Cooling roller for sheet processing

Abstract

The utility model discloses a cooling roller for sheet machining. The cooling roller comprises a cylindrical inner container, a roller body coaxially arranged on the inner container in a sleeving mode, a plurality of spiral flow channels arranged between the roller body and the inner container, a pair of shaft head assemblies arranged at the two ends of the roller body in a blocking mode correspondingly, and a pair of inner flange sealing plates coaxially installed in the inner container. The multiple spiral flow channels are sequentially arranged in the circumferential direction of the inner container, and each shaft head assembly is provided with a water conveying channel communicating with the interior of the inner container. Each inner flange sealing plate, the shaft head assembly on the corresponding side and the inner container form a water conveying cavity communicating with the corresponding water conveying channel. The inner container is provided with two sets of water passing grooves communicated with the two water conveying cavities respectively, each set of water passing grooves is formed in the circumferential direction of the corresponding water conveying cavity, and the head end and the tail end of each spiral flow channel are communicated with one water passing groove respectively. The cooling roller is simple in structure and convenient to machine, the water inlet amount and the water outlet amount of the spiral flow channel and the cooling water conveying efficiency are improved, and efficient cooling of the cooling roller is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of cooling roll devices, and particularly relates to a cooling roll for sheet processing. Background Art

[0002] With the development of the plastic industry in recent years, the plastic sheet industry has become mature and is used in various fields. As a core component in the extruder production line, high requirements are imposed on the cooling effect of the roll. In the industry under the general environment, people are more eager for high-efficiency and high-output equipment. Currently, the roll usually has a water delivery channel communicating with the outside opened at the shaft head and several inlet / outlet holes circumferentially distributed around the water delivery channel. Water passing holes corresponding to the inlet / outlet holes are opened on the inner liner, and then connecting water pipes or distribution flanges are arranged between the water passing holes and the inlet / outlet holes. When installing the roll, it is necessary to pay attention to whether the connecting water pipes or distribution flanges are aligned with the water passing holes and the inlet / outlet holes. The structure is complex, the installation is difficult, and the water inflow and outflow are limited. As a result, the cooling water in the spiral flow channel between the roll body and the inner liner flows slowly, and the temperature of the roll body cannot be quickly and efficiently reduced, which cannot meet the production requirements of the current high-efficiency and high-output production line. Summary of the Invention

[0003] In order to solve the above technical problems, the purpose of the present application is to provide a cooling roll for sheet processing.

[0004] To achieve the above object, the present application adopts the following technical solution: A cooling roll for sheet processing, comprising:

[0005] An inner liner, which is cylindrical;

[0006] A roll body, coaxially sleeved on the inner liner;

[0007] A plurality of spiral flow channels, arranged between the roll body and the inner liner, the plurality of spiral flow channels are arranged in sequence along the circumferential direction of the inner liner, and each of the spiral flow channels spirally extends along the outer wall surface of the inner liner;

[0008] A pair of shaft head assemblies, respectively plugged at both ends of the roll body and coaxially arranged with the roll body, each of the shaft head assemblies having a water delivery channel communicating with the inside of the inner liner; and

[0009] A pair of inner flange sealing plates, coaxially installed inside the inner liner, each of the inner flange sealing plates and the corresponding shaft head assembly and the inner liner form a water delivery cavity communicating with the corresponding water delivery channel;

[0010] Among them, two groups of water channels are formed on the inner liner, and the two groups of water channels are respectively communicated with the two water delivery cavities. Each group of water channels is arranged circumferentially around the corresponding water delivery cavity, and the head and tail ends of each spiral flow channel are respectively communicated with one of the water channels.

[0011] In the above technical solution, further preferably, it includes a plurality of spiral fins, and the plurality of spiral fins are installed between the roll body and the inner liner and are arranged at intervals circumferentially around the inner liner. An adjacent two spiral fins and the outer wall surface of the inner liner and the inner wall surface of the roll body define a spiral flow channel.

[0012] In the above technical solution, further preferably, stop holes for cooperating with the inner flange sealing plate are respectively formed at both ends of the inner wall surface of the inner liner. The stop holes are coaxial with the inner liner, and the diameter of the stop holes is larger than the inner diameter of the inner liner. The diameter of the inner flange sealing plate is the same as the diameter of the stop holes.

[0013] In the above technical solution, further preferably, each shaft head assembly includes a through-hole shaft head and a shaft sleeve flange coaxially sleeved on the through-hole shaft head. The water delivery channel is formed inside the through-hole shaft head, and the shaft sleeve flange seals the gap between the end of the inner liner and the end of the roll body.

[0014] In the above technical solution, further preferably, a plurality of reinforcing rib plates are further installed inside the inner liner. The plurality of reinforcing rib plates are all coaxially arranged with the inner liner and are distributed at intervals along the axial direction of the inner liner. The plurality of reinforcing rib plates are located between the pair of inner flange sealing plates, and the diameter of the reinforcing rib plates is the same as the inner diameter of the inner liner.

[0015] In the above technical solution, further preferably, the inner liner, the plurality of reinforcing rib plates, the pair of inner flange sealing plates, the roll body and the pair of shaft head assemblies are assembled by coaxial hot sleeving.

[0016] The present application obtains the following beneficial effects compared with the prior art:

[0017] By installing an inner flange sealing plate inside the inner liner and forming water channels on the inner liner, the present application enables the spiral flow channel to be communicated with the water delivery channel on the shaft head assembly, avoiding the traditional shaft head from opening multiple inlet and outlet holes and installing connecting water pipes. The structure of the present application is simple, convenient for processing, improves the water inlet and outlet volume of the spiral flow channel and the efficiency of cooling water delivery, and ensures the efficient cooling of the cooling roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the internal structure of a cooling roller provided by an embodiment of the present application;

[0019] Figure 2 For Figure 1 The partial enlarged schematic view at position A in

[0020] Figure 3 For Figure 1 The three-dimensional structure schematic view of the inner tank in

[0021] Figure 4 For Figure 3 The full cross-sectional view of the inner tank of

[0022] Wherein: 100, cooling roller; 10, roller body assembly; 1, inner tank; 11, water through groove; 12, spigot hole; 2, roller body; 3, spiral flow channel; 6, spiral fin; 4, shaft head assembly; 41, through-hole shaft head; 410, water delivery channel; 42, shaft sleeve flange; 5, inner flange sealing plate; 7, water delivery cavity; 8, reinforcing rib plate. Specific embodiments

[0023] To describe in detail the technical content, structural features, achieved objectives and effects of the application, the following will describe the technical solutions in the embodiments of the present application in combination with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. In the following description, for the purpose of explanation, many specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments can also be implemented without these specific details or in the case of one or more equivalent arrangements. In addition, various exemplary embodiments can be different, but not necessarily exclusive. For example, without departing from the inventive concept, the specific shapes, structures and characteristics of the exemplary embodiments can be used or implemented in another exemplary embodiment.

[0024] The embodiment of the present application provides a cooling roller for sheet processing, the cooling roller has a simple structure and rapid cooling, meeting the current high-efficiency and high-speed production requirements.

[0025] As Figure 1 shown, the cooling roller 100 includes an inner tank 1, a roller body 2, a plurality of spiral flow channels 3, a pair of shaft head assemblies 4 and a pair of inner flange sealing plates 5. The inner tank 1 and the roller body 2 are both cylindrical, the roller body 2 is coaxially sleeved outside the inner tank 1, a plurality of spiral flow channels 3 are formed between the outer wall surface of the inner tank 1 and the inner wall surface of the roller body 2, a pair of shaft head assemblies 4 are respectively arranged at the left end and the right end of the roller body 2 to supply water to and discharge water from the plurality of spiral flow channels 3, and a pair of inner flange sealing plates 5 are arranged opposite to each other left and right inside the inner tank 1 and are coaxially arranged with the inner tank 1.

[0026] As Figure 1 , 2As shown in the figure, the inner tank 1 is made of seamless pipe material, and the roll body 2 is made of thin-walled seamless pipe. A plurality of spiral fins 6 are welded on the outer wall surface of the inner tank 1 to form an integral inner tank assembly. The plurality of spiral fins 6 are arranged at intervals along the circumferential direction of the inner wall 1 and extend spirally along the axial direction of the inner tank 1. The roll body 2 is thermally interference-fitted on the inner tank assembly to form an integral roll body assembly 10, ensuring the overall strength of the roll body assembly 10. The inner wall surface of the roll body 2 is in contact with the outer end surfaces of the respective spiral fins 6. The adjacent two spiral fins 6, the outer wall surface of the inner tank 1, and the inner wall surface of the roll body 2 define a spiral flow channel 3. The plurality of spiral fins 6 define a plurality of spiral flow channels 3 between the inner tank 1 and the roll body 2. The plurality of spiral flow channels 3 are arranged in sequence along the circumferential direction of the inner tank 1, and each spiral flow channel 3 extends spirally along the outer wall surface of the inner tank 1. Cooling water flows through the spiral flow channel 3. The relatively thin roll body 2 accelerates the heat exchange between the roll body 2 and the cooling water in the spiral flow channel 3, improving the cooling efficiency and cooling effect of the cooling roll 100.

[0027] A pair of shaft head assemblies 4 are coaxially installed at the left and right ends of the roll body assembly 10 formed by the inner tank 1, the roll body 2, and the plurality of spiral fins 6. Each shaft head assembly 4 includes a through-hole shaft head 41 and a shaft sleeve flange 42 coaxially sleeved on the through-hole shaft head 41. A water delivery channel 410 extending through the through-hole shaft head 41 in the left-right direction is provided in the through-hole shaft head 41. When the shaft head assembly 4 is installed at the end of the roll body assembly 10, the water delivery channel 410 is communicated with the inside of the inner tank 1. The shaft sleeve flange 42 is assembled with the through-hole shaft head 41 by thermal shrinking. The roll body assembly 10 is coaxially assembled with the shaft sleeve flange 42 by thermal shrinking. The shaft sleeve flange 42 seals the gap between the end of the roll body 2 and the end of the inner tank 1, preventing the cooling water in the spiral flow channel 3 from leaking from the connection between the roll body assembly 10 and the shaft head assembly 4.

[0028] A pair of inner flange sealing plates 5 are respectively arranged adjacent to the left end and the right end of the inner tank 1. Each inner flange sealing plate 5 and the corresponding shaft head assembly 4 and the inner tank 1 define a water delivery cavity 7 communicating with the water delivery channel 410 on the corresponding side.

[0029] As Figures 2-4 shown, a group of water through-grooves 11 are respectively milled on the inner tank 1 in the circumferential direction of each water delivery cavity 7. Each group of water through-grooves 11 includes a plurality of water through-grooves 11 arranged at intervals along the circumferential direction of the corresponding water delivery cavity 7. Each water through-groove 11 communicates with a spiral flow channel 3 and the corresponding water delivery cavity 7, enabling each water delivery channel 410 to deliver water to the plurality of spiral flow channels 3 through the communicating water delivery cavity 7, or enabling the plurality of spiral flow channels 3 to output water to the corresponding water delivery channel 410 through the communicating water delivery cavity 7. In the embodiment of the present application, the water through-grooves 11 of each group are equally angularly distributed along the circumferential direction of the inner tank 1.

[0030] As Figure 1As shown, since a pair of inner flange sealing plates 5 are arranged opposite to each other left and right, the left and right ends of each spiral flow channel 3 are respectively communicated with a water through-channel 11. The water delivery channel 410 on one side, the water delivery cavity 7 on one side, several spiral flow channels 3, the water delivery cavity 7 on the other side, and the water delivery channel 410 on the other side are sequentially fluidly communicated to form a one-way water delivery path. Cooling water is input into several spiral flow channels 3 from the shaft head assembly 4 on one side, exchanges heat with the roll body 2, and then is output from the shaft head assembly 4 on the other side of the cooling roll 100, realizing the cooling of the roll body 2. The cooling water flows smoothly and quickly.

[0031] As Figures 1-4 shown, stop holes 12 that cooperate with the inner flange sealing plates 5 are respectively opened at the left and right ends of the inner wall surface of the inner tank 1. The stop holes 12 are coaxial with the inner tank 1, and the diameter of the stop holes 12 is larger than the inner diameter of the inner tank 1 and smaller than the outer diameter of the inner tank 1. The diameter of the inner flange sealing plates 5 is the same as the diameter of the stop holes 12. Each group of water through-channels 11 is opened in the circumferential direction of the stop holes 12, and the dimension of each water through-channel 11 in the left-right direction and the dimension of the inner flange sealing plates 5 in the left-right direction together are smaller than the dimension of the stop holes 12 in the left-right direction. The inner tank 1 is coaxially heat-shrunk on the circumferential direction of the inner flange sealing plates 5, and the stop holes 12 limit the position of the inner flange sealing plates 5 in the left-right direction.

[0032] Continue to refer to Figure 1 , several reinforcing rib plates 8 are also installed inside the inner tank 1. The diameter of each reinforcing rib plate 8 is the same as the inner diameter of the inner tank 1. The inner tank 1 is coaxially heat-shrunk on the circumferential direction of several reinforcing rib plates 8, and several reinforcing rib plates 8 are distributed at intervals along the axial direction of the inner tank 1. Several reinforcing rib plates 8 are also located between a pair of inner flange sealing plates 5. The number of reinforcing rib plates 8 is controlled according to the specifications of the roll to ensure the strength of the roll.

[0033] Several reinforcing rib plates 8, a pair of inner flange sealing plates 5, the inner tank 1, a pair of shaft head assemblies 4, and the roll body 2 are coaxially heat-shrunk and assembled. Several reinforcing rib plates 8, a pair of inner flange sealing plates 5, and a pair of shaft head assemblies 4 strengthen the overall strength of the cooling roll 100.

[0034] In this application, by installing inner flange sealing plates inside the inner tank and opening water through-channels on the inner tank, the spiral flow channels are communicated with the water delivery channels on the shaft head assembly, avoiding the traditional shaft head from opening multiple inlet and outlet holes and installing connecting water pipes. The structure of this application is simple, improving the water inflow and outflow of the spiral flow channels and the efficiency of cooling water delivery, and ensuring the efficient cooling of the cooling roll.

[0035] The foregoing has shown and described the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and what is described in the above embodiments and the specification only illustrates the principles of the present application. Without departing from the spirit and scope of the present application, the present application will have various changes and improvements. The scope of protection claimed by the present application is defined by the appended claims, the specification and their equivalents.

Claims

1. A cooling roller for sheet processing, characterized in that, Comprising: An inner tank, in a cylindrical shape; A roll body, coaxially sleeved on the inner tank; A plurality of spiral channels, arranged between the roll body and the inner tank, the plurality of spiral channels are sequentially arranged along the circumferential direction of the inner tank, and each of the spiral channels spirally extends along the outer wall surface of the inner tank; A pair of shaft head assemblies, respectively plugged at both ends of the roll body and coaxially arranged with the roll body, each of the shaft head assemblies has a water delivery channel communicating with the inside of the inner tank; And A pair of inner flange sealing plates, coaxially installed inside the inner tank, each of the inner flange sealing plates and the corresponding shaft head assembly on one side and the inner tank form a water delivery cavity communicating with the corresponding water delivery channel; Wherein, two groups of water through grooves are opened on the inner tank, the two groups of water through grooves are respectively communicated with the two water delivery cavities, and each group of water through grooves is opened in the circumferential direction of the corresponding water delivery cavity, and the head and tail ends of each spiral channel are respectively communicated with one of the water through grooves.

2. The cooling roller according to claim 1, wherein, Comprising a plurality of spiral fins, the plurality of spiral fins are installed between the roll body and the inner tank, and are arranged at intervals along the circumferential direction of the inner tank, and adjacent two of the spiral fins and the outer wall surface of the inner tank and the inner wall surface of the roll body define one of the spiral channels.

3. The cooling roller according to claim 1, wherein At both ends of the inner wall surface of the inner tank, there are respectively opened stop holes for cooperating with the inner flange sealing plates, the stop holes are coaxial with the inner tank, and the diameter of the stop holes is larger than the inner diameter of the inner tank, and the diameter of the inner flange sealing plates is the same as the diameter of the stop holes.

4. The cooling roller according to claim 1, wherein Each of the shaft head assemblies includes a through hole shaft head and a shaft sleeve flange coaxially sleeved on the through hole shaft head, the water delivery channel is opened inside the through hole shaft head, and the shaft sleeve flange plugs the gap between the end of the inner tank and the end of the roll body.

5. The cooling roller according to claim 1, characterized in that, A plurality of reinforcing rib plates are further installed inside the inner tank, the plurality of reinforcing rib plates are all coaxially arranged with the inner tank and are distributed at intervals along the axial direction of the inner tank, the plurality of reinforcing rib plates are located between the pair of inner flange sealing plates, and the diameter of the reinforcing rib plates is the same as the inner diameter of the inner tank.

6. The cooling roller according to claim 5, characterized in that, The inner tank, the plurality of reinforcing rib plates, the pair of inner flange sealing plates, the roll body and the pair of shaft head assemblies are coaxially hot-sleeved and assembled.

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