CN112706985A

CN112706985A - Suspension transmission core and conveying mechanism for plastic foaming net sleeve packaging

Info

Publication number: CN112706985A
Application number: CN202110058333.XA
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: 2021-04-27

Abstract

The embodiment of the invention discloses a suspended transmission core and a conveying mechanism for packaging a plastic foaming net sleeve. The suspension transmission core for the plastic foaming net cover packaging comprises a core body and an expansion piece; 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. The suspension transmission core and the conveying mechanism for plastic foaming net cover packaging in the embodiment of the invention adopt a traction mode by using friction transmission, and can conveniently stretch the flattened plastic foaming net cover to a size slightly larger than the packaged object in the conveying process by using the structures of the front tip, the middle straight part and the rear cone of the suspension transmission core, so that the packaged object can be quickly and conveniently packaged.

Description

Suspension transmission core and conveying mechanism for plastic foaming net sleeve packaging

Technical Field

The invention relates to the technical field of packaging equipment, in particular to a suspended transmission core and a conveying mechanism for packaging a plastic foaming net sleeve.

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. Automatic packaging equipment has extremely high packaging speed, and this just must require the continuous supply of wrapping material, and to realize the continuous supply of wrapping material, the wrapping material just can not be cut in advance, and the wrapping material need flatten and twine on the cylinder dish simultaneously to reach the purpose that saves space.

The plastic foaming net sleeve as a packing material has the following characteristics: the packaging structure has the advantages that the packaging structure is continuous, only the end face is provided with a packaging inlet, the packaging structure is easy to tear and cannot bear overlarge pulling force, and the packaging structure is easy to deform and cannot bear overlarge deformation. Therefore, the plastic foam net cannot be pulled by clamping and pulling. The proper tightness of the packaged net can be ensured only by expanding the plastic foaming net to a size slightly larger than the packaged object during packaging.

Disclosure of Invention

In view of the above, one aspect of the present invention provides a floating drive core for a plastic foam web package.

The suspension transmission core for the plastic foaming net cover packaging comprises a core body and an expansion piece; 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.

According to a preferred embodiment of the present invention, the core includes a cylindrical portion and a tip portion formed at a bottom end of the cylindrical portion; 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 invention, the core is of unitary construction with the expansion element.

According to a preferred embodiment of the invention, a cavity is provided in the core.

According to a preferred embodiment of the invention, a weight is arranged in the cavity.

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.

Another aspect of the invention provides a conveying mechanism for a plastic foaming net sleeve.

The conveying mechanism of the plastic foaming net sleeve comprises a first supporting transmission component, a second supporting transmission component and the suspension transmission core for packaging the plastic foaming net sleeve, wherein the suspension transmission core is used for supporting the plastic foaming net sleeve; the first support transmission assembly comprises a first support transmission rod and a second support transmission rod; the first support transmission rod and the second support transmission rod are symmetrically arranged on the left side and the right side of the core body in the suspension transmission core; the second support transmission assembly comprises a third support transmission rod and a fourth support transmission rod; the third supporting transmission rod and the fourth supporting transmission rod are symmetrically arranged on the front side and the rear side of the core body in the suspension transmission core.

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

Compared with the prior art, the suspension transmission core and the conveying mechanism for plastic foaming net cover packaging in the embodiment of the invention have the following beneficial effects:

the suspended transmission core and the conveying mechanism for packaging the plastic foaming net cover can conveniently stretch the flattened plastic foaming net cover to a size slightly larger than that of the packaged object in the conveying process, so that the packaged object can be quickly and conveniently packaged.

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,

FIGS. 1, 2, 3 are schematic structural views of a floating transmission core for a plastic foam web package according to some embodiments of the present invention;

FIGS. 4, 5 and 6 are schematic views of suspended drive cores for plastic foam web packages according to further embodiments of the present invention;

FIGS. 7, 8 and 9 are schematic structural views of a conveying mechanism of a plastic foam net according to some embodiments of the present invention;

fig. 10-18 are schematic views illustrating the use of the conveying mechanism of the plastic foaming net according to some embodiments of the present invention.

List of reference numerals

100-core

110-column part

120-tip part

130-cavity

140-first holding groove

150-second holding groove

160-rolling member

200-expansion element

210-accommodating groove

11-first support drive rod

12-second support transmission rod

21-third support drive rod

22-fourth support drive rod

30-suspension transmission core

40-plastic foaming net cover

50-packaged article

60-external adsorption device

70-electric heating wire

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.

One aspect of an embodiment of the invention discloses a suspended transmission core for a plastic foam net cover package.

As shown in fig. 1, 2 and 3, the suspension transmission core for plastic foam net packaging may include a core body 100 and an expansion member 200.

The core 100 has a cylindrical structure. Illustratively, the core 100 may include a cylindrical portion 110 and a tip portion 120 formed at a bottom end of the cylindrical portion 110. Preferably, the tip portion 120 may have a cone-shaped structure, a truncated cone-shaped structure (as shown in fig. 1 to 3), a spherical crown-shaped structure, or a wedge-shaped structure (as shown in fig. 4 to 6).

Wherein, the expansion piece 200 is in a truncated cone structure. The core 100 has a diameter equal to the diameter of the small cross-sectional end of the expansion element 200. In the mounted state, the small-section end of the expansion piece 200 having a truncated cone-shaped structure is disposed at the tip end of the core body 100 having a cylindrical structure, so that the expansion piece 200 forms a boss having a gradually enlarged diameter at the tip end of the core body 100.

Illustratively, the core 100 and the expansion member 200 may be fixed by a screw connection. In some embodiments, the core 100 and the expansion member 200 may be of a unitary construction. For example, the core 100 and the expansion member 200 may be formed by integral molding.

Preferably, the core 100 and the expansion member 200 can be made of plastic or other materials that meet the requirements of friction performance.

Through set up pointed end 120 in cylinder portion 110 bottom, can make things convenient for core 100 to put into from the opening part of plastics foaming screen cloth to the loading and the transport of plastics foaming screen cloth of being convenient for, because the plastics foaming screen cloth of lapping is the flat shape at the output, pointed end 120 (like the wedge structure) more does benefit to the shaping of plastics foaming screen cloth. In some embodiments, a hook may also be attached centrally at the rear end of the floating drive core (the large cross-section end of the extender 200) to facilitate loading of the floating drive core.

The small-section end of the expansion piece 200 having a truncated cone-shaped structure is provided at the tip end of the core 100 having a cylindrical structure, so that the expansion piece 200 forms a boss having a gradually enlarged diameter at the tip end of the core 100. On one hand, the expansion piece 200 in the truncated cone-shaped structure can support the whole suspension transmission core; on the other hand, the expansion member 200 having a truncated cone-shaped structure is also convenient for conveying the plastic foaming net sleeve, and the rear-end conical structure makes the final output shape of the plastic foaming net sleeve be an enlarged circle. In some embodiments, a section of cylinder may be disposed at the large section end of the expansion member 200 in a truncated cone structure, so that the conical 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 210 is provided at the large-section end of the expansion member 200, 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 providing the receiving groove 210 at the large-section end of the expanding member 200, the articles can be placed in the receiving groove 210 during packaging, thereby solving the problem that the plastic foaming net can not be conveyed during packaging of the packaged articles (such as apples, pears and the like in fruits).

Preferably, the depth of the receiving groove 210 may be set such that the article is located at the thickest middle position of the article by a distance of less than 10mm higher than the end surface of the end (large cross-section end) of the floating drive core. So as to achieve better packaging effect.

Further, in some embodiments, a cavity 130 is provided in the core 100, as shown in fig. 4-6. Illustratively, the cavity 130 may be opened at both ends or at a central position of the core 100 to reduce the weight.

Further, in some embodiments, a weight is provided in the cavity 130 to achieve a reasonable weight for the entire suspended transmission core, thereby achieving stable transmission.

Further, in some embodiments, as shown in fig. 1 to 6, first clamping grooves 140 are respectively disposed at corresponding positions on the left and right sides of the core body 100. Second clamping grooves 150 are respectively formed at corresponding positions on the front and rear sides of the core body 100.

In the installation state, the first support transmission rod 11 and the second support transmission rod 12 are symmetrically arranged in the first clamping grooves 140 at the left and right sides of the core body 100 in the suspension transmission core 30; the third bracing transmission bar 21 and the fourth bracing transmission bar 22 are symmetrically disposed in the second clamping grooves 150 at the front and rear sides of the core body 100 in the floating transmission core 30, as shown in fig. 7 to 9.

Preferably, the cross-sections of the first clamping groove 140 and the second clamping groove 150 are smooth curves close to circular arcs related to the thicknesses of the first supporting and driving rod 11, the second supporting and driving rod 12, the third supporting and driving rod 21, the fourth supporting and driving rod 22 and the plastic foaming net, so that the plastic foaming net can be smoothly conveyed. And the distance between the support transmission rod and the first and second clamping

grooves

140 and 150 can be synchronously adjusted to achieve different transmission efficiencies and achieve different packing effects. In addition, the first clamping groove 140 and the second clamping groove 150 are in a two-side in-line type and are driven by matching with two parallel support transmission rods. Alternatively, the first clamping groove 140 and the second clamping groove 150 are circular rings and are matched with two groups of V-shaped support 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.

In the conveying process of the plastic foaming net sleeve, the suspension transmission core 30 is continuously subjected to upward friction traction force, the problem can be solved by increasing the weight of the suspension transmission core 30, but the weight of the suspension transmission core 30 is too large, the friction force at the supporting surface of the suspension transmission core 30 is greatly increased, and the conveying of the plastic foaming net sleeve becomes difficult. To solve this problem, first clamping grooves 140 are provided at corresponding positions on the left and right sides of the core body 100, respectively. Second clamping grooves 150 are respectively formed at corresponding positions on the front and rear sides of the core body 100. 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.

Further, in some embodiments, in order to reduce the friction between the plastic foam netting 40 and the floating transmission core 30, a plurality of rolling members 160 may be embedded on the surface of the core body 100 and/or the expansion member 200; such as unpowered rollers and unpowered balls, etc., as shown in fig. 4-6. The arrangement of the rolling member 160 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 100, the rolling members 160 and/or the expansion members 200 may be surface treated (e.g., grit blasted) to reduce the coefficient of friction with the plastic foam sleeve. .

The embodiment of the invention also discloses a conveying mechanism of the plastic foaming net cover.

As shown in fig. 7, 8 and 9, the conveying mechanism of the plastic foam net includes a first supporting transmission assembly, a second supporting transmission assembly, and the floating transmission core 30 for the plastic foam net package as described above.

Wherein the first support transmission assembly comprises a first support transmission rod 11 and a second support transmission rod 12. The first support transmission rod 11 and the second support transmission rod 12 are symmetrically disposed at left and right sides of the core body 100 in the floating transmission core 30. The second support and transmission assembly comprises a third support and transmission rod 21 and a fourth support and transmission rod 22. The third support transmission rod 21 and the fourth support transmission rod 22 are symmetrically arranged at the front and rear sides of the core body 100 in the floating transmission core 30. The first supporting transmission assembly and the second supporting transmission assembly form a transverse double-row double-parallel supporting transmission rod structure, and the suspension transmission core 30 is ensured to be always in the central position. In some embodiments, the floating drive core 30 may be supported by other means, such as longitudinal support, multiple rows and rods. In the installation state, the first support transmission assembly and the second support transmission assembly are connected with a driving device such as a motor through a transmission mechanism such as belt transmission, chain transmission or gear transmission, so as to realize the rotation of the first support transmission rod 11, the second support transmission rod 12, the third support transmission rod 21 and the fourth support transmission rod 22. So that the first support transmission rod 11, the second support transmission rod 12, the third support transmission rod 21 and the fourth support transmission rod 22 can drive the plastic foaming net sleeve to move upwards through friction transmission.

Preferably, the first prop and drive rod 11, the second prop and drive rod 12, the third prop and drive rod 21 and the fourth prop and drive rod 22 can be opened in the circumferential direction to facilitate the installation of the plastic foam net. The distances between the first, second, third and fourth prop-and-

drive rods

11, 12, 21 and 22 and the floating drive core 30 can be adjusted during operation, so as to change the magnitude of the frictional drive force to achieve stable drive.

In addition, the friction coefficient between the surfaces of the first support transmission rod 11, the second support transmission rod 12, the third support transmission rod 21 and the fourth support transmission rod 22 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 11, the second support transmission rod 12, the third support transmission rod 21 and the fourth support transmission rod 22 and the plastic foam net cover 40 is higher, and the surface of the support transmission rod can be specially treated to realize the purpose. For example, the surfaces of the first, second, third and fourth support-

transmission rods

11, 12, 21 and 22 may be provided with surface structures (e.g., friction-increasing teeth, surface coatings or coatings, etc.) for increasing the friction coefficient.

Because the plastic foaming net cover 40 is clamped between the first support transmission rod 11, the second support transmission rod 12, the third support transmission rod 21, the fourth support transmission rod 22 and the suspension transmission core 30 for transmission, the direct power source of the plastic foaming net cover is mainly the friction force between the support transmission rod and the plastic foaming net cover 40, the friction force depends on the pressure between the support transmission rod and the plastic foaming 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 recovering the plastic foaming net cover from a compressed state and the like, wherein the pressure at the position of the conical surface of the suspension transmission core (the conical surface of the expansion piece 200) can be greatly changed along with the displacement of the suspension transmission core in the vertical direction, particularly when enough displacement is generated to separate from the plastic foaming net cover, the pressure applied to the plastic foaming net cover disappears, so that the transmission friction force of the plastic foaming 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, after the plastic foam net is conveyed to a desired length, the plastic foam net needs to be cut by using a cutting tool, a rotary tool, a laser, an electric heating wire, or the like.

In the conveying process of the plastic foaming net sleeve, the suspension transmission core 30 is continuously subjected to upward friction traction force, the problem can be solved by increasing the weight of the suspension transmission core 30, but the weight of the suspension transmission core 30 is too large, the friction force at the supporting surface of the suspension transmission core 30 is greatly increased, and the conveying of the plastic foaming net sleeve becomes difficult. In order to solve the problem, the middle section (the cylindrical part 110) of the suspension transmission core is provided with a groove at the same position as the support transmission rod, so that the support transmission rod can be clamped into the suspension transmission core, 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 ensuring the safety when the plastic foaming net sleeve is cut off.

Illustratively, first clamping grooves 140 are respectively arranged at corresponding positions on the left side and the right side of the core body 100. Second clamping grooves 150 are respectively formed at corresponding positions on the front and rear sides of the core body 100. In the installation state, the first support transmission rod 11 and the second support transmission rod 12 are symmetrically arranged in the first clamping grooves 140 at the left and right sides of the core body 100 in the suspension transmission core 30; the third bracing transmission rod 21 and the fourth bracing transmission rod 22 are symmetrically disposed in the second clamping grooves 150 at the front and rear sides of the core body 100 in the floating transmission core 30, as shown in fig. 10 to 18.

The suspension transmission core and the conveying mechanism for plastic foaming net cover packaging in the embodiment of the invention have the following working principle and process:

opening the first support transmission rod 11, the second support transmission rod 12, the third support transmission rod 21 and the fourth support transmission rod 22 around the suspension transmission core 30, taking out the suspension transmission core 30, leading out the plastic foaming net sleeve 40 from the net sleeve reel, penetrating through the working area of the suspension transmission core 30, then sleeving the plastic foaming net sleeve 40 into the suspension transmission core 30 from the opening until the end surface of the plastic foaming net sleeve 40 is flush with the end surface of the conical end (large-section end) of the suspension transmission core 30, then putting the suspension transmission core 30 back to the working position, and enabling the first support transmission rod 11, the second support transmission rod 12, the third support transmission rod 21 and the fourth support transmission rod 22 to clamp the suspension transmission core 30 to the required tightness, as shown in fig. 10 to 12;

the packaged object 50 is adsorbed to the packaging height above the suspension transmission core 30 through the external adsorption device 60, the driving device drives the first support transmission rod 11, the second support transmission rod 12, the third support transmission rod 21 and the fourth support transmission rod 22 to rotate through the transmission mechanism, and the plastic foam net cover 40 is output to the outside of the top end (large cross-section end) of the suspension transmission core 30 through friction transmission, so that the plastic foam net cover 40 wraps the surface of the packaged object 50, as shown in fig. 13 to 15. After the plastic foam net 40 outputs the set length, the first support transmission rod 11, the second support transmission rod 12, the third support transmission rod 21 and the fourth support transmission rod 22 stop rotating, and at the same time, the heating wire 70 cuts off the plastic foam net 40 from the top end of the floating transmission core 30, 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.

The suspension transmission core and the conveying mechanism for plastic foaming net cover packaging in the embodiment of the invention adopt a traction mode by using friction transmission, and can conveniently stretch the flattened plastic foaming net cover to a size slightly larger than the packaged object in the conveying process by using the structures of the front tip, the middle straight part and the rear cone of the suspension transmission core, so that the packaged object can be quickly and conveniently packaged.

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 suspension transmission core for plastic foam net package is characterized in that the suspension transmission core for plastic foam net package comprises a core body (100) and an expansion piece (200);

the core body (100) is of a cylindrical structure; the expansion piece (200) is of a truncated cone-shaped structure;

and the diameter of the core body (100) is equal to the diameter of the small-section end of the expansion piece (200);

the small section end of the expanding piece (200) with a cone frustum structure is arranged at the top end of the core body (100) with a cylindrical structure.

2. The floating transmission core for a plastic foam net pack according to claim 1, wherein the core body (100) comprises a cylindrical portion (110) and a tip portion (120) formed at a lower end of the cylindrical portion (110);

the tip portion (120) is in a cone-shaped structure, a truncated cone-shaped structure, a spherical crown-shaped structure or a wedge-shaped structure.

3. The floating transmission core for plastic foam net cover packaging according to claim 1, characterized in that the core body (100) and the expansion member (200) are of an integral structure.

4. The floating transmission core for plastic foam net cover packaging according to claim 1, characterized in that a cavity (130) is provided in the core body (100).

5. The floating transmission core for plastic foam net package according to claim 4, characterized in that a weight member is provided in the cavity (130).

6. The floating transmission core for plastic foaming net cover packaging according to claim 1, characterized in that a first clamping groove (140) is respectively arranged at the corresponding positions of the left and right sides on the core body (100); second clamping grooves (150) are respectively arranged at the corresponding positions of the front side and the rear side of the core body (100);

the cross sections of the first clamping groove (140) and the second clamping groove (150) 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 supporting transmission rod and the first clamping groove (140) and the distance between the supporting transmission rod and the second clamping groove (150) can be synchronously adjusted, so that different transmission efficiencies are realized, and different packaging effects are achieved;

the first clamping groove (140) and the second clamping groove (150) are in a two-side in-line mode and are matched with two parallel supporting transmission rods for transmission; or the first clamping groove (140) and the second clamping groove (150) are circular and are matched with two groups of V-shaped parallel support transmission rods for transmission.

7. The floating transmission core for the plastic foaming net cover packaging according to the claim 1, characterized in that a plurality of rolling members (160) are embedded on the surface of the core body (100) and/or the expansion member (200), the arrangement of the rolling members (160) 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 be damaged during the transportation; alternatively, the surfaces of the core (100), the rolling member (160) and/or the expansion member (200) are surface-treated to reduce the coefficient of friction with the plastic foam net sleeve.

8. The floating transmission core for plastic foam net package of claim 1, characterized in that a receiving groove (210) is provided at the large-section end of the expansion piece (200).

9. A conveying mechanism for plastic foaming net cover, characterized in that the conveying mechanism for plastic foaming net cover comprises a first supporting transmission component, a second supporting transmission component and a suspension transmission core (30) for plastic foaming net cover package according to one of claims 1 to 8;

the first support transmission assembly comprises a first support transmission rod (11) and a second support transmission rod (12); the first support transmission rod (11) and the second support transmission rod (12) are symmetrically arranged on the left side and the right side of a core body (100) in the suspension transmission core (30);

the second supporting transmission assembly comprises a third supporting transmission rod (21) and a fourth supporting transmission rod (22); the third supporting transmission rod (21) and the fourth supporting transmission rod (22) are symmetrically arranged on the front side and the rear side of a core body (100) in the suspension transmission core (30).

10. The conveying mechanism for plastic foam net according to claim 9, wherein a surface structure for increasing friction coefficient is provided on the surface of the first support transmission rod (11), the second support transmission rod (12), the third support transmission rod (21) and the fourth support transmission rod (22).