Paper pressing device
By designing a paper pressing device including a bracket, roller and drive assembly, combined with a pressure adjustment unit and a chain transmission system, the problems of inconvenient maintenance and high cost of existing paper detection equipment are solved, and high reliability and low cost are achieved. Paper inspection.
Patent Information
- Application Number
- CN202420208359.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-26
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-01-26
Smart Images
Figure CN222225517U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of paper detection equipment, and in particular to a paper pressing device. Background Art
[0002] For paper mills to produce paper, the largest raw material must be pulp. Pulp is a fibrous substance made from plant fibers through different processing methods. Its processing methods include chemical methods, mechanical methods, and chemical mechanical methods. The plants used are also different, but the basic units of its lignin are divided into three types: guaiacyl structure, syringyl structure, and hydroxyphenyl structure. It is precisely because of the different processing methods and different raw materials of pulp that the pulp and paper produced have various problems. The bright spots of paper (i.e. transparent spots) are particularly prominent. The definition of transparent spots: small black-brown spots observed by side light, denser white spots observed through light, and clearly different from bubbles, pits, pinholes, etc. The most direct reason for its occurrence may be that the pulp contains more tree vessels and resins. It may also be caused by insufficient pulping during pulping. Bright spots will have a great impact on the later paper printing, so timely detection and targeted measures are required. As the leader of the domestic papermaking industry, our company's R&D laboratory has various inspection equipment to detect various problems of different types of paper products. However, the testing equipment is basically monopolized by foreign manufacturers and the prices are extremely high.
[0003] At present, the commonly used equipment and spare parts are all foreign products, which brings great inconvenience to the later maintenance. The pressure roller group is the core part. In the repeated paper pressing experiments, the high hardness particles in the paper will also cause damage to the roller surface, which is specifically manifested as pits or pits. The waiting period for replacing parts is long and the price is high. Utility Model Content
[0004] An embodiment of the present application provides a paper pressing device, which includes: a bracket, a first roller, a second roller and a driving component; the first roller and the second roller are respectively connected to the bracket, the first roller and the second roller are adjacently arranged, and the rotation axes of the first roller and the second roller are parallel, and the surfaces of the first roller and the second roller are rotatably abutted to press paper; the driving component is fixed to the bracket and is drivingly connected to at least one of the first roller and the second roller.
[0005] In some embodiments, the paper pressing device further includes a pressure regulating unit, which is respectively connected to the bracket and the second roller and is used to adjust the pressing force between the first roller and the second roller.
[0006] In some embodiments, the pressure regulating unit includes a first sliding member, a second sliding member, a first elastic member and a second elastic member, the first sliding member and the second sliding member are respectively connected to two ends of the second roller, the two ends of the first elastic member are respectively connected to the bracket with the first sliding member, and the two ends of the second elastic member are respectively connected to the bracket with the second sliding member.
[0007] In some embodiments, the pressure regulating unit also includes a first guide rod and a second guide rod, the first guide rod and the second guide rod are respectively connected to the bracket, the first sliding member is provided with a first sliding groove, the first guide rod is arranged in the first sliding groove, and the first sliding member can slide along the first guide rod; the second sliding member is provided with a second sliding groove, the second guide rod is arranged in the second sliding groove, and the second sliding member can slide along the second guide rod; the first guide rod and the second guide rod are arranged in parallel.
[0008] In some embodiments, the first elastic member and the second elastic member are both compression springs.
[0009] In some embodiments, the pressure regulating unit also includes a first adjusting rod and a second adjusting rod, the first adjusting rod is rotatably connected to the bracket, the end of the first adjusting rod is connected to the first sliding member via the first elastic member, the second adjusting rod is rotatably connected to the bracket, the end of the second adjusting rod is connected to the second sliding member via the second elastic member, and the clamping force between the first roller and the second roller is adjusted by adjusting the positions of the first adjusting rod and the second adjusting rod relative to the bracket.
[0010] In some embodiments, the first adjusting rod and the second adjusting rod are both screw rods, and the pressure adjusting unit also includes a first nut and a second nut, the first nut and the second nut are respectively fixed to the bracket, and the first adjusting rod and the second adjusting rod are respectively threadedly engaged with the first nut and the second nut.
[0011] In some embodiments, the pressure regulating unit further includes a first hand wheel and a second hand wheel, wherein the first hand wheel is connected to the first regulating rod, and the second hand wheel is connected to the second regulating rod.
[0012] In some embodiments, the first elastic member is sleeved on the first adjusting rod, and the second elastic member is sleeved on the second adjusting rod.
[0013] In some embodiments, the driving assembly includes a driving motor and a gearbox, and the driving motor and the gearbox, as well as the gearbox and the first roller, are connected via a chain drive.
[0014] The paper pressing device provided in the embodiment of the present application has the characteristics of simple structure, high reliability, convenient operation and low cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the paper pressing device of the present application;
[0017] Figure 2 yes Figure 1 A schematic diagram of a partial structure of a paper pressing device in an embodiment;
[0018] Figure 3 yes Figure 2 A schematic diagram of a partial structure of a paper pressing device in an embodiment;
[0019] Figure 4 yes Figure 3 Schematic diagram of the disassembly of the structure in the embodiment;
[0020] Figure 5 Schematic diagram of the structure of the drive assembly in this embodiment. DETAILED DESCRIPTION
[0021] The present application is further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only used to illustrate the present application, but are not intended to limit the scope of the present application. Similarly, the following examples are only some embodiments of the present application rather than all embodiments, and all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.
[0022] The terms "first", "second", and "third" in the embodiments of the present application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second", and "third" can expressly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In the embodiments of the present application, all directional indications (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. The terms "including" and "having" in the embodiments of the present application and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or components inherent to these processes, methods, products, or devices.
[0023] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0024] Please also read Figure 1 and Figure 2 , Figure 1 is a schematic diagram of the overall structure of an embodiment of the paper pressing device of the present application, Figure 2 yes Figure 1 Schematic diagram of the partial structure of the paper pressing device in the embodiment; the paper pressing device 100 in this embodiment includes but is not limited to the following structures: a bracket 110, a first roller 120, a second roller 130 and a driving assembly 140.
[0025] Specifically, the first roller 120 and the second roller 130 are respectively connected to the bracket 110, the first roller 120 and the second roller 130 are adjacently arranged, and the rotation axes of the first roller 120 and the second roller 130 are parallel, and the surfaces of the first roller 120 and the second roller 130 are rotated and abutted to roll the paper; wherein the surfaces of the first roller 120 and the second roller 130 can be processed by new processes such as hard chrome plating and surface grinding, so that the durability and test effect of the first roller 120 and the second roller 130 are improved.
[0026] The driving assembly 140 is fixed to the bracket 110 and is drivingly connected to at least one of the first roller 120 and the second roller 130 (the detailed structure will be described in detail later).
[0027] Optionally, the paper pressing device 100 in this embodiment further includes a pressure regulating unit 150 , which is connected to the bracket 110 and the second roller 130 , respectively, and is used to adjust the pressing force between the first roller 120 and the second roller 130 .
[0028] Please also refer to Figure 3 and Figure 4 , Figure 3 yes Figure 2 A schematic diagram of a partial structure of a paper pressing device in an embodiment, Figure 4 yes Figure 3 Schematic diagram of the disassembled structure in the embodiment. Optionally, the pressure regulating unit 150 in the present embodiment includes a first sliding member 151, a second sliding member 152, a first elastic member 153 and a second elastic member 154. The first sliding member 151 and the second sliding member 152 are respectively connected to the two ends of the second roller 130, and the two ends of the second roller 130 are respectively rotatably connected to the first sliding member 151 and the second sliding member 152. The middle part of the first sliding member 151 and the second sliding member 152 is equivalent to a bearing or a sleeve.
[0029] Optionally, both ends of the first elastic member 153 are connected to the bracket 110 via the first sliding member 151, and both ends of the second elastic member 154 are connected to the bracket 110 via the second sliding member 152. In this embodiment, both the first elastic member 153 and the second elastic member 154 can be compression springs.
[0030] Optionally, see Figure 3 and Figure 4In this embodiment, the pressure regulating unit 150 further includes a first guide rod 155 and a second guide rod 156, wherein the first guide rod 155 and the second guide rod 156 can be two and are respectively connected to the bracket 110; the first sliding member 151 is provided with a first sliding groove 1511 (the two sides can be respectively provided with first sliding grooves 1511, and correspond one to one with the first guide rod 155); the first guide rod 155 is arranged in the first sliding groove 1511, and the first sliding member 151 can slide along the first guide rod 155; the second sliding member 152 is provided with a second sliding groove 1521 (the two sides can be respectively provided with second sliding grooves 1521, and correspond one to one with the second guide rod 156); the second guide rod 156 is arranged in the second sliding groove 1521, and the second sliding member 152 can slide along the second guide rod 156; the first guide rod 155 and the second guide rod 156 are arranged in parallel.
[0031] Optionally, see Figure 3 and Figure 4 The pressure regulating unit 150 in this embodiment also includes a first regulating rod 157 and a second regulating rod 158. The first regulating rod 157 is rotatably connected to the bracket 110. The end of the first regulating rod 157 is connected to the first sliding member 151 through the first elastic member 153. The first elastic member 153 in this embodiment is sleeved on the first regulating rod 157 to position and guide the first elastic member 153.
[0032] The second adjusting rod 158 is rotatably connected to the bracket 110, and the end of the second adjusting rod 158 is connected to the second sliding member 152 via the second elastic member 154. Optionally, the second elastic member 154 in this embodiment is sleeved on the second adjusting rod 158 to position and guide the second elastic member 154. By adjusting the positions of the first adjusting rod 157 and the second adjusting rod 158 relative to the bracket 110, the pressing force between the first roller 120 and the second roller 130 can be adjusted.
[0033] Optionally, the pressure regulating unit 150 in this embodiment also includes a first nut 1571 and a second nut 1581, and the first nut 1571 and the second nut 1581 are respectively fixed to the bracket 110, wherein the first adjusting rod 157 and the second adjusting rod 158 can both be screws, and the first adjusting rod 157 and the second adjusting rod 158 are respectively threadedly engaged with the first nut 1571 and the second nut 1581.
[0034] Optionally, see Figure 3 and Figure 4The pressure regulating unit 150 in this embodiment also includes a first hand wheel 1572 and a second hand wheel 1582. The first hand wheel 1572 is connected to the first adjusting rod 157, and the second hand wheel 1582 is connected to the second adjusting rod 158. The first hand wheel 1572 and the second hand wheel 1582 may be provided with a rotating scale. In the process of rotating the hand wheel, the rotating scale reading is used to ensure that the rotation positions of both sides are the same, thereby making the pressure values at both ends of the first roller 120 and the second roller 130 the same.
[0035] See also Figure 5 , Figure 5 1 is a schematic diagram of the structure of the drive assembly in this embodiment, wherein the drive assembly 140 in this embodiment may include a drive motor 141 and a gearbox 142, and the drive motor 141 and the gearbox 142 and the first roller 120 may be connected by chain transmission, and the sprockets marked 143 in the figure may be sprockets, and the transmission chain is not shown in the figure. Of course, in some other embodiments, the drive motor 141 and the gearbox 142 and the gearbox 142 and the first roller 120 may be connected by other transmission methods, such as belts, etc., which are not specifically limited here.
[0036] Also, please continue to read Figure 1 The paper pressing device in this embodiment may also include an electrical control component 160 (such as a control button, a circuit board, etc.). The detailed features of this part are within the scope of understanding of those skilled in the art and will not be described in detail here.
[0037] The operation method of the paper pressing device in this embodiment is: the personnel first rotates the hand wheel on the screw rod to move the upper pressing roller (the second roller) downward, and the upper and lower pressing rollers are in contact. To ensure that the two sides rotate in unison, the rotation scale can be checked to ensure that the readings on both sides are consistent. Then the start button is pressed. At this time, the two rollers rotate, and the personnel then slowly puts the paper on the platform with the other hand and pushes it between the two rollers. The junction of the two rollers forms a linear pressure on the paper, so that impurities such as plant transport ducts and resins in the paper can be flattened, which is convenient for personnel to check under the light and see it clearly at a glance.
[0038] The paper pressing device provided in the embodiment of the present application has the characteristics of simple structure, small size, high reliability, convenient operation and low cost (the cost is only about 20% of imported equipment and parts), which is conducive to use in laboratory environment.
[0039] The above descriptions are only some embodiments of the present application, and do not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.
Claims
1. A paper pressing device, characterized in that: The paper pressing device includes: a bracket, a first roller, a second roller and a driving component; the first roller and the second roller are respectively connected to the bracket, the first roller and the second roller are arranged adjacent to each other, and the rotation axes of the first roller and the second roller are parallel, and the surfaces of the first roller and the second roller are rotated and abutted to press the paper; the driving component is fixed to the bracket and is drivingly connected to at least one of the first roller and the second roller.
2. The paper pressing device according to claim 1, characterized in that: The paper pressing device further comprises a pressure regulating unit, which is respectively connected to the bracket and the second roller and is used for regulating the pressing force between the first roller and the second roller.
3. The paper pressing device according to claim 2, characterized in that: The pressure regulating unit includes a first sliding member, a second sliding member, a first elastic member and a second elastic member. The first sliding member and the second sliding member are respectively connected to two ends of the second roller, the two ends of the first elastic member are respectively connected to the bracket with the first sliding member, and the two ends of the second elastic member are respectively connected to the bracket with the second sliding member.
4. The paper pressing device according to claim 3, characterized in that: The pressure regulating unit also includes a first guide rod and a second guide rod, the first guide rod and the second guide rod are respectively connected to the bracket, the first sliding member is provided with a first sliding groove, the first guide rod is arranged in the first sliding groove, and the first sliding member can slide along the first guide rod; the second sliding member is provided with a second sliding groove, the second guide rod is arranged in the second sliding groove, and the second sliding member can slide along the second guide rod; the first guide rod and the second guide rod are arranged in parallel.
5. The paper pressing device according to claim 4, characterized in that: The first elastic member and the second elastic member are both compression springs.
6. The paper pressing device according to claim 5, characterized in that: The pressure regulating unit also includes a first regulating rod and a second regulating rod, the first regulating rod is rotatably connected to the bracket, an end of the first regulating rod is connected to the first sliding member via the first elastic member, the second regulating rod is rotatably connected to the bracket, an end of the second regulating rod is connected to the second sliding member via the second elastic member, and the clamping force between the first roller and the second roller is adjusted by adjusting the positions of the first regulating rod and the second regulating rod relative to the bracket.
7. The paper pressing device according to claim 6, characterized in that: The first adjusting rod and the second adjusting rod are both screw rods, and the pressure adjusting unit also includes a first nut and a second nut. The first nut and the second nut are respectively fixed to the bracket, and the first adjusting rod and the second adjusting rod are respectively screwed with the first nut and the second nut.
8. The paper pressing device according to claim 7, characterized in that: The pressure regulating unit further comprises a first hand wheel and a second hand wheel, wherein the first hand wheel is connected to the first regulating rod, and the second hand wheel is connected to the second regulating rod.
9. The paper pressing device according to claim 6, characterized in that: The first elastic member is sleeved on the first adjusting rod, and the second elastic member is sleeved on the second adjusting rod.
10. The paper pressing device according to claim 1, characterized in that: The driving assembly includes a driving motor and a gearbox. The driving motor and the gearbox, as well as the gearbox and the first roller, are connected via chain transmission.