CN209796022U - Adjustable dispensing device for a mixing and packaging machine - Google Patents

Abstract

The utility model relates to a technical field of mixing packagine machine, concretely relates to adjustable distributor for mixing packagine machine for the material is got to automatic distribution ration volume, its characterized in that: the adjustable distribution device comprises a storage bin, a strickling piece, a material tray, a turntable and an adjusting screw rod; the material tray, the rotary disc and the adjusting screw rod are sequentially sleeved on the rotating shaft from top to bottom, and an adjustable volume cup is arranged between the rotary disc and the material tray; the charging tray is internally provided with a discharge door, a strickle part is arranged above the charging tray, the strickle part is provided with a storage bin, and a discharge port of the storage bin is aligned with the discharge door. The utility model has the characteristics of can the automatic distribution ration volume get the material, can adjust the volume of adjustable volume cup at any time when again changing according to the volume of mixing material etc.

Description

Adjustable dispensing device for a mixing and packaging machine

Technical Field

The utility model relates to a technical field of mixing packagine machine, concretely relates to adjustable distributor for mixing packagine machine.

Background

The packaging machine is generally divided into a semi-automatic packaging machine and a full-automatic packaging machine. The automatic packaging machine is mainly used for automatically packaging materials of plant seeds in the industries of food, medicine, chemical industry and the like. The material can be in the form of granule, tablet, liquid, powder, paste, etc. The automatic packaging machine has the functions of automatically completing metering, material filling, bag making, sealing, cutting, conveying, printing production batch numbers, increasing easy cuts, warning of no material, stirring and the like.

After relevant Chinese patent documents are searched, some patent documents are listed as follows:

1. Chinese patent < application No. >200820200260.3< utility model name > fill sealing packaging machine send cup device < abstract > a fill sealing packaging machine send cup device, include the frame, put glass stand and divide cup mechanism to install in the frame, divide cup mechanism to locate and put glass stand below, characterized by: the cup distributing mechanism comprises a driving mechanism and two cup shifting mechanisms, and the two cup shifting mechanisms are respectively arranged on two sides below the cup placing frame; the cup poking mechanism comprises a driving chain wheel, a chain and a driven chain wheel which are assembled together, the driving chain wheel is in transmission connection with the driving mechanism, at least one poking sheet is installed on the chain, and the poking sheets on the chains of the two cup poking mechanisms are identical in quantity and are in one-to-one correspondence with each other in position.

2. The invention relates to the technical field of packaging materials, in particular to an automatic packaging machine, which belongs to the technical field of Chinese patent < application number >201110346012.6< invention name >. In order to solve the problem that the prior art cannot automatically measure specified values of viscous materials, the invention provides the following technical scheme. An automatic packaging machine comprising: the automatic packaging machine comprises a rack (4), conveying equipment, packaging equipment (23) and an automatic control circuit; the method is characterized in that: the measuring device includes: the rotary table mechanism and the knockout mechanism; carousel mechanism includes: the rotary plate (16) is a rotary sub-mechanism for driving and controlling the rotary plate (16) to rotate; more than one material measuring cup (21) is arranged in the rotary disc (16); the feeding device sends the materials into the measuring cup (21), and after the turntable (16) rotates for a specified angle, the materials in the measuring cup (21) are separated by the material beating mechanism and sent to the packaging equipment (23) for packaging.

3. Chinese patent < application No. >201721868087.X < utility model name > a spatial structure's fodder mixing packagine machine < abstract the utility model discloses a spatial structure's fodder mixing packagine machine, including the organism, a plurality of feed inlets have been seted up at the top of organism, and mixed discharge gate has been seted up to the bottom of organism, is provided with in the organism: the storage cavities are respectively communicated with the feeding holes in a one-to-one correspondence manner, and the bottom of each storage cavity is provided with a discharging hole; the spiral conveying mechanisms are respectively arranged below the material storage cavities in a one-to-one correspondence manner, a feed inlet of each spiral conveying mechanism is communicated with a discharge outlet of each material storage cavity, and a discharge outlet of each spiral conveying mechanism extends to a mixed discharge outlet and is communicated with the mixed discharge outlet; and the feed packing box is positioned below the mixed discharge hole.

4. The Chinese patent < application No. 201620321767.9< invention name > a solid-liquid mixture packing machine < abstract > the utility model discloses a solid-liquid mixture packing machine, it includes the workstation, set up the wrapping bag packaging hardware in the workstation both sides respectively, the feed bin that has the oil-well pump, lead oil pipe, the feed bin I of setting on the workstation, feed bin II, lead the feed bin, feed bin I, feed bin II, the guide bin is fixed on the workstation through hollow cylinder respectively, divide into a plurality of storage cavities in the guide bin, the below of leading the feed bin is equipped with foraminiferous plectane, the guide bin is being hugged closely to the plectane, guide bin exit is equipped with guide mechanism, it is equipped with the nozzle of taking the counter to lead oil pipe, the nozzle of taking the counter passes through fixing device to be fixed on wrapping bag packaging hardware, the export of guide mechanism, the nozzle of taking the counter is arranged in respectively and is made the wrapping bag internal.

5. Chinese patent < application No. >201420603497.1< utility model name > a vertical pair bag packagine machine < abstract > the utility model discloses a vertical pair bag packagine machine, wherein be equipped with the measurement in proper order and throw material device, bag former, sealing device, cut the device: the metering and feeding device consists of a rotary disc volumetric metering and feeding device and a pneumatic piston metering and feeding device and is used for respectively feeding two different materials into two feeding channels of the same former; the bag former is a single-mode double-channel former and is provided with two containing cavities and two feeding channels; the heat sealing device consists of a hot-pressing roller type vertical sealing device and a clamping plate type horizontal sealing device which are driven independently.

In the packaging machine of the prior patent document, the volume of the volume cup cannot be adjusted on site according to the requirement, so that the volume of the volume cup is changed, or the volume cup is fixed and cannot be replaced; accordingly, there is a need for improvements in the art that overcome the above-mentioned deficiencies.

Disclosure of Invention

An object of the utility model is to prior art's defect, and provide an adjustable distributor for mixing packagine machine, adjustable volume cup among this mixing packagine machine can adjust so that realize accurate volume and get according to the volume of the required each composition of product, satisfies the volume and gets the required quantity of different materials, unloads to mixing the funnel, in the same wrapping bag is guided to through mixing the funnel.

In order to realize the above-mentioned the utility model discloses an aim at, the technical scheme who takes is:

An adjustable distribution device for a mixing and packaging machine is used for automatically distributing and quantitatively measuring materials, and comprises a storage bin, a leveling part, a material tray, a rotary disc and an adjusting screw rod; the material tray, the rotary disc and the adjusting screw rod are sequentially sleeved on the rotating shaft from top to bottom, and an adjustable volume cup is arranged between the rotary disc and the material tray; the charging tray is internally provided with a discharge door, a strickle part is arranged above the charging tray, the strickle part is provided with a storage bin, and a discharge port of the storage bin is aligned with the discharge door.

Furthermore, the scraping piece is connected with a support piece through an adjusting rod provided with a first spring, and the support piece is connected and fixed on the side wall of the discharging door.

Furthermore, the adjustable volume cup comprises an upper cup body and a lower cup body, and the upper cup body is slidably mounted in the lower cup body.

Furthermore, a discharge hole at the bottom of the turntable of the volume-adjustable cup is provided with a discharge door.

Furthermore, the blanking door is connected to the bottom of the rotary table through a fixing screw rod provided with an elastic pressing piece.

further, the elastic pressing piece is a spiral spring.

furthermore, a baffle is arranged on the side wall of one end of the notch below the strickle.

Furthermore, an opening and closing piece for opening and closing the blanking door is arranged below the bottom of the rotary plate.

Further, the opening and closing part comprises a support, a pushing part and a closing part, and the pushing part and the closing part are respectively arranged on two sides of the top of the support.

Further, a mixing and packaging machine equipped with an adjustable dispensing device for mixing and packaging machines according to the claims, characterized in that: the adjustable distribution device can limit the number of the materials to be mixed on the mixing and packaging machine according to the variety and the number of the materials to be mixed.

Compared with the prior art, the utility model, outstanding substantive characteristics and the progress that is showing that have:

1. the utility model overcomes the defect that the volume of the volume cup can not be adjusted by itself in the prior art, and when the amount of the required materials is changed, the volume cup can only be replaced in the prior art, which not only takes time, but also increases the production cost; the utility model discloses a volume cup comprises last cup and lower cup, goes up cup slidable mounting on cup down, reciprocates through adjusting screw regulation carousel, and then realizes the volume change of adjustable volume cup.

2. The utility model discloses in strickle the piece to material distribution in the charging tray to the through-hole of charging tray in, and be the one end of installing adjustable volume cup in the through-hole, with material distribution get into adjustable volume cup in, and for preventing that the material from spilling from strickleing the clearance between piece and the charging tray, install the baffle on strickleing the piece, can prevent effectively that the material from spilling in the clearance.

3. In the utility model, a discharge port of the adjustable volume cup at the bottom of the turntable is provided with a blanking door which is in collision contact with an opening and closing part arranged below the bottom of the turntable, and the opening and closing part enables the blanking door and the bottom of the adjustable volume cup to realize two actions of automatic opening and closing; the blanking door is connected with the rotary table through a fixing screw rod provided with an elastic pressing piece, and the elastic pressing piece has upward extrusion acting force on the blanking door, so that good airtightness is kept between the blanking door and the rotary table.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of an adjustable dispensing device for a mixing and packaging machine according to the present invention;

Fig. 2 is a schematic structural view of an adjustable dispensing device for a mixing and packaging machine according to the present invention;

FIG. 3 is a schematic structural view of the installation relationship between the volume-adjustable cup and the blanking door;

FIG. 4 is a schematic structural view of the shutter;

FIG. 5 is a schematic structural view of a blanking door;

FIG. 6 is a schematic view of the construction of the strike-off member;

Element names and serial numbers in the drawings: adjustable dispensing device 1, shutter 2, support member 3, chute 4, packaging bag 5, cutter 6, bag-pulling roller 7, heat sealer 8, control panel 9, former 10, mixing funnel 11, photoelectric eye 12, support rod 13, support upright 14, support frame 15, support piece 16, packaging bag strip 17, support shaft 18, conveying roller 19, support 20, push-open piece 21, closure piece 22, blocking end 23, collision end 24, through hole 25, upper cup 26, lower cup 27; the device comprises a storage bin 100, a fixing part 101, a viewing opening 102, a scraping part 103, an adjusting rod 104, a first spring 105, a supporting part 106, a discharging door 107, an adjustable volume cup 108, a turntable 109, an adjusting screw 110, a rotating shaft 111, a shaft protecting part 112, a baffle 113, a material tray 114, a stand column 115, a supporting part 116, a reinforcing part 117, a discharging door 118, a fixing screw 119, an elastic pressing part 120, a supporting seat 150, a supporting rod 151, a first rotating shaft 152 and a second rotating shaft 153.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 5, an adjustable dispensing device for a mixing and packaging machine for automatically dispensing a metered quantity of material, the adjustable dispensing device 1 comprising a magazine 100, a strike-off member 103, a tray 114, a turntable 109 and an adjusting screw 110; the material tray 114, the turntable 109 and the adjusting screw 110 are sequentially sleeved on the rotating shaft 111 from top to bottom, and the volume-adjustable cup 108 is arranged between the turntable 109 and the material tray 114; a discharge door 107 is arranged in the tray 114, a leveling part 103 is arranged above the tray, a bin 100 is arranged on the leveling part 103, and a discharge port of the bin 100 is aligned with the discharge door 107; the discharge hole of the adjustable volume cup 108 at the bottom of the rotating disc 109 is provided with a discharge door 118.

The number of the adjustable volume cups 108 between the turntable 109 and the tray 114 can be designed to be more than 1 according to the requirement.

the adjustable volume cup 108 includes an upper cup 26 and a lower cup 27, with the upper cup 26 slidably mounted within the lower cup 27.

The blanking door 118 is connected to the bottom of the turntable 109 through a fixed screw 119 provided with an elastic pressing piece 120; the fixing screw 119 rotates to elastically deform the elastic pressing member 120; the elastic pressing piece 120 can upwards extrude the blanking door 118 through elastic deformation, so that the blanking door 118 can have good tightness with the bottom of the turntable 109, and material side leakage is prevented.

The elastic pressing member 120 is a coil spring.

The rotating shaft 111 is also provided with a shaft protecting part 112 for protecting the rotating shaft 111 to work normally; the rotating shaft 111 is driven by the rotating mechanism, and the rotating shaft 111 rotates to drive the tray 114 and the turntable 109 to rotate.

As shown in fig. 5, the blanking door 118 is shaped like a letter B, and the blanking door 118 can be made of rubber, teflon or PPC; the blanking door 118 is divided into a blocking end 23 and an impact end 24, a through hole 25 is arranged at the eccentric position of the impact end 24, and the through hole 25 is beneficial for the fixing screw 119 to penetrate through the blanking door 118; the blocking end 23 is used for blocking the bottom of the adjustable volume cup 108, so that materials are prevented from entering the adjustable volume cup 108 and directly leaking downwards; the impact end 24 impacts to deflect the closed end 23 of the discharge gate 118 away from the bottom of the adjustable volume cup 108, allowing the material to be discharged downwardly.

For the opening and closing of the discharge door 118, by means of the shutter 2 mounted under the bottom of the turntable 109; the opening and closing part 2 comprises a support 20, a push-away part 21 and a closing part 22, wherein the push-away part 21 and the closing part 22 are respectively arranged at two sides of the top of the support 20; when the discharging door 118 rotates to the opening and closing part 2 along with the turntable 109, the collision end 24 on the discharging door 118 collides with the push-open part 21 on the opening and closing part 2, and the discharging door 118 swings inwards, so that the discharging of the volume-adjustable cup 108 is realized; as the rotating occurs, the planar end surface of the inner side of the discharge door 118 collides with the closing member 22 of the opening/closing member 2, and the discharge door 118 is reset, i.e., the blocking end 23 of the discharge door 118 blocks the bottom of the adjustable volume cup 108.

As shown in fig. 4, the shutter 2 has a similar Y-shaped structure, and the discharge door 118 is installed so that the convex side of the discharge door 118 faces outward and the flat end side of the discharge door 118 faces inward when the discharge door 118 is installed so as to rotate through the gap formed by the push-open piece 21 and the closing piece 22.

In order to control the material discharge amount in the storage bin 100, a discharge door 107 is arranged under the discharge port of the storage bin 100; a support 106 is arranged on the side wall of the discharge door 107, the support 106 is connected with the strickle 103 through an adjusting rod 104 provided with a first spring 105, and the support 106 is connected and fixed on the side wall of the discharge door 107; the discharge amount control operation of the bin 100 is as follows: through the rotation of the adjusting rod 104, the adjusting rod 104 rotates left and right, and the adjusting rod 104 is lifted, so as to drive the discharging door 107 to lift, thereby realizing that the discharging door 107 controls the discharging amount of the bin 100.

As shown in fig. 2, a gap is arranged below the leveling member 103, and the gap can facilitate observation of the amount of the material in the leveling member and observation of the state of the material between the leveling member 103 and the material tray 114; the strickling part 103 does not rotate along with the material tray 114, some materials inevitably leak from the gap between the strickling part 103 and the material tray 114 when the material tray 114 rotates, in order to prevent the materials from leaking, a baffle 113 is arranged on the side wall of one end of the notch below the strickling part 103, and the end is positioned in the rotating direction of the material tray 114, so that the baffle 113 prevents the materials from leaking from the gap between the strickling part 103 and the material tray 114 due to the rotation of the material tray 114.

The adjustable distribution device can limit the number of the materials to be mixed on the mixing and packaging machine according to the variety and the quantity of the materials to be mixed.

One end of the leveling part 103 is fixed on the upright column 115, one end of the fixing part 101 is also arranged on the upright column 115, the other end of the fixing part 101 is connected with the storage bin 100, and the fixing part 101 can strengthen and fix the storage bin 100; in order to prevent the scraping piece 103 or the fixing piece 101 from sliding when being installed on the upright column 115, the scraping piece 103 and the fixing piece 101 are respectively provided with an ejecting piece 116 at the bottom connected with the upright column 115, and the ejecting piece 116 can provide an ejecting function and prevent the scraping piece 103 or the fixing piece 101 from sliding downwards due to the action of gravity; to provide reinforcement to the columns 115, reinforcements 117 are installed at the bottom of the columns 115.

The working principle of the adjustable distribution device is as follows: the rotating shaft 111 drives the material tray 114 and the rotating disc 109 to rotate synchronously, materials fall into a space formed by the leveling part 103 and the material tray 114 through a gap between the bin 100 and the discharging door 107, the materials rotate along with the material tray 114, and the materials are scraped into the adjustable volume cup 108 through the action of the leveling part 103, so that the quantitative measurement of the materials is realized.

after the materials are measured, the subsequent unloading operation is as follows: the discharging door 118 at the bottom of the adjustable volume cup 108 rotates with the tray 114, and when the discharging door 118 rotates to the opening and closing part 2, the discharging door collides and contacts with the opening and closing part 2, so that the opening and closing actions are realized.

The mixing and packaging machine is provided with the adjustable distribution device for the mixing and packaging machine, and the number of the adjustable distribution device required to be arranged on the mixing and packaging machine can be limited according to the types and the quantity of materials to be mixed; the device of the present invention is further illustrated for installation in a mixing and packaging machine comprising an adjustable dispensing device 1, a shutter 2, a support member 3, a chute 4, a package 5, a cutter 6, a bag-pulling roller 7, a heat sealer 8, a control panel 9, a former 10 and a mixing hopper 11; the adjustable dispensing device 1 is arranged on the top of the supporting member 3 and is connected with a rotating mechanism arranged in the supporting member 3, and the rotating mechanism drives the turntable 109 and the material tray 114 in the adjustable dispensing device 1 to rotate; a mixing funnel 11 is mounted at the lower part of the front end of the adjustable distribution device 1, a former 10 is mounted on the front end face of the mixing funnel 11, a heat sealer 8 is mounted below the former 10, a bag pulling roller 7 is mounted below the heat sealer 8, a cutter 6 is mounted below the bag pulling roller 7, and a chute 4 is mounted below the cutter 6; the cutter 6, the bag-pulling roller 7, the heat sealer 8, the former 10 and the mixing funnel 11 are all fixedly arranged on the side wall of the front end of the supporting member 3; in order to facilitate the control operation, a control panel 9 is further mounted on the front end side wall of the supporting member 3, and the control panel 9 realizes unified control on the whole operating system.

A packaging bag strip 17 penetrates through the former 10, and the packaging bag strip 17 is made into a packaging bag shape by the former 10; in order to realize automatic conveying of the packaging bag strip 17, the following devices are adopted: a support 16 is installed above the former 10, two ends of the support 16 are respectively provided with a support frame 15, the support frame 15 comprises a support seat 150 and support rods 151, the support seat 150 is provided with two support rods 151, and a first rotating shaft 152 and a second rotating shaft 153 are respectively installed between the corresponding support rods 151 between the two support frames 15; a supporting shaft 18 is arranged above the supporting piece 16, and a conveying roller 19 is arranged on the supporting shaft 18; the supporting piece 16 and the supporting shaft 18 are both fixedly installed on the supporting vertical plate 14, and the supporting vertical plate 14 is fixedly installed on the supporting member 3.

the transmission principle of the packaging bag strip is as follows: the packaging bag strip 17 is wound on the conveying roller 19, the movable end of the packaging bag strip 17 is pulled out, the packaging bag strip passes through the supporting piece 16, the second rotating shaft 153, the first rotating shaft 152, the former 10, the heat sealer 8 and the bag-pulling roller 6, and traction force is provided for the packaging bag strip by the bag-pulling roller 6 through the heat sealer 8 and the bag-pulling roller 6, namely, the packaging bag strip 17 is pulled, so that the packaging bag strip moves downwards according to the setting.

In the transmission process of the packaging bag strip 17, in order to accurately position the packaging bag strip, the packaging bag strip is provided with the color strips, the color strips are identified through the photoelectric eyes 12, and the photoelectric eyes 12 identify the color strips to position the packaging bag strip; the photoelectric eye 12 is arranged above the former 8 and is fixedly arranged on a support rod 13, and the support rod 13 is fixed on a support vertical plate 14.

The packaging bag strip 17 is made into a packaging bag shape through the forming device 10, the packaging bag strip moves to the air heater 8, the bottom and the side of the packaging bag are subjected to heat sealing, materials enter the packaging bag, when the packaging bag strip 17 continuously descends to a set position, the heat sealer 8 seals the top of the packaging bag, the packaging bag strip continuously moves to a position designated by the cutter 6, the cutter 6 cuts the prepared packaging bag and the packaging bag strip 17, the packaging bag 5 falls into the sliding groove 4 below, and the sliding groove 4 guides and slides the packaging bag 5 to the outside of the supporting member 3.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims (10)

1. An adjustable dispensing apparatus for a mixing and packaging machine for automatically dispensing a metered amount of material, characterized by: the adjustable distribution device (1) comprises a storage bin (100), a strickle part (103), a material tray (114), a turntable (109) and an adjusting screw (110); the material tray (114), the rotary disc (109) and the adjusting screw rod (110) are sequentially sleeved on the rotating shaft (111) from top to bottom, and the adjustable volume cup (108) is arranged between the rotary disc (109) and the material tray (114); the material tray (114) is internally provided with a discharge door (107), a leveling part (103) is arranged above the material tray, the leveling part (103) is provided with a stock bin (100), and a discharge hole of the stock bin (100) is aligned with the discharge door (107).

2. The adjustable dispensing apparatus for a mixing and packaging machine as defined in claim 1 wherein: the volume-adjustable cup (108) comprises an upper cup body (26) and a lower cup body (27), and the upper cup body (26) is installed in the lower cup body (27) in a sliding mode.

3. The adjustable dispensing apparatus for a mixing and packaging machine as defined in claim 1 wherein: and a discharge hole of the adjustable volume cup (108) at the bottom of the rotary disc (109) is provided with a discharge door (118).

4. The adjustable dispensing apparatus for a mixing and packaging machine as defined in claim 3 wherein: the blanking door (118) is connected to the bottom of the rotary table (109) through a fixed screw (119) provided with an elastic pressing piece (120).

5. The adjustable dispensing apparatus for a mixing and packaging machine as defined in claim 4 wherein: the elastic pressing piece (120) is a spiral spring.

6. the adjustable dispensing apparatus for a mixing and packaging machine as defined in claim 1 wherein: the scraping piece (103) is connected with a support piece (106) through an adjusting rod (104) provided with a first spring, and the support piece (106) is fixedly connected to the side wall of the discharging door (107).

7. the adjustable dispensing apparatus for a mixing and packaging machine as defined in claim 1 wherein: and a baffle (113) is arranged on the side wall of one end of the notch below the scraping piece (103).

8. The adjustable dispensing apparatus for a mixing and packaging machine as defined in claim 1 wherein: an opening and closing piece (2) for opening and closing the blanking door (118) is arranged below the bottom of the rotary disc (109).

9. The adjustable dispensing apparatus for a mixing and packaging machine as defined in claim 8 wherein: the opening and closing piece (2) comprises a support (20), a pushing piece (21) and a closing piece (22), wherein the pushing piece (21) and the closing piece (22) are respectively arranged on two sides of the top of the support (20).

10. A mixing and packaging machine equipped with an adjustable dispensing device for mixing and packaging machines according to any of claims 1 to 8, characterized in that: the adjustable distribution device can limit the number of the materials to be mixed on the mixing and packaging machine according to the variety and the number of the materials to be mixed.