Edge roll forming device of composite material double-layer container

Abstract

The invention provides an edge roll forming device of a composite material double-layer container, which comprises a machine table, an upper base plate, a supporting base plate and a lower base plate are respectively connected to the machine table from top to bottom, and a rotating power source is arranged above the upper base plate; the pressing mechanism comprises a rotating shaft, the upper end of the rotating shaft penetrates through the upper base plate and is connected with a rotating power source, the lower end of the rotating shaft penetrates through the supporting base plate and is connected with a blank head seat, and the rotating shaft is connected with at least two rotating cams between the upper base plate and the supporting base plate; the edge rolling mechanism at least comprises two groups of edge rolling devices, each group of edge rolling devices comprises a linkage rod, the upper end of the linkage rod is connected with a driven wheel, the driven wheel can be pushed by the rotating cam, and the lower end of the linkage rod penetrates through the supporting base plate and is connected with an edge rolling wheel; the jacking mechanism is arranged above the lower base plate, the jacking power source is connected with a jacking rod, the upper end of the jacking rod is connected with the bearing disc, and the bearing disc can be used for placing a double-layer container.

Description

Technical Field

[0001] This invention relates to an edge-rolling forming device for combining paper cups and plastic cups into a composite double-layer container, and in particular to a mechanism that uses rotation to fix the edges of the two containers together. Background Technology

[0002] Currently, cups commonly used in the market to hold hot beverages often require an outer sleeve for use due to the high temperature of the cup. For example, Chinese Patent No. 200920148189.3 discloses a disposable paper-plastic insulated cup, which includes a cup body with an annular insulating sleeve on the outside. The upper and lower ends of the annular insulating sleeve are fixed to the upper and lower ends or near the ends of the cup body, and an air insulation layer is formed between the annular insulating sleeve and the cup body. This disposable paper-plastic insulated cup employs a double-layer structure for the cup body: a plastic cup body with a color-printable paper sleeve, and an air insulation layer between them, achieving good heat preservation. The plastic cup body is leak-proof, while the paper sleeve is color-printable, thus achieving the combined effects of heat preservation, leak-proofness, and color printing. However, the inner and outer cups of the patent are glued together, making it difficult to separate the plastic from the paper sleeve during recycling. Even if they are separated, glue residue will remain on the outer plastic layer or the paper sleeve, increasing the processing steps and costs during recycling.

[0003] In addition to directly bonding the aforementioned plastic inner cup and paper outer cup with adhesive, the applicant has developed an automatic double-walled cup production equipment and method, which has been granted Taiwan Invention Patent No. TWI828379. The first cup-feeding device of this patent includes: a cup holder having a plurality of cup-containing structures, each cup-containing structure having an opening corresponding to the cup holder, each cup-containing structure for accommodating at least one first cup; and a plurality of cup-dropping screws disposed on the lower side of the cup holder and corresponding to the plurality of openings of the cup-containing structures, the cup-dropping screws controlling the first cup to fall onto the cup holder; the second cup-feeding device includes: a second cup holder having a plurality of second cup-containing structures, each second cup-containing structure having an opening corresponding to the cup holder, each second cup-containing structure for accommodating at least one second cup; and a plurality of cup-dropping screws. A screw is disposed on the lower side of the second cup holder and corresponds to a plurality of openings of the second cup structure. The lower cup screw controls the second cup body to fall into the first cup body. A pressing device and a finished product transport device are disposed on the pressing side, and the position of the finished product transport device is defined as a work end position. The pressing device includes: an upper mold base plate and a lower mold base plate are disposed parallel to one side of a stand. The upper mold base plate is disposed above the cup holder, and the lower mold base plate is disposed below the cup holder. A plurality of upper pressing units are disposed on the upper mold base plate, and a plurality of lower pressing units are disposed on the lower mold base plate. A drive module is connected to the lower mold base plate. The drive module drives the lower mold base plate to move up and down along a vertical direction, so that the lower pressing units press with the upper pressing units, so that the first cup body and the second cup body on the cup holder are pressed together to form a double-layer cup. Summary of the Invention

[0004] In view of the fact that previous technologies could not speed up production and that during compression molding, the container and the mold would stick together, causing the mold to be pulled up along with the container, resulting in production line interruption, the purpose of this invention is to provide a side-roll forming device for a composite material double-layer container, which can quickly roll and fix two containers of different materials to form a composite material double-layer container.

[0005] This invention provides an edge-rolling forming apparatus for a composite material double-layer container. The apparatus, installed on a composite material double-layer container forming device, includes: a machine base connected from top to bottom to an upper substrate, a supporting substrate, and a lower substrate; a rotational power source positioned above the upper substrate; and a pressing mechanism including a rotating shaft. The upper end of the rotating shaft passes through the upper substrate and is connected to the rotational power source, while the lower end passes through the supporting substrate and is connected to a blank holder. The rotating shaft can rotate between the upper substrate and the supporting substrate. At least two rotating cams are connected between the plates; a side-winding mechanism includes at least two sets of side-winders, each set of side-winders including a linkage rod, the upper end of which is connected to a driven wheel, the driven wheel being pushed by the rotating cam, the lower end of which extends through the support base plate and is connected to a side-winding wheel; wherein, the side-winding wheel has a winding and forming section; a lifting mechanism is disposed above the lower base plate, the lifting mechanism including a fixed base, a lifting power source and a support plate, the lifting power source being disposed on the fixed base, the lifting power source being connected to a lifting rod, the upper end of which is connected to the support plate, the support plate being for placing double-layer containers.

[0006] The edge rolling forming device for the composite material double-layer container, wherein the composite material double-layer container forming equipment includes at least a first conveying turntable and a second conveying turntable, and the first conveying turntable is provided with a heater.

[0007] The edge rolling forming device for the composite material double-layer container is wherein the edge rolling forming device is mounted on the second conveyor plate.

[0008] The aforementioned edge-rolling forming device for a composite material double-layer container, wherein the composite material double-layer container comprises a paper outer layer and a plastic inner layer.

[0009] The edge rolling forming device for the composite material double-layer container, wherein the heater is used to heat and soften the upper edge of the plastic inner layer.

[0010] The edge rolling forming device for the composite material double-layer container, wherein the lifting power source is any one of a pneumatic cylinder, a hydraulic cylinder, or a servo motor.

[0011] The edge rolling forming device for the composite material double-layer container, wherein the fixing base is composed of a lower layer plate, a plurality of support rods and an upper layer plate with perforations.

[0012] The edge rolling forming device for the composite material double-layer container, wherein the lifting power source is disposed on the lower plate, the lifting rod extends through the perforation of the upper plate and is connected to the bearing plate, and the lifting rod is fitted with a buffer spring, and the buffer spring is located above the upper plate and between the bearing plate.

[0013] This invention relates to a double-layered container consisting of a paper outer layer and a plastic inner layer that are nested together but not rolled up. A lifting mechanism lifts the double-layered container upwards to the bottom edge of the preform seat. A servo motor drives a rotating shaft to rotate, which in turn drives the preform seat and the double-layered container to rotate. The rotating cam on the rotating shaft rotates, causing the edge rolling wheel of the edge rolling device to move away from or closer to the rolled-up area of ​​the double-layered container. Through rapid rotation, the edges of the two different materials are rolled up and fixed to form a composite material container. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a schematic diagram of the forming of the double-layer container and the edge rolling device of the present invention.

[0016] Figure 3 This is a schematic diagram of the forming equipment according to the present invention.

[0017] Figure 4 This is a top view schematic diagram of the rotary cam and driven wheel operation of the present invention.

[0018] Figure 5 This is a schematic diagram of the operation of the side rolling wheel and the blank head seat of the present invention.

[0019] Figure 6 This is a schematic diagram of the double-layer container of the present invention in the unwound state of the side rolling wheel and the blank head seat.

[0020] Figure 7 This is a schematic diagram showing the double-layer container and the lifting mechanism of the present invention in a state where the double-layer container, the side rolling wheel, and the blank head seat are rolled together.

[0021] Explanation of reference numerals in the attached drawings: 1-Machine base; 11-Upper substrate; 111-Perforation; 12-Support substrate; 121-Perforation; 13-Lower substrate; 14-Rotation power source; 2-Pressing mechanism; 21-Rotation shaft; 22-Preform head seat; 23-Rotation cam; 3-Side winding mechanism; 31-Side winding device; 32-Linking rod; 33-Passive wheel; 34-Side winding wheel; 341-Rolling molding part; 4-Lifting mechanism; 41-Fixed seat; 411-Lower layer plate; 412-Support rod; 413-Upper layer plate; 414-Perforation; 42-Lifting power source; 43-Bearing plate; 44-Lifting rod; 45-Buffer spring; 5-Double-layer container; 51-Plastic inner layer; 52-Paper outer layer; 6-Double-layer container molding equipment; 61-First conveyor turntable; 611-Heater; 62-Second conveyor turntable. Detailed Implementation

[0022] The features of the present invention will be described in detail below through embodiments. First, please refer to... Figure 1 and Figure 2As shown, the present invention provides a side-rolling forming device for a composite material double-layer container. The device A includes: a machine base 1, which is connected from top to bottom to an upper substrate 11, a support substrate 12 and a lower substrate 13. The upper substrate 11 is provided with a through hole 111 and a rotational power source 14, which may be a servo motor, is provided above the upper substrate 11. The support substrate 12 is provided with a plurality of through holes 121; a pressing mechanism 2, which includes a rotating shaft 21. The upper end of the rotating shaft 21 extends through the through hole 111 of the upper substrate 11 and is connected to the servo motor 14, and can be driven to rotate by the rotational power source 14. The lower end of the rotating shaft 21 extends through one of the through holes 121 of the support substrate 12 and is connected to a blank holder 22. The rotating shaft 21 connects at least two rotating cams 23 between the upper substrate 11 and the support substrate 12. A side-winding mechanism 3 includes at least two sets of side-winding devices 31. Each set of side-winding devices 31 includes a connecting rod 32. The upper end of the connecting rod 32 is connected to a driven wheel 33, which can be pushed by the rotating cam 23. The lower end of the connecting rod 32 passes through the through hole 121 of the support base plate 12 and is connected to the side-winding wheel 34. The side-winding wheel 34 has a winding and forming part 341. A lifting mechanism 4 is attached above the lower base plate 13. The lifting mechanism 4 includes a fixed base 41, a lifting power source 42, and a support plate 43. The fixed base 41 is composed of a lower layer plate 411, a plurality of support rods 412, and an upper layer plate 413 with a through hole 414. The lower layer plate 411 is fixed on the lower base plate 13, and the lower layer plate 411 and the upper layer plate 413 are combined into a fixed base 41 by the plurality of support rods 412. The lifting power source 42 is located between the lower plate 411 and the upper plate 413. The lifting power source 42 is connected to a lifting rod 44. The lifting rod 44 passes through the perforation 414 of the upper plate 413 and is connected to a support plate 43. The support plate 43 can be used to place the double-layer container 5.

[0023] Please see below. Figure 3 and cooperate Figure 2 As shown, device A is mainly installed on the composite material double-layer container forming equipment 6. The forming equipment 6 uses a conveying mechanism to transport two double-layer containers 5 that are nested together but not rolled and fixed to the edge roll forming device A for rolling operation. In this invention, the double-layer container 5 is a container composed of a plastic inner layer 51 and a paper outer layer 52. The forming equipment 6 includes at least a first conveying turntable 61 and a second conveying turntable 62. A heater 611 is provided at the upper end of the first conveying turntable 61, which can heat and soften the upper edge of the plastic inner layer 51 in the double-layer container 5. The second conveying turntable 62 can receive the double-layer container 5 with the softened plastic inner layer 51 on the first conveying turntable 61 and transport the double-layer container 5 to the working space of the edge roll forming device A.

[0024] Please see again Figure 6 As shown, when the double-layer container 5 is moved from the second conveying turntable 62 to above the bearing plate 43 of the lifting mechanism 4, the lifting power source 42 of the lifting mechanism 4 drives the lifting rod 44 to rise, and lifts the bearing plate 43 and the double-layer container 5 to the bottom edge of the preform seat 22, and causes the softened upper edge of the plastic inner layer 51 to be pressed outward by the bottom edge of the preform seat 22. In a further embodiment of the present invention, the lifting rod 44 has a buffer spring 45 located between the bearing plate 43 and the upper plate 413 of the fixed seat 41. The buffer spring 45 can provide buffer elasticity when the double-layer container 5 contacts and is pressed against the bottom edge of the preform seat 22 when the lifting rod 44 is lifted, and can also make the double-layer container 5 rotate by the preform seat 22.

[0025] Please refer to the following: Figure 4 , Figure 5 , Figure 7 As shown, when the double-layer container 5 has not yet been lifted to contact the preform seat 22, the upper rotating shaft 21 rotates and uses the arc part of the rotating cam 23 to push the driven wheel 33, which in turn uses the connecting rod 32 to drive the side rolling wheel 34 away from the preform seat 22. At this time, the double-layer container 5 has enough space to be lifted to the bottom edge of the preform seat 22. When the protrusion of the rotating cam 23 pushes the driven wheel 33, the side rolling wheel 34 will approach the preform seat 22 and the rolling point of the double-layer container 5. At this time, the rolling forming part 341 of the side rolling wheel 34 abuts against the outwardly expanded part of the plastic inner layer 51 and wraps the rolled edge of the paper outer layer 52. Then, the double-layer container 5 is driven to rotate to perform the side rolling operation, so that the plastic inner layer 51 and the paper outer layer 52 are fixed together.

[0026] The present invention has the following advantages:

[0027] 1. The rotational pressing method makes the double-layer container edges smoother and more even, and the top edge of the plastic inner layer is closer to the body of the paper outer layer, resulting in a better covering effect and preventing scratches to users.

[0028] 2. The double-layer container will not stick to the blank holder or side roll roller, thus not affecting the production speed.

[0029] 3. The edge rolling rollers can be replaced according to different edge rolling sizes, and the edge rolling device can be designed in multiple sets to speed up the forming process.

[0030] The above description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. Any simple equivalent changes and modifications made based on the content of the present invention shall still fall within the scope of the present invention patent.

Claims

1. A side-rolling forming device for a composite material double-layer container, which is installed on a composite material double-layer container forming equipment, characterized in that, The device includes: A machine platform, which is connected from top to bottom to an upper base plate, a support base plate and a lower base plate, and a rotational power source is provided above the upper base plate. A pressing mechanism includes a rotating shaft, the upper end of which extends through the upper substrate and is connected to the rotational power source, the lower end of which extends through the support substrate and is connected to a blank head seat, and at least two rotating cams are connected between the upper substrate and the support substrate. A side-winding mechanism includes at least two sets of side-winders, each set of side-winders including a linkage rod, the upper end of which is connected to a driven wheel, the driven wheel being driven by the rotating cam, and the lower end of which extends through the support base plate and is connected to a side-winding wheel; wherein the side-winding wheel has a winding forming section. A lifting mechanism is provided above a lower substrate. The lifting mechanism includes a fixed base, a lifting power source, and a support plate. The lifting power source is located on the fixed base and is connected to a lifting rod. The upper end of the lifting rod is connected to the support plate, which can accommodate double-layer containers.

2. The edge-rolling forming device for a composite material double-layer container as described in claim 1, characterized in that: The composite material double-layer container forming equipment includes at least a first conveying turntable and a second conveying turntable, and the first conveying turntable is equipped with a heater.

3. The edge-rolling forming device for a composite material double-layer container as described in claim 2, characterized in that: The edge rolling forming device is mounted on the second conveyor turntable.

4. The edge-rolling forming device for a composite material double-layer container as described in claim 1, characterized in that: The composite material double-layer container consists of a paper outer layer and a plastic inner layer.

5. The edge-rolling forming apparatus for a composite material double-layer container as described in any one of claims 2 or 4, characterized in that: The heater can heat and soften the upper edge of the plastic inner layer.

6. The edge-rolling forming device for a composite material double-layer container as described in claim 1, characterized in that: The lifting power source is a pneumatic cylinder, a hydraulic cylinder, or a servo motor.

7. The edge-rolling forming device for a composite material double-layer container as described in claim 1, characterized in that: The mounting base is composed of a lower plate, a plurality of support rods and an upper plate with perforations.

8. The edge-rolling forming apparatus for a composite material double-layer container as described in any one of claims 6 or 7, characterized in that: The lifting power source is located on the lower plate. The lifting rod passes through the perforation of the upper plate and is connected to the support plate. The lifting rod is fitted with a buffer spring, which is located above the upper plate and between the support plate.

9. The edge-rolling forming device for a composite material double-layer container as described in claim 1, characterized in that: The rotational power source is a servo motor.

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