CN220617835U - Adsorption roller and paper processing equipment - Google Patents
Adsorption roller and paper processing equipment Download PDFInfo
- Publication number
- CN220617835U CN220617835U CN202321999611.2U CN202321999611U CN220617835U CN 220617835 U CN220617835 U CN 220617835U CN 202321999611 U CN202321999611 U CN 202321999611U CN 220617835 U CN220617835 U CN 220617835U
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- valve rod
- suction
- roller body
- hole
- roller
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- 238000001179 sorption measurement Methods 0.000 title claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses an adsorption roller, which is characterized in that the adsorption roller is connected with a valve rod which rotates along with the adsorption roller, the valve rod is blocked between an air suction hole on the roller surface and an inner cavity of a roller body, a through hole is formed in the valve rod, when the through hole on the valve rod is opposite to the air suction hole, the air suction hole is communicated with the inner cavity of the roller body through the through hole on the valve rod, and when the through hole on the valve rod is staggered with the air suction hole, the air suction hole is blocked by the valve rod so as to be blocked from the inner cavity of the roller body. The utility model also discloses paper processing equipment provided with the adsorption roller. The utility model has the advantages that on one hand, the negative pressure state of the inner cavity of the roller body is not required to be changed through the air valve, the inner cavity of the roller body can always keep the negative pressure strong enough, and the air suction state of the air suction hole can be switched instantaneously; on the other hand, the valve rod has small movement amplitude relative to the roller body, and the valve rod is worn by the roller body, so that the problem that the adsorption force of the air suction hole is easy to be reduced due to the abrasion of the element is solved.
Description
Technical Field
The present utility model relates to an adsorption roller used in paper processing equipment such as a paper towel folding machine and a rewinder. The utility model also relates to a paper processing device provided with the suction roller.
Background
The adsorption roller is a rotating roller with a plurality of air suction holes on the peripheral surface, and is widely applied to various paper processing equipment such as paper towel folding machines, rewinding machines and the like.
In order to control the air suction state of the air suction holes on the roller surface, the existing adsorption roller mainly adopts two structural schemes. One is to arrange a suction cavity in the roller body which is communicated with a suction hole on the roller surface, and the suction cavity is connected with vacuum equipment through an air valve. When the air valve is opened, the air suction cavity is vacuumized by the vacuum equipment shaft, the air suction hole communicated with the air suction cavity starts to suck air, and when the air valve is closed, the air suction cavity is restored to normal pressure, and the air suction hole stops sucking air along with the air suction hole. The disadvantage of this solution is that the switching of the suction state is slow, a period of time is required from the opening of the gas valve to the formation of a sufficiently strong negative pressure in the suction hole, and likewise a period of time is required from the closing of the gas valve to the complete disappearance of the negative pressure in the suction hole, the switching of the suction state being slow.
The other structure scheme of the existing suction roller is that a suction element is arranged in a roller body, the suction element does not rotate along with the suction roller but can reciprocate along the radial direction or the axial direction of the suction roller, and the suction element is always communicated with vacuum equipment and keeps negative pressure. When the suction element moves to a position close to the suction hole in the radial direction or the axial direction of the roller body, the suction hole starts to suck air, and conversely, when the suction element deviates from the suction hole, the suction hole stops sucking air. The proposal overcomes the defects of the former proposal, but because the suction roller rotates relative to the suction element, the suction element is easy to be worn by the roller body, the part of the suction element, which is clung to the inner wall of the roller body, leaks air, and reduces the suction force of the suction hole. The faster the suction roll rotation speed, the more significant the disadvantage.
Disclosure of Invention
The utility model aims to provide an adsorption roller which can solve the problem that the air suction state of an air suction hole is slowly switched and the problem that the adsorption force of the air suction hole is easily reduced due to element abrasion. Another object of the present utility model is to provide a paper processing apparatus that solves the adverse effects of such apparatus due to the above-mentioned problems of the suction roll.
The adsorption roller is realized by the following steps: the adsorption roller comprises a roller body inner cavity used for being connected with vacuum equipment, an air suction hole penetrating through the roller body inner cavity is formed in the outer peripheral surface of the roller body, particularly, the adsorption roller is connected with a valve rod rotating along with the adsorption roller, the valve rod is blocked between the air suction hole and the roller body inner cavity, a through hole is formed in the valve rod, when the valve rod moves relative to the roller body and the through hole on the valve rod is opposite to the air suction hole, the air suction hole is communicated with the roller body inner cavity through the through hole on the valve rod, and when the valve rod moves relative to the roller body and the through hole on the roller body is staggered with the air suction hole, the air suction hole is blocked by the valve rod so that the air suction hole is blocked from the roller body inner cavity.
As an alternative implementation mode, a plurality of air suction holes are formed in the outer peripheral surface of the roller body, the air suction holes are grouped along the circumferential direction of the roller body, each group of air suction holes consists of a plurality of air suction holes which are longitudinally arranged along the roller body, the valve rods are in one-to-one correspondence with the groups of air suction holes, each valve rod is blocked between a group of corresponding air suction holes and the inner cavity of the roller body, a plurality of through holes are longitudinally arranged along the valve rods, when any one of the through holes on the valve rods moves to be opposite to a group of corresponding air suction holes on the valve rod, the whole group of corresponding air suction holes of the valve rod are all communicated with the inner cavity of the roller body through the through holes on the valve rod, and when any one of the through holes on the valve rod moves to be staggered with the group of corresponding air suction holes of the valve rod, the whole group of corresponding air suction holes of the valve rod are all blocked by the valve rod so that the whole group of air suction holes of the valve rod are all blocked by the inner cavity of the roller body.
As an alternative embodiment, the valve rod moves relative to the roller body in such a way that the valve rod reciprocates along its longitudinal axis.
As an alternative embodiment, the valve stem is circular in cross-section and the valve stem moves relative to the roller body in such a way that the valve stem rotates about its longitudinal axis.
In another aspect, the paper processing apparatus of the present utility model is implemented as follows: the paper processing equipment comprises the adsorption roller, wherein the inner cavity of the roller body is connected with the vacuum equipment, the vacuum equipment vacuumizes the inner cavity of the roller body to keep negative pressure in the inner cavity of the roller body, and the paper processing equipment is also provided with a driving mechanism for driving the valve rod to move relative to the roller body.
As an alternative embodiment, the driving mechanism is a cam mechanism, the cam mechanism takes the valve rod as a follower of the cam, the valve rod rotates together with the adsorption roller relative to the cam, and the valve rod reciprocates along the longitudinal axis of the valve rod under the action of the cam.
The utility model has the advantages that: on the one hand, the negative pressure state of the inner cavity of the roller body does not need to be changed through the air valve, the inner cavity of the roller body can always keep strong enough negative pressure, as long as the through hole on the valve rod is opposite to the air suction hole, the negative pressure kept by the inner cavity of the roller body can be immediately transmitted to the air suction hole through the through hole, so that the air suction hole can instantly establish strong enough negative pressure, otherwise, as long as the through hole on the valve rod is staggered with the air suction hole, the air suction hole can be immediately separated from the inner cavity of the roller body, the negative pressure of the air suction hole can completely disappear in the instant, and the air suction hole state switching can be instantly completed. On the other hand, the valve rod rotates along with the adsorption roller, and the movement amplitude of the valve rod relative to the roller body only needs to meet the two positions of the through hole on the valve rod and the suction hole on the adsorption roller, which are just staggered and just opposite, so that the movement amplitude of the valve rod relative to the roller body is small, the valve rod is little worn by the roller body, and the problem that the suction force of the suction hole is easy to be reduced due to element wear is solved.
Drawings
FIG. 1 is a schematic view of an embodiment of a suction roll according to the present utility model;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 1, but without showing the valve stem;
FIG. 4 is a schematic view of a through-hole in a roll wall changed to a dovetail groove;
FIG. 5 is a schematic view of the valve stem moved to its through-hole opposite the suction port;
FIG. 6 is a cross-sectional view of the location indicated by A-A in FIG. 1, but with the valve stem modified to be circular in cross-section;
FIG. 7 is a schematic view of the valve stem rotated about its longitudinal axis until its through bore is opposite the suction port;
fig. 8 is a schematic view of the structure of an embodiment of the paper processing apparatus of the present utility model.
Detailed Description
In order to facilitate an understanding of the utility model, a more complete description is provided below in connection with the accompanying drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present.
One embodiment of the suction roll of the present utility model is shown in fig. 1. The suction roll has a roll body cavity 1. When the vacuum roll is in operation, the roll body inner cavity 1 is connected with vacuum equipment, and the vacuum equipment vacuumizes the roll body inner cavity so that the roll body inner cavity keeps negative pressure. The outer peripheral surface of the roller body is provided with a plurality of air suction holes 2 which are communicated with the inner cavity 1 of the roller body. Referring to fig. 2, the suction holes are divided into five groups 2a, 2b, 2c, 2d, 2e along the circumferential direction of the roll body, each group of suction holes being composed of a plurality of suction holes 2 arranged longitudinally along the roll body as shown in fig. 1.
Referring to fig. 1, the suction roll is coupled with a valve stem 3, and the valve stem 3 rotates together with the suction roll. As a specific embodiment, as shown in fig. 3, in this example, through holes 4 (the through holes are not shown in fig. 3 for clarity) penetrating longitudinally to both ends of the suction roller are provided in the roller wall of the suction roller, and the valve rod is inserted into the through holes 4 from the end face of the suction roller. The number of through holes 4 is the same as that of the valve rods 3, and one valve rod is inserted into one through hole, thereby constituting a coupling relationship of the valve rod and the suction roller. As another embodiment, the through hole 4 shown in fig. 3 may be modified to have a dovetail groove structure shown in fig. 4.
Referring to fig. 2, the valve rod 3 corresponds to each group of air suction holes 2a to 2e one by one. Each valve rod 3 is blocked between a group of corresponding air suction holes and the inner cavity 1 of the roller body. The valve stem 3 is movable relative to the roller body. As a preferred embodiment, the valve rod 3 of the present embodiment moves relative to the roller body in such a way that the valve rod 3 reciprocates along its longitudinal axis. Referring to fig. 1, each valve stem 3 is provided with through holes 5 arranged longitudinally along itself. When the valve rod 3 reciprocates along the longitudinal axis thereof, the through holes 5 on the valve rod 3 are opposite to or staggered from a group of air suction holes corresponding to the valve rod 3. When the through holes 5 on the valve rod 3 are opposite to a certain group of air suction holes, namely, in the state shown in fig. 5, all the group of air suction holes 2 corresponding to the valve rod 3 are communicated with the inner cavity 1 of the roller body through the through holes 5 on the valve rod 3, and at the moment, all the group of air suction holes 2 are switched to an air suction state. When the through holes 5 on the valve rod 3 are staggered with the air suction holes 2, namely, in the state shown in fig. 1, the whole group of air suction holes 2 corresponding to the valve rod 3 are all blocked by the valve rod 3 so that the whole group of air suction holes 2 are all blocked from the inner cavity 1 of the roller body, and at the moment, the whole group of air suction holes 2 corresponding to the valve rod 3 are all switched to the state of stopping air suction. Thus, the suction state of the entire set of suction holes can be rapidly switched by the reciprocating movement of the valve rod 3.
As an alternative, the valve stem 3 may be moved relative to the roller body in such a way that the valve stem 3 rotates about its longitudinal axis. Referring to fig. 6, fig. 6 is also a sectional view of A-A of fig. 1, but the cross section of the valve stem 3 is changed to be circular (accordingly, the structure of the valve stem 3 in fig. 1 should also be changed to correspond to the projected relationship of fig. 6, and the through hole 4 in fig. 3 should also be changed to be circular as the cross section of the valve stem 3, and no additional drawing is drawn). When the valve rod 3 rotates around the longitudinal axis of the valve rod to the angle that the through holes 5 of the valve rod are opposite to a certain group of air suction holes, namely, in the state shown in fig. 7, the whole group of air suction holes 2 corresponding to the valve rod 3 are communicated with the inner cavity 1 of the roller body through the through holes 5 on the valve rod 3; when the valve rod 3 rotates around its own longitudinal axis to an angle where the through holes 5 and the air suction holes 2 are staggered, namely, in a state shown in fig. 6, the whole set of air suction holes 2 corresponding to the valve rod 3 are all blocked by the valve rod 3, so that the whole set of air suction holes 2 are all blocked from the inner cavity 1 of the roller body. The valve rod 3 can rotate around its longitudinal axis either in a reciprocating manner or always in the same direction.
It should be noted that the respective valve rods 3 do not need to be operated synchronously, that is, the suction holes of different groups do not need to be switched synchronously. With the rotation of the suction roller, only one group or a plurality of groups of suction holes can be switched to the suction state at a certain time, and the suction holes of other groups are kept unchanged. The change law of the suction state depends on the equipment requirements of the suction roller.
It should be noted that different suction holes in the same group may be integrated into the same suction channel in the roll wall. For example, in the ring C of fig. 5, the three suction openings 2 merge into the same suction channel 7 in the roll wall, the suction channel 7 communicating with the roll interior 1.
The suction hole 2 may be formed directly through the roll wall to the roll body cavity 1 as shown in fig. 1, or may be formed through a curved passage in the roll wall to the roll body cavity 1.
The air suction hole and the through hole on the valve rod do not need to be one-to-one. For example, in the ring C of fig. 5, three suction holes 2 correspond to the same through hole 5 in the valve stem. Moreover, the through hole on the valve rod is not required to be opposite to the air suction hole, and the air suction hole and the through hole on the valve rod are in opposite relation as long as the air suction hole can be communicated with the inner cavity of the roller body through the through hole on the valve rod. For example, in the ring C of fig. 5, the rightmost one of the suction holes 2 is not facing the through hole 5 in the valve stem 3, but the two are already in an opposed relationship to each other.
It should be noted that, the suction holes in the same group of suction holes may be arranged in more than one row along the longitudinal direction of the roller body. The same set of suction holes may consist of two or more rows of suction holes arranged longitudinally, depending on the equipment requirements for which the suction roll is to be used.
The number of the suction holes grouped in the circumferential direction of the roll body is not limited to five groups in the illustrated embodiment, and the actual number of the suction holes may be at least one group, but not limited to a plurality of groups, depending on the equipment requirements of the suction roll. Each group of air suction holes corresponds to one valve rod. Each valve rod can be an integrally formed rod piece, or can be formed by splicing and fixing a plurality of sections of rod pieces into a whole.
As a specific embodiment, the entire outer circumferential surface of the suction roll may have only one suction hole, and the valve rod may have only one.
The roller body of the suction roller may be a single component or may be formed by combining a plurality of components. For example, a plurality of circular rings with the same or different diameters are assembled in the axial direction in a manner that the end faces are abutted against the end faces.
A paper processing apparatus according to the present utility model is shown in fig. 8. The paper processing equipment is provided with the suction roller and a driving mechanism for driving the valve rod to move relative to the roller body, so that the suction state of the suction roller is controlled. The driving mechanism can adopt a driving mode such as a motor, an air cylinder and the like.
In the preferred embodiment, the cam mechanism is used as the driving mechanism for driving the valve rod to move relative to the roller body. Referring to fig. 8, the cam mechanism has the valve rod 3 as a follower of the cam 6, and the valve rod 3 rotates together with the suction roller with respect to the cam 6, so that the valve rod 3 reciprocates along its own longitudinal axis by the action of the cam 6. The law of motion of the reciprocating movement of the valve stem 3 is determined by the curved shape of the working surface of the cam 6. The valve rod 3 and the suction roller may rotate together with the cam 6, or the suction roller may rotate, the cam 6 may be fixed, or the suction roller and the cam 6 may rotate at different speeds. When the paper processing equipment works, the inner cavity 1 of the roller body of the adsorption roller is connected with the vacuum equipment, and the vacuum equipment vacuumizes the inner cavity 1 of the roller body to keep negative pressure in the inner cavity 1 of the roller body. The paper processing apparatus shown in fig. 8 may be various kinds of paper processing apparatuses such as a paper towel folder and a rewinder.
It should be noted that the suction roll of the present utility model may have different structures when applied to different devices. For example, the suction roll used in the folding machine is also required to be provided with V-grooves and paper cutters on the outer peripheral surface of the roll body. These different structures corresponding to different devices are not relevant to the object of the present utility model and are not fully shown in the drawings of the present specification.
It should be noted that the suction roll according to the present utility model may have different names in different paper processing apparatuses. For example, it is customary to refer to a "rewinder" in the production of rewinders and a "folding roller" in the production of folded tissues.
The above examples merely represent a few embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of the utility model should be assessed as that of the appended claims.
Claims (6)
1. The utility model provides an adsorption roll, includes the roll body inner chamber that is used for with the vacuum equipment hookup, and the outer peripheral face of roll body is equipped with the suction port that link up to the roll body inner chamber, characterized by: the adsorption roller is connected with a valve rod which rotates along with the adsorption roller, the valve rod is blocked between the air suction hole and the inner cavity of the roller body, a through hole is formed in the valve rod, when the valve rod moves relative to the roller body to the position where the through hole is opposite to the air suction hole, the air suction hole is communicated with the inner cavity of the roller body through the through hole in the valve rod, and when the valve rod moves relative to the roller body to the position where the through hole is staggered from the air suction hole, the air suction hole is blocked by the valve rod so that the air suction hole is blocked from the inner cavity of the roller body.
2. A suction roll as claimed in claim 1, characterized in that: the outer peripheral surface of the roller body is provided with a plurality of suction holes, the suction holes are grouped along the circumferential direction of the roller body, each group of suction holes consists of a plurality of suction holes which are longitudinally arranged along the roller body, the valve rod corresponds to each group of suction holes one by one, each valve rod is blocked between a group of suction holes corresponding to the valve rod and the inner cavity of the roller body, a plurality of through holes are longitudinally arranged along the valve rod, when any one of the through holes on the valve rod moves to be opposite to a group of suction holes corresponding to the valve rod, the whole group of suction holes corresponding to the valve rod are all communicated with the inner cavity of the roller body through the through holes on the valve rod, and when any one of the through holes on the valve rod moves to be staggered from the group of suction holes corresponding to the valve rod, the whole group of suction holes corresponding to the valve rod are all blocked by the valve rod so that the whole group of suction holes are all blocked by the valve rod and the inner cavity of the roller body.
3. A suction roll as claimed in claim 1, characterized in that: the valve rod moves relative to the roller body in a manner that the valve rod reciprocates along the longitudinal axis of the valve rod.
4. A suction roll as claimed in claim 1, characterized in that: the cross section of the valve rod is circular, and the valve rod moves relative to the roller body in a mode that the valve rod rotates around the longitudinal axis of the valve rod.
5. Paper processing equipment, including the adsorption roll, characterized by: the suction roll is the suction roll according to any one of claims 1 to 4, the inner cavity of the roll body is connected with a vacuum device, the vacuum device vacuumizes the inner cavity of the roll body so that the inner cavity of the roll body maintains negative pressure, and a driving mechanism for driving the valve rod to move relative to the roll body is further arranged.
6. A paper processing apparatus as claimed in claim 5, wherein: the driving mechanism is a cam mechanism, the cam mechanism takes the valve rod as a follower of the cam, the valve rod rotates together with the adsorption roller relative to the cam, and the valve rod reciprocates along the longitudinal axis of the valve rod under the action of the cam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321999611.2U CN220617835U (en) | 2023-07-27 | 2023-07-27 | Adsorption roller and paper processing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321999611.2U CN220617835U (en) | 2023-07-27 | 2023-07-27 | Adsorption roller and paper processing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220617835U true CN220617835U (en) | 2024-03-19 |
Family
ID=90225091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321999611.2U Active CN220617835U (en) | 2023-07-27 | 2023-07-27 | Adsorption roller and paper processing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220617835U (en) |
-
2023
- 2023-07-27 CN CN202321999611.2U patent/CN220617835U/en active Active
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