A package sample shrinking device

Abstract

The application discloses a sample wrapping and shrinking device which is used for wrapping a tin foil cup around a sample and comprises a support, a plurality of pressing blocks, wherein the number of the pressing blocks is six, one end of the six pressing blocks is arranged on an end surface of a through hole in a circumferential angle and is rotatably arranged, a first driving plate is arranged on a top surface of the pressing blocks, is rotatably arranged on the end surface, and is provided with a first strip-shaped protrusion which extends along an outer circumferential direction, a second driving plate is arranged on a bottom surface of the pressing blocks, is rotatably arranged on the end surface, and is provided with a second strip-shaped protrusion which extends along the outer circumferential direction, the first strip-shaped protrusion and the second strip-shaped protrusion are aligned in a vertical direction and are used for driving the pressing blocks to move towards a center of a circle or a circumferential direction, a first limiting plate is arranged on a top surface of the first driving plate, and a second limiting plate is arranged on a bottom surface of the second driving plate. The sample wrapping and shrinking device has the advantages of simple structure, easy production and processing, smooth sample wrapping process, reduced possibility of tin foil damage, good process performance and economy.

Description

TECHNICAL FIELD

[0001] The present application relates to the mechanical technical field, more particularly, to a sample wrapping and shrinking device. BACKGROUND

[0002] Coal quality detection detects elements of coal by an elemental analyzer, and then analyzes and judges the good or bad of coal quality. In order to ensure the accuracy of coal sample detection, tin foil cups 01 are usually used to wrap the test samples. When wrapping, a sample wrapping device is needed to completely wrap the tin foil cups 01 around the sample, and to completely discharge the air inside the tin foil cups 01.

[0003] The existing sample wrapping device, as shown in the accompanying drawings, includes a shrinking mechanism and a clamping mechanism. The shrinking mechanism includes a driver 02, a support plate 03, a push rod 04, a mounting plate 05, a guide base 06, a pressing block 07, and a cover plate 08. The driver 02 is connected to the mounting plate 05 by the support plate 03. One end of the push rod 04 is connected to the movable part of the driver 02, and the other end of the push rod 04 is connected to the driving pressing block of the pressing block 07. The guide base 06 is installed on the upper surface of the mounting plate 05. The pressing block 07 is installed in the guide base 06. Each pressing block 07 is matched with the guide surface in the guide base 06, and is arranged in the inner hole of the guide base 06. The cover plate 08 is installed on the upper surface of the guide base 06, and the tin foil cup 01 enters from the through hole in the cover plate 08. Figure 1 Figure 5 The clamping mechanism includes an opening and closing assembly 09, a first clamping block 010, a second clamping block 011, and a sample inlet tube 012. The movable part of the opening and closing assembly 09 is connected to the first clamping block 010 and the second clamping block 011. The first clamping block 010 and the second clamping block 011 are arranged below the guide base 06. The sample inlet tube 012 is arranged below the first clamping block 010 and the second clamping block 011.

[0004] ​The sample packaging process is as follows: the tin foil cup 01 containing the sample first passes through the through hole in the middle of the cover plate 08 into the multiple pressing blocks 07, and the bottom of the tin foil cup 01 is between the first clamping block 010 and the second clamping block 011. The opening and closing assembly 09 drives the first clamping block 010 and the second clamping block 011 to clamp the tin foil cup 01. The driver 02 drives the movement of the driving pressing plate 07 connected to the push rod 04, and the driving pressing plate 07 pushes the pressing plate 07 that moves relative to it, and the pressing plate 07 that moves relative to it. The pressing plate 07 is sequentially stressed, and finally all the pressing blocks 07 are moved along the guiding surface of the inner hole of the guide base 06, forming a nearly circular contraction to tightly press the tin foil cup 01, and completing the sample packaging. Subsequently, the driver 02 drives the movement of the driving pressing plate 07 connected to the push rod 04 to reset, and other pressing plates 07 are sequentially stressed to reset, completing the opening of the contraction mechanism. Finally, the opening and closing assembly 09 drives the first clamping block 010 and the second clamping block 011 to loosen the tin foil cup 01 packaged, which falls into the sample inlet pipe 012 under the action of gravity, completing the sample inlet.

[0005] However, the power of the pressing block 07 of the above-mentioned sample packaging device for completing the sample packaging action is single, and the power needs to be transmitted one by one, resulting in serious power loss. In addition, the multiple pressing blocks 07 cooperate with different guiding surfaces in the guide base 06, which not only has high machining difficulty and precision, but also is easy to cause wear and jam. In addition, the clamping mechanism of the above-mentioned sample packaging device is easy to have air remaining in the sample during the sample packaging process, which affects the accuracy of the experimental results. In addition, the tin foil cup 01 is very thin in material, and there is a great risk of tin foil damage during sample packaging, which causes pollution of the sample packaging device and cannot automatically perform the next sample packaging. There is a high probability of air remaining in the sample, which cannot guarantee the accuracy of the experimental results.

[0006] In summary, how to provide a sample packaging device with simple machining and stable reliability is a problem that needs to be solved by the technical personnel in the field at present. SUMMARY

[0007] Therefore, the purpose of the present application is to provide a sample packaging contraction device which can reduce the damage of tin foil during sample packaging and reduce the machining cost.

[0008] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0009] The tin foil cup is wrapped around the sample periphery, and the package sample shrinkage device comprises a support provided with a through hole; a pressing block, the pressing block is provided in a rhombus shape, the number of the pressing block is six, one end of the six pressing blocks is circumferentially arranged and rotatably arranged on the end face of the through hole; a first driving plate is arranged on the top surface of the pressing block and rotatably arranged on the end face, the first driving plate is provided with a first strip-shaped protrusion extending along the outer circumferential direction; a second driving plate is arranged on the bottom surface of the pressing block and rotatably arranged on the end face, the second driving plate is provided with a second strip-shaped protrusion extending along the outer circumferential direction, the first strip-shaped protrusion and the second strip-shaped protrusion are aligned in the up-down direction, and the first strip-shaped protrusion and the second strip-shaped protrusion are used to drive the pressing block to move towards the center or the circumferential direction; a first limiting plate is arranged on the top surface of the first driving plate and fixedly connected to the upper end surface of the support; and a second limiting plate is arranged on the bottom surface of the second driving plate and fixedly connected to the support.

[0010] The package sample shrinkage device further comprises a first driving shaft, the first driving plate is provided with a first waist-shaped hole, the second driving plate is provided with a second waist-shaped hole, one end of the pressing block towards the inner wall of the support is provided with a first circular hole, the first waist-shaped hole, the first circular hole and the second waist-shaped hole are aligned in the up-down direction, and the first driving shaft is inserted into the first waist-shaped hole, the first circular hole and the second waist-shaped hole.

[0011] The package sample shrinkage device is provided with a limiting shaft, the first limiting plate is provided with a third waist-shaped hole, the second limiting plate is provided with a fourth waist-shaped hole, the first driving plate is provided with a fifth waist-shaped hole, the second driving plate is provided with a sixth waist-shaped hole, the pressing block is provided with a second circular hole between the first circular hole and one end towards the center of the support, and the first driving shaft is sequentially inserted into the third waist-shaped hole, the fifth waist-shaped hole, the second circular hole, the fourth waist-shaped hole and the sixth waist-shaped hole.

[0012] The package sample shrinkage device further comprises a support, a gas cylinder and a pull rod, the support is arranged on the upper surface of the support, the gas cylinder is fixedly connected to the side wall of the support, and one end of the pull rod is fixedly connected to the piston rod of the gas cylinder.

[0013] The package sample shrinkage device is provided with a second driving shaft, one end of the pull rod is provided with a seventh waist-shaped hole, one end of the first strip-shaped protrusion extending outward is provided with a third circular hole, one end of the second strip-shaped protrusion extending outward is provided with a fourth circular hole, and the second driving shaft is sequentially inserted into the third circular hole, the fourth circular hole and the seventh waist-shaped hole.

[0014] The package sample shrinkage device is further provided with a sample guide pipe, one end of the sample guide pipe is arranged on the bottom surface of the second driving plate, and the other end of the sample guide pipe penetrates through the bottom plate of the support.

[0015] The package sample shrinkage device is provided with a ring-shaped spring, the ring-shaped spring is arranged between the pressing block and the inner wall of the support, the ring-shaped spring is sleeved on the periphery of the six pressing blocks, and the ring-shaped spring provides a radial force for folding the six pressing blocks.

[0016] The second limiting plate is provided with a first groove body in a radial recess, the upper end surface of the support is provided with a second groove body in a vertical direction, and the lower end surface of the support is provided with a third groove body in a vertical direction, and the first groove body, the second groove body and the third groove body are used to provide a movement space for the first strip-shaped protrusion and the second strip-shaped protrusion.

[0017] The first limiting plate and the first driving plate are both provided with a through hole for passing through the tin foil cup, and the second limiting plate and the second driving plate are both provided with a through hole for passing through the tin foil sample.

[0018] The six pressing blocks are each provided with a notch at one end close to the center of the support, and the notch is located on the side of the pressing block facing the second driving plate and extends in a vertical direction.

[0019] Compared with the prior art, the shrinkage device for a sample provided by the present application realizes the sample wrapping process through the closing and opening of the six diamond-shaped pressing blocks, one end of the pressing block surrounds a circumferential angle and is located in the support, the first driving plate is located on the top surface of the pressing block, the first limiting plate is located on the top surface of the first driving plate, and the second driving plate is located on the bottom surface of the pressing block. The cylinder controls the extension and retraction of the pull rod, the strip-shaped protrusions provided on the first driving plate and the second driving plate are connected through the second driving shaft, the first driving plate and the second driving plate are provided with a waist-shaped hole, the pressing block is provided with a circular hole, and the first driving shaft connects the waist-shaped hole and the circular hole. Through the above structure, the driving force of the cylinder can be transmitted to each pressing block, the power loss is reduced, and the pressing blocks have the same driving force, so that the pressing blocks do not interfere with each other, the pressing block combination is driven by circumferential motion, and discrete vortex line motion is performed, so that the operation is more smooth. In addition, the six pressing blocks are combined together under the radial force of the annular spring, so that the cooperation between the pressing blocks is more close, the gap is reduced, and the problem of sample clamping and sample sticking is avoided. The shrinkage device for a sample provided by the present application has the advantages of simple structure, easy production and processing, and can complete the work of wrapping the tin foil cup around the sample with only one set of driving mechanism. Not only the cost is reduced, the work efficiency is improved, but also the possibility of tin foil damage is reduced, and good processability and economy are achieved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only belong to the embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of the provided drawings.

[0021] Figure 1 The structure diagram of the shrinkage mechanism provided by the prior art;

[0022] Figure 2Plan view of the clamping mechanism provided by the prior art;

[0023] Figure 3 Sectional view of the bagging device provided by the prior art;

[0024] Figure 4 Schematic view of the shrink mechanism fully open provided by the prior art;

[0025] Figure 5 Schematic view of the shrink mechanism half closed provided by the prior art;

[0026] Figure 6 Exploded view of the bagging shrink device provided by the present invention;

[0027] Figure 7 Sectional view of the bagging shrink device provided by the present invention;

[0028] Figure 8 Plan view of the bagging shrink device provided by the present invention with the press fully closed;

[0029] Figure 9 Plan view of the bagging shrink device provided by the present invention with the press fully open and with a tin foil cup placed;

[0030] Figure 10 Plan view of the bagging shrink device provided by the present invention with the press half closed;

[0031] Figure 11 Plan view of the bagging shrink device provided by the present invention with the press half closed and with the first stopper hidden;

[0032] Figure 12 Plan view of the bagging shrink device provided by the present invention with the press half closed and with the first stopper and the first drive hidden;

[0033] Figure 13 Schematic view of the first stopper of the bagging shrink device provided by the present invention;

[0034] Figure 14 Schematic view of the first drive of the bagging shrink device provided by the present invention;

[0035] Figure 15 Schematic view of the second drive of the bagging shrink device provided by the present invention;

[0036] Figure 16 Schematic view of the second stopper of the bagging shrink device provided by the present invention;

[0037] Figure 17 Schematic view of the press of the bagging shrink device provided by the present invention;

[0038] Figure 18 A sectional view of the pressing block of the shrink-wrapping device provided by the present application;

[0039] Wherein:

[0040] 01-tin foil cup, 02-driver, 03-plate, 04-push rod, 05-mounting plate, 06-guide base, 07-pressing block, 08-cover plate, 09-opening and closing assembly, 010-first clamping block, 011-second clamping block, 012-sample tube,

[0041] 1-support, 11-base body,

[0042] 2-pressing block, 21-first circular hole, 22-second circular hole, 23-notch,

[0043] 3-first driving plate, 31-first bar-shaped protrusion, 311-third circular hole, 32-first waist-shaped hole, 33-fifth waist-shaped hole,

[0044] 4-second driving plate, 41-second bar-shaped protrusion, 411-fourth circular hole, 42-second waist-shaped hole, 43-sixth waist-shaped hole,

[0045] 5-first limiting plate, 51-third waist-shaped hole,

[0046] 6-second limiting plate, 61-fourth waist-shaped hole, 62-first groove,

[0047] 7-first driving shaft, 8-limiting shaft, 9-bracket, 10-cylinder, 101-piston rod, 11-pull rod, 111-seventh waist-shaped hole, 12-second driving shaft, 13-sample guide tube, 14-annular spring, 15-second groove, 16-third groove. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0049] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0050] The shrink-wrapping device provided by the embodiments of the present application can refer to the drawings attached to the specification Figure 6 to the attached Figure 18This device, used to wrap a tin foil cup 01 around a sample, includes: a support 1 with a through hole; six pressure blocks 2, each rhomboid in shape, with one end of each block forming a rounded corner and rotatably mounted on the end face of the through hole; a first drive plate 3, located on the top surface of the pressure blocks 2 and rotatably mounted on the end face, with a first strip-shaped protrusion 31 extending along the outer periphery; a second drive plate 4, located on the bottom surface of the pressure blocks 2 and rotatably mounted on the end face, with a second strip-shaped protrusion 41 extending along the outer periphery, the first and second strip-shaped protrusions 31 aligned vertically to drive the pressure blocks 2 to move towards the center or circumference; a first limiting plate 5, located on the top surface of the first drive plate 3 and fixedly connected to the upper end face of the support 1; and a second limiting plate 6, located on the bottom surface of the second drive plate 4 and fixedly connected to the support 1.

[0051] The support 1 is cylindrical, and the pressure block 2 is approximately rhomboid in shape. In this embodiment, there are six pressure blocks 2, each identical. One end of each pressure block 2 is in contact with the others, forming a circular angle, equivalent to a 60° apex angle for each pressure block 2. The pressure blocks 2 are positioned between the first drive plate 3 and the second drive plate 4. Both the first drive plate 3 and the second drive plate 4 have strip-shaped protrusions connected to the drive device, which rotate the first drive plate 3 and the second drive plate 4. Consequently, the first drive plate 3 and the second drive plate 4 drive the pressure blocks 2 to move. Each pressure block 2 is connected to a drive plate, thus the power of the drive device can be transmitted to each pressure block 1. This not only reduces power loss but also ensures that the pressure blocks 2 do not interfere with each other due to the identical driving force, resulting in smoother operation and reducing sample jamming.

[0052] When pressure block 2 is closed, refer to the instruction manual. Figure 8 For example, the six pressure blocks 2 are concentrated at one point, and when joined together, they form a circular angle, which can close the foil cup 01 containing the sample to achieve sample wrapping. When the pressure blocks 2 are fully opened, refer to the instruction manual. Figure 9 For example, one end of each of the six pressure blocks 2 contacts each other and forms a certain angle, eventually splicing together to form an approximately circular shape. The size of this shape is larger than the maximum outer diameter of the foil cup. Usually, when using the grippers to place the foil cup 01 on the first drive plate 3, the pressure blocks 2 are not disturbed. Their specific size is set according to the actual situation. Of course, the number of pressure blocks 2 can also be set to other quantities, as long as the top corners of all the pressure blocks 2 can form a circular angle. This article does not impose any restrictions.

[0053] The pressing block 2, the first driving plate 3 and the second driving plate 4 are arranged between the first limiting plate 5 and the second limiting plate 6, are arranged in the through hole of the support 1 and can move relative to the support 1, the first limiting plate 5 and the second limiting plate 6 are arranged on the two end faces of the support 1 respectively and are fixedly connected with the support 1 and are stationary relative to the support 1. The first driving plate 3 and the second driving plate 4 can limit the movement position of the pressing block 2, the first driving plate 3 and the second driving plate 4 and make the pressing block 2 move according to the discrete vortex line.

[0054] As shown in the accompanying drawings of the specification, Figure 7 The first driving plate 3 is provided with a first waist-shaped hole 32, the second driving plate 4 is provided with a second waist-shaped hole 42, one end of the pressing block 2 towards the inner wall of the support 1 is provided with a first circular hole 21, the first waist-shaped hole 32, the first circular hole 21 and the second waist-shaped hole 42 are aligned in the up-down direction, and the first driving shaft 7 is inserted into the three holes.

[0055] The first driving shaft 7 is used to connect the pressing block 2 and the first driving plate 3 and the second driving plate 4, that is, the first driving plate 3 and the second driving plate 4 drive the pressing block through the first driving shaft 7. Since the pressing block 2 moves in the discrete vortex line in the support 1, the first driving plate 3 is provided with the first waist-shaped hole 32, the second driving plate 4 is provided with the second waist-shaped hole 42, the two ends of the first driving shaft 7 are located in the first waist-shaped hole 32 and the second waist-shaped hole 42 respectively, and the middle part of the first driving shaft 7 is located in the first circular hole 21 of the pressing block 2. The first driving shaft 7 moves in the first waist-shaped hole 32 and the second waist-shaped hole 42 and can drive the pressing block 2 to move. Since there are six pressing blocks 2, each pressing block 2 is driven by the first driving shaft 7, therefore, the number of the first driving shaft 7 is also six, the first waist-shaped hole 32 provided on the first driving plate 3 and the second waist-shaped hole 42 provided on the second driving plate 4 are also equally divided into six in the circumference, when the first driving shaft 7 is installed, the first waist-shaped hole 32 and the second waist-shaped hole 42 are aligned upwards and downwards, and the first circular hole 21 is arranged at the position overlapping the first waist-shaped hole 32 and the second waist-shaped hole 42.

[0056] The bag sample shrinking device is provided with a limiting shaft 8, the first limiting plate 5 is provided with a third waist-shaped hole 51, the second limiting plate 6 is provided with a fourth waist-shaped hole 61, the first driving plate 3 is provided with a fifth waist-shaped hole 33, the second driving plate 4 is provided with a sixth waist-shaped hole 43, and the pressing block 2 is provided with a second circular hole 22 between the first circular hole 21 and one end towards the center of the support 1, and the first driving shaft 7 is sequentially inserted into the third waist-shaped hole 51, the fifth waist-shaped hole 33, the second circular hole 22, the sixth waist-shaped hole 43 and the fourth waist-shaped hole 61.

[0057] The two ends of the limiting shaft 8 are respectively located in the third waist-shaped hole 51 of the first limiting plate 5 and the fourth waist-shaped hole 61 of the second limiting plate 6, and the middle part of the limiting shaft 8 is sequentially arranged in the fifth waist-shaped hole 33 of the first driving plate 3, the second circular hole 22 of the pressing block 2 and the sixth waist-shaped hole 43 of the second driving plate 4. The arrangement of the limiting shaft 8 can connect the first limiting plate 5, the second limiting plate 6, the first driving plate 3, the pressing block 2 and the second driving plate 4, so that the above structure can be more tightly and stably combined. In order to prevent the limiting shaft 8 from moving in the vertical direction during the working process of the pattern shrinking device, the limiting shaft 8 can be arranged in the form of a pin shaft.

[0058] As shown in the accompanying drawings of the specification Figure 6 to the accompanying drawings Figure 9 The third waist-shaped hole 51 and the fourth waist-shaped hole 61 are equally divided on the first limiting plate 5 and the second limiting plate 6 based on the number of the pressing block 2, the width of the waist-shaped hole is arranged according to the diameter of the limiting shaft 8 inserted therein, the length of the waist-shaped hole is arranged according to the size of the pressing block 2 opening and closing, and the direction of the waist-shaped hole is arranged from the circumference of the circle to the center of the circle. When the pressing block 2 moves in the process of opening and closing, the limiting shaft 8 moves in the third waist-shaped hole 51 and the fourth waist-shaped hole 61. The fifth waist-shaped hole 33 arranged on the first driving plate 3 and the sixth waist-shaped hole 43 arranged on the second driving plate 4 are arranged to avoid the limiting shaft 8 when the first driving plate 3 and the second driving plate 4 move. When the limiting shaft 8 is installed, the third waist-shaped hole 51 and the fourth waist-shaped hole 61 are aligned vertically, the fifth waist-shaped hole 33 and the sixth waist-shaped hole 43 are aligned vertically, and the second circular hole 22 is arranged at a position overlapping the third waist-shaped hole 51, the fourth waist-shaped hole 61, the fifth waist-shaped hole 33 and the sixth waist-shaped hole 43.

[0059] The pattern shrinking device further comprises a support 9, a gas cylinder 10 and a pull rod 11, the support 1 is arranged on the upper surface of the support 9, the gas cylinder 10 is fixedly connected to the side wall of the support 9, and one end of the pull rod 11 is fixedly connected to the piston rod 101 of the gas cylinder 10. The support 9 provides a mounting position for the gas cylinder 10 and the support 1, the gas cylinder 10 serves as a driving device to provide power for driving the movement of the pressing block 2, the movable part of the gas cylinder 10, i.e. the piston rod 101, is fixedly connected to the pull rod 11, and the pull rod 11 is used to transmit power. The connection mode of the piston rod 101 and the pull rod 11 can be various, including threaded connection, pin connection, key connection, etc., and the driving device can also be in other forms such as an electric cylinder, a guide rail and a slider, etc. linear mechanism, which is not limited in this article.

[0060] The pattern shrinking device is provided with a second driving shaft 12, the other end of the pull rod 11 is provided with a seventh waist-shaped hole 111, one end of the first strip-shaped protrusion 31 extending outward is provided with a third circular hole 311, one end of the second strip-shaped protrusion 41 extending outward is provided with a fourth circular hole 411, and the second driving shaft 12 is sequentially inserted into the third circular hole 311, the fourth circular hole 411 and the seventh waist-shaped hole 111.

[0061] The second driving shaft 12 is used to connect the pull rod 11 and the first driving plate 3 and the second driving plate 4, and the two ends of the second driving shaft 12 are respectively arranged in the third circular hole 311 and the fourth circular hole 411, and the middle part of the second driving shaft 12 is located in the seventh waist-shaped hole 111. Since the pull rod 11 makes linear motion with the piston rod 101, and the power is transmitted to the first driving plate 3 and the second driving plate 4, the first driving plate 3 and the second driving plate 4 make rotary motion, and thus, when the cylinder 10 drives the piston rod 101 to make telescopic motion, the second driving shaft 12 moves in the seventh waist-shaped hole 111.

[0062] The package shrinking device is further provided with a guide pipe 13, one end of the guide pipe 13 is arranged on the bottom surface of the second driving plate 4, and the other end of the guide pipe 13 penetrates the bottom plate of the support 9. When the tin foil cup 01 package is completed and enters the guide pipe 13, the package is subsequently collected, and thus, one end of the guide pipe 13 penetrates the bottom surface of the second driving plate 4 through the second limiting plate 6, and the other end of the guide pipe 13 extends out of the support 9.

[0063] The package shrinking device is provided with a ring-shaped spring 14, the ring-shaped spring 14 is arranged between the pressing block 2 and the inner wall of the support 1, the ring-shaped spring 14 is sleeved on the periphery of the six pressing blocks 2, and provides a radial force for folding the six groups of pressing blocks 2.

[0064] As shown in the accompanying drawings of the specification, Figure 6 the ring-shaped spring 14 is fixed on the two ends of the first driving shaft 7 inserted in each pressing block 2, the ring-shaped spring 14 is respectively limited and fixed by the first driving plate 3 and the second driving plate 4 in the vertical direction, and no matter whether the pressing block 2 is closed or opened, the ring-shaped spring 14 can provide a radial force for folding the six pressing blocks 2 to the middle, so that the cooperation between the pressing blocks 2 is more compact, the gap is reduced, the pressing block 2 is more stable when making discrete spiral line motion, and the situation of clamping and blocking the package is avoided.

[0065] The second limiting plate 6 is recessed in the radial direction and provided with a first groove body 62, the upper end surface of the support 1 is provided with a second groove body 15 in the vertical direction, and the lower end surface of the support 1 is provided with a third groove body 16 in the vertical direction, and the first groove body 62, the second groove body 15 and the third groove body 16 are used to provide a movement space for the first strip-shaped protrusion 31 and the second strip-shaped protrusion 41. When the cylinder 10 drives the first driving plate 3 and the second driving plate 4 to rotate, the first strip-shaped protrusion 31 and the second strip-shaped protrusion 41 extend out of the support 1, and in order to provide a movement space for the first strip-shaped protrusion 31 and the second strip-shaped protrusion 41, the support 1 is provided with the second groove body 15 and the third groove body 16, and the lengths of the first groove body 62, the second groove body 15 and the third groove body 16 are set according to the rotation range of the first strip-shaped protrusion 31 and the second strip-shaped protrusion 41.

[0066] The first limiting plate 5 and the first driving plate 3 are provided with through holes for passing the tin foil cup 01, and the second limiting plate 6 and the second driving plate 4 are provided with through holes for passing the tin foil sample. Before the sample wrapping operation, the tin foil cup 01 needs to pass through the first limiting plate 5 and the first driving plate 3, and the pressing block 2 is fully opened, and the bottom of the tin foil cup 01 is placed on the top surface of the second driving plate 4. Therefore, the size of the through holes of the first limiting plate 5 and the first driving plate 3 is set according to the clamping jaw for grabbing the tin foil cup 01. After the sample wrapping operation is completed, the tin foil sample falls into the sample guide pipe 13 by its own gravity, the through hole of the second driving plate 4 is larger than the minimum diameter of the bottom surface of the tin foil cup 01, and is larger than the maximum diameter of the sample wrapped with tin foil. The upper end of the sample guide pipe 13 extends into the through hole of the second driving plate 4, so the outer diameter size of the through hole of the second driving plate 4 is set according to the diameter of the upper end of the sample guide pipe 13.

[0067] As shown in the description accompanying drawings Figure 7 , accompanying drawings Figure 17 and accompanying drawings Figure 18 , the six pressing blocks 2 are provided with notches 23 at one end close to the center of the support 1, the notches 23 are arranged on the side of the pressing block 2 facing the second driving plate 4, and extend in the vertical direction. Each pressing block 2 is provided with a notch 23 at the top corner, so that all the notches of the six pressing blocks 2 form a nearly cylindrical space after being fully closed. When the tin foil cup 01 is wrapped, the arrangement of the notches 23 can prevent the tin foil cup 01 from being squeezed out after the pressing block 2 is fully closed, thereby avoiding damage to the tin foil.

[0068] The working process of the sample wrapping and shrinking device provided by the present application is as follows: first, the execution component piston rod 101 of the driving device cylinder 10 extends together with the pull rod 11, and the second driving shaft 12 on the pull rod 11 drives the first driving plate 3 and the second driving plate 4 to rotate in the through hole of the support 1. Then, the axially inclined first waist-shaped hole 32 and the second waist-shaped hole 42 arranged on the first driving plate 3 and the second driving plate 4 drive the first driving shaft 7 inserted into the pressing block 2 to move away from or close to the center of the support, and perform discrete spiral line motion; the limiting shaft 8 installed on the pressing block 2 performs reciprocating motion in the waist-shaped hole arranged on the first limiting plate 5 and the second limiting plate 6. Finally, all the pressing blocks 2 perform mutual close discrete spiral line motion (similar to aperture opening and closing motion) under the action of the first driving shaft 7, the limiting shaft 8 and the annular spring 14, that is, a nearly circular opening and closing motion is formed.

[0069] When the piston rod 101 extends, the six pressing blocks 2 are opened to the maximum simultaneously under the action of the pull rod 11, and then the tin foil cup 01 containing the sample is put into the sample inlet hole between the first limiting plate 5 and the first driving plate 3, and placed on the upper end face of the second driving plate 4. When the piston rod 101 retracts, the six pressing blocks 2 are closed simultaneously under the action of the pull rod 11, and the tin foil cup 01 containing the sample is placed on the upper end face of the second driving plate 4, and the sample is placed in the center of the second driving plate 4. At this time, the piston rod 101 extends again, and the six pressing blocks 2 are opened to the maximum under the action of the pull rod 11, and the sample is placed in the sample dropping hole between the second driving plate 4 and the sample guide pipe 13 inserted in the second limiting plate 6, and the sample is dropped under the action of gravity, and the sample is put into the sample inlet hole. In this way, the sample packaging and shrinking device returns to the initial state, and the next sample packaging process can be entered.

[0070] It should be noted that in the present specification, the relationship terms such as first and second are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between the entities.

[0071] The sample packaging and shrinking device provided by the present application is described in detail above. In this paper, specific examples are applied to explain the principles and implementation modes of the present application, and the above description of the embodiments is only used to help understand the method of the present application and its core idea. It should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A sample shrink wrapping device for wrapping a tin foil cup (01) around a sample, characterized in that, The package sample shrinking device comprises a support (1) provided with a through hole; a plurality of pressing blocks (2) provided in a rhombic shape, the number of the pressing blocks (2) is six, one end of the six pressing blocks (2) is arranged on the end face of the through hole in a rotatable manner to form a circumferential angle; a first driving plate (3) arranged on the top surface of the pressing block (2) and rotatably arranged on the end face, the first driving plate (3) is provided with a first strip-shaped protrusion (31) extending along the outer circumferential direction; a second driving plate (4) arranged on the bottom surface of the pressing block (2) and rotatably arranged on the end face, the second driving plate (4) is provided with a second strip-shaped protrusion (41) extending along the outer circumferential direction, the first strip-shaped protrusion (31) and the second strip-shaped protrusion (41) are aligned in the up-down direction, and the first strip-shaped protrusion (31) and the second strip-shaped protrusion (41) are used for driving the pressing block (2) to move towards the center of the circle or the circumferential direction; a first limiting plate (5) arranged on the top surface of the first driving plate (3) and fixedly connected to the upper end surface of the support (1); and a second limiting plate (6) arranged on the bottom surface of the second driving plate (4) and fixedly connected to the support (1). The package sample shrinking device further comprises a first driving shaft (7), the first driving plate (3) is provided with a first waist-shaped hole (32), the second driving plate (4) is provided with a second waist-shaped hole (42), one end of the pressing block (2) facing the inner wall of the support (1) is provided with a first circular hole (21), the first waist-shaped hole (32), the first circular hole (21) and the second waist-shaped hole (42) are aligned in the up-down direction, and the first driving shaft (7) is inserted into the first waist-shaped hole (32), the first circular hole (21) and the second waist-shaped hole (42). The package sample shrinking device is provided with a limiting shaft (8), the first limiting plate (5) is provided with a third waist-shaped hole (51), the second limiting plate (6) is provided with a fourth waist-shaped hole (61), the first driving plate (3) is provided with a fifth waist-shaped hole (33), the second driving plate (4) is provided with a sixth waist-shaped hole (43), the pressing block (2) is provided with a second circular hole (22) between the first circular hole (21) and one end facing the center of the support (1), and the first driving shaft (7) is sequentially inserted into the third waist-shaped hole (51), the fifth waist-shaped hole (33), the second circular hole (22), the sixth waist-shaped hole (43) and the fourth waist-shaped hole (61). The package sample shrinking device further comprises a support (9), an air cylinder (10) and a pull rod (11), the support (1) is arranged on the upper surface of the support (9), the air cylinder (10) is fixedly connected to the side wall of the support (9), and one end of the pull rod (11) is fixedly connected to the piston rod (101) of the air cylinder (10). ​ ​ ​ ​ ​ ​ The package sample shrinkage device is provided with a second driving shaft (12), one end of the pull rod (11) is provided with a seventh waist-shaped hole (111), one end of the first strip-shaped protrusion (31) extending outward is provided with a third circular hole (311), one end of the second strip-shaped protrusion (41) extending outward is provided with a fourth circular hole (411), and the second driving shaft (12) is sequentially inserted into the third circular hole (311), the fourth circular hole (411) and the seventh waist-shaped hole (111).

2. The bag pattern shrinking apparatus according to claim 1, wherein The package sample shrinkage device is further provided with a sample guide pipe (13), one end of the sample guide pipe (13) is arranged on the bottom surface of the second driving plate (4), and the other end of the sample guide pipe (13) penetrates through the bottom plate of the support (9).

3. The bag pattern shrinking apparatus according to claim 1, wherein The package sample shrinkage device is provided with an annular spring (14), the annular spring (14) is arranged between the inner wall of the pressing block (2) and the support (1), the annular spring (14) is sleeved on the periphery of the six pressing blocks (2), and provides a radial force for folding the six pressing blocks (2).

4. The bag pattern shrinking apparatus according to claim 1, wherein The second limiting plate (6) is radially recessed and provided with a first groove body (62), the upper end surface of the support (1) is vertically provided with a second groove body (15), and the lower end surface of the support (1) is vertically provided with a third groove body (16), the first groove body (62), the second groove body (15) and the third groove body (16) are used for providing movement space for the first strip-shaped protrusion (31) and the second strip-shaped protrusion (41).

5. The bag pattern shrinking apparatus according to claim 1, wherein The first limiting plate (5) and the first driving plate (3) are both provided with through holes for penetrating the tin foil cup (01), and the second limiting plate (6) and the second driving plate (4) are both provided with through holes for penetrating the tin foil sample.

6. The bag pattern shrinking apparatus according to claim 1, wherein The six pressing blocks (2) are each provided with a notch (23) close to the center of the support (1), the notch (23) is arranged on the side of the pressing block (2) facing the second driving plate (4) and extends in the vertical direction.

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