CN214356897U

CN214356897U - Plastic foaming net cover packaging mechanism

Info

Publication number: CN214356897U
Application number: CN202120108204.2U
Authority: CN
Inventors: 陈健; 陈璞
Original assignee: Chengdu Xinxiang Technology Co ltd
Current assignee: Chengdu Xinxiang Technology Co ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2021-10-08
Anticipated expiration: 2031-01-15

Abstract

The embodiment of the invention discloses a plastic foaming net sleeve packaging mechanism, wherein a first supporting transmission rod component and a second supporting transmission rod component are arranged on a supporting frame in a mode of being driven by a first driving device and moving in the opposite direction or the back direction along an X axis; the third supporting transmission rod assembly and the fourth supporting transmission rod assembly are driven by the first driving device to be arranged on the supporting frame in a mode of moving in the opposite direction or the back direction along the Y axis; the first suspension transmission core is arranged between the first support transmission rod assembly and the fourth support transmission rod assembly; the cutting mechanism is movably arranged on the support frame and positioned above the plastic foaming net sleeve conveying mechanism, and is connected with a third driving device through a third transmission mechanism. The plastic foaming net cover packaging mechanism provided by the embodiment of the invention can be suitable for plastic foaming net covers of all sizes on the market, and only the corresponding suspension transmission cores need to be replaced; can pack various articles without being influenced by the shape of the articles.

Description

Plastic foaming net cover packaging mechanism

Technical Field

The invention relates to the technical field of packaging equipment, in particular to a plastic foaming net sleeve packaging mechanism.

Background

The plastic foaming net sleeve in the current market is mainly a polyethylene foaming cotton net sleeve (also called as pearl cotton net sleeve), the polyethylene foaming cotton is a non-crosslinked closed pore structure, also called as EPE pearl cotton, and is a novel environment-friendly packaging material. Polyethylene foam cotton net cover has been widely used in the anti-collision protection package of various products such as bottled wine and the like, which are containers of various fruits, vegetables, flowers and glass products, the current packaging mode is manual packaging, and the specific operation method is as follows: firstly, the polyethylene foam cotton net is cut into unit nets with a certain length and a certain specification when being produced, the unit nets with proper length are selected according to the size of a packaged object when being packaged, and the unit nets are sleeved at the required positions on the surface of the packaged object through manual operation. This conventional approach has the following disadvantages: the packaging speed is not high; a large amount of manpower is consumed; the work content of the employees is extremely boring, and it is more and more difficult to recruit the related personnel; the packaging material is very messy after being cut, and is inconvenient to transport and manage; the packaging precision cannot be guaranteed.

If the packaging speed is to be improved and the packaging precision requirement is met, automatic packaging equipment of a plastic foaming net cover is needed. The automatic packaging equipment has extremely high packaging speed, so that continuous supply of the packaging materials is required, the packaging materials cannot be cut in advance to realize the continuous supply of the packaging materials, and meanwhile, the plastic foaming net sleeve packaging materials need to be flattened and wound on a cylindrical disc so as to achieve the purpose of saving space.

Because the plastic foaming net cover is flattened and wound on the cylindrical disc, and a packaging inlet is continuously arranged only on the end face, the problem of how to open the plastic foaming net cover during packaging needs to be solved.

Disclosure of Invention

In view of this, the present invention provides a plastic foaming net packaging mechanism.

The plastic foaming net sleeve packaging mechanism comprises a support frame, a plastic foaming net sleeve conveying mechanism and a cutting mechanism;

the plastic foaming net sleeve conveying mechanism comprises a first supporting transmission rod assembly, a second supporting transmission rod assembly, a third supporting transmission rod assembly, a fourth supporting transmission rod assembly and a first suspension transmission core; the first supporting transmission rod assembly and the second supporting transmission rod assembly are arranged in parallel relatively and are arranged on the supporting frame in a mode of moving towards or away from each other along the X axis; the third supporting transmission rod assembly and the fourth supporting transmission rod assembly are arranged below the first supporting transmission rod assembly and the second supporting transmission rod assembly in a relatively parallel mode and are arranged on the supporting frame in a mode of moving towards or away from each other along the Y axis; the first suspension transmission core is arranged among the first support transmission rod assembly, the second support transmission rod assembly, the third support transmission rod assembly and the fourth support transmission rod assembly; the first support transmission rod assembly and the second support transmission rod assembly are connected with a first driving device through a first transmission mechanism; the third supporting transmission rod assembly and the fourth supporting transmission rod assembly are connected with a second driving device through a second transmission mechanism;

the cutting mechanism is movably arranged on the support frame and positioned above the plastic foaming net sleeve conveying mechanism, and is connected with a third driving device through a third transmission mechanism.

According to a preferred embodiment of the present invention, the first suspended drive core includes a core body and an expansion member; the core body is of a cylindrical structure; the expansion piece is of a truncated cone-shaped structure; and the diameter of the core body is equal to the diameter of the small section end of the expansion piece; the small-section end of the expansion piece in the cone frustum-shaped structure is arranged at the top end of the core body in the cylindrical structure; a tip part is arranged at the bottom end of the core body; the tip part is in a conical structure, a truncated cone structure, a spherical crown structure or a wedge-shaped structure.

According to a preferred embodiment of the present invention, first clamping grooves are respectively formed at corresponding positions on the left and right sides of the core body; second clamping grooves are respectively formed in the corresponding positions of the front side and the rear side of the core body; the cross sections of the first clamping groove and the second clamping groove are smooth curves which are close to circular arcs and are related to the size of the support transmission rod and the thickness of the plastic foaming net sleeve, so that the plastic foaming net sleeve is conveyed more smoothly; the distance between the support transmission rod and the first clamping groove and the distance between the support transmission rod and the second clamping groove can be synchronously adjusted, so that different transmission efficiencies are realized, and different packaging effects are achieved; the first clamping groove and the second clamping groove are in a two-side in-line type and are matched with two parallel support transmission rods for transmission; or the first clamping groove and the second clamping groove are annular and are matched with two groups of V-shaped row-oriented support transmission rods for transmission.

According to a preferred embodiment of the invention, a plurality of rolling members are embedded on the surface of the core body and/or the expansion member, and the arrangement of the rolling members can greatly improve the conveying smoothness of the plastic foaming net sleeve and simultaneously ensure that the plastic foaming net sleeve is less prone to damage in the conveying process; alternatively, the surfaces of the core, the rolling members and/or the expansion members may be surface treated to reduce the coefficient of friction with the foamed plastic web.

According to a preferred embodiment of the invention, a receiving groove is provided at the large-section end of the expansion element.

According to a preferred embodiment of the present invention, the support frame comprises a first support, a second support, a third support and a fourth support; the first support and the second support are oppositely arranged; both ends of the third supporting piece and the fourth supporting piece are respectively connected to the first supporting piece and the second supporting piece; a first sliding rod and a second sliding rod are respectively arranged between two ends of the first supporting piece and the second supporting piece; and a third sliding rod and a fourth sliding rod are respectively arranged between two ends of the third supporting piece and the fourth supporting piece.

According to a preferred embodiment of the present invention, the first support drive rod assembly includes a first mount, a first support drive rod, and a first drive motor; two ends of the first mounting piece are respectively connected to the supporting frame in a sliding manner; the first support transmission rod is rotatably arranged on the first mounting part; the first driving motor is arranged on the first mounting piece and is in transmission connection with the first supporting transmission rod;

the second support transmission rod assembly comprises a second mounting part, a second support transmission rod and a second driving motor; two ends of the second mounting piece are respectively connected to the supporting frame in a sliding manner; the second support transmission rod is rotatably arranged on the second mounting part; the second driving motor is arranged on the second mounting part and is in transmission connection with the second support transmission rod;

the third support transmission rod assembly comprises a third mounting part, a third support transmission rod and a third driving motor; two ends of the third mounting piece are respectively connected to the supporting frame in a sliding manner; the third support transmission rod is rotatably arranged on the third mounting part; the third driving motor is arranged on the third mounting part and is in transmission connection with the third support transmission rod;

the fourth support drive link assembly includes a fourth mount, a fourth support drive link, and a fourth drive motor; two ends of the fourth mounting piece are respectively connected to the supporting frame in a sliding manner; the fourth supporting transmission rod is rotatably arranged on the fourth mounting part; the fourth drive motor is disposed on the fourth mount and is drivingly connected to the fourth support drive link.

According to a preferred embodiment of the present invention, a surface structure for increasing the friction coefficient is provided on the surface of the first, second, third and fourth support-transmission rods.

According to a preferred embodiment of the present invention, the cutting mechanism is a heating wire cutting mechanism, a shear cutter cutting mechanism, a rotary cutter cutting mechanism, or a laser cutting mechanism.

According to a preferred embodiment of the present invention, the first transmission mechanism includes a first transmission rod, a first pulley and a second pulley provided on the support frame; the first belt wheel is connected with one end of the first transmission rod through a first transmission belt; the second belt wheel is connected with the other end of the first transmission rod through a second transmission belt; the first transmission rod is connected with the first driving device through a third transmission belt;

two ends of the first supporting transmission rod assembly are respectively connected to the upper sections of the first transmission belt and the second transmission belt; two ends of the second supporting transmission rod component are respectively connected to the lower sections of the first transmission belt and the second transmission belt;

the second transmission mechanism comprises a fourth belt wheel, a fifth belt wheel and a sixth belt wheel which are arranged on the supporting frame; the fourth belt wheel is connected with the fifth belt wheel through a fourth transmission belt; the sixth belt wheel and the fifth belt wheel are coaxially arranged, and the sixth belt wheel is connected with the second driving device through a fifth transmission belt;

the two ends of the third supporting transmission rod assembly and the fourth supporting transmission rod assembly are connected to the first sliding rod and the second sliding rod on the supporting frame in a sliding mode respectively, one end of the third supporting transmission rod assembly is connected to the upper section of the fourth driving belt, and one end of the fourth supporting transmission rod assembly is connected to the lower section of the fourth driving belt.

Compared with the prior art, the plastic foaming net cover packaging mechanism provided by the embodiment of the invention has the following beneficial effects:

the plastic foaming net cover packaging mechanism provided by the embodiment of the invention can be suitable for plastic foaming net covers of all sizes on the market, and only the corresponding suspension transmission cores need to be replaced; various articles can be packaged without being influenced by the shape of the articles; stable and efficient, and low economic cost.

Additional features of the invention will be set forth in part in the description which follows. Additional features of some aspects of the invention will become apparent to those of ordinary skill in the art upon examination of the following description and accompanying drawings or may be learned by the manufacture or operation of the embodiments. The features of the present disclosure may be realized and attained by practice or use of various methods, instrumentalities and combinations of the specific embodiments described below.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention. Like reference symbols in the various drawings indicate like elements. Wherein the content of the first and second substances,

FIG. 1 is a schematic diagram of a plastic foam web packaging mechanism according to some embodiments of the present invention;

FIGS. 2 and 3 are schematic views showing the open state of the conveying mechanism of the expanded plastic web in the expanded plastic web packaging machine according to some embodiments of the present invention;

FIGS. 4, 5, and 6 are schematic views of the structure of the floating transmission core in the plastic foam net cover packaging mechanism according to some embodiments of the present invention;

FIGS. 7, 8 and 9 are schematic structural views of a floating transmission core in a plastic foam net cover packaging mechanism according to other embodiments of the present invention;

fig. 10 to 18 are schematic views showing a process of a plastic foam web conveying mechanism in a plastic foam web packaging machine according to some embodiments of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that if the terms "first", "second", etc. are used in the description and claims of the present invention and in the accompanying drawings, they are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the invention herein. Furthermore, if the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present invention, if the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. are referred to, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

In addition, in the present invention, the terms "mounted," "disposed," "provided," "connected," "sleeved," and the like should be construed broadly if they are referred to. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The embodiment of the invention discloses a plastic foaming net sleeve packaging mechanism.

As shown in fig. 1, the plastic foam net packaging mechanism may include a support frame, a plastic foam net conveying mechanism and a cutting mechanism.

As shown in fig. 1 to 3, the supporting frame includes a first supporting member 110, a second supporting member 120, a third supporting member 130, and a fourth supporting member 140. The first support 110 and the second support 120 are oppositely disposed. Both ends of the third and

fourth supporters

130 and 140 are respectively connected to the first and

second supporters

110 and 120. Between both ends of the first and

second supports

110 and 120 are disposed a first and

second slide bars

150 and 160, respectively. Between both ends of the third and

fourth supports

130 and 140 are disposed a third and

fourth slide bar

170 and 180, respectively.

As shown in fig. 1 to 3, the plastic foam net conveying mechanism includes a first support driving rod assembly 210, a second support driving rod assembly 220, a third support driving rod assembly 230, a fourth support driving rod assembly 240, and a first floating driving core 250.

The first support drive rod assembly 210 and the second support drive rod assembly 220 are arranged in relatively parallel relation and are disposed on the support frame in a manner that they can move toward or away from each other along the X-axis. The third and fourth support

drive rod assemblies

230 and 240 are disposed in parallel with respect to each other below the first and second support

drive rod assemblies

210 and 220 and are disposed on the support frame in a manner movable toward and away from each other along the Y-axis.

Illustratively, first support drive rod assembly 210 includes a first mount 211, a first support drive rod 212, and a first drive motor 213. The first support transmission shaft 212 is rotatably provided on the first mounting part 211. A first drive motor 213 is disposed on the first mounting member 211 and is drivingly connected to the first support and drive link 212. The two ends of the first mounting part 211 are slidably connected to the supporting frame respectively. Specifically, two ends of the first mounting part 211 are slidably connected to the third slide bar 170 and the fourth slide bar 180 on the supporting frame, respectively.

The second support driving lever assembly 220 includes a second mounting part 221, a second support driving lever 222, and a second driving motor 223. The second support transmission bar 222 is rotatably provided on the second mounting part 221. A second drive motor 223 is disposed on the second mounting member 221 and is drivingly connected to the second support and drive link 222. The second mounting member 221 has two ends slidably connected to the supporting frames, respectively. Specifically, two ends of the second mounting part 221 are slidably connected to the third slide bar 170 and the fourth slide bar 180 on the supporting frame, respectively.

Also, the first support driving lever assembly 210 and the second support driving lever assembly 220 are connected to the first driving device through a first transmission mechanism.

Illustratively, the first transmission mechanism includes a first transmission rod 310, a first pulley 320 and a second pulley 330 disposed on the support frame. The first pulley 320 is connected to one end of the first driving lever 310 by a first driving belt 340. The second pulley 330 is connected to the other end of the first driving lever 310 via a second belt 350. The first driving lever 310 is connected to the first driving means through a third driving belt. Preferably, the first driving means is a driving motor.

Both ends of the first supporting driving lever assembly 210 are connected to the upper sections of the first and second driving

belts

340 and 350, respectively. The second supporting driving lever assembly 220 has both ends connected to the lower sections of the first and second driving

belts

340 and 350, respectively. So that the first support drive rod assembly 210 and the second support drive rod assembly 220 can move toward or away from each other along the X-axis.

The third prop and drive link assembly 230 includes a third mount 231, a third prop and drive link 232, and a third drive motor 233. The third support driving lever 232 is rotatably provided at the third mounting part 231. A third driving motor 233 is disposed on the third mounting member 231 and is drivingly connected to the third support driving rod 232. Both ends of the third mounting member 231 are slidably coupled to the support frames, respectively. Specifically, the two ends of the third mounting part 231 are slidably connected to the first slide bar 150 and the second slide bar 160 on the supporting frame, respectively.

The fourth support transmission lever assembly 240 includes a fourth mounting part 241, a fourth support transmission lever 242, and a fourth driving motor 243. The fourth supporting transmission lever 242 is rotatably provided on the fourth mounting part 241. A fourth driving motor 243 is disposed on the fourth mounting member 241 and is drivingly connected to the fourth supporting and driving rod 242. Both ends of the fourth mounting part 241 are slidably connected to the supporting frame respectively. Specifically, the fourth mounting part 241 is slidably connected to the first slide bar 150 and the second slide bar 160 on the supporting frame at two ends, respectively.

And, the third supporting driving rod assembly 230 and the fourth supporting driving rod assembly 240 are connected with the second driving device 600 through the second driving mechanism.

Illustratively, the second transmission mechanism includes a fourth pulley 510, a fifth pulley 520, and a sixth pulley 530 disposed on the support frame. The fourth pulley 510 and the fifth pulley 520 are connected by a fourth belt 540. The sixth pulley 530 is disposed coaxially with the fifth pulley 520, and the sixth pulley 530 is connected to the second driving unit 600 via a fifth belt 550. Preferably, the second driving device 600 is a driving motor.

Both ends of the third support drive rod assembly 230 and the fourth support drive rod assembly 240 are slidably connected to the first slide bar 150 and the second slide bar 160, respectively, on the support bracket, and one end of the third support drive rod assembly 230 is connected to an upper section of the fourth belt 540 and one end of the fourth support drive rod assembly 240 is connected to a lower section of the fourth belt 540. So that the third support drive link assembly 230 and the fourth support drive link assembly 240 can move toward or away from each other along the Y-axis.

Wherein the first floating drive core 250 is disposed between the first support drive rod assembly 210, the second support drive rod assembly 220, the third support drive rod assembly 230, and the fourth support drive rod assembly 240.

Illustratively, as shown in fig. 4, 5, 6, the floating drive core 250 may include a core body 2510 and an expansion element 2520.

The core 2510 has a cylindrical structure. Illustratively, the core 2510 may include a cylindrical portion 2511 and a tip portion 2512 formed at a bottom end of the cylindrical portion 2511. Preferably, the tip 2512 may have a conical configuration, a truncated conical configuration (as shown in fig. 4-6), a spherical crown configuration, or a wedge configuration (as shown in fig. 7-9).

Wherein the expansion element 2520 has a truncated cone-shaped structure. The diameter of core 2510 is the same as the diameter of the small cross-sectional end of expansion element 2520. In the attached state, the small-section end of the expansion element 2520 having a truncated cone-like structure is provided at the tip end of the core 2510 having a cylindrical structure. Specifically, the small cross-section end of the expansion element 2520 is disposed at the tip of the cylindrical portion 2511 such that the expansion element 2520 forms a gradually increasing diameter boss at the tip of the core 2510.

Therefore, the suspension transmission core 250 forms a structure with a front tip, a middle straight part and a rear cone, and the flattened plastic foaming net sleeve can be conveniently expanded to a size slightly larger than the packaged object in the conveying process, so that the packaged object can be quickly and conveniently packaged.

Illustratively, the core 2510 and the expansion element 2520 may be secured by a screw connection. In some embodiments, the core 2510 and the expansion element 2520 may also be of unitary construction. For example, core 2510 and expansion element 2520 may be formed by integral molding.

Preferably, the core 2510 and the expansion element 2520 can be made of plastic or other materials that meet the requirements of frictional properties.

By providing the tip 2512 at the bottom of the column 2511, the core 2510 can be conveniently inserted into the opening of the plastic foam net and the plastic foam net can be loaded and transported conveniently, and the tip 2512 (e.g., wedge-shaped) is more favorable for forming the plastic foam net because the coiled plastic foam net is flat at the output end. In some embodiments, a hook may also be attached centrally at the trailing end of the floating drive core (the large cross-sectional end of the expansion member 2520) to facilitate loading of the floating drive core.

By providing the small-section end of the expansion element 2520 having a truncated cone-like structure at the tip end of the core 2510 having a cylindrical structure, the expansion element 2520 forms a boss having a gradually increasing diameter at the tip end of the core 2510. On one hand, the expansion element 2520 in the truncated cone-shaped structure can support the whole suspension transmission core; on the other hand, the expansion element 2520 in the truncated cone structure also facilitates the transportation of the plastic foam net, and the rear end conical structure makes the final output shape of the plastic foam net be an enlarged circle. In some embodiments, a section of cylinder may be disposed at the large section end of the expansion element 2520 in a truncated cone structure, so that the tapered end of the rear end is a cylinder, which may make the final output plastic foaming net into a vertically upward circular tube shape for the convenience of packaging of subsequent products.

Further, in some embodiments, a receiving groove 2521 is provided at the large-section end of the expansion element 2520, as shown in fig. 4. Because the shape of some packaged objects (such as apples, pears and the like in fruits) is thick in the middle and thin at two ends, when the plastic foaming net sleeve is conveyed upwards, the lower part of the objects can be touched firstly, and the lower part is smaller, so that the plastic foaming net sleeve is blocked by the middle part with larger objects and cannot be conveyed. By arranging the holding grooves 2521 at the large-section ends of the expansion pieces 2520, the articles are placed in the holding grooves 2521 during packaging, so that the problem that the plastic foaming net can not be conveyed during packaging of the packaged objects (such as apples, pears and the like in fruits) is solved.

Preferably, the depth of the receiving groove 2521 may be set to be higher than the end surface of the end (large cross-sectional end) of the floating drive core by a distance of less than 10mm at the thickest middle position of the article after the article is placed. So as to achieve better packaging effect.

Further, in some embodiments, a cavity 2513 is provided in the core 2510, as shown in fig. 7-9. Illustratively, the cavity 2513 may be opened at both ends or at a central position of the core 2510 to reduce weight.

Further, in some embodiments, a weight is provided in the cavity 2513 to achieve a reasonable weight for the entire suspended drive core, thereby achieving stable drive.

Because the plastic foam net cover 40 is clamped between the first support transmission rod 212, the second support transmission rod 222, the third support transmission rod 232, the fourth support transmission rod 242 and the suspension transmission core 250 for transmission, the direct power source of the plastic foam net cover is mainly the friction force between the support transmission rod and the plastic foam net cover 40, the friction force depends on the pressure between the support transmission rod and the plastic foam net cover, the pressure mainly comprises the clamping force of the support transmission rod, the pressure of the support position of the suspension transmission core, the force for the plastic foam net cover to recover from a compressed state and the like, wherein the pressure at the position of the conical surface (the conical surface of the expansion piece 2520) of the suspension transmission core can greatly change along with the displacement of the suspension transmission core in the vertical direction, particularly when enough displacement is generated to separate from the plastic foam net cover, the pressure applied to the plastic foam net cover disappears, so that the transmission friction force of the plastic foam net cover is greatly reduced, the situation of delivery failure or poor delivery will occur. In order to make the transportation of the plastic foaming net more stable, the suspension transmission core can not have large displacement in the vertical direction.

In addition, in the conveying process of the plastic foaming net sleeve, the suspension transmission core 250 is continuously subjected to upward friction traction force, the problem can be solved by increasing the weight of the suspension transmission core 250, but the friction force at the supporting surface of the suspension transmission core 250 is greatly increased due to the overlarge weight of the suspension transmission core 250, so that the conveying of the plastic foaming net sleeve becomes difficult. To solve this problem, first clamping grooves 2514 may be provided at corresponding positions on the left and right sides of the core 2510, respectively. Second holding grooves 2515 are provided at corresponding positions on the front and rear sides of the core 2510, respectively. The support transmission rod can be clamped into the suspension transmission core, so that the suspension transmission core is limited by the position of the support transmission rod, and finally the suspension transmission core does not have large displacement in the vertical direction, thereby avoiding accidents such as collision and interference between the suspension transmission core and a cutting mechanism in the process of falling back in the vertical direction, and ensuring the safety of the plastic foaming net sleeve during cutting.

Therefore, in some embodiments, as shown in fig. 4 to 9, first clamping grooves 2514 are respectively provided at corresponding positions on the left and right sides of the core 2510. Second holding grooves 2515 are provided at corresponding positions on the front and rear sides of the core 2510, respectively.

In the installed state, the first support transmission rod 212 and the second support transmission rod 222 are symmetrically disposed in the first clamping grooves 2514 on the left and right sides of the core 2510 in the floating transmission core 250; the third prop-drive link 232 and the fourth prop-drive link 242 are symmetrically disposed in the second holding grooves 2515 on the front and rear sides of the core 2510 in the floating drive core 250, as shown in fig. 11 and 12. So that the first support transmission rod 212, the second support transmission rod 222, the third support transmission rod 232 and the fourth support transmission rod 242 can form a transverse double-row double-parallel support transmission rod structure, and the suspension transmission core 250 is always in a central position. In some embodiments, the floating drive core 250 may be supported by other means, such as longitudinal support, multiple rows and rods.

Preferably, the cross sections of the first clamping groove and the second clamping groove are smooth curves close to circular arcs related to the thicknesses of the first support transmission rod, the second support transmission rod, the third support transmission rod, the fourth support transmission rod and the plastic foaming net sleeve, so that the plastic foaming net sleeve is conveyed more smoothly. And the distance between the supporting transmission rod and the first clamping groove and the distance between the supporting transmission rod and the second clamping groove can be synchronously adjusted, so that different transmission efficiencies are realized, and different packaging effects are achieved. In addition, the first clamping groove and the second clamping groove are in a two-side in-line type and are matched with two parallel support transmission rods for transmission. Or the first clamping groove and the second clamping groove are circular and matched with two groups of V-shaped row-direction supporting transmission rods for transmission. Wherein the two-sided inline configuration is the simplest. The clamping grooves can be more than two groups, and the two groups are the simplest structure capable of stably clamping the arc transmission core and performing transmission.

Further, in some embodiments, to reduce the friction between the plastic foam netting 40 and the floating drive core 250, a plurality of rolling elements 2516 may be embedded on the surface of the core body 2510 and/or the expansion elements 2520; such as unpowered rollers and unpowered balls, etc., as shown in fig. 7-9. The arrangement of the rolling part can greatly improve the conveying smoothness of the plastic foaming net sleeve, and meanwhile, the plastic foaming net sleeve is not easy to damage in the conveying process. Alternatively, the surfaces of the core, rolling elements and/or expansion elements may be surface treated (e.g., grit blasted) to reduce the coefficient of friction with the foamed plastic web.

And, since the first, second, third and fourth supporting-and-driving

levers

212, 222, 232 and 242 can be opened in the circumferential direction, the plastic foam net can be conveniently installed. The distances between the first, second, third and fourth prop-and-

drive rods

212, 222, 232 and 242 and the floating drive core 250 may be adjusted during operation to vary the magnitude of the frictional drive force to achieve a stable drive.

In addition, the friction coefficient between the surfaces of the first support transmission rod 212, the second support transmission rod 222, the third support transmission rod 232 and the fourth support transmission rod 242 and the plastic foam net cover 40 directly influences the magnitude of the conveying friction, so that the conveying speed is faster and the efficiency is improved, the friction coefficient between the surfaces of the first support transmission rod 212, the second support transmission rod 222, the third support transmission rod 232 and the fourth support transmission rod 242 and the plastic foam net cover 40 is higher, and the surface of the support transmission rod can be specially processed to realize the purpose. For example, the surfaces of the first, second, third and fourth support and

transmission rods

212, 222, 232, 242 may be provided with surface structures (e.g., friction increasing teeth, surface coatings, or coatings) for increasing the coefficient of friction.

Wherein the cutting mechanism is a heating wire cutting mechanism, a shearing cutter cutting mechanism, a rotary cutter cutting mechanism or a laser cutting mechanism.

In this embodiment, the cutting mechanism is a heating wire cutting mechanism. The electric heating wire cutting mechanism is movably arranged on the support frame and positioned above the plastic foaming net sleeve conveying mechanism, and the cutting mechanism is connected with a third driving device through a third transmission mechanism.

As shown in fig. 1, the heating wire cutting mechanism includes a heating wire 710, a first slider 720, and a second slider 730.

The first slider 720 and the second slider 730 are slidably disposed on the support brackets, respectively. Moreover, the first sliding member 720 is connected to a driving motor through a first belt transmission mechanism 740; the second slider 730 is connected to a driving motor through a second belt transmission mechanism 750. The heating wire 710 has one end connected to the first slider 720 and the other end connected to the second slider 730. So that the first and

second sliders

720 and 730 can drive the heating wire 710 to move under the driving of the driving motor.

The working principle and the process of the plastic foaming net cover packaging mechanism of the embodiment of the invention are as follows:

starting the first driving device to move the first support driving rod assembly 210 and the second support driving rod assembly 220 back to back through the first transmission mechanism, and simultaneously starting the second driving device to move the third support driving rod assembly 230 and the fourth support driving rod assembly 240 back to back through the second transmission mechanism, so as to open the first support driving rod 212, the second support driving rod 222, the third support driving rod 232 and the fourth support driving rod 242 around the levitation transmission core 250, and take out the levitation transmission core 250;

leading out the plastic foaming net cover 40 from the net cover reel, penetrating through a working area of the suspension transmission core 250, and then sleeving the plastic foaming net cover 40 into the suspension transmission core 250 from the opening until the end face of the plastic foaming net cover 40 is flush with the end face of the conical end (large-section end) of the suspension transmission core 250;

then, the floating transmission core 250 is put back to the working position, the first driving device is started, the first supporting transmission rod assembly 210 and the second supporting transmission rod assembly 220 move oppositely through the first transmission mechanism, meanwhile, the second driving device is started, the third supporting transmission rod assembly 230 and the fourth supporting transmission rod assembly 240 move oppositely through the second transmission mechanism, and the first supporting transmission rod 212, the second supporting transmission rod 222, the third supporting transmission rod 232 and the fourth supporting transmission rod 242 clamp the floating transmission core 250 to the required tightness, as shown in fig. 10 to fig. 12;

the object to be packed 50 is adsorbed to the packing height above the floating transmission core 250 by the external adsorption means 60,

the first driving motor 213, the second driving motor 223, the third driving motor 233 and the fourth driving motor 243 respectively drive the first supporting transmission rod 212, the second supporting transmission rod 222, the third supporting transmission rod 232 and the fourth supporting transmission rod 242 to rotate, and the plastic foam net cover 40 is output to the top end (large-section end) of the suspending transmission core 250 through friction transmission, so that the plastic foam net cover 40 covers the surface of the object 50 to be packaged, as shown in fig. 13 to 15;

after the plastic foam net 40 outputs the set length, the first support transmission rod 212, the second support transmission rod 222, the third support transmission rod 232 and the fourth support transmission rod 242 stop rotating, and the cutting mechanism is started to cut the plastic foam net 40 from the top end of the floating transmission core 250, as shown in fig. 16 to 18.

The cut plastic foaming net cover 40 wraps the object to be packaged 50 after elastic recovery. The object to be packed 50 is transferred to an external line via the external adsorption device 60, and a new object to be packed is adsorbed and packed at the same time, thereby realizing a packing cycle.

It should be noted that all of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.

In addition, the above-described embodiments are exemplary, and those skilled in the art, having benefit of this disclosure, will appreciate numerous solutions that are within the scope of the disclosure and that fall within the scope of the invention. It should be understood by those skilled in the art that the present specification and figures are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims

1. A plastic foaming net cover packaging mechanism is characterized by comprising a support frame, a plastic foaming net cover conveying mechanism and a cutting mechanism;

the plastic foaming net sleeve conveying mechanism comprises a first supporting transmission rod assembly (210), a second supporting transmission rod assembly (220), a third supporting transmission rod assembly (230), a fourth supporting transmission rod assembly (240) and a first suspension transmission core (250);

the first supporting transmission rod assembly (210) and the second supporting transmission rod assembly (220) are arranged in parallel relatively and are arranged on the supporting frame in a mode of moving towards or away from each other along the X axis; the third supporting transmission rod assembly (230) and the fourth supporting transmission rod assembly (240) are arranged below the first supporting transmission rod assembly (210) and the second supporting transmission rod assembly (220) in a relatively parallel mode and are arranged on the supporting frame in a mode of moving towards or away from each other along the Y axis; the first floating drive core (250) is disposed between the first support drive rod assembly (210), the second support drive rod assembly (220), the third support drive rod assembly (230), and the fourth support drive rod assembly (240); the first supporting transmission rod assembly (210) and the second supporting transmission rod assembly (220) are connected with a first driving device through a first transmission mechanism; the third supporting transmission rod assembly (230) and the fourth supporting transmission rod assembly (240) are connected with a second driving device through a second transmission mechanism;

2. A plastic foam web packaging mechanism as recited in claim 1, wherein said first floating transmission core (250) includes a core body (2510) and an expansion member (2520);

the core (2510) is of a cylindrical structure; the expansion piece (2520) is of a truncated cone-shaped structure; and, the diameter of the core (2510) is equal to the diameter of the small section end of the expansion element (2520);

the small-section end of the expansion piece (2520) in a truncated cone-shaped structure is arranged at the top end of the core body (2510) in a cylindrical structure; a tip portion (2512) is arranged at the bottom end of the core body (2510);

the tip portion (2512) is in a cone-shaped structure, a truncated cone-shaped structure, a spherical crown-shaped structure or a wedge-shaped structure.

3. The plastic foam net packaging mechanism according to claim 2, wherein a first clamping groove (2514) is respectively provided at corresponding positions on the left and right sides of the core body (2510); second clamping grooves (2515) are respectively arranged at the corresponding positions of the front side and the rear side of the core body (2510);

the cross sections of the first clamping groove (2514) and the second clamping groove (2515) are smooth curves which are close to circular arcs and related to the size of the supporting transmission rod and the thickness of the plastic foaming net sleeve, so that the plastic foaming net sleeve is conveyed more smoothly; the distance between the supporting transmission rod and the first clamping groove (2514) and the distance between the supporting transmission rod and the second clamping groove (2515) can be synchronously adjusted, so that different transmission efficiencies are realized, and different packaging effects are achieved;

the first clamping groove (2514) and the second clamping groove (2515) are in a two-side in-line type and are matched with two parallel supporting transmission rods for transmission; or the first clamping groove (2514) and the second clamping groove (2515) are annular and are matched with two groups of V-shaped parallel support transmission rods for transmission.

4. The plastic foaming net cover packaging mechanism according to claim 2, characterized in that a plurality of rolling members (2516) are embedded on the surfaces of the core body (2510) and/or the expansion member (2520), the arrangement of the rolling members (2516) can greatly improve the smoothness of the transportation of the plastic foaming net cover, and simultaneously, the plastic foaming net cover is less prone to damage in the transportation process; alternatively, the surfaces of the core (2510), the rolling element (2516) and/or the expansion element (2520) are surface treated to reduce the coefficient of friction with the plastics foam sleeve.

5. A plastic foam web packaging mechanism according to claim 2, characterized in that a receiving groove (2521) is provided at the large-section end of said expansion element (2520).

6. The plastic foam web packaging mechanism of claim 1, wherein said support frame comprises a first support (110), a second support (120), a third support (130), and a fourth support (140);

the first support (110) and the second support (120) are oppositely arranged; both ends of the third support (130) and the fourth support (140) are respectively connected to the first support (110) and the second support (120);

and a first slide bar (150) and a second slide bar (160) are respectively disposed between both ends of the first support (110) and the second support (120);

a third sliding bar (170) and a fourth sliding bar (180) are respectively arranged between the two ends of the third support (130) and the fourth support (140).

7. The plastic foam web packaging mechanism of claim 1, wherein said first support drive rod assembly (210) includes a first mounting member (211), a first support drive rod (212), and a first drive motor (213); two ends of the first mounting piece (211) are respectively connected to the supporting frame in a sliding manner; the first supporting transmission rod (212) is rotatably arranged on the first mounting part (211); the first driving motor (213) is arranged on the first mounting part (211) and is in transmission connection with the first supporting transmission rod (212);

the second support driving rod assembly (220) comprises a second mounting part (221), a second support driving rod (222) and a second driving motor (223); two ends of the second mounting part (221) are respectively connected to the supporting frame in a sliding manner; the second supporting transmission rod (222) is rotatably arranged on the second mounting part (221); the second driving motor (223) is arranged on the second mounting part (221) and is in transmission connection with the second support transmission rod (222);

the third support transmission rod assembly (230) comprises a third mounting part (231), a third support transmission rod (232) and a third driving motor (233); two ends of the third mounting part (231) are respectively connected to the supporting frame in a sliding manner; the third supporting transmission rod (232) is rotatably arranged on the third mounting part (231); the third driving motor (233) is arranged on the third mounting part (231) and is in transmission connection with the third support transmission rod (232);

the fourth supporting transmission rod assembly (240) comprises a fourth mounting part (241), a fourth supporting transmission rod (242) and a fourth driving motor (243); two ends of the fourth mounting part (241) are respectively connected to the supporting frame in a sliding manner; the fourth supporting transmission rod (242) is rotatably arranged on the fourth mounting part (241); the fourth driving motor (243) is arranged on the fourth mounting part (241) and is in transmission connection with the fourth supporting transmission rod (242).

8. The plastic foam net packaging mechanism according to claim 7, wherein a surface structure for increasing friction coefficient is provided on the surface of the first support transmission rod (212), the second support transmission rod (222), the third support transmission rod (232) and the fourth support transmission rod (242).

9. The plastic foam net packaging mechanism of claim 1, wherein the cutting mechanism is a heating wire cutting mechanism, a shearing cutter cutting mechanism, a rotary cutter cutting mechanism, or a laser cutting mechanism.

10. The plastic foam web packaging mechanism of claim 1,

the first transmission mechanism comprises a first transmission rod (310), a first belt wheel (320) and a second belt wheel (330) which are arranged on the support frame; the first belt wheel (320) is connected with one end of the first transmission rod (310) through a first transmission belt (340); the second belt wheel (330) is connected with the other end of the first transmission rod (310) through a second transmission belt (350); the first transmission rod (310) is connected with the first driving device through a third transmission belt;

two ends of the first supporting transmission rod assembly (210) are respectively connected to the upper sections of the first transmission belt (340) and the second transmission belt (350); the two ends of the second supporting transmission rod assembly (220) are respectively connected to the lower sections of the first transmission belt (340) and the second transmission belt (350);

the second transmission mechanism comprises a fourth belt wheel (510), a fifth belt wheel (520) and a sixth belt wheel (530) which are arranged on the supporting frame; the fourth belt wheel (510) is connected with the fifth belt wheel (520) through a fourth transmission belt (540); the sixth belt wheel (530) and the fifth belt wheel (520) are coaxially arranged, and the sixth belt wheel (530) is connected with the second driving device through a fifth transmission belt (550);

both ends of the third supporting transmission rod assembly (230) and the fourth supporting transmission rod assembly (240) are respectively connected on the first sliding rod (150) and the second sliding rod (160) of the supporting frame in a sliding way, one end of the third supporting transmission rod assembly (230) is connected to the upper section of the fourth transmission belt (540), and one end of the fourth supporting transmission rod assembly (240) is connected to the lower section of the fourth transmission belt (540).