A trough type drying and ironing machine

Abstract

The invention discloses a trough type drying and ironing machine, comprising: an air suction drum, an upper steam chamber, a lower steam chamber, and a linen conveying device; a synchronous lifting device is arranged at the bottom of the lower steam chamber; the structure of the upper steam chamber comprises: a semicircular shell with a closed semicircular inner cavity, at least one water outlet is opened on the front end surface of the semicircular shell, and at least one steam inlet is opened on the rear end surface of the semicircular shell; a plurality of baffles are fixedly arranged in sequence from front to back in the closed semicircular inner cavity, and each baffle divides the closed semicircular inner cavity into a plurality of independent closed chambers; at least one through hole group is opened on each baffle, and each through hole group is composed of at least three through holes which are arranged in sequence at intervals and connected front to back, and each through hole group on two adjacent baffles is staggered in left and right arrangement; the above structure has the advantages of high heat transfer efficiency between high temperature steam passing through the upper steam chamber and linen, and the lower steam chamber can rise steadily.

Description

Technical Field

[0001] The invention relates to drying and ironing equipment for bed sheets, quilt covers and other linens, in particular to a trough type drying and ironing machine. Background Art

[0002] The trough type drying and ironing machine is mainly used in hotels, sanatoriums, hospitals, schools and other places to dry and iron the sheets, quilt covers and other linens after washing and dehydration. The Chinese invention patent application with patent number 012448745 discloses a trough type drying and ironing machine, which includes: a suction drum, an upper steam chamber located above the suction drum, a lower steam chamber located below the suction drum, and a linen conveying device that allows the linens to be dried and ironed in sequence through the inner surface of the lower steam chamber, the inner surface of the upper steam chamber, and the outer surface of the upper steam chamber. The upper steam chamber and the lower steam chamber are driven to rise or fall by a pair of oil cylinders respectively: before the trough type drying and ironing machine works normally, the upper steam chamber is driven by the corresponding pair of oil cylinders to move downward and approach the upper half of the suction drum to a set position, and similarly, the lower steam chamber is driven by the corresponding pair of oil cylinders to move upward and approach the lower half of the suction drum to a set position; and then the normal linen drying and ironing operation is carried out. When it is necessary to repair or clean the suction roller and other parts, the upper steam chamber moves upward and away from the upper part of the suction roller under the drive of the corresponding pair of oil cylinders. Similarly, the lower steam chamber moves downward and away from the lower part of the suction roller under the drive of the corresponding pair of oil cylinders, so that the suction roller and other parts can be repaired and cleaned.

[0003] However, the above-mentioned trough type drying and ironing machine has the following main defects:

[0004] ① When the lower steam chamber moves upward under the drive of a pair of oil cylinders, it is easy for the lower steam chamber to deflect to one side during the upward movement due to the gravity of the lower steam chamber itself and the inability of the two oil cylinders to achieve complete synchronization. This causes the lower steam chamber to be unable to rise smoothly, resulting in poor uniformity in drying and ironing of the linens passing through the inner surface of the lower steam chamber, and a short service life of the matching parts;

[0005] ② The inner surface of the lower steam chamber carries out the first drying and ironing operation on the linens, the upper surface of the steam chamber carries out the second drying and ironing operation on the linens, and the outer surface of the steam chamber carries out the third drying and ironing operation on the linens. Therefore, the heat transfer efficiency between the high-temperature steam passing through the upper steam chamber and the linens has a greater influence on the drying and ironing effect. How to improve the heat transfer efficiency between the high-temperature steam passing through the upper steam chamber and the linens has always been an unresolved problem. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a trough type drying and ironing machine in which the heat transfer efficiency between the high temperature steam passing through the upper steam chamber and the linens is high and the lower steam chamber can rise smoothly.

[0007] In order to solve the above problems, the technical solution adopted by the present invention is as follows: the trough type drying and ironing machine comprises: a suction drum placed horizontally in front and back, an upper steam chamber located above the suction drum, a lower steam chamber located below the suction drum, and a linen conveying device for drying and ironing the linens sequentially through the inner surface of the lower steam chamber, the inner surface of the upper steam chamber, and the outer surface of the upper steam chamber; the upper steam chamber is driven to rise or fall by a pair of upper oil cylinders arranged on the frame, so that the upper steam chamber is away from or close to the upper half of the suction drum, and the lower steam chamber is driven to rise or fall by a pair of lower oil cylinders arranged on the frame, so that the lower steam chamber is close to or away from the lower half of the suction drum; a synchronous lifting device is arranged at the bottom of the lower steam chamber to make the lower steam chamber rise steadily; the structure of the upper steam chamber comprises: A semicircular shell with a closed semicircular inner cavity, the bottom outer surface contour of the semicircular shell corresponds to the outer surface contour of the suction drum; at least one water outlet connected to the closed semicircular inner cavity is provided on the front end surface of the semicircular shell, and at least one steam inlet connected to the closed semicircular inner cavity is provided on the rear end surface of the semicircular shell; a plurality of baffles are fixedly arranged in sequence from front to back in the closed semicircular inner cavity, and each baffle divides the closed semicircular inner cavity into a plurality of independent closed chambers; at least one group of through holes is provided on each baffle, and each group of through holes is composed of at least three through holes that are arranged in sequence from left to right and pass through front to back, and the through hole groups on two adjacent baffles are staggered left to right.

[0008] Furthermore, in the aforementioned trough drying and ironing machine, a plurality of baffles are evenly spaced and fixedly arranged in sequence from front to back in the closed semicircular inner cavity, and each baffle is parallel to the front end surface of the semicircular shell, dividing the closed semicircular inner cavity into a plurality of equally divided independent closed chambers.

[0009] Furthermore, in the aforementioned trough-type drying and ironing machine, the axis of each through hole in each through hole group is parallel to the axis of the semicircular ring-shaped shell.

[0010] Furthermore, in the aforementioned trough type drying and ironing machine, two water outlets are provided on the front end surface of the semicircular ring-shaped shell, and the two water outlets are respectively distributed on the left and right sides of the axis of the semicircular ring-shaped shell.

[0011] Furthermore, in the aforementioned trough type drying and ironing machine, two steam inlets are provided on the rear end surface of the semicircular ring-shaped shell, and the two steam inlets are respectively distributed on the left and right sides of the axis of the semicircular ring-shaped shell.

[0012] Furthermore, in the aforementioned trough drying and ironing machine, the structure of the synchronous lifting device is as follows: the connecting shaft is arranged on the frame below the lower steam chamber through front and rear horizontal supports of the bearing seat, and a pair of synchronous lifting mechanisms are arranged on the connecting shaft, each synchronous lifting mechanism includes: a first connecting plate, a second connecting plate and a connecting rod, the bottom of the first connecting plate is fixedly connected to the connecting shaft, the bottom of the second connecting plate is hinged to the top of the first connecting plate, the bottom of the connecting rod is fixed to the top of the second connecting plate, and the top of the connecting rod is hinged to the connecting seat at the bottom of the lower steam chamber.

[0013] Furthermore, in the aforementioned trough drying and ironing machine, the connecting rod is composed of a first connecting rod, a second connecting rod and a connecting sleeve, a first external thread section is provided on the upper section of the first connecting rod, a second external thread section is provided on the lower section of the second connecting rod, a first internal thread section matching with the first external thread section is provided on the inner side wall of the lower section of the connecting sleeve, a second internal thread section matching with the second external thread section is provided on the inner side wall of the upper section of the connecting sleeve, the first connecting rod and the second connecting rod are threadedly connected by the connecting sleeve, and when the connecting sleeve rotates, the first connecting rod and the second connecting rod can be extended to both ends at the same time or retracted to the middle at the same time.

[0014] The beneficial effects of the present invention are as follows: the design of the specific structure of the upper steam chamber can not only make the upper steam chamber have uniform air intake and exhaust, but also greatly improve the heat transfer efficiency between the high-temperature steam and the linens passing through the upper steam chamber, and improve the heating speed; in addition, by adding a synchronous lifting device, the lower steam chamber can rise smoothly without deflecting to one side during the rising process, thereby improving the service life of each matching component. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a trough type drying and ironing machine described in the present invention.

[0016] Figure 2 It is a transmission schematic diagram of the linen conveying device.

[0017] Figure 3 yes Figure 2 Schematic diagram of the structure of the synchronous lifting device.

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the synchronous lifting device.

[0019] Figure 5 It is a structural diagram of a synchronous lifting structure.

[0020] Figure 6 yes Figure 1 Schematic diagram of the specific structure of the middle and upper steam compartment.

[0021] Figure 7 yes Figure 6 Schematic diagram of the internal structure from a top-down view. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0023] See 1 and Figure 2 As shown, the trough drying and ironing machine includes: a suction drum 1 placed horizontally in front and back, an upper steam chamber 2 located above the suction drum 1, a lower steam chamber 3 located below the suction drum 1, and a linen conveying device that allows the linens to be dried and ironed in sequence through the inner surface of the lower steam chamber 3, the inner surface of the upper steam chamber 2, and the outer surface of the upper steam chamber 2; the upper steam chamber 2 is driven to rise or fall by a pair of upper oil cylinders 4 arranged on the frame, so that the upper steam chamber 2 is away from or close to the upper half of the suction drum 1, and the lower steam chamber 3 is driven to rise or fall by a pair of lower oil cylinders 5 arranged on the frame, so that the lower steam chamber 3 is close to or away from the lower half of the suction drum 1. Among them, the position arrangement of the suction drum 1, the upper steam chamber 2, the lower steam chamber 3, the pair of upper oil cylinders 4, the pair of lower oil cylinders 5, and the conveying method of the linen conveying device are the same as those of the suction drum 1, the upper steam chamber 2, the lower steam chamber 3, the pair of upper oil cylinders 4, the pair of lower oil cylinders 5, and the conveying method of the linen conveying device in the Chinese invention patent application No. 012448745. Before the trough type drying and ironing machine works normally, the upper steam chamber 2 is driven by the pair of upper oil cylinders 4 to move downward and approach the upper half of the suction drum 1 to a set position. Similarly, the lower steam chamber 3 is driven by the pair of lower oil cylinders 5 to move upward and approach the lower half of the suction drum 1 to a set position, and then the normal linen drying and ironing operation is carried out. When it is necessary to repair or clean the suction roller 1 and other components, the upper steam chamber 2 moves upward and away from the upper half of the suction roller 1 under the drive of a pair of upper oil cylinders 4. Similarly, the lower steam chamber 3 moves downward and away from the lower half of the suction roller 1 under the drive of a pair of lower oil cylinders 5, so that the suction roller 1 and other components can be repaired and cleaned.

[0024] The trough type drying and ironing machine described in the present invention is a creative improvement on the technical solution in the Chinese invention patent application with patent number 012448745. It not only enables the upper steam chamber 2 to evenly inlet and outlet air, improves the heat transfer efficiency between the high-temperature steam passing through the upper steam chamber 2 and the linens, and improves the heating speed, but also enables the lower steam chamber 3 to rise smoothly without deflecting to one side during the rising process, thereby improving the service life of each matching component.

[0025] like Figure 2 , Figure 3 and Figure 4As shown, a trough type drying and ironing machine described in the present invention is provided with a synchronous lifting device 6 at the bottom of the lower steam chamber 3 to make the lower steam chamber 3 rise smoothly. The structure of the synchronous lifting device 6 is as follows: a connecting shaft 61 is arranged on the frame below the lower steam chamber 3 through a bearing seat 62 for horizontal front and rear support, and a pair of synchronous lifting mechanisms are arranged on the connecting shaft 61, each synchronous lifting mechanism includes: a first connecting plate 71, a second connecting plate 72 and a connecting rod 73, the bottom of the first connecting plate 71 is fixedly connected to the connecting shaft 61, the bottom of the second connecting plate 72 is hinged to the top of the first connecting plate 71, the bottom of the connecting rod 73 is fixed to the top of the second connecting plate 72, and the top of the connecting rod 73 is hinged to the connecting seat 31 at the bottom of the lower steam chamber 3.

[0026] When a pair of lower oil cylinders 5 drive the lower steam chamber 3 to rise, the connecting rod 73 in each synchronous lifting mechanism is pulled upward by the lower steam chamber 3, so that the first connecting plate 71 rotates clockwise relative to the axis of the connecting shaft 61. At this time, the connecting shaft 61 fixedly connected to the first connecting plate 71 also rotates clockwise relative to the axis of the connecting shaft 61, thereby achieving the purpose of synchronous lifting.

[0027] Due to the influence of installation factors, processing factors, etc., there may be a small error between the two synchronous lifting mechanisms, which affects the synchronization effect. In order to eliminate the error, the present embodiment improves the connecting rod 73: Figure 5 As shown, the connecting rod 73 is composed of a first connecting rod 731, a second connecting rod 732 and a connecting sleeve 733. A first external thread section is provided on the upper section of the first connecting rod 731, a second external thread section is provided on the lower section of the second connecting rod 732, a first internal thread section matching the first external thread section is provided on the inner side wall of the lower section of the connecting sleeve 733, a second internal thread section matching the second external thread section is provided on the inner side wall of the upper section of the connecting sleeve 733, and the first connecting rod 731 and the second connecting rod 732 are threadedly connected through the connecting sleeve 733: the first connecting rod 731 is screwed into the connecting sleeve 733 from the bottom of the connecting sleeve 733, and the second connecting rod 732 is screwed into the connecting sleeve 733 from the top of the connecting sleeve 733. When the connecting sleeve 733 rotates, the first connecting rod 731 and the second connecting rod 732 can be extended to both ends or retracted to the middle at the same time. Assuming that the clockwise rotation of the connecting sleeve 733 can make the first connecting rod 731 and the second connecting rod 732 extend to both ends at the same time, when the connecting sleeve 733 rotates counterclockwise, the first connecting rod 731 and the second connecting rod 732 retract to the middle at the same time, thereby achieving fine adjustment of the length of the connecting rod 73 to eliminate the small error between the two synchronous lifting mechanisms.

[0028] At least one small hole 74 penetrating the inner wall of the connecting sleeve 733 may be provided on the middle side wall of the connecting sleeve 733, and lubricating oil may be added to the threaded transmission through each small hole 74 to ensure the flexibility of the threaded transmission.

[0029] like Figure 6 and Figure 7 As shown, the structure of the steam chamber 2 described in this embodiment includes: a semicircular shell 21 with a closed semicircular inner cavity 22, and the bottom outer surface contour of the semicircular shell 21 corresponds to the outer surface contour of the suction drum 1. At least one water outlet 231 connected to the closed semicircular inner cavity 22 is opened on the front end face 23 of the semicircular shell 21, and at least one steam inlet 241 connected to the closed semicircular inner cavity 22 is opened on the rear end face 24 of the semicircular shell 21. A plurality of baffles 25 are fixedly arranged in sequence from front to back in the closed semicircular inner cavity 22, and each baffle 25 divides the closed semicircular inner cavity 22 into a plurality of independent closed chambers. At least one through hole group 251 is opened on each baffle 25, and each through hole group 251 is composed of at least three through holes 252 arranged in sequence and connected from front to back, and each through hole group 251 on two adjacent baffles 25 is staggered left and right.

[0030] The baffles 25 are preferably arranged in a specific manner: a plurality of baffles 25 are evenly spaced and fixedly arranged in the closed semicircular ring-shaped inner cavity 22 from front to back, and each baffle 25 is parallel to the front end surface 23 of the semicircular ring-shaped shell 21, so as to divide the closed semicircular ring-shaped inner cavity 22 into a plurality of independent closed chambers of equal parts. The axis of each through hole 252 in each through hole group 251 is parallel to the axis of the semicircular ring-shaped shell 21.

[0031] The arrangement of the water outlet 231 and the steam inlet 241 is preferably as follows: two water outlets 231 are provided on the front end surface 23 of the semicircular shell 21, and the two water outlets 231 are respectively distributed on the left and right sides of the axis of the semicircular shell 21. Two steam inlets 241 are provided on the rear end surface 24 of the semicircular shell 21, and the two steam inlets 241 are respectively distributed on the left and right sides of the axis of the semicircular shell 21.

[0032] The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any modification or equivalent change made based on the technical essence of the present invention still falls within the scope of protection required by the present invention.

[0033] The advantages of the present invention are: the design of the specific structure of the upper steam chamber 2 can not only make the upper steam chamber 2 have uniform air intake and uniform air exhaust, but also greatly improve the heat transfer efficiency between the high-temperature steam and the linens passing through the upper steam chamber 2 and improve the heating speed; in addition, by adding a synchronous lifting device 6, the lower steam chamber 3 can rise smoothly without deflecting to one side during the rising process, thereby improving the service life of each matching component.

Claims

1. A trough type drying and ironing machine, comprising: Suction rollers placed horizontally in front and back, an upper steam chamber located above the suction roller, a lower steam chamber located below the suction roller, and a linen conveying device that allows linens to be dried and ironed in sequence through the upper surface of the lower steam chamber, the inner surface of the upper steam chamber, and the outer surface of the upper steam chamber; the upper steam chamber is driven to rise or fall by a pair of upper oil cylinders arranged on the frame, so that the upper steam chamber is away from or close to the upper half of the suction roller, and the lower steam chamber is driven to rise or fall by a pair of lower oil cylinders arranged on the frame, so that the lower steam chamber is close to or away from the lower half of the suction roller; it is characterized in that: a synchronous lifting device is arranged at the bottom of the lower steam chamber to make the lower steam chamber rise smoothly; the structure of the upper steam chamber includes: a semi-circular shell with a closed semi-circular inner cavity, and the bottom of the semi-circular shell The outer surface contour of the semicircular shell corresponds to the outer surface contour of the suction drum; at least one water outlet connected to the closed semicircular inner cavity is provided on the front end surface of the semicircular shell, and at least one steam inlet connected to the closed semicircular inner cavity is provided on the rear end surface of the semicircular shell; a plurality of baffles are evenly and fixedly arranged in the closed semicircular inner cavity from front to back, and each baffle is parallel to the front end surface of the semicircular shell, and divides the closed semicircular inner cavity into a plurality of independent closed chambers of equal parts; at least one through hole group is provided on each baffle, and each through hole group is composed of at least three through holes arranged in sequence at intervals from left to right and connected from front to back, and each through hole group on two adjacent baffles is staggered from left to right; The structure of the synchronous lifting device is as follows: the connecting shaft is arranged on the frame below the lower steam chamber through the front and rear horizontal supports of the bearing seat, and a pair of synchronous lifting mechanisms are arranged on the connecting shaft, each synchronous lifting mechanism includes: a first connecting plate, a second connecting plate and a connecting rod, the bottom of the first connecting plate is fixedly connected to the connecting shaft, the bottom of the second connecting plate is hinged to the top of the first connecting plate, the bottom of the connecting rod is fixed to the top of the second connecting plate, and the top of the connecting rod is hinged to the connecting seat at the bottom of the lower steam chamber.

2. A trough type drying and ironing machine according to claim 1, characterized in that: The axes of the through holes in each through hole group are parallel to the axis of the semicircular ring-shaped shell.

3. A trough type drying and ironing machine according to claim 1 or 2, characterized in that: Two water outlets are arranged on the front end surface of the semicircular ring shell, and the two water outlets are respectively distributed on the left and right sides of the axis of the semicircular ring shell.

4. A trough type drying and ironing machine according to claim 1 or 2, characterized in that: Two steam inlets are arranged on the rear end surface of the semicircular shell body, and the two steam inlets are respectively distributed on the left and right sides of the axis of the semicircular shell body.

5. A trough type drying and ironing machine according to claim 3, characterized in that: Two steam inlets are arranged on the rear end surface of the semicircular shell body, and the two steam inlets are respectively distributed on the left and right sides of the axis of the semicircular shell body.

6. A trough type drying and ironing machine according to claim 1, characterized in that: The connecting rod is composed of a first connecting rod, a second connecting rod and a connecting sleeve. A first external thread section is provided on the upper section of the first connecting rod, a second external thread section is provided on the lower section of the second connecting rod, a first internal thread section matching with the first external thread section is provided on the inner side wall of the lower section of the connecting sleeve, and a second internal thread section matching with the second external thread section is provided on the inner side wall of the upper section of the connecting sleeve. The first connecting rod and the second connecting rod are threadedly connected by the connecting sleeve, and when the connecting sleeve rotates, the first connecting rod and the second connecting rod can be extended to both ends at the same time or retracted to the middle at the same time.

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