阅读说明：本技术 一种塑料筒状包装的卷边机构 (Edge curling mechanism for plastic cylindrical package ) 是由 赖新庭 吴少勇 肖越克 于 2019-12-04 设计创作，主要内容包括：本发明公开一种塑料筒状包装的卷边机构,具有由第一电机联动的主动杆,以及环形的曲轴,所述主动杆连接多个旋转工位,各旋转工位均配置有至少一组由上卷边盘与下卷边盘组成的卷边机构,所述上卷边盘与下卷边盘中至少有一个配置有自转机构,所述上卷边盘或下卷边盘通过联动板件与旋转工位形成滑动连接,所述联动板件配置有垂直设置的拉杆,且拉杆顶部设有滚轮,所述滚轮与曲轴联动。本发明针对软塑圆筒状包装的卷边制作,通过增加气压使其具备卷边所需要的刚性,结合公转与自转的方式实现周期性旋转生产模式,可根据实际生产需求,配置适当数量的旋转工位完成圆筒状包装的旋转卷边,节约了人工成本,提高了生产效率。(The invention discloses a curling mechanism for plastic cylindrical packages, which is provided with a driving rod linked by a first motor and an annular crankshaft, wherein the driving rod is connected with a plurality of rotating stations, each rotating station is provided with at least one group of curling mechanisms consisting of an upper curling disc and a lower curling disc, at least one of the upper curling disc and the lower curling disc is provided with an autorotation mechanism, the upper curling disc or the lower curling disc is in sliding connection with the rotating stations through a linkage plate, the linkage plate is provided with a vertically arranged pull rod, the top of the pull rod is provided with a roller, and the roller is linked with the crankshaft. Aiming at the hemming manufacture of the soft plastic cylindrical package, the invention has the rigidity required by hemming by increasing the air pressure, realizes the periodic rotary production mode by combining the revolution and rotation modes, can configure a proper number of rotary stations to finish the rotary hemming of the cylindrical package according to the actual production requirement, saves the labor cost and improves the production efficiency.)

1. The utility model provides a turn-up mechanism of plastics tube-shape packing which characterized in that: the novel electric heating hemming device is provided with a driving rod (1) and an annular crankshaft (8), wherein the driving rod (1) is connected with a plurality of rotating stations (2), each rotating station (2) is provided with at least one group of hemming mechanisms consisting of an upper hemming disc (3) and a lower hemming disc (4), at least one of the upper hemming disc (3) and the lower hemming disc (4) is provided with a self-rotating mechanism, the upper hemming disc (3) or the lower hemming disc (4) is in sliding connection with the rotating stations (2) through a linkage plate (5), the linkage plate (5) is provided with a pull rod (51) which is vertically arranged, the top of the pull rod (51) is provided with a roller (52), the roller (52) is linked with the crankshaft (8), and at least one of the upper hemming disc (3) and the lower hemming disc (4) is provided with a heating device and an inflating device (7).

2. A crimping mechanism for a plastic tubular package according to claim 1, wherein: the upper part of the driving rod (1) is provided with a carbon brush (10) to supply power for rotating circuit components or electric components in each rotating station (2).

3. A curling mechanism of a plastic cylindrical package according to claim 1 or 2, wherein: and sliding grooves (21) are formed in two sides of the rotating station (2), and the linkage plate (5) is matched and linked with the sliding grooves (21) through a sliding block (50).

4. A crimping mechanism for a plastic tubular package according to claim 2, wherein: the rotation mechanism comprises a second motor (6), a linkage gear (61) and a belt or a chain.

Technical Field

The invention belongs to the technical field of packaging production instruments, and particularly relates to a curling mechanism for a plastic cylindrical package.

Background

For soft plastic cylindrical packages, the upper and lower edges need to be curled in the production process to enhance the strength of the cylindrical packages. At present, corresponding curling equipment is available on the market for production, for example, a curling machine disclosed in patent number ZL200520120125.4 needs manual auxiliary production, and a high-efficiency production process cannot be realized.

In addition, the existing curling mechanism is not smooth in the curling process of the soft plastic cylindrical package, the force applied by the curling mechanism is difficult to grasp, and the pressure values applied by the pressing of the upper curling disc and the lower curling disc are affected as long as the materials are slightly deviated or the placing positions are not stable, so that the cylindrical package is deformed, the curling quality is affected, and the yield is reduced.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide an automatic hemming mechanism for cylindrical packages with a simple structure and high productivity.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

the invention relates to a curling mechanism for plastic cylindrical packages, which is provided with a driving rod linked by a first motor and an annular crankshaft, wherein the driving rod is connected with a plurality of rotating stations, each rotating station is provided with at least one group of curling mechanisms consisting of an upper curling disc and a lower curling disc, at least one of the upper curling disc and the lower curling disc is provided with an autorotation mechanism, the upper curling disc or the lower curling disc is in sliding connection with the rotating stations through a linkage plate, the linkage plate is provided with a vertically arranged pull rod, the top of the pull rod is provided with a roller wheel, the roller wheel is linked with the crankshaft, and at least one of the upper curling disc and the lower curling disc is provided with a heating device and an inflating device.

The upper part of the driving rod is provided with the carbon brush to supply power for rotating the circuit components or the electric components in each rotating station.

The two sides of the rotating station are provided with sliding grooves, and the linkage plate is matched and linked with the sliding grooves through the sliding blocks.

The self-rotating mechanism comprises a second motor, a linkage gear, a belt or a chain.

The invention can meet the production requirements of various soft plastic cylindrical packages, does not need to adjust the pressing force of the upper and lower crimping discs, ensures that the cylindrical packages are full and rigid by correctly placing the upper and lower crimping discs and cooperatively applying internal pressure in the crimping process, thus ensuring that the products are not deformed and achieving the required crimping effect. The rotary hemming device can be configured with a proper number of rotary stations to form a circular rotary working process according to actual production requirements, rotary hemming of cylindrical packages is completed, hemming efficiency can be optimized, and labor cost is saved.

Description of the drawings:

FIG. 1 is an exploded view relating to the present invention;

fig. 2 is a schematic view of a rotary station according to the present invention.

The specific implementation mode is as follows:

the invention will be further described with reference to the accompanying drawings.

Referring to fig. 1 and 2, the invention relates to a curling mechanism for plastic cylindrical packages, which comprises a driving rod 1 linked by a first motor, wherein the driving rod 1 can be driven by the first motor through a reduction box to rotate, the driving rod 1 is connected with a plurality of rotating stations 2, each rotating station 2 is provided with at least one group of curling mechanisms consisting of an upper curling disc 3 and a lower curling disc 4, the upper curling disc 3 corresponds to the lower curling disc 4 up and down, each rotating station 2 is preferably provided with two groups of curling mechanisms, the upper curling disc 3 or the lower curling disc 4 is in sliding connection with the rotating stations 2 through a linkage plate 5, the linkage plate 5 is provided with a pull rod 51 vertically arranged, the top of the pull rod 51 is provided with a roller 52 and further comprises an annular crankshaft 8, the crankshaft 8 is in an annular wavy shape and uniformly undulates in the vertical height, the rotating stations 2 are driven by the driving rod 1 to rotate, the roller 52 is always floated and sunk up and down under the guidance of the crankshaft 8 during the rotation process, so that the linkage plate 5 drives the corresponding curling disc 3 to vertically lift under the limitation of the rotation station 2.

The linkage plate 5 should correspond to the crankshaft 8, if the linkage plate 5 is assembled on the upper crimping disc 3, the lower crimping disc 4 is connected with the rotating station 2 through a fixed plate, and the crankshaft 8 should be arranged at the horizontal position of the movable range of the upper crimping disc 3; if the lower crimping disc 4 is equipped with a linkage plate 5, the upper crimping disc 3 is connected with the rotary station 2 via a fixed plate, and the crankshaft 8 should be arranged at the horizontal position of the movable range of the lower crimping disc 4. Of course, the linking plates may be disposed on both the upper and lower crimping plates, and two sets of crankshafts 8 are required to be correspondingly linked with the linking plates of the upper and lower crimping plates, respectively.

The two sides of the rotating station 2 are provided with sliding grooves 21, the linkage plate 5 is matched and linked with the sliding grooves 21 through the sliding blocks 50, when the roller 52 is guided to descend by the crankshaft 8, the pull rod 51 drives the linkage plate 5 to descend, the corresponding curling disc is pressed downwards, and the linkage plate 5 is rightly arranged on the limited lower pipe of the sliding grooves 21 in the process, so that the curling disc can vertically ascend and descend.

At least one of the upper crimping disc 3 and the lower crimping disc 4 is provided with an autorotation mechanism corresponding to one surface needing crimping, if two surfaces of the cylindrical package need to be crimped simultaneously, the autorotation mechanism is arranged on each of the upper crimping disc and the lower crimping disc and comprises a second motor 6, a linkage gear 61 and a belt or a chain, the upper crimping disc 3 or the lower crimping disc 4 is provided with the coaxial linkage gear 61, and the second motor 6 drives the linkage gear 61 to drive the corresponding crimping disc to rotate through the belt or the chain, so that the autorotation of the crimping discs can be completed. In the crimping process, the distance between the upper and lower crimping discs is reduced under the action of the linkage plate, the cylindrical package is pressed downwards, and meanwhile, the crimping is completed by matching with the self-rotation mechanism.

At least one of the upper curling disk 3 and the lower curling disk 4 is provided with a heating device for heating and softening one surface to be curled, the upper curling disk and the lower curling disk can be provided with heating devices, wires of the heating devices and a power supply can pass through from the center to the bottom of the corresponding rotating disk, and specific work of the wires which cannot be realized due to rotation and distortion does not need to be worried about.

Further, since the cylindrical package is made of plastic, usually PVC, it has a certain softness in the non-rolled state and is easily deformed during the rolling process, therefore, the inflator 7 should be disposed on one of the upper rolling plate 3 or the lower rolling plate 4, the inflator 7 may be a vacuum pump or a blower, and during the pressing and rolling process, a certain air pressure needs to be formed in the cylindrical package to make the cylindrical package have a certain rigidity, and the rolling can be completed under the pressing and rolling of the upper and lower rolling plates without deformation. In addition, in order to stabilize the air pressure of the cylindrical package in the curling process, a pressure relief valve can be arranged on the opposite curling disc of the inflating device, so that the pressure relief valve can actively relieve pressure when the internal air pressure is interfered, and the internal pressure of the cylindrical package in the curling process is kept stable.

In order to provide stable power supply for the circuit components or the electrical components in each rotation station 2, the carbon brush 10 should be arranged on the upper portion of the active rod 1 to supply power for the circuit components or the electrical components in each rotation station 2.

It is to be understood that the technical scope of the present invention is not limited to the contents of the specification, and that modifications or changes may be made by those skilled in the art based on the above description, and all such modifications and changes are intended to fall within the scope of the appended claims.