Sampling device

Abstract

The utility model relates to a sampler which comprises a base and a support fixed on the base, a swing arm is hinged to the middle of the support, a plurality of blades forming a sampling area in an enclosing mode are fixed on the lower surface of the swing arm, and a driving mechanism driving the swing arm to press downwards is arranged on the upper portion of the support. The driving mechanism comprises a link block hinged to the middle of the swing arm, the middle of the link block protrudes, a lower pressing block is further hinged to the support, one end of the lower pressing block is hinged to the support, the other side of the lower pressing block is hinged to the upper end of the link block, when the lower pressing block swings around the hinged position of the lower pressing block and the support, the link block is driven to rotate, the link block downwards presses the swing arm, and the swing arm swings around the middle of the support. And the blade acts on the material placed on the base. The sample cutting device is compact in structure and easy to cut samples.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sampler. BACKGROUND

[0002] In the testing process of plastic welding equipment, experimental samples need to be used, which are plastic sheet structures, i.e. a piece of a customer's required size is cut from a plastic plate of different thickness as a sample. The existing sampling method is to cut by manually measuring the size, which is relatively cumbersome, and the use of an electric cutting device can easily cause the sample edge to overheat and deform.

[0003] Therefore, the applicant designs a sampler for easy sampling on a plastic plate. CONTENT OF THE UTILITY MODEL

[0004] To solve the problems of the existing plastic sheet sample, such as cumbersome process, not easy to operate, etc.

[0005] The technical scheme of the utility model is as follows: a sampler, comprising a base and a support fixed on the base, a swing arm is hinged in the middle of the support, a plurality of blades are fixed on the lower surface of the swing arm to form a sampling area, and a driving mechanism is arranged on the upper part of the support to drive the swing arm to press down.

[0006] The driving mechanism comprises a link block hinged in the middle of the swing arm, the middle of the link block is protruding, a pressing block is also hinged on the support, one end of the pressing block is hinged with the support, and the other end is hinged with the upper end of the link block. When the pressing block swings around the hinge with the support, it will drive the link block to rotate, the link block presses down the swing arm, the swing arm swings around the middle of the support, and the blades act on the material placed on the base.

[0007] The pressing block is fixedly connected with a pressing rod for driving the pressing block to rotate.

[0008] Preferably, the lower surface of the swing arm is fixed with a blade seat in the middle, and the blade is fixed on the circumferential side of the blade seat.

[0009] Preferably, the support and the pressing block are penetrated by a pluggable limiting rod, and the support and the pressing block have limiting through holes for the limiting rod to pass through.

[0010] Preferably, a protective cover is also fixed on the support or the base and wound around the circumferential side of the blade.

[0011] Preferably, a pad plate is arranged on the upper surface of the base for supporting the cutting raw material.

[0012] Preferably, a pressing plate is fixed on the base for limiting the pad plate, and the pressing plate is locked on the base by bolts.

[0013] Preferably, the pad plate is made of soft material.

[0014] Preferably, the middle part of the blade seat has a pin hole, a top rod is arranged in the pin hole, and the top rod is connected with the blade seat through a spring.

[0015] Preferably, the bottom part of the support penetrates through the base and is fixedly connected with a rib plate, the base and the rib plate have a communication opening for the insertion of the bottom part of the support, the bottom part of the support and the rib plate are fixed through a transversely penetrating pin or bolt, and the rib plate and the base are fixedly connected through a bolt.

[0016] Compared with the prior art, the utility model has the advantages that the utility model has the advantages of compact structure, driving the swing arm to move downward through the pressing block, and conveniently cutting and taking the plastic test piece through the blade, and the sample is complete and the size is accurate. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the embodiment of the utility model (without showing the protective cover);

[0018] Figure 2 It is a blade seat cross section structure schematic view of the embodiment of the utility model;

[0019] Figure 3 It is a base bottom structure schematic view of the embodiment of the utility model;

[0020] Figure 4 It is a whole structure schematic view of the embodiment of the utility model;

[0021] In the drawing: 10-base, 20-support, 30-swing arm, 301-blade, 310-linking block, 320-pressing block, 321-pressing rod, 322-limiting rod, 323-limiting through hole, 40-blade seat, 401-pin hole, 410-top rod, 420-spring, 50-protective cover, 510-pad plate, 60-pressing plate, 70-rib plate. DETAILED DESCRIPTION

[0022] The utility model will be explained in detail below in combination with the drawings and specific embodiments.

[0023] Referring to Figures 1-4 A sampler, comprising a base 10 and a support 20 fixed on the base 10, a swing arm 30 is hinged in the middle part of the support 20, the lower surface of the swing arm 30 is fixed with a plurality of blades 301 which enclose a sampling area, and the upper part of the support has a driving mechanism for driving the swing arm 30 to press downward;

[0024] The driving mechanism comprises a link block 310 hinged to the middle part of the swing arm 30, the middle part of the link block 310 is protruded, a pressing block 320 is further hinged to the support 20, one end of the pressing block 320 is hinged to the support 20, and the other side is hinged to the upper end of the link block 310, when the pressing block 320 swings, the swing arm 30 is driven to swing around the middle part of the support 20, and the link block 310 rotates around the support 20 to make the protrusion in the middle part of the link block abut against the swing arm 30, so that the blade 301 acts on the material placed on the base.

[0025] In order to facilitate operation, the pressing block 320 is fixedly connected with a pressing rod 321 for driving the pressing block to rotate.

[0026] In operation, the material to be cut is placed and fixed on the base 10, the pressing rod 321 is pressed to make the pressing block 320 rotate around the hinge between the pressing block 320 and the support 20, the link block 310 rotates synchronously due to the eccentric position of the hinge between the link block 310 and the pressing block 320, the link block 310 presses the swing arm 30, and the swing arm 30 is driven to swing downward around the hinge between the swing arm 30 and the support 20, when the protrusion in the middle part of the link block 310 abuts against the swing arm 30, the blade 301 at the lower part of the swing arm 30 acts on the material placed on the base 10, so that the material is cut. In the embodiment, the long pressing rod 321 can cut the material with less labor, and the swing arm 30 is hinged to the support 20 through a pin shaft or a bearing.

[0027] In an embodiment of the utility model, the lower surface middle part of swing arm 30 is fixed with blade seat 40, the circumferential side of blade seat 40 is fixed with blade 301.

[0028] In the embodiment, the blade seat 40 is rectangular, the blade edge of the blade 301 faces downward, and the blade 301 is arranged in a rectangular shape on the circumferential side of the blade seat 40, so that the sample formed by cutting the plastic plate is rectangular, and the blade 301 is locked on the blade seat 40 by bolts. The lower edge of the blade edge of the blade 301 and the lower surface of the blade seat 40 should be greater than the thickness of the cutting material to ensure that the blade can completely cut off the material.

[0029] In the embodiment, the blade seat has a pin hole 401 in the middle part, a jack 410 is arranged in the pin hole, the jack 410 is connected with the blade seat 40 through a spring 420, the top of the jack 410 has a flange limited to the upper part of the pin hole, and the jack 410 is connected with the pin hole 401 through the spring 420.

[0030] In order to realize the ejection of the cut material, the ejector rod 410 is extended below the pin hole 401 under the action of the spring 420 in the initial state, and is lower than the cutting edge of the blade, the ejector rod 410 is retracted into the pin hole 401 by overcoming the elastic force of the spring 420 in the process of contacting the material, then the blade is lowered to cut the plastic sheet, and the plastic is cut, after the cutting is completed, the spring drives the ejector rod 410 to eject the cut sample from the area surrounded by the blade, and the unloading is realized.

[0031] The support 20 and the lower pressing block 320 are penetrated by a pluggable limiting rod 322, and the support 20 and the lower pressing block 321 have limiting through holes 323 for the limiting rod to pass through.

[0032] During work, the limiting rod 322 needs to be pulled out of the limiting through hole 323 to release the limiting of the lower pressing block 320 and the support 20, and then the lower pressing rod 321 can drive the lower pressing block to rotate.

[0033] In order to prevent the cutting material from breaking out, in the embodiment, the support 20 is also fixed with a protective cover 50 around the circumferential side of the blade.

[0034] In the embodiment, the upper surface of the base is provided with a pad plate 510 for supporting the cutting raw material, and the material is placed on the pad plate during operation, and the pad plate 510 is a soft material, such as a rubber plate, a sponge, a foam pad, etc., after the blade 301 acts on the material placed on the pad plate. The purpose of using flexible material is to facilitate the cutting of the blade on the plate.

[0035] In an embodiment of the utility model, in order to facilitate the replacement of the pad plate 510, the base is fixed with a pressing plate 60 for limiting the pad plate 510, and the pressing plate 60 is locked on the base by bolts. When the material is installed, the pressing plate 60 is locked on the base 10 to press the pad plate, then the cutting material is placed on the pad plate 510, and the cutting is carried out by operating the lower pressing rod 321 and using the blade 301.

[0036] The sampler can cause damage to the pad plate when frequently used, and the connecting bolts between the pressing plate and the base need to be loosened when the damage is serious, and the pad plate is moved to stagger the seriously damaged position, so that the pad plate can have a longer service life.

[0037] In an embodiment of the utility model, in order to make the overall structure more stable, the support 20 is fixedly connected with a rib plate 70 below the base and penetrating the base, the base and the rib plate have a communication port for the bottom of the support to insert, and the bottom of the support 20 and the rib plate are fixed by transversely penetrating pins or bolts, and the rib plate and the base are fixedly connected by bolts.

[0038] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made according to the content of the present application specification and drawings, are also included in the patent protection scope of the present application.

Claims

1. A sampler characterized by, The device comprises a base and a support fixed on the base, a swing arm is hinged in the middle of the support, a plurality of blades are fixed on the lower surface of the swing arm to form a sampling area, and a driving mechanism is arranged on the upper part of the support to drive the swing arm to move downward; The driving mechanism comprises a link block hinged in the middle of the swing arm, a protrusion is arranged in the middle of the link block, a downward block is hinged on the upper part of the support, one end of the downward block is hinged with the support, and the other end is hinged with the upper end of the link block, when the downward block swings around the hinge with the support, the link block will be driven to rotate, the link block will press down the swing arm, and the swing arm will swing around the middle part of the support, so that the blades act on the material placed on the base.

2. A sampler according to claim 1, wherein, The downward block is fixedly connected with a downward rod for driving the downward block to rotate.

3. A sampler according to claim 1 or 2, wherein, The lower surface of the swing arm is fixedly connected with a blade seat, and the periphery of the blade seat is fixedly connected with the blades.

4. A sampler according to claim 1 or 2, wherein, The support and the downward block are penetrated by a pluggable limiting rod, and the support and the downward block have limiting through holes for the limiting rod to pass through.

5. A sampler according to claim 1 or 2, wherein, A protective cover is further fixed on the support or the base and wound around the periphery of the blades.

6. A sampler according to claim 1 or 2, wherein, A base plate is arranged on the upper surface of the base to support the raw material to be cut.

7. A sampler according to claim 6, wherein, A pressing plate is fixed on the base to limit the base plate, and the pressing plate is locked on the base by bolts.

8. A sampler according to claim 6, wherein, The base plate is made of soft material.

9. A sampler according to claim 3, wherein, A pin hole is arranged in the middle of the blade seat, a jack is arranged in the pin hole, and the jack is connected with the blade seat through a spring.

10. The sampler of claim 1, wherein, A rib plate is fixedly connected with the base through the support, the base and the rib plate have a communication port for the bottom of the support to insert, the bottom of the support and the rib plate are fixed by a transversely penetrating pin or bolt, and the rib plate and the base are fixedly connected by bolts.

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