A small guide belt moving device for a trough type ironing machine

Abstract

The present invention discloses a small guide belt moving device for a trough type ironing machine, which is connected to a small guide belt tensioning mechanism and includes a translation shaft and a translation driving mechanism; a sliding sleeve of the small guide belt tensioning mechanism is rotatably and axially limitedly sleeved on the translation shaft, the translation shaft is axially movably arranged on a frame, and the translation driving mechanism is fixedly arranged on the frame, and its driving end is transmission-connected with one end of the translation shaft, and can drive the translation shaft to perform axial translation movement. The small guide belt moving device for a trough type ironing machine of the present invention can control the lateral displacement of the small guide belt, thereby avoiding abnormal wear of the small guide belt due to long-term fixed operation at the same position of the felt drying drum, and ensuring the ironing quality of the trough type ironing machine during long-term operation.

Description

Technical Field

[0001] The invention relates to industrial washing equipment, in particular to a trough type ironing machine. Background Art

[0002] The trough type ironing machine is mainly suitable for laundry places in hotels, hospitals, chain hotels and large laundry factories. It is a kind of equipment used to dry and iron the washed bed sheets, quilt covers, pillowcases, tablecloths and other linens. The trough type ironing machine is generally used in conjunction with the cloth spreading machine and folding machine, with high production efficiency. The ironing quality is good and the flatness is excellent.

[0003] The main structure of the trough ironing machine includes three sets of frames with left and right wall panels, and a felt-wrapped suction drying cylinder set inside the frame. A reduction motor assembly for transmission is installed on one side of the drying cylinder. A flexible ironing trough is installed on the lower side of the suction drying cylinder to heat and dry the ironed linens after storing heat.

[0004] like Figure 1 As shown, the trough type ironing machine is provided with a small belt guide device, which includes a plurality of belt guide rollers 1 and a plurality of parallel small belt guides 2. The belt guide rollers are arranged on a frame 3. The small belt guides 2 are arranged between the suction drying cylinder and the linens and are wound on the plurality of belt guide rollers 1. The small belt guide device plays a role of traction and guidance for the entry and output of the linens in the drying operation; the small belt guide 2 is kept in a tensioned state by a small belt guide tensioning mechanism. The small belt guide tensioning mechanism includes a gravity tensioning plate 4, a weight wheel 5 and a sliding sleeve 6. The small belt guide 2 passes around the weight wheel 5. The sliding sleeve 6 is rotatably sleeved on the optical axis. The optical axis is fixedly arranged on the frame 3. The sliding sleeve 6 is axially limited on the optical axis through the snap rings on both sides. When the trough type ironing machine is working, under the traction of the small guide belt 2, the linens enter from the first group of ironing slots and are unfolded after being rolled by the felt suction drying cylinder. They enter the second or third group of ironing slots in sequence. Finally, it enters the folding system from the end hot tank outlet.

[0005] In the operation of the small guide belt device in the prior art, each small guide belt 2 is always tractioned and circulated at the same position. Because the surface of the felt drying cylinder has a relatively fluffy and soft felt layer, when the guide belt in a taut state is always pressed at the same position for operation, it will inevitably cause the deformation and wear of the felt surface over time. The problem caused by this is that when the felt surface is deformed and worn, the linens will wrinkle abnormally, seriously affecting the ironing quality. At the same time, the deformation and wear of the felt surface also cause the small guide belt 2 to weaken the tension state, and weaken the pressing friction of the small guide belt 2 on the linens, thereby weakening the guiding force of the small guide belt 2, which will also cause abnormal wrinkling of the linens. Therefore, in the prior art, when the trough ironing machine is used for a long time, the ironing quality is often affected by the problems of the small guide belt and the drying cylinder, and the felt layer has to be replaced, which greatly affects the production efficiency. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a small guide belt moving device for a trough type ironing machine, which can control the lateral displacement of the small guide belt, thereby avoiding abnormal wear of the small guide belt caused by long-term fixed operation at the same position of the felt drying cylinder, and ensuring the ironing quality of the trough type ironing machine during long-term operation.

[0007] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0008] A small guide belt moving device for a trough-type ironing machine is connected to a small guide belt tensioning mechanism, and comprises a translation shaft and a translation driving mechanism; a sliding sleeve of the small guide belt tensioning mechanism is rotatably and axially limitedly sleeved on the translation shaft, the translation shaft is axially movably arranged in a translation shaft hole on a frame, the translation driving mechanism is fixedly arranged on the frame, a driving end of the translation driving mechanism is transmission-connected to one end of the translation shaft, and can drive the translation shaft to perform axial translation movement.

[0009] Furthermore, the translation drive mechanism is a cylinder drive mechanism, a screw drive mechanism or a hydraulic drive mechanism.

[0010] Furthermore, the translation drive mechanism is a cylinder drive mechanism, comprising a cylinder, a cylinder body of the cylinder being fixedly connected to the frame, and a cylinder rod being transmission-connected to the translation axis via a rod end joint bearing.

[0011] Furthermore, a controller, a contact detection device and at least two matching contact structures are provided; one of the contact detection device and the contact structure is provided on the frame, and the other is provided on the translation axis; the detection end of the contact detection device and the contact structure generate relative displacement with the movement of the translation axis; the controller controls the translation drive mechanism to start driving the translation axis according to manual or time relay instructions, and the controller determines the displacement of the translation axis according to the detection information of the contact detection device on the contact structure, and then controls the translation drive mechanism to stop driving the translation axis.

[0012] Furthermore, when the controller determines that the contact detection device detects the contact structure at the outermost position, it controls the translation drive mechanism to stop driving the translation axis and controls the translation drive mechanism to start displacement driving of the translation axis in the opposite direction to this time next time.

[0013] Furthermore, the contact detection device is a proximity switch, a photoelectric switch or a micro switch, and the contact detection device is fixedly arranged on the frame; the contact structure is a groove, a concave hole, a convex ring or a convex block matched with the translation axis.

[0014] Furthermore, the contact detection device is a proximity switch, and a plurality of annular grooves are matched and arranged on the translation axis.

[0015] Furthermore, the annular groove is arranged on an end of the translation shaft away from the translation drive mechanism and is arranged on the outside of the translation shaft hole.

[0016] The small guide belt moving device of the present invention can controllably drive the translation axis to translate axially by setting a translation driving device, so that the gravity tensioning plate and the weight wheel are translated. When the small guide belt is in a continuous circling operation in the working state, as the gravity tensioning plate and the weight wheel are translated, the lateral movement of the small guide belt part wrapped around the weight wheel will naturally drive the rest of the small guide belt to move laterally the same distance, thereby changing the contact position between the small guide belt and the felt surface of the felt drying cylinder, thereby cleverly avoiding deformation and wear of the felt surface caused by long-term friction between the small guide belt and the felt surface.

[0017] In order to effectively avoid the wear of the small guide belt and the felt surface, we need to drive the translation axis regularly. We can start the drive manually or automatically through a time relay. The lateral translation distance of the translation axis can be determined by setting the contact structure of the expected distance, and then detecting and judging by the contact detection device. When the translation of the translation axis reaches the expected distance, stop the translation drive mechanism to drive the translation axis, so that we can automatically control the translation drive of the translation axis.

[0018] When the controller determines that the contact detection device detects the contact structure at the most edge position, the controller controls the translation drive mechanism to stop driving the translation axis and controls the translation drive mechanism to start the displacement drive of the translation axis in the opposite direction of the current direction next time. In this way, the translation axis can be controlled to perform reciprocating translational motion at regular intervals, thereby guiding the contact position between the small guide belt and the felt drying cylinder to deviate regularly and reciprocate continuously. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a schematic diagram of the structure of the small belt guide device of the trough type ironing machine.

[0021] Figure 2 It is a structural schematic diagram of the small guide belt tensioning mechanism.

[0022] Figure 3 It is a structural schematic diagram of the small guide belt moving device of the trough type ironing machine of the present invention.

[0023] Figure 4 yes Figure 3 A partial enlarged schematic diagram of part A (annular groove, proximity switch part).

[0024] In the figure:

[0025] 1. Guide roller 2. Small guide belt

[0026] 3. Frame 4. Gravity tension plate

[0027] 5. Heavy hammer wheel 6. Sliding sleeve

[0028] 7. Translation axis 8. Cylinder

[0029] 9. Annular groove 10. Proximity switch

[0030] 11. Rod end bearings DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Figure 3 A small guide belt moving device for a trough-type ironing machine is shown, which is connected to a small guide belt tensioning mechanism, and includes a translation shaft 7 and a translation driving mechanism; a sliding sleeve 6 of the small guide belt tensioning mechanism is rotatably sleeved on the translation shaft 7, and axially limited by retaining rings on both sides of the sliding sleeve; the translation shaft 7 is axially movably arranged in a translation shaft hole on a frame 3, and a shaft sleeve is arranged in the translation shaft hole to facilitate axial translation movement of the translation shaft 7.

[0033] The translation drive mechanism is a cylinder drive mechanism, including a cylinder 8, a cylinder body of the cylinder 8 is fixedly connected to the frame 3, and a cylinder rod is connected to the translation shaft 7 via a rod end joint bearing 11. Of course, due to different designs or requirements, the translation drive mechanism can also be a screw drive mechanism or a hydraulic drive mechanism, etc., as long as the translation drive mechanism is fixedly arranged on the frame 3, its driving end is connected to one end of the translation shaft 7, and can drive the translation shaft 7 to perform axial translation movement.

[0034] The small guide belt moving device is provided with a controller, and the controller controls the translation drive mechanism to start driving the translation axis 7 according to the instruction of the time relay (by presetting a time for automatically moving the small guide belt position). Of course, the design of automatically and regularly starting the translation drive mechanism can also be that the operator starts the translation drive mechanism regularly by formulating equipment operation specifications.

[0035] like Figure 4 As shown, at one end of the translation shaft 7 away from the translation drive mechanism, the translation shaft 7 also extends out of the translation shaft hole for a section, and a section of the translation shaft 7 located outside the translation shaft hole is provided with 7 equally spaced annular grooves 9 (due to different designs or requirements, the annular grooves 9 can also be arranged at unequal intervals, and an equidistant arrangement is more reasonable, so that the small guide belt 2 can generate friction on the surface of the suction drying cylinder more evenly). A proximity switch 10 is provided to match the annular groove 9, and the proximity switch 10 is fixedly arranged on the frame. With the axial translation of the translation shaft 7, the detection end of the proximity switch 10 can detect the information change from one annular groove 9 to the adjacent annular groove 9, and then control the translation drive mechanism to stop driving the translation shaft 7 after the controller recognizes that the translation shaft has moved a predetermined distance. Thereby, the movement of the translation shaft is automatically and regularly started, and it is automatically stopped after moving a predetermined distance.

[0036] When the controller determines that the proximity switch detects the annular groove 9 at the outermost position, it controls the translation drive mechanism to stop driving the translation axis 7 and at the same time controls the translation drive mechanism to start driving the translation axis 7 in the opposite direction to the current direction next time, thereby realizing automatic reciprocating translation drive of the translation axis 7.

[0037] The seven annular grooves 9 may be provided in other numbers according to the equipment size, process requirements, etc., or even only two annular grooves 9 may be designed, and the translation shaft 7 only performs reciprocating translation motion between two positions, thereby guiding the small guide belt 2 to reciprocate between the two positions of the suction drying cylinder.

[0038] The annular groove 9 described in the above-mentioned proximity switch 10 and the translation axis movement detection structure of the annular groove 9 can also be set to a contact structure such as a concave hole, a convex ring or a convex block, which can be matched with the proximity switch 10 to realize the movement position detection of the translation axis 7; and the proximity switch 10 can also use a photoelectric switch to realize detection, or even directly realize detection through mechanical contact with the contact structure, and the detection end (contact detection device) uses a micro switch.

[0039] Even, the contact detection device can be fixedly arranged on the translation axis 7, and the contact structure can be fixedly arranged on the frame 3, as long as the detection end of the contact detection device and the contact structure can produce relative displacement accordingly when the translation axis moves.

[0040] In short, as long as the small guide belt moving device is provided with a contact detection device, a controller and at least two contact structures; the detection end of the contact detection device and the contact structure produce relative displacement with the movement of the translation axis; the controller judges the displacement of the translation axis according to the detection information of the contact detection device on the contact structure, and then controls the translation drive mechanism to stop driving the translation axis 7.

[0041] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A small guide belt moving device for a trough type ironing machine, connected to a small guide belt tensioning mechanism, characterized in that: It comprises a translation shaft and a translation driving mechanism; the sliding sleeve of the small guide belt tensioning mechanism is rotatably and axially limitedly sleeved on the translation shaft, the translation shaft is axially movably arranged in the translation shaft hole on the frame, the translation driving mechanism is fixedly arranged on the frame, the driving end of the translation driving mechanism is drivingly connected with one end of the translation shaft, and can drive the translation shaft to perform axial translation movement; A controller, a contact detection device and at least two contact structures that are matched are also provided; one of the contact detection device and the contact structure is provided on the frame, and the other is provided on the translation axis; the detection end of the contact detection device and the contact structure generate relative displacement with the movement of the translation axis; the controller controls the translation drive mechanism to start driving the translation axis according to manual or time relay instructions, and the controller determines the displacement of the translation axis according to the detection information of the contact detection device on the contact structure, and then controls the translation drive mechanism to stop driving the translation axis.

2. The small guide belt moving device for a trough type ironing machine according to claim 1, characterized in that: The translation drive mechanism is a cylinder drive mechanism, a screw drive mechanism or a hydraulic drive mechanism.

3. The small guide belt moving device for a trough type ironing machine according to claim 2, characterized in that: The translation drive mechanism is a cylinder drive mechanism, which comprises a cylinder, a cylinder body of the cylinder is fixedly connected to the frame, and a cylinder rod is transmission-connected to the translation axis via a rod end joint bearing.

4. The small guide belt moving device for a trough type ironing machine according to any one of claims 1 to 3, characterized in that: When the controller determines that the contact detection device detects the contact structure at the outermost position, it controls the translation drive mechanism to stop driving the translation axis and controls the translation drive mechanism to start displacement driving of the translation axis in the opposite direction to the current direction next time.

5. The small guide belt moving device for a trough type ironing machine according to claim 4, characterized in that: The contact detection device is a proximity switch, a photoelectric switch or a micro switch, and the contact detection device is fixedly arranged on the frame; the contact structure is a groove, a concave hole, a convex ring or a convex block matched with the translation axis.

6. The small guide belt moving device for a trough type ironing machine according to claim 5, characterized in that: The contact detection device is a proximity switch, and a plurality of annular grooves are matched and arranged on the translation shaft.

7. The small guide belt moving device for a trough type ironing machine according to claim 6, characterized in that: The annular groove is arranged on an end of the translation shaft away from the translation driving mechanism and on the outer side of the translation shaft hole.

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