Material transfer assembly

Abstract

The utility model relates to the technical field of powder engineering, and discloses a material transfer component, which comprises a base body, a material transfer component, a material transfer component, a material transfer component and a material transfer component. The base body is internally provided with a cavity, and two opposite sides of the cavity are communicated with the outside to form an inlet and an outlet; the core body is rotatably embedded in the cavity, and the shape of the core body is matched with that of the cavity; a channel penetrates through the adapter tube; the adapter pipe is communicated with the inlet or the outlet; a containing groove is concavely formed in the core body, and the core body has a closed state that a groove opening of the containing groove correspondingly abuts against the inner wall of the cavity; according to the material transfer assembly provided by the utility model, the core body which can be controlled to flexibly rotate is arranged, so that an operator can easily switch the material transfer assembly among three states of feeding, storage and discharging without complicated cover opening and closing operations, and the feeding and discharging can be realized only by driving the core body to rotate through the handle without additional tools or equipment; the method is simple and visual, greatly simplifies the operation process, adapts to complex operation environments, reduces the operation difficulty of special materials, and is high in practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to powder engineering technical field, concretely relates to a material transfer assembly. BACKGROUND

[0002] Powder engineering is an engineering technology for researching powder materials and its preparation, processing, treatment and application, and its application range is extremely wide, including but not limited to medicine manufacturing, food processing, nuclear industry and other key industries.

[0003] The engineering field is mainly related to a series of complex and delicate treatment processes such as crushing, storage and conveying, and the material feeding and discharging transfer operation is one of the key links between these treatment processes.

[0004] However, in the existing feeding and discharging operation, ordinary containers are often used, and workers need to go through many operation steps in the process of receiving, storing and feeding materials, which is overall inconvenient; especially in the production of special materials in powder engineering, the special materials refer to toxic materials, and the special materials are often arranged in glove boxes, shielded glove boxes or hot rooms and other isolated sealed boxes, and need to be operated by gloves or mechanical hands. Based on the existing material transfer operation mode, the transfer of special materials is more laborious, which affects the production process. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model provides a material transfer assembly to solve the problems of inconvenient feeding and discharging operation and difficult material transfer operation in the production of special materials.

[0006] The utility model provides a material transfer assembly, which comprises a base body with a cavity inside, the cavity is communicated with the outside along the opposite sides of the first direction to form an inlet and an outlet; a core body rotatably embedded in the cavity of the base body, the shape of the core body is matched with the cavity, and the at least partial wall of the core body is in contact with the inner wall of the cavity; an adapter pipe with a channel; one end of the adapter pipe is communicated with the inlet or the outlet, and the other end is adapted to be communicated with external equipment; a material containing groove is recessed on the core body, the groove opening of the material containing groove is in closed state corresponding to the abutment of the inner wall of the cavity; at least two ear parts are protruded on the opposite sides of the core body along the second direction, the at least two ear parts are rotatably inserted in the base body, and the second direction is perpendicular to the first direction; at least one ear part is communicated with the outside, and the core body is driven to rotate around the second direction by the ear part, so that the material containing groove is respectively communicated with the inlet or the outlet.

[0007] In an alternative embodiment, the adapter pipe comprises a pipe portion and a disc portion sleeved on the periphery of the pipe portion; the passage is arranged through the pipe portion, and the pipe portion on the two sides of the disc portion is defined as a first pipe portion and a second pipe portion, respectively; the first pipe portion is adapted to be detachably inserted into the inlet or outlet, so that the passage is in communication with the material tank; and the second pipe portion is adapted to be in communication with external equipment.

[0008] In an alternative embodiment, a guide surface is formed on the inner wall of the pipe opening of the first pipe portion, and the shape of the guide surface is adapted to the shape of the core body, so that the guide surface is in smooth and continuous arrangement with the outer wall of the core body when the material tank is in communication with the passage.

[0009] In an alternative embodiment, the ear portion in communication with the outside is defined as a supporting ear, and a clamping groove is arranged at the supporting ear, which is adapted to be clamped and matched with the handle to drive the rotation of the supporting ear and the core body.

[0010] In an alternative embodiment, an air extraction ring hole is arranged in the disc portion around an axis, a first straight hole is arranged in the disc portion along the radial direction, one end of the first straight hole is in communication with the air extraction ring hole, and the other end is in communication with the outside; a second straight hole is arranged in the wall of the first pipe portion along the axial direction, and a V-shaped ring groove is formed by the recess of part of the wall of the first pipe portion; one end of the second straight hole is in communication with the air extraction ring hole, and the other end is in communication with the V-shaped ring groove.

[0011] In an alternative embodiment, the base body comprises a first valve body and a second valve body; the first valve body and the second valve body are in abutment and are fixed by means of fasteners; a sealing strip is arranged at the abutment position of the first valve body and the second valve body; wherein part of the cavity is arranged at the first valve body and the second valve body, respectively, and the first valve body and the second valve body are in corresponding abutment to form the cavity; the inlet is arranged at the first valve body, and the outlet is arranged at the second valve body.

[0012] In an alternative embodiment, the core body is spherical; the cavity has a part of spherical inner wall; and the guide surface is a part of spherical surface.

[0013] In an alternative embodiment, further comprising a plurality of cleaning holes, each of which is arranged at the first valve body and the second valve body, and is in communication with the cavity; and a thread plug is arranged to detachably block the cleaning hole.

[0014] In an alternative embodiment, further comprising a first sealing portion, the first sealing portion is provided with a plurality of sealing portions, respectively arranged at the joint position of the core and the first valve body, and the joint position of the core and the second valve body; a second sealing portion, the second sealing portion is provided with a plurality of sealing portions, respectively arranged at the opening position of the inlet, and the opening position of the outlet; a third sealing portion, sleeved on the peripheral portion of the first pipe portion.

[0015] In an alternative embodiment, the slot of the clamping groove is in the shape of a U, and the opening direction of the U-shaped opening of the clamping groove corresponds to the opening direction of the opening of the material containing groove.

[0016] Beneficial effects: provide efficient and convenient material transfer effect, greatly simplify the operation process, by setting the core can be controlled flexible rotation, so that the operator can easily switch between the feeding, storage and discharging three states, without complex cover opening and closing operation, thereby significantly improving the efficiency of material transfer; the operator only needs to drive the core through the handle to rotate, so as to realize the feeding and discharging operation of the material, without additional tools or equipment, simple and intuitive, at the same time, the material containing groove on the core can temporarily store the material, ensuring the stability and continuity of the material in the transfer process.

[0017] Beneficial effects: reduce material pollution, by setting the adapter pipe which can be detachably inserted at the inlet or outlet, not only ensures the smoothness of material transfer, but also reduces the contamination of the inlet and outlet parts of the container during the transfer process, at the same time, avoids the risk of material leakage and pollution, high practicability.

[0018] Beneficial effects: adapt to complex working environment, for the process equipment arranged in the glove box, shielded glove box or hot cell, etc. The material transfer assembly can simplify the feeding and discharging work, and realize the operation difficulty, so that the operation in the limited environment becomes more feasible and efficient. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0020] Figure 1 is a front view of the base body of the present application;

[0021] Figure 2 is a front view of the base body of the present application Figure 1 is a sectional view of the base body along the A-A direction of the present application;

[0022] Figure 3 is a side view of the base body of the utility model;

[0023] Figure 4 is a top view of the base body of the utility model Figure 3 is a sectional view of the base body along B-B direction;

[0024] Figure 5 is a top view of the base body of the utility model;

[0025] Figure 6 is a top view of the base body of the utility model Figure 5 is a sectional view of the base body along C-C direction;

[0026] Figure 7 is a schematic view of the adapter pipe of the utility model;

[0027] Figure 8 is a top view of the base body of the utility model Figure 7 is a sectional view of the adapter pipe along D-D direction;

[0028] Figure 9 is a schematic view of the material transfer assembly of the utility model in the feeding state;

[0029] Figure 10 is a top view of the base body of the utility model Figure 9 is a sectional view of the material transfer assembly along E-E direction;

[0030] Figure 11 is a schematic view of the material transfer assembly of the utility model in the discharging state;

[0031] Figure 12 is a top view of the base body of the utility model Figure 11 is a sectional view of the material transfer assembly along F-F direction.

[0032] Explanation of reference signs:

[0033] 1, base body;

[0034] 11, first valve body; 111, inlet;

[0035] 12, second valve body; 121, outlet; 122, sealing strip;

[0036] 13, cavity; 14, cleaning hole; 15, first sealing part; 16, second sealing part; 17, fastener; 18, dust plug; 19, plug;

[0037] 2, core body; 21, material containing groove; 22, ear part; 23, clamping groove; 24, shaft sleeve;

[0038] 3, adapter pipe; 31, passage;

[0039] 32, disc portion; 321, suction ring hole; 322, first straight hole;

[0040] 33, first tube portion; 331, second straight hole; 332, V-shaped ring groove;

[0041] 34, second tube portion; 35, guide surface; 36, third sealing portion. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application.

[0043] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0044] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. Those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0045] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0046] The embodiments of the present application will be described below in combination with Figures 1 to 12 The embodiments of the present application will be described below in combination with

[0047] According to the embodiments of the present application, a material transfer assembly is provided, which comprises:

[0048] On the one hand, in combination with Figures 1 to 6As shown, the material transfer assembly comprises a transfer container, which comprises a base 1 having a cavity 13 inside, the cavity 13 being in communication with the outside along opposite sides in a first direction, forming an inlet 111 and an outlet 121; a core 2 rotatably embedded in the cavity 13 of the base 1, the core 2 being adapted to the shape of the cavity 13, and at least part of the wall of the core 2 being in contact with the inner wall of the cavity 13.

[0049] The base 1 and the core 2 are matched in the form that the base 1 comprises a first valve body 11 and a second valve body 12, each having a hemispherical accommodating cavity at the corresponding position, the first valve body 11 and the second valve body 12 are in correspondence and the hemispherical accommodating cavities are engaged together to form a spherical cavity 13; the inlet 111 is provided through the first valve body 11 and the outlet 121 is provided through the second valve body 12; the inlet 111 and the outlet 121 form a material channel 31; the core 2 is in the form of a sphere and is matched and embedded in the cavity 13.

[0050] Specifically, the structure of the core 2 further comprises a material containing groove 21 recessed and formed at the core 2, the material containing groove 21 being a one-side opening groove; the core 2 has a slot opening of the material containing groove 21 in correspondence with the inner wall of the cavity 13 in a closed state, which can temporarily store material in the material containing groove 21.

[0051] The core 2 works in the form that at least two ears 22 are protruded and formed at opposite sides of the core 2 in a second direction, the at least two ears 22 are rotatably inserted into the base 1 by means of a shaft sleeve 24, and the second direction is perpendicular to the first direction; the first direction is a vertical direction perpendicular to the horizontal plane, and the second direction is parallel to the horizontal plane; at least one ear 22 is in communication with the outside, and is adapted to drive the core 2 to rotate around the second direction by means of the ear 22, so that the material containing groove 21 is in correspondence with the inlet 111 or the outlet 121, and the core 2 is in the state of feeding or discharging.

[0052] Further, the ear 22 in communication with the outside is defined as a supporting ear, the supporting ear is provided with a clamping groove 23, the cross-sectional shape of the clamping groove 23 is U-shaped, and the clamping groove 23 is adapted to be clamped and matched with a handle to drive the supporting ear and the core 2 to rotate.

[0053] On the other hand, in combination with Figure 7 and Figure 8 As shown, the material transfer assembly further comprises a transfer adapter, which is an adapter pipe 3, the adapter pipe 3 is provided with a channel 31; one end of the adapter pipe 3 is in communication with the inlet 111 or the outlet 121, and the other end is adapted to be in communication with external equipment; the setting of the adapter pipe 3 ensures the stability of the connection and the smoothness of the material transfer.

[0054] Specifically, the structure of the adapter pipe 3 is that the adapter pipe 3 comprises a pipe portion and a disc portion 32 sleeved on the peripheral portion of the pipe portion; the passage 31 is arranged through the pipe portion, and the pipe portion on the opposite sides of the disc portion 32 is defined as a first pipe portion 33 and a second pipe portion 34, respectively; the first pipe portion 33 is suitable for being detachably inserted into the inlet 111 or the outlet 121, so that the passage 31 is in communication with the material container groove 21; and the second pipe portion 34 is suitable for being in communication with external equipment.

[0055] In summary, in combination with Figures 9 to 12 As shown, the specific use mode of the material transfer assembly is that, in the initial state, the core 2 is located in the spherical cavity 13 of the base 1, and the opening of the material container groove 21 on the core 2 is in a closed state in corresponding abutment with the inner wall of the cavity 13; when preparing to feed, the operator inserts the handle into the clamping groove 23 of the lug and confirms the position of the material source equipment, installs the adapter pipe 3 between the inlet 111 and the material source equipment, inserts the first pipe portion 33 of the adapter pipe 3 into the inlet 111, contacts the outer peripheral wall of the first pipe portion 33 with the inner peripheral wall of the inlet 111, clamps the disc portion 32 at the edge of the inlet 111, and connects the second pipe portion 34 with the discharge port of the material source equipment; during the feeding process, the operator rotates the handle to drive the core 2 to rotate, so that the opening of the material container groove 21 is gradually aligned with the inlet 111; after the opening of the material container groove 21 is completely aligned with the inlet 111, the material is transferred into the material container groove 21, and the material sequentially passes through the adapter pipe 3, the inlet 111, and enters the material container groove 21; when the material container groove 21 is filled with material, the core 2 is continuously rotated by the handle, so that the opening of the material container groove 21 is in corresponding abutment with the inner wall of the cavity 13, to temporarily close the material container groove 21 to store the material, and the adapter pipe 3 is removed; when the material is transferred to the target equipment, the adapter pipe 3 is installed between the outlet 121 and the target equipment, the first pipe portion 33 of the adapter pipe 3 is inserted into the outlet 121, the second pipe portion 34 is connected with the feeding port of the target equipment, the operator continues to rotate the core 2 by the handle, so that the opening of the material container groove 21 is gradually aligned with the outlet 121, the material in the material container groove 21 is released into the adapter pipe 3, and flows to the target equipment outside through the adapter pipe 3; after the material is completely transferred to the target equipment, the operator can rotate the core 2 again, so that the material container groove 21 returns to the closed state in abutment with the inner wall of the cavity 13, the adapter pipe 3 is removed, and the handle is taken out of the clamping groove 23 of the lug, to complete the whole material transfer process.

[0056] Preferably, in the actual application of the feeding operation, a plurality of containers can be installed in series according to the requirements of the material transfer operation, to improve the convenience of the material transfer operation; the series installation mode can be that the bases 1 of the containers are fixed together by connecting members or supports, to ensure that the relative positions between the containers are stable, and the inlets 111 and the outlets 121 are corresponding to each other, to form a material conveying passage 31.

[0057] In one aspect, the embodiment provides efficient and convenient material transfer effect, greatly simplifies the operation process: by setting the controllable flexible rotating core 2, so that the operator can easily switch between the feeding, storage and discharging three states, without complex cover opening and closing operation, thereby significantly improving the efficiency of material transfer; the operator only needs to drive the core 2 to rotate through the handle, so as to realize the feeding and discharging operation of the material, without additional tools or equipment, simple and intuitive, at the same time, the material storage groove 21 on the core 2 can temporarily store the material, ensuring the stability and continuity of the material in the transfer process.

[0058] In another aspect of the embodiment, the material pollution is reduced: by setting the adapter pipe 3 which can be detachably plugged at the inlet 111 or outlet 121, not only the smoothness of material transfer is ensured, but also the pollution of the inlet and outlet 121 of the container during the transfer process is reduced, at the same time, the risk of material leakage and pollution is avoided, which has strong practicability.

[0059] In still another aspect of the embodiment, the complex operation environment is adapted to: for the process equipment arranged in the glove box, shielded glove box or hot cell and other sealed box, the material transfer assembly can simplify the feeding and discharging work, realize the operation difficulty, and make the operation in the limited environment more feasible and efficient.

[0060] In some embodiments, a guide surface 35 is formed at the inner wall of the pipe opening of the first pipe portion 33, the shape of the guide surface 35 is matched with the shape of the core 2, and the guide surface 35 is smoothly and continuously arranged with the outer wall of the core 2 when the material storage groove 21 and the channel 31 correspondingly communicate.

[0061] Specifically, the guide surface 35 is a partial spherical surface, the size and shape of the guide surface 35 are matched with the outer spherical surface of the core 2, so as to ensure that the core 2 does not interfere with the pipe opening of the adapter pipe 3 when rotating, the core 2 is smoothly rotated to the position aligned with the inlet 111 or outlet 121, and the gap between the channel 31 and the material storage groove 21 is reduced, the material is guided to smoothly fall into the material storage groove 21, and the material is prevented from being stuck in the gap.

[0062] In some embodiments, a gas extraction ring hole 321 is formed in the disc portion 32 around the axis, a first straight hole 322 is radially formed in the disc portion 32, one end of the first straight hole 322 communicates with the gas extraction ring hole 321, and the other end communicates with the outside; a second straight hole 331 is axially formed in the wall of the first pipe portion 33, and a V-shaped ring groove 332 is formed in part of the wall of the first pipe portion 33; one end of the second straight hole 331 communicates with the gas extraction ring hole 321, and the other end communicates with the V-shaped ring groove 332.

[0063] Specifically, after the feeding operation is completed, the core 2 is in a closed state before and after, twice through the hole of the disc part 32 and the first tube part 33 to the feeding port to extract residual material, clean the container feeding port part; wherein, the first tube part 33 is inserted at the inlet 111, the second straight hole 331 is communicated with the inlet 111 through the V-shaped ring groove 332, the external air extraction device is connected with the first straight hole 322, and the inlet 111 is sequentially extracted through the first straight hole 322, the air extraction ring hole 321, the second straight hole 331 and the V-shaped ring groove 332 to extract the residual material.

[0064] After the discharging operation is completed, the core 2 is in a closed state before and after, twice through the hole of the disc part 32 and the first tube part 33 to the discharging port to extract residual material, clean the container discharging port part; wherein, the first tube part 33 is inserted at the outlet 121, the second straight hole 331 is communicated with the outlet 121 through the V-shaped ring groove 332, the external air extraction device is connected with the first straight hole 322, and the outlet 121 is sequentially extracted through the first straight hole 322, the air extraction ring hole 321, the second straight hole 331 and the V-shaped ring groove 332 to extract the residual material.

[0065] In some embodiments, the first valve body 11 and the second valve body 12 are in abutment and are fixed by means of a fastener 17; the fastener 17 can be a screw, a deep hole for screw fixation is provided at the first valve body 11 or the second valve body 12, and a dust plug 18 is inserted in the deep hole after the screw is installed; a sealing strip 122 is provided at the abutment position of the first valve body 11 and the second valve body 12 to prevent material leakage at the joint surface; wherein, a part of the chamber is respectively provided at the first valve body 11 and the second valve body 12, and the first valve body 11 and the second valve body 12 correspondingly abut to form the cavity 13; the inlet 111 is provided at the first valve body 11, and the outlet 121 is provided at the second valve body 12.

[0066] In some embodiments, the core 2 is spherical; the cavity 13 has a part of spherical inner wall, and the guide surface 35 is a part of spherical surface.

[0067] In some embodiments, further comprising a cleaning hole path 14, a plurality of cleaning hole paths 14 are respectively provided at the first valve body 11 and the second valve body 12, and the cleaning hole path 14 is communicated with the cavity 13; a plug 19 is provided to detachably block the cleaning hole path 14.

[0068] Specifically, the cleaning hole path 14 is used for daily cleaning and maintenance work, and the cleaning hole path 14 is blocked outside by the plug 19 in the normal working state; during the periodic cleaning and maintenance of the container, the plug 19 can be removed and connected with the air extraction pipeline to clean the internal accumulated material.

[0069] In some embodiments, further comprising a first sealing part 15, which can be a rubber sealing ring, provided with a plurality of sealing parts respectively arranged at the joint position of the core 2 and the first valve body 11 and the joint position of the core 2 and the second valve body 12, for avoiding the material in the flow channel from entering the gap between the two core 2 and the cavity 13; a second sealing part 16, which can be a rubber sealing ring, provided with a plurality of sealing parts respectively arranged at the opening position of the inlet 111 and the opening position of the outlet 121, for cooperating with the adapter pipe 3 to assist in sealing during the feeding and discharging operation; a third sealing part 36, which can be a rubber sealing ring, sleeved on the peripheral part of the first pipe part 33 of the adapter pipe 3, and the peripheral part of the first pipe part 33 is provided with a trapezoidal ring groove, and the third sealing part 36 is installed in the trapezoidal ring groove.

[0070] In some embodiments, the slot opening of the clamping groove 23 is in a U shape, and the direction of the U-shaped opening of the clamping groove 23 corresponds to the direction of the opening of the material storage groove 21, which can be used as an indicator of the opening direction of the material storage cavity, so as to facilitate the operator to know the opening direction of the material storage cavity and facilitate the feeding and discharging operation.

[0071] Obviously, the above embodiments are only examples for clearly illustrating, and are not a limitation on the embodiments. Although the embodiments of the present application are described in conjunction with the drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations all fall within the scope of the present application.

Claims

1. A material transfer assembly, characterized in that, include: The matrix (1) has a cavity (13) inside, and the cavity (13) is connected to the outside on opposite sides along the first direction to form an inlet (111) and an outlet (121); The core (2) is rotatably embedded in the cavity (13) of the base (1), the core (2) is adapted to the shape of the cavity (13), and at least part of the wall of the core (2) is in contact with the inner wall of the cavity (13); A transfer pipe (3) is provided with a passage (31); one end of the transfer pipe (3) is connected to the inlet (111) or the outlet (121), and the other end is suitable for connecting to external equipment; The core (2) has a recessed material groove (21) formed therein, and the core (2) has a closed state in which the opening of the material groove (21) abuts against the inner wall of the cavity (13). The core (2) has at least two ears (22) protruding from opposite sides along the second direction, and the at least two ears (22) are rotatably inserted into the base (1), and the second direction is perpendicular to the first direction; At least one ear (22) is connected to the outside world and is adapted to drive the core (2) to rotate in a second direction by means of the ear (22), so that the material container (21) is connected to the inlet (111) or outlet (121) respectively.

2. The material transfer assembly according to claim 1, characterized in that, The transfer pipe (3) includes a pipe section and a disc section (32) sleeved around the periphery of the pipe section; The channel (31) is provided through the tube section, and the tube sections located on opposite sides of the disc section (32) are defined as the first tube section (33) and the second tube section (34); The first tube (33) is adapted to be detachably inserted into the inlet (111) or outlet (121) so that the channel (31) is correspondingly connected to the material container (21); The second tube (34) is adapted to be connected to external equipment.

3. The material transfer assembly according to claim 2, characterized in that, The inner wall of the first tube (33) is formed with a guide surface (35). The shape of the guide surface (35) is adapted to the shape of the core (2). When the material container (21) and the channel (31) are connected, the guide surface (35) and the outer wall of the core (2) are smoothly and continuously arranged.

4. The material transfer assembly according to claim 1, characterized in that, The ear (22) that communicates with the outside world is defined as the support ear. The support ear is provided with a snap-fit ​​groove (23), which is adapted to engage with the handle to drive the support ear and the core (2) to rotate.

5. The material transfer assembly according to claim 2, characterized in that, The disk portion (32) has an air extraction ring hole (321) around its axis, and a first straight hole (322) is provided radially inside the disk portion (32). One end of the first straight hole (322) is connected to the air extraction ring hole (321), and the other end is connected to the outside. The first tube (33) has a second straight hole (331) axially formed in the wall of the first tube (33), and a V-shaped annular groove (332) is formed in part of the wall of the first tube (33). One end of the second straight hole (331) is connected to the suction ring hole (321), and the other end is connected to the V-shaped ring groove (332).

6. The material transfer assembly according to claim 2, characterized in that, The base (1) includes a first valve body (11) and a second valve body (12); The first valve body (11) abuts against the second valve body (12) and is fixed by means of fasteners (17); A sealing strip (122) is provided at the contact position between the first valve body (11) and the second valve body (12); The first valve body (11) and the second valve body (12) are respectively provided with partial chambers, and the first valve body (11) and the second valve body (12) are connected to each other to form the cavity (13); The inlet (111) is located at the first valve body (11), and the outlet (121) is located at the second valve body (12).

7. The material transfer assembly according to claim 3, characterized in that, The core (2) is spherical; The cavity (13) has a partially spherical inner wall; The guiding surface (35) is a partially spherical surface.

8. The material transfer assembly according to claim 6, characterized in that, It also includes cleaning holes (14), and a plurality of cleaning holes (14) are respectively disposed at the first valve body (11) and the second valve body (12), and the cleaning holes (14) are connected to the cavity (13); A plug (19) is provided to detachably seal the cleaning passage (14).

9. The material transfer assembly according to claim 6, characterized in that, It also includes a first sealing part (15), which has multiple first sealing parts (15) respectively disposed at the contact position between the core (2) and the first valve body (11) and at the contact position between the core (2) and the second valve body (12); The second sealing part (16) is provided in multiple ways, and is respectively provided at the opening position of the inlet (111) and the opening position of the outlet (121); The third sealing part (36) is fitted around the periphery of the first tube part (33).

10. The material transfer assembly according to claim 4, characterized in that, The slot of the snap-fit ​​groove (23) is U-shaped, and the orientation of the U-shaped opening of the snap-fit ​​groove (23) corresponds to the orientation of the opening of the material container (21).

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