A flexible material size control device

Abstract

The application discloses a flexible material size control device, which comprises a clamping ring assembly, a base core shaft, a base and a limiting block. The inner surface of the clamping ring assembly is tightly combined with the flexible material, and is used for centripetal compression and shape control of the flexible material. The base core shaft is composed of two cylindrical segments with different diameters, and the transition between the two cylindrical segments is a right angle surface. The outer circumferential surface of the small-diameter cylindrical segment is matched with the small gap of the inner surface of the product, and is used for radial positioning of the product. The transition right angle surface is combined with the end surface of the product, and is used for axial positioning of the product. The base is used for connecting the clamping ring assembly and mounting the limiting block. The limiting block is a cuboid structure, and one end is a round head, which is used for angular positioning between the base and the clamping ring assembly. The application can meet the requirements of flexible material compression and shape setting, and ensure the size and surface quality of the flexible material.

Description

Technical Field

[0001] This invention relates to the field of tooling and fixture technology, and more specifically to a device suitable for controlling the external dimensions of flexible materials. Background Technology

[0002] Currently, the measures used to control the dimensions of flexible materials after installation are to wrap and tighten them with tape to compress the flexible materials and control their dimensions.

[0003] The drawbacks of this control method are as follows: First, when using tape for tightening and shaping, the tape exerts limited pressure on the flexible material, resulting in insufficient material compression and easily causing dimensional deviations. Second, after tape tightening, the material's outer surface bears tape marks and uneven deformation, affecting surface quality. Third, manual tape tightening results in inconsistent tightening force depending on the individual, leading to poor dimensional consistency. Finally, the lack of a reference point and positioning during tape tightening makes the material prone to misalignment relative to the product axis. Summary of the Invention

[0004] In view of this, the present invention provides a flexible material shape and size control device that can meet the requirements of conformal compression and shaping of flexible materials, and ensure the shape and size and surface quality of flexible materials.

[0005] A flexible material shape and size control device includes a clamping ring assembly, a base mandrel, a base, and a limiting block;

[0006] The inner surface of the retaining ring assembly fits tightly against the flexible material, serving as a centripetal clamping and shape control for the flexible material.

[0007] The base mandrel consists of two cylindrical segments of different diameters, with a right-angle transition between the cylindrical segments. The outer circumferential surface of the smaller diameter cylindrical segment fits with the inner surface of the product with a small clearance for radial positioning of the product. The right-angle transition surface fits with the end face of the product for axial positioning of the product.

[0008] The base is used to connect the retaining ring assembly and the mounting limit block;

[0009] The limiting block is a cuboid structure with a rounded end, used for angular positioning between the base and the retaining ring assembly.

[0010] Furthermore, the retaining ring assembly includes a three-lobed retaining ring, three pads, bolts, and nuts. On both sides of the inner surface of each retaining ring, a clearance groove of the same length as the retaining ring is opened along the axis. The pads are riveted into the clearance grooves. The pads are the same length as the retaining rings, and the inner surface diameter of the pads is consistent with that of the retaining rings. After the three-lobed retaining rings are molded together, the pads are connected end to end with the clearance grooves on the adjacent retaining rings to form an inner and outer nest. The three-lobed retaining rings are connected by flanges and locked by bolts and nuts.

[0011] Furthermore, the central hole on the base is the mounting hole for the base spindle, and six threaded holes are evenly distributed on the outer circle of the base for connecting the retaining ring assembly; at the same time, the outer circle is provided with a limiting groove, and the retaining ring assembly is angularly positioned after the limiting block is installed.

[0012] Furthermore, the upper part of the retaining ring assembly has two through holes for positioning and assembly with the product, so as to ensure that the retaining ring is correctly positioned relative to the product axis.

[0013] Furthermore, the wall surface of the ring assembly is provided with several centripetal water vapor channels, which are evenly distributed small-diameter through holes for the release of water vapor from the flexible material.

[0014] Beneficial effects:

[0015] 1. The external dimension control device of the present invention consists of a clamping ring assembly, a base mandrel, a base, and a limiting block. It highly integrates functions such as product positioning and assembly, material compression, external dimension control, and moisture release. It not only achieves effective control of the compression amount and external dimension of flexible materials and improves the consistency of the surface quality and external dimension quality of flexible materials, but also solves the problems of uncontrollable compression force and material compression amount when manually wrapping tape, as well as poor material surface quality after the tape is tightened.

[0016] 2. In this invention, the flexible material is positioned and assembled using a base and a base mandrel during installation. After installation, the base and base mandrel are removed, leaving the lower surface of the product open, which is more conducive to the release of moisture from the material.

[0017] 3. This invention employs a pad + clearance groove structure in the retaining ring assembly. Each retaining ring has one clearance groove on each side of its inner surface. The pad is riveted into one of these clearance grooves. After riveting, the inner surface of the pad is the same diameter as the inner surface of the retaining ring. During the mold closing process of the retaining ring assembly, the pad slowly embeds into the adjacent clearance groove, end to end, nested inside and out, to prevent the flexible material in the flange area from being squeezed, bulging, or deformed, thus affecting surface quality.

[0018] 4. The present invention provides multiple small-diameter through holes evenly distributed on the wall of the ring assembly, which is more conducive to the release of water vapor from the flexible material.

[0019] 5. The present invention provides a limiting block below each petal of the retaining ring to ensure that each petal of the retaining ring moves centripetally when the retaining ring assembly is closed, effectively avoiding angular misalignment. Attached Figure Description

[0020] Figure 1 This is a side view of the flexible material shape and size control device of the present invention (before the flexible material is compressed);

[0021] Figure 2 for Figure 1 Top view;

[0022] Figure 3 for Figure 2 BB section view;

[0023] Figure 4 This is a schematic diagram of the assembly structure of the retaining ring component;

[0024] Figure 5 This is a side view of the clasp;

[0025] Figure 6 This is a top view of the clasp;

[0026] Figure 7 This is a top view of the pad assembly process.

[0027] Figure 8 This is a side view of the pad during assembly.

[0028] Figure 9 This is a schematic diagram of the assembly structure of the backing plate and the clearance groove after mold closing;

[0029] Figure 10 This is a schematic diagram of the base mandrel structure;

[0030] Figure 11 This is a schematic diagram of the base structure;

[0031] Figure 12 This is a schematic diagram of the limit block.

[0032] Among them, 1-clamping ring assembly, 2-base mandrel, 3-base, 4-positioning block, 5-bolt, 6-nut, 7-disassembly bolt, 8-flexible material, 9-pad, 10-connecting bolt. Detailed Implementation

[0033] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] This invention provides a device suitable for controlling the external dimensions of flexible materials, as shown in the attached figure. Figure 1-3 As shown, it includes a retaining ring assembly 1, a base spindle 2, a base 3, a positioning block 4, a bolt 5, a nut 6, a disassembly bolt 7, and a connecting bolt 10.

[0035] The inner surface of the retaining ring assembly 1 conforms closely to the shape of the flexible material, serving as a centripetal clamping and shape control mechanism for the flexible material. It consists of three retaining rings, and the assembly structure is shown below. Figure 4 Each petal's ring-like structure is shown in Figure 5 and 6 On both sides of the inner surface of each retaining ring, a clearance groove of the same length as the retaining ring is opened along the axis. A pad 9 is riveted into the clearance groove. The pad 9 is the same length as the retaining ring, and the diameter of the inner surface of the pad 9 is consistent with that of the retaining ring, as shown in the attached figure. Figure 7 and 8As shown, after the three-lobed retaining rings are molded together, the pad 9 connects end-to-end with the clearance groove on the adjacent retaining ring, forming an inner and outer nest. The three-lobed retaining rings are connected by flanges and locked by bolts 5 and nuts 6. (See attached...) Figure 9 As shown in the figure, the structure is designed to prevent the flexible material at the flange from being squeezed and deformed when the retaining ring contracts, thus affecting the surface quality.

[0036] The retaining ring assembly 1 is connected to the base 3 via a flange on the lower edge. The flange on the lower edge has threaded holes and through holes for assembling and disassembling bolts 7 and connecting bolts 10.

[0037] There are two through holes on the top of the retainer assembly 1 for positioning and assembly with the product, so as to ensure that the retainer is correctly positioned relative to the product axis.

[0038] Several centripetal water vapor channels are provided on the wall surface of the ring assembly 1. These are small-diameter through holes that are evenly distributed and used for the release of water vapor from the flexible material.

[0039] As attached Figure 10 As shown, the base mandrel 2 is used for product assembly and positioning. The base mandrel 2 has two positioning surfaces: positioning surface 1 fits with the inner surface of the product with a small clearance for radial positioning, and positioning surface 2 fits against the end face of the product for axial positioning. A large-diameter through hole is located in the middle for weight reduction.

[0040] As attached Figure 11 As shown, the central hole on the base 3 is the mounting hole for the base spindle 1, and six M10 threaded holes are evenly distributed on the outer circle for connecting the retaining ring assembly 1. At the same time, the outer circle is provided with a limiting groove, and after the limiting block 4 is installed, the angular positioning of the retaining ring assembly 1 is realized.

[0041] As attached Figure 12 As shown, the limiting block 4 is a cuboid structure with a rounded end, used for angular positioning between the base 3 and the ring assembly 1.

[0042] Bolt 5 is an M10*120 bolt, and nut 6 is an M10 nut, used for the self-connection of the retaining ring assembly 1. The disassembly bolt 7 and connecting bolt 10 are M10*40 bolts. Six connecting bolts 10 are inserted into the through holes of the retaining ring assembly 1 for connecting the retaining ring assembly to the base 3. The other six disassembly bolts 7 are inserted into the threaded holes of the retaining ring assembly 1 for ejecting and removing the base 3.

[0043] Usage process: Before laying the flexible material, the product to be laid is vertically assembled on the base mandrel 2, and the two positioning surfaces on the base mandrel 2 are used for positioning.

[0044] After the flexible material is laid, first assemble the limiting block 4 into the limiting groove of the base 3, with the round head of the limiting block 4 facing inward. Then assemble the retaining ring assembly 1, bolts 5, and nuts 6. During assembly, the two through holes on the retaining ring assembly 1 must be aligned with the positioning shaft of the product being laid to ensure the correct axial position of the retaining ring assembly relative to the product. In all three quadrants, simultaneously tighten bolts 5 and nuts 6 to cause the retaining ring assembly 1 to contract inward evenly until the flange segments are completely fitted together, thereby compressing the flexible material.

[0045] Then, insert the connecting bolt 10 to connect with the base 3 and tighten it so that the lower surface of the retaining ring assembly 1 is completely in contact with the base 3. Finally, continuously screw in the remaining 6 disassembly bolts 7 to push out and remove the base 3 and the base spindle 2 together.

[0046] In summary, the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for controlling the external dimensions of flexible materials, characterized in that, Includes the retaining ring assembly, base spindle, base, and limit block; The inner surface of the retaining ring assembly fits tightly against the flexible material, serving as a centripetal clamping and shape control for the flexible material. The base mandrel consists of two cylindrical segments of different diameters, with a right-angle transition between the cylindrical segments. The outer circumferential surface of the smaller diameter cylindrical segment fits with the inner surface of the product with a small clearance for radial positioning of the product. The right-angle transition surface fits with the end face of the product for axial positioning of the product. The base is used to connect the retaining ring assembly and the mounting limit block; The limiting block is a cuboid structure with a rounded end, used for angular positioning between the base and the retaining ring assembly.

2. The flexible material shape and size control device as described in claim 1, characterized in that, The retaining ring assembly includes a three-lobed retaining ring, three pads, bolts, and nuts. On both sides of the inner surface of each retaining ring, there is a clearance groove of the same length as the retaining ring along the axis. The pads are riveted into the clearance grooves. The pads are the same length as the retaining rings, and the inner diameter of the pads is the same as that of the retaining rings. After the three-lobed retaining rings are molded together, the pads are connected end to end with the clearance grooves on the adjacent retaining rings to form an inner and outer nest. The three-lobed retaining rings are connected by flanges and locked by bolts and nuts.

3. The flexible material shape and size control device as described in claim 2, characterized in that, The central hole on the base is the mounting hole for the base mandrel. Six threaded holes are evenly distributed on the outer circle of the base for connecting the retaining ring assembly. At the same time, the outer circle is provided with a limiting groove, and the retaining ring assembly is angularly positioned after the limiting block is installed.

4. The flexible material shape and size control device as described in claim 3, characterized in that, The retaining ring assembly has two through holes on its upper part for positioning and assembly with the product, so as to ensure that the retaining ring is correctly positioned relative to the product axis.

5. The flexible material shape and size control device as described in claim 3 or 4, characterized in that, The wall surface of the ring assembly is provided with several centripetal water vapor channels, which are evenly distributed small-diameter through holes for the release of water vapor from the flexible material.

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