CN111660609A

CN111660609A - Bag body manufacturing device, garbage bag manufacturing equipment and garbage bag manufacturing method

Info

Publication number: CN111660609A
Application number: CN202010405038.2A
Authority: CN
Inventors: 陈科杰
Original assignee: Cixi Heda Plastic Product Co ltd
Current assignee: Cixi Heda Plastic Product Co ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-09-15

Abstract

The invention provides a bag body manufacturing device, garbage bag manufacturing equipment and a garbage bag manufacturing method, wherein the bag body manufacturing device comprises a feeding mechanism, a fusion mechanism and a blow molding mechanism, the fusion mechanism comprises at least one shell, at least one heating element and a conveying element, the shell is provided with at least one fusion channel, and the heating element and the conveying element are respectively arranged in the fusion channel; the feeding mechanism transmits at least one raw material to the fusion mechanism, the fusion mechanism fuses a plurality of raw materials into a fluid state, and the blow molding mechanism performs a blow molding process on the raw materials to form the bag body with a composite film structure.

Description

Bag body manufacturing device, garbage bag manufacturing equipment and garbage bag manufacturing method

Technical Field

The invention relates to the field of garbage bag manufacturing, in particular to garbage bag manufacturing equipment with multi-layer co-extrusion manufacturing.

Background

The garbage bag is widely applied to the life of people, and people place the garbage bag in a kitchen, a toilet or a living room so as to be convenient for people to place garbage in the garbage bag and keep sanitary and clean. However, the bag body of the garbage bag in the prior art is easily damaged by garbage due to the limitations of the manufacturing materials and the manufacturing process, and the garbage stored in the garbage bag easily punctures the garbage bag due to the thin thickness of the bag body and the irregular shape of much garbage, thereby causing the pollution of the garbage to the environment.

In view of the disadvantages of the garbage bags, a new manufacturing process is urgently needed in the field of garbage bag manufacturing to enhance the firmness of the garbage bags and further improve the usability of the garbage bags.

Disclosure of Invention

The invention has the main advantages that the invention provides a bag body manufacturing device, a garbage bag manufacturing device and a garbage bag manufacturing method, wherein the bag body of the garbage bag is made of a composite film so as to enhance the firmness of the garbage bag.

Another advantage of the present invention is to provide a bag body manufacturing apparatus and a garbage bag manufacturing method, in which the garbage bag has excellent lateral and longitudinal tension, and the ductility of the garbage bag is improved.

Another advantage of the present invention is to provide a device and an apparatus for manufacturing a garbage bag, and a method for manufacturing a garbage bag, wherein the bag body is of a composite film structure, and at least one film layer of each bag body is disposed at intervals.

Another advantage of the present invention is to provide a bag body manufacturing apparatus, a garbage bag manufacturing apparatus, and a garbage bag manufacturing method, wherein a fusing mechanism is controlled to produce different layers of the bag body according to different production requirements.

Another advantage of the present invention is to provide a device and an apparatus for manufacturing a trash bag and a method for manufacturing a trash bag, wherein the fusing mechanism fuses different types of plastic materials so that the bag body forms different film layers.

Another advantage of the present invention is to provide a bag body manufacturing apparatus and a garbage bag manufacturing method, wherein the size of the bag body is controlled by the magnitude of wind force of a blowing mechanism.

Another advantage of the present invention is to provide a device and an apparatus for manufacturing a garbage bag and a method for manufacturing a garbage bag, wherein the thickness of the bag is controlled by the amount of tension of a traction mechanism.

Another advantage of the present invention is to provide a bag body manufacturing apparatus and a garbage bag manufacturing method, in which a heat sealing device and a cutting device form the bag body into the garbage bags of different structures and shapes to increase the usability of the garbage bags.

Another advantage of the present invention is to provide a bag body manufacturing apparatus and a manufacturing apparatus of a garbage bag and a manufacturing method of a garbage bag, in which a cooling process is performed on the bag body in a blow molding process to solidify the bag body.

Another advantage of the present invention is to provide a bag body manufacturing apparatus and a garbage bag manufacturing method, in which controlling the amount of wind generated by a cooling member controls the efficiency of solidification of the bag body.

Another advantage of the present invention is to provide a device and an apparatus for manufacturing a trash bag, and a method for manufacturing a trash bag, wherein at least one reinforcing rib is added to the trash bag during the manufacturing process to improve the firmness of the trash bag.

Another advantage of the present invention is that it provides a bag body manufacturing apparatus and a garbage bag manufacturing method, wherein the bag body can be manufactured into different structures of the garbage bag according to different production needs.

Additional advantages and features of the invention will be set forth in the detailed description which follows and in part will be apparent from the description, or may be learned by practice of the invention as set forth hereinafter.

According to the present invention, the aforementioned and other objects and advantages are achieved in a bag manufacturing apparatus according to the present invention comprising a feeding mechanism, a fusing mechanism and a blow molding mechanism, the fusing mechanism comprising at least a housing, at least a heating member and a conveying member, the housing having at least a fusing passage, the heating member and the conveying member being respectively disposed in the fusing passage; the feeding mechanism transmits at least one raw material to the fusion mechanism, the fusion mechanism fuses a plurality of raw materials into a fluid state, and the blow molding mechanism performs a blow molding process on the raw materials to form the bag body with a composite film structure.

According to a preferred embodiment of the invention, the blowing means comprise a blowing element and a transfer element connected to the fusion means, the transfer element transferring the fluid material to the blowing element in order to form the material into the pouches.

According to a preferred embodiment of the present invention, the blow molding mechanism includes a cooling member connected to the blow molding member for reducing the temperature of the bag manufacturing process.

According to a preferred embodiment of the present invention, the bag body manufacturing apparatus includes a reinforcing bar mounting member that mounts at least one reinforcing bar to the bag body.

According to a preferred embodiment of the present invention, the feeding mechanism comprises at least one material storage member and at least one material feeding member, the material feeding members are respectively connected to the material storage member, and the material feeding members transport the raw materials stored in the material storage member to the fusing mechanism.

According to a preferred embodiment of the invention, the bag making apparatus comprises a traction mechanism which provides a traction force to the bag formed by the blow-moulding mechanism and a collection of the bag.

According to a preferred embodiment of the present invention, the bag body manufacturing apparatus includes a control device electrically connected to the fusion mechanism, the blow molding mechanism, and the drawing mechanism, respectively, to control the operation states of the fusion mechanism, the blow molding mechanism, and the drawing mechanism.

According to a preferred embodiment of the invention, the traction mechanism comprises a first drive element and a second drive element, which form a passage through which the bag passes, the gas generated by the blowing element being retained in the bag.

According to a preferred embodiment of the invention, the traction means comprise a collecting member for collecting the pouches after the blowing process.

A trash bag manufacturing apparatus comprising:

the bag body manufacturing device; and

and the processing device is used for cutting and heat-sealing the bag body so as to form an opening and a cavity body on the bag body.

According to a preferred embodiment of the present invention, the processing device comprises a heat sealing mechanism, a cutting mechanism and a conveying mechanism, the conveying mechanism conveys the bag body to the heat sealing mechanism and the cutting mechanism, the heat sealing mechanism is used for performing a heat sealing process on a bottom end and a front end of the bag body, and the cutting mechanism is used for cutting the bag body after the heat sealing is completed so as to manufacture the garbage bags with different structures.

According to a preferred embodiment of the present invention, the heat-sealing mechanism includes a first heat-seal, a second heat-seal, and a partition, the first heat-seal and the second heat-seal being respectively located on both sides of the partition, the bag being heat-sealed by the partition so that the bottom end and the front end are heat-sealed.

According to a preferred embodiment of the invention, the processing device comprises a threading mechanism which places a threading in a channel in the front end.

According to a preferred embodiment of the invention, the processing device comprises at least one adjusting mechanism arranged on the conveying mechanism for adjusting the conveying speed of the bag bodies during the cutting process.

A method of manufacturing a trash bag, the method comprising the steps of:

(a) forming a bag body with a composite film structure; and

(b) and thermally sealing one end part and one bottom end part of the bag body to enable the bag body to form an opening and a cavity, wherein the garbage objects enter the cavity through the opening.

According to a preferred embodiment of the present invention, the method further comprises the step of (c) cutting the opening of the pouch body to form at least two tabs on the pouch body for the user to use.

According to a preferred embodiment of the present invention, the step (a) further comprises:

(a.1) forming at least one fluid-like feedstock;

(a.2) fusing the raw materials, and attaching at least two raw materials to form the composite membrane structure; and

(a.3) blow molding the stock material to form the bag.

According to a preferred embodiment of the present invention, said step (a.1) further comprises the steps of:

(a.11) withdrawing at least one of said feedstocks; and

(a.12) melting the solid raw material into a fluid state.

According to a preferred embodiment of the present invention, said step (a.3) further comprises the steps of:

(a.31) forming a gas space with a certain preset volume in the bag body, wherein the gas can form a storage space of the bag body; and

(a.32) maintaining a traction force on said bag after the injection molding is completed.

According to a preferred embodiment of the present invention, the step (a.3) further comprises the step (a.4) of forming a wind ring to perform a cooling action on the pouch body during the injection molding process to improve the curing efficiency of the pouch body.

According to a preferred embodiment of the present invention, in the step (a.12): controlling the temperature and the transmission rate of the raw material for melting.

According to a preferred embodiment of the present invention, in the step (a.31): the size of the gas space in the bag body is adjusted to control the size of the bag body.

According to a preferred embodiment of the present invention, in the step (a.32): and adjusting the traction force to control the thickness of the bag body.

Drawings

Fig. 1 is an overall schematic view of a bag body manufacturing apparatus according to a preferred embodiment of the present invention.

Fig. 2A is a schematic view of a first embodiment of a bag body manufacturing apparatus according to a preferred embodiment of the present invention.

Fig. 2B is a schematic view of a second embodiment of the bag body manufacturing apparatus according to the preferred embodiment of the present invention.

Fig. 3A is a schematic view of a third embodiment of the bag body manufacturing apparatus according to the preferred embodiment of the present invention.

Fig. 3B is a schematic view of a fourth embodiment of the bag body manufacturing apparatus according to the preferred embodiment of the present invention.

Fig. 4A is a schematic view of a first embodiment of an apparatus for manufacturing garbage bags according to a preferred embodiment of the present invention.

Fig. 4B is a schematic view of a second embodiment of the garbage bag manufacturing apparatus according to the preferred embodiment of the present invention.

Fig. 4C is a schematic view of a third embodiment of the garbage bag manufacturing apparatus according to the preferred embodiment of the present invention.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and thus the above terms are not to be construed as limiting the present invention.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

As shown in fig. 1 to 3B, a garbage bag manufacturing apparatus for manufacturing a garbage bag, in which a bag body 100 has a multi-layer composite film structure, improves the firmness of the garbage bag and prevents the garbage bag from being damaged by garbage during use. The manufacturing equipment comprises a bag body manufacturing device 10 and a processing device 20, wherein the bag body manufacturing device 10 is used for producing the bag body 100, and then the bag body 100 is subjected to cutting and heat sealing treatment through the processing device 20 to manufacture garbage bags with different structural types.

It should be noted that the bag body manufacturing apparatus 10 is manufactured such that at least one thin film layer is fused with each other to form a multi-layer composite film structure. The bag body 100 manufactured by the bag body manufacturing device 10 has good ductility, that is, the bag body 100 can bear larger longitudinal tension and transverse tension, and the garbage bag can bear heavier and larger garbage. Further, the bag body manufacturing apparatus 10 includes a feeding mechanism 11, a fusing mechanism 12, a blowing mechanism 13 and a drawing mechanism 14, wherein the raw materials for manufacturing the garbage bag are stored in the feeding mechanism 11, the feeding mechanism 11 transmits the raw materials to the fusing mechanism 12, the fusing mechanism 12 fuses the raw materials into a fluid state, and the blowing mechanism 13 performs a blowing process on the raw materials in the fluid state to form the bag body 100 having a cylindrical structure.

More specifically, the feeding mechanism 11 is capable of storing a plurality of different types of raw materials, the feeding mechanism 11 is capable of delivering the different types of raw materials to the fusing mechanism 12 according to a predetermined amount of a certain quota, and the fusing mechanism 12 is capable of fusing the plurality of raw materials. The feeding mechanism 11 includes at least one material storage member 111 and at least one material feeding member 112, wherein different kinds of the raw materials are stored in the material storage member 111, the material feeding member 112 is connected to the material storage member 111, the heating member 113 is disposed on the material feeding member 112, and the raw materials are transported from the material storage member 111 to the blow molding mechanism 13 by the material feeding member 112. The material is carried by the conveyor 112 by way of extraction or by way of caterpillar transport, and it will be understood by those skilled in the art that the manner in which the material is transported by the conveyor 112 is not a limitation of the present disclosure.

Preferably, different types of materials are fused to form the bag body 100 according to the number of layers of the composite film of the bag body 100. The fusion process is to extrude the same or different resins into a composite die head by a plurality of extruders at the same time, the resins of all layers are combined into a whole in or out of the die head, and the composite film is formed by cooling and shaping after extrusion and compounding. Preferably, the raw material is one or more of PVC, PE, PS, HDPE, and it is understood by those skilled in the art that the kind of the raw material is not limited in the disclosure of the present invention, and the garbage bag can use different kinds of the raw materials and different ratios of the raw materials according to different use characteristics.

In one embodiment, as shown in FIG. 1, the fusion mechanism 12 is a unitary structure. The fusing mechanism 12 includes a housing 121, a heating element 122 and at least one conveying element 123, the housing 121 has at least one fusing channel 1211 and a fusing chamber 1220, the heating element 122 and the conveying element 123 are respectively disposed on the housing 121, and the heating element 122 is used for adjusting the temperature in the fusing channel 1211 when in a working state. The conveying members 112 are respectively communicated with the fusion passages 121, each of the fusion passages 121 is communicated with the fusion chamber 122, the fusion passages 121 are respectively provided with different kinds of raw materials, and each of the raw materials is subjected to a fusion process in the fusion chamber 122.

The solid raw materials in the fusion channel 1211 are transformed into a fluid state, the conveying member 123 is movably disposed in the fusion channel 1211, the fluid raw materials are conveyed in the fusion chamber 1220 under the action of the conveying member 123, and the different kinds of raw materials are fused with each other to form a composite film with a multi-layer structure. Preferably, the heating element 122 is disposed outside, in the middle or inside the outer wall of the housing 121, the heating element 122 can be set to different temperatures according to different production requirements to adjust the temperature in the fusion passage 1211, and the type and relative position relationship of the heating element 122 to the housing 121 are not intended to limit the disclosure of the present invention.

In another embodiment as shown in fig. 2B, the number of the fusion mechanisms 12 is multiple, each of the fusion mechanisms 12 is arranged in sequence, the fusion mechanisms 12 are respectively connected to the feeding member 112, different kinds of the raw materials are respectively conveyed to the corresponding fusion mechanisms 12, and each of the fusion mechanisms 12 converts the raw materials into a fluid state.

Further, the fusing mechanism 12 includes a housing 121, a heating element 122 and at least one conveying element 123, the housing 121 has a fusing passage 1211, the heating element 122 and the conveying element 123 are respectively disposed in the housing 121, and the heating element 122 is used for adjusting the temperature in the fusing passage 1211 when in the working state. The other ends of the fusion mechanisms 12 are communicated with each other, that is, the fusion passages 1211 are communicated with each other, the conveying member 112 is respectively communicated with the fusion passages 121, each fusion passage 121 is communicated with the fusion chamber 122, the fusion passages 121 respectively have different kinds of the raw materials, and the raw materials are subjected to a fusion process in the fusion chamber 122.

It is worth mentioning that the specific temperature setting in the fusion chamber 1220 is further adjusted according to the screw design, extruder back pressure limitations, matching of rheology with other materials during co-extrusion, and thermal stability effects of other materials. In addition, the residence time of the binder resin in the extruder also affects the quality of the film, and it should be as smooth as possible to flow in the extruder.

As shown in fig. 2A and 2B, the fusing mechanism 12 performs a fusing process on different kinds of the raw materials, and the raw materials are fused with each other to form a composite structure, i.e., the bag body has a multi-layer structure. Preferably, the bag 100 can be classified as either ABC or AB, with the ABC being understood as the bag having three thin-walled layers, the thin-walled layers on both sides being the same, and the thin-walled layer in the middle being of a different type than the thin-walled layers on both sides. The position of the middle thin-walled layer relative to the two thin-walled layers can be adjusted according to different requirements to increase the transverse tension or the longitudinal tension of the bag body 100. The AB-type is understood to mean that the bag body 100 has two or more different kinds of the thin-walled layers, which are sequentially fusion-connected to each other. It will be understood by those skilled in the art that the number of layers of the bag 100 is not a limitation of the present disclosure.

When the garbage is placed in the bag body 100, when the bag body 100 is subjected to an acting force, the garbage in the bag body 100 forms a longitudinal acting force on the bottom end of the bag body under the action of gravity, and the bag body 100 has a stretching effect. If the bag 100 has insufficient thickness or ductility, the bag 100 will be damaged once the weight of the garbage borne by the bag 100 exceeds a predetermined value. Or when the bag 100 is required to carry a larger volume of waste, the waste exerts an outward force on the bag 100, and if the bag 100 has insufficient lateral extension, the bag 100 may be damaged. The bag body 100 of the present invention is a composite film structure, which has an increased thickness and a longitudinal tensile force capable of bearing a greater tensile force, and can contain more garbage.

It should be noted that the blow molding mechanism 13 includes a blow molding member 131 and a transmission member 132, the transmission member 132 is connected to the fusion mechanism 13 and the blow molding member 131, and the fusion mechanism 13 transmits the fluid substances of different raw materials to the blow molding member 131 through the transmission member 132. The blowing piece 131 is a cylindrical structure with a certain preset length, the blowing piece 131 can generate certain wind power, the fluid extends from the periphery of the blowing piece 131, and then an air pressure is formed in the middle of the fluid, so that the fluid forms the cylindrical structure.

It should be noted that the blowing mechanism 13 includes a cooling element 133, the cooling element 133 is mounted on the blowing element 131, the cooling element 133 in an operating state can generate an air ring, that is, the air generated by the cooling element 133 surrounds the cylindrical bag 100, the bag 100 in a blowing process has a certain temperature, and the cooling element 133 can reduce the temperature of the bag 100 to improve the solidification efficiency of the bag 100. The amount of wind generated by the cooling member 133 is adjusted to control the solidification efficiency of the bag body 100 to be different.

Further, the pulling mechanism 14 arranges and collects the bag body 100 formed in a cylindrical shape. The traction mechanism 14 and the blow molding mechanism 13 have a certain preset distance, and the bag body 100 with a cylindrical structure passes through the traction mechanism 14 to form a belt-shaped structure so as to be beneficial to collection. It is worth mentioning that a jet of gas is formed between the drawing means 14 and the blow-moulding member 131, said gas being maintained constantly in contact with the pouch 100. The size of the bag body 100 is controlled by adjusting the amount of wind generated from the blow-molded member 131. When the wind force of the blowing piece 131 increases, the volume of the gas increases, and thus the volume of the bag body 100 increases; when the wind force of the blowing member 131 is reduced, the volume of the gas is reduced, and thus the volume of the bag body 100 is reduced.

Furthermore, the pulling mechanism 14 includes a first driving member 141 and a second driving member 142, and a predetermined gap is formed between the first driving member 141 and the second driving member 142 to form a channel for the bag 100 to pass through. The fluid bag 100 passes through the blow molding member 131 to form a cylindrical structure, and passes through the passage between the first driving member 141 and the second driving member 142. The first driving member 141 and the second driving member 142 have good air tightness therebetween, so that when the bag body 100 is changed from a cylindrical structure to a belt-shaped structure, the gas is always kept in the cylindrical structure of the blow-molded member 131 because the manufacturing process of the bag body 100 is in a process of a flow line, and the gas in the bag body 100 having a cylindrical shape is eliminated only when the blow-molded member 131 is in a stop state.

It should be noted that the traction mechanism 14 includes a collecting member 143, and the bag body 100 in a belt shape after being acted by the first driving member 141 and the second driving member 142 is collected in the collecting member 143. The collecting member 143 is a rotating roller, and the bag 100 is collected in the collecting member 143 for subsequent work.

It should be noted that the traction mechanism 14 includes at least one blocking member 144, the blocking member 144 is respectively installed at the lower spaces of the first driving member 141 and the second driving member 142, the blocking member 144 is located at two sides of the bag body 100, when the cylindrical bag body 100 passes through the blocking member 144, the bag body 100 at two sides is bent inward, and after passing through the first driving member 141 and the second driving member 142, two side edges of the bag body 100 are formed.

It should be noted that when the collecting member 143 is used to form bags of different sizes by the forming mechanism 10, the traction mechanism 14 provides a traction force to the bags to keep the bags in a manufacturing process. When the acting force of the traction force is increased, the traction force applied to the bag body in the same time is increased under the same wind power and temperature, the bag body is stretched too fast, and then the volume of the bag body is reduced and the thickness of the outer wall layer of the bag body is reduced. When the traction force of the traction mechanism 14 is reduced, the traction force applied to the bag body in the same time is reduced under the same wind power and temperature, so that the bag body is stretched slowly, and the thickness of the outer wall layer of the bag body of the ice skate is increased when the volume of the bag body is increased.

Further, when the traction force provided by the traction mechanism 14 is consistent, the wind force generated by the blowing member 131 is increased, the outward stretching force of the bag body is increased under the action of the wind force, the outward extending speed of the bag body is increased, the volume of the bag body is increased, and the thickness of the outer wall layer of the bag body is reduced. When the wind force generated by the blowing member 131 is reduced, the outward expansion force of the bag body under the action of the wind force is reduced, and the bag body extends slowly outward, so that the volume of the bag body is reduced and the thickness of the outer wall layer of the bag body is increased.

Further, when the pulling force of the pulling mechanism 14 and the wind force generated by the blowing member 131 are not changed, and the wind force of the cooling member 133 forming the wind ring is increased, the cooling effect of the cooling member 133 on the bag body is accelerated, so that the time for deformation of the bag body is reduced, the volume of the bag body is increased, and the thickness of the outer wall layer of the bag body is increased. When the wind force of the wind ring formed by the cooling piece 133 is reduced, the cooling effect of the cooling piece 133 on the bag body is slowed down, so that the time for deformation of the bag body is increased, the volume of the bag body is reduced, and the thickness of the outer wall layer of the bag body is reduced.

It should be noted that the blow molding mechanism 13 further includes a rib mounting member 134, the rib mounting member 145 is mounted on the blow molding member 131, and the rib mounting member 134 can mount at least one rib on the thin wall layer when the bag body 100 is formed by the blow molding member 131, so as to enhance the firmness of the garbage bag. Preferably, the reinforcing ribs are annularly distributed on the inner wall of the bag body 100, and a certain preset distance is provided between the reinforcing ribs. Or the ribs may be attached between the thin-walled layers when the fusion mechanism 13 forms the fluid bag 100. It is understood by those skilled in the art that the installation position relationship and connection manner of the reinforcing ribs and the bag body are not a limitation of the present invention.

It should be noted that the bag body manufacturing apparatus 10 includes a control device 15, the control device 15 is electrically connected to the working state of the bag body manufacturing apparatus 10, and the bag body manufacturing apparatus 10 manufactures the bag bodies 100 of different specifications according to different production parameters. Preferably, the control device 15 is electrically connected to the bag body manufacturing apparatus 10 in a wired or wireless manner, that is, the control device 15 is connected to the bag body manufacturing apparatus 10 in a wired manner through a data line, or the control device 15 is wirelessly connected to the bag body manufacturing apparatus 10 through a wireless transmission device, a user presets an operating parameter to the control device 15, and the control device 15 controls an operating state of the bag body manufacturing apparatus 10 according to a control instruction, for example, the control device 15 can control an operating state such as a fusion temperature of the raw materials, a type of fusion of the raw materials, or a size formed by the bag body 100 and a thickness of an outer wall layer in a manufacturing process of the bag body manufacturing apparatus 10.

Further, the control device 15 includes a temperature adjusting member 151, the temperature adjusting member 151 is electrically connected to the heating member 122, different temperature parameters are set by the temperature adjusting member 151, the temperature adjusting member 151 feeds back the set parameters to the heating member 122, and the heating member 122 performs temperature adjustment according to different types of raw materials, so as to melt the solid raw materials into a fluid state.

Further, the control device 15 includes a wind force adjusting member 152, and the wind force adjusting member 152 is electrically connected to the blow molding mechanism 13 to control the magnitude of the wind force generated by the blow molding mechanism 13, and the magnitude of the wind force is used for controlling the cooling time during the blow molding of the bag body 100. When other production parameters are constant and the wind power generated by the blowing mechanism 13 is increased, the volume of the bag body 100 is increased and the thickness of the outer wall layer is reduced; when the wind force generated by the blowing mechanism 13 decreases, the volume of the bag body 100 decreases and the thickness of the outer wall layer increases.

Further, the control device 15 includes a speed adjusting member 153, and the speed adjusting member 153 is electrically connected to the traction mechanism 14 to adjust the rotation speed of the traction mechanism 14, so as to adjust the amount of the traction force generated by the traction mechanism 14. When the traction force of the traction mechanism 14 is increased when other production parameters are constant, the volume of the bag body 100 is reduced and the thickness of the outer wall layer is reduced; when the pulling force of the pulling mechanism 14 is reduced, the volume of the bag body 100 increases and the thickness of the outer wall layer increases.

Further, the control device 15 includes a material selecting member 154, the material selecting member 154 is disposed on the feeding mechanism 11, and the material selecting member 154 is used for controlling the working state of the feeding mechanism 11. When the material selecting member 154 controls the feeding mechanism 11 to be in the open working state, the material in the feeding mechanism 11 is conveyed to the fusing mechanism 12. When the material selecting member 154 controls the feeding mechanism 11 to be in the closed working state, the feeding mechanism 11 cannot convey the material to the fusing mechanism 12. In other words, the material selecting member 154 can select the type of the material according to the manufacturing specification of the bag 100, and after a plurality of types of the materials are stored in the feeding mechanism 11, the material is selected according to the bag 100 with different specifications, so that an operator does not need to repeatedly change the type of the material, thereby improving the production efficiency.

As shown in fig. 4A to 4C, the manufacturing process of the garbage bag is performed after the bag body is manufactured. The bag body 100 enters the processing device 20, and the processing device 20 performs a cutting process and a heat sealing process on the bag body 100, so that the bag body 100 can be made into the garbage bags with different structural types. The processing device 20 comprises at least one heat-sealing mechanism 21 and at least one cutting mechanism 22, the bag body is firstly right through the heat-sealing mechanism 21 to the front end part and the bottom end part of the bag body 100, so as to be right the bag body 100 is subjected to edge sealing process, then the cutting mechanism 22 is right the bag body 100 is cut, so that the garbage bag is formed into a structure with a binding band type, so that a user can conveniently conduct the closing process of the garbage bag. It is worth mentioning that the cutting process is not a necessary process for all types of the trash bag manufacturing, and after the heat-sealing process is performed on the bottom end portion of the bag body, the heat-sealing process is not required on the front end portion, or the heat-sealing process is performed on a part of the front end portion, so as to manufacture the trash bag.

In a preferred embodiment, the heat sealing mechanism 21 includes a first heat seal 211, a second heat seal 212, and a partition 213, and the first heat seal 211 and the second heat seal 212 are respectively disposed on the partition 213. Further, the first heat-sealing member 211 and the second heat-sealing member 212 are respectively located at two sides of the partition 213, when the bag body 100 passes through the heat-sealing mechanism 21, the partition 213 enters a cavity of the bag body 100, so that two side edges of the bag body 100 are respectively located at the first heat-sealing member 211 and the second heat-sealing member 212, the first heat-sealing member 211 and the second heat-sealing member 212 respectively move towards the partition 213, and the bag body 100 forms an edge sealing process to enhance the firmness of the bottom of the bag body 100. The heat-sealing times of the heat-sealing mechanism 21 to the bottom of the bag body 100 can be set for multiple times according to different production specifications, and the more the heat-sealing times of the heat-sealing mechanism 21 to the bag body 100 are, the more the heat-sealing strips of the bag body are correspondingly increased. The partition 213 functions such that both sides of the bag body 100 are not heat-sealed to form the cavity.

It should be noted that the first heat seal 211 and the second heat seal 212 respectively have at least one sawtooth, and when the first heat seal 211 and the second heat seal 212 respectively perform the heat sealing process on the bag body 100, the sawtooth forms a segment line at the sealing position, so as to facilitate the separating process of the garbage bag during the use process.

It is worth mentioning that the processing device 20 further comprises a feeding mechanism 23, and the bag 100 is connected to the feeding mechanism 23 to be transported in the manufacturing apparatus. Conveying structure 23 a conveyer 231 and a driving piece 232, driving piece 232 electricity even connect in conveyer 231, heat-seal mechanism 21 with cut the mechanism 22 and connect respectively in conveyer 231, the bag body 100 by conveyer 231 is in heat-seal mechanism 21 with cut the work that the mechanism 22 is in the assembly line. The driving member 232 is used for controlling the working state of the conveying member 231, for example, controlling the conveying member 231 to be in an open or closed state or controlling the conveying rate of the conveying member 231.

It is worth mentioning that processing apparatus 20 includes a threading mechanism 24, works as heat-seal mechanism 21 is right the bag body 100 carries out the heat-seal in-process, heat-seal mechanism 21 is in the tip of the bag body 100 carries out two heat-seal processes at least, so that the tip forms a passageway through the mode of heat-seal, threading mechanism 24 can with a threading set up in the passageway, and then the disposal bag has a threading structure, works as after the disposal bag deposited rubbish, the user is through tightening up the threading is in closing device in order to control the opening of disposal bag, user's use of being convenient for.

It should be noted that the processing device 20 includes at least one adjusting mechanism 25, the adjusting mechanism 25 is disposed on the conveying member 231, and the adjusting mechanism 25 is used for adjusting the conveying speed of the bag 100. The bag body 100 is driven by the driving member 232 to be transported, and the bag body 100 has a thin film structure, so that the bag body is light in weight and has a large friction force with the manufacturing equipment during transportation. Therefore, the stability of the bag body during the transportation process is weak, and the smoothness of the bag body during the heat-sealing process and the cutting process is different, which seriously affects the manufacturing quality of the garbage bag. After the adjusting mechanism 25 acts on the bag body 100, when the bag body 100 is subjected to a traction force transmission, the adjusting mechanism 25 can adjust the transmission rate of the bag body 100. After the garbage bag is manufactured, the garbage bag is in a collecting process, the bag body 100 is in a state of being stressed at two ends in the manufacturing equipment, and the adjusting mechanism 25 can adjust the transmission rate of the bag body 100 according to the transmission stress change of the bag body 100. When the traction force applied to the bag body 100 is increased, the adjusting mechanism 25 correspondingly increases the acting force on the bag body 100 to reduce the transmission rate of the bag body 100; when the pulling force applied to the bag body 100 is reduced, the adjusting mechanism 25 correspondingly reduces the acting force applied to the bag body 100 to increase the transmission rate of the bag body 100, and under the action of the adjusting mechanism 25, the bag body 100 is stably transmitted to the heat sealing mechanism 21 and the cutting mechanism 22, so as to improve the manufacturing quality of the garbage bag and make the connection between the bag bodies 100 tighter during the collection process of the garbage bag.

In another film manufacturing method, the feeding mechanism 11 includes at least one material storage 111 and at least one material feeding member 112, different kinds of raw materials are stored in the material storage 111, the material feeding member 112 is connected to the material storage 111, the raw materials are transported from the material storage 111 to the fusing mechanism 12 through the material feeding member 112, the fusing mechanism 12 performs a melting process on the raw materials, and the raw materials are converted from granular state to fluid state.

It should be noted that the blowing mechanism 13 includes a blowing member 131 and a conveying member 132, the conveying member 132 is disposed on the blowing member 131, and the fluid of the raw material is conveyed to the blowing member 131 through the conveying member 132. The blowing piece 131 is a cylindrical structure with a certain preset length, the blowing piece 131 can generate certain wind power, the fluid extends from the periphery of the blowing piece 131, and then an air pressure is formed in the middle of the fluid, so that the fluid forms the cylindrical structure. The blow-molded part 131 forms the raw material into a thin film structure.

It should be noted that the fusion mechanism 12 has at least one fusion channel 1211 and a fusion chamber 1210, the thin films are respectively transmitted to the fusion channel 1211, the fusion channel 1211 is communicated with the fusion chamber 1210, and the thin films are installed in a predetermined sequence to perform a fusion process in the fusion chamber 1210, so as to obtain the thin film of the multilayer composite film. The technical feature of the present embodiment is that the raw material is mixed to form a fluid state in the fusion mechanism 12 and then blown to form the thin film with a multi-layer structure. In this embodiment, the blowing mechanism 13 and the feeding mechanism 11 first form films for the individual types of raw materials, respectively, and then the various types of films form a plurality of co-extruded structures in the fusion chamber 1210.

It should be noted that the fusing mechanism 12 fuses different kinds of the raw materials in such a way that a thin-wall layer is formed on each of the raw materials, and then the thin-wall layers of the respective kinds are fused to form a multi-layer structure. Preferably, the bag 100 can be classified as either ABC or AB, with the ABC being understood as the bag having three thin-walled layers, the thin-walled layers on both sides being the same, and the thin-walled layer in the middle being of a different type than the thin-walled layers on both sides. The position of the middle thin-walled layer relative to the two thin-walled layers can be adjusted according to different requirements to increase the transverse tension or the longitudinal tension of the bag body 100. The AB-type is understood to mean that the bag body 100 has two or more different kinds of the thin-walled layers, which are sequentially fusion-connected to each other. It will be understood by those skilled in the art that the number of layers of the bag 100 is not a limitation of the present disclosure.

The invention relates to a method for manufacturing a garbage bag with a multilayer composite film, which comprises the following steps:

(c) forming a bag 100 having a multi-layer composite film;

(d) one end and a bottom end of the bag 100 are heat sealed to form an opening and a cavity in the bag 100, through which the waste material enters.

It is worth mentioning that the method further comprises the step of (c) cutting the opening of the bag body 100 to form at least two pull tabs on the bag body 100 for the user to use.

It is worth mentioning that the step (a) further comprises:

(a.1) forming at least one fluid-like feedstock;

(a.3) blow molding the stock material to form the bag.

It is worth mentioning that the step (a) further comprises the steps of: (a.4) collecting the bag 100.

It is worth mentioning that the step (a.1) further comprises the steps of:

(a.11) withdrawing at least one of said feedstocks, which may be the same or different in type; and

(a.12) melting the solid raw material into a fluid state.

It is worth mentioning that the step (a.3) further comprises the steps of:

(a.31) forming a gas space with a certain preset volume in the bag body 100, wherein the gas can form a storage space of the bag body 100; and

(a.32) maintaining a traction force on the bag 100 after injection molding.

It is worth mentioning that the step (a.3) further includes the step (a.4) of forming a wind ring to cool the bag body 100 during the injection molding process, so as to improve the curing efficiency of the bag body 100.

It is worth mentioning that, in the step (a.12): controlling the temperature and the transmission rate of the raw material for melting.

It is worth mentioning that, in the step (a.31): the size of the gas space in the bag 100 is adjusted to control the size of the bag.

It is worth mentioning that in the step (a.32): the magnitude of the traction force is adjusted to control the thickness of the bag body 100.

Those skilled in the art will appreciate that the embodiments of the invention illustrated in the drawings and described above are merely exemplary and not limiting of the invention.

It can thus be seen that the objects of the invention are sufficiently well-attained. The embodiments for explaining the functional and structural principles of the present invention have been fully illustrated and described, and the present invention is not limited by changes based on the principles of these embodiments. Accordingly, this invention includes all modifications encompassed within the scope and spirit of the following claims.

Claims

1. A bag body manufacturing installation, make the bag body of a complex film structure with at least a raw materials, its characterized in that includes:

a feeding mechanism;

the fusion mechanism comprises at least one shell, at least one heating element and a conveying element, wherein the shell is provided with at least one fusion channel, and the heating element and the conveying element are respectively arranged in the fusion channel; and

the feeding mechanism transmits at least one raw material to the fusion mechanism, the fusion mechanism fuses a plurality of raw materials into a fluid state, and the blow mechanism performs a blow molding process on the raw materials to form the bag body with a composite film structure.

2. The bag body making apparatus according to claim 1, wherein said blowing mechanism includes a blowing member and a transfer member, said transfer member being connected to said fusing mechanism, said transfer member transferring said fluid form of said raw material to said blowing member to form said raw material into said bag body.

3. The bag body manufacturing apparatus according to claim 2, wherein the blow molding mechanism includes a cooling member connected to the blow molding member, the cooling member being configured to reduce a temperature of the bag body manufacturing process.

4. The bag body manufacturing apparatus according to claim 3, wherein the bag body manufacturing device includes a reinforcing rib mounting member that mounts at least one reinforcing rib to the bag body.

5. The bag body manufacturing apparatus according to claim 4, wherein the feeding mechanism comprises at least one stock member and at least one feeding member, the feeding members being connected to the stock members, respectively, and the feeding member transports the raw material stored in the stock members to the fusing mechanism.

6. The bag body making apparatus according to claim 5, wherein said bag body making apparatus comprises a pulling mechanism which provides a pulling force to the bag body formed by said blow molding mechanism and a collection of said bag body.

7. The bag manufacturing apparatus according to claim 6, wherein the bag manufacturing apparatus comprises a control device electrically connected to the fusing mechanism, the blow-molding mechanism, and the drawing mechanism, respectively, to control the operating states of the fusing mechanism, the blow-molding mechanism, and the drawing mechanism.

8. The disposal bag making apparatus as recited in claim 7, wherein the pulling mechanism includes a first driving member and a second driving member, the first driving member and the second driving member forming a passage through which the bag body passes through the first driving member and the second driving member, the bag body being retained by the gas generated by the blowing member.

9. The bag body manufacturing apparatus according to claim 8, wherein said drawing mechanism includes a collecting member for collecting said bag body after completion of the blow molding process.

10. A trash bag manufacturing apparatus, comprising:

the pouch body making apparatus according to any one of claims 1 to 9; and

11. The trash bag manufacturing apparatus of claim 10, wherein the processing device comprises a heat sealing mechanism, a cutting mechanism and a conveying mechanism, the conveying mechanism conveys the bag body to the heat sealing mechanism and the cutting mechanism, the heat sealing mechanism is used for performing a heat sealing process on a bottom end portion and a front end portion of the bag body, and the cutting mechanism is used for cutting the bag body after the heat sealing is completed so as to manufacture the trash bags with different structures.

12. The trash bag making apparatus of claim 11, wherein the heat sealing mechanism includes a first heat seal, a second heat seal, and a divider, the first heat seal and the second heat seal being located on opposite sides of the divider, the bag being heat sealed by the divider to form the bottom end and the front end.

13. The trash bag making apparatus of claim 12, wherein the processing device includes a threading mechanism that places a threading in a channel in the front end.

14. The trash bag making apparatus of claim 13, wherein the processing device includes at least one adjustment mechanism disposed in the conveyor mechanism for adjusting the speed of the bag body during cutting.

15. A method of manufacturing a trash bag, the method comprising the steps of:

(a) forming a bag body with a composite film structure; and

16. The method of making a trash bag of claim 15, wherein the method further comprises the step of (c) cutting the opening of the bag body to form the bag body with at least two tabs for the user to use.

17. The method of making a trash bag of claim 15, wherein step (a) further comprises:

(a.1) forming at least one fluid-like feedstock;

(a.3) blow molding the stock material to form the bag.

18. The method of making a trash bag of claim 17, wherein the step (a.1) further comprises the steps of:

(a.11) withdrawing at least one of said feedstocks; and

(a.12) melting the solid raw material into a fluid state.

19. The method of making a trash bag of claim 18, wherein the step (a.3) further comprises the steps of:

20. The method of making a trash bag of claim 19, wherein said step (a.3) further comprises the step of (a.4) forming a wind ring to cool said bag during the injection molding process to increase the curing efficiency of said bag.

21. A method of manufacturing a garbage bag according to claim 20, wherein in step (a.12): controlling the temperature and the transmission rate of the raw material for melting.

22. The method of making a trash bag of claim 21, wherein in step (a.31): the size of the gas space in the bag body is adjusted to control the size of the bag body.

23. A method of manufacturing a disposal bag as defined in claim 22, wherein in said step (a.32): and adjusting the traction force to control the thickness of the bag body.