Ingredient blending device

Abstract

An ingredient blending device comprises a rack, a supporting frame for supporting a crucible with an upward opening is arranged on the rack, and a sealing film is arranged at the position, above the supporting position of the crucible, of the rack. The crucible moves upwards along with the supporting frame to the position of the sealing film with the film face located at the horizontal position, and when the film blocks the opening of the crucible in a sealed mode, the driving shaft drives the machine frame to rotate in the plumb plane. When the machine frame stops rotating and resets to the locking position where the opening of the crucible faces upwards, the cutting unit cuts out a film cutting piece blocking the opening area of the crucible on the sealing film, and the film smashing unit abuts against and pushes the film cutting piece to move towards the interior of the crucible. The sealing film is used for sealing the opening of the crucible, the cutting unit can cut off the film body blocking the area of the opening of the crucible, and the film body is pushed into the crucible by the film smashing unit and is fused together with materials, so that the loss of original materials in the crucible is avoided, and the fused film body does not influence the subsequent detection result.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire assay detection, in particular to a batching and uniform mixing device. BACKGROUND

[0002] Fire assay method for determining gold, silver and other precious metals as a classic method continues to this day, and still plays an irreplaceable role in modern chemical analysis, especially for high content gold raw materials or pure gold, the accuracy and accuracy of gold component determination are not as good as other direct determination methods. Among them, in the process of fire assay analysis, before the sample is sent into the smelting furnace, the powdered sample to be detected and the flux need to be stirred and mixed uniformly, so that the materials can react quickly and fully in the crucible.

[0003] The patent document with the name "fire assay batching and mixing device" (document number CN221933657U, hereinafter referred to as document 1) discloses a technical scheme including a pot body, a cover body and a stirring mechanism; the stirring mechanism is provided with a motor located away from the second opening end of the cover body, the working end of the motor is coaxially connected with one end of a rotating rod, the other end of the rotating rod penetrates through the cover body and extends into the pot body and is connected with a stirring assembly. The batching of fire assay is placed in the pot body, the cover body forms a sealed space inside, and the first motor can be controlled to work to rotate the stirring assembly along the axis of the rotating rod, thereby stirring the batching of fire assay, so that the component materials are fully mixed.

[0004] The patent document with the name "stirring device for fire assay" (document number CN221514156U, hereinafter referred to as document 2) discloses a technical scheme including a workbench, a top plate is installed above the workbench, a plurality of supporting rods, two electric push rods and a test mold are installed between the workbench and the top plate, a driving motor is installed at the top of the top plate, a gear compartment is installed at the bottom of the top plate, a driving wheel and a plurality of driven wheels are installed inside the gear compartment, a stirring rod is installed at the bottom of the driving wheel and the plurality of driven wheels, and a sealing ring is installed at the bottom of the gear compartment. The driving motor drives the driving wheel and the plurality of driven wheels to rotate, so as to make the stirring rod mix and stir the sample to be tested and the covering agent in the test mold.

[0005] The patent document with the name "closed type automatic sample stirring machine for fire assay" (document number CN107998951B, hereinafter referred to as document 3) discloses a technical scheme including a support; a lower box which rotates relative to the support through the first rotating shaft and the second rotating shaft fixed on both sides, and is hinged to the upper box on one side through a hinge and connected through a locking device on the other side; the upper box includes: a flexible layer sealing the open mouth of the crucible, a hard support plate fixing the flexible layer, and the support plate contacting the bottom surface of the upper box through an air bag which can be inflated and deflated and has a valve; the lower box is provided with a crucible groove for placing the crucible. The air bag and the flexible layer embedded in the upper box make the flexible layer extrude the open mouth of the sealed crucible, so as to rotate and mix the materials.

[0006] At present, the mixing operation of mixing the sample and the flux is usually realized by stirring the material in the crucible with a stirring rod. When the stirring rod is used in this way, a small amount of material will often adhere to the stirring rod after the sample and the flux are stirred. Although the material can be manually cleaned back into the crucible, it is difficult to completely clean it down and easy to cause the material to scatter outside the crucible, which will affect the final detection result of the sample. Although the technical solution in document 3 cancels the setting of the stirring rod and uses the rotating action to mix the material in the crucible, the elastic layer as the sealing component of the open mouth of the crucible will also adhere to the sample after the device is rotated, and the same material adhesion problem exists. Practical new type content

[0007] The utility model provides a kind of batching mixing device, sample and flux are completely retained in crucible after mixing operation is completed and will not be missing, guarantee the accuracy of subsequent detection result.

[0008] In order to achieve the above purpose, the technical scheme adopted is as follows: a kind of batching mixing device, including rack, the support frame of the crucible with opening upwards is set on the rack, the sealing film is set on the rack above the support position of the crucible, when the sealing film is at the position of flat position and the diaphragm is sealedly blocked in the pot opening of the crucible, driving shaft drives the rack to rotate in plumb surface;When the rack stops rotating and resets to the stop position of the pot opening of the crucible upwards, cutting unit cuts the film slice of the sealing film in the area of the pot opening of the crucible, and the film slice is displaced into the crucible by pushing the film unit.

[0009] Compared with the prior art, the technical effect of the utility model is that the pot opening of the crucible is sealed by the sealing film, after the material is turned over and mixed, the film body in the area of the pot opening of the crucible is cut off by the cutting unit, and is pushed into the crucible by the film unit, part of the material adheres to the cut film body and does not need to be taken out from the crucible, can be melted with the material, thereby avoiding the loss of the original material in the crucible, the melted film body will not affect the subsequent detection result, and the accuracy of the detection result is guaranteed. ACCURACY

[0010] Figure 1 It is a three-dimensional appearance schematic view of the utility model;

[0011] Figure 2 It is a schematic view of driving shaft;

[0012] Figure 3 It is a schematic view of the internal structure of the protection box;

[0013] Figure 4 It is Figure 3 Partial structure front view;

[0014] Figure 5 for Figure 3 A schematic diagram of the bottom of the structure shown;

[0015] Figure 6 This is a schematic diagram of a partial structure;

[0016] Figure 7 This is a schematic diagram of the bottom of the pressure ring;

[0017] Figure 8 This is a schematic diagram showing the relative positions of the cutting tool, the pressure ring, the tamping head, and the upper pressure ring.

[0018] Figure 9 This is a schematic diagram of the internal structure of the cutting tool;

[0019] Figure 10 This is a schematic diagram showing the state of the crucible as it moves upwards until the sealing film seals the opening of the pot.

[0020] Figure 11 This is a schematic diagram showing the state when the crucible moves downward and the upper and lower pressure rings initially press the sealing film together.

[0021] Figure 12 A schematic diagram showing the state of a membrane slice being cut by a cutting tool;

[0022] Figure 13 This is a schematic diagram showing the state of the film slice being pushed into the crucible by the film-making unit. Detailed Implementation

[0023] The following is in conjunction with the appendix Figures 1-13 The present invention will be further described in detail below, including related content:

[0024] A mixing device includes a frame 10, on which a support frame 20 is provided to support a crucible A with its opening facing upwards. A sealing film 30 is provided on the frame 10 above the support position of the crucible A. When the crucible A moves upwards with the support frame 20 to the position where the film surface is in a flat position and the film is sealing the mouth of the crucible A, a drive shaft 40 drives the frame 10 to rotate within a vertical plane. When the frame 10 stops rotating and returns to the stop position where the mouth of the crucible A faces upwards, a cutting unit 50 cuts a film slice B on the sealing film 30 to seal the area of ​​the mouth of the crucible A. A film-stirring unit 60 pushes the film slice B into the crucible A.

[0025] In the above scheme, when the sample and flux need to be mixed, the crucible A containing the sample and flux is placed on the bracket 20 in an open upward posture, and the bracket 20 supports the crucible A. Then, when the crucible A is displaced upward with the bracket 20 to the position of the sealing film 30 in the flat position of the film surface and the film sheet is sealed to the pot opening of the crucible A, the driving shaft 40 drives the rack 10 to rotate in the plumb surface, so that the crucible A rotates synchronously with the rack 10 to mix the materials in the crucible A. After the mixing is completed, the rack 10 stops rotating and returns to the stop position of the pot opening of the crucible A upward, the cutting unit 50 cuts the film sheet B sealing the pot opening area of the crucible A on the sealing film 30 (the film sheet B serves as the cover of the opening of the crucible A, and a small amount of material is attached to the inner side of the film sheet B during the overturning and mixing of the crucible A), and the film sheet B is displaced into the crucible A by the pushing of the film sheet B by the film stamping unit 60, so that the film sheet B is mixed with the materials in the crucible A. In the subsequent operation, the film sheet B attached with the materials can be melted with the materials in the crucible A, the materials on the film sheet B will not be lost, the melted film body will not affect the subsequent detection results, and the accuracy of the detection results is ensured.

[0026] It should be noted that the supporting bracket 20 is driven upward and downward by the power unit (which can be driven by a pneumatic cylinder or an electric cylinder), and when the crucible A placed on the supporting bracket 20 rotates, the supporting bracket 20 and the sealing film 30 limit the pot bottom and the pot opening of the crucible A in both directions, so that the crucible A will not fall off the supporting bracket 20 when it is in an inverted posture. In the present scheme, a clamp can also be provided on the supporting bracket 20 to directly clamp and fix the crucible A to prevent the crucible A from falling off the supporting bracket 20 during overturning.

[0027] As a preferred scheme, the rack 10 includes a base plate 11 standing on a plate surface and a base frame 12, the base frame 12 is provided with a power mechanism, the shaft core connected with the power mechanism is connected with the driving shaft 40 in the horizontal direction, and the sealing film 30, the cutting unit 50, the film stamping unit 60 and the supporting bracket 20 are arranged on the same side plate surface of the base plate 11. The base frame 12 serves as a base body, the power mechanism is arranged thereon, one end of the driving shaft 40 is connected with the power mechanism, and the other end is connected with the base plate 11. The driving shaft 40 is driven to rotate by the power mechanism, so that the base plate 11 standing on the plate surface and the structures arranged thereon can rotate in the plumb surface.

[0028] Further, in combination with Figure 3 , Figure 4 and Figure 5As shown, the sealing film winding roller 31A and the sealing film unwinding roller 31B are horizontally arranged on the substrate 11 at the side of the supporting frame 20, the sealing film 30 is transported from the sealing film unwinding roller 31B to the sealing film winding roller 31A, and the width of the sealing film 30 is greater than the mouth diameter of the crucible A, the mouth of the crucible A is arranged in relative spacing with the film body between the sealing film winding and unwinding rollers 31A and 31B when the crucible A is at the supporting position on the supporting frame 20. After the mixing operation of the material in the crucible A is completed, the sealing film unwinding roller 31B with the film body is transported along the specified path to the sealing film winding roller 31A, so that the complete film body is transported above the supporting position of the crucible A, so as to seal and mix the subsequent crucible A. The defective film segment of the sealing film 30 after the film slice B is cut off by the cutting unit 50 is wound back by the sealing film winding roller 31A.

[0029] It should be noted that in order to ensure that the sealing film 30 is in a taut state and does not sag, the sealing film winding and unwinding rollers 31A and 31B can be controlled to rotate by a stepping motor and cannot rotate freely.

[0030] As a preferred solution, a ring-shaped pressing ring 70 is arranged above the sealing film 30 on the substrate 11, the lower end surface of the pressing ring 70, the sealing film 30, and the mouth end surface of the crucible A are arranged in parallel with each other, and the crucible A is displaced upward with the supporting frame 20 to be sealed and blocked by the film sheet of the sealing film 30 at the mouth of the crucible A, and the mouth end surface of the crucible A abuts against the sealing film 30 and forms an abutting cooperation with the lower end surface of the pressing ring 70. The pressing ring 70 can resist and limit the crucible A, and the supporting frame 20 can resist and limit the bottom of the crucible A, and the two cooperate with each other to ensure that the sealed crucible A can stably rotate synchronously with the substrate 11. In addition, the mouth end surface of the crucible A and the pressing ring 70 abut against and cooperate with the sealing film 30, which can ensure that the sealing film 30 effectively blocks the mouth of the crucible A, and avoid leakage of the material in the crucible A during rotation. Here, the lower end surface of the pressing ring 70 can be made of silica gel material, which has a certain elastic deformation ability and can better adapt to the uneven mouth of the crucible A for tight sealing.

[0031] In order to cut the film slice B for blocking the mouth area of the crucible A on the sealing film 30, a movable seat 80 is arranged above the sealing film 30 on the substrate 11, a sleeve-shaped cutter 51 is connected to the lower end surface of the movable seat 80, and the lower end port of the cutter 51 forms a ring-shaped cutting edge 511, the cutting edge 511 is arranged in the same core as the pressing ring 70, and the diameter of the cutting edge 511 is greater than the outer diameter of the pressing ring 70, a crank connecting rod mechanism 81 drives the movable seat 80 to displace along the ring core direction of the cutter 51 to approach or move away from the crucible A, the cutter 51 is displaced to the crucible A when the substrate 11 is reset to the stop position, and the cutter 51 cuts the film slice B on the sealing film 30.

[0032] In the present solution, since the cutter 51 is annular and is arranged around the outer periphery of the binder ring 70, the pot opening end surface of the crucible A is pressed against the lower end surface of the binder ring 70. When the crank connecting rod mechanism 81 drives the movable seat 80 and the cutter 51 thereon to displace towards the crucible A, the cutting edge 511 on the lower end surface of the cutter 51 will cut a film slice B covering the pot opening area of the crucible A on the sealing film 30, thereby separating the film slice B with part of the material in the crucible A attached thereon from the sealing film 30 as a whole, so that the subsequent film breaking unit 60 can push the film slice B into the crucible A.

[0033] Further, in order to ensure that the cutter 51 can stably cut the film slice B on the sealing film 30, the lower end surface of the movable seat 80 is connected with an upper pressing ring 100A through an elastic connecting piece 90, the upper pressing ring 100A is arranged in the same core as the cutter 51 and is arranged around the outer periphery of the cutter 51, the elastic connecting piece 90 provides an elastic force to drive the upper pressing ring 100A to move away from the movable seat 80 along the ring core direction, and a lower pressing ring 100B is further arranged on the base plate 11, the upper pressing ring 100A and the lower pressing ring 100B are arranged in the same core and are arranged on the upper and lower sides of the sealing film 30, respectively, and when the upper pressing ring 100A is in an initial position separated from the flat sealing film 30, the height of the cutting edge 511 of the cutter 51 is above the lower end surface of the upper pressing ring 100A and the height of the lower end surface of the binder ring 70 is below the cutting edge 511; when the cutter 51 displaces towards the crucible A, the upper pressing ring 100A presses against the sealing film 30 and is pressed against the upper end surface of the lower pressing ring 100B.

[0034] In combination with Figs. 1-3, Figure 10 , Figure 11 and Figure 12 , it is shown that when the pot opening of the crucible A is in a state of pressing the sealing film 30 against the lower end surface of the binder ring 70, the upper pressing ring 100A moves downward synchronously with the movable seat 80 when the crank connecting rod mechanism 81 drives the movable seat 80 to displace downward. Before the cutter 51 contacts the sealing film 30, the upper pressing ring 100A first presses against the sealing film 30 and cooperates with the lower pressing ring 100B to clamp the sealing film 30. Then the cutter 51 continues to displace downward and cuts the sealing film 30 at a position close to the inner periphery of the upper and lower pressing rings 100A, 100B. In the present solution, the sealing film 30 is clamped by the upper and lower pressing rings 100A, 100B, which ensures that the sealing film 30 is effectively tensioned before cutting, thereby avoiding the situation that the sealing film 30 is loose and causes cutting failure during the process of pushing and cutting the sealing film 30 by the cutting edge 511 of the cutter 51.

[0035] It should be noted that, under the arrangement of the elastic connecting piece 90, after the upper pressing ring 100A is pressed against the lower pressing ring 100B, the upper pressing ring 100A cannot continue to move downward, and the movable seat 80 will drive the cutter 51 to continue to move downward. During the process, the elastic connecting piece 90 will be elastically contracted under the relative extrusion between the movable seat 80 and the upper pressing ring 100A, so as not to affect the continuous downward movement of the movable seat 80, so that the cutting edge 511 of the cutter 51 cuts the sealing film 30. The elastic force of the elastic connecting piece 90 can ensure that the sealing film 30 is effectively clamped on the lower pressing ring 100B by the upper pressing ring 100A.

[0036] As a preferred solution, the elastic connecting piece 90 includes a guide shaft 91, the shaft core of the guide shaft 91 is parallel to the ring core of the cutter 51, the lower end of the guide shaft 91 is connected to the upper pressing ring 100A, the guide shaft 91 penetrates through the guide sleeve 92 on the movable seat 80 and forms a guide sliding fit with the guide sleeve 92, a compression spring 93 is sleeved on the shaft body of the guide shaft 91 between the movable seat 80 and the upper pressing ring 100A, the upper end of the guide shaft 91 is connected to a limiting cap 94, and the size of the limiting cap 94 is greater than the hole diameter of the guide sleeve 92. The guide shaft 91 connected with the upper pressing ring 100A cooperates with the guide sleeve 92 on the movable seat 80, and the upper pressing ring 100A can move relative to the movable seat 80 along the direction of the shaft core of the guide shaft 91. When the upper pressing ring 100A pushes the lower pressing ring 100B, the compression spring 93 will be compressed and deformed, thereby providing an elastic force to drive the upper pressing ring 100A to press the sealing film 30.

[0037] The limiting cap 94 is arranged to avoid the guide shaft 91 from sliding out of the guide sleeve 92 on the movable seat 80 from top to bottom, and to ensure the stable connection between the upper pressing ring 100A and the movable seat 80.

[0038] Further combining the accompanying drawings, Figures 8-13 As shown in the drawings, the movable seat 80 is connected with a tamping rod 61, the tamping rod 61 is located at the center of the pressing ring 70, and the rod core of the tamping rod 61 is arranged in the same core as the ring core of the cutter 51. The lower end of the tamping rod 61 is connected with a disc-shaped tamping head 62, and the tamping head 62 is located above the pressing ring 70 when the movable seat 80 is located at the initial position. When the movable seat 80 is located at the terminal position of the cutter 51 cutting the film slice B on the sealing film 30, the tamping head 62 is located below the pressing ring 70.

[0039] When the knife 51 cuts the film slice B, the crank connecting rod mechanism 81 drives the movable seat 51 to continue to move downward, the tamping rod 61 and the tamping head 62 located in the center of the edge ring 70 continue to move downward with the movable seat 80, and the tamping head 62 pushes the cut film slice B into the crucible A, so that the film slice B with part of the material is tamped into the crucible A, ensuring that the material is completely retained in the crucible A. In this scheme, the sealing film 30 has a certain toughness. Under normal circumstances, when the film slice B is clamped between the edge ring 70 and the pot opening end face of the crucible A, the tamping head 62 pushes the film slice B, which can separate the edge of the film slice B from the edge ring 70 and the pot opening end face of the crucible A, and does not affect the tamping head 62 tamping the film slice B into the crucible A. Of course, the support frame 20 can first control the crucible A to be separated from the edge ring 70 to avoid the clamping force of the edge ring 70 and the pot opening end face of the crucible A on the film slice B being too large, so that the film slice B is clamped and difficult to be tamped into the crucible A.

[0040] As a preferred scheme, as shown in Figure 9 The base plate 11 is provided with a connecting table 110, the edge ring 70 is connected with the connecting table 110 through a connecting rod 71, the movable seat 80 is located below the connecting table 110, and the through hole 82 corresponding provided on the movable seat 80 is used for allowing the rod body of the connecting rod 71 to pass through freely. When the movable seat 80 moves up and down, the edge ring 70 does not interfere with the movable seat 80, and the edge ring 70 always keeps stationary relative to the base plate 11.

[0041] In addition, the movable seat 80 is connected with an upward extending limiting guide column 120, the column core direction of the limiting guide column 120 is parallel to the ring core direction of the knife 51, the limiting guide column 120 passes through the guide sleeve 121 on the connecting table 110 and forms a guide sliding fit with the guide sleeve 121. Through the guide fit between the limiting guide column 120 and the guide sleeve 121, it is guaranteed that the movable seat 80 can reciprocatingly displace along the ring core direction of the knife 51 under the drive of the crank connecting rod mechanism 81, so as to realize the cutting action of the knife 51, the film tamping action or the reset action of the tamping head 62.

[0042] As shown in Figure 1 As shown in Figure 2 The base plate 11 is provided with a protective box 13 with an open bottom, the protective box 13 covers the outside of the sealing film 30, the cutting unit 50 and the film tamping unit 60, and the support frame 20 is located outside the protective box 13. The purpose of the protective box 13 is to protect the overall structure on the base plate 11, and the bottom of the protective box 13 is open, which does not affect the placement or removal of the crucible A.

[0043] Finally, it should be noted that the sealing film unwinding roller 31B, the sealing film winding roller 31A, the support frame 20, or the crank linkage mechanism 81 need to be powered to operate. Considering that the substrate 11 is a rotating member, a corresponding power unit can be arranged on the substrate 11 to drive the corresponding components on the substrate 11 to operate, and a battery can be directly arranged on the substrate 11 to power the power unit, thereby avoiding the situation that the power supply wire is entangled with the driving shaft 40 or is locked when the substrate 11 rotates. The brush method can also be used to avoid the above situation. Of course, by controlling the maximum rotation angle of the substrate 11 and the length of the external power supply wire, the above problem can also be avoided.

Claims

1. A batch mixing apparatus comprising a frame (10) characterised in that: The frame (10) is provided with a supporting frame (20) supporting the crucible (A) with the opening upward, and the frame (10) is provided with a sealing film (30) above the supporting position of the crucible (A). When the crucible (A) is displaced upward with the supporting frame (20) to the position of the sealing film (30) with the film flat, the driving shaft (40) drives the frame (10) to rotate in the plumb surface. When the frame (10) stops rotating and resets to the stop position with the crucible (A) opening upward, the cutting unit (50) cuts the film slice (B) on the sealing film (30) to seal the opening area of the crucible (A), and the film-pushing unit (60) pushes the film slice (B) to displace into the crucible (A).

2. The ingredient blending apparatus of claim 1, wherein: The frame (10) comprises a base plate (11) and a base frame (12) standing on the plate surface, the base frame (12) is provided with a power mechanism, the shaft core connected with the power mechanism is the driving shaft (40) horizontally connected with the base plate (11), and the sealing film (30), the cutting unit (50), the film-pushing unit (60) and the supporting frame (20) are arranged on the same side plate surface of the base plate (11).

3. The ingredient blending apparatus of claim 2, wherein: The sealing film winding roller (31A) and the sealing film unwinding roller (31B) are horizontally arranged on the base plate (11) at the side where the supporting frame (20) is located, the sealing film (30) is transported from the sealing film unwinding roller (31B) to the sealing film winding roller (31A), and the width of the sealing film (30) is greater than the opening diameter of the crucible (A). When the crucible (A) is in the supporting position on the supporting frame (20), the opening of the crucible (A) is arranged in relative spacing with the film body between the sealing film winding roller (31A) and the sealing film unwinding roller (31B).

4. A dosing and mixing device according to claim 2 or 3, characterized in that: The base plate (11) is provided with a ring-shaped edge pressing ring (70) above the sealing film (30), the lower end surface of the edge pressing ring (70), the sealing film (30) and the opening end surface of the crucible (A) are arranged in parallel with each other, and when the crucible (A) is displaced upward with the supporting frame (20) to the position of the sealing film (30) with the film piece sealingly blocked in the opening of the crucible (A), the opening end surface of the crucible (A) presses the sealing film (30) and forms a pressing cooperation with the lower end surface of the edge pressing ring (70).

5. The ingredient blending apparatus of claim 4, wherein: The base plate (11) is provided with a movable seat (80) above the sealing film (30), the lower end surface of the movable seat (80) is connected with a sleeve-shaped cutter (51), the lower end port of the cutter (51) forms a ring-shaped cutting edge (511), the cutting edge (511) is arranged in the same core as the edge pressing ring (70), the diameter of the cutting edge (511) is greater than the outer diameter of the edge pressing ring (70), a crank connecting rod mechanism (81) drives the movable seat (80) to displace along the ring core direction of the cutter (51) to approach or move away from the crucible (A), and when the base plate (11) resets to the stop position, the cutter (51) displaces to the crucible (A) and cuts the film slice (B) on the sealing film (30).

6. The ingredient blending apparatus of claim 5, wherein: The lower end surface of the movable seat (80) is connected with an upper pressing ring (100A) through an elastic connecting piece (90), the upper pressing ring (100A) is arranged coaxially with the cutter (51) and is arranged adjacent to the outer periphery of the cutter (51), the elastic connecting piece (90) provides an elastic force to drive the upper pressing ring (100A) to move away from the movable seat (80) along the ring core direction, a lower pressing ring (100B) is further arranged on the base plate (11), the upper pressing ring (100A) and the lower pressing ring (100B) are arranged coaxially and are arranged on the upper and lower sides of the sealing film (30), when the upper pressing ring (100A) is in an initial position separated from the flat sealing film (30), the height of the cutting edge (511) of the cutter (51) is above the lower end surface of the upper pressing ring (100A) and the height of the lower end surface of the pressure ring (70) is below the cutting edge (511); when the cutter (51) is displaced to the crucible (A), the upper pressing ring (100A) presses the sealing film (30) and is tightly pressed on the upper end surface of the lower pressing ring (100B).

7. The ingredient blending apparatus of claim 6, wherein: The elastic connecting piece (90) comprises a guide shaft (91), the shaft core of the guide shaft (91) is parallel to the ring core of the cutter (51), the lower end of the guide shaft (91) is connected with the upper pressing ring (100A), the guide shaft (91) passes through the guide sleeve (92) on the movable seat (80) and forms a guide sliding fit with the guide sleeve (92), a compression spring (93) is sleeved on the shaft body of the guide shaft (91) between the movable seat (80) and the upper pressing ring (100A), the upper end of the guide shaft (91) is connected with a limiting cap (94), the size of the limiting cap (94) is greater than the hole diameter of the guide sleeve (92).

8. The ingredient blending apparatus of claim 5, wherein: The movable seat (80) is connected with a tamping rod (61), the tamping rod (61) is located at the center of the pressure ring (70) and the rod core of the tamping rod (61) is arranged coaxially with the ring core of the cutter (51), the lower end of the tamping rod (61) is connected with a disc-shaped tamping head (62), when the movable seat (80) is in the initial position, the tamping head (62) is located above the pressure ring (70); when the movable seat (80) is in a terminal position when the cutter (51) cuts the film slice (B) on the sealing film (30), the tamping head (62) is located below the pressure ring (70).

9. The ingredient blending apparatus of claim 5, wherein: A connecting table (110) is arranged on the base plate (11), the pressure ring (70) is connected with the connecting table (110) through a connecting rod (71), the movable seat (80) is located below the connecting table (110), and a through hole (82) corresponding arranged on the movable seat (80) is used for allowing the rod body of the connecting rod (71) to freely pass through.

10. The ingredient blending apparatus of claim 9, wherein: A limiting guide column (120) extending upward is connected to the movable seat (80), the column core direction of the limiting guide column (120) is parallel to the ring core direction of the cutter (51), the limiting guide column (120) passes through the guide sleeve (121) on the connecting table (110) and forms a guide sliding fit with the guide sleeve (121).

11. The ingredient blending apparatus of claim 2, wherein: A protective box (13) with an open bottom is arranged on the base plate (11), the protective box (13) covers the outside of the sealing film (30), the cutting unit (50) and the film tamping unit (60), and the supporting frame (20) is located outside the protective box (13).

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