A fully automatic and continuous production of polishing salt weighing and packaging equipment

Abstract

The present invention belongs to the technical field of weighing and packaging, and in particular, relates to a fully automatic and continuous production of polishing salt weighing and packaging equipment; comprising a weighing hopper and a discharge hopper arranged at one end of the weighing hopper; characterized in that it also comprises: a weighing component, arranged at the bottom of the weighing hopper, for detecting the weight of the polishing salt; a pouring component, which is connected to the weighing component, for driving the weighing component and the weighing hopper to flip horizontally to an inclined state to pour the polishing salt; a packaging component, which is located at the discharge end of the discharge hopper, for receiving the poured polishing salt and packaging the polishing salt; a controller, which is electrically connected to the weighing component and the pouring component, and controls the operating state of the pouring component according to the weight of the polishing salt detected by the weighing component. The fully automatic and continuous production of polishing salt weighing and packaging equipment of the present invention provides a device that can detect that the polishing salt is weighed within a preset value range and automatically pour the polishing salt into a packaging bag for packaging.

Description

Technical Field

[0001] The invention belongs to the technical field of weighing and packaging, and in particular relates to a fully automatic and continuous production of polishing salt weighing and packaging equipment. Background Art

[0002] Polishing salt acts as a catalyst in the polishing process. It is usually added to the solution in the third step of the polishing process to quickly polish and remove burrs, making the surface quality of the workpiece smoother and reducing the roughness of the workpiece surface, thereby improving the production efficiency of the polishing process to a certain extent.

[0003] After the production of polishing salt is completed, it needs to be packaged. When packaging polishing salt, it is necessary to ensure that the weight of each bag of polishing salt is consistent so that the packaged polishing salt can be sold. Traditionally, polishing salt is packaged manually. The weight of polishing salt is uncontrollable and cannot be accurately quantified. In addition, it cannot be automatically weighed and packaged. At the same time, the production efficiency is low and the labor cost is high.

[0004] The current polishing salt weighing and packaging equipment can weigh the polishing salt before packaging to accurately package the polishing salt in a quantitative manner, improve production efficiency, and save labor costs. However, when weighing the polishing salt, the current polishing salt weighing and packaging equipment requires staff to observe whether the polishing salt reaches a preset value. When the polishing salt is weighed to the preset value, the staff transfers the weighed polishing salt to a packaging bag and then packages the polishing salt. This method of weighing and packaging the polishing salt has a disconnection operation in the middle, and cannot achieve automatic packaging of the weighed polishing salt. Transferring the weighed polishing salt to the packaging bag in the middle is not only time-consuming and labor-intensive, but also has high labor costs.

[0005] Therefore, in view of the above problems, a fully automatic and continuous production of polishing salt weighing and packaging equipment is provided, which can detect when the polishing salt is weighed within a preset value range and automatically pour the polishing salt into a packaging bag for packaging. Summary of the invention

[0006] The purpose of the present invention is to address the above-mentioned technical problems and to provide a fully automatic and continuous production of polishing salt weighing and packaging equipment that can detect when the polishing salt is weighed within a preset value range and automatically pour the polishing salt into a packaging bag for packaging.

[0007] In view of this, the present invention provides a fully automatic and continuous production of polishing salt weighing and packaging equipment, including a weighing hopper and a discharge hopper arranged at one end of the weighing hopper; characterized in that it also includes:

[0008] A weighing assembly, arranged at the bottom of the weighing hopper, for detecting the weight of the polishing salt;

[0009] A material pouring assembly is connected to the weighing assembly and is used to drive the weighing assembly and the weighing hopper to flip horizontally to an inclined state to pour the polishing salt;

[0010] A packaging component, which is located at the discharge end of the discharge hopper and is used to receive the poured polishing salt and package the polishing salt;

[0011] A controller is electrically connected to the weighing component and the pouring component, and controls the operation state of the pouring component according to the weight of the polishing salt detected by the weighing component;

[0012] When the polishing salt is weighed to a preset weight by the weighing component, the pouring component drives the weighing component to flip horizontally to an inclined state, so that the polishing salt flows from the weighing hopper along the discharge hopper into the packaging component.

[0013] In the above technical solution, further, the pouring assembly includes:

[0014] The first bracket has two first brackets, which are parallel and symmetrically distributed;

[0015] A first cylinder is arranged between the two first brackets, a piston rod of the first cylinder is connected to the weighing assembly, a controller is electrically connected to the first cylinder, and the controller is used to control the operating state of the first cylinder after receiving information detected by the weighing assembly;

[0016] A first support rod is disposed on the first bracket;

[0017] A hinged ball, rotatably disposed on one of the first support rods;

[0018] A first connecting plate is arranged at one end of the weighing assembly, and the first connecting plate is hingedly connected to the hinge ball;

[0019] A guide frame is arranged on the first support rod on the other side;

[0020] An arc-shaped groove is provided along the length direction of the guide frame;

[0021] The guide piece is arranged at one end of the weighing hopper by means of bolt connection, and the guide piece is slidably connected with the arc groove.

[0022] In any of the above technical solutions, further, the inner cavity of the weighing hopper has a discharge cavity, which extends from the inner cavity of the weighing hopper to pass through the discharge hopper, and the depth of the discharge cavity gradually becomes shallower and gradually becomes shallower in the discharge direction. The width of the discharge cavity extending in the discharge direction gradually decreases as the depth becomes shallower.

[0023] In any of the above technical solutions, further, the weighing component includes:

[0024] A weighing shell is arranged at the bottom of the weighing hopper;

[0025] A force-bearing plate is arranged inside the weighing shell;

[0026] The pressure sensor is arranged in the weighing shell and located at the bottom of the force-bearing plate. It is used to detect the weight of the polishing salt and send the detected information to the controller. The pressure sensor is electrically connected to the controller.

[0027] In any of the above technical solutions, further, the packaging assembly includes a base and a support assembly arranged on the base, for supporting the packaging bag, and the support assembly includes:

[0028] At least two electric slide rails are arranged in parallel on both sides of the base;

[0029] The electric slider is slidably connected with the electric slide rail through a moving part. The electric slider has two and is mirror-imaged between the two electric slide rails.

[0030] A second bracket is arranged between the outer sides of the two electric slide rails;

[0031] A slide bar, slidably disposed on the second bracket;

[0032] A support plate is arranged on the top of the slide bar;

[0033] The buffer spring is sleeved on the slide rod, one end of the buffer spring is pressed against the second bracket, and the other end is pressed against the support plate.

[0034] In any of the above technical solutions, further, the packaging assembly also includes a bag opening assembly for opening the packaging bag, and the bag opening assembly includes:

[0035] A first connecting rod, disposed at one end of the electric slider;

[0036] A rack, disposed on the first connecting rod;

[0037] A second connecting plate, disposed at one end of the second bracket;

[0038] A rotating shaft, rotatably disposed on both sides of the second connecting plate;

[0039] A gear is disposed on the rotating shaft, and the gear meshes with the rack;

[0040] A rotating member is arranged on the rotating shaft;

[0041] A guide plate, arranged at one end of the rotating member;

[0042] A plurality of suction cups are provided on opposite sides of the two guide plates and distributed along the length direction of the guide plates, and the connection ends of the suction cups and the guide plates pass through and extend out of the guide plates;

[0043] A pull rod is slidably arranged on one side of the suction cup on the same side;

[0044] The return spring is arranged on the pull rod and connected with the guide plate.

[0045] In any of the above technical solutions, further, the packaging component also includes a sealing component for sealing the packaging bag of the polishing salt, and the sealing component includes:

[0046] The second support rod has two rods and is arranged in parallel at one end of the base;

[0047] A pressure plate, disposed between one ends of the two second support rods;

[0048] A third bracket is arranged between the outer sides of the two electric slide rails;

[0049] A second cylinder is disposed on a third bracket;

[0050] The sealer is arranged on the piston rod of the second cylinder, and the sealer is arranged opposite to the pressing plate;

[0051] The guide rod is arranged at one end of the sealer, and the guide rod is slidably connected to the third bracket.

[0052] In any of the above technical solutions, further, a positioning component is included for positioning the packaging bag; the positioning component includes:

[0053] There are multiple support rods, which are arranged on both sides of the support plate, and the support rods are slidably connected to the support plate;

[0054] A positioning plate is arranged on the support rod on the same side, and the positioning plate is slidably connected to the support plate;

[0055] A compression spring is sleeved on the support rod and located between the positioning plate and the support plate;

[0056] The second connecting rod is arranged on both sides of the positioning plate;

[0057] A contact plate, disposed between two second connecting rods on the same side;

[0058] The moving rod is arranged on the top of the electric slide block, and the moving rod is pressed against the contact plate.

[0059] In any of the above technical solutions, further, it also includes a feeding assembly for feeding the polishing salt;

[0060] The blanking components include:

[0061] A sleeve frame, arranged on the top of the guide frame;

[0062] The lower bin is arranged in the sleeve frame and is located above the weighing hopper.

[0063] In any of the above technical solutions, further, a fully automatic and continuous production method for weighing and packaging polishing salt comprises the following steps:

[0064] S1, the finished polishing salt is discharged into the weighing hopper, and is weighed by the weighing component. If it is within the preset value range, it enters S2;

[0065] S2, the controller controls the operation state of the first cylinder after the weight of the polishing salt detected by the weighing assembly reaches within the preset value range. The first cylinder is started first to drive the weighing hopper to move upward. One end of the weighing hopper is hinged by a hinge ball, and the other end is moved along the arc groove by a guide member, so that the weighing hopper is horizontally flipped to a tilted state, and finally the polishing salt flows out of the weighing hopper;

[0066] S3, the bag opening component starts to work. Under normal conditions, the suction cups on both sides are closed. The packaging bag is placed on the support plate, and the suction cups on both sides absorb the two sides of the packaging bag. The electric slide rail is started, and the electric slider moves horizontally along the electric slide rail through the moving part. The electric slider drives the rack to move, and the gear drives the rotating shaft to rotate backward, so that the suction cups on both sides move outward and open. The suction cups open the packaging bag and firmly absorb the packaging bag to be in an open state;

[0067] S4, after the packaging bag located below the discharge hopper is opened, the polishing salt falls into the packaging bag. After the feeding is completed, the packaging bag is naturally pressed down by gravity, the buffer spring is compressed, and the packaging bag moves downward until the opening of the packaging bag faces the sealer. The sealing assembly is started, and the second cylinder is used to push the sealer to move to the opening of the packaging bag, so that the opening of the packaging bag is squeezed and closed. At this time, the sealer heats up, completing the sealing operation of the packaging bag;

[0068] S5. After the packaging bag is sealed, the sealer is reset and the packaged polishing salt is taken out.

[0069] The beneficial effects of the present invention are:

[0070] 1. The weight of the polishing salt is detected by the weighing component. When the polishing salt in the weighing hopper reaches the preset value range, the weighing component sends a signal. After receiving the signal, the controller controls the pouring component to open. The pouring component drives the weighing component to move upward, and the weighing component drives the weighing hopper to move upward. The weighing hopper flips horizontally to an inclined state, and the polishing salt in the weighing hopper flows into the pre-opened packaging bag. In this way, the polishing salt can be weighed automatically, and the weighed polishing salt can be poured into the packaging bag, thereby automatically packaging the polishing salt;

[0071] 2. After receiving the signal, the controller controls the first cylinder to start, and the piston rod of the first cylinder drives the weighing assembly to move upward, and the weighing assembly drives the weighing hopper to move upward, the articulated ball rotates, and the weighing hopper flips horizontally to an inclined state, so that the polishing salt flows into the packaging bag. In this way, the polishing salt that has been weighed can be poured into the packaging bag, saving labor and improving work efficiency;

[0072] 3. The depth of the discharge cavity gradually decreases from deep to shallow along the inner cavity of the weighing hopper, and gradually becomes shallower along the discharging direction, so that when the weighing hoppers are arranged in parallel, the polishing salt can fall into the deeper position of the discharge cavity, and the discharge cavity can hold the polishing salt, preventing the polishing salt from being thrown out of the weighing hopper due to the parallel arrangement of the discharge cavity;

[0073] 4. The width of the discharge cavity gradually decreases as the depth becomes shallower, so that when the polishing salt is discharged from the discharge hopper, the discharge cavity can gather the polishing salt for pouring, avoiding the polishing salt being dispersed and poured out due to the width of the discharge cavity, making it easy to pour the polishing salt out of the packaging bag. The reduction in the width of the discharge cavity corresponds to an increase in the area of ​​the packaging bag, so that the polishing salt can be better poured into the packaging bag;

[0074] 5. The weight of the polishing salt is detected by the pressure sensor, so that the polishing salt is weighed within the preset value range, and then a signal is sent. The controller receives the signal to control the first cylinder to work. The first cylinder acts as a driving force to drive the weighing hopper to flip horizontally to an inclined state, and then pour the polishing liquid into the packaging bag. In this way, the polishing salt weighed within the preset value range can be poured into the packaging bag, saving manpower;

[0075] 6. The suction cup absorbs the open end of the packaging bag, and the rack moves and contacts the gear, which drives the rotating shaft to rotate, the rotating shaft drives the rotating part to rotate, the rotating part drives the guide plate to rotate, the guide plate drives the suction cup to rotate and open, and the suction cup drives the end of the packaging bag to open, so that the packaging bag can be opened automatically, which is convenient for packaging the polishing salt;

[0076] 7. The second cylinder is used as a driving force to drive the preheated sealer to move toward the opening of the packaging bag. The sealer and the pressing plate press the packaging bag tightly, thereby sealing the packaging bag. In this way, the packaging bag can be sealed to prevent the polishing salt from splashing out during transportation, thereby ensuring the sealing of the polishing salt after bagging and ensuring the quality of the polishing salt.

[0077] 8. When the suction cup opens the packaging bag, the electric slider drives the moving rod to move out of contact with the contact plate. Under the resetting action of the compression spring, the positioning plate moves to contact with the packaging bag. The positioning plate positions the packaging bag to prevent the packaging bag from shifting, so as to ensure that the position of the packaging bag opening corresponding to the polishing salt discharge is more accurate and the polishing salt can be better packaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0078] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0079] Figure 2 It is a usage state diagram of the present invention;

[0080] Figure 3 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0081] Figure 4 It is a schematic diagram of the three-dimensional structure of the pouring assembly of the present invention;

[0082] Figure 5 It is a schematic diagram of the three-dimensional structure of the weighing assembly of the present invention;

[0083] Figure 6 is a system block diagram of the controller of the present invention;

[0084] Figure 7 It is a schematic diagram of the three-dimensional structure of the sealing assembly of the present invention;

[0085] Figure 8 is a cross-sectional view of a support assembly of the present invention;

[0086] Fig. 9 It is a schematic diagram of the three-dimensional structure of the bag opening assembly of the present invention;

[0087] Fig.10 It is a schematic diagram of the three-dimensional structure of the bag opening assembly of the present invention opening a packaging bag;

[0088] Fig.11 It is a schematic diagram of the three-dimensional structure of the blanking assembly of the present invention;

[0089] The reference numerals in the figure are: 1. weighing hopper; 101. discharging hopper; 2. pouring assembly; 21. first bracket; 22. first cylinder; 23. first support rod; 24. hinged ball; 25. first connecting plate; 26. guide frame; 27. arc groove; 28. guide member; 3. weighing assembly; 31. weighing shell; 32. force plate; 33. pressure sensor; 4. packaging assembly; 5. controller; 51. discharge chamber; 6. base; 7. support assembly; 71. electric slide rail; 72. electric slider; 73. second bracket; 74. slide rod; 75. support plate; 76. buffer spring; 8. bag opening assembly; 81. first connecting rod; 82, rack; 83, second connecting plate; 84, rotating shaft; 85, gear; 86, rotating member; 87, guide plate; 88, suction cup; 89, pull rod; 810, return spring; 9, sealing assembly; 91, second support rod; 92, pressure plate; 93, third bracket; 94, second cylinder; 95, sealer; 96, guide rod; 100, positioning assembly; 1001, support rod; 1002, positioning plate; 1003, compression spring; 1004, second connecting rod; 1005, contact plate; 1006, moving rod; 11, unloading assembly; 111, sleeve rack; 112, unloading bin; 12, packaging bag. DETAILED DESCRIPTION

[0090] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0091] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0092] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0093] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0094] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0095] Embodiment 1:

[0096] like Figure 1-Figure 11 As shown, this embodiment provides a fully automatic and continuous production of polishing salt weighing and packaging equipment, including a weighing hopper 1 and a discharge hopper 101 arranged at one end of the weighing hopper 1; characterized in that it also includes:

[0097] A weighing assembly 3 is arranged at the bottom of the weighing hopper 1 and is used to detect the weight of the polishing salt;

[0098] The pouring assembly 2 is connected to the weighing assembly 3 and is used to drive the weighing assembly 3 and the weighing hopper 1 to flip horizontally to an inclined state to pour the polishing salt;

[0099] A packaging component 4, which is located at the discharge end of the discharge hopper 101 and is used to receive the poured polishing salt and package the polishing salt;

[0100] The controller 5 is electrically connected to the weighing component 3 and the pouring component 2, and controls the operation state of the pouring component 2 according to the weight of the polishing salt detected by the weighing component 3;

[0101] When the polishing salt is weighed to a preset weight by the weighing component 3 , the pouring component 2 drives the weighing component 3 to flip horizontally to an inclined state, so that the polishing salt flows from the weighing hopper 1 along the discharge hopper 101 into the packaging component 4 .

[0102] In the present technical scheme, since the current polishing salt weighing and packaging equipment needs staff to observe whether the vertical weight of the polishing salt reaches a preset value when weighing the polishing salt, if the polishing salt reaches the preset value, the staff will transfer the weighed polishing salt to the packaging bag 12, and then package the polishing salt. This not only requires staff to observe the weighing weight of the polishing salt, but also needs to unload the weighed polishing salt. The operation method is cumbersome, the labor cost is high, and it is time-consuming and labor-intensive.

[0103] Specifically, when it is necessary to weigh and package the polishing salt, the produced polishing salt is discharged into the weighing hopper 1, and the polishing salt applies gravity to the weighing hopper 1. The weighing component 3 detects the weight of the polishing salt. When the polishing salt in the weighing hopper 1 reaches a predetermined preset value, the weighing component 3 sends a signal. After receiving the signal, the controller 5 controls the pouring component 2 to open, and the pouring component 2 drives the weighing component 3 to move upward. The weighing component 3 drives the weighing hopper 1 to move upward. During the upward movement of the weighing hopper 1, it flips horizontally to an inclined state. After the discharge hopper 101 follows the weighing hopper 1 to flip to an inclined state, the polishing salt in the weighing hopper 1 flows into the pre-opened packaging bag 12. After all the polishing salt in the weighing hopper 1 is loaded into the packaging bag 12, the packaging component 4 starts working to seal the packaging bag 12. In this way, the polishing salt can be weighed automatically and the weighed polishing salt can be packaged, so as to accurately package the polishing salt in a quantitative manner, improve work efficiency, and save time and effort.

[0104] like Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, the optimized pouring assembly 2 includes:

[0105] There are two first brackets 21, and the two first brackets 21 are parallel and symmetrically distributed;

[0106] The first cylinder 22 is disposed between the two first brackets 21. The piston rod of the first cylinder 22 is connected to the weighing assembly 3. The controller 5 is electrically connected to the first cylinder 22. The controller 5 is used to control the operating state of the first cylinder 22 after receiving the information detected by the weighing assembly 3.

[0107] A first support rod 23, disposed on the first bracket 21;

[0108] A hinge ball 24 is rotatably disposed on one of the first support rods 23;

[0109] A first connecting plate 25 is provided at one end of the weighing assembly 3, and the first connecting plate 25 is hingedly connected to the hinge ball 24;

[0110] A guide frame 26 is provided on the first support rod 23 on the other side;

[0111] The arc groove 27 is opened along the length direction of the guide frame 26;

[0112] The guide member 28 is provided at one end of the weighing hopper 1 by means of bolt connection, and the guide member 28 is slidably connected to the arc groove 27 .

[0113] In the present technical solution, when the polishing salt needs to be quantitatively packaged, the polishing salt is weighed by the weighing assembly 3. When the polishing salt is weighed within the preset value range, the weighing assembly 3 sends a signal. After receiving the signal, the controller 5 controls the first cylinder 22 to start, and the piston rod of the first cylinder 22 extends, pushing one side end of the bottom of the weighing assembly 3 to move upward, so that the weighing assembly 3 drives the guide member 28 to move upward along the arc groove 27 of the guide frame 26, and the weighing assembly 3 drives the first connecting plate 25 to rotate, and the first connecting plate 25 drives the hinged ball 24 to rotate. At the same time, the weighing assembly 3 drives the weighing hopper 1 to move upward. At this time, the weighing hopper 1 moves from a horizontal state to an inclined state, and the discharge hopper 101 follows the weighing hopper. 1 is flipped to an inclined state, and the polishing salt in the weighing hopper 1 flows from the discharge hopper 101 to the packaging bag 12. When all the polishing salt in the weighing hopper 1 is poured out, the weighing component 3 detects the weight and sends a signal. After receiving the signal, the controller 5 controls the piston rod of the first cylinder 22 to retract. The piston rod of the first cylinder 22 drives the weighing component 3 to move downward, and the weighing component 3 drives the weighing hopper 1 to move downward. The weighing hopper 1 drives the guide member 28 to move downward along the arc groove 27 of the guide frame 26. At the same time, the weighing component 3 drives the first connecting plate 25 to rotate through the hinge ball 24. At this time, the weighing component 3 and the weighing hopper 1 are reversed to a horizontal state. Repeat the above operation to quantitatively package the polishing salt.

[0114] Embodiment 2:

[0115] This embodiment provides a fully automatic and continuous production of polishing salt weighing and packaging equipment, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0116] like Figure 3 As shown, in the present embodiment, the inner cavity of the weighing hopper 1 is optimized to have a discharge cavity 51, which extends from the inner cavity of the weighing hopper 1 to pass through the discharge hopper 101, and the depth of the discharge cavity 51 gradually becomes shallower and gradually becomes shallower in the discharge direction. The width of the discharge cavity 51 extending in the discharge direction gradually decreases as the depth becomes shallower.

[0117] In the present technical scheme, a discharge chamber 51 is opened in the weighing hopper 1, and the depth of the discharge chamber 51 gradually becomes shallower along the inner chamber of the weighing hopper 1, and gradually becomes shallower along the discharging direction, so that when the weighing hopper 1 is arranged in parallel, when the polishing salt is fed into the weighing hopper 1, the polishing salt can fall into the deeper position of the discharge chamber 51, and the discharge chamber 51 can hold the polishing salt, thereby preventing the polishing salt from being thrown out of the weighing hopper 1 due to the parallel arrangement of the discharge chamber 51; in addition, the width of the discharge chamber 51 extending in the discharging direction gradually decreases as the depth becomes shallower, so that when the polishing salt is discharged from the discharging hopper 101, the discharge chamber 51 can gather the polishing salt for pouring, thereby avoiding the polishing salt from being dispersed and poured out due to the width of the discharge chamber 51, so that the polishing salt can be easily poured out of the packaging bag 12, and the reduction in the width of the discharge chamber 51 corresponds to the increase in the area of ​​the packaging bag 12, thereby better pouring the polishing salt into the packaging bag 12.

[0118] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, in this embodiment, the weighing component 3 is optimized to include:

[0119] A weighing shell 31 is arranged at the bottom of the weighing hopper 1;

[0120] The force bearing plate 32 is arranged inside the weighing shell 31;

[0121] The pressure sensor 33 is disposed in the weighing shell 31 and located at the bottom of the force-bearing plate 32 , and is used to detect the weight of the polishing salt and send the detected information to the controller 5 . The pressure sensor 33 is electrically connected to the controller 5 .

[0122] In the present technical solution, when the polishing salt needs to be weighed, the polishing salt is first discharged into the weighing hopper 1. The polishing salt applies gravity to the weighing hopper 1. The weighing hopper 1 transmits the gravity of the polishing salt to the weighing shell 31. After being subjected to pressure, the force plate 32 presses down and squeezes the pressure sensor 33. The pressure sensor 33 weighs the polishing salt. When the polishing salt is discharged into the weighing hopper 1 and reaches a preset value, the weighing hopper 1 sends a signal. After receiving the signal, the controller 5 controls the first cylinder 22 to start. The piston rod of the first cylinder 22 extends and pushes the weighing shell 31 to move upward. The weighing shell 31 drives the weighing hopper 1 and the guide member 28 to move upward. The guide member 28 rotates along the arc groove 27 during the upward movement, so that the weighing hopper 1 rotates from a horizontal state to an inclined state. state, the polishing salt in the weighing hopper 1 flows from the discharge chamber 51 to the packaging bag 12, thereby quantitatively packaging the polishing salt. When all the polishing salt in the weighing hopper 1 is discharged, the pressure sensor 33 detects the weight in the weighing hopper 1 and sends a signal. After receiving the signal, the controller 5 controls the piston rod of the first cylinder 22 to retract, and the piston rod of the first cylinder 22 drives the weighing shell 31 to move downward, and the weighing shell 31 drives the weighing hopper 1 to move downward, and the weighing hopper 1 drives the guide part 28 to move downward along the arc groove 27 and reverse and reset, and the weighing hopper 1 reverses to a horizontal state. At this time, the polishing salt can continue to be weighed and packaged, and finally the polishing salt can be weighed, which is convenient for quantitative packaging of the polishing salt to ensure that the weight of the packaged polishing salt can be consistent.

[0123] like Figure 1 , Figure 2 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11 As shown, in this embodiment, the packaging assembly 4 is optimized to include a base 6 and a support assembly 7 disposed on the base 6 for supporting the packaging bag 12. The support assembly 7 includes:

[0124] At least two electric slide rails 71 are arranged in parallel on both sides of the base 6;

[0125] The electric slider 72 is slidably connected to the electric slide rail 71 through a moving member. There are two electric sliders 72, which are mirror-imaged and arranged between the two electric slide rails 71.

[0126] The second bracket 73 is disposed between the outer sides of the two electric slide rails 71;

[0127] A sliding rod 74 is slidably disposed on the second bracket 73;

[0128] A support plate 75 is disposed on the top of the slide bar 74;

[0129] The buffer spring 76 is sleeved on the slide bar 74 , and one end of the buffer spring 76 is pressed against the second bracket 73 , and the other end is pressed against the support plate 75 .

[0130] In the present technical solution, when the weighed polishing salt needs to be packaged, the packaging bag 12 needs to be placed on the support plate 75 first, and the packaging bag 12 is opened, and the discharge hopper 101 pours the weighed polishing salt into the packaging bag 12. As the amount of polishing salt in the packaging bag 12 increases, the support plate 75 drives the slide bar 74 to move downward along the second bracket 73, and the buffer spring 76 is compressed. When the polishing salt is packaged, the staff takes out the packaging bag 12. Afterwards, under the resetting action of the buffer spring 76, the support plate 75 drives the slide bar 74 to move upward and reset, so that the packaging bag 12 can be supported, which is convenient for packaging the polishing salt.

[0131] like Figure 1 , Figure 2 , Figure 7 , Fig. 9 and Fig.10 As shown, in this embodiment, the packaging assembly 4 is optimized and further includes a bag opening assembly 8 for opening the packaging bag 12. The bag opening assembly 8 includes:

[0132] A first connecting rod 81 is disposed at one end of the electric slider 72;

[0133] A rack 82, disposed on the first connecting rod 81;

[0134] A second connecting plate 83, disposed at one end of the second bracket 73;

[0135] A rotating shaft 84 is rotatably disposed on both sides of the second connecting plate 83;

[0136] A gear 85 is disposed on the rotating shaft 84, and the gear 85 is meshed with the rack 82;

[0137] A rotating member 86 is disposed on the rotating shaft 84;

[0138] A guide plate 87 is provided at one end of the rotating member 86;

[0139] There are multiple suction cups 88, which are arranged on opposite sides of the two guide plates 87 and distributed along the length direction of the guide plates 87, and the connection ends of the suction cups 88 and the guide plates 87 pass through and extend out of the guide plates 87;

[0140] A pull rod 89 is slidably disposed on one side of the suction cup 88 on the same side;

[0141] The return spring 810 is disposed on the pull rod 89 and connected to the guide plate 87 .

[0142] In the present technical solution, when it is necessary to open the packaging bag 12, the packaging bag 12 is first placed on the support plate 75, the opening of the packaging bag 12 is located between the suction cups 88 on both sides, and the suction cups 88 suck the opening of the packaging bag 12, and then the electric slide rail 71 is started, the electric slider 72 drives the first connecting rod 81 to move outward, the first connecting rod 81 drives the rack 82 to move outward, the rack 82 contacts and meshes with the gear 85, so that the gear 85 drives the rotating shaft 84 to rotate, and the rotating shaft 84 hits the rotating member 8 6 rotates, the rotating member 86 drives the guide plate 87 to rotate, the guide plate 87 drives the suction cup 88 to rotate and open, and the suction cup 88 drives the packaging bag 12 to open, then the packaging bag 12 is opened, and then the discharge hopper 101 pours the weighed polishing salt into the packaging bag 12, and the support plate 75 drives the slide bar 74 to move downward along the second bracket 73 as the polishing salt in the packaging bag 12 increases, and the buffer spring 76 is compressed. After the polishing salt is fully poured into the packaging bag 12, people pull the pull rod 89 to move outward along the suction cup 88, and repeat. The positioning spring 810 is stretched, and the pull rod 89 moves outward to disengage from the air outlet of the suction cup 88, and gas enters from the air outlet of the suction cup 88, so that the suction cup 88 has gas and then the packaging bag 12 is released. At this time, the staff will take the packaging bag 12 away, and under the reset action of the buffer spring 76, the support plate 75 drives the slide bar 74 to move upward and reset. At the same time, under the reset action of the reset spring 810, the pull rod 89 moves inward toward the air outlet and resets, and the pull rod 89 blocks the air outlet of the suction cup 88, and then the electric slider 72 drives the first connecting rod 8 1 moves inward, the first connecting rod 81 drives the rack 82 to move inward, the gear 85 drives the rotating shaft 84 to reverse, the rotating shaft 84 drives the rotating member 86 to reverse, the rotating member 86 drives the guide plate 87 to reverse, and the guide plate 87 drives the suction cup 88 to reverse and reset, and the above operations are repeated to open the packaging bag 12, and finally the packaging bag 12 can be opened, so as to package the polishing salt that has been weighed, reduce the manual opening of the packaging bag 12 by the staff, save manpower, time and effort, and improve work efficiency.

[0143] Among them, the pull rod 89 is slidably connected to the air outlet of the suction cup 88, so that the pull rod 89 can block the air outlet of the suction cup 88. When necessary, the air outlet of the suction cup 88 is opened to allow gas to enter the suction cup 88 through the air outlet, thereby loosening the suction cup 88.

[0144] like Figure 1 , Figure 2 , Figure 7 and Fig. 9 As shown, in this embodiment, the packaging component 4 is optimized and further includes a sealing component 9 for sealing the packaging bag 12 containing the polishing salt. The sealing component 9 includes:

[0145] The second support rod 91 has two parts and is arranged in parallel at one end of the base 6;

[0146] A pressure plate 92 is disposed between one ends of the two second support rods 91;

[0147] The third bracket 93 is disposed between the outer sides of the two electric slide rails 71;

[0148] The second cylinder 94 is disposed on the third bracket 93;

[0149] The sealer 95 is arranged on the piston rod of the second cylinder 94, and the sealer 95 is arranged opposite to the pressing plate 92;

[0150] The guide rod 96 is disposed at one end of the sealer 95 , and the guide rod 96 is slidably connected to the third bracket 93 .

[0151] In the present technical solution, the support plate 75 is squeezed to move downward by the increase of polishing salt in the packaging bag 12, and the buffer spring 76 is compressed. When all the polishing salt is poured into the packaging bag 12, the support plate 75 moves downward to drive the packaging bag 12 to move out of contact with the suction cup 88. At this time, the opening of the packaging bag 12 is located at the position of the pressure plate 92 and the sealer 95. The pressure plate 92 contacts the opening of the packaging bag 12. The sealer 95 is started for preheating first, and then the second cylinder 94 is started. The piston rod of the second cylinder 94 drives the sealer 95 to move toward the opening of the packaging bag 12, so that the sealer 95 moves and squeezes the opening of the packaging bag 12 simultaneously with the pressure plate 92. Mouth, and then seal the opening of the packaging bag 12. When the packaging bag 12 is sealed, the staff controls the piston rod of the second cylinder 94 to retract. The piston rod of the second cylinder 94 drives the sealer 95 to move until it is not in contact with the opening of the packaging bag 12, and then closes the second cylinder 94. At this time, the sealed packaging bag 12 is removed, and the polishing salt no longer applies force to the support plate 75. Under the resetting action of the buffer spring 76, the support plate 75 moves upward and resets, and finally the packaging bag 12 can be sealed to prevent the polishing salt from splashing out during transportation, so as to ensure the sealing of the polishing salt after bagging and ensure the quality of the polishing salt.

[0152] like Figure 1 , Figure 2 and Fig.11 As shown, in this embodiment, the optimization further includes a positioning component 100 for positioning the packaging bag 12; the positioning component 100 includes:

[0153] There are multiple support rods 1001, which are arranged on both sides of the support plate 75, and the support rods 1001 are slidably connected to the support plate 75;

[0154] The positioning plate 1002 is disposed on the support rod 1001 on the same side, and the positioning plate 1002 is slidably connected to the support plate 75;

[0155] The compression spring 1003 is sleeved on the support rod 1001 and is located between the positioning plate 1002 and the support plate 75;

[0156] The second connecting rod 1004 is disposed on both sides of the positioning plate 1002;

[0157] A contact plate 1005 is disposed between two second connecting rods 1004 on the same side;

[0158] The moving rod 1006 is disposed at the top of the electric slider 72 , and the moving rod 1006 is pressed against the contact plate 1005 .

[0159] In the present technical solution, under normal conditions, the moving rod 1006 is pressed against the contact plate 1005, so that the contact plate 1005 cannot move at will. The initial state of the compression spring 1003 is in a compressed state. At this time, the electric slide rail 71 is started, and the electric slider 72 drives the moving rod 1006 to move outward. The moving rod 1006 moves until it is out of contact with the contact plate 1005, and the moving rod 1006 will not be pressed against the contact plate 1005. Under the reset action of the compression spring 1003, the positioning plate 1002 drives the support rod 1001 to move inward along the support plate 75, and the positioning plate 1002 moves to contact the outer diameter of the packaging bag 12, so that the positioning plate 1002 positions the packaging bag 12, so that the packaging bag 12 will not move at will, to ensure that the position of the polishing salt discharge corresponding to the opening of the packaging bag 12 is more accurate, and the polishing salt is better packaged. When the polishing salt falls into the packaging bag 12, the weight of the polishing salt applies gravity to the support plate 75, so that the support plate 75 moves downward, the buffer spring 76 is compressed, and the support plate 75 drives the positioning plate 1002 to move downward, so that the positioning plate 1002 can maintain the operation of positioning the packaging bag 12. At this time, the suction cup 88 is out of contact with the opening of the packaging bag 12, the electric slider 72 drives the first connecting rod 81 and the moving rod 1006 to move inward, the first connecting rod 81 drives the rack 82 to move inward, the rack 82 moves and contacts with the gear 85, the gear 85 drives the rotation and reverses, and then drives the suction cup 88 to reverse until it is out of contact with the packaging bag 12, and at the same time the moving rod 1006 moves inward until it contacts with the contact plate 1005, and presses the contact plate 1005 to move outward, the contact plate 1005 drives the second connecting rod 1004 to move outward, and the second connecting rod 1004 drives the second connecting rod 1004 to move outward. 004 drives the positioning plate 1002 to move outward, and the positioning plate 1002 moves to be out of contact with the packaging bag 12. The positioning plate 1002 squeezes the compression spring 1003, and the compression spring 1003 is compressed. The positioning plate 1002 pulls the packaging bag 12. At this time, the staff can remove the packaging bag 12. Under the resetting action of the buffer spring 76, the support plate 75 moves upward and resets. Finally, the packaging bag 12 can be positioned to avoid displacement of the packaging bag 12, so as to ensure that the position of the opening of the packaging bag 12 corresponding to the polishing salt discharge is more accurate and the polishing salt can be better packaged.

[0160] like Figure 1 and Figure 2 As shown, in this embodiment, the optimization further includes a feeding assembly 11 for feeding the polishing salt;

[0161] The blanking assembly 11 comprises:

[0162] The sleeve frame 111 is arranged on the top of the guide frame 26;

[0163] The lower bin 112 is arranged in the sleeve frame 111 and is located above the weighing hopper 1 .

[0164] In the present technical solution, when the polishing salt needs to be quantitatively packaged, the polishing salt produced is first transmitted from other transmission equipment to the discharge bin 112, and the polishing salt flows from the inner diameter of the discharge bin 112 into the weighing hopper 1. After that, the polishing salt can be weighed and the weighed polishing salt can be packaged, so that the polishing salt can be discharged.

[0165] like Figure 1-Figure 11 As shown, in this embodiment, an optimized, fully automatic and continuous production method for weighing and packaging polishing salt includes the following steps:

[0166] S1, the finished polishing salt is discharged into the weighing hopper 1, and is weighed by the weighing component 3. If it is within the preset value range, it goes to S2;

[0167] S2, the controller 5 controls the operation state of the first cylinder 22 after the weight of the polishing salt detected by the weighing assembly 3 reaches within the preset value range. The first cylinder 22 is first started to drive the weighing hopper 1 to move upward. One end of the weighing hopper 1 is hingedly connected by the hinge ball 24, and the other end is moved in an arc shape along the arc groove 27 by the guide member 28, so that the weighing hopper 1 is horizontally flipped to a tilted state, and finally the polishing salt flows out of the weighing hopper 1;

[0168] S3, the bag opening assembly 8 starts to work. Under normal conditions, the suction cups 88 on both sides are closed. The packaging bag 12 is placed on the support plate 75, and the suction cups 88 on both sides absorb the two sides of the packaging bag 12. The electric slide rail 71 is started, and the electric slider 72 moves horizontally along the electric slide rail 71 through the moving part. The electric slider 72 drives the rack 82 to move, and the gear 85 drives the rotating shaft 84 to rotate, so that the suction cups 88 on both sides move outward and open. The suction cups 88 open the packaging bag 12 and firmly absorb the packaging bag 12 to be in an open state.

[0169] S4, after the packaging bag 12 located below the discharge hopper 101 is opened, the polishing salt falls into the packaging bag 12. After the feeding is completed, the packaging bag 12 is naturally pressed down by gravity, the buffer spring 76 is compressed, and the packaging bag 12 moves downward until the opening of the packaging bag 12 faces the sealer 95. The sealing assembly 9 is started, and the second cylinder 94 is used to push the sealer 95 to move to the opening of the packaging bag 12, so that the opening of the packaging bag 12 is squeezed and closed. At this time, the sealer 95 is heated, and the sealing operation of the packaging bag 12 is completed;

[0170] S5. After the packaging bag 12 is sealed, the sealer 95 is reset, and the packaged polishing salt is taken out.

[0171] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the inspiration of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A fully automatic and continuous production polishing salt weighing and packaging device, comprising a weighing hopper (1) and a discharge hopper (101) arranged at one end of the weighing hopper (1); characterized in that: Also includes: A weighing component (3), arranged at the bottom of the weighing hopper (1), and used to detect the weight of the polishing salt; A material pouring component (2) connected to the weighing component (3) and used to drive the weighing component (3) and the weighing hopper (1) to flip horizontally to an inclined state to pour the polishing salt; A packaging component (4), located at the discharge end of the discharge hopper (101), used for receiving the poured polishing salt and packaging the polishing salt; A controller (5) is electrically connected to the weighing component (3) and the pouring component (2), and controls the operating state of the pouring component (2) according to the weight of the polishing salt detected by the weighing component (3); When the polishing salt is weighed to a preset weight by the weighing component (3), the pouring component (2) drives the weighing component (3) to flip horizontally to an inclined state, so that the polishing salt flows from the weighing hopper (1) along the discharge hopper (101) into the packaging component (4); The pouring assembly (2) comprises: The first bracket (21) has two first brackets (21), and the two first brackets (21) are parallel and symmetrically distributed; A first cylinder (22) is arranged between the two first brackets (21); a piston rod of the first cylinder (22) is connected to the weighing assembly (3); the controller (5) is electrically connected to the first cylinder (22); the controller (5) is used to control the operating state of the first cylinder (22) after receiving information detected by the weighing assembly (3); A first support rod (23) is arranged on the first support (21); A hinge ball (24) rotatably disposed on one of the first support rods (23); A first connecting plate (25) is arranged at one end of the weighing assembly (3), the first connecting plate (25) being hinge-connected to the hinge ball (24); A guide frame (26) is arranged on the first support rod (23) on the other side; An arc-shaped groove (27) is provided along the length direction of the guide frame (26); A guide member (28) is provided at one end of the weighing hopper (1) by means of a bolt connection, and the guide member (28) is slidably connected to the arc-shaped groove (27); The inner cavity of the weighing hopper (1) comprises a discharge cavity (51), the discharge cavity (51) extending from the inner cavity of the weighing hopper (1) to pass through the discharge hopper (101), and the depth of the discharge cavity (51) gradually decreases from deep to shallow, and gradually becomes shallower along the discharge direction, and the width of the discharge cavity (51) extending in the discharge direction gradually decreases as the depth becomes shallower; The packaging component (4) comprises a base (6) and a support component (7) arranged on the base (6) and used to support a packaging bag (12), wherein the support component (7) comprises: At least two electric slide rails (71) are arranged in parallel on both sides of the base (6); An electric slider (72) is slidably connected to the electric slide rail (71) via a moving member, and the electric slider (72) has two and is mirror-imagedly disposed between the two electric slide rails (71); A second bracket (73) is arranged between the outer sides of the two electric slide rails (71); A sliding rod (74) slidably disposed on the second bracket (73); A support plate (75) is arranged on the top end of the slide bar (74); A buffer spring (76) is sleeved on the slide rod (74), one end of the buffer spring (76) is pressed against the second bracket (73), and the other end is pressed against the support plate (75); The packaging assembly (4) further comprises a bag opening assembly (8) for opening the packaging bag (12), wherein the bag opening assembly (8) comprises: A first connecting rod (81) is arranged at one end of the electric slider (72); A rack (82) disposed on the first connecting rod (81); A second connecting plate (83) is arranged at one end of the second bracket (73); A rotating shaft (84) rotatably disposed on two sides of the second connecting plate (83); A gear (85) is disposed on the rotating shaft (84), and the gear (85) is meshed with the rack (82); A rotating member (86) is disposed on the rotating shaft (84); A guide plate (87) is arranged at one end of the rotating member (86); A plurality of suction cups (88) are provided on opposite surfaces of the two guide plates (87) and are distributed along the length direction of the guide plates (87); the connection ends of the suction cups (88) and the guide plates (87) pass through and extend out of the guide plates (87); A pull rod (89) slidably disposed on one side of the suction cup (88) on the same side; A return spring (810) is disposed on the pull rod (89) and connected to the guide plate (87).

2. The fully automatic and continuous production polishing salt weighing and packaging equipment according to claim 1 is characterized in that: The weighing component (3) comprises: A weighing shell (31) is arranged at the bottom of the weighing hopper (1); A force-bearing plate (32) is arranged inside the weighing shell (31); A pressure sensor (33) is disposed in the weighing shell (31) and located at the bottom of the force-bearing plate (32), and is used to detect the weight of the polishing salt and send the detected information to the controller (5). The pressure sensor (33) is electrically connected to the controller (5).

3. The fully automatic and continuous production polishing salt weighing and packaging equipment according to claim 2 is characterized in that: The packaging component (4) further comprises a sealing component (9) for sealing the packaging bag (12) containing the polishing salt, wherein the sealing component (9) comprises: Two second support rods (91) are arranged in parallel at one end of the base (6); A pressure plate (92) is disposed between one ends of the two second support rods (91); A third bracket (93) is arranged between the outer sides of the two electric slide rails (71); A second cylinder (94) is disposed on the third bracket (93); A sealer (95) is arranged on the piston rod of the second cylinder (94), and the sealer (95) is arranged opposite to the pressing plate (92); A guide rod (96) is arranged at one end of the sealer (95), and the guide rod (96) is slidably connected to the third bracket (93).

4. The fully automatic and continuous production polishing salt weighing and packaging equipment according to claim 3 is characterized in that: It also includes a positioning component (100) for positioning the packaging bag (12); the positioning component (100) includes: A plurality of support rods (1001) are provided on both sides of the support plate (75), and the support rods (1001) are slidably connected to the support plate (75); A positioning plate (1002) is arranged on the support rod (1001) on the same side, and the positioning plate (1002) is slidably connected to the support plate (75); A compression spring (1003) is sleeved on the support rod (1001) and is located between the positioning plate (1002) and the support plate (75); A second connecting rod (1004) is arranged on both sides of the positioning plate (1002); A contact plate (1005) is arranged between two of the second connecting rods (1004) on the same side; A moving rod (1006) is arranged at the top end of the electric slider (72), and the moving rod (1006) is pressed against the contact plate (1005).

5. The fully automatic and continuous production polishing salt weighing and packaging equipment according to claim 4 is characterized in that: It also includes a feeding assembly (11) for feeding the polishing salt; The blanking component (11) comprises: A sleeve frame (111), arranged on the top of the guide frame (26); The lower material bin (112) is arranged in the sleeve frame (111) and is located above the weighing hopper (1).

6. The method for weighing and packaging polishing salt for full-automatic continuous production according to claim 5 is characterized in that: The following steps are involved: S1, the finished polishing salt is discharged into the weighing hopper (1), and the weighing component (3) weighs the polishing salt. If the weighed weight is within the preset value range, the process proceeds to S2; S2, the controller (5) controls the operating state of the first cylinder (22) according to the weight of the polishing salt detected by the weighing component (3) reaching a preset value range. The first cylinder (22) is first started to drive the weighing hopper (1) to move upward. One end of the weighing hopper (1) is hingedly connected by a hinge ball (24), and the other end is moved in an arc shape along the arc groove (27) by a guide member (28), so that the weighing hopper (1) is horizontally flipped to a tilted state, and finally the polishing salt flows out of the weighing hopper (1); S3, the bag opening component (8) starts to work. In a normal state, the suction cups (88) on both sides are closed. The packaging bag (12) is placed on the support plate (75). The suction cups (88) on both sides absorb the two sides of the packaging bag (12). The electric slide rail (71) is started. The electric slider (72) moves horizontally along the electric slide rail (71) through the moving part. The electric slider (72) drives the rack (82) to move. The gear (85) drives the rotating shaft (84) to rotate, so that the suction cups (88) on both sides move outward and open. The suction cups (88) open the packaging bag (12) and firmly absorb the packaging bag (12) to be in an open state. S4, after the packaging bag (12) located below the discharge hopper (101) is opened, the polishing salt falls into the packaging bag (12). After the feeding is completed, the packaging bag (12) is naturally pressed downward by gravity, the buffer spring (76) is compressed, and the packaging bag (12) moves downward until the opening of the packaging bag (12) faces the sealer (95). The sealing component (9) is started, and the second cylinder (94) is used to push the sealer (95) to move to the opening of the packaging bag (12), so that the opening of the packaging bag (12) is squeezed and closed. At this time, the sealer (95) is heated, and the sealing operation of the packaging bag (12) is completed; S5, after the packaging bag (12) is sealed, the sealer (95) is reset, and the packaged polishing salt is taken out.

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