Up-down sliding door structure of dryer

Abstract

The utility model discloses an up-down sliding door structure of a dryer, which comprises an upper sliding door and a lower sliding door which are arranged at the position of a dryer door opening in the front side of the dryer according to the up-down position, and symmetrical sliding rails are arranged on the two sides of the dryer door opening along the up-down direction; the two sides of the upper sliding door and the two sides of the lower sliding door are each fixedly provided with two sets of limiting bearings according to the upper position and the lower position, and the limiting bearings are used for limiting the upper sliding door in the transverse direction and the longitudinal direction when the upper sliding door and the lower sliding door move up and down along the sliding rails. Connecting lug air cylinders are fixed to the two sides of the upper sliding door, cylinder bodies of the air cylinders are fixedly connected with a fixing support of the drying machine, and the front ends of telescopic rods are fixedly connected with connecting lugs. The two sides of the lower sliding door are connected with lugs and corresponding air cylinders. The two air cylinders are arranged to drive the upper door and the lower door respectively, the limiting bearing is combined, automatic control over the drying machine door is achieved, the requirement for integrated automatic operation is met, and meanwhile the drying machine door has the advantages of being simple in structure, easy to achieve and the like.

Description

Technical Field

[0001] This utility model belongs to the field of dryer technology, specifically relating to a sliding door structure for a dryer. Background Technology

[0002] Currently, most conventional industrial dryers use hinged, left-right rotating doors. This traditional rotating door technology is mature and easy to operate, hence its widespread use in dryers. However, its drawbacks are that this type of door is usually operated manually and requires a certain amount of operating space, which is not conducive to automatic loading and unloading during integrated automated operation of the dryer. Therefore, there is an urgent need to invent a new type of automatic dryer door to meet the needs of automated operation. Utility Model Content

[0003] The purpose of this invention is to address the inconvenience of operation of existing dryer doors by providing a dryer sliding door structure that enables automatic operation.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A sliding door structure for a dryer includes an upper sliding door and a lower sliding door positioned vertically at the door opening on the front side of the dryer, wherein:

[0006] Symmetrical slide rails are provided on both sides of the door opening of the dryer along the vertical direction;

[0007] Both sides of the upper and lower sliding doors are fixed with two sets of limiting bearings at the upper and lower positions respectively. Each set of limiting bearings includes a horizontal limiting bearing and a vertical limiting bearing, and is movably connected to the slide rail by means of the horizontal and vertical limiting bearings, so that the upper sliding door can move up and down along the slide rail by means of the limiting bearings, and is limited in both the horizontal and vertical directions by the horizontal and vertical limiting bearings.

[0008] The upper sliding door is fixed with symmetrical first connecting ears and second connecting ears on both sides. A first cylinder is provided on one side of the dryer door opening corresponding to the position of the first connecting ear. The cylinder body of the first cylinder is connected and fixed to the fixed bracket of the dryer, and the front end of the telescopic rod is connected and fixed to the first connecting ear.

[0009] The sliding door is fixed with symmetrical third and fourth connecting ears on both sides. A second cylinder is provided on one side of the dryer door opening corresponding to the position of the third connecting ear. The cylinder body of the second cylinder is connected and fixed to the fixed bracket of the dryer, and the front end of the telescopic rod is connected and fixed to the third connecting ear.

[0010] According to this utility model, the slide rail is preferably a groove shape with a slightly constricted open end, so as to facilitate the installation and positioning of the limit bearing.

[0011] According to this utility model, the third connecting ear is on the same side as the first connecting ear of the upper sliding door, and the fourth connecting ear is on the same side as the second connecting ear of the upper sliding door.

[0012] According to a preferred embodiment of the present invention, the upper sliding door is further equipped with a first synchronous pull rope and a second synchronous pull rope, and the lower sliding door is further equipped with a third synchronous pull rope and a fourth synchronous pull rope; the top and bottom left and right sides of the front side of the dryer are respectively provided with a first pulley group, a second pulley group, a third pulley group, and a fourth pulley group, and the right side is further provided with a fifth pulley group and a sixth pulley group in an up-down position; wherein:

[0013] One end of the first synchronous pull rope is connected and fixed to the first connecting ear, and the other end passes in sequence around the first pulley group on the left side of the top of the dryer, the second pulley group on the right side of the top of the dryer, the fifth pulley group on the right side of the dryer, and finally connects and is fixed to the second connecting ear of the upper sliding door;

[0014] One end of the second synchronous pull rope is connected and fixed to the first connecting ear, and the other end passes in sequence around the third pulley group on the left side of the bottom of the dryer, the fourth pulley group on the right side of the bottom of the dryer, the second pulley group on the right side of the top of the dryer, and finally connects and is fixed to the second connecting ear of the upper sliding door.

[0015] One end of the third synchronous pull rope is connected and fixed to the third connecting ear of the sliding door, and the other end passes in sequence around the first pulley group on the left side of the top of the dryer, the second pulley group on the right side of the top of the dryer, the sixth pulley group on the right side of the dryer, and finally connects and is fixed to the fourth connecting ear of the sliding door.

[0016] One end of the fourth synchronous pull rope is connected and fixed to the third connecting ear of the sliding door, and the other end passes sequentially around the third pulley group on the left side of the bottom of the dryer, the fourth pulley group on the right side of the bottom of the dryer, and the second pulley group on the right side of the top of the dryer, and finally connects and is fixed to the fourth connecting ear of the sliding door.

[0017] Furthermore, each of the aforementioned connecting ears is provided with two pull rope holes at the top and bottom positions for the corresponding synchronous pull ropes to be threaded and fixed.

[0018] Preferably, the outer side of the two pull rope holes is also provided with 1 to 2 fixing holes, which can be used to connect and fix with the front end of the piston rod of the cylinder.

[0019] According to this utility model, the area of ​​the upper sliding door is larger than the area of ​​the lower sliding door. Preferably, the upper sliding door covers 70% of the doorway area, and the lower sliding door covers 30% of the doorway area.

[0020] This utility model has the following beneficial effects:

[0021] 1. This utility model achieves automatic control of the dryer door by setting two cylinders to drive the upper and lower sliding doors respectively, and combining them with limit bearings, thus meeting the needs of integrated automated operation. It also has the advantages of simple structure and easy implementation.

[0022] 2. The structure of the synchronous pull rope and pulley system can ensure that the sliding door moves synchronously left and right during the movement, thereby avoiding tilting or jamming. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the upper and lower sliding door structure of the dryer of this utility model. In the figure, both the upper and lower sliding doors are in the closed position.

[0024] Figure 2 This is a schematic diagram showing the upper sliding door of the dryer of this utility model in the open state.

[0025] Figure 3 This is a schematic diagram showing that both the upper and lower sliding doors of the dryer of this utility model are in the open state.

[0026] Figure 4 This is a schematic diagram of the first connecting ear.

[0027] In the picture:

[0028] 2- Lateral limit bearing; 3- Longitudinal limit bearing; 10- Upper sliding door; 11- First connecting ear; 12- Second connecting ear; 13- First cylinder; 14- First synchronous pull rope; 15- Second synchronous pull rope; 20- Lower sliding door; 21- Third connecting ear; 22- Fourth connecting ear; 23- Second cylinder; 24- Third synchronous pull rope; 25- Fourth synchronous pull rope; 30- Track; 40- Dryer door opening; 41- First pull rope pulley group; 42- Second pull rope pulley group; 43- Third pull rope pulley group; 44- Fourth pull rope pulley group; 45- Fifth pull rope pulley group; 46- Sixth pulley group; 111- Upper pull rope through hole; 112- Lower pull rope through hole; 113- Fixing hole. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the following embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0030] Unless otherwise specified, the fixing methods described in the following embodiments all adopt existing technologies, such as fixing with fasteners, such as screws, or fixing by welding.

[0031] like Figure 1As shown, the upper and lower sliding door structure of the dryer of this utility model includes a dryer door opening 40 arranged in an upper and lower position on the front side of the dryer. Figure 2 The upper sliding door 10 and the lower sliding door 20 at point ) are:

[0032] Symmetrical slide rails 30 are provided on both sides of the doorway 40 at the front of the dryer along the vertical direction.

[0033] Two sets of limiting bearings are fixed on both sides of the upper sliding door 10 at the vertical position. Each set of limiting bearings includes a horizontal limiting bearing 2 and a vertical limiting bearing 3. The upper sliding door 10 is movably connected to the slide rail 30 by means of the horizontal limiting bearing 2 and the vertical limiting bearing 3, so that the upper sliding door 10 can move up and down along the slide rail 30 by means of the limiting bearings, and is limited in both the horizontal and vertical directions by the horizontal limiting bearing 2 and the vertical limiting bearing 3, preventing it from sliding off the slide rail 30.

[0034] The lower sliding door 20 also has two sets of limit bearings fixed on both sides at the upper and lower positions, and the limit bearings are set in the same way as the limit bearings of the upper sliding door 10.

[0035] In this embodiment, the limiting bearing is a conventional product known in the art, and a suitable style can be selected according to actual needs. Preferably, the slide rail 30 is a groove shape with a slightly constricted open end to facilitate the installation and positioning of the limiting bearing.

[0036] The upper sliding door 10 is also fixed with symmetrical first connecting ears 11 and second connecting ears 12 on both sides. A first cylinder 13 is provided on one side of the dryer door opening 40 corresponding to the position of the first connecting ear 11. The cylinder body of the first cylinder 13 is connected and fixed to the fixed bracket of the dryer (not shown in the figure). The front end of the telescopic rod of the first cylinder body 13 is connected and fixed to the first connecting ear 11, so that the extension and retraction of the first cylinder 13 can drive the first connecting ear 11 to move up and down, thereby driving the upper sliding door 10 to move up and down along the slide rail 30.

[0037] The lower sliding door 20 is fixed with symmetrical third connecting ears 21 and fourth connecting ears 22 on both sides. Preferably, the third connecting ear 21 is on the same side as the first connecting ear 11 of the upper sliding door 10, and the fourth connecting ear 22 is on the same side as the second connecting ear 12 of the upper sliding door 10. A second cylinder 23 is provided on one side of the dryer door opening 40 corresponding to the position of the third connecting ear 21. The cylinder body of the second cylinder 23 is connected and fixed to the fixed bracket of the dryer, and the front end of the telescopic rod is connected and fixed to the third connecting ear 21, so that the extension and retraction of the second cylinder 23 can drive the third connecting ear 21 to move up and down, thereby driving the lower sliding door 20 to move up and down along the slide rail 30.

[0038] The upper sliding door 10 is also equipped with a first synchronous pull rope 14 and a second synchronous pull rope 15, and the lower sliding door 20 is also equipped with a third synchronous pull rope 24 and a fourth synchronous pull rope 25; the top and bottom left and right sides of the front side of the dryer are respectively equipped with a first pulley group 41, a second pulley group 42, a third pulley group 43 and a fourth pulley group 44, and the right side is also equipped with a fifth pulley group 45 and a sixth pulley group 46 in an up-down position; wherein:

[0039] One end of the first synchronous pull rope 14 is connected and fixed to the first connecting ear 11, and the other end passes in sequence around the first pulley group 41 on the left side of the top of the dryer, the second pulley group 42 on the right side of the top of the dryer, the fifth pulley group 45 on the right side of the dryer, and finally connects and is fixed to the second connecting ear 12 of the upper sliding door 10.

[0040] One end of the second synchronous pull rope 15 is connected and fixed to the first connecting ear 11, and the other end passes in sequence around the third pulley group 43 on the left side of the bottom of the dryer, the fourth pulley group 44 on the right side of the bottom of the dryer, the second pulley group 42 on the right side of the top of the dryer, and finally connects and fixes to the second connecting ear 12 of the upper sliding door 10.

[0041] One end of the third synchronous pull rope 24 is connected and fixed to the third connecting ear 21 of the lower sliding door 20, and the other end passes in sequence around the first pulley group 41 on the left side of the top of the dryer, the second pulley group 42 on the right side of the top of the dryer, the sixth pulley group 46 on the right side of the dryer, and finally connects and fixed to the fourth connecting ear 22 of the lower sliding door 20.

[0042] One end of the fourth synchronous pull rope 25 is connected and fixed to the third connecting ear 21 of the lower sliding door 20, and the other end passes in sequence around the third pulley group 43 on the left side of the bottom of the dryer, the fourth pulley group 44 on the right side of the bottom of the dryer, and the second pulley group 42 on the right side of the top of the dryer, and finally connects and fixes to the fourth connecting ear 22 of the lower sliding door 20.

[0043] According to the above configuration, when the first cylinder 13 extends, the movement of its piston rod drives the upper sliding door 10 to move upward along the slide rail 30 via the first connecting lug 11. Simultaneously, the second synchronous pull rope 15 is pulled upward by the first connecting lug 11, and through the third pulley group 43, the fourth pulley group 44, and the second pulley group 42, pulls the second connecting lug 12 upward, thereby opening the upper sliding door 10. When the second cylinder 13 retracts, the movement of its piston rod drives the upper sliding door 10 to move downward along the slide rail 30 via the first connecting lug 11. Simultaneously, the first synchronous pull rope 14 is pulled downward by the first connecting lug 11, and through the first pulley group 41, the second pulley group 42, and the fifth pulley group 45, pulls the second connecting lug 12 downward, thereby closing the upper sliding door 10. This configuration ensures that the left and right ends of the upper sliding door 10 move upward or downward synchronously, preventing tilting or jamming.

[0044] The synchronous movement principle of the lower sliding door 20 is the same as that of the upper sliding door 10. Specifically, when the second cylinder 23 retracts, the movement of its piston rod drives the lower sliding door 20 downward along the slide rail 30 via the third connecting lug 21. At the same time, the fourth synchronous pull rope 25 is pulled downward by the third connecting lug 21, and through the first pulley group 41, the second pulley group 42, and the sixth pulley group 46, pulls the fourth connecting lug 22 downward, thereby opening the lower sliding door 20. When the second cylinder 23 extends, the movement of its piston rod drives the lower sliding door 20 upward along the slide rail 30 via the third connecting lug 21. At the same time, the third synchronous pull rope 24 pulls the fourth connecting lug 22 upward via the third pulley group 43, the fourth pulley group 44, and the second pulley group 42, thereby closing the upper sliding door 20. Similarly, the above arrangement ensures that the left and right ends of the upper sliding door 20 move upward or downward synchronously, avoiding tilting or jamming.

[0045] Furthermore, each connecting ear has two pull cord holes positioned vertically. Taking the first connecting ear 11 as an example, as follows... Figure 4 As shown, the first connecting ear 11 has an upper pull rope through hole 111 and a lower pull rope through hole 112 arranged vertically. The upper pull rope through hole 111 is used to pass through and fix one end of the first synchronous pull rope 14, and the lower pull rope through hole 112 is used to pass through and fix one end of the second synchronous pull rope 15. The passing through and fixing can be done in a way known in the art, such as folding back one end of the pull rope after passing through the through hole and clamping the two pull ropes together with a clamp. Preferably, the outer side of the upper pull rope through hole 111 and the lower pull rope through hole 112 of the first connecting ear 11 is also provided with 1 to 2 fixing holes 113, which can be used to fix the first cylinder 13 to the front end of the piston rod by means of fasteners such as bolts or pins.

[0046] In this embodiment, preferably, the area of ​​the upper sliding door 10 is larger than the area of ​​the lower sliding door 20, and the upper sliding door 10 can cover 70% of the area of ​​the doorway 40, while the lower sliding door 20 can cover 30% of the area of ​​the dryer doorway 40.

[0047] The working principle of the upper and lower sliding door structure of the dryer of this utility model is as follows:

[0048] When loading is required, such as Figure 2 As shown, the first cylinder 13 of the upper sliding door 10 extends, pushing the upper sliding door 10 to move upward along the slide rail 30, opening the upper sliding door 10 and providing sufficient loading space for the linen cart; at this time, the second cylinder 23 of the lower sliding door 20 is in the extended state, corresponding to the lower sliding door 20 remaining closed, preventing the linen from falling during the loading process.

[0049] After loading is completed, the first cylinder 13 of the upper sliding door 10 retracts, causing the upper sliding door 10 to move downwards along the slide rail 30, thereby closing the upper sliding door 10. At this time, both the upper sliding door 10 and the lower sliding door 20 are in the closed state. Figure 1 As shown, drying operations can be performed.

[0050] When the drying process is complete and unloading is required, such as Figure 3 As shown, the first cylinder 13 of the upper sliding door 10 extends and pushes the upper sliding door 10 to move upward along the slide rail 30, opening the upper sliding door 10; at the same time, the second cylinder 23 of the lower sliding door 20 retracts, driving the lower sliding door 20 to move downward, opening the lower sliding door 20 as well, so that the inside of the dryer is connected to the external passage, and the linen cart can smoothly approach and complete the unloading operation.

[0051] This invention achieves automatic control of the dryer door by using a cylinder to drive the sliding door up and down, combined with a limit bearing, synchronous pull rope, and pulley system, thus meeting the needs of integrated automated operation. It also has the advantages of simple structure and ease of implementation.

[0052] Although the present invention has been described in detail above through preferred embodiments, the above embodiments are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. A structure of an up-and-down moving door of a dryer, characterized in that, The dryer door hole (40) is provided with a upper moving door (10) and a lower moving door (20) on the front side of the dryer. The two sides of the dryer door hole (40) are provided with symmetrical slide rails (30) in the up-down direction. The two sides of the upper moving door (10) and the lower moving door (20) are respectively fixed with two sets of limit bearings in the up-down position, each set of limit bearings includes a transverse limit bearing (2) and a longitudinal limit bearing (3), and is movably connected with the slide rail (30) through the transverse limit bearing (2) and the longitudinal limit bearing (3), so that the upper moving door (10) can move up and down along the slide rail (30) through the limit bearings, and is limited in the transverse and longitudinal directions by the transverse limit bearing (2) and the longitudinal limit bearing (3). The two sides of the upper moving door (10) are fixed with symmetrical first connecting ears (11) and second connecting ears (12), and the side of the dryer door hole (40) corresponding to the position of the first connecting ear (11) is provided with a first air cylinder (13), the cylinder body of the first air cylinder (13) is connected and fixed with the fixed support of the dryer, and the front end of the telescopic rod is connected and fixed with the first connecting ear (11). The two sides of the lower moving door (20) are fixed with symmetrical third connecting ears (21) and fourth connecting ears (22), and the side of the dryer door hole (40) corresponding to the position of the third connecting ear (21) is provided with a second air cylinder (23), the cylinder body of the second air cylinder (23) is connected and fixed with the fixed support of the dryer, and the front end of the telescopic rod is connected and fixed with the third connecting ear (21).

2. The up-and-down moving door structure of a dryer according to claim 1, characterized in that, The slide rail (30) is a groove shape with slightly tightened opening end.

3. The up-and-down moving door structure of a dryer according to claim 1, wherein, The third connecting ear (21) is on the same side as the first connecting ear (11) of the upper moving door (10), and the fourth connecting ear (22) is on the same side as the second connecting ear (12) of the upper moving door (10).

4. The up-and-down moving door structure of the dryer according to claim 3, characterized in that, The upper moving door (10) is further provided with a first synchronous pull rope (14) and a second synchronous pull rope (15), and the lower moving door (20) is further provided with a third synchronous pull rope (24) and a fourth synchronous pull rope (25); the left and right sides of the top and bottom of the front side of the dryer are respectively provided with a first pulley group (41), a second pulley group (42), a third pulley group (43) and a fourth pulley group (44), and the right side is further provided with a fifth pulley group (45) and a sixth pulley group (46) in the up-down position; wherein: One end of the first synchronous pull rope (14) is connected and fixed with the first connecting ear (11), and the other end is sequentially wound around the first pulley group (41) on the left side of the top of the dryer, the second pulley group (42) on the right side of the top of the dryer, the fifth pulley group (45) on the right side of the dryer, and finally connected and fixed with the second connecting ear (12) of the upper moving door (10); One end of the second synchronous pull rope (15) is connected and fixed with the first connecting lug (11), and the other end is sequentially wound around the third pulley set (43) at the left bottom of the dryer, the fourth pulley set (44) at the right bottom of the dryer, the second pulley set (42) at the right top of the dryer, and finally connected and fixed with the second connecting lug (12) of the up-moving door (10); One end of the third synchronous pull rope (24) is connected and fixed with the third connecting lug (21) of the down-moving door (20), and the other end is sequentially wound around the first pulley set (41) at the left top of the dryer, the second pulley set (42) at the right top of the dryer, the sixth pulley set (46) at the right of the dryer, and finally connected and fixed with the fourth connecting lug (22) of the down-moving door (20). One end of the fourth synchronous pull rope (25) is connected and fixed with the third connecting lug (21) of the down-moving door (20), and the other end is sequentially wound around the third pulley set (43) at the left bottom of the dryer, the fourth pulley set (44) at the right bottom of the dryer, the second pulley set (42) at the right top of the dryer, and finally connected and fixed with the fourth connecting lug (22) of the down-moving door (20).

5. The up-and-down moving door structure of a dryer according to claim 1, wherein Two pull rope through holes are arranged on each connecting lug in up-down positions for corresponding synchronous pull rope threading and fixing.

6. The up-and-down moving door structure of the dryer according to claim 5, characterized in that, 1-2 fixing holes are further arranged outside the two pull rope through holes.

7. The up-and-down moving door structure of a dryer according to claim 1, wherein The area of the up-moving door (10) is greater than that of the down-moving door (20).

8. The up-and-down moving door structure of the dryer according to claim 7, characterized in that, The up-moving door (10) covers 70% of the area of the door hole (40), and the down-moving door (20) covers 30% of the area of the dryer door hole (40).

Images