A bed cover machine

Abstract

The invention discloses a bed cover machine, including a side forming mechanism, a deep folding mechanism, a corner sealing and cutting mechanism and a cutting mechanism. The side forming mechanism includes a side folding component, an elastic band introduction component, a sealing component and a first traction component; the deep folding mechanism includes a folding component, and the folding component includes a second guide roller arranged horizontally, a deep folding plate and a lower supporting plate. The second guide roller is arranged below the deep folding plate. The deep folding plate is divided into a front folding plate and a rear folding plate. The rear folding plate is trapezoidal and inclined. The front folding plate is square and horizontally arranged. The lower supporting plate is arranged below the front folding plate, and there is a gap between the two. The corner sealing and cutting mechanism includes a corner sealing and cutting component and a second traction component. The material undergoes side forming, deep folding, corner sealing and cutting in sequence, and is finally cut into a disposable unit bed cover, thereby realizing automatic processing of the bed cover.

Description

Technical Field

[0001] The invention relates to a device for processing a bedspread, in particular to a disposable bedspread machine. Background Art

[0002] At present, during medical examinations and care, secretions, disinfectant flushing fluids, etc. will contaminate the bed, and it is necessary to use one bed per person and disinfect it, which greatly increases the burden on the hospital. The use of disposable sheets can greatly improve work efficiency and reduce the burden on the hospital. Disposable sheets can be directly replaced after examination and care; however, disposable sheets are easy to slide during use, which is less comfortable to use, and the mattress will be exposed when sliding more, so there is still a risk of contamination. Bed covers can cover the mattress and are not easy to slide, so they are more comfortable to use and safer, but disposable bed covers are difficult to form and process, and there is currently no equipment for processing disposable bed covers. Summary of the invention

[0003] In view of the technical problems existing in the background technology, the technical problem solved by the present invention is to provide a bedspread machine for processing disposable bedspreads.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solution: the bed cover machine is characterized in that: it includes

[0005] Material rack;

[0006] A side forming mechanism comprising:

[0007] The side folding component comprises a first guide roller and a small guide plate which are arranged transversely, wherein the first guide roller is arranged below the small guide plate, and the small guide plate is provided with a folding plate.

[0008] The elastic band introduction component includes a material rack and a guide wheel.

[0009] The sealing component is arranged in front of the small guide plate.

[0010] and a first traction component, which is arranged in front of the sealing component, wherein the first traction component comprises a first traction roller;

[0011] A deep folding mechanism comprising:

[0012] The hemming component includes a second guide roller arranged transversely, a deep hemming plate and a lower supporting plate, wherein the second guide roller is arranged below the deep hemming plate, the deep hemming plate is divided into a front hemming plate and a rear hemming plate, the rear hemming plate is trapezoidal and inclined, the front hemming plate is square and horizontally arranged, and the lower supporting plate is arranged below the front hemming plate, with a gap between the two;

[0013] A corner sealing and cutting mechanism, comprising a corner sealing and cutting component and a second traction component, wherein the second traction component comprises a second traction roller;

[0014] and cutting mechanism.

[0015] The first traction component of the present invention pulls the material and the elastic band forward, the material bypasses the first guide roller and is pressed on the small guide plate, the elastic band is placed above the material through the guide wheel, the two sides of the material are folded upwards through the folding plate and covered on the top of the elastic band, and then enters the sealing component for longitudinal sealing, the elastic band is wrapped around the two side edges of the material, and because the two side edges of the material are placed with the elastic band, the two side edges have a shrinkage effect; then the material enters the deep folding, the material bypasses the second guide roller, and is pressed on the deep folding plate, and its two sides are folded inwards along the two side edges of the rear section folding plate, and the two sides of the material gradually form a deep fold until it enters the deep folding plate and the lower support plate. The gap between the two sides of the material, the deep folds on both sides of the material, namely the left side and the side of the bedspread, the material is corner-sealed by the corner sealing and cutting components and the excess part is cut off, that is, V-shaped sealing edges are formed on both sides of the material and the excess material outside the V-shaped sealing edges is cut off, the V-shaped sealing edges are composed of two symmetrical beveled edges, the beveled edges are the side edges of the formed bedspread, the left sealing edge to the right sealing edge, namely the front side and the rear side of the bedspread, the left rear edge is horizontally cut along the center position of the V-shaped sealing edge to form a unit bedspread, the elastic band is stretched to make the bedspread cover outside the mattress, the elastic band is contracted, and the bedspread is fixed on the mattress to prevent the bedspread from deviation.

[0016] Preferably, the folding plate includes a folding edge and a longitudinal side edge, the side edge is connected to the small guide plate, there is a gap between the folding plate and the small guide plate, the folding edge is inclined, and forms an angle less than 90 degrees with the side edge. The side edge of the material bypasses the side edge and folds inward along the folding edge into the gap between the folding plate and the small guide plate, and is placed above the material, thereby forming an upwardly folded side fold.

[0017] Preferably, the small guide plates are provided with two groups, which are divided into a left guide plate and a right guide plate, the folding plate on the left guide plate is arranged at the left end, the folding plate on the right guide plate is arranged at the right end, and the two folding plates are arranged symmetrically on the left and right.

[0018] Preferably, a baffle is extended downward from the rear end of the small guide plate, and the connection between the baffle and the small guide plate is rounded to remove stress and prevent the material from being scratched or damaged during traction. A pressure plate is also provided above the small guide plate, and the pressure plate plays a shaping role after the side folding of the material to deepen the crease.

[0019] Preferably, the side forming mechanism is provided with two sets, which are divided into a first side forming mechanism and a second side forming mechanism, which are arranged in sequence longitudinally; the material is folded twice, and the side fold is thickened and strengthened.

[0020] Preferably, the rear end of the lower support plate is tilted downward; and the rear end of the deep folding plate and the rear end of the lower support plate are both rounded, so as to remove stress and avoid scratches and damage to the material during traction.

[0021] Preferably, the lower pallet and the depth folding plate are provided in two groups, which are divided into a left pallet, a right pallet, a left folding plate and a right folding plate, and the left folding plate, the right folding plate, the left pallet and the right pallet can move laterally; the width of the lower pallet and the depth folding plate is adjusted according to the width of the material, the width of the folding and the width of the depth folding, so as to process bedspreads of different specifications.

[0022] Preferably, the corner sealing and cutting component comprises

[0023] A corner sealing assembly, comprising a sealing roller and a sealing seat pressed with the sealing roller, wherein a V-shaped sealing head is provided on the circumferential surface of the sealing roller;

[0024] and a cutting assembly, which includes an upper hob and a lower roller pressed with the upper hob, wherein the circumferential surface of the upper hob is provided with a V-shaped blade;

[0025] The corner cutting assembly is arranged in front of the corner sealing assembly, the second traction component is arranged in front of the corner cutting assembly, and the corner sealing assembly and the corner cutting assembly are both provided with two groups, which are divided into a left corner sealing assembly and a right corner sealing assembly and a left corner cutting assembly and a right corner cutting assembly which are arranged symmetrically on the left and right. When the material passes through the corner sealing assembly, the sealing roller and the sealing seat are pressed together on both sides of the material to form a V-shaped sealing line, and then the material passes through the corner cutting assembly, the upper roller and the lower roller are pressed together, and the material is rolled and cut along the outer side of the V-shaped sealing line to remove the excess waste.

[0026] Preferably, a guide rail is provided on the frame of the bedspread machine, the guide rail is arranged transversely, and the corner cutting assembly and the corner sealing assembly are slidably arranged on the guide rail; the transverse position of the corner cutting assembly and the corner sealing assembly is adjusted to process bedspreads of different specifications.

[0027] Preferably, along the conveying direction, a folding mechanism, a transverse folding mechanism, a steering mechanism and a longitudinal folding mechanism are also arranged in front of the sealing and cutting mechanism. The folding mechanism folds the material longitudinally to reduce its width, and then enters the transverse folding to further reduce the width of the material. At this time, the material is arranged vertically, and the steering mechanism turns the vertically arranged material into a horizontal arrangement, and then it is sent to the cutting station. The cutting mechanism cuts the continuous material into unit bedspreads along the middle position of the V-shaped angle, and finally the unit bedspread is longitudinally folded into a small piece by the longitudinal folding mechanism, which is not only convenient for storage and carrying, but also convenient for sales. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the present invention.

[0029] Figure 2 It is a schematic diagram of the side forming mechanism of the present invention.

[0030] Figure 3 It is a schematic diagram of the folding component of the present invention.

[0031] Figure 4 It is a schematic diagram of the sealing mechanism of the present invention.

[0032] Figure 5 It is a schematic diagram of the upper hob of the present invention.

[0033] Figure 6 It is a step diagram of the bedspread molding of the present invention.

[0034] Figure 7 It is a schematic diagram of the folding mechanism of the present invention.

[0035] Figure 8 It is a schematic diagram of the transverse folding mechanism of the present invention.

[0036] Fig. 9 It is the right side view of the present invention.

[0037] Fig.10 For the present invention Figure 2 Enlarged view of point A. DETAILED DESCRIPTION

[0038] The following describes the details and working principle of the implementation mode and examples of the present invention in conjunction with the accompanying drawings. In this embodiment, the material conveying direction is forward. This bed cover machine includes a material unwinding rack 1, a side molding mechanism 2, a deep folding mechanism 4, corner sealing and cutting mechanisms 5, 6 and a cutting mechanism 10. The material 31 is a roll material, which is placed on the unwinding rack 1. The disposable bed cover can be made of non-woven fabric or film; the side molding mechanism 2 includes a side folding component, an elastic band introduction component, a sealing component 38 and a first traction component 12. The side folding component includes a first guide roller 24 and a small guide plate 11 arranged transversely. The first guide roller is arranged below the small guide plate. A folding plate 13 is provided on the small guide plate. The elastic band introduction component includes a material rack and a guide wheel 15. See the attached Figure 2The guide wheel is arranged behind the small guide plate 11, the sealing component 38 is arranged in front of the small guide plate 11, the first traction component 12 is arranged in front of the sealing component, and the first traction component 12 includes a first traction roller. The material 31 and the elastic band pass through the folding side component and the sealing component at one time under the traction of the first traction roller, that is, the material bypasses the first guide roller 24 and is pressed on the small guide plate 11. The elastic band is placed above the material through the guide wheel 15, and both sides of the material are folded upward through the folding plate 13 and covered on the top of the elastic band to wrap the elastic band, and then enter the sealing station. In this embodiment, the folding plate 13 includes a folding edge 16 and a longitudinal side edge 17, and the side edge is connected to the small guide plate 11. There is a gap between the folding plate 13 and the small guide plate 11, and the gap is for the material and the side folding edge to pass through. The folding edge 16 is inclined and forms an angle less than 90 degrees with the side edge 17. The side edge of the material bypasses the side edge 17 of the folding plate and folds inward along the folding edge 16 to enter the gap between the folding plate and the small guide plate, and is placed above the material, thereby forming an upwardly folded side folding edge 32; because both sides of the material need to be folded, if the small guide plate is long enough, it only needs to be on the small guide plate. The two ends of the plate 11 are provided with symmetrical folding plates 13. In order to facilitate the adjustment of the spacing between the left and right folding plates, the small guide plate 11 is provided with two groups, which are divided into a left guide plate and a right guide plate. The folding plate 13 on the left guide plate is arranged at the left end, and the folding plate on the right guide plate is arranged at the right end. The two folding plates 13 are arranged symmetrically on the left and right. The left guide plate and the right guide plate can move laterally on the frame. For example, a linear guide rail or a screw mechanism is arranged on the frame. The left guide plate and the right guide plate are slidably arranged on the linear guide rail or the screw. In this way, the position of the folding plate can be adjusted according to the width of the material and the width of the side fold. The sealing component 38 can be a heat sealing roller or a heat sealing knife, or ultrasonic wave. If the material is a film, heat sealing can be performed by heat sealing roller, and if the material is a non-woven fabric, ultrasonic wave sealing can be performed. Because elastic bands are inserted into both sides of the material, the sides have a shrinkage effect. When inserted, the elastic bands are in a stretched state. When the formed bedspread is not subjected to external force, the elastic bands shrink to play a fixing role and prevent the bedspread from deviating.The deep folding mechanism 4 includes a folding component, which includes a second guide roller arranged horizontally, a deep folding plate 18, 22 and a lower support plate 20. The second guide roller is arranged below the deep folding plate. The deep folding plate is divided into a front folding plate 22 and a rear folding plate 18. The rear folding plate is trapezoidal 18 and is inclined. The front folding plate 22 is square and is horizontally arranged. The lower support plate is arranged below the front folding plate, and a gap 21 is provided between the two. Similarly, the gap is provided for the deep folding 33 of the material to pass through. After the material folds its side edges, it bypasses the second guide roller and is pressed on the deep folding plates 18 and 22. The material enters the deep folding plate from bottom to top, and the two sides of the material are folded inward along the two side edges of the rear folding plate, gradually forming a The material is deep-folded until it enters the gap 21 between the deep-folding plate and the lower support plate. The deep-folded edges on both sides of the material form the left and right sides of the bedspread. The corner sealing and cutting mechanism includes corner sealing and cutting components 5, 6 and a second traction component 39. The second traction component includes a second traction roller. The second traction roller 39 not only plays the role of traction of the material, but also rolls and shapes the material after the deep folding. The corner sealing and cutting component forms a V-shaped sealing edge 34 on the left and right sides of the continuous material and cuts off the excess waste material outside the sealing edge. The V-shaped sealing edge 34 is composed of two symmetrical beveled edges, which are the side edges of the formed bedspread. Therefore, the slope of the beveled edge is 45 degrees, and the depth of the V-shaped sealing edge is similar to the width of the deep folded edge. See the attachment. Figure 7 , cut horizontally along the center position 35 of the V-shaped sealing edge to form a unit bed cover 36. The left sealing edge to the right sealing edge are the front and rear sides of the bed cover. Stretch the elastic band so that the bed cover is set outside the mattress. When the elastic band shrinks, the bed cover is fixed on the mattress to prevent the bed cover from running off the mattress. If the material is a film, the corner sealing and cutting component can adopt a sealing and cutting knife. The waste material can be cut off while sealing. It is more commonly used on film bags. If the material is a non-woven fabric, ultrasonic sealing can be adopted. In order to avoid damage from the ultrasonic wave, the sealing and cutting are divided into two stations. The sealing knife or cutting knife of the sealing and cutting adopts an up and down moving method to press with the lower knife or the lower mold, and the bed cover machine adopts intermittent conveying. In order to improve production efficiency, a rolling cutting method is adopted. See attached Figure 5The corner sealing and cutting components include a corner sealing component 5 and a corner cutting component 6. The corner sealing component includes a sealing roller 26 and a sealing seat 27 pressed with the sealing roller. The circumferential surface of the sealing roller is provided with a V-shaped sealing head. The corner cutting component includes an upper roller 28 and a lower roller 29 pressed with the upper roller. The circumferential surface of the upper roller is provided with a V-shaped blade 30. The corner cutting component 6 is arranged in front of the corner sealing component 5, and the second traction component 39 is arranged in front of the corner cutting component 6. The corner sealing component and the corner cutting component are both provided with two groups, which are divided into a left corner sealing component and a right corner sealing component and a left corner cutting component and a right corner cutting component that are symmetrically arranged on the left and right. The second traction roller pulls the material forward, and the sealing roller 26 rotates one circle to form a V-shaped sealing line on the side of the material. When the material passes through the corner cutting assembly, the roller cutter rotates one circle to cut along the inner side of the V-shaped sealing line to remove the excess V-shaped residual material; this roller sealing and rolling cutting method is carried out during the material conveying process, and the rotation speed of the sealing roller and the roller cutter is consistent with the material conveying speed, which is more efficient than intermittent conveying; finally, the cutting mechanism is used to cut horizontally along the center position of the V-shaped sealing edge to form a unit bed cover, and the cutting mechanism 10 can use a cutting knife that can be lifted up and down and a knife pad that cooperates with the cutting knife. In this embodiment, in order to facilitate the folding of the bed cover, a folding mechanism 7, a horizontal folding mechanism 8, a steering mechanism 9 and a longitudinal folding mechanism 37 are also arranged in front of the sealing and cutting mechanism along the material conveying direction; the cutting mechanism is arranged between the steering mechanism and the longitudinal folding mechanism, and the material is cut after being horizontally folded.The folding mechanism 7 folds the material longitudinally to reduce its width. The folding mechanism includes a guide roller 45, an isosceles triangle folding plate 40 and a shaping roller 41 arranged above the folding plate. After the material is folded along the isosceles folding plate 40, it is rolled and shaped by the shaping roller 41, and then enters the transverse folding to further reduce the width of the material. The transverse folding mechanism includes a vertically arranged upper plug plate 42 and a lower plug plate 43. The material insertion edge of the upper plug plate is arranged downward, and the material insertion edge 44 of the lower plug plate is arranged upward. The inlet ends of the upper plug plate and the lower plug plate are both arc-shaped to reduce stress and avoid damage to the material. The upper plug plate and the lower plug plate are arranged alternately, and the lower end of the upper plug plate is inserted between adjacent lower plug plates, and the upper end of the lower plug plate is inserted between adjacent upper plug plates. The material passes around the insertion edge of the upper insert plate or the lower insert plate in turn, and the material is folded horizontally. At this time, the horizontal width of the material is very narrow, and the material is arranged vertically. The steering mechanism converts the vertically arranged material into a horizontal arrangement. The steering mechanism includes a guide rod. The folded material passes around the guide rod. The guide rod makes the vertically arranged material horizontally arranged, and then is sent to the cutting station. The cutting mechanism cuts the continuous material into unit bedspreads 36 along the middle position 35 of the V-shaped angle. Finally, the unit bedspread is longitudinally folded by the longitudinal folding mechanism 37. The longitudinal folding mechanism is a prior art and its structure is not described in detail. The longitudinal folding mechanism longitudinally folds the bedspread that has been transversely folded into a small piece, which is not only convenient for storage and carrying, but also convenient for sales.

[0039] In order to improve the strength of the side of the bedspread, the side forming mechanism is provided with two sets, which are divided into a first side forming mechanism 2 and a second side forming mechanism 3, which are arranged in sequence longitudinally. The second side forming mechanism can omit the elastic band introduction component. After the first side folding and the introduction of the elastic band for sealing, the second side folding and sealing only need to be done again. In this way, the side of the material is double-layered, the side folding is thickened, the fastness and strength are enhanced, it is not easy to tear, and the service life is longer. A baffle 14 extends downward from the rear end of the small guide plate 11. The connection between the baffle and the small guide plate is chamfered. The material and the small guide plate are in a close contact state. The chamfering removes stress and prevents the material from being scratched or damaged during the traction process. A pressing plate is also provided above the small guide plate 11. The pressing plate presses on the material after the side folding to play a shaping role and deepen the crease, so that the sealing effect is better. The rear end of the lower support plate 20 is tilted downward, so that the entrance is larger, which is conducive to the entry of materials between the deep folding plate and the lower support plate; the rear end 23 of the deep folding plate and the rear end 19 of the lower support plate are both rounded, which can also remove stress and avoid scratches and damage to materials during traction.

[0040] Because the width of the material, the width and height of the bedspread are different, in order to process bedspreads of different specifications, the lower support plate 20 and the depth folding plate 22 are provided with two groups, which are divided into a left support plate, a right support plate, a left folding plate and a right folding plate. The left folding plate, the right folding plate, the left support plate and the right support plate can move laterally, and a linear guide rail can be set on the frame. The left support plate and the right support plate are slidably set on the linear guide rail, so that the distance between the left and right support plates can be adjusted. The movement of the left and right support plates can adopt a screw mechanism or manual, and the linear guide rail can also adopt a guide rod bag body; the left folding plate and the right folding plate can be connected in the same way, or the two can be connected in a splicing manner, and the two are overlapped and fixed with screws. When the required width is narrow, the two are moved toward each other and then fixed. On the contrary, when the required width is wider, they move in the opposite direction. The invention adjusts the width of the lower supporting plate and the depth folding plate and the distance between the two folding plates according to the width of the material, the width of the folding edge and the specifications of the bed cover, so as to be used for processing bed covers of different specifications.

Claims

1. A bedspread machine, characterized in that: Included Material rack; A side forming mechanism comprising: The side folding component comprises a first guide roller and a small guide plate which are arranged transversely, wherein the first guide roller is arranged below the small guide plate, and the small guide plate is provided with a folding plate. The elastic band introduction component includes a material rack and a guide wheel. The sealing component is arranged in front of the small guide plate. and a first traction component, which is arranged in front of the sealing component, wherein the first traction component comprises a first traction roller; A deep folding mechanism comprising: The hemming component includes a second guide roller arranged transversely, a deep hemming plate and a lower supporting plate, wherein the second guide roller is arranged below the deep hemming plate, the deep hemming plate is divided into a front hemming plate and a rear hemming plate, the rear hemming plate is trapezoidal and inclined, the front hemming plate is square and horizontally arranged, and the lower supporting plate is arranged below the front hemming plate, with a gap between the two; A corner sealing and cutting mechanism, comprising a corner sealing and cutting component and a second traction component, wherein the second traction component comprises a second traction roller; and cutting mechanism.

2. The bed cover machine according to claim 1, characterized in that: The folding plate includes a folding edge and a longitudinal side edge, the side edge is connected to the small guide plate, there is a gap between the folding plate and the small guide plate, the folding edge is inclined and forms an angle less than 90 degrees with the side edge.

3. The bed cover machine according to claim 1, characterized in that: The small guide plates are provided with two groups, which are divided into a left guide plate and a right guide plate. The folding plate on the left guide plate is arranged at the left end, and the folding plate on the right guide plate is arranged at the right end, and the two folding plates are arranged symmetrically on the left and right.

4. The bed cover machine according to claim 1, characterized in that: A baffle plate is extended downward from the rear end of the small guide plate, and the connection between the baffle plate and the small guide plate is rounded; a pressure plate is also arranged above the small guide plate.

5. The bed cover machine according to any one of claims 1 to 4, characterized in that: The side forming mechanisms are provided in two sets, which are divided into a first side forming mechanism and a second side forming mechanism, and the two are arranged in sequence longitudinally.

6. The bed cover machine according to claim 1, characterized in that: The rear end of the lower supporting plate is tilted downward; and the rear end of the deep folding plate and the rear end of the lower supporting plate are both rounded.

7. The bed cover machine according to claim 1, characterized in that: The lower support plate and the depth folding plate are provided in two groups, which are divided into a left support plate, a right support plate, a left folding plate and a right folding plate. The left folding plate, the right folding plate, the left support plate and the right support plate can move laterally.

8. The bed cover machine according to claim 1, characterized in that: The corner sealing and cutting component comprises A corner sealing assembly, comprising a sealing roller and a sealing seat pressed with the sealing roller, wherein a V-shaped sealing head is provided on the circumferential surface of the sealing roller; and a cutting assembly, which includes an upper hob and a lower roller pressed with the upper hob, wherein the circumferential surface of the upper hob is provided with a V-shaped blade; The corner cutting assembly is arranged in front of the corner sealing assembly, and the second traction component is arranged in front of the corner cutting assembly. The corner sealing assembly and the corner cutting assembly are each provided with two groups, which are divided into a left corner sealing assembly and a right corner sealing assembly which are arranged symmetrically on the left and right, and a left corner cutting assembly and a right corner cutting assembly.

9. The bed cover machine according to claim 8, characterized in that: A guide rail is arranged on the frame of the bed cover machine, and the guide rail is arranged transversely, and the corner cutting assembly and the corner sealing assembly are slidably arranged on the guide rail.

10. The bed cover machine according to claim 1, characterized in that: Along the conveying direction, a folding mechanism, a transverse folding mechanism, a steering mechanism and a longitudinal folding mechanism are also arranged in front of the sealing and cutting mechanism.

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