mounting hole groove, the roller needle bearing and the rotating sprocket are respectively sleeved on the transition roller, and the roller needle bearing is arranged in the mounting hole groove.

8. The roller preforming tool according to claim 7, characterized in that: The transmission assembly further includes a retaining spring; The needle roller bearing is clamped in the mounting hole groove through the clamping spring.

9. The roller preforming tool according to claim 2, characterized in that: The transmission gap size is adjustable.

10. The roller preforming tool according to claim 9, characterized in that: The second pair of pressing rollers is on the mounting base, and the pair of pressing rollers can move toward or away from the first pair of pressing rollers to correspondingly reduce or increase the size of the transmission gap.

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