Rapid cooling roller for sheet forming

Abstract

The utility model provides a rapid cooling roller for sheet forming, which comprises an inner container, a water inlet end cover, a water outlet end cover, a water inlet shaft head provided with a water inlet runner, a water outlet shaft head provided with a water outlet runner and an outer cylinder body, and a middle runner for cooling water to flow is formed by the inner container and the outer cylinder body; the inner container is provided with a water inlet end, a water outlet end, a water inlet flange installed at the water inlet end and a water outlet flange installed at the water outlet end, the water inlet end is provided with a water inlet surrounding edge protruding outwards relative to the water inlet flange, and the water outlet end is provided with a water outlet surrounding edge protruding outwards relative to the water outlet flange. The water inlet end, the water inlet flange and the water inlet surrounding edge jointly form a water inlet cavity, a plurality of flow channel inlets are formed in the water inlet surrounding edge, the water outlet end, the water outlet flange and the water outlet surrounding edge jointly form a water outlet cavity, and a plurality of flow channel outlets are formed in the water outlet surrounding edge. The water inlet runner, the water inlet cavity, the multiple runner inlets, the middle runner, the multiple runner outlets, the water outlet cavity and the water outlet runner are in fluid communication in sequence.

Description

TECHNICAL FIELD

[0001] The utility model relates to sheet material forming technical field especially a kind of quick cooling roller for sheet material forming. BACKGROUND

[0002] Sheet material is a kind of material that resin (or monomer is directly polymerized in processing process) is used as main component, plasticizing agent, filling agent, lubricant, colorant and so on auxiliary component is used in processing process, by flow forming. Sheet material has many points, such as good heat resistance, good chemical corrosion resistance, high mechanical strength, reliable electrical insulation performance, chemical stability, and is increasingly widely used in various fields.

[0003] Cooling roller is used for calendering and traction to sheet material in high temperature state, and it plays a very important role to flatness and surface effect of sheet material product after forming. The quick cooling roller in prior art generally includes stick shaft, end face flange, inner bag and outer cylinder body, cooling water flow channel is formed between outer cylinder body and inner bag, and water inlet and water outlet respectively connected with the head and tail two sides end of the cooling water flow channel are set on roller shaft. Thus, sheet material is cooled by cooling water passing through the inside of quick cooling roller.

[0004] With the continuous upgrading of sheet material forming process, extrusion output and linear velocity are continuously improved, and higher requirements are put forward to cooling rate of quick cooling roller. The cooling efficiency of conventional shaft head drilling, flow channel and other deep roller structure is low, and scale blockage flow channel is serious, and problems such as uneven roller surface temperature, sheet material sticking roller, product fogging often occur. This limits the forming efficiency of sheet material to some extent and increases the defective rate of sheet material product. UTILITY MODEL CONTENT

[0005] In view of the above technical problems, the utility model aims at providing a kind of quick cooling roller for sheet material forming.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of quick cooling roller for sheet forming, limited to a axis and including axially extending inner bag, water inlet end cover, water outlet end cover, water inlet shaft head being provided with water inlet flow channel, water outlet shaft head being provided with water outlet flow channel and outer cylinder body being sleeved to the outer side of the inner bag, the inner bag and the outer cylinder body are formed with the intermediate flow channel for cooling water flow;The inner bag has water inlet end, water outlet end portion being axially away from the water inlet end portion, water inlet flange being installed at the water inlet end portion and radially extending and water outlet flange being installed at the water outlet end portion and radially extending, the water inlet end portion has water inlet surrounding edge that protrudes outward relative to the water inlet flange, and the water outlet end portion has water outlet surrounding edge that protrudes outward relative to the water outlet flange;The water inlet end portion, the water inlet flange and the water inlet surrounding edge are collectively formed with water inlet cavity, the water inlet surrounding edge is provided with several flow channel inlets, the water outlet end portion, the water outlet flange and the water outlet surrounding edge are collectively formed with water outlet cavity, the water outlet surrounding edge is provided with several flow channel outlets, and the water inlet flow channel, the water inlet cavity, the several flow channel inlets, the intermediate flow channel, the several flow channel outlets, the water outlet cavity and the water outlet flow channel are sequentially fluidly connected.

[0007] In the above technical scheme, preferably, the water inlet flow channel has a first constant diameter section away from the water inlet cavity and having a constant inner diameter, and a diameter expansion section close to the water inlet cavity, the diameter expansion section gradually expands in inner diameter along the flow direction of fluid.

[0008] In the above technical scheme, preferably, the water outlet flow channel has a second constant diameter section away from the water outlet cavity and having a constant inner diameter, and a diameter reduction section close to the water outlet cavity, the diameter reduction section gradually reduces in inner diameter along the flow direction of fluid.

[0009] In the above technical scheme, preferably, the quick cooling roller further includes a helical member fixedly installed on the outer wall of the inner bag, and the intermediate flow channel is jointly defined by the inner bag, the outer cylinder body and the helical member to axially extend in a helical manner.

[0010] In the above preferred scheme, further preferably, the outer diameter of the water inlet end portion is greater than the outer diameter of the water outlet end portion.

[0011] In the above preferred scheme, further preferably, the outer cutting surface of the helical member forms a taper in the range of 1:160-1:250.

[0012] In the above technical solution, preferably, the intermediate flow channel is configured to gradually decrease in radial cross-sectional area along the direction from the inlet end face to the outlet end face.

[0013] In the above technical solution, preferably, the flow channel inlet is a waist-shaped hole.

[0014] In the above technical solution, preferably, the flow channel outlet is a waist-shaped hole.

[0015] Technicians have discovered that traditional cooling rollers have relatively narrow transition sections between the inlet and intermediate channels, as well as between the outlet and intermediate channels, requiring multiple fluid deflections. Consequently, dirt easily accumulates at these transition points, leading to channel blockage. To address this, the cooling roller of this invention features large inlet and outlet chambers at these two locations. Even with the accumulation of a certain amount of dirt, the flow channels remain unobstructed, preventing blockages. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the rapid cooling roller provided by this utility model;

[0017] Figure 2 for Figure 1 A partial magnification of the rapid cooling roller shown. Figure 1 ;

[0018] Figure 3 for Figure 1 A partial magnification of the rapid cooling roller shown. Figure 2 .

[0019] The image is labeled as follows:

[0020] 100. Rapid cooling roller; Y. Centerline;

[0021] 11. Pipe body; 12. Inlet flange; 13. Outlet flange; 14. Support flange; 15. Flow channel inlet; 16. Flow channel outlet; 17. Spiral component;

[0022] 2. Water inlet cap;

[0023] 3. Water outlet cap;

[0024] 4. Water inlet shaft head;

[0025] 5. Water outlet shaft head;

[0026] 6. Outer cylinder;

[0027] 71. Inlet channel; 72. Inlet chamber; 73. Intermediate channel; 74. Outlet chamber; 75. Outlet channel. Detailed Implementation

[0028] To explain in detail the technical content, structural features, achieved objectives and effects of this application, the technical solutions in the embodiments of this application will be described below with reference to the accompanying drawings.

[0029] In this application, spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side” (e.g., as in a “sidewall”) are used to describe the relationship between one element and another element as shown in the accompanying drawings. Spatial relative terms are intended to include different orientations of the device in use, operation, and / or manufacture other than those depicted in the drawings. For example, if the device in the drawings is flipped, an element described as “below” or “under” another element or feature would then be positioned “above” said other element or feature. Thus, the exemplary term “below” can include both above and below orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0030] In this application, unless otherwise specified, the term "axial" refers to the direction of the axis of the rapid cooling roller; the term "nested" means that at least part of one component is located inside another component; the term "fixed connection" means that two components are connected in a relatively fixed manner, either directly or indirectly through a third component; and the term "outer diameter" is used.

[0031] In this application, unless otherwise specified, the terms "inner wall surface", "outer wall surface" and "radial end face" of the hollow tube body refer to the circumferential wall surface of the hollow tube body on the side closer to the axis, the circumferential wall surface on the side farther from the axis, and the radial end face located at the outermost point of the hollow tube body in the axial direction, respectively.

[0032] This utility model provides a rapid cooling roller 100 for sheet forming, which can calender and draw high-temperature sheets while simultaneously cooling them. Figure 1 As shown, the rapid cooling roller 100 defines a centerline Y and a fluid path for cooling water flow (not shown in the figure). The rapid cooling roller 100 also has an axially extending inner liner (not shown in the figure), an inlet end cap 2 and an outlet end cap 3 fixedly connected to the inner liner from both axial sides, an inlet shaft head 4 and an outlet shaft head 5 fixedly connected to the inlet end cap 2 and the outlet end cap 3, and an outer cylinder 6 defined between the inlet end cap 2 and the outlet end cap 3. An intermediate flow channel 73 for cooling water flow is formed between the outer cylinder 6 and the inner liner.

[0033] The inner container is the main body of the rapid cooling roller 100, which can provide support for other components including the outer cylinder 6. The inner container of the present embodiment is in the form of a barrel structure, which includes an axially extending tube body 11 and radially extending water inlet flange 12 and water outlet flange 13 fixedly connected to both sides of the tube body 11 respectively. The tube body 11 has an axially extending water inlet end and a water outlet end, the water inlet end protrudes axially outward relative to the water inlet flange 12 and forms a water inlet surrounding edge (not marked in the figure), and the water outlet end protrudes axially outward relative to the water outlet flange 13 and forms a water outlet surrounding edge (not marked in the figure).

[0034] The tube body 11 of the present embodiment is made of a thick-walled seamless steel pipe to increase the overall rigidity of the rapid cooling roller 100 and reduce the deflection deformation of the roller.

[0035] Further, the inner container further includes a support flange 14 fixedly connected to the inside of the tube body 11 at the middle position, which radially extends and has a central hole (not marked in the figure). The support flange 14 is used to increase the structural strength of the tube body 11 to avoid radial deformation of the tube body 11.

[0036] In other embodiments, the inner container can also have other structures, such as a sleeve structure with a double-layer hollow tube body, as long as the water inlet flange, the water outlet flange, the water inlet surrounding edge and the water outlet surrounding edge are formed on the inner container.

[0037] In combination with Figure 2 The water inlet end cover 2 has a mounting hole (not marked in the figure) for connecting the water inlet shaft head 4, and the outer wall of the water inlet end cover 2 forms a first step structure. The first step structure has a first outer circumferential surface (not marked in the figure) contacting the inner wall surface of the water inlet surrounding edge of the tube body 11 and a first radial surface (not marked in the figure) contacting the radial end surface of the water inlet surrounding edge of the tube body 11. The water inlet end cover 2, the water inlet flange 12 and the water inlet surrounding edge jointly define a water inlet cavity 72 for the flow of cooling water. The water inlet surrounding edge has a plurality of radial through-flow passages 15, each of which is in fluid communication with the water inlet cavity 72. The water inlet cavity 72 has a larger fluid space, which can increase the fluid flow while avoiding dirt from blocking the connection between the water inlet flow passage 71 and the intermediate flow passage 73, thereby ensuring smooth fluid flow.

[0038] Each of the above-mentioned flow passage inlets 15 is a waist-shaped hole to maximize the flow of the flow passage inlet 15 while ensuring the strength of the first end.

[0039] The water inlet end cover 2 of the present embodiment is fixed to the tube body 11 by welding. In other embodiments, the water inlet end cover can be fixed to the tube body by various ways such as bolt connection, threaded connection, etc. as long as the water inlet end cover and the inner container can form a transition cavity.

[0040] Similarly, in combination with Figure 3 The water outlet end cover 3 is provided with a mounting hole (not shown in the figure) for connecting the water outlet shaft head 5, and the outer wall of the water outlet end cover 3 is formed with a second stepped structure. The second stepped structure has a second outer circumferential surface (not shown in the figure) contacting the inner wall surface of the water outlet surrounding edge and a second radial surface (not shown in the figure) contacting the radial end surface of the water outlet surrounding edge. The water outlet end cover 3, the water outlet flange and the water outlet surrounding edge together define a water outlet cavity 74 in which cooling water can flow. The second end of the pipe body 11 is provided with a plurality of radial through-flow passages 16, and each flow passage outlet 16 is in fluid communication with the water outlet cavity 74. The water outlet cavity 74 has a larger fluid space, which can increase the fluid flow while avoiding dirt from blocking the connection between the water outlet flow passage 75 and the intermediate flow passage 73, ensuring smooth fluid flow.

[0041] Each of the above flow passage outlets 16 is a waist-shaped hole to maximize the flow of the flow passage outlet 16 while ensuring the strength of the first end.

[0042] The water outlet end cover 3 of the embodiment is fixed to the pipe body 11 by welding. In other embodiments, the water outlet end cover can be fixed to the pipe body by various means such as bolt connection, threaded connection, etc., provided that the water outlet end cover and the inner container can form a transition cavity.

[0043] The water inlet shaft head 4 is fixedly installed in the mounting hole of the water inlet end cover 2. The water inlet shaft head 4 is provided with a water inlet flow passage 71 for cooling water to flow into the quick cooling roller 100, and the water inlet flow passage 71 is in fluid communication with the above-mentioned water inlet cavity 72. The water inlet shaft head 4 and the water inlet end cover 2 can be fixedly connected by welding, fastener connection, threaded connection, etc.

[0044] Further, the water inlet flow passage 71 includes a first constant diameter section away from the water inlet cavity 72 and a diameter expanding section close to the water inlet cavity 72. The first constant diameter section of the water inlet flow passage 71 has a constant inner diameter, and the diameter expanding section of the water inlet flow passage 71 has an inner diameter that continuously expands in the direction towards the water inlet cavity 72. The provision of the diameter expanding section expands the space of the water inlet flow passage 71, avoiding the complete blockage of the water inlet flow passage by dirt attached thereto.

[0045] Similarly, the water outlet shaft head 5 is fixedly installed in the mounting hole of the water outlet end cover 3. The water outlet shaft head 5 is provided with a water outlet flow passage 75 for cooling water to flow out of the quick cooling roller 100, and the water outlet flow passage 75 is in fluid communication with the above-mentioned water outlet cavity 74. The water outlet shaft head 5 and the water outlet end cover 3 can be fixedly connected by welding, fastener connection, threaded connection, etc.

[0046] The water outlet channel 75 includes a second constant diameter section away from the water outlet cavity 74 and a reduced diameter section close to the water outlet cavity 74. The second constant diameter section of the water outlet channel 75 has a constant inner diameter, and the reduced diameter section of the water outlet channel 75 has a continuously reduced inner diameter in a direction away from the water outlet cavity 74. The reduced diameter section is used to increase the flow rate of the cooling water to flush away dirt formed on the water outlet channel 75.

[0047] The outer wall surface of the inner container is fixedly provided with a helical member 17 extending in a helical shape with the axis Y as the generatrix. The intermediate channel 73 is formed by the inner wall of the outer cylinder 6, the pipe body 11 and the helical member 17, and extends axially in a helical shape defined by the above three. The cross-sectional area of the intermediate channel 73 is configured to gradually decrease in a direction from the water inlet end to the water outlet end, so as to gradually increase the flow rate of the cooling water and ensure that the cooling capacity of the rapid cooling roller 100 in the axial direction does not decrease significantly. The outer diameter of the water inlet end of the inner container is greater than the outer diameter of the water outlet end. The outer cutting surface of the helical member 17 forms a taper in the range of 1:160-1:250.

[0048] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made in accordance with the spirit of the present application should be covered within the protection scope of the present application.

Claims

1. A rapid cooling roller for sheet forming, comprising an axially extending inner liner, an inlet end cap, an outlet end cap, an inlet shaft head with an inlet flow channel, an outlet shaft head with an outlet flow channel, and an outer cylinder body sleeved on the outside of the inner liner, wherein the inner liner and the outer cylinder body form an intermediate flow channel for cooling water flow, characterized in that, The inner tank has an inlet end, an outlet end axially away from the inlet end, an inlet flange installed at the inlet end and extending radially, and an outlet flange installed at the outlet end and extending radially. The inlet end has an inlet rim protruding outward relative to the inlet flange, and the outlet end has an outlet rim protruding outward relative to the outlet flange. The inlet end, the inlet flange, and the inlet rim together form an inlet cavity. The inlet rim has a plurality of flow channel inlets. The outlet end, the outlet flange, and the outlet rim together form an outlet cavity. The outlet rim has a plurality of flow channel outlets. The inlet flow channels, the inlet cavity, the plurality of flow channel inlets, the intermediate flow channel, the plurality of flow channel outlets, the outlet cavity, and the outlet flow channels are sequentially fluidly connected.

2. The rapid cooling roller according to claim 1, characterized in that, The water inlet channel has a first constant diameter section that is far from the water inlet cavity and has a constant inner diameter, and an enlarged diameter section that is close to the water inlet cavity. The inner diameter of the enlarged diameter section gradually increases along the flow direction of the fluid.

3. The rapid cooling roller according to claim 1, characterized in that, The water outlet channel has a second equal diameter section that is far from the water outlet cavity and has a constant inner diameter, and a narrowing diameter section that is close to the water outlet cavity. The inner diameter of the narrowing diameter section gradually decreases along the flow direction of the fluid.

4. The rapid cooling roller according to claim 1, characterized in that, It also includes a spiral component fixedly connected to the outer wall of the inner liner, and the intermediate flow channel is defined by the inner liner, the outer cylinder and the spiral component to extend axially in a spiral shape.

5. The rapid cooling roller according to claim 4, characterized in that, The intermediate flow channel is configured such that its radial cross-sectional area gradually decreases along the direction from the inlet end to the outlet end.

6. The rapid cooling roller according to claim 5, characterized in that, The outer diameter of the inlet end is larger than the outer diameter of the outlet end.

7. The rapid cooling roller according to claim 5, characterized in that, The outer tangent of the spiral component forms a taper in the range of 1:160-1:

250.

8. The rapid cooling roller according to claim 1, characterized in that, The flow channel inlet is a waist-shaped hole.

9. The rapid cooling roller according to claim 1, characterized in that, The outlet of the flow channel is a waist-shaped hole.

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