A jam-proof quantitative sampler

Abstract

The application discloses a kind of anti-jamming quantitative sampler, including the base with support leg, and support piece is installed on the base, cutting device is arranged on the upper side of the support piece to cut off sample to paper, the cutting device includes a fixedly installed frame on the base, cutting knife is movably arranged on the frame in vertical direction, and operating handle is driven to reciprocate the cutting knife in vertical direction to cut off paper to be cut off;The sampler is further provided with a protective structure, the protective structure is provided with opening for airflow to pass through on both upper and lower sides and forms a channel for the cutting knife to pass through. Openings are respectively provided at the upper and lower ends of the protective structure, so that airflow can flow in the direction of the two openings during the cutting of the cutting knife towards the cutting hole, thereby effectively preventing paper jamming and allowing the paper sampling work to proceed smoothly.

Description

Technical Field

[0001] This utility model relates to the technical field of paper sampling equipment, specifically to a paper jam-proof quantitative sampler. Background Technology

[0002] Paper basis weight refers to the mass of paper per unit area, usually expressed as grams per square meter. Paper basis weight sampling typically involves obtaining a paper sample of a certain area or length and weighing it according to a specific procedure during the paper industry and quality control process. This allows for the calculation of key quality indicators such as paper density and basic weight. Basis weight is one of the most fundamental physical properties of paper, affecting all its physical and printability properties. Therefore, the accuracy of basis weight is particularly important. For example, basis weight is involved in the calculations for tests such as paper burst strength and ring crush tests.

[0003] Currently, paper basis weight samplers are devices used to cut paper into pieces of a predetermined area. The weight and density of these pieces are measured to determine the paper's basis weight. However, commercially available samplers typically include a support for the paper, a cutter for cutting the paper, and a protective cover for the cutter, placing the cutter within the cover to protect it after cutting the paper. However, during the paper cutting process, because the lower part of the cover has an opening corresponding to the fixing component, and the cutter is located inside the cover, the excessive force used to gradually cut the paper will gradually expel the air between the paper and the cover, thus creating a certain negative pressure inside the cover. Under the influence of negative pressure and static electricity, the cut paper is easily attracted inside the cover, causing paper jams and affecting the paper sampling operation. At the same time, during the paper sampling process, the sampling machine needs to be operated so that the cutter can cut the paper. Therefore, the sampling machine is prone to vibration during the sampling process, which can easily cause the sampling machine to move on the rigid support platform, affecting the sampling operation.

[0004] Therefore, a new technical solution is urgently needed to solve at least one of the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide an anti-paper jam quantitative sampler to solve at least one of the above-mentioned technical problems. The utility model adopts the following technical solution: A paper jam-proof quantitative sampler includes a base with supporting legs, a support member mounted on the base, and a cutting device disposed on the upper side of the support member for cutting and sampling paper. The cutting device includes a frame fixedly mounted on the base, a cutting blade movably mounted on the frame in a vertical direction, and an operating handle for driving the cutting blade to reciprocate in a vertical direction to cut the paper. The support member has a cutting hole adapted to the cutting blade. The sampler is also provided with a protective structure, which is disposed between the cutting blade and the cutting hole. The protective structure has openings on both the upper and lower sides for airflow and forms a channel for the cutting blade to pass through. A gap space is provided between the protective structure and the support member for paper to pass through.

[0006] Furthermore, the protective structure includes a protective belt, the two ends of which are movably mounted on two opposite sides of the frame, and the protective belt surrounds the outside of the cutting blade.

[0007] Furthermore, the protective belt includes a belt body that is looped around the outside of the cutting blade, and the two ends of the belt body are provided with connecting ends that are movably connected to the frame, and the width of the connecting ends is greater than the width of the belt body.

[0008] Furthermore, at least two vertically arranged and side-by-side mounting slots are provided on the connecting end, and fasteners pass through the mounting slots to fasten the connecting end to the frame.

[0009] Furthermore, the protective belt is made of a stiff metal or non-metal material, and after the connecting end is installed on the frame, the belt body surrounding the outside of the cutting blade can maintain a stable state.

[0010] Furthermore, the support leg is also provided with an anti-slip seat, which is located on the bottom of the support leg, and the bottom of the anti-slip seat is provided with a plurality of protrusions arranged in a matrix.

[0011] Furthermore, a height adjustment structure is provided on the anti-slip base to adjust the distance between the anti-slip base and the support leg.

[0012] Furthermore, the height adjustment structure includes a screw fixedly mounted on the top of the anti-slip seat, and at least one nut is threaded onto the screw, and a screw hole threaded onto the support leg is provided for threaded connection with the screw.

[0013] The beneficial effects of this utility model are as follows: During the quantitative sampling of paper cutting, the paper is passed through the gap between the support and the protective structure, and the support supports the paper. Pulling the operating handle drives the cutting blade to move towards the paper. At this time, the cutting blade passes through the channel between the protective structures and cuts the paper. The airflow caused by the punching action of the cutting blade flows along the channel of the protective structure and is discharged through two openings. This avoids the generation of negative pressure between the cutting blade and the paper, and prevents the cut paper from being absorbed by the cutting blade under negative pressure, causing paper blockage or jamming. This technical solution can effectively avoid paper blockage or jamming, thus ensuring the smoothness and efficiency of quantitative paper sampling.

[0014] This utility model provides an anti-jamming quantitative sampler. A protective structure is designed at the position where the cutting blade and the cutting hole are connected. The protective structure is designed to be open, that is, it is provided with openings at the upper and lower ends of the protective structure. This allows airflow to flow along the two openings during the cutting process when the cutting blade moves towards the cutting hole to cut the paper. This avoids the negative pressure between the cutting blade and the paper from adsorbing the paper, thus effectively preventing paper jams and ensuring that the paper sampling work can be carried out smoothly. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of this utility model after the protective strip is removed.

[0017] Figure 3 This is a side view of the present invention.

[0018] In the diagram: 100-base; 110-support leg; 120-support component; 200-cutting device; 210-frame; 220-cutting blade; 230-operating handle; 121-cutting hole; 300-protective belt; 310-belt body; 320-connecting end; 321-mounting groove; 130-anti-slip seat; 131-screw; 132-nut. Detailed Implementation

[0019] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0020] This utility model embodiment provides an anti-jamming quantitative sampler. A protective structure is designed at the position where the cutting blade 220 and the cutting hole 121 are connected. The protective structure is designed as an open structure, that is, openings are provided at the upper and lower ends of the protective structure. This allows airflow to flow along the two openings during the process of the cutting blade 220 moving towards the cutting hole 121 to cut the paper. This avoids the negative pressure generated between the cutting blade 220 and the paper, which would cause the paper to be adsorbed. This effectively avoids paper jamming and allows the paper sampling work to proceed smoothly.

[0021] like Figure 1-3 As shown in the figure, the present invention provides a paper jam prevention quantitative sampler, including a base 100 with a support leg 110, a support member 120 mounted on the base 100, and a cutting device 200 disposed on the upper side of the support member 120 for cutting and sampling paper. The cutting device 200 includes a frame 210 fixedly mounted on the base 100, a cutting blade 220 movably mounted on the frame 210 in the vertical direction, and an operating handle 230 for driving the cutting blade 220 to reciprocate in the vertical direction to cut the paper. A cutting hole 121 adapted to the cutting blade 220 is formed on the support member 120. A protective structure is also provided on the sampler. The protective structure is disposed between the cutting blade 220 and the cutting hole 121. The protective structure has openings on both the upper and lower sides for airflow and forms a channel for the cutting blade 220 to pass through. A gap space for paper to pass through is provided between the protective structure and the support member 120.

[0022] During the process of cutting and quantitatively sampling paper, the paper is passed through the gap between the support member 120 and the protective structure, and the support member 120 supports the paper. Pulling the operating handle 230 drives the cutting blade 220 to move towards the paper. At this time, the cutting blade 220 passes through the channel between the protective structures and cuts the paper. At this time, the airflow caused by the punching action of the cutting blade 220 flows along the channel of the protective structure and is discharged through the two openings. This avoids the generation of negative pressure between the cutting blade 220 and the paper, and prevents the cut paper from being absorbed by the cutting blade 220 under the action of negative pressure, causing paper blockage or jamming. This technical solution can effectively avoid paper blockage or jamming, thus ensuring the smoothness and sampling efficiency of quantitative paper sampling.

[0023] In this embodiment, as Figure 1 , 3As shown, the protective structure includes a protective belt 300, with both ends of the protective belt 300 movably mounted on two opposite sides of the frame 210, and the protective belt 300 surrounds the outside of the cutting blade 220. The protective belt 300 encloses the mutually pressing cutting blade 220 and the support member 120, thus protecting the mutually pressing structure and preventing foreign objects from entering the cutting area. Simultaneously, the surrounding structure allows for two interconnected openings on the upper and lower sides of the protective structure, as well as a channel for the cutting blade 220 to pass through. This allows air to circulate within the channel during the cutting process, preventing negative pressure from adsorbing the cut paper and causing paper jams that could affect sampling operations.

[0024] In this embodiment, to ensure the reliability of the protective belt 300 installation, the protective belt 300 includes a belt body 310 that is looped around the outside of the cutting blade 220. Both ends of the belt body 310 are provided with connecting ends 320 that are movably connected to the frame 210, and the width of the connecting ends 320 is greater than the width of the belt body 310. In this embodiment, the protective belt 300 is made of a stiff metal or non-metal material. After the connecting ends 320 are installed on the frame 210, the belt body 310 looped around the outside of the cutting blade 220 can maintain a stable state.

[0025] In this embodiment, the protective belt 300 is made of metal material, which allows the belt body 310 portion surrounding the cutter 220 to be suspended and ensures a certain degree of stability, thereby providing protection.

[0026] In this embodiment, in order to adjust the position of the protective strip 300, at least two vertically arranged and parallel mounting slots 321 are provided on the connecting end 320, and fasteners pass through the mounting slots 321 to fasten the connecting end 320 to the frame 210.

[0027] The fastener-connected end 320 can be mounted on the frame 210 via at least two mounting slots 321, ensuring the reliability of the connection end 320 after fixation and preventing wobbling. Simultaneously, after loosening the fasteners, the protective strip 300 can move vertically, and the fasteners slide within the mounting slots 321, allowing adjustment of the protective position of the protective strip 300 and improving the sampler's performance.

[0028] Meanwhile, in this embodiment, in order to improve the stability of the sampler during the sampling process, an anti-slip seat 130 is also provided on the support leg 110. The anti-slip seat 130 is located on the bottom of the support leg 110, and the bottom of the anti-slip seat 130 is provided with a number of protrusions arranged in a matrix.

[0029] In this embodiment, the anti-slip seat 130 is made of a plastic material with shock-absorbing properties, thereby having the ability to buffer and absorb shock. At the same time, by providing protrusions at the bottom of the anti-slip seat 130, the friction between the anti-slip seat 130 and the support platform can be increased, which can prevent the sampler from shifting during the sampling operation and affecting the sampling operation.

[0030] In this embodiment, to adjust the levelness of the sampler and ensure that sampling can be performed on a roughly level surface, a height adjustment structure is also provided on the anti-slip base 130 to adjust the distance between the anti-slip base 130 and the support leg 110. Specifically, as shown... Figure 3 As shown, the height adjustment structure includes a screw 131 fixedly mounted on the top of the anti-slip base 130, and at least one nut 132 threadedly connected to the screw 131. A screw hole 121 threadedly connected to the screw 131 is provided on the support leg 110. By rotating the screw, the level of the base 100 can be adjusted, ensuring that the surface of the base 100 remains approximately level. Tightening the nut 132 toward the support leg 110 locks the screw connection between the bolt and the support leg 110, preventing the bolt from rotating and affecting the levelness of the base 100 surface.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A paper jam-proof quantitative sampler, comprising a base with supporting legs, a support member mounted on the base, and a cutting device disposed on the upper side of the support member for cutting and sampling paper, the cutting device comprising a frame fixedly mounted on the base, a cutting blade movably mounted on the frame in a vertical direction, and an operating handle for driving the cutting blade to reciprocate in a vertical direction to cut the paper; characterized in that, The support member has a cutting hole adapted to the cutting blade; the sampler is also provided with a protective structure, which is located between the cutting blade and the cutting hole, and the protective structure has openings on both the upper and lower sides for airflow and forms a channel for the cutting blade to pass through. There is a gap space between the protective structure and the support member for paper to pass through.

2. The paper jam-proof quantitative sampler according to claim 1, characterized in that, The protective structure includes a protective belt, the two ends of which are movably mounted on two opposite sides of the frame, and the protective belt surrounds the outside of the cutting blade.

3. The paper jam-proof quantitative sampler according to claim 2, characterized in that, The protective belt includes a belt body with a loop around the outside of the cutting blade. Both ends of the belt body are provided with connecting ends that are movably connected to the frame, and the width of the connecting ends is greater than the width of the belt body.

4. The paper jam-proof quantitative sampler according to claim 3, characterized in that, At least two vertically arranged and side-by-side mounting slots are provided on the connecting end, and fasteners pass through the mounting slots to fasten the connecting end to the frame.

5. The paper jam-proof quantitative sampler according to claim 3, characterized in that, The protective belt is made of a stiff metal or non-metal material. After the connecting end is installed on the frame, the belt body surrounding the outside of the cutting blade can maintain a stable state.

6. The paper jam-proof quantitative sampler according to claim 1, characterized in that, The support leg is also provided with an anti-slip seat, which is located on the bottom of the support leg, and the bottom of the anti-slip seat is provided with a number of protrusions arranged in a matrix.

7. The paper jam-proof quantitative sampler according to claim 6, characterized in that, The anti-slip base is also equipped with a height adjustment structure to adjust the distance between the anti-slip base and the support leg.

8. A paper jam-proof quantitative sampler according to claim 7, characterized in that, The height adjustment structure includes a screw fixedly installed on the top of the anti-slip seat, and at least one nut is threaded onto the screw, and a screw hole threaded onto the support leg is provided for threaded connection with the screw.

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