Sample barrel positioning device for sampling machine turntable packaging machine

Abstract

The invention relates to the technical field of coal sampling and sample preparation equipment, in particular to a sample barrel positioning device for a turntable packaging machine of a sampling machine, which comprises a positioning unit, a supporting assembly and a limiting assembly arranged at the top of the supporting assembly; the supporting assembly is used for controlling the barrel changing position of the sample barrel; the limiting assembly is used for quickly positioning the position of the sample barrel and limiting the position of the sample barrel; the supporting assembly comprises a rotating disc, a connecting hole formed in the middle of the rotating disc and a rotating shaft embedded in the connecting hole. The device has the beneficial effects that the rotating disc and the rotating shaft are used for controlling the barrel changing position of the sample barrel, the side stop iron and the rear stop iron in the limiting assembly are arranged on the two side faces and the rear portion of the sample barrel respectively, a horn type stop iron surrounding structure is formed, three-face positioning can be conducted on the sample barrel, meanwhile, the fixing piece can conduct positioning on the upper portion, the lower portion, the front portion and the rear portion of the sample barrel at the same time, and operation is convenient. Therefore, the whole sampling process is more efficient and stable, and the working efficiency of the turntable packaging machine of the sampling machine is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of coal sampling and sample preparation equipment, and particularly to a sample bucket positioning device for a turntable encapsulator of a sampling machine. Background Art

[0002] As an important device in coal sampling and sample preparation equipment, most of the electronic sample buckets are arranged in a circular layout. In order to increase the sample bucket capacity as much as possible under the same turntable size, many manufacturers have made trapezoidal sample buckets. The trumpet shape of the trapezoidal sample bucket makes it more convenient to pick up and place the bucket. However, in addition to rotating and stopping in place, the sample bucket will perform operations such as opening and closing the lid, locking and unlocking, weighing, and discharging during operation. Therefore, the positioning of the coal sample bucket is very necessary.

[0003] Currently, most of the sample bucket positioning methods on the market adopt two methods: 1. Four side stops are arranged around the sampling bucket. For the convenience of picking up and placing, the front stop is arranged at a lower height. The sample bucket is lifted by hand at the front to pick up and place the bucket. This method has a simple structure and reliable operation. However, this method has no limit on the upward movement of the bucket and is not suitable for the lid opening method with a hinge connection to the bucket body. In addition, when the sample bucket is full of material, the total weight of the bucket is more than thirty kilograms, and it is not very convenient to carry.

[0004] 2. Some manufacturers use three-sided stops on the bucket body, and the front is open for the convenience of picking up and placing the bucket. An electromagnet is configured behind each bucket, and power is supplied through an electromagnetic slip ring on the main shaft. The magnet is charged during rotation and operation, and the magnet is powered off when picking up and placing the bucket. This method has a complex structure, is easy to damage, has a high maintenance cost, and the magnet is easy to adsorb impurities in the pulverized coal environment and needs to be cleaned regularly. Summary of the Invention

[0005] In view of the above or existing problems in the technology, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide a sample bucket positioning device for a turntable encapsulator of a sampling machine, which is easy to operate, has a low cost, and can meet the positioning requirements for the normal operation of the sample bucket on the turntable encapsulator, such as rotation, lid opening and closing, and picking up and placing the bucket.

[0007] To solve the above technical problems, the present invention provides the following technical solution: A sample bucket positioning device for a turntable encapsulator of a sampling machine, which includes a positioning unit, including a support assembly and a limit assembly provided on the top of the support assembly; The support assembly is used to control the bucket changing position of the sample bucket on the sampling machine turntable; the limit assembly is used to quickly position the sample bucket position and limit the movement of the sample bucket; The support assembly includes a turntable, a connection hole opened in the middle of the turntable, and a rotating shaft embedded in the connection hole; The limiting component includes several groups of side stoppers arranged in an annular array on the top of the turntable, coal sample buckets arranged at intervals between adjacent two groups of the side stoppers, a rear stopper arranged on the top of the turntable, and fixing pieces arranged between every two adjacent coal sample buckets; the rear stopper is respectively located at the back of several groups of the coal sample buckets; The fixing piece includes a clamping seat, two sets of clamping sleeves fixedly connected to the upper surface of the clamping seat, a retaining ring nested inside the two sets of clamping sleeves, a plug arranged inside the two sets of clamping sleeves, a compression spring arranged at the bottom of the plug, a slider slidably arranged inside the two sets of clamping sleeves, a clamping pin fixedly arranged at the bottom of the slider, and connecting blocks respectively fixedly arranged on the left and right sides of the coal sample bucket.

[0008] As a preferred scheme of the sample bucket positioning device for the turntable encapsulator of the sampling machine described in the present invention, wherein: the cross-sectional shape of the coal sample bucket is trapezoidal, and a bucket cover is arranged at the top of the coal sample bucket.

[0009] As a preferred scheme of the sample bucket positioning device for the turntable encapsulator of the sampling machine described in the present invention, wherein: the fixing piece further includes sliding openings opened on the outer sides of the two sets of clamping sleeves, handles respectively arranged on the outer sides of the two sets of sliders, and notches respectively opened on the right inner walls of the two sets of sliding openings; the front ends of the handles are slidably arranged inside the sliding openings, and the notches are used for fixing the positions of the handles.

[0010] As a preferred scheme of the sample bucket positioning device for the turntable encapsulator of the sampling machine described in the present invention, wherein: limiting holes penetrating downward are respectively opened at the tops of the two sets of connecting blocks, the limiting holes are used for the clamping pins to be inserted, the aperture of the limiting holes is equal to the diameter of the clamping pins, and the bottom shape of the clamping pins is conical to facilitate insertion into the limiting holes.

[0011] As a preferred scheme of the sample bucket positioning device for the turntable encapsulator of the sampling machine described in the present invention, wherein: grooves are respectively opened on the inner peripheral walls of the two sets of clamping sleeves, and the two sets of retaining rings are respectively nested inside the two sets of grooves for restricting the upward movement of the compression spring.

[0012] Advantages of the present invention: By providing a support component and a limit component, the present invention can control the bucket-changing position of the sample bucket by driving the turntable and the rotating shaft with an external driving force. The side stop iron and the rear stop iron in the limit component are respectively arranged on the two side surfaces and the rear of the coal sample bucket, forming a horn-shaped surrounding stop iron structure. When the sample bucket is placed, it can position the sample bucket on three sides simultaneously, and there is an opening in the front for replacing the sample bucket, ensuring the stability of the sample bucket during operations such as opening and closing the lid and weighing. At the same time, the clamping seat has the functions of positioning the sample bucket up and down, front and back. By driving the spring pin to insert into the connecting block on the side surface of the sample bucket with a compression spring, the position of the sample bucket can be restricted. Compared with the prior art, the present invention avoids the use of a complex electromagnet structure, reduces the maintenance cost and failure rate. At the same time, the positioning unit can effectively position sample buckets of different shapes, and the present invention has a simple structure and low cost, and can achieve rapid and accurate positioning of the sample bucket. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0014] Figure 1 It is a schematic diagram of the overall structure of a sample bucket positioning device for a sampling machine turntable encapsulator.

[0015] Figure 2 It is a top view of the overall structure of a sample bucket positioning device for a sampling machine turntable encapsulator.

[0016] Figure 3 It is a front view of the overall structure of a sample bucket positioning device for a sampling machine turntable encapsulator.

[0017] Figure 4 It is a schematic diagram of the overall structure of a fixing member of a sample bucket positioning device for a sampling machine turntable encapsulator.

[0018] Figure 5 It is an exploded view of the structure of a fixing member of a sample bucket positioning device for a sampling machine turntable encapsulator.

[0019] Figure 6 It is a sectional view of the structure of a fixing member of a sample bucket positioning device for a sampling machine turntable encapsulator.

[0020] Figure 7 It is a schematic diagram of the structure of a sampling bucket for a sampling machine turntable encapsulator.

[0021] In the figure: 1. Positioning unit; 11. Support component; 111. Turntable; 112. Connecting hole; 113. Rotating shaft; 12. Limiting component; 121. Side stop iron; 122. Coal sample bucket; 1221. Bucket lid; 123. Rear stop iron; 124. Fixing part; 1241. Card seat; 1242. Card sleeve; 12421. Groove; 1243. Retaining ring; 1244. Plug; 1245. Compression spring; 1246. Slide block; 1247. Pin; 1248. Connecting block; 12481. Limiting hole; 1249. Sliding opening; 12410. Handle; 12411. Notch. Detailed implementation manners

[0022] To make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given in conjunction with the accompanying drawings of the specification.

[0023] 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 extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0024] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that may be included in at least one implementation manner of the present invention. The "in one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or alternative embodiment that mutually excludes other embodiments.

[0025] Example 1, referring to Figures 1 to 7 , which is the first embodiment of the present invention. This embodiment provides a sample bucket positioning device for a sampling machine turntable encapsulator, which can quickly place and then position the sample bucket of the encapsulator, and perform upper and lower limit positioning on the sample bucket, including a positioning unit 1, which includes a support component 11 and a limiting component 12 provided on the top of the support component 11.

[0026] Furthermore, the support component 11 is used to control the bucket changing position of the sample bucket on the sampling machine turntable; the limiting component 12 is used to quickly position the sample bucket position and limit the movement of the sample bucket.

[0027] Furthermore, the support component 11 includes a turntable 111, a connecting hole 112 opened in the middle of the turntable 111, and a rotating shaft 113 embedded in the connecting hole 112.

[0028] It should be noted that the bottom end of the rotating shaft 113 is connected to an external driving device. The external driving device provides driving force to drive the rotation of the rotating shaft 113, and then drives the turntable 111 to rotate synchronously to change the position of the sample bucket on the sampling machine turntable. The external driving device is a motor.

[0029] Further, the limiting component 12 includes several groups of side stop irons 121 arranged in an annular array on the top of the turntable 111, coal sample buckets 122 arranged at intervals between adjacent two groups of side stop irons 121, a rear stop iron 123 arranged on the top of the turntable 111, and fixing members 124 arranged between every two adjacent coal sample buckets 122; the rear stop iron 123 is respectively located at the back of several groups of coal sample buckets 122; the side stop irons 121 on both sides of the coal sample bucket 122 and the rear stop iron 123 located behind the coal sample bucket 122 together form a horn-shaped stop iron structure with a front-side notch, and the coal sample bucket 122 can enter from the front-side notch to realize the convenient taking and placing of the sample bucket.

[0030] Further, the fixing member 124 includes a card seat 1241, two sets of card sleeves 1242 fixedly connected to the upper surface of the card seat 1241, a retaining ring 1243 nested inside the two sets of card sleeves 1242, a plug 1244 arranged inside the two sets of card sleeves 1242, a compression spring 1245 arranged at the bottom of the plug 1244, a slider 1246 slidably arranged inside the two sets of card sleeves 1242, a card 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 bucket 122.

[0031] Furthermore, a through hole for the card pin 1247 to slide is opened at the top of the card seat 1241. The card pin 1247 slides out of the card sleeve 1242 and passes through the through hole and inserts into the limit hole 12481 on the connecting block 1248 to connect and fix the coal sample bucket 122 and the card seat 1241.

[0032] Further, the cross-sectional shape of the coal sample bucket 122 is set as a trapezoid, and a bucket cover 1221 is arranged at the top of the coal sample bucket 122.

[0033] Further, the fixing member 124 also includes sliding openings 1249 opened on the outer sides of the two sets of card sleeves 1242, handles 12410 respectively arranged on the outer sides of the two sets of sliders 1246, and notches 12411 respectively opened on the right inner walls of the two sets of sliding openings 1249; the front end of the handle 12410 is slidably arranged 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 simultaneously dialed towards the notch 12411, 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 card pin 1247 into the card sleeve 1242, facilitating the placement and positioning of the coal sample bucket 122.

[0034] Further, limiting holes 12481 penetrating downward for the insertion of the clamping pins 1247 are formed at the tops of the two groups of connecting blocks 1248. The limiting holes 12481 are used for the insertion of the clamping pins 1247. The aperture diameter of the limiting holes 12481 is equal to the diameter of the clamping pins 1247. The bottom shape of the clamping pins 1247 is set as a cone convenient for insertion into the interior of the limiting holes 12481. The bottom of the clamping pins 1247 being set as a cone can play a guiding role when the clamping pins 1247 are inserted into the limiting holes 12481, ensuring the rapid and stable insertion of the clamping pins 1247.

[0035] Further, grooves 12421 are formed in the inner peripheral walls of the two groups of bushings 1242. The two groups of retaining rings 1243 are respectively nested inside the two groups of grooves 12421 for restricting the upward movement of the compression springs 1245.

[0036] It should be noted that several groups of side stop blocks 121 are arranged in an array along the circumferential direction of the turntable 111. The number of side stop blocks 121 is twice the number of coal sample buckets 122. When the number of coal sample buckets 122 is eight groups, the number of side stop blocks 121 is sixteen groups.

[0037] During use, the coal sample buckets 122 are evenly placed on the turntable 111 according to a certain quantity. The turntable 111 rotates along the central axis to achieve the purpose of changing buckets. Multiple groups of evenly distributed clamping seats 1241, rear stop blocks 123 and side stop blocks 121 are connected to the turntable 111. The rear stop blocks 123 and side stop blocks 121 are arranged in a horn shape, which can quickly push the bucket position in place and achieve three-sided positioning. The clamping seats 1241 achieve the front-back and up-down positioning of the bucket; when restricting and positioning the coal sample bucket 122, first lift the handle 12410 along the sliding opening 1249 and then dial it towards the notch 12411 at the same time to lock the lifted state of the handle 12410. The lifting and lowering of the clamping pin 1247 is achieved by lifting the internal handle 12410. The clamping pin 1247 is arranged in a cone shape, and the conical head can be pushed into the limiting hole 12481 on the connecting block 1248, and a certain error of dialing is allowed. The compression spring 1245 maintains sufficient spring force to press tightly into the limiting hole 12481 to achieve the positioning of the fixing member 124 to the coal sample bucket 122. The plug 1244 and the retaining ring 1243 achieve the upward restriction of the compression spring 1245.

[0038] In summary, through the cooperation of the support assembly 11 and the limiting assembly 12, the sample bucket can be quickly and accurately positioned, avoiding the shaking and displacement of the sample bucket during the working process, 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 more concise and reasonable, reducing the maintenance cost and failure rate. The design of the trapezoidal coal sample bucket 122 is convenient for taking and placing. At the same time, through the connection method between the clamping seat 1241 and the coal sample bucket 122, the up-down positioning of the coal sample bucket 122 is achieved, further enhancing the stability of the sample bucket.

[0039] Example 2. Refer to Figures 1 to 7 , which is the second embodiment of the present invention. Different from the first embodiment, it further includes an explanation of the positioning and use of the sample bucket on the encapsulator. In the previous embodiment, the method for positioning the sample bucket on the turntable encapsulator of the sampler includes the following steps: evenly place the coal sample bucket 122 above the turntable 111 and inside the side stop 121 and the rear stop 123.

[0040] Furthermore, push the coal sample bucket 122 to fit with the side stop 121 and the rear stop 123 to achieve quick three-sided positioning of the left, right, and rear sides of the coal sample bucket 122.

[0041] Furthermore, connect the card seat 1241 to the coal sample bucket 122 to achieve up-and-down positioning and limit the position of the coal sample bucket 122.

[0042] Furthermore, drive the entire limit component 12 and the coal sample bucket 122 to rotate to the specified bucket-changing position by rotating the rotating shaft 113, and then the bucket-changing operation can be performed.

[0043] Specifically, the connection between the card seat 1241 and the coal sample bucket 122 is achieved by driving the pin 1247 to slide along the inside of the bushing 1242 and insert into the inside of the limit hole 12481 by lifting the handle 12410, thus connecting the coal sample bucket 122 and the card seat 1241 in series to achieve up-and-down positioning.

[0044] During use, the coal sample bucket 122 is positioned by the fixing member 124. First, place the card seat 1241 in a suitable position so that the two bushings 1242 are respectively located between two adjacent coal sample buckets 122. The pin 1247 adjusts its position as the slider 1246 moves. By operating the handle 12410, the handle 12410 slides inside the sliding opening 1249. At this time, the pin 1247 inserts into the limit holes 12481 at the top of the connection blocks 1248 on the left and right sides of the coal sample bucket 122, completing the positioning and fixing of the coal sample bucket 122. When a bucket change is needed, the support component 11 is used to control the bucket-changing position of the sample bucket. After rotating to the appropriate position, stop the rotation of the turntable 111. At this time, the new coal sample bucket 122 reaches the specified bucket-changing position, and then the bucket-changing operation can be performed. During the entire positioning and bucket-changing process, the side stop 121 and the rear stop 123 in the limit component 12 work together to limit the position of the coal sample bucket 122, preventing the coal sample bucket 122 from shifting, tipping, etc. during the rotation of the turntable 111 or the bucket-changing operation, ensuring the stability and positioning accuracy of the sample bucket.

[0045] In summary, through steps such as evenly placing the coal sample bucket 122, pushing for positioning, connecting and fixing, and rotating for bucket changing, the quick positioning and bucket-changing operation of the coal sample bucket 122 are achieved, simplifying the work process. The method of this embodiment can quickly complete the positioning and bucket changing of the sample bucket, improving the sampling efficiency and reducing the operation time.

[0046] Example 3, referring to Figures 1 to 7 , which is the third embodiment of the present invention. This embodiment provides a sample bucket positioning device for a sampling machine turntable encapsulator, which can quickly position and place the sample bucket, improve the sampling efficiency, and includes a positioning unit 1, which includes a support assembly 11 and a limit assembly 12 provided on the top of the support assembly 11; Furthermore, the support assembly 11 is used to control the bucket changing position of the sample bucket on the sampling machine turntable; the limit assembly 12 is used to quickly position the sample bucket and limit the movement of the sample bucket; Furthermore, the support assembly 11 includes a turntable 111, a connection hole 112 opened in the middle of the turntable 111, and a rotating shaft 113 embedded in the connection hole 112.

[0047] It should be noted that the bottom end of the rotating shaft 113 is connected to an external driving device, and the external driving device provides driving force to drive the rotation of the rotating shaft 113, and then drives the synchronous rotation of the turntable 111 to change the bucket changing position of the sample bucket. The external driving device is a motor.

[0048] Furthermore, the limit assembly 12 includes a plurality of groups of side stoppers 121 arranged in an annular array on the top of the turntable 111, a coal sample bucket 122 arranged at intervals between two adjacent groups of side stoppers 121, a rear stopper 123 arranged on the top of the turntable 111, and a fixing member 124 arranged between every two adjacent coal sample buckets 122; the rear stopper 123 is respectively located on the back of a plurality of groups of coal sample buckets 122; the side stoppers 121 on both sides of the coal sample bucket 122 and the rear stopper 123 behind the coal sample bucket 122 together form a horn-shaped stopper structure with a front-side notch, and the coal sample bucket 122 can enter from the front-side notch to facilitate the taking and placing of the sample bucket.

[0049] Furthermore, the fixing member 124 includes a card seat 1241, two sets of card sleeves 1242 fixedly connected to the upper surface of the card seat 1241, a retaining ring 1243 nested inside the two sets of card sleeves 1242, a plug 1244 arranged inside the two sets of card sleeves 1242, a compression spring 1245 arranged at the bottom of the plug 1244, a slider 1246 slidably arranged inside the two sets of card sleeves 1242, a card pin 1247 fixedly arranged at the bottom of the slider 1246, and connection blocks 1248 respectively fixedly arranged on the left and right sides of the coal sample bucket 122.

[0050] Furthermore, a through hole for the card pin 1247 to slide is opened at the top of the card seat 1241, and the card pin 1247 slides out of the card sleeve 1242 and passes through the through hole and inserts into the limit hole 12481 on the connection block 1248 to connect and fix the coal sample bucket 122 and the card seat 1241.

[0051] Further, the cross-sectional shape of the coal sample bucket 122 is trapezoidal, and a bucket cover 1221 is provided at the top of the coal sample bucket 122.

[0052] Further, the fixing member 124 further includes sliding openings 1249 formed on the outer sides of the two sets of ferrules 1242, handles 12410 respectively provided on the outer sides of the two sets of sliders 1246, and notches 12411 respectively formed on the right inner walls of the two sets of sliding openings 1249; the front ends of the handles 12410 are slidably arranged inside the sliding openings 1249, and the notches 12411 are used to fix the positions of the handles 12410. It should be noted that when the handles 12410 are lifted and simultaneously dialed towards the notches 12411, the lifted state can be locked. At this time, the handles 12410 drive the sliders 1246 to move and compress the compression springs 1245, so as to slide the pins 1247 into the ferrules 1242, facilitating the placement and positioning of the coal sample bucket 122.

[0053] Further, limiting holes 12481 for inserting the pins 1247 are formed at the tops of the two sets of connecting blocks 1248 and penetrate downward. The limiting holes 12481 are used for inserting the pins 1247. The aperture of the limiting holes 12481 is equal to the diameter of the pins 1247. The bottom shape of the pins 1247 is set to be conical for facilitating insertion into the limiting holes 12481. The conical bottom of the pins 1247 can play a guiding role when the pins 1247 are inserted into the limiting holes 12481, ensuring the pins 1247 are inserted quickly and stably.

[0054] Further, grooves 12421 are formed on the inner peripheral walls of the two sets of ferrules 1242, and the two sets of retaining rings 1243 are respectively nested inside the two sets of grooves 12421 for restricting the upward movement of the compression springs 1245.

[0055] It should be noted that several sets of side stop irons 121 are arranged in an array along the circumferential direction of the turntable 111, and the number of side stop irons 121 is twice the number of coal sample buckets 122. When the number of coal sample buckets 122 is eight groups, the number of side stop irons 121 is sixteen groups.

[0056] In use, the coal sample bucket 122 is positioned by the fixing member 124. First, the clamping seat 1241 is placed at a suitable position so that the two sets of clamping sleeves 1242 are respectively located between two adjacent coal sample buckets 122. At this time, the retaining ring 1243 is nested inside the clamping sleeve 1242. The plug 1244 has a certain elastic support under the action of the compression spring 1245. The slider 1246 slides inside the clamping sleeve 1242, and the retaining pin 1247 adjusts its position as the slider 1246 moves. By operating the handle 12410, the handle 12410 slides inside the sliding opening 1249, thereby driving the slider 1246 to move. When it moves to a suitable position, the handle 12410 is snapped into the notch 12411 to fix the position of the slider 1246. At this time, the retaining pin 1247 is inserted into the limiting holes 12481 at the tops of the connecting blocks 1248 on the left and right sides of the coal sample bucket 122, completing the positioning and fixing of the coal sample bucket 122. The aperture of the limiting hole 12481 is equal to the diameter of the retaining pin 1247, and the conical shape at the bottom of the retaining pin 1247 facilitates the insertion of the retaining pin 1247 into the limiting hole 12481.

[0057] Furthermore, when the bucket needs to be replaced, the support assembly 11 is used to control the bucket replacement position of the sample bucket. The turntable 111 in the support assembly 11 rotates under the action of the rotating shaft 113. The rotating shaft 113 is installed inside the connecting hole 112 in the middle of the turntable 111, thereby driving the entire limiting assembly 12 and the coal sample bucket 122 to rotate. After rotating to a suitable position, the rotation of the turntable 111 is stopped. At this time, the new coal sample bucket 122 reaches the specified bucket replacement position, and the bucket replacement operation can be carried out. During the entire positioning and bucket replacement process, the side stop iron 121 and the rear stop iron 123 in the limiting assembly 12 act together to limit the position of the coal sample bucket 122, preventing the coal sample bucket 122 from shifting, tipping, etc. during the rotation of the turntable 111 or the bucket replacement operation, ensuring the stability and positioning accuracy of the sample bucket.

[0058] In summary, by using an external driving force to drive the turntable 111 and the rotating shaft 113, the bucket replacement position of the sample bucket can be controlled. The side stop iron 121 and the rear stop iron 123 in the limiting assembly 12 are respectively arranged on the two side faces and the rear of the coal sample bucket 122, forming a horn-shaped surrounding stop iron structure. When the sample bucket is placed, three-sided positioning of the sample bucket can be carried out simultaneously, and an opening is left in the front for the replacement of the sample bucket, ensuring the stability of the sample bucket during operations such as opening and closing the lid and weighing. At the same time, the clamping seat 1241 has the functions of positioning the sample bucket up and down, front and back. By using the compression spring 1245 to drive the retaining pin 1247 to insert into the connecting block 1248 on the side of the sample bucket, the position of the sample bucket can be restricted. The precise positioning of the device and the simple operation of the method are combined, making the entire sampling process more efficient and stable, and further improving the working efficiency and reliability of the sampling machine turntable packaging machine.

[0059] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and all should be covered within the scope of the claims of the present invention.

Claims

1. A sample barrel positioning device for a sampler turntable packaging machine, characterized in that: include, A positioning unit (1) comprising a support component (11) and a limit component (12) arranged on the top of the support component (11); The support assembly (11) is used to control the barrel changing position of the sample barrel on the sampler turntable; the limit 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) opened 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 groups of side stoppers (121) arranged in a circular array on the top of the rotating disk (111), coal sample barrels (122) arranged at intervals between two adjacent groups of the side stoppers (121), a rear stopper (123) arranged on the top of the rotating disk (111), and a fixing member (124) arranged between each two adjacent groups of the coal sample barrels (122); the rear stoppers (123) are respectively located on the backs of the plurality of groups of the coal sample barrels (122); The fixing member (124) comprises 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).

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

3. A sample barrel positioning device for a sampler turntable packaging machine as claimed in claim 2, characterized in that: The fixing member (124) further includes a sliding opening (1249) opened on the outside of the two groups of the clamping sleeves (1242), a handle (12410) respectively arranged on the outside of the two groups of the sliding blocks (1246), and a notch (12411) respectively opened on the right inner wall of the two groups of the sliding openings (1249); the front end of the handle (12410) is slidably arranged inside the sliding opening (1249), and the notch (12411) is used to fix the position of the handle (12410).

4. A sample barrel positioning device for a sampler turntable packaging machine as claimed in claim 3, characterized in that: The tops of the two groups of connecting blocks (1248) are provided with limiting holes (12481) penetrating downwards, and the limiting holes (12481) are used for inserting the bayonet (1247). The diameter of the limiting holes (12481) is equal to the diameter of the bayonet (1247), and the bottom shape of the bayonet (1247) is set to be conical so as to facilitate insertion into the limiting holes (12481).

5. A sample barrel positioning device for a sampler turntable packaging machine as claimed in claim 4, characterized in that: The inner walls of the two groups of the ferrules (1242) are provided with grooves (12421), and the two groups of the retaining rings (1243) are respectively nested inside the two groups of the grooves (12421) to limit the upward movement of the compression spring (1245).

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