Filling and packaging machine

Abstract

The application discloses a filling and packaging machine and relates to the technical field of packaging machines. The filling and packaging machine comprises a packaging material supply component, a folding component, a longitudinal sealing component, a vacuum bag opening component, a filling component, a filler supply component and a top sealing component. The longitudinal sealing component is arranged behind the folding component, the folded packaging material is longitudinally sealed to form a continuous bag body with continuous bag portions, then the bag portions in the continuous bag body are opened one by one by the vacuum bag opening component, and after the opening, the filler rod of the filling component is inserted into the bag portion with the opened bag opening to fill. The longitudinal sealing component and the sealing cam in the circumferential movement of the existing filling and packaging machine can be omitted, and the rotating cam for rotating the filler rod around the lifting shaft can also be omitted, so that the structure is simplified and the equipment cost is low.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of packaging machines, and more particularly, to a filling packaging machine that continuously forms a plurality of bag portions in a band-shaped packaging material and fills each bag portion with a filling material. BACKGROUND

[0002] A rotary filling packaging machine that packages a filling material such as a powder or a granule is known. In this filling packaging machine, as shown in FIG. 1, a band-shaped packaging material 103 is continuously supplied in a state of being folded in a manner that a fold 104 faces downward, and is transported along a circumferential direction while being held by a plurality of longitudinal sealing members 105 arranged at a regular interval along the circumferential direction. Each longitudinal sealing member 105 has a pair of sealing rods 106 that hold the packaging material 103, and heat-seals a portion of the packaging material held between the pair of sealing rods 106. Thus, a longitudinal seal 107 extending along an up-down direction is formed in the packaging material 103. Figure 1 As shown in FIG. 1, a circular arc transport path 101 that extends horizontally in a substantially circular arc shape in plan view, and an extension transport path 102 that is connected to a terminal end of the circular arc transport path 101 are provided as a transport path 100 of the packaging material 103.

[0003] As shown in FIG. 2, the circular arc transport path 101 has a plurality of longitudinal sealing members 105 arranged at a regular interval along a circumferential direction. Each longitudinal sealing member 105 has a pair of sealing rods 106 that hold the packaging material 103, and heat-seals a portion of the packaging material held between the pair of sealing rods 106. Thus, a longitudinal seal 107 extending along an up-down direction is formed in the packaging material 103. Figure 2 As shown in FIG. 2, the circular arc transport path 101 has a plurality of longitudinal sealing members 105 arranged at a regular interval along a circumferential direction. Each longitudinal sealing member 105 has a pair of sealing rods 106 that hold the packaging material 103, and heat-seals a portion of the packaging material held between the pair of sealing rods 106. Thus, a longitudinal seal 107 extending along an up-down direction is formed in the packaging material 103.

[0004] As shown in FIG. 3, a plurality of longitudinal seals 107 are formed in the packaging material 103 at a given interval along a transport direction. Thus, a bag portion 108 that is open upward is formed between adjacent longitudinal seals 107 in the packaging material 103. In the circular arc transport path 101, a filling material supplied from above is filled in each bag portion 108 by a filler rod 109. Figure 3 As shown in FIG. 4, the filler rod 109 performs a vertical movement along with a circumferential movement of the bag portion 108 by a lift cam provided in a housing of the filling packaging machine, and performs a rotational movement around a lift shaft 110 by a rotational cam provided in the housing. Thus, the filler rod 109 is moved in a manner that a tip end of the filler rod 109 is brought into contact with a bottom surface of the bag portion 108. Figure 1 Figure 2 As shown in FIG. 4, the filler rod 109 performs a vertical movement along with a circumferential movement of the bag portion 108 by a lift cam provided in a housing of the filling packaging machine, and performs a rotational movement around a lift shaft 110 by a rotational cam provided in the housing. Thus, the filler rod 109 is moved in a manner that a tip end of the filler rod 109 is brought into contact with a bottom surface of the bag portion 108. Figure 2 ​The structure shown can be seen that the filling rod 110 is inserted in time after the continuous conveying of the packaging material 103 is folded, when the sealing rod 106 seals the continuous conveying of the packaging material longitudinally, the filling rod 109 has been located in the bag part. The filling rod 109 needs to move up and down with the lifting shaft 110 to facilitate insertion into the folded packaging material 103; and the filling rod 109 needs to rotate with the lifting shaft 110 to smoothly pull out the filling rod 109 from the bag part 108, and also to pull apart the spacing between the filling rods 109, so that the front filling rod 109 is inserted into the folded packaging material, realizing the continuous operation of the filling rod 109.

[0005] The top sealing part has a heating part that heats the upper edge of the packaging material, and a pressing part that presses the upper edge heated by the heating part to perform heat sealing. The pressing part has a pair of sealing rollers that sandwich the packaging material therebetween. On the elongated conveying path, the packaging material sequentially passes through the heating part and the pressing part, so that the upper edge is sealed, thereby the bag part is sealed to form a product as shown in the drawing. Figure 3

[0006] As described above, in the circular arc conveying path, the packaging material is sandwiched between the sealing rods of the longitudinal sealing part, and in the elongated conveying path, the packaging material is sandwiched between the sealing rollers of the pressing part of the top sealing part. In addition, in the conveying area from the end point of the circular arc conveying path to the pressing part of the elongated conveying path, the packaging material is supported from the lower side by the guide member.

[0007] Prior art documents: Patent document 1 - Japanese Patent Application Publication No. 2006-021795; Patent document 2 - CN110356607A "Filling packaging machine".

[0008] Problems in the prior art:

[0009] 1. In the above-mentioned rotary filling packaging machine, when the belt-shaped packaging material is continuously conveyed, it needs to be sandwiched by multiple pairs of sealing rods corresponding to multiple longitudinal sealing parts in the circular arc conveying path to realize longitudinal sealing of the belt-shaped packaging material. When the multiple pairs of sealing rods rotate circumferentially, the packaging material needs to be clamped at the starting point of the circular arc conveying path and released at the end point of the circular arc conveying path. The clamping and releasing of the sealing rods need to be realized by corresponding cam mechanisms, which is a relatively complex structure and has a high equipment cost.

[0010] 2. When the filling rod moves in a circular arc with the bag part, the filling rod needs to move up and down with the lifting shaft before entering the bag part, and also needs to rotate around the lifting shaft. At least two cams, lifting cam and rotating cam, are needed to realize the above-mentioned two actions, which is a relatively complex structure and has a high equipment cost.

[0011] ​3. In the circular arc conveying path, the sealing rod keeps clamping the packaging material from the start point of the circular arc conveying path to the end point of the circular arc conveying path (defined by the cam track of the sealing rod, in which the sealing rod cannot be opened), if the continuous operation of the rotary filling and packaging machine is stopped, the longitudinal sealing part from the start point of the circular arc conveying path to the end point of the circular arc conveying path keeps clamping the packaging material, and the residual heat of the sealing rod can cause the packaging material to deform or melt. SUMMARY

[0012] In order to overcome the defects and deficiencies existing in the prior art, the present application provides a filling and packaging machine, and the purpose of the present application is to solve the problem of high equipment cost of the filling and packaging machine for folding the continuously conveyed packaging material in the prior art, and to solve the problem of packaging material deformation or melting caused by preheating of the sealing rod after the equipment is stopped.

[0013] The means for solving the above technical problems of the present application is:

[0014] The strip-shaped packaging material is continuously supplied in a folded state with the fold line facing downward, a longitudinal sealing part is provided on the bag conveying path before the packaging material enters the start point of the circular arc conveying path after the strip-shaped packaging material forms the folded state, so that the folded packaging material is bonded or sealed to form a longitudinal sealing part at a given interval in the length direction of the packaging material; the bag part is formed between adjacent longitudinal sealing parts and is continuously formed in the length direction of the packaging material; the continuous bag part enters the circular arc conveying path from the start point of the circular arc conveying path, and the bag opening of the bag part is opened by the negative pressure vacuum part when the bag part enters the start point of the circular arc conveying path, the filler rod is inserted into the bag part with the bag opening opened by the negative pressure vacuum part, and the filler rod fills the filling material supplied from above into each bag part on the circular arc conveying path.

[0015] In order to solve the problems existing in the prior art, the present application is realized by the following technical scheme.

[0016] The present application provides a filling and packaging machine, which comprises:

[0017] A packaging material supply part for continuously supplying strip-shaped packaging material; the path of the continuous supply of the strip-shaped packaging material includes a circular arc conveying path extending horizontally in a substantially circular arc shape, a packaging material supply path connected to the start point of the circular arc conveying path, and an extension conveying path connected to the end point of the circular arc conveying path;

[0018] A folding part provided on the packaging material supply path for folding the strip-shaped packaging material with the fold line located downward during the continuous supply of the strip-shaped packaging material;

[0019] The longitudinal sealing component is arranged on the packaging material supply path and behind the folding component, and is used for longitudinally sealing the packaging material at a given interval along the conveying direction of the folded packaging material; the adjacent longitudinal seals form upwardly open bag portions, and the bag portions are continuously formed, and the folded packaging material forms a continuous bag body after passing through the longitudinal sealing component;

[0020] The vacuum bag opening component comprises a bag suction rotating disc mechanism and a following suction mechanism, the circular arc conveying path is a part of a circular arc segment of the bag suction rotating disc mechanism; the continuous bag body formed by the longitudinal sealing component is held by the bag suction rotating disc mechanism and is conveyed in the circumferential direction along with the rotation of the bag suction rotating disc mechanism; the following suction mechanism is arranged opposite to the bag suction rotating disc mechanism and outside the circular arc conveying path; the following suction mechanism rotates opposite to the bag suction rotating disc mechanism and has the same linear speed; the continuously supplied bag body passes between the following suction mechanism and the bag suction rotating disc mechanism; the following suction mechanism suctions the packaging material outside the bag portion, and the bag suction rotating disc mechanism suctions the packaging material inside the bag portion; along with the relative rotation of the following suction mechanism and the bag suction rotating disc mechanism, the bag mouths of the bag portions passing between the two are opened one by one;

[0021] The filling component comprises a plurality of filling rods, a plurality of lifting shafts and a lifting cam; the filling rods and the lifting shafts are in one-to-one correspondence; the bottom of the lifting shaft is connected to the lifting cam; the lifting shaft and the filling rod move in the circumferential direction synchronously with the bag suction rotating disc mechanism; along with the circumferential movement of the lifting shaft, the lifting shaft is limited by the trajectory of the lifting cam; the lifting shaft drives the filling rod to be inserted into the bag portion with an opened bag mouth in the circular arc conveying path, and the filling rod is pulled out of the bag portion before the bag portion enters the extension conveying path;

[0022] The filling supply component is used for supplying the filling rod with filling materials, and filling the filling materials into the bag portion with an opened bag mouth in the circular arc conveying path through the filling rod;

[0023] The top sealing component is arranged on the extension conveying path, and is used for top sealing the bag mouth of the continuous bag body with filling materials output from the circular arc conveying path.

[0024] The circular arc conveying path is a horizontal circular arc conveying path in a 1 / 2 circular arc in a top view.

[0025] The bag suction rotating disc mechanism comprises a bag suction rotating disc and a bag suction driving assembly driving the rotation of the bag suction rotating disc; the bag suction rotating disc comprises a rotating disc body, a plurality of bag suction areas are uniformly arranged on the circumferential surface of the rotating disc body, and suction holes for suctioning the packaging material on one side of the bag body are arranged in the bag suction areas.

[0026] Shaft holes for assembling the lifting shafts are arranged on the rotating disc body; the lifting shafts are uniformly distributed along the shaft axis of the rotating disc body and move in the circumferential direction along with the rotation of the rotating disc body.

[0027] The follow-up adsorption mechanism comprises an adsorption column and an opening bag driving assembly for driving the adsorption column to rotate; a plurality of opening bag areas matched with the bag suction areas on the bag suction disc are arranged on the circumferential surface of the adsorption column, and a plurality of opening bag negative pressure holes are arranged in the opening bag areas.

[0028] The bag suction driving assembly is a hollow rotating platform, and the lower end of the bag suction disc is assembled on the rotating part of the hollow rotating platform and rotates with the rotating part of the hollow rotating platform.

[0029] A gas distribution disc is arranged on the hollow rotating platform, the gas distribution disc is fixedly assembled on the fixed part of the hollow rotating platform, a negative pressure cavity is arranged in the gas distribution disc, and a communication groove in communication with the adsorption holes in the bag suction area is arranged on the surface of the gas distribution disc.

[0030] The gas distribution disc comprises a gas distribution disc base and a gas distribution disc cover, the gas distribution disc base is fixedly assembled on the fixed part of the hollow rotating platform, and the gas distribution disc cover is sealingly assembled on the gas distribution disc base, and the communication groove is arranged on the gas distribution disc cover.

[0031] The gas distribution disc cover is made of a tin-copper alloy material, a plurality of holes are drilled on the top surface of the gas distribution disc cover, graphite is poured into the holes, and the holes are blind holes.

[0032] A plurality of bag suction modules are uniformly arranged on the circumferential surface of the disc body, and the bag suction modules correspondingly form the bag suction areas on the circumferential surface of the disc body.

[0033] The bag suction module comprises a module body, the outer side surface of the module body is an inner concave surface, the adsorption holes are arranged on the inner concave surface, a communication hole in butt joint with the communication groove on the gas distribution disc is arranged on the bottom of the module body, and the adsorption holes are in communication with the communication hole.

[0034] The follow-up adsorption mechanism further comprises an adsorption column mounting seat, the adsorption column and the opening bag driving assembly are both assembled on the adsorption column mounting seat, and the gas distribution disc is arranged between the lower end surface of the adsorption column and the top surface of the adsorption column mounting seat.

[0035] The opening bag driving assembly comprises a servo motor and a speed reducer.

[0036] The longitudinal sealing part comprises a pair of rotatable longitudinal sealing rollers, a plurality of longitudinal sealing cutter seats are uniformly assembled on the circumferential surface of the longitudinal sealing rollers, the folded packaging material passes between the pair of longitudinal sealing rollers, and the longitudinal sealing rollers on both sides separate the folded packaging material by a given interval.

[0037] The longitudinal sealing component includes a translation assembly reciprocating along the conveying direction of the folded packaging material, the translation assembly is located below the folded packaging material, a plurality of longitudinal sealing knife groups are arranged side by side on the translation assembly along the conveying direction of the folded packaging material, each longitudinal sealing knife group includes two opposite longitudinal sealing knife seats, and adjacent longitudinal sealing knife groups are spaced apart by a given interval; the folded packaging material passes between the two opposite longitudinal sealing knife seats, and the plurality of longitudinal sealing knife groups synchronously move to longitudinally seal the folded packaging material at intervals.

[0038] Compared with the prior art, the beneficial technical effects brought by the present application are as follows:

[0039] 1. Compared with the known filling packaging machine, the present application is provided with a longitudinal sealing component on the packaging material supply path from the folded state of the strip-shaped packaging material to the starting point of the circular arc conveying path. The longitudinal sealing component first longitudinally seals the folded packaging material, and then inputs the continuous bag body formed by the longitudinal sealing into the circular arc conveying path. The present application first performs longitudinal sealing, and in the circular arc conveying path, the continuous bag body is held and circumferentially conveyed by the bag suction turntable mechanism using negative pressure, avoiding the circumferential movement of the longitudinal sealing component with the longitudinal sealing on the continuous bag body. The sealing rod and the corresponding cam structure that move circumferentially along the circular arc conveying path can be omitted, and the cost of the sealing rod structure can be reduced. Since the sealing rod and the cam structure are omitted, when the equipment is stopped, the problem of deformation or melting of the packaging material caused by the residual heat of the sealing rod does not exist.

[0040] 2. The present application opens the bag opening of the bag body by using the bag suction turntable mechanism and the follow-up suction mechanism based on the negative pressure principle. The filling rod only needs to be vertically inserted into the bag body with the opened bag opening, and the filling rod only needs to perform the lifting action and does not need to rotate around the lifting shaft. In the prior art, the filling rod is inserted into the circular arc conveying path before the folded packaging material enters the starting point of the circular arc conveying path. The filling rod needs to move to the tangent direction of the circular arc conveying path and maintain a certain movement trajectory in the same direction as the tangent direction, so the filling rod needs to rotate around the lifting shaft to have a movement trajectory with one end tangent to the starting point of the circular arc conveying path. In the present application, the bag opening is opened in the circular arc conveying path, and the filling rod only needs to be inserted into the bag body. The filling rod does not need to have a movement trajectory tangent to the starting point of the circular arc conveying path. From the structure implementation, the rotary cam that makes the filling rod rotate around the lifting shaft can be omitted, the equipment structure can be simplified, and the equipment cost can be effectively controlled and reduced.

[0041] 3、The bag opening device adopts the bag suction rotating disc mechanism and the follow-up suction mechanism to open the bag opening of the bag part, and the structure is simple, the bag opening of the bag part passing between the two can be smoothly opened in sequence, and the bag opening efficiency and the filling efficiency of the bag body are also ensured. The circular arc conveying path is realized by the partial circular arc on the bag suction rotating disc mechanism, and the continuously supplied bag body is maintained on the circumferential surface of the bag suction rotating disc mechanism by the negative pressure suction; the follow-up suction mechanism suctions the packaging material on the other side of the bag part from the other side of the bag part, and after the relative rotation of the follow-up suction mechanism and the bag suction rotating disc mechanism, the bag opening of the bag part can be opened, which is convenient for the insertion of the subsequent filling rod. Compared with the known existing filling method, the same conveying efficiency and filling efficiency can be maintained. The bag opening device adopts the relative rotation mode to perform the negative pressure bag opening operation on the bag body passing between the suction rotating disc mechanism and the follow-up suction mechanism, opens the bag opening of one bag body at a time, ensures the bag opening rate, and has high bag opening efficiency, high precision and high continuity.

[0042] 4、The hollow rotating platform is adopted as the driving mechanism of the suction rotating disc to ensure the stability of the operation of the suction rotating disc. Meanwhile, the assembly space of other parts is also saved, the lifting shaft and the lifting cam for driving the lifting of the filling rod can be assembled in the hollow rotating platform, so that the overall structure is more compact. The lifting shaft of the filling rod is assembled on the rotating disc body, and can perform circumferential motion together with the rotating disc body, and the rotating disc body can be driven by a common power source. The lifting of the lifting shaft is completely controlled by the lifting cam. The equipment has high integration degree and simple structure.

[0043] 5、The gas distribution disc is adopted to provide negative pressure suction force for the bag suction area on the suction rotating disc, so that the stability of the negative pressure suction force is ensured. Compared with the existing negative pressure vacuum disc structure (the negative pressure gas path is arranged in the vacuum disc and communicated with the suction hole), the middle space is saved, and the failure of part of the bag suction area caused by the blockage of the internal gas path of the negative pressure vacuum disc structure is avoided. The communication groove is arranged on the gas distribution disc, and is communicated with the suction hole of the bag suction area only on the circumferential segment of the suction rotating disc at a set angle. When the communication groove is communicated, the suction is performed, and when the communication groove is not communicated, the suction is not performed. The negative pressure is repeatedly switched, and the provided negative pressure is more stable.

[0044] 6、Since the relative rotation occurs between the gas distribution disc and the suction rotating disc, in order to avoid the wear of the gas distribution disc, the gas distribution disc is divided into a gas distribution disc base and a gas distribution disc cover. When wear occurs, only the gas distribution disc cover needs to be replaced, and the overall replacement is not needed, so that the maintenance cost is reduced.

[0045] 7. This invention uses a tin-copper alloy to make the gas distribution plate cover, which is more wear-resistant and extends its service life. Furthermore, graphite is cast into the gas distribution plate cover to reduce friction between the adsorption disc and the cover, thus reducing wear and further improving its service life. The use of a blind-hole structure for graphite casting prevents graphite from falling out of the through holes after wear has occurred.

[0046] 8. The follow-up adsorption mechanism of the present invention uses an adsorption column mounting base to assemble the adsorption column and the bag opening drive assembly, which has a simple assembly structure and is also convenient for assembling the gas distribution plate.

[0047] 9. The present invention adopts a pair of longitudinal sealing rollers to form a longitudinal sealing component, which has high longitudinal sealing efficiency and will not affect the packaging material conveying efficiency of the filler packaging machine, and performs longitudinal sealing at a certain interval on the folded packaging material. Attached Figure Description

[0048] Figure 1 This is a structural schematic diagram of an existing known method for filling materials.

[0049] Figure 2 A schematic diagram of a filling and packaging machine for implementing existing known filling methods;

[0050] Figure 3 This is a schematic diagram of the continuous bag structure;

[0051] Figure 4 The structural principle of the filling and packaging machine of the present invention Figure 1 ;

[0052] Figure 5 The structural principle of the filling and packaging machine of the present invention Figure 2 ;

[0053] Figure 6 This is a schematic diagram of one embodiment of the bag opening structure in the filling and packaging machine of the present invention;

[0054] Figure 7 This is a schematic diagram of another embodiment of the bag opening structure in the filling and packaging machine of the present invention;

[0055] Figure 8 In this invention Figure 6 A top-view structural diagram;

[0056] Figure 9 For the present invention Figure 8 Sectional view along line AA;

[0057] Figure 10 This is a schematic diagram of the turntable body structure of the present invention;

[0058] Figure 11Structure diagram of hollow rotating platform in the application;

[0059] Figure 12 Structure diagram of gas distribution disc in the application;

[0060] Figure 13 Perspective structure diagram of bag suction module in the application;

[0061] Figure 14 Structure diagram of follow-up suction mechanism in the application;

[0062] The reference signs: 100, conveying path of packaging material, 101, circular arc conveying path, 102, extension conveying path, 103, packaging material, 104, crease, 105, longitudinal sealing part, 106, sealing rod, 107, longitudinal seal, 108, bag part, 109, filling rod, 110, lifting shaft, 111, folding part, 112, filling supply part, 113, bag opening, 114, bag body, 115, top sealing part;

[0063] 1, bag suction rotating disc mechanism, 2, follow-up suction mechanism, 3, bag suction rotating disc, 4, suction column, 5, bag opening driving assembly, 6, rotating disc body, 7, bag suction area, 8, suction hole, 9, bag opening area, 10, bag opening negative pressure hole, 11, hollow rotating platform, 12, rotating part, 13, gas distribution disc, 14, fixing part, 15, negative pressure cavity, 16, communication groove, 17, gas distribution disc base, 18, gas distribution disc cover, 19, bag suction module, 20, module body, 21, inner concave surface, 22, communication hole, 23, suction column mounting seat, 24, negative pressure gas path, 25, shaft hole, 26, longitudinal sealing roller, 27, longitudinal sealing cutter seat, 28, translation assembly. DETAILED DESCRIPTION

[0064] The technical solutions of the present application will be further described in detail below in combination with the drawings and specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0065] Embodiment 1

[0066] As a preferred embodiment of the present application, referring to the drawings in the description, Figures 1-5 The present embodiment discloses a filling packaging machine, which comprises:

[0067] As Figure 1 , Figure 2 , Figure 4 and Figure 5As shown in FIG. 1, a packaging material supply component (not shown in the figure) is used to continuously supply the strip-shaped packaging material 103; the conveying path 100 of the strip-shaped packaging material includes a horizontal circular arc conveying path 101 in the form of a substantially circular arc in plan view, a packaging material supply path connected to the starting point of the circular arc conveying path 101, and an extension conveying path 102 connected to the terminal point of the circular arc conveying path 101. In the present embodiment, the packaging material supply component shown in the present embodiment is a prior art component, and other components that can achieve the above-mentioned limitations can also be used, and the present embodiment does not limit the same.

[0068] As shown in FIG. 1, Figure 1 , Figure 2 , Figure 4 and Figure 5 , a folding component 111 is arranged on the packaging material supply path and used to fold the strip-shaped packaging material in a manner that the crease 104 is located at the lower side during the continuous supply of the strip-shaped packaging material. In the present embodiment, the packaging material supply component shown in the present embodiment is a prior art component, and other components that can achieve the above-mentioned limitations can also be used, and the present embodiment does not limit the same.

[0069] As shown in FIG. 1, Figure 4 and Figure 5 , a longitudinal sealing component is arranged on the packaging material supply path and located behind the folding component 111, and used to longitudinally seal the packaging material at a given interval along the conveying direction of the folded packaging material; the adjacent longitudinal seals form upwardly open bag portions 108, and the bag portions 108 are continuously formed, and the folded packaging material forms a continuous bag body 114 after passing through the longitudinal sealing component 105. The position of the component is different from that of the prior art, and the structure is also different; the longitudinal sealing component can adopt the rotary longitudinal sealing component shown in Figure 4 or Figure 5 , and the reciprocating multi-group longitudinal sealing component, and the structure that can be achieved by the prior art can be selected according to the conveying efficiency of the packaging material, and the present embodiment does not limit the same.

[0070] As shown in FIG. 1, Figure 4 and Figure 5As shown, the vacuum bag opening component includes a bag suction rotating mechanism 1 and a following suction mechanism 2, the circular arc conveying path 101 is a part of a circular arc segment on the bag suction rotating mechanism 1; the continuous bag body 114 formed by the longitudinal sealing part is held by the bag suction rotating mechanism 1 and is conveyed in the circumferential direction along with the rotation of the bag suction rotating mechanism 1; the following suction mechanism 2 is arranged opposite to the bag suction rotating mechanism 1 and is located outside the circular arc conveying path 101; the following suction mechanism 2 rotates opposite to the bag suction rotating mechanism 1 and has the same linear speed of rotation; the continuously supplied bag body 114 passes between the following suction mechanism 2 and the bag suction rotating mechanism 1, the following suction mechanism 2 suctions the packaging material outside the bag part 108, the bag suction rotating mechanism 1 suctions the packaging material inside the bag part 108, and along with the relative rotation of the following suction mechanism 2 and the bag suction rotating mechanism 1, the bag opening 113 of the bag part 108 passing between the two is opened one by one. In this embodiment, the vacuum bag opening component is a newly added structure which is completely different from the structure of the filling and packaging machine in the prior art, and the vacuum bag opening component opens the bag opening 113 of the bag part 108 by using the principle of vacuum negative pressure to suction the bag part 108 between the bag suction rotating mechanism 1 and the following suction mechanism 2. There are many structures that can realize vacuum bag opening in the prior art, but the application of the structure to the filling and packaging machine to continuously open the continuous bag body 114 after longitudinal sealing is unique.

[0071] The filler component includes a plurality of filler rods 109, a plurality of lifting shafts 110 and a lifting cam, the filler rods 109 and the lifting shafts 110 correspond one by one, the bottom of the lifting shaft 110 is connected to the lifting cam, and the lifting shaft 110 and the filler rod 109 move synchronously in the circumferential direction with the bag suction rotating mechanism 1; while the lifting shaft 110 moves in the circumferential direction, it is limited by the trajectory of the lifting cam, the lifting shaft 110 drives the filler rod 109 to insert into the bag part 108 with the opened bag opening 113 in the circular arc conveying path 101, and the filler rod 109 is pulled out of the bag part 108 before the bag part 108 enters the extended conveying path 102. The connection mode of the filler rod 109 and the lifting shaft 110 is connected through a connecting arm, and the structure can refer to the attached Figure 2 As shown, in this embodiment, the filler rod 109 only needs to perform the lifting action and does not need to rotate around the lifting shaft 110, so in this embodiment, only the lifting cam is needed.

[0072] The filler supply component 112 is used to supply filler to the filler rod 109 and fill the filler into the bag part 108 with the opened bag opening 113 in the circular arc conveying path 101. As shown in the attached Figure 2 The filler supply component of this embodiment is the same as that in the prior art, and of course other components can also be used as the filler supply component, Figure 2The illustrated is a powder material filling material supply part. Other filling material supply structures can also be applied to the filling packaging machine of the present application, and liquids and the like can also be filled.

[0073] A top sealing part 115 is arranged on the extended conveying path 102 and is used to seal the top of the continuous bag 114 filled with the filling material, which is output from the circular arc conveying path 101. As Figure 4 And Figure 5 As shown, the present application does not limit the top sealing part 115, as long as the structure can realize continuous top sealing of the bag opening 113.

[0074] The specific structure of each component can be effectively implemented by the above technical solutions, and the specific structure of the above technical solutions not only includes the existing known structure, but also includes the improved structure suitable for the above technical solutions based on the technical solutions of the present application.

[0075] As an example, as Figure 5 shown, the circular arc conveying path 101 is arranged in a substantially circular arc shape in plan view and extends horizontally. The circular arc conveying path 101 is approximately between 1 / 2 and 3 / 4 of a circular arc.

[0076] As an example, as Figure 4 shown, the circular arc conveying path 101 is arranged in a substantially semicircular arc shape in plan view and extends horizontally. The circular arc conveying path 101 is approximately 1 / 2 of a circular arc.

[0077] According to the packaging requirements of the filling packaging machine and the requirements for the packaging rate, the circular arc conveying path 101 can be arranged in a circular arc shape between 1 / 4 and 1 / 2 of a circular arc. The actual production conditions of the filling packaging machine can be adjusted adaptively, and the present application does not make special limitations.

[0078] Embodiment 2

[0079] As another preferred embodiment of the present application, this embodiment is based on the specific implementation structure of the bag suction turntable mechanism 1 described in Embodiment 1. This embodiment proposes a specific implementation structure example of a bag suction turntable mechanism 1 with a relatively optimized structure.

[0080] As an embodiment of the present embodiment, as Figure 6 shown, the bag suction turntable mechanism 1 includes a bag suction turntable 3 and a bag suction driving assembly for driving the bag suction turntable 3 to rotate. The bag suction turntable 3 includes a turntable body 6, as Figure 10As shown, a plurality of bag suction areas 7 are uniformly arranged on the circumferential surface of the rotating disc body 6, and a suction hole 8 for packaging material on one side of the suction bag body 114 is arranged in the bag suction area 7. A shaft hole 25 for assembling the lifting shaft 110 is arranged on the rotating disc body 6, the lifting shaft 110 is uniformly distributed along the axis of the rotating disc body 6, and moves circumferentially with the rotation of the rotating disc body 6. The follow-up suction mechanism 2 comprises a suction column 4 and a bag opening driving assembly 5 for driving the rotation of the suction column 4; a plurality of bag opening areas 9 corresponding to the bag suction areas 7 on the bag suction rotating disc 3 are arranged on the circumferential surface of the suction column 4, a plurality of bag opening negative pressure holes 10 are arranged in the bag opening area 9, and the bag opening area 9 is arranged opposite to the bag suction area 7 on the bag suction rotating disc 3.

[0081] As an example, as shown in Figure 7 , the rotating disc body 6 is a solid disc structure, the rotating disc body 6 is connected to a rotating shaft, the rotating shaft is driven by a bag suction driving assembly, and the bag suction driving assembly can be a combination of a servo motor and a speed reducer. A negative pressure gas path 24 communicating with the suction hole 8 in the bag suction area 7 is arranged in the rotating disc body 6, the negative pressure gas path 24 is connected with a negative pressure rotating joint, and then connected with a negative pressure source through a pipeline structure, wherein the bag suction area 7 is an inner concave arc surface formed on the circumferential surface of the rotating disc body 6, and the arc surface is used to accommodate the arc-shaped packaging material on one side of the bag portion 108 after the bag portion 108 of the packaging material is opened, which is beneficial to keep the opening of the bag opening 113.

[0082] As a more preferred example, as shown in Figure 6 , Figure 8 and Figure 9 , the rotating disc body 6 is a hollow disc structure, the bag suction area 7 can be an inner concave arc surface formed on the circumferential side of the rotating disc body 6, each bag suction area 7 accommodates a bag portion 108, and each bag portion 108 of the continuous bag body 114 is sequentially suctioned in the bag suction area 7, and the bag opening 113 of the bag portion 108 is opened after the bag opening area 9 on the suction column 4 corresponds to the bag suction area 7.

[0083] Further preferred embodiments, as shown in Figure 9 and Figure 10 , the bottom of the rotating disc body 6 is used to dock and connect with the rotating part 12 of the hollow rotating platform 11, and the connecting structure can be assembled and connected in the form of a connecting flange structure; a plurality of bag suction modules 19 are arranged on the circumferential side of the rotating disc body 6, and a plurality of assembly holes for assembling the bag suction modules 19 are arranged on the circumferential side of the rotating disc body 6. The bag suction modules 19 replace the bag suction areas 7 on the rotating shaft side of the rotating disc body 6, the bag suction modules 19 correspondingly form the bag suction areas 7 on the circumferential surface of the rotating disc body 6, and each bag suction area 7 is independent by the arrangement of the bag suction modules 19, and if one bag suction module 19 fails, it can be replaced individually, and the maintenance cost is small.

[0084] The filling rod 109 is driven to move up and down by the lifting shaft 110 to be inserted into and pulled out of the bag part 108 with the opened bag opening 113; the shaft hole 25 for assembling the lifting shaft 110 is arranged on the rotating disc body 6, the number of the lifting shaft 110 is consistent with the number of the filling rod 109, the number of the filling rod 109 is consistent with the number of the bag suction area 7 on the rotating disc body 6, and one-to-one correspondence; the lifting shaft 110 is uniformly distributed along the axis of the rotating disc body 6 and moves circumferentially with the rotation of the rotating disc body 6. The filling rod 109 can be driven to move circumferentially by using the power of the rotating disc body 6, and the lifting cam is assembled in the hollow part of the rotating disc body 6 to realize the lifting control of the filling rod 109. From the power level, the same power source can be shared with the rotating disc body 6, and the equipment cost is lower.

[0085] Embodiment 3

[0086] As another preferred embodiment of the present application, this embodiment is a further detailed supplement and elaboration of the specific implementation structure of the bag suction rotating disc mechanism 1 based on the above-mentioned embodiments 1 and 2.

[0087] In this embodiment, as shown in Figure 9 and Figure 11 , the bag suction driving assembly is a hollow rotating platform 11, the bag suction rotating disc 3 is assembled at the rotating part 12 of the hollow rotating platform 11 at the lower end and rotates with the rotating part 12 of the hollow rotating platform 11. The hollow rotating platform 11 is used as the driving mechanism of the suction rotating disc to ensure the stability of the operation of the suction rotating disc. At the same time, it also saves the assembly space of other parts, and the lifting shaft 110 and the lifting cam for driving the filling rod 109 to lift can be assembled inside the hollow rotating platform 11, so that the overall structure is more compact.

[0088] Compared with the implementation structure shown in Figure 7 of embodiment 2, the rotating disc body 6 of the suction rotating disc of this embodiment is a hollow disc structure, a gas distribution disc 13 is arranged on the hollow rotating platform 11, the gas distribution disc 13 is fixedly assembled on the fixed part 14 of the hollow rotating platform 11, a negative pressure cavity 15 is arranged inside the gas distribution disc 13, and a communication groove 16 communicating with the suction hole 8 of the bag suction area 7 is arranged on the surface of the gas distribution disc 13. The gas distribution disc 13 provides negative pressure suction force for the bag suction area 7 on the suction rotating disc, ensuring the stability of the negative pressure suction force. Compared with the implementation structure shown in Figure 7 of the above-mentioned embodiment 2, the middle space is saved, and the situation that part of the bag suction area 7 is disabled due to the blockage of the internal negative pressure air path 24 of the structure is avoided.

[0089] The air distribution plate 13 of the embodiment is provided with a communication groove 16. The communication groove 16 is only communicated with the suction holes 8 of the suction bag area 7 on the circumferential section of the suction rotating disc at the set angle. When communicated with the communication groove 16, the suction is performed. When not communicated, the suction is not performed. The repeated switching of the negative pressure is avoided. The provided negative pressure is more stable.

[0090] As a more preferred embodiment of the embodiment, referring to the drawings Figure 12 As shown in the drawings, the air distribution plate 13 comprises an air distribution plate base 17 and an air distribution plate cover 18. The air distribution plate base 17 is fixedly assembled on the fixed part of the hollow rotating platform 11. The air distribution plate cover 18 is sealingly assembled on the air distribution plate base 17. The communication groove 16 is arranged on the air distribution plate cover 18. Since the relative rotation occurs between the air distribution plate 13 and the suction rotating disc, in order to avoid the abrasion of the air distribution plate 13, the air distribution plate 13 is divided into the air distribution plate base 17 and the air distribution plate cover 18. When the abrasion occurs, only the air distribution plate cover 18 needs to be replaced, and the overall replacement is not needed. The maintenance cost is reduced.

[0091] The air distribution plate cover 18 is made of tin-copper alloy material. A plurality of holes are drilled on the top surface of the air distribution plate cover 18. Graphite is cast in the holes. The air distribution plate cover 18 is made of tin-copper alloy material, which is more wear-resistant. The service life of the air distribution plate cover 18 is prolonged. The graphite is cast on the air distribution plate cover 18. The friction between the suction rotating disc and the air distribution plate cover 18 is reduced. The abrasion of the air distribution plate cover 18 is reduced. The service life of the air distribution plate cover 18 is further improved.

[0092] In a further preferred scheme, the holes are blind holes. The graphite is cast in the blind holes. The graphite is prevented from falling off from the through holes after a period of time of abrasion. The graphite does not fall off from the holes by using the blind hole structure.

[0093] Embodiment 4

[0094] As another preferred embodiment of the embodiment, the embodiment is based on the embodiment 2. The specific implementation structure of the suction bag module 19 is further supplemented and described in detail. As shown in the drawings, Figure 13 The suction bag module 19 comprises a module body 20. The module body 20 is a hollow structure. The outer side surface of the module body 20 is an inner concave surface 21. The suction holes 8 are arranged on the inner concave surface 21. The suction holes 8 are communicated with the internal hollow cavity of the module body 20. The bottom of the module body 20 is provided with a communication hole 22 which is abutted with the communication groove 16 of the air distribution plate 13. The suction holes 8 are communicated with the communication hole 22. The communication hole 22 is matched with the air distribution plate 13 on the hollow rotating platform 11. The negative pressure is supplied to the suction holes 8.

[0095] Embodiment 5

[0096] As another preferred embodiment of the present application, this embodiment is a further detailed supplement and elaboration of the specific implementation structure of the follow-up adsorption mechanism 2 based on the above-mentioned embodiment 1 and embodiment 2. As shown in Figure 14 The follow-up adsorption mechanism 2 further includes an adsorption column mounting seat 23, and the adsorption column 4 and the bag opening driving assembly 5 are both assembled on the adsorption column mounting seat 23. A gas distribution disc 13 is arranged between the lower end surface of the adsorption column 4 and the top surface of the adsorption column mounting seat 23. As shown in Figure 12 The structure of the gas distribution disc 13 can refer to the structure of the gas distribution disc 13 shown in embodiment 3.

[0097] In this embodiment, as an example, the bag opening driving assembly 5 of the follow-up adsorption mechanism 2 can be a gear set. By transmission of the gear set and reasonable control of the transmission ratio of the gear set, the follow-up adsorption mechanism 2 and the adsorption turntable mechanism adopt the same power source, and the linear velocities of the two are the same.

[0098] As another example, the bag opening driving assembly 5 is a combined structure of a servo motor and a speed reducer, which is connected to the adsorption column 4 through a shaft coupling to drive the adsorption column 4 to rotate.

[0099] Embodiment 6

[0100] As another preferred embodiment of the present application, this embodiment is an elaboration of the specific implementation of the longitudinal sealing component 105 for longitudinally sealing the folded packaging material based on embodiment 1.

[0101] As an embodiment of this embodiment, referring to the drawings attached to the specification Figure 4 As shown in the drawings, the longitudinal sealing component includes a pair of rotatable longitudinal sealing rollers 26, and a plurality of longitudinal sealing knife seats 27 are uniformly arranged on the circumferential surface of the longitudinal sealing roller 26. The folded packaging material passes between the two longitudinal sealing rollers 26, and the longitudinal sealing rollers 26 on both sides perform longitudinal sealing on the folded packaging material at a given interval.

[0102] As another embodiment of this embodiment, referring to the drawings attached to the specification Figure 5 As shown in the drawings, the longitudinal sealing component includes a translation assembly 28 reciprocating along the conveying direction of the folded packaging material, and the translation assembly 28 is located below the folded packaging material. A plurality of groups of longitudinal sealing knife groups are arranged side by side on the translation assembly 28 along the conveying direction of the folded packaging material, each group of longitudinal sealing knife groups includes two opposite longitudinal sealing knife seats 27, and adjacent longitudinal sealing knife groups are separated by a given interval. The folded packaging material passes between the two opposite longitudinal sealing knife seats 27, and the plurality of groups of longitudinal sealing knife groups synchronously move to perform longitudinal sealing on the folded packaging material at a given interval.

[0103] The above-mentioned are only embodiments of the present application, and common knowledge such as specific structures and / or characteristics in the scheme is not described in detail. It should be pointed out that, for those skilled in the art, without departing from the method of the present application, several modifications and improvements can also be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the implementation of the present application. The protection scope claimed by the present application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A filling and packaging machine comprising a packaging material supply member for continuously supplying a band-like packaging material (103), a folding member (111), a filler supply member (112), and a top sealing member (115), a conveying path (100) of the band-like packaging material including a horizontally extending circular arc conveying path (101) in a substantially circular arc shape in plan view, a packaging material supply path connected to a start point of the circular arc conveying path (101), and an extension conveying path (102) connected to an end point of the circular arc conveying path (101), characterized in that, Also included are: A longitudinal sealing component (105) is arranged on the packaging material supply path and located behind the folding component (111), and is used to longitudinally seal the packaging material at a given interval along the conveying direction of the folded packaging material; adjacent longitudinal seals form upwardly open bag portions (108), and the bag portions (108) are continuously formed, and the folded packaging material forms a continuous bag body after passing through the longitudinal sealing component (105); The vacuum bag opening component includes a bag suction carousel mechanism (1) and a follow-up suction mechanism (2), and the circular arc conveying path (101) is a circular arc segment on the bag suction carousel mechanism (1); the continuous bag body formed by the longitudinal sealing component is held by the bag suction carousel mechanism (1) and is conveyed in the circumferential direction as the bag suction carousel mechanism (1) rotates; the follow-up suction mechanism (2) is arranged opposite the bag suction carousel mechanism (1) and located outside the circular arc conveying path (101); the follow-up suction mechanism (2) rotates opposite the bag suction carousel mechanism (1) and has the same linear speed; the continuously supplied bag body passes between the follow-up suction mechanism (2) and the bag suction carousel mechanism (1); the follow-up suction mechanism (2) suctions the packaging material outside the bag portion (108), and the bag suction carousel mechanism (1) suctions the packaging material inside the bag portion (108); as the follow-up suction mechanism (2) and the bag suction carousel mechanism (1) rotate relative to each other, the bag openings of the bag portions (108) passing between them are opened one by one; The bag suction carousel mechanism (1) includes a bag suction carousel (3) and a bag suction drive assembly that drives the bag suction carousel (3) to rotate, the bag suction carousel (3) includes a carousel body (6), and a plurality of bag suction areas (7) are uniformly arranged on the circumferential surface of the carousel body (6), and a suction hole (8) for suctioning the packaging material on one side of the bag body is arranged in each bag suction area (7); A plurality of bag suction modules (19) are uniformly arranged on the circumferential surface of the carousel body (6), and the bag suction modules (19) correspond to the bag suction areas (7) on the circumferential surface of the carousel body (6); The bag suction module (19) includes a module body (20), the outer side surface of the module body (20) is an inner concave surface (21), the suction hole (8) is arranged on the inner concave surface (21), a communication hole (22) that is in communication with the communication groove (16) on the gas distribution disc (13) is arranged at the bottom of the module body (20), and the suction hole (8) is in communication with the communication hole (22); The filling component includes a plurality of filling rods (109), a plurality of lifting shafts (110), and a lifting cam, the filling rods (109) and the lifting shafts (110) correspond one-to-one, the bottom of the lifting shaft (110) is connected to the lifting cam, and the lifting shaft (110) and the filling rod (109) move synchronously in the circumferential direction with the bag suction carousel mechanism (1); while the lifting shaft (110) moves in the circumferential direction, it is limited in the trajectory by the lifting cam, and the lifting shaft (110) drives the filling rod (109) to be inserted into the bag portion (108) with an opened bag opening in the circular arc conveying path (101), and the filling rod (109) is pulled out of the bag portion (108) before the bag portion (108) enters the extension conveying path (102). The shaft hole (25) is arranged on the rotating disc body (6) and is used for assembling the lifting shaft (110), the lifting shaft (110) is uniformly distributed along the shaft of the rotating disc body (6) and moves in the circumferential direction along with the rotation of the rotating disc body (6).

2. The filling and packaging machine of claim 1, characterized in that: The circular arc conveying path (101) is a horizontal circular arc conveying path (101) in a 1 / 2 circular arc in a top view.

3. The filling and packaging machine of claim 1, characterized in that: The suction bag driving assembly is a hollow rotating platform (11), the lower end of the suction bag rotating disc (3) is assembled on the rotating part (12) of the hollow rotating platform (11) and rotates along with the rotating part (12) of the hollow rotating platform (11).

4. The filling and packaging machine according to claim 3, characterized in that: A gas distribution disc (13) is arranged on the hollow rotating platform (11), the gas distribution disc (13) is fixedly assembled on the fixed part (14) of the hollow rotating platform (11), a negative pressure cavity (15) is arranged in the gas distribution disc (13), and a communication groove (16) is arranged on the surface of the gas distribution disc (13) and is in communication with the suction holes (8) in the suction area (7).

5. The filling and packaging machine according to claim 4, characterized in that: The gas distribution disc (13) comprises a gas distribution disc base (17) and a gas distribution disc cover (18), the gas distribution disc base (17) is fixedly assembled on the fixed part of the hollow rotating platform (11), and the gas distribution disc cover (18) is sealingly assembled on the gas distribution disc base (17), and the communication groove (16) is arranged on the gas distribution disc cover (18).

6. The filling and packaging machine according to claim 5, characterized in that: The gas distribution disc cover (18) is made of a tin-copper alloy material, a plurality of holes are drilled in the top surface of the gas distribution disc cover (18), and graphite is poured into the holes, and the holes are blind holes.

7. The filling and packaging machine according to any of the claims from 1 to 6, characterized in that: The following mechanism (2) comprises an adsorption column (4) and a bag opening driving assembly (5) for driving the adsorption column (4) to rotate, a plurality of bag opening areas (9) matched with the suction bag area (7) of the suction bag rotating disc (3) are arranged on the circumferential surface of the adsorption column (4), a plurality of bag opening negative pressure holes (10) are arranged in the bag opening area (9), and the bag opening area (9) is arranged opposite to the suction bag area (7) of the suction bag rotating disc (3).

8. The filling and packaging machine according to claim 7, characterized in that: The following mechanism (2) further comprises an adsorption column mounting seat (23), the adsorption column (4) and the bag opening driving assembly (5) are both assembled on the adsorption column mounting seat (23), and the gas distribution disc (13) is arranged between the lower end surface of the adsorption column (4) and the top surface of the adsorption column mounting seat (23).

9. The filling and packaging machine according to any one of claims 1 to 6, characterized in that: The longitudinal sealing part (105) comprises a pair of rotatable longitudinal sealing rollers (26), a plurality of longitudinal sealing knife seats (27) are uniformly arranged on the circumferential surface of the longitudinal sealing roller (26), the folded packaging material passes between the pair of longitudinal sealing rollers (26), and the longitudinal sealing rollers (26) on the two sides perform longitudinal sealing on the folded packaging material at a given interval.

10. The filling and packaging machine according to any one of claims 1 to 6, characterized in that: The longitudinal sealing component (105) comprises a translation assembly (28) reciprocating along the conveying direction of the folded packaging material, the translation assembly (28) being located below the folded packaging material, a plurality of longitudinal sealing knife groups being arranged side by side on the translation assembly (28) along the conveying direction of the folded packaging material, each longitudinal sealing knife group comprising two opposite longitudinal sealing knife holders (27), the adjacent longitudinal sealing knife groups being spaced apart by a given interval; the folded packaging material passes between the two opposite longitudinal sealing knife holders (27), and the plurality of longitudinal sealing knife groups synchronously move to longitudinally seal the folded packaging material at intervals of the given interval.

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