A sample barrel positioning device for a sampler turntable packaging machine

Abstract

The present invention relates to the technical field of coal sampling equipment, in particular to a sample barrel positioning device for a sampler turntable packaging machine, comprising a positioning unit, a support assembly, and a limit assembly arranged on the top of the support assembly; the support assembly is used to control the barrel changing position of the sample barrel; the limit assembly is used to quickly locate the sample barrel position and limit the position of the sample barrel; the support assembly comprises a turntable, a connecting hole opened in the middle of the turntable, and a rotating shaft embedded in the connecting hole. The beneficial effect of the present invention is to use the turntable and the rotating shaft to control the barrel changing position of the sample barrel, and the side stop iron and the rear stop iron in the limit assembly are respectively arranged on the two sides and the rear of the sample barrel to form a trumpet-type surrounding stop iron structure, which can position the sample barrel on three sides, and at the same time, the fixing part has the function of positioning the sample barrel up, down, front and back, making the entire sampling process more efficient and stable, and improving the working efficiency of the sampler turntable packaging machine.

Description

Technical Field

[0001] The invention relates to the technical field of coal sampling equipment, in particular to a sample barrel positioning device for a sampler turntable packaging machine. Background Art

[0002] The packaging machine is an important equipment for coal sampling and preparation. Most electronic sample barrels are arranged in a circular pattern. In order to increase the sample barrel capacity as much as possible under the same turntable size, many manufacturers have made trapezoidal sample barrels. The trumpet shape of the trapezoidal sample barrel makes it more convenient to take and put the barrel. However, in addition to the rotation stop, the sample barrel will perform operations such as opening and closing the lid, opening and closing the lock, weighing and dropping materials during operation. Therefore, the positioning of the coal sample barrel is very necessary.

[0003] Currently, most of the sample barrel positioning on the market adopts two methods:

[0004] 1. The sampling barrel is surrounded by iron blocks on all sides. To facilitate taking and placing, the front iron blocks are shorter. People lift the front of the barrel to take and place the barrel. This method has a simple structure and reliable operation, but it has no restrictions on the upward movement of the barrel and is not suitable for opening the barrel cover connected to the barrel body with a hinge. In addition, when the sample barrel is full of materials, the barrel weighs more than 30 kilograms, which is not very convenient to carry.

[0005] 2. Some manufacturers use iron blocks on three sides of the barrel body. The front is open for easy removal of the barrel. An electromagnet is configured behind each barrel. The power is supplied through the electromagnetic slip ring on the main shaft. The magnet is energized during rotation and operation, and the magnet is de-energized when the barrel is removed. This method has a complex structure, is easily damaged, and has high maintenance costs. The magnet easily absorbs impurities in a coal powder environment and needs to be cleaned regularly. Summary of the Invention

[0006] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0007] Therefore, the purpose of the present invention is to provide a sample barrel positioning device for a sampling machine turntable packaging machine, which is easy to operate, low in cost, and can meet the normal positioning requirements of the turntable packaging machine such as sample barrel rotation, lid opening and closing, and barrel removal.

[0008] To solve the above technical problems, the present invention provides the following technical solutions: a sample barrel positioning device for a sampler turntable packaging machine, comprising a positioning unit, a support assembly, and a limit assembly arranged on the top of the support assembly;

[0009] The support assembly is used to control the barrel changing position of the sample barrel on the sampler turntable; the limit assembly is used to quickly locate the position of the sample barrel and limit the movement of the sample barrel;

[0010] The support assembly includes a turntable, a connecting hole provided in the middle of the turntable, and a rotating shaft embedded in the connecting hole;

[0011] The limiting assembly includes a plurality of side iron blocks arranged in a circular array on the top of the turntable, coal sample barrels spaced between two adjacent sets of the side iron blocks, a rear iron block arranged on the top of the turntable, and a fixing member arranged between each two adjacent sets of the coal sample barrels; the rear iron blocks are respectively located on the back of the plurality of sets of the coal sample barrels;

[0012] The fixing part includes a base, two groups of ferrules fixedly connected to the upper surface of the base, retaining rings nested inside the two groups of ferrules, plugs arranged inside the two groups of ferrules, compression springs arranged at the bottom of the plugs, sliders slidably arranged inside the two groups of ferrules, a pin fixedly arranged at the bottom of the slider, and connecting blocks fixedly arranged on the left and right sides of the coal sample barrel respectively.

[0013] As a preferred solution of the sample barrel positioning device for the sampler turntable packaging machine of the present invention, the cross-sectional shape of the coal sample barrel is set to be trapezoidal, and a barrel cover is provided on the top of the coal sample barrel.

[0014] As a preferred solution of the sample barrel positioning device for the sampling machine turntable packaging machine described in the present invention, the fixing part also includes sliding openings opened on the outside of the two groups of the ferrules, handles respectively arranged on the outside of the two groups of the sliding blocks, and notches respectively opened on the right inner walls of the two groups of the sliding openings; the front end of the handle is slidably arranged inside the sliding opening, and the notch is used to fix the position of the handle.

[0015] As a preferred solution of the sample barrel positioning device for the sampling machine turntable packaging machine described in the present invention, wherein: the tops of the two groups of connecting blocks are provided with downward-penetrating limiting holes, the limiting holes are used for the insertion of the bayonet pins, the aperture of the limiting holes is equal to the diameter of the bayonet pins, and the bottom shape of the bayonet pins is set to be conical for easy insertion into the limiting holes.

[0016] As a preferred solution of the sample barrel positioning device for the sampling machine turntable packaging machine described in the present invention, the inner walls of the two groups of the ferrules are provided with grooves, and the two groups of retaining rings are respectively nested inside the two groups of the grooves to limit the upward movement of the compression spring.

[0017] The beneficial effects of the present invention are as follows: the present invention sets a support component and a limit component, and uses an external driving force to drive the turntable and the rotating shaft to control the barrel changing position of the sample barrel. The side stop irons and the rear stop irons in the limit component are respectively arranged on the two sides and the rear of the coal sample barrel to form a trumpet-type surrounding stop iron structure. When the sample barrel is placed, the sample barrel can be positioned on three sides at the same time, and an opening is left in the front for the replacement of the sample barrel, ensuring the stability of the sample barrel during operations such as opening and closing the cover and weighing. At the same time, the holder has the function of positioning the sample barrel up, down, front and back. The compression spring is used to drive the pin to be inserted into the connecting block on the side of the sample barrel to limit the position of the sample barrel. Compared with the prior art, the present invention avoids the use of complex electromagnet structures, reduces maintenance costs and failure rates, and at the same time, the positioning unit can effectively position sample barrels of different shapes. The present invention has a simple structure and low cost, and can achieve fast and accurate positioning of the sample barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of the sample barrel positioning device used in the sampler turntable packaging machine.

[0020] Figure 2 This is a top view of the overall structure of the sample barrel positioning device used in the sampler turntable packaging machine.

[0021] Figure 3 This is a front view of the overall structure of the sample barrel positioning device used in the sampler turntable packaging machine.

[0022] Figure 4 This is a schematic diagram of the overall structure of the fixing parts of the sample barrel positioning device used in the sampler turntable packaging machine.

[0023] Figure 5 This is an exploded view of the fixing structure of the sample barrel positioning device used in the sampling machine turntable packaging machine.

[0024] Figure 6 This is a cross-sectional view of the fixing structure of the sample barrel positioning device used in the sampler turntable packaging machine.

[0025] Figure 7 This is a schematic diagram of the sampling barrel structure used in the sampling machine turntable packaging machine.

[0026] In the figure: 1. positioning unit; 11. supporting assembly; 111. turntable; 112. connecting hole; 113. rotating shaft; 12. limiting assembly; 121. side stop; 122. coal sample barrel; 1221. barrel cover; 123. rear stop; 124. fixing piece; 1241. holder; 1242. ferrule; 12421. groove; 1243. retaining ring; 1244. plug; 1245. compression spring; 1246. slider; 1247. bayonet; 1248. connecting block; 12481. limiting hole; 1249. sliding opening; 12410. handle; 12411. notch. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0030] Example 1, with reference to Figures 1 to 7 , which is the first embodiment of the present invention, provides a sample barrel positioning device for a sampling machine turntable packaging machine, which can quickly place and position the sample barrel of the packaging machine, and limit the upper and lower positioning of the sample barrel, including a positioning unit 1, including a support component 11, and a limit component 12 arranged on the top of the support component 11.

[0031] Furthermore, the support assembly 11 is used to control the barrel changing position of the sample barrel on the sampler turntable; the limiting assembly 12 is used to quickly locate the position of the sample barrel and limit the movement of the sample barrel.

[0032] Furthermore, the supporting assembly 11 includes a rotating disk 111 , a connecting hole 112 defined in the middle of the rotating disk 111 , and a rotating shaft 113 embedded in the connecting hole 112 .

[0033] It should be noted that the bottom end of the rotating shaft 113 is connected to an external driving device, which uses the external driving device to provide driving force to drive the rotating shaft 113 to rotate, and then drives the turntable 111 to rotate synchronously to change the barrel changing position of the sample barrel on the sampler turntable. The external driving device is a motor.

[0034] Furthermore, the limiting assembly 12 includes several groups of side stops 121 arranged in a circular array on the top of the turntable 111, coal sample barrels 122 spaced between two adjacent groups of side stops 121, rear stops 123 arranged on the top of the turntable 111, and fixing parts 124 arranged between each two adjacent groups of coal sample barrels 122; the rear stops 123 are respectively located on the backs of several groups of coal sample barrels 122; the side stops 121 located on both sides of the coal sample barrel 122 and the rear stop 123 located behind the coal sample barrel 122 together constitute a trumpet-type stop structure with a front notch, and the coal sample barrel 122 can be conveniently taken out and placed by entering from the front notch.

[0035] Furthermore, the fixing part 124 includes a base 1241, two groups of ferrules 1242 fixedly connected to the upper surface of the base 1241, a retaining ring 1243 nested inside the two groups of ferrules 1242, a plug 1244 arranged inside the two groups of ferrules 1242, a compression spring 1245 arranged at the bottom of the plug 1244, a slider 1246 slidably arranged inside the two groups of ferrules 1242, a pin 1247 fixedly arranged at the bottom of the slider 1246, and connecting blocks 1248 respectively fixedly arranged on the left and right sides of the coal sample barrel 122.

[0036] Furthermore, a through hole is provided on the top of the holder 1241 for the sliding of the latch pin 1247. The latch pin 1247 slides out of the sleeve 1242 and passes through the through hole to be inserted into the limiting hole 12481 on the connecting block 1248 to connect and fix the coal sample barrel 122 and the holder 1241.

[0037] Furthermore, the cross-sectional shape of the coal sample barrel 122 is set to be trapezoidal, and a barrel cover 1221 is provided on the top of the coal sample barrel 122 .

[0038] Furthermore, the fixing part 124 also includes a sliding opening 1249 opened on the outside of the two groups of ferrules 1242, a handle 12410 respectively arranged on the outside of the two groups of sliders 1246, and a notch 12411 respectively opened on the right inner wall of the two groups of sliding openings 1249; the front end of the handle 12410 is slidably set inside the sliding opening 1249, and the notch 12411 is used to fix the position of the handle 12410. It should be noted that when the handle 12410 is lifted and moved toward the notch 12411 at the same time, the lifted state can be locked. At this time, the handle 12410 drives the slider 1246 to move and compresses the compression spring 1245 to slide the pin 1247 into the ferrule 1242, so as to facilitate the placement and positioning of the coal sample barrel 122.

[0039] Furthermore, the tops of the two sets of connecting blocks 1248 are provided with limiting holes 12481 that pass through downward for the insertion of the bayonet 1247. The limiting holes 12481 are used for the insertion of the bayonet 1247. The aperture of the limiting holes 12481 is equal to the diameter of the bayonet 1247. The bottom shape of the bayonet 1247 is set to be a cone for easy insertion into the limiting hole 12481. The bottom of the bayonet 1247 is set to be conical, which can play a guiding role when the bayonet 1247 is inserted into the limiting hole 12481, thereby ensuring that the bayonet 1247 is inserted quickly and stably.

[0040] Furthermore, the inner circumferential walls of the two sets of ferrules 1242 are each provided with a groove 12421 , and the two sets of retaining rings 1243 are respectively nested inside the two sets of grooves 12421 to limit the upward movement of the compression spring 1245 .

[0041] It should be noted that several groups of side iron stops 121 are arranged in an array along the circumferential direction of the turntable 111. The number of side iron stops 121 is twice the number of coal sample barrels 122. When the number of coal sample barrels 122 is eight groups, the number of side iron stops 121 is sixteen groups.

[0042] When in use, the coal sample barrels 122 are evenly distributed on the turntable 111 according to a certain number, and the turntable 111 rotates along the central axis to realize the purpose of changing barrels. The turntable 111 is connected with multiple sets of evenly distributed clamping seats 1241, rear stop irons 123 and side stop irons 121. The rear stop irons 123 and side stop irons 121 are arranged in a trumpet shape, which can realize the rapid pushing of the barrel into place and realize three-sided positioning. The clamping seat 1241 realizes the front and back and up and down positioning of the barrel. When limiting the positioning of the coal sample barrel 122, first lift the handle 12410 along the sliding opening 1249 and then When the handle 12410 is pushed toward the notch 12411, the lifted state of the handle 12410 can be locked, and the lifting and lowering of the latch 1247 can be achieved by lifting the internal handle 12410. The latch 1247 has a conical layout, and the conical head can be pushed into the limiting hole 12481 on the connecting block 1248, and a certain error can be allowed for the push. The compression spring 1245 maintains sufficient spring force to press it into the limiting hole 12481 to realize the positioning of the coal sample barrel 122 by the fixing part 124, and the plug 1244 and the retaining ring 1243 realize the upward limitation of the compression spring 1245.

[0043] In summary, through the cooperation of the support component 11 and the limit component 12, the sample barrel can be positioned quickly and accurately, avoiding shaking and displacement of the sample barrel during work, and improving the accuracy and stability of sampling. Compared with the complex electromagnet structure in the prior art, the device structure of the present invention is simpler and more reasonable, reducing maintenance costs and failure rates. The trapezoidal coal sample barrel 122 is designed for easy taking and placing. At the same time, the connection between the holder 1241 and the coal sample barrel 122 realizes the upper and lower positioning of the coal sample barrel 122, further enhancing the stability of the sample barrel.

[0044] Example 2, reference Figures 1 to 7 This is the second embodiment of the present invention, which differs from the first embodiment in that it also includes a description of the positioning and use of the sample barrels on the packaging machine. In the previous embodiment, the sample barrel positioning method for the sampling machine turntable packaging machine includes the following steps: evenly distributing the coal sample barrels 122 above the turntable 111 and placing them inside the side iron stops 121 and rear iron stops 123.

[0045] Furthermore, the coal sample barrel 122 is pushed to fit with the side iron stop 121 and the rear iron stop 123 to achieve rapid positioning of the left, right and rear sides of the coal sample barrel 122 .

[0046] Furthermore, the connecting seat 1241 and the coal sample barrel 122 are connected to realize up and down positioning and limit the position of the coal sample barrel 122 .

[0047] Furthermore, the entire limiting assembly 12 and the coal sample barrel 122 are driven to rotate to a designated barrel changing position by rotating the rotating shaft 113, and the barrel changing operation can be performed.

[0048] Specifically, the connection between the holder 1241 and the coal sample barrel 122 is achieved by driving the latch pin 1247 to slide along the inside of the sleeve 1242 and insert into the limiting hole 12481 through the lifting handle 12410, so as to connect the coal sample barrel 122 and the holder 1241 in series to achieve up and down positioning.

[0049] When in use, the fixing member 124 is used to position the coal sample barrel 122. First, the clamping seat 1241 is placed in a suitable position so that the two sets of clamping sleeves 1242 are respectively located between the two adjacent sets of coal sample barrels 122. The clamping pin 1247 adjusts its position as the slider 1246 moves. By operating the handle 12410, the operating handle 12410 slides inside the sliding opening 1249. At this time, the clamping pin 1247 is inserted into the limiting hole 12481 on the top of the connecting block 1248 on the left and right sides of the coal sample barrel 122, completing the positioning of the coal sample barrel 122. The position is fixed. When the barrel needs to be changed, the support component 11 is used to control the barrel changing position of the sample barrel. After it is rotated to the appropriate position, the rotation of the turntable 111 is stopped. At this time, the new coal sample barrel 122 reaches the specified barrel changing position and the barrel changing operation can be performed. During the entire positioning and barrel changing process, the side stop iron 121 and the rear stop iron 123 in the limit component 12 work together to limit the position of the coal sample barrel 122, preventing the coal sample barrel 122 from shifting or tipping over during the rotation of the turntable 111 or the barrel changing operation, thereby ensuring the stability and positioning accuracy of the sample barrel.

[0050] In summary, by evenly placing the coal sample barrel 122, pushing for positioning, connecting and fixing, and rotating to change barrels, the coal sample barrel 122 is quickly positioned and replaced, simplifying the workflow. The method of this embodiment can quickly complete the positioning and replacement of the sample barrel, improve sampling efficiency, and reduce operation time.

[0051] Example 3, reference Figures 1 to 7 , which is the third embodiment of the present invention, provides a sample barrel positioning device for a sampler turntable packaging machine, which can quickly position and place the sample barrel to improve sampling efficiency, including a positioning unit 1, including a support component 11, and a limit component 12 arranged on the top of the support component 11;

[0052] Furthermore, the support assembly 11 is used to control the barrel changing position of the sample barrel on the sampler turntable; the limiting assembly 12 is used to quickly locate the sample barrel position and limit the movement of the sample barrel;

[0053] Furthermore, the supporting assembly 11 includes a rotating disk 111 , a connecting hole 112 defined in the middle of the rotating disk 111 , and a rotating shaft 113 embedded in the connecting hole 112 .

[0054] It should be noted that the bottom end of the rotating shaft 113 is connected to an external driving device, which uses the external driving device to provide driving force to drive the rotating shaft 113 to rotate, and then drives the turntable 111 to rotate synchronously to change the barrel changing position of the sample barrel. The external driving device is a motor.

[0055] Furthermore, the limiting assembly 12 includes several groups of side stops 121 arranged in a circular array on the top of the turntable 111, coal sample barrels 122 spaced between two adjacent groups of side stops 121, rear stops 123 arranged on the top of the turntable 111, and fixing parts 124 arranged between each two adjacent groups of coal sample barrels 122; the rear stops 123 are respectively located on the backs of several groups of coal sample barrels 122; the side stops 121 located on both sides of the coal sample barrel 122 and the rear stop 123 located behind the coal sample barrel 122 together form a trumpet-type stop structure with a front notch, and the coal sample barrel 122 can be conveniently taken out and placed by entering from the front notch.

[0056] Furthermore, the fixing part 124 includes a base 1241, two groups of ferrules 1242 fixedly connected to the upper surface of the base 1241, a retaining ring 1243 nested inside the two groups of ferrules 1242, a plug 1244 arranged inside the two groups of ferrules 1242, a compression spring 1245 arranged at the bottom of the plug 1244, a slider 1246 slidably arranged inside the two groups of ferrules 1242, a pin 1247 fixedly arranged at the bottom of the slider 1246, and connecting blocks 1248 respectively fixedly arranged on the left and right sides of the coal sample barrel 122.

[0057] Furthermore, a through hole is provided on the top of the holder 1241 for the sliding of the latch pin 1247. The latch pin 1247 slides out of the sleeve 1242 and passes through the through hole to be inserted into the limiting hole 12481 on the connecting block 1248 to connect and fix the coal sample barrel 122 and the holder 1241.

[0058] Furthermore, the cross-sectional shape of the coal sample barrel 122 is set to be trapezoidal, and a barrel cover 1221 is provided on the top of the coal sample barrel 122 .

[0059] Furthermore, the fixing part 124 also includes a sliding opening 1249 opened on the outside of the two groups of ferrules 1242, a handle 12410 respectively arranged on the outside of the two groups of sliders 1246, and a notch 12411 respectively opened on the right inner wall of the two groups of sliding openings 1249; the front end of the handle 12410 is slidably set inside the sliding opening 1249, and the notch 12411 is used to fix the position of the handle 12410. It should be noted that when the handle 12410 is lifted and moved toward the notch 12411 at the same time, the lifted state can be locked. At this time, the handle 12410 drives the slider 1246 to move and compresses the compression spring 1245 to slide the pin 1247 into the ferrule 1242, so as to facilitate the placement and positioning of the coal sample barrel 122.

[0060] Furthermore, the tops of the two sets of connecting blocks 1248 are provided with limiting holes 12481 that pass through downward for the insertion of the bayonet 1247. The limiting holes 12481 are used for the insertion of the bayonet 1247. The aperture of the limiting holes 12481 is equal to the diameter of the bayonet 1247. The bottom shape of the bayonet 1247 is set to be a cone for easy insertion into the limiting hole 12481. The bottom of the bayonet 1247 is set to be conical, which can play a guiding role when the bayonet 1247 is inserted into the limiting hole 12481, thereby ensuring that the bayonet 1247 is inserted quickly and stably.

[0061] Furthermore, the inner circumferential walls of the two sets of ferrules 1242 are each provided with a groove 12421 , and the two sets of retaining rings 1243 are respectively nested inside the two sets of grooves 12421 to limit the upward movement of the compression spring 1245 .

[0062] It should be noted that several groups of side iron stops 121 are arranged in an array along the circumferential direction of the turntable 111. The number of side iron stops 121 is twice the number of coal sample barrels 122. When the number of coal sample barrels 122 is eight groups, the number of side iron stops 121 is sixteen groups.

[0063] When in use, the coal sample barrel 122 is positioned using the fixing piece 124. The holder 1241 is first placed in a suitable position so that the two sets of sleeves 1242 are respectively located between the two adjacent sets of coal sample barrels 122. At this time, the retaining ring 1243 is nested in the sleeve 1242, and the plug 1244 has a certain elastic support under the action of the compression spring 1245. The slider 1246 slides inside the sleeve 1242, and the latch 1247 adjusts its position as the slider 1246 moves. By operating the handle 12410, the operating handle 12410 is moved on the slide. The movable opening 1249 slides inside, thereby driving the slider 1246 to move. When it moves to the appropriate position, the handle 12410 is inserted into the notch 12411 to fix the position of the slider 1246. At this time, the pin 1247 is inserted into the limiting hole 12481 on the top of the connecting block 1248 on the left and right sides of the coal sample barrel 122 to complete the positioning and fixation of the coal sample barrel 122. The aperture of the limiting hole 12481 is equal to the diameter of the pin 1247, and the conical shape of the bottom of the pin 1247 facilitates the insertion of the pin 1247 into the limiting hole 12481.

[0064] Furthermore, when it is necessary to change the barrel, the barrel changing position of the sample barrel is controlled by the support assembly 11, and the turntable 111 in the support assembly 11 rotates under the action of the rotating shaft 113, and the rotating shaft 113 is embedded in the connecting hole 112 in the middle of the turntable 111, thereby driving the entire limiting assembly 12 and the coal sample barrel 122 to rotate. After rotating to the appropriate position, the rotation of the turntable 111 is stopped. At this time, the new coal sample barrel 122 reaches the designated barrel changing position, and the barrel changing operation can be performed. During the entire positioning and barrel changing process, the side stop iron 121 and the rear stop iron 123 in the limiting assembly 12 work together to limit the position of the coal sample barrel 122, preventing the coal sample barrel 122 from shifting, tipping, etc. during the rotation of the turntable 111 or the barrel changing operation, thereby ensuring the stability and positioning accuracy of the sample barrel.

[0065] In summary, the external driving force is used to drive the turntable 111 and the rotating shaft 113 to control the barrel changing position of the sample barrel. The side stop iron 121 and the rear stop iron 123 in the limit assembly 12 are respectively arranged on the two sides and the rear of the coal sample barrel 122 to form a trumpet-type surrounding stop iron structure. When the sample barrel is placed, the sample barrel can be positioned on three sides at the same time, and an opening is left in the front for the replacement of the sample barrel, ensuring the stability of the sample barrel during operations such as opening and closing the cover and weighing. At the same time, the holder 1241 has the function of positioning the sample barrel up, down, front and back. The compression spring 1245 is used to drive the pin 1247 to be inserted into the connecting block 1248 on the side of the sample barrel, which can limit the position of the sample barrel. The combination of precise positioning of the device and simple operation of the method makes the entire sampling process more efficient and stable, further improving the working efficiency and reliability of the sampler turntable packaging machine.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications should be included in the scope of the claims of the present invention.

Claims

1. A sample barrel positioning device for a sampler turntable packaging machine, characterized by: include, A positioning unit (1) comprising a support assembly (11) and a limiting assembly (12) arranged on top of the support assembly (11); The support assembly (11) is used to control the barrel changing position of the sample barrel on the sampler turntable; the limiting assembly (12) is used to quickly locate the position of the sample barrel and limit the movement of the sample barrel; The support assembly (11) comprises a rotating disk (111), a connecting hole (112) provided in the middle of the rotating disk (111), and a rotating shaft (113) embedded in the connecting hole (112); The limiting assembly (12) comprises a plurality of side iron blocks (121) arranged in a circular array on the top of the turntable (111), coal sample barrels (122) spaced between two adjacent groups of the side iron blocks (121), a rear iron block (123) arranged on the top of the turntable (111), and a fixing member (124) arranged between each two adjacent groups of the coal sample barrels (122); the rear iron blocks (123) are respectively located on the back of the plurality of groups of the coal sample barrels (122); The fixing member (124) includes a holder (1241), two groups of ferrules (1242) fixedly connected to the upper surface of the holder (1241), a retaining ring (1243) nested inside the two groups of ferrules (1242), a plug (1244) arranged inside the two groups of ferrules (1242), a compression spring (1245) arranged at the bottom of the plug (1244), a slider (1246) slidably arranged inside the two groups of ferrules (1242), a locking pin (1247) fixedly arranged at the bottom of the slider (1246), and connecting blocks (1248) respectively fixedly arranged on the left and right sides of the coal sample barrel (122); The fixing member (124) further includes a sliding opening (1249) provided on the outside of the two groups of the clamping sleeves (1242), a handle (12410) provided on the outside of the two groups of the sliding blocks (1246), and a notch (12411) provided on the right inner wall of the two groups of the sliding openings (1249); the front end of the handle (12410) is slidably provided inside the sliding opening (1249), and the notch (12411) is used to fix the position of the handle (12410); The tops of the two groups of connecting blocks (1248) are each provided with a downwardly penetrating limiting hole (12481), the limiting hole (12481) being used for inserting the bayonet (1247), the aperture of the limiting hole (12481) being equal to the diameter of the bayonet (1247), and the bottom shape of the bayonet (1247) being configured to be tapered for easy insertion into the limiting hole (12481); The inner walls of the two sets of the ferrules (1242) are provided with grooves (12421), and the two sets of the retaining rings (1243) are respectively nested inside the two sets of the grooves (12421) to limit the upward movement of the compression spring (1245).

2. A sample barrel positioning device for a sampler turntable packaging machine according to claim 1, characterized in that: The cross-sectional shape of the coal sample barrel (122) is set to be trapezoidal, and a barrel cover (1221) is provided on the top of the coal sample barrel (122).

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