Packaging machine

Abstract

The utility model provides a packaging machine which comprises a machine frame, a paper conveying assembly, a forming device, a discharging assembly, a bag pulling assembly, a heat sealing assembly and a bag cutting assembly, and the discharging assembly, the heat sealing assembly and the bag cutting assembly are arranged on the machine frame in sequence in the vertical direction. The heat sealing assembly comprises a transverse sealing assembly and a longitudinal sealing assembly, the transverse sealing assembly is arranged below the longitudinal sealing assembly, the longitudinal sealing assembly is used for longitudinally sealing the side edge of the packaging paper, the transverse sealing assembly comprises a heat sealing part, the heat sealing part comprises a transverse sealing mold and a cooling plate, the transverse sealing mold is used for transversely sealing the top and the bottom of the packaging paper, and the cooling plate is used for cooling the transverse sealing mold. The cooling plate is connected with the transverse sealing mold, arranged on the transverse sealing mold and used for cooling materials close to the transverse sealing mold. The utility model aims at solving the problem that the quality of materials intolerant to temperature is affected due to the fact that the temperature is too high in the packaging process of an existing packaging machine.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of packing equipment, specifically, relate to a packing machine. BACKGROUND

[0002] The packing machine is widely applied to food, medicine, chemical product, daily necessity, medical consumable, biological detection product etc. industry, and the application of the packing machine makes the packing work more convenient and fast, liberates a large number of manpower, reduces enterprise cost, greatly improves production efficiency, creates the benefit for enterprise. The packaged material can be the product with fixed shape, also can be powder, granule and liquid etc. without fixed shape.

[0003] The existing packing machine usually adopts hot melt packing material to carry out heat sealing to seal the packing material, so that the temperature of the sealing periphery is relatively high. When the existing packing machine is used to pack some temperature intolerant materials (for example, probiotics), the effective components in the materials may be killed due to the high temperature in the packing process, so that the materials lose their effectiveness, which greatly affects the quality of the materials. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problem that the temperature is relatively high in the packing process of the existing packing machine, which affects the quality of temperature intolerant materials.

[0005] In order to solve the above problems, the utility model provides a packing machine, which comprises:

[0006] A rack is provided with a paper feeding assembly, a former, a feeding assembly, a bag pulling assembly, a heat sealing assembly and a bag cutting assembly, and the feeding assembly, the heat sealing assembly and the bag cutting assembly are sequentially arranged along the vertical direction.

[0007] The heat sealing assembly comprises a transverse sealing assembly and a longitudinal sealing assembly, the transverse sealing assembly is arranged below the longitudinal sealing assembly, the longitudinal sealing assembly is used for longitudinally sealing the side edges of the packing paper, the transverse sealing assembly comprises a heat sealing piece, the heat sealing piece comprises a transverse sealing die and a cooling plate, the transverse sealing die is used for transversely sealing the top and bottom of the packing paper, the cooling plate is connected with the transverse sealing die, the cooling plate is arranged on the transverse sealing die, and the cooling plate is used for cooling the material close to the transverse sealing die.

[0008] Further, the transverse sealing assembly comprises two groups of heat sealing pieces, the two groups of heat sealing pieces are oppositely arranged, the two groups of heat sealing pieces can move relative to each other along the first horizontal direction or move away from each other, each group of heat sealing pieces comprises a fixed plate, and the transverse sealing die and the cooling plate are connected through the fixed plate.

[0009] Further, the cooling plate is provided with an inclined surface, the inclined surface is arranged obliquely towards the folding formed packaging paper, and the inclined surfaces on the two oppositely arranged cooling plates can be connected to form a V-shaped groove.

[0010] Further, at least one cooling hole is formed in the cooling plate, and the cooling hole penetrates the cooling plate.

[0011] Further, two first connecting heads are arranged on the cooling plate, the two first connecting heads are arranged at two ends of the cooling plate along a second horizontal direction, a first pipeline is arranged in the cooling plate, and the two first connecting heads are in communication with the first pipeline.

[0012] Further, the heat sealing element further comprises a fixing element, an adjusting hole is formed in the cooling plate, the fixing element passes through the adjusting hole and is connected with the fixing plate, and the adjusting hole is a waist-shaped hole or an elliptical hole.

[0013] Further, a heat insulation pad is arranged between the cooling plate and the transverse sealing mold.

[0014] Further, the feeding assembly comprises a hopper and a feeding screw, the feeding screw is arranged at the lower end of the hopper, a condenser pipe is arranged outside the feeding screw, and the condenser pipe is used for cooling the material conveyed into the packaging bag by the feeding screw.

[0015] Further, at least one second connecting head and at least one third connecting head are arranged on the condenser pipe, a second pipeline is arranged in the condenser pipe, and the second connecting head and the third connecting head are in communication with the second pipeline.

[0016] Further, the feeding assembly further comprises a feeding adjusting support, the hopper is connected with the feeding adjusting support, the feeding adjusting support is connected with the rack, and the feeding adjusting support can adjust the discharging position of the feeding screw.

[0017] The packaging machine has the advantages that the cooling plate is arranged in the transverse sealing assembly, the temperature near the sealing port can be reduced, the structure of effective components in the material is not damaged when the material which cannot tolerate high temperature contacts the sealing port, and the quality of the packaged material is affected; in addition, the cooling plate is arranged at the upper end of the transverse sealing mold, the cooling plate can also isolate the lower sealing port (i.e. the bottom of the packaging bag) and the material, the material does not directly contact the lower sealing port, the structure of effective components in the material is further protected, and therefore the quality of the packaged material can be further improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The packaging machine is a three-dimensional structure schematic view provided in the embodiment of the utility model.

[0019] Figure 2 This is a side structural diagram of a packaging machine provided in an embodiment of the present utility model;

[0020] Figure 3 for Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the transverse sealing assembly provided in an embodiment of the present utility model;

[0022] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of part B in the middle. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is described clearly and in detail below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In addition, in the description of the present invention, "at least one" means one or more, and "a plurality" means two or more, unless otherwise clearly and specifically defined.

[0024] In this specification, the term "as an alternative embodiment" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one alternative embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same implementation or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0025] Combine Figure 1 and Figure 4As shown, the embodiment provides a packaging machine, which comprises a rack 10 and a paper feeding assembly 20, a former (not shown in the figure), a material feeding assembly 30, a bag pulling assembly 40, a heat sealing assembly 40 and a bag cutting assembly 70 arranged on the rack 10, and the material feeding assembly 30, the heat sealing assembly and the bag cutting assembly 70 are sequentially arranged along the vertical direction (i.e. along the feeding direction of the packaging paper).

[0026] The paper feeding assembly 20 is used to convey the packaging paper to the former, the former is used to fold and form the packaging paper, the bag pulling assembly 40 is used to pull the folded and formed packaging paper, the heat sealing assembly is used to heat seal the folded and formed packaging paper to form a packaging bag, the material feeding assembly 30 is used to convey the material into the packaging bag, and the bag cutting assembly 70 is used to cut and recycle the heat sealed packaging bag.

[0027] The heat sealing assembly comprises a transverse sealing assembly 50 and a longitudinal sealing assembly 60, and the longitudinal sealing assembly 60, the bag pulling assembly 40 and the transverse sealing assembly 50 are sequentially arranged along the vertical direction, the transverse sealing assembly 50 is arranged below the longitudinal sealing assembly 60, the longitudinal sealing assembly 60 is used to longitudinally seal the side edges of the folded and formed packaging paper, and the transverse sealing assembly 50 is used to transversely seal the top and bottom of the folded and formed packaging paper, wherein the transverse sealing assembly 50 comprises a heat sealing piece, the heat sealing piece comprises a transverse sealing die 52 and a cooling plate 53, the transverse sealing die 52 is used to transversely seal the top and bottom of the folded and formed packaging paper, the cooling plate 53 is connected with the transverse sealing die 52, and the cooling plate 53 is arranged on the transverse sealing die 52, and the cooling plate 53 is used to cool the material close to the transverse sealing die 52.

[0028] The packaging machine provided in the embodiment can reduce the temperature near the sealing port, so as to avoid that when the material which is not resistant to temperature contacts the sealing port, the structure of the effective component in the material is destroyed, and the quality of the packaged material is affected. In addition, in the embodiment, the cooling plate is arranged at the upper end of the transverse sealing die, so that the cooling plate can also isolate the lower sealing port (i.e. the bottom of the packaging bag) and the material, and avoid that the material directly contacts the lower sealing port, which is beneficial to further protect the structure of the effective component in the material, so as to further improve the quality of the packaged material.

[0029] On the basis of the above embodiment, as an optional implementation manner, in combination with Figure 4 As shown, the heat sealing piece further comprises a fixing plate 51, and the transverse sealing die 52 and the cooling plate 53 are both mounted on the fixing plate 51, and the connection between the transverse sealing die 52 and the cooling plate 53 is realized through the fixing plate 51.

[0030] On the basis of the above embodiment, as an optional implementation manner, the transverse sealing assembly 50 comprises two groups of heat sealing pieces, the two groups of heat sealing pieces are identical in structure, and the two groups of heat sealing pieces are oppositely arranged, and the two groups of heat sealing pieces can be moved along the first horizontal direction (i.e. Figure 4The two groups of heat sealing members are relatively moved or moved away from each other along the x-axis direction, so that the two groups of heat sealing members have a space for the packaging bag filled with materials to pass through. When the two groups of heat sealing members are relatively moved, the two transverse sealing molds 52 are close to each other to transversely seal the top and bottom of the folded and formed packaging paper. After the transverse sealing is completed, the two groups of heat sealing members are moved away from each other, so that the two transverse sealing molds 52 are away from each other.

[0031] On the basis of the above-mentioned embodiments, as an optional implementation, the transverse sealing assembly 50 further comprises a driving member 54 connected with one group of heat sealing members, and the driving member 54 is used to drive the heat sealing members to move relative to the other group of heat sealing members along the first horizontal direction, so that the two groups of heat sealing members are relatively moved or moved away from each other along the first horizontal direction. Specifically, one group of heat sealing members is named as a first heat sealing member, and the other group of heat sealing members is named as a second heat sealing member. The second heat sealing member is arranged close to the driving member 54 and is connected with the driving member 54. The first heat sealing member is arranged away from the driving member 54. The driving member 54 comprises eccentric cams, bearings, adjusting plates, a linear bearing and a connecting rod. The first heat sealing member and the second heat sealing member are arranged on the connecting rod. The linear bearing is arranged on the connecting rod. The linear bearing and the second heat sealing member can move along the connecting rod. The two eccentric cams are coaxially arranged. The two bearings are arranged on the two adjusting plates respectively. One of the adjusting plates is connected with the second heat sealing member and the linear bearing. The eccentric cams are always in abutment with the bearings. The two eccentric cams can rotate around their own axes. When the eccentric cams rotate, the bearings in contact with the eccentric cams move along the first horizontal direction, so as to drive the two adjusting plates to relatively move or move away from each other along the first horizontal direction, thereby driving the second heat sealing member to move relative to the first heat sealing member along the first horizontal direction. Of course, the person skilled in the art can also select other structures of the driving member 54 to drive the relative movement or the movement away from each other between the two groups of heat sealing members, for example, the driving member 54 can also be a pneumatic cylinder or a motor, and is connected through a transmission structure such as a belt or a lead screw.

[0032] On the basis of the above-mentioned embodiments, as an optional implementation, the first heat sealing member is connected with the connecting rod through a connecting plate 55. The connecting plate 55 is connected with the connecting rod. The fixed plate 51 of the first heat sealing member is connected with the connecting plate 55. An elastic member 56 is arranged between the fixed plate 51 of the first heat sealing member and the connecting plate 55. One end of the elastic member 56 is in abutment with the fixed plate 51 of the first heat sealing member. The other end of the elastic member 56 is in abutment with the connecting plate 55. Thus, by arranging the elastic member 56 between the fixed plate 51 of the first heat sealing member and the connecting plate 55, a buffering effect can be achieved, so as to avoid excessive sealing pressure when the two heat sealing members transversely seal the top and bottom of the folded and formed packaging paper. As an optional implementation, the elastic member 56 can be a spring.

[0033] On the basis of the above-mentioned embodiments, as an optional implementation, in combination with Figure 5As shown, the cooling plate 53 is provided with a slope 531, which is arranged to be inclined to the folding-formed packaging paper, and the slopes 531 on the two oppositely arranged cooling plates 53 can be connected to form a V-shaped groove. In this way, by arranging the slope 531 on the cooling plate 53, on the one hand, it is beneficial to increase the contact area between the cooling plate 53 and the material in the packaging bag, and improve the heat dissipation effect, on the other hand, when the two oppositely arranged cooling plates 53 are close to each other, the slopes 531 on the two cooling plates 53 can be connected to form a V-shaped groove, which is beneficial to the discharging of the material and avoids the occupation of the space in the packaging bag by the cooling plate 53, thereby affecting the filling amount of the material.

[0034] On the basis of the above-mentioned embodiments, as an optional implementation manner, at least one cooling hole 532 is arranged on the cooling plate 53, and the cooling hole 532 penetrates the cooling plate 53. In this way, by arranging the cooling hole 532, it is beneficial to dissipate heat of the cooling plate 53, so as to better cool the material in the packaging bag. As an optional implementation manner, a plurality of cooling holes 532 are arranged along the second horizontal direction (z-axis direction in the coordinate system shown in the figure) at intervals, and the shape of the cooling hole 532 can be a waist-shaped, oval or long strip-shaped. Figure 4

[0035] On the basis of the above-mentioned embodiments, as an optional implementation manner, two first connecting heads 533 are arranged on the cooling plate 53, and the two first connecting heads 533 are arranged at the two ends of the cooling plate 53 along the second horizontal direction, that is, one first connecting head 533 is arranged at each end of the cooling plate 53 along the second horizontal direction, and the inside of the cooling plate 53 is provided with a first pipeline, and the two first connecting heads 533 are in communication with the first pipeline, and the two first connecting heads 533 are used to be in communication with an external cooling device, so as to cool the cooling plate 53 by the external cooling device, and cool the material in the packaging bag by heat transfer.

[0036] On the basis of the above-mentioned embodiments, as an optional implementation manner, a heat insulation pad (not shown in the figure) is arranged between the transverse sealing mold 52 and the cooling plate 53. In this way, by arranging the heat insulation pad between the transverse sealing mold 52 and the cooling plate 53, the cooling plate 53 can avoid affecting the sealing effect of the transverse sealing mold 52, and the heat dissipated from the transverse sealing mold 52 can avoid affecting the cooling effect of the cooling plate 53 on the material in the packaging bag.

[0037] ​On the basis of the above-mentioned embodiments, as an optional implementation manner, the heat sealing piece further comprises a fixing piece (not shown in the figure), the cooling plate 53 is provided with an adjusting hole 534, and the fixing piece is connected with the fixing plate 51 through the adjusting hole 534 to mount the cooling plate 53 on the fixing plate 51. Thus, by providing the adjusting hole 534 on the cooling plate 53, the cooling plate 53 can be moved relative to the horizontal sealing mold 52 along the first horizontal direction, the cooling plate 53 can be covered on the upper end of the horizontal sealing mold 52, the spacing between the two cooling plates 53 arranged oppositely can be adjusted, and the setting of the adjusting hole 534 is also conducive to improving the heat dissipation effect of the cooling plate 53. As an optional implementation manner, a plurality of adjusting holes 534 are arranged at intervals along the second horizontal direction, the number of fixing pieces is the same as that of the adjusting holes 534, and the fixing pieces are arranged one by one corresponding to the adjusting holes 534, and the shape of the adjusting hole 534 can be a waist-shaped hole or an oval hole.

[0038] On the basis of the above-mentioned embodiments, as an optional implementation manner, in combination with Figures 1 to 3 As shown in the figure, the blanking assembly 30 comprises a hopper 31 and a blanking screw 32, the blanking screw 32 is arranged at the lower end of the hopper 31, the material in the hopper 31 is metered and discharged through the blanking screw 32, and the outside of the blanking screw 32 is sleeved with a condenser pipe 80, which is used for cooling the material conveyed into the packaging bag by the blanking screw 32. Thus, by sleeving the condenser pipe 80 on the outside of the blanking screw 32, it can avoid that the blanking temperature is too high, the structure of the effective components in the material is destroyed, and the quality of the packaged material is affected, and by arranging the condenser pipe 80 at the blanking port, it is conducive to further improving the quality of the packaged material.

[0039] On the basis of the above-mentioned embodiments, as an optional implementation manner, the condenser pipe 80 is provided with a second joint 81 and a third joint 82, the inside of the condenser pipe 80 is provided with a second pipeline, the second joint 81 and the third joint 82 are both communicated with the second pipeline, and the second joint 81 and the third joint 82 are both used for being communicated with an external cooling device, so that the condenser pipe 80 can be cooled by the external cooling device, and the material passing through the blanking port can be cooled by heat transfer. As an optional implementation manner, the second joint 81 is arranged on the side surface of the condenser pipe 80, at least one second joint 81 is arranged, and the third joint 82 is arranged on the upper end surface of the condenser pipe 80. Exemplarily, Figure 3 Two groups of second joints 81 and two groups of third joints 82 are arranged in the figure, each group of second joints 81 comprises two second joints 81, each group of third joints 82 comprises one third joint 82, the two second joints 81 are arranged at intervals along the blanking direction, and the two second joints 81 are both communicated with the third joint 82. By this arrangement, it is conducive to further improving the cooling effect of the condenser pipe 80 on the material.

[0040] On the basis of the above-mentioned embodiment, as an optional implementation, the discharging assembly 30 further comprises a discharging adjusting support 33, the hopper 31 is connected with the discharging adjusting support 33, the discharging adjusting support 33 is connected with the rack 10, and the discharging adjusting support 33 can adjust the position of the hopper 31, so as to adjust the discharging position of the discharging screw 32. Specifically, the discharging adjusting support 33 can adjust the hopper 31 in the vertical direction, and can also adjust the angle of the hopper 31, so as to adjust the height and angle of the discharging screw 32 connected with the hopper 31. Therefore, by arranging the discharging adjusting support 33, the discharging position of the discharging screw 32 can be adjusted, and the dust raising phenomenon in the discharging process of the material can be reduced.

[0041] On the basis of the above-mentioned embodiment, as an optional implementation, the packaging machine further comprises a controller 90, the paper feeding assembly 20, the discharging assembly 30 and the controller 90 are arranged on the upper part of the rack 10, and the controller 90 is located on one side of the paper feeding assembly 20, the bag pulling assembly 40, the transverse sealing assembly 50, the longitudinal sealing assembly 60 and the bag cutting assembly 70 are arranged on the front end of the rack 10, and the controller 90 is used to control the actions of the paper feeding assembly 20, the discharging assembly 30, the former, the bag pulling assembly 40, the transverse sealing assembly 50, the longitudinal sealing assembly 60 and the bag cutting assembly 70.

[0042] On the basis of the above-mentioned embodiment, as an optional implementation, the rack 10 is further provided with a protective door 11, the protective door 11 is arranged on one side of the longitudinal sealing assembly 60, and the protective door 11 is used to protect the bag pulling assembly 40 and the longitudinal sealing assembly 60.

[0043] The specific structures of the paper feeding assembly 20, the former, the bag pulling assembly 40, the longitudinal sealing assembly 60 and the bag cutting assembly 70 are not limited in the embodiment, and those skilled in the art can select corresponding components commonly used in the art according to actual conditions.

[0044] The working principle of the packaging machine provided in the embodiment will be described below: Figures 1 to 5

[0045] ​The paper conveying assembly 20 conveys the packaging paper into the former, the former folds the packaging paper into a shape, the bag pulling assembly 40 pulls the folded packaging paper, the longitudinal sealing assembly 60 seals the side edges of the folded packaging paper in the longitudinal direction, the transverse sealing assembly 50 seals the bottom of the folded packaging paper in the transverse direction, meanwhile, the material conveying assembly 30 conveys the material into the packaging bag, when the material conveying assembly 30 conveys the material, the condenser pipe 80 sleeved outside the material conveying screw 32 cools the material conveyed into the packaging bag, and the cooling plate 53 cools the material conveyed into the bottom of the packaging bag, until the material conveying is completed, the transverse sealing assembly 50 seals the top of the packaging bag in the transverse direction, the bag pulling assembly 40 pulls the packaging bag, and the packaging bag is conveyed to the bag cutting assembly 70, the bag cutting assembly 70 cuts, and the packaging of the material is completed, the above operation is repeated, and the packaging of the next material is carried out.

[0046] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the present disclosure.

Claims

1. A packaging machine, characterized in that, The utility model relates to a paper bag making machine, which comprises a rack, a paper feeding assembly, a former, a material discharging assembly, a bag pulling assembly, a heat sealing assembly and a bag cutting assembly arranged on the rack in sequence along a vertical direction. The heat sealing assembly comprises a transverse sealing assembly and a longitudinal sealing assembly, the transverse sealing assembly is arranged below the longitudinal sealing assembly, the longitudinal sealing assembly is used for longitudinally sealing the side edges of the packaging paper, the transverse sealing assembly comprises a heat sealing piece, the heat sealing piece comprises a transverse sealing die and a cooling plate, the transverse sealing die is used for transversely sealing the top and bottom of the packaging paper, the cooling plate is connected with the transverse sealing die and arranged on the transverse sealing die, and the cooling plate is used for cooling the material close to the transverse sealing die. The transverse sealing assembly comprises two groups of heat sealing pieces arranged oppositely and movable relative to each other along a first horizontal direction or away from each other, each group of heat sealing pieces comprises a fixed plate, and the transverse sealing die and the cooling plate are connected through the fixed plate.

2. The packaging machine of claim 1, characterized in that, The cooling plate is provided with an inclined surface, the inclined surface is arranged obliquely towards the packaging paper folded and formed, and the inclined surfaces on the two oppositely arranged cooling plates can be connected to form a V-shaped groove.

3. The packaging machine of claim 2, wherein, The cooling plate is provided with at least one cooling hole penetrating through the cooling plate.

4. The packaging machine of claim 1, wherein, The cooling plate is provided with two first connecting heads arranged at the two ends of the cooling plate along a second horizontal direction, the inside of the cooling plate is provided with a first pipeline, and the two first connecting heads are connected with the first pipeline.

5. The packaging machine of claim 2, wherein, The heat sealing piece further comprises a fixing piece, the cooling plate is provided with an adjusting hole, the fixing piece passes through the adjusting hole and is connected with the fixed plate, and the adjusting hole is a waist-shaped hole or an elliptical hole.

6. The packaging machine of claim 2, wherein, A heat insulation pad is arranged between the cooling plate and the transverse sealing die.

7. The packaging machine of claim 1, wherein, The material discharging assembly comprises a material bin and a material discharging screw, the material discharging screw is arranged at the lower end of the material bin, the outside of the material discharging screw is provided with a condenser pipe, and the condenser pipe is used for cooling the material delivered into the packaging bag by the material discharging screw.

8. The packaging machine of claim 1, wherein, The condenser pipe is provided with at least one second connecting head and at least one third connecting head, the inside of the condenser pipe is provided with a second pipeline, and the second connecting head and the third connecting head are connected with the second pipeline.

9. The packaging machine of claim 8, wherein, The material discharging assembly further comprises a material discharging adjusting support, the material bin is connected with the material discharging adjusting support, the material discharging adjusting support is connected with the rack, and the material discharging adjusting support can adjust the discharging position of the material discharging screw.

10. The packaging machine of claim 8, wherein, ​

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