Width-adjustable rotary screen and dryer

Abstract

A breadth-adjustable rotary screen comprises a main shaft, a rotary screen, a fixed wind shield and a first wind shield, the main shaft and the rotary screen are coaxially arranged, the fixed wind shield and the first wind shield are sleeved with the rotary screen, the two sides of the rotary screen are rotationally connected with the main shaft through bearings, the fixed wind shield and the first wind shield are each of a semi-cylindrical structure, and the fixed wind shield is fixed to the main shaft through a fixing support arranged in the fixed wind shield. The first wind shield is arranged at the axial end of the fixed wind shield and connected with the fixed wind shield to form an annular structure, and the fixed wind shield is further provided with a second wind shield sliding in the axial direction of the fixed wind shield. The second wind shield and the first wind shield are used in cooperation, and the second wind shield and the fixed wind shield jointly form a wind shield structure for adjusting the area of the air outlet of the rotary screen through sliding of the second wind shield in the rotary screen. The device has the advantages of being simple in structure, convenient to operate and low in cost.

Description

Technical Field

[0001] The utility model discloses a round screen with adjustable width and a drying machine, in particular to a cloth drying device, belonging to the technical field of non-woven fabrics. Background Art

[0002] Normally, the width of the dryer's circular screen is fixed (about 3500mm), and the product width (about 3300mm) is smaller than the width of the dryer's circular screen. When drying the fabric, hot air will be drawn from the position of the circular screen that is not covered by the fabric, which increases the energy consumption (mainly gas) used for drying. In actual production, in order to improve the above adverse effects, a layer of high-temperature resistant rubber (about 100mm wide and 5mm thick) is wrapped around the outer side of both ends of the circular screen; the edge loss rate is reduced by adjusting the width of the combed cotton net. In order to adapt to the adjusted width, it is also necessary to add rubber to the circular screen. However, usually, the dryer is used continuously. If the rubber is to be added, the temperature of the dryer needs to be cooled to room temperature, and the peeling needs to be increased before the temperature is increased for drying, which not only causes a large amount of energy loss, but also greatly reduces the efficiency of fabric drying. At the same time, in order to facilitate production monitoring, it is necessary to add rubber to the inner side of the circular screen, and workers need to climb into the circular screen to operate, which is very inconvenient; if the operation is performed when the dryer is not completely cooled, it is easy for workers to get scalded.

[0003] In the prior art, an invention patent application with application number 202110581077.2 discloses an online electric width adjustment device for a rotary screen dryer oven, comprising a rotary screen and a motor, a connecting seat is provided at the left end of the left fixed seat, the left end of the rotating cylinder extends through the connecting seat, and the output end of the motor drives a first screw and a second screw through a coupling, and a fixed cylinder and a movable cylinder are sleeved on both sides of the rotating cylinder, the first screw and the second screw extend into the rotating cylinder, and the right ends of the first screw and the second screw are respectively fixedly connected to the first screw fixing seat and the second screw fixing seat, the first screw fixing seat and the second screw fixing seat are respectively connected to the corresponding movable cylinder through the first pin shaft and the second pin shaft, and the movable cylinder is connected to a wind shield through a support plate. The present invention drives the first screw and the second screw by a motor, so as to adjust the movement of the left and right groups of wind shields, thereby realizing the width adjustment between the wind shields on the left and right sides. Although the invention patent application discloses a technical solution that may realize the adjustment of the width of the rotary screen, it does not solve the problem that during the drying process of the cloth, hot air will be drawn away from the position of the rotary screen that is not covered by the cloth, resulting in increased consumption of heat energy used for drying. Therefore, the rotary screen structure and working principle in the patent application are different from those of the utility model, and the technical effect of the utility model is not achieved. It can be seen that the prior art does not provide a technical solution to the above-mentioned or related problems. Summary of the invention

[0004] The purpose of the utility model is to solve the problem of adjusting the width of the circular net by a fixed wind shield plate, a first wind shield plate and a second wind shield plate mounted on the first wind shield plate, which together form a wind shield structure in which the air outlet area of ​​the circular net is slidably adjusted by the second wind shield plate, thereby solving the problem of increasing energy consumption caused by hot air being drawn away (or overflowing) from the position of the circular net not covered by cloth, thereby achieving the effect of saving energy and reducing emissions and improving drying efficiency.

[0005] The utility model is realized by the following technical solutions:

[0006] A circular screen with adjustable width comprises a coaxially arranged main shaft and circular screen, and a fixed windshield and a first windshield sleeved in the circular screen. Both sides of the circular screen are rotatably connected to the main shaft through bearings. The fixed windshield and the first windshield are both semi-cylindrical structures. The fixed windshield is fixed to the main shaft through a fixed bracket arranged therein. The first windshield is arranged at the axial end of the fixed windshield and is connected to the fixed windshield to form a circular ring structure. The fixed windshield is also provided with a second windshield that slides along its axial direction. The second windshield is used in conjunction with the first windshield and forms a windshield structure with the fixed windshield in the circular screen, and the air outlet area of ​​the circular screen is adjusted by sliding the second windshield.

[0007] Furthermore, the second windshield is axially slidably connected to the main shaft via a second bracket arranged therein.

[0008] Furthermore, an adjustment support is provided between the main shaft and the second bracket. The adjustment support is fixed on the main shaft and is provided with a guide rail extending axially along the main shaft. The guide rail is sleeved with an adjustment slider. The second bracket is fixed on the adjustment slider and slides in the direction guided by the guide rail.

[0009] Furthermore, an adjusting rod for controlling the sliding of the second wind deflector and at least one fixed support for supporting the adjusting rod are provided in the circular net. The fixed support is vertically arranged on the main shaft. One end of the fixed support is fixedly connected to the main shaft, and the other end is provided with a through hole. One end of the adjusting rod passes through the through hole and is movably connected to the second bracket or the adjusting slider, and the other end is provided with an adjusting handle. The outer side of the circular net is provided with an adjusting hole used in conjunction with the adjusting handle.

[0010] Furthermore, the adjusting rod is an adjusting screw, and the through hole is provided with an internal thread matching with the adjusting screw.

[0011] Furthermore, a sealing strip for preventing air leakage is provided on the circumferential surface of the outer side of the second windshield plate.

[0012] A drying machine comprises the aforementioned circular net with adjustable width.

[0013] Furthermore, a bearing seat is provided on the main shaft near the outer side of the cylinder, and a sprocket wheel capable of driving the cylinder to rotate axially is provided between the bearing seat and the cylinder.

[0014] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0015] (1) The utility model comprises a fixed wind shield plate with a semicircular arc structure and a first wind shield plate which are sleeved inside the round net, and a second wind shield plate which slides axially on the fixed wind shield plate. The second wind shield plate cooperates with the first wind shield plate to form a wind shield structure inside the round net, in which the outlet area of ​​the round net can be adjusted by sliding the second wind shield plate, thereby achieving the function of adjusting the width of the round net.

[0016] (2) The utility model provides an adjustment support between the main shaft and the second support, and provides a guide rail extending along the axial direction of the main shaft and an adjustment slider sleeved on the guide rail on the adjustment support, and the second support is fixedly connected to the adjustment slider, so that the adjustment slider drives the second support to slide along the guide direction of the guide rail (i.e. the axial direction of the main shaft), thereby achieving the purpose of adjusting the width of the circular screen.

[0017] (3) The utility model realizes the purpose of the adjusting rod driving the second wind shield to move axially with the main shaft by means of an adjusting rod which is arranged axially with the main shaft in the circular screen, and a fixed support which is fixed on the main shaft, and the adjusting rod is connected with the second support or the adjusting slider after passing through a through hole arranged on the fixed support, thereby adjusting the width of the circular screen and avoiding the complicated operation of cooling down the interior of the circular screen for adjustment and then heating up, as well as the waste of energy and time, and also avoiding personal injury caused by insufficient cooling during manual operation; in addition, the adjusting rod is arranged as an adjusting screw, and an internal thread which cooperates with the adjusting screw is arranged on the through hole, and then the adjusting screw is connected with the second support and the adjusting slider after passing through the through hole, and drives the second support or the adjusting slider to move axially with the main shaft, thereby more accurately controlling the slider distance of the second wind shield, thereby achieving more accurate adjustment of the width of the circular screen.

[0018] (4) The utility model makes it easier to adjust and control the second windshield plate by providing an adjustment hole that cooperates with the adjustment screw on the outer side of the round net and providing an adjustment handle at one end of the adjustment screw near the adjustment hole, thereby solving the problem of inconvenient adjustment caused by the first windshield plate and the second windshield plate arranged thereon being arranged on the inner side of the round net, thereby improving convenience and operability.

[0019] (5) The utility model provides a sealing strip between the first wind shield and the second wind shield to prevent air leakage, thereby enhancing air tightness and further reducing energy consumption required for drying.

[0020] (6) The utility model realizes the adjustment of the width of the circular screen in the dryer by arranging the above-mentioned adjustable width circular screen in the dryer, thereby improving the working efficiency of the dryer, enhancing the convenience of using the dryer, reducing the difficulty and energy consumption of adjusting the width of the circular screen, and achieving the effect of energy saving and environmental protection.

[0021] (7) The utility model further improves the convenience of use of the dryer by arranging a bearing seat on the main shaft near the outer side of the cylinder screen in the dryer, and arranging a sprocket between the bearing seat and the cylinder screen to drive the cylinder screen to rotate axially, so that the dryer is more time-saving and labor-saving when in use.

[0022] To sum up, the utility model has the advantages of simple structure, convenient operation and low cost. It can effectively adjust the width of the circular screen, reduce energy consumption, and reduce the waste of energy and time caused by entering the dryer for width adjustment, thereby effectively improving production efficiency and achieving multiple goals at one stroke. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the rotary screen before the implementation of the new width adjustment;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the rotary screen after the new width adjustment is implemented;

[0025] Figure 3 This is a schematic diagram of the three-dimensional structure inside the round net when the second wind shield in the utility model is located at the initial position;

[0026] Figure 4 This is a schematic diagram of the three-dimensional structure inside the circular net after the second windshield plate in the utility model slides to adjust the windshield area;

[0027] Figure 5 It is a schematic diagram of the cross-sectional structure of the cylinder mesh in the axial direction when the second wind shield plate in the utility model is located at the initial position;

[0028] Figure 6 It is a schematic diagram of the cross-sectional structure of the cylinder net in the axial direction after the second windshield plate in the utility model slides to adjust the windshield opening area;

[0029] Figure 7 It is a schematic diagram of the radial cross-sectional structure of the cylinder screen when the first wind shield plate is not installed in the utility model;

[0030] Figure 8 It is a schematic diagram of the radial cross-sectional structure of the cylinder screen after the first wind shield plate is installed in the utility model;

[0031] Fig. 9 A schematic diagram of a radial cross-sectional structure of a first windshield provided with a second windshield in the utility model;

[0032] Fig.10 It is a schematic diagram of the circular screen setting inside the four-circular screen dryer;

[0033] Among them, 1 is a round net, 2 is a fixed wind shield, 3 is a main shaft, 4 is a bearing seat, 5 is a first wind shield, 6 is a second wind shield, 7 is a second bracket, 8 is a fixed bracket, 9 is an adjustment support, 10 is an adjustment slider, 11 is a fixed support, 12 is an adjustment screw, 13 is an adjustment handle, and 14 is an adjustment hole. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with the embodiments, but the implementation manner of the present invention is not limited thereto.

[0035] Embodiment 1:

[0036] like Figures 1 to 9 As shown, this embodiment discloses a rotary screen with adjustable width, comprising a coaxially arranged main shaft 3, a rotary screen 1, a fixed windshield plate 2 and a first windshield plate 5;

[0037] Round net 1: Figure 1 , Figure 2 as well as Figures 5 to 8 As shown, the round screen 1 has a cylindrical mesh structure, and both sides of the round screen 1 are rotatably connected to the main shaft 3 through bearings;

[0038] Fixed wind deflector 2: Figure 3 and Figure 4 As shown, the fixed windshield 2 is a semi-cylindrical structure, fixed to the main shaft 3 by a fixed bracket 8 arranged therein, and its outer diameter is slightly smaller than the inner diameter of the cylinder 1, and blocks the inner circumference of the cylinder 1, thereby preventing hot air from overflowing from the shielding position;

[0039] First windshield 5: Fig. 9 As shown, it is a semi-cylindrical structure, fixedly arranged at the axial end of the fixed windshield plate 2 and connected with the fixed windshield plate 2 to form a circular ring structure;

[0040] Second windshield 6: Figures 1 to 6 , Figure 8 and Fig. 9 As shown, it is a semi-cylindrical structure, arranged on the fixed wind shield 2, and slides axially along the fixed wind shield 2. The second wind shield 6 is used in conjunction with the first wind shield 5 in the round net 1 and together with the fixed wind shield 2 to form a wind shield structure in which the second wind shield 6 slides to adjust the air outlet area of ​​the round net 1 (corresponding to the cloth coverage area).

[0041] In this embodiment, the purpose of adjusting the width of the round screen 1 is to prevent the hot air used for drying the cloth in the round screen 1 from being drawn out (or overflowing) from the position of the round screen 1 not covered by the cloth, so as to improve the utilization rate of heat energy and improve the drying. Therefore, it is necessary to form a wind shield structure on the part of the round screen 1 not covered by the cloth. Therefore, in this embodiment, the wind shield structure used is arranged in the round screen 1, and is formed by the fixed wind shield 2, the first wind shield 5 and the second wind shield 6, and the area of ​​the air outlet of the round screen (corresponding to the cloth covering area) is adjusted by sliding the second wind shield 6 (along the axial direction of the fixed wind shield 2). The wind shield structure not only has the function of shielding the uncovered part of the cloth, improving the utilization rate of heat energy, and thus improving the drying efficiency; it also has the function of adjusting the air outlet area, so that it is suitable for drying cloth of different widths, expanding the scope of application of this embodiment.

[0042] During operation, the cylinder 1 rotates around the main axis 3, and the cloth running direction is consistent with the rotation direction of the cylinder 1. At this time, the fixed windshield 2 and the first windshield 5 in the cylinder 1 are fixed, and the hot air in the cylinder 1 will be blown out of the cylinder 1 through the air outlet (that is, the position not blocked by the windshield, corresponding to the cloth covering position) (the direction of hot air blowing is as follows Figure 1 , 5 , 6, and 8), thereby drying the cloth running on the cylinder screen 1; therefore, the air outlet area of ​​the cylinder screen 1 adjusted by sliding the second wind shield plate 6 should match the area of ​​the cloth covering the cylinder screen 1, thereby achieving the effect of reducing energy consumption.

[0043] Furthermore, in order to make the structure of the second wind shield 6 more stable and the sliding more smooth, a second bracket 7 connected to the main shaft 3 and sliding axially along the main shaft 3 is provided in the second wind shield 6 .

[0044] Second bracket 7: Figures 3 to 6 , Figure 8 and Fig. 9 As shown in , the second bracket 7 is arranged on the main shaft 3 and is slidably connected with the main shaft 3 along the axial direction. The second windshield 6 is fixed on the second bracket 7 and slides along the axial direction of the main shaft 3 with the second bracket 7.

[0045] In this embodiment, the second wind shield 6 can be arranged inside or outside the first wind shield 5, and the specific arrangement method is as follows:

[0046] (1) The second windshield 6 is sleeved inside the first windshield 5: At this time, the outer diameter of the second windshield 6 is slightly smaller than the inner diameter of the first windshield 5. The best setting is: the outer diameter of the first windshield 5 is the same as the outer diameter of the fixed windshield 2, the inner diameter of the second windshield 6 is equal to the inner diameter of the fixed hot air plate 2, the inner wall of the second windshield 6 is fixedly connected to the second bracket 7 arranged therein and connected axially along the main shaft 3, and slides axially along the main shaft 3 in the first windshield 5 with the second bracket 7;

[0047] (2) The second wind shield 6 is placed outside the first wind shield 5: At this time, the inner diameter of the second wind shield 6 is slightly larger than the outer diameter of the round screen 1. The best setting is: the inner diameter of the first wind shield 5 is the same as the inner diameter of the fixed wind shield 2, the outer diameter of the second wind shield 6 is equal to the outer diameter of the fixed hot air plate 2, and the second wind shield 6 is fixedly connected to the second bracket 7 on the side of the second wind shield 6 away from the first wind shield 5, and slides axially along the main shaft 3 with the second bracket 7.

[0048] In addition, the second wind shield 6 can also be set to a single-layer structure or a multi-layer structure according to the size of the air outlet area that needs to be adjusted. The purpose is to enable the second wind shield 6 to slide from its initial position along the axial direction of the fixed wind shield 2 (which is also the axial direction of the main shaft 3) to a position where the first wind shield 5 is not covered and the cloth running on the circular screen 1 is not covered, so as to adjust the air outlet area in the circular screen 1 (that is, the area for hot air drying the cloth), thereby achieving adjustment of the width of the circular screen 1. Therefore, any structure of the second wind shield 6 that can achieve the above purpose is suitable for this embodiment.

[0049] Initial state: the second wind shield plate 6 and the first wind shield plate 5 are completely overlapped or partially overlapped.

[0050] Directions:

[0051] Step 1: Adjust the position of the second windshield 6 according to the width of the fabric, so that the windshield area formed by the second windshield 6, the first windshield 5 and the fixed windshield 2 can just cover the inner surface of the round net 1 that is not covered by the fabric;

[0052] Step 2: Turn on the drying machine or drying equipment or drying device provided with the circular screen with adjustable width as described in this embodiment.

[0053] If continuous use is required, appropriate adjustments should be made according to the fabric width to meet the requirements of different fabrics for the width of the rotary screen 1, thereby achieving the effect of energy saving and emission reduction.

[0054] After use, the second wind deflector 6 should be restored to its original state for subsequent use.

[0055] Furthermore, in order to make the sliding of the second windshield plate 6 more stable, a sliding device is provided between the main shaft 3 and the second bracket 7, which can drive the second bracket 7 to slide axially on the main shaft 3. The sliding device includes an adjustment support 9 provided with a guide rail and an adjustment slider 10 provided on the guide rail.

[0056] Adjust the support 9: Figures 3 to 6 , Figure 8 and Fig. 9As shown in the figure, the adjustment support 9 is fixed on the main shaft 3, on which a guide rail extending axially along the main shaft 3 is provided, and an adjustment slider 10 is sleeved on the guide rail. The second bracket 7 is fixed on the adjustment slider 10 and slides in the guiding direction of the guide rail (i.e., the axial direction of the main shaft 3).

[0057] In the present embodiment, the sliding device is provided for the purpose of driving the second bracket 7 to slide along the axial direction of the main shaft 3, and making the second wind deflector 6 slide along with the second bracket 7, so as to adjust the width of the circular screen 1. At the same time, it can prevent the second bracket 7 from sliding directly on the main shaft 3 and causing wear of the main shaft 3. Therefore, any sliding device that can achieve the above purpose can be applied to the present embodiment.

[0058] Furthermore, in order to improve the convenience and practicality of this embodiment and make the width adjustment of the rotary screen 1 more convenient and labor-saving, the following optimizations are performed:

[0059] 1. An adjusting rod is arranged in the cylinder 1, and at least one fixed support 11 is arranged on the main shaft 3. One end of the fixed support 11 is fixed on the main shaft 3, and the other end is provided with a through hole for the adjusting rod to pass through. The diameter of the through hole is set larger than the diameter of the adjusting rod, so that the adjusting rod can pass through the through hole and connect with the second bracket 7 or the adjusting slider 10, and drive the second bracket 7 (and the second windshield 6 fixed thereon) to slide in the axial direction of the main shaft 3 (i.e., on the adjusting support 9). At this time, the adjusting rod is arranged along the axial direction of the main shaft 3, and the adjustment will be smoother.

[0060] In this embodiment, the adjusting rod used is an adjusting screw 12, and the through hole is a threaded hole, in which an internal thread matching the adjusting screw 12 is arranged. After passing through the threaded hole, the adjusting screw 12 is connected to the second bracket 7 or the adjusting slider 10, so that the adjusting screw 12 drives the second bracket 7 (and the second wind shield 6 fixed thereon) to slide along the axial direction of the main shaft 3, that is, the guide rail guiding direction.

[0061] 2. An adjustment hole 14 for use with the adjustment screw 12 is provided on the outer side surface of the round screen 1, and an adjustment handle 13 for convenient rotation of the adjustment screw 12 is provided at one end of the adjustment screw 12 close to the adjustment hole 14. The adjustment handle 13 can be rotated through the adjustment hole 14 to rotate the adjustment screw 12, and drive the second bracket 7 (and the second windshield 6 fixed thereon) or the adjustment slider 10 (and the second bracket 7 fixed thereon and the second windshield 6 fixed on the second bracket 7) connected to the other end of the adjustment screw 12 to slide along the axial direction of the main shaft 3, thereby realizing the adjustment of the width of the round screen 1; at the same time, it also avoids the occurrence of burns caused by the need to adjust the width of the round screen 1 inside.

[0062] In this embodiment, in order to make the adjustment more convenient, the adjustment handle 13 is set as an adjustment dial, which can save more effort.

[0063] Furthermore, in order to make the airtightness of the windshield structure formed by the fixed windshield 2, the first windshield 5 and the second windshield 6 and adjusted by the sliding of the second windshield 6 better, a sealing strip to prevent air leakage is provided on the circumferential surface of the second windshield 6 adjacent to the first windshield 5. The thickness of the sealing strip should be appropriate not to affect the sliding of the second windshield 6, and can prevent hot air from overflowing from the gap between the first windshield 5 and the second windshield 6. In this embodiment, the sealing strip used is made of rubber, which is economical and has better plasticity and sealing effect.

[0064] After the above optimization, the working principle of this embodiment is still to adjust the air outlet area of ​​the round screen 1 by sliding the second windshield 6 along the axial direction of the fixed windshield 2 (i.e., the axial direction of the main shaft 3), thereby adjusting the width of the round screen 1. Therefore, the optimized technical solution does not have much impact on the use of this embodiment: before use, the initial state of this embodiment remains unchanged; when in use, except for the difference in the adjustment position or the adjustment handle, other methods and steps of use are the same. Of course, after optimization, by turning the adjustment handle 13 to adjust the position of the second windshield 6, the purpose of adjusting the width of the round screen 1 can be achieved, which will also save time and effort and improve work efficiency.

[0065] In this embodiment, one or two first wind shields 5 may be provided, and the specific setting method is as follows:

[0066] 1. Set a first wind shield 5: The first wind shield 6 can be fixed to the end of the fixed wind shield 2 on the inner side of the round net 1 or the end of the fixed wind shield 2 on the outer side of the round net 1, and only a second wind shield 6 used in conjunction with the first wind shield 5 is required.

[0067] (1) The first wind shield plate 5 is arranged at the end of the fixed wind shield plate 2 on the inner side of the cylinder net 1; and the second wind shield plate 6 is arranged on the fixed wind shield plate 2 and slides along its axis. When the second wind shield plate 6 slides toward the outer side of the cylinder net 1, the air outlet area of ​​the cylinder net 1 decreases (that is, the width decreases); when the second wind shield plate 6 slides toward the inner side of the cylinder net 1, the air outlet area of ​​the cylinder net 1 increases (that is, the width increases), thereby realizing the adjustment of the width of the cylinder net 1.

[0068] (2) When the first windshield 5 is arranged at the end of the fixed windshield 2 outside the round net 1: the second windshield 6 is arranged on the fixed windshield 2 and slides along its axis. The second windshield 6 slides toward the inside of the round net 1, and the air outlet area of ​​the round net 1 decreases (i.e., the width decreases). When the second windshield 6 slides toward the outside of the round net 1, the air outlet area of ​​the round net 1 increases (i.e., the width increases), thereby achieving the adjustment of the width of the round net 1. Since the first windshield 5 is arranged at the end of the fixed windshield 2 outside the round net 1, the first windshield 5 and the second windshield 6 used in conjunction with it are close to the outside of the round net 1, and their adjustment is correspondingly more convenient. In addition to the above-mentioned method of controlling the second bracket 7 and the adjusting slider 10 by the adjusting screw 12 to make the second windshield 6 slide, the adjusting rod used to control the second windshield can also be set as a push-pull rod with a simple structure, which can achieve the purpose of adjusting the width of the round net 1. The setting of the push-pull rod here adopts conventional technical means, which will not be repeated here.

[0069] It can be seen that the sliding direction of the second wind shield 6 used for adjusting the air outlet area of ​​the cylinder screen 1 and used in conjunction with the first wind shield 5 changes accordingly when the first wind shield 5 is set at a different position.

[0070] 2. Two first windshields 5 are provided: The two first windshields 5 should be fixed to the two axial ends of the fixed windshield 2, and connected to the fixed windshield 2, and two annular structures are formed at the two ends. At this time, two second windshields 6 are provided to be used in conjunction with the two first windshields 5, and the second windshields 6 slide along the axial direction of the fixed windshield 2 (i.e., the axial direction of the main shaft 3), so as to adjust the width of the round screen 1. At this time, the air outlet area of ​​the round screen 1 is adjusted by the two second windshields 6 sliding along the axial direction of the fixed windshield 2, and the adjustable width range is larger. If the sliding of the two second windshields 6 is synchronously controlled, and the two second windshields 6 are synchronously slid in opposite directions (i.e., sliding toward the middle of the fixed windshield 2, or sliding toward the axial ends of the fixed control plate 2 at the same time, the double effect of the sliding adjustment of the single second windshield 6 can be achieved, i.e., double reduction or double increase, thereby improving the width adjustment efficiency.

[0071] Embodiment 2:

[0072] This embodiment discloses a circular screen with adjustable width, which differs from Embodiment 1 in that the sliding of the second wind shield plate 6 along the axial direction of the first wind shield plate 6 (i.e., the axial direction of the main shaft 3) is achieved by a sliding structure in which the second wind shield plate 6 and the first wind shield plate 5 are cooperated.

[0073] The sliding structure includes a groove provided on the first windshield plate 5 and extending axially along the main shaft 3 and a sliding block provided in the groove. The second baffle plate 6 is fixed on the sliding block and slides axially along the fixed windshield plate 2 (ie, the main shaft 3).

[0074] Regarding solving the problem of sliding control of the second windshield plate 6 in this embodiment, the solution is as follows:

[0075] 1. When the first windshield 5 is provided only on the fixed windshield 2 on the inner side of the cylinder 1:

[0076] (1) As in Embodiment 1, a second bracket 7 is provided in the second windshield 6 and is slidably connected along the axial direction of the main shaft 3, and the sliding control of the second windshield 6 is achieved by adjusting the screw to control the sliding of the second bracket 7;

[0077] (2) A temporary, detachable push-pull rod (i.e., an adjustment rod) is provided on the second wind shield 6, that is, detachable structures are provided on the second wind shield 6 and the push-pull rod, such as a snap connection structure, a bolt connection structure, a latch connection structure, etc., respectively. The detachable structure can be realized and can drive the second wind shield 6 to slide after connection; this method is also applicable to the case where the first wind shield 5 is provided on the fixed wind shield 2 on the outside of the round net 1.

[0078] 2. When two first wind shields 5 are provided: When a first wind shield 5 is provided at each of the two axial ends of the fixed wind shield 2, two second wind shields 6 are provided to be used in conjunction with the two first wind shields 5 respectively, a telescopic rod parallel to the axial direction of the main shaft 3 is provided between the two second wind shields 6, and the distance between the two second wind shields 6 is controlled by the telescopic rod, so that the two second wind shields 6 can slide in opposite directions along the axial direction of the main shaft 3.

[0079] It can be seen that in this embodiment, adjusting the width of the cylinder screen 1 is to adjust the axial position of the second windshield plate 6 in the cylinder screen 1. Therefore, the sliding device, telescopic device and adjusting device that can only achieve the above purpose are applicable to this embodiment.

[0080] In this embodiment, the second wind shield 6 can be arranged inside the first wind shield 5 and connected to the inner circumference of the first wind shield 5 in an axial sliding manner, or can be arranged outside the first wind shield 5 and connected to the outer circumference of the first wind shield 5 in an axial sliding manner, that is, any sliding connection method that can make the second wind shield 6 slide along the axial direction of the main shaft 3 is applicable. Therefore, for this embodiment, any sliding connection method between the second wind shield 6 and the first wind shield 5 that can achieve the purpose of axial sliding of the second wind shield 6 along the main shaft 3 is applicable to this embodiment.

[0081] The working principle of this embodiment is the same as that of Embodiment 1, that is, the width of the rotary screen 1 is adjusted by adjusting the second wind shield 6. The method of use is the same except that the adjustment rod is different, that is, in the initial state, the second wind shield 6 completely overlaps or partially overlaps with the first wind shield 5; when in use, the second wind shield 6 is adjusted to a set position (that is, the position of the rotary screen 1 that is just not covered by the cloth) through the adjustment rod, and then the cloth is dried; after use, the second wind shield 6 is adjusted to the initial position; therefore, it will not be repeated.

[0082] Embodiment 3:

[0083] This embodiment discloses a drying machine, comprising a circular screen with adjustable width as described in Embodiment 1 or Embodiment 2.

[0084] In this embodiment, in order to make the dryer adapt to the width after combing, and when the circular screen with adjustable width in the dryer is in operation, its main shaft 3 does not rotate, and only the circular screen 1 rotates. Therefore, the wind shield structure with adjustable width arranged inside the circular screen 1 (that is, the wind shield structure formed by the fixed wind shield 2, the first wind shield 5 and the second wind shield 6 used in conjunction with it, and the wind shield structure by the second wind shield 6 sliding to adjust the air outlet area of ​​the circular screen 1)) is fixed on the main shaft 3, and each time the width of the circular screen 1 is adjusted, the employee does not need to enter the dryer to adjust it (reducing the risk of possible personal injury), and only needs to open the adjustment hole 14 on the outer surface of the circular screen 1, and the width of the circular screen 1 can be adjusted by adjusting the adjustment rod arranged in conjunction with the adjustment hole 14. While effectively reducing energy consumption, it also saves time and effort, thereby greatly improving work efficiency.

[0085] like Fig.10 As shown, it is a schematic diagram of the internal structure of the dryer described in this embodiment, which is provided with four circular screens with adjustable width. It can be seen that the wind shield structure (formed by the fixed wind shield 2, the first wind shield 5 and the second wind shield 6 used in conjunction with the first wind shield 5) adjusts the air outlet area of ​​the circular screen 1 by sliding the second wind shield 6, thereby changing the width of the circular screen 1, so that the hot air can only be discharged from the running position of the cloth (i.e. the position of the circular screen 1 covering the cloth), thereby greatly improving the drying efficiency, effectively improving the energy utilization rate, reducing energy consumption, and playing a role in energy saving and emission reduction.

[0086] In addition, in this embodiment, a bearing seat 4 is arranged on the main shaft 3 outside the cylinder screen 1, and a sprocket wheel that can drive the cylinder screen 1 to rotate is arranged between the bearing seat 4 and the cylinder screen 1, and the cylinder screen 1 is axially rotated by driving the sprocket wheel, thereby further improving work efficiency.

[0087] The method of using the adjustable width cylinder screen in this embodiment is the same as that in Embodiment 1 or Embodiment 2, and will not be described again here.

[0088] It should be noted that in the present invention, the axes of the main shaft 3, the cylinder screen 1, the fixed wind shield 2, the first wind shield 5 and the second wind shield 6 are the same, that is, they are coaxially arranged.

[0089] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A rotary screen with adjustable width, characterized in that: The invention comprises a main shaft (3) and a cylinder (1) which are coaxially arranged, and a fixed windshield (2) and a first windshield (5) which are sleeved in the cylinder (1). The two sides of the cylinder (1) are rotatably connected to the main shaft (3) via bearings. The fixed windshield (2) and the first windshield (5) are both semi-cylindrical structures. The fixed windshield (2) is fixed to the main shaft (3) via a fixed bracket (8) arranged therein. The first windshield (5) is arranged at an axial end of the fixed windshield (2) and is connected to the fixed windshield (2) to form a circular ring structure. The fixed windshield (2) is also provided with a second windshield (6) which slides along its axial direction. The second windshield (6) cooperates with the first windshield (5) for use and forms a windshield structure in the cylinder (1) together with the fixed windshield (2) to adjust the air outlet area of ​​the cylinder (1) by sliding the second windshield (6).

2. The rotary screen with adjustable width according to claim 1, characterized in that: The second wind deflector (6) is axially slidably connected to the main shaft (3) via a second bracket (7) arranged therein.

3. The rotary screen with adjustable width according to claim 2, characterized in that: A sliding device is also provided between the main shaft (3) and the second bracket (7), the sliding device being an adjustment support (9) fixed on the main shaft, the adjustment support (9) being provided with a guide rail extending along the axial direction of the main shaft (3), the guide rail being sleeved with an adjustment slider (10), the second bracket (7) being fixed on the adjustment slider (10) and sliding therewith in the direction guided by the guide rail.

4. The rotary screen with adjustable width according to claim 3, characterized in that: An adjusting rod for controlling the sliding movement of the second wind deflector (6) and at least one fixed support (11) for supporting the adjusting rod are provided in the round net (1). The fixed support (11) is vertically arranged on the main shaft (3). One end of the fixed support (11) is fixedly connected to the main shaft, and the other end is provided with a through hole. One end of the adjusting rod passes through the through hole and is movably connected to the second bracket (7) or the adjusting slider (10), and the other end is provided with an adjusting handle (13). An adjusting hole (14) for use with the adjusting handle (13) is provided on the outer side surface of the round net (1).

5. The rotary screen with adjustable width according to claim 4, characterized in that: The adjusting rod is an adjusting screw rod (12), and the through hole is provided with an internal thread that matches the adjusting screw rod (12).

6. The rotary screen with adjustable width according to claim 1, characterized in that: A sealing strip for preventing air leakage is provided on the circumferential surface of the second wind shield (6) adjacent to the first wind shield (5).

7. A drying machine, characterized in that: The invention comprises a rotary screen with adjustable width as claimed in any one of claims 1 to 6.

8. A drying machine according to claim 7, characterized in that: A bearing seat (4) is provided on the main shaft (3) close to the outer side of the cylinder (1), and a sprocket wheel capable of driving the cylinder (1) to rotate axially is provided between the bearing seat (4) and the cylinder (1).

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