A suspension transmission core and conveying mechanism for plastic foam net packaging

Abstract

The embodiment of the present invention discloses a suspended transmission core and a conveying mechanism for plastic foam mesh packaging. The suspended transmission core for plastic foam mesh packaging includes a core body and an expansion piece; the core body is a cylindrical structure; the expansion piece is a truncated cone structure; and the diameter of the core body is equal to the diameter of the small cross-section end of the expansion piece; the small cross-section end of the expansion piece with a truncated cone structure is arranged at the top of the core body with a cylindrical structure. The suspended transmission core and the conveying mechanism for plastic foam mesh packaging of the embodiment of the present invention adopt a method of using friction transmission for traction. By utilizing the front pointed, middle straight and rear tapered structure of the suspended transmission core, the flattened plastic foam mesh can be easily expanded to a size slightly larger than the packaged object during the conveying process, so that the packaged object can be packaged quickly and conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field related to packaging equipment, and in particular to a suspension transmission core and a conveying mechanism for plastic foaming net sleeve packaging. Background Art

[0002] Currently, the primary plastic foam mesh on the market is polyethylene foam (also known as pearl cotton). Polyethylene foam, also known as EPE, is a non-crosslinked, closed-cell structure and a new, environmentally friendly packaging material. Polyethylene foam has been widely used for impact protection packaging for various products such as fruits, vegetables, flowers, and glassware containers, such as bottled wine. Current packaging methods rely on manual packaging, which involves cutting the polyethylene foam mesh into custom lengths during production. The appropriate length is then selected based on the size of the object being packaged, and the mesh is manually applied to the desired location on the surface of the packaged object. This traditional method has the following drawbacks: slow packaging speed; labor-intensive; extremely tedious work, making recruitment increasingly difficult; the resulting messy packaging material, inconvenient to transport and manage; and unreliable packaging accuracy.

[0003] To increase packaging speed while meeting packaging precision requirements, automatic packaging equipment with plastic foam mesh is required. Automatic packaging equipment has extremely high packaging speeds, which requires a continuous supply of packaging material. To achieve this, the packaging material cannot be cut in advance and must be flattened and wrapped around a cylindrical tray to save space.

[0004] Plastic foam mesh packaging materials have the following characteristics: they are continuous, with packaging inlets only at the ends; they tear easily, so they cannot withstand excessive tension; and they deform easily, so they cannot withstand significant deformation. Therefore, they should not be pulled by clamping. Instead, they should be stretched slightly larger than the object being packaged to ensure the proper tightness of the mesh after packaging. Summary of the Invention

[0005] In view of this, one aspect of the present invention provides a suspension transmission core for plastic foam mesh packaging.

[0006] The suspension transmission core for plastic foam mesh packaging includes a core body and an expansion piece; the core body has a cylindrical structure; the expansion piece has a truncated cone 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 with a truncated cone structure is arranged at the top end of the core body with a cylindrical structure.

[0007] According to a preferred embodiment of the present invention, the core includes a cylindrical portion and a tip portion formed at the bottom end of the cylindrical portion; the tip portion is in a conical structure, a truncated cone structure, a spherical cap structure or a wedge structure.

[0008] According to a preferred embodiment of the present invention, the core and the expansion piece are an integral structure.

[0009] According to a preferred embodiment of the present invention, a cavity is provided in the core.

[0010] According to a preferred embodiment of the present invention, a counterweight is provided in the cavity.

[0011] According to a preferred embodiment of the present invention, first clamping grooves are respectively provided at corresponding positions on the left and right sides of the core body; second clamping grooves are respectively provided at corresponding positions on the front and back sides of the core body; the cross-sections of the first clamping groove and the second clamping groove are smooth curves close to circular arcs related to the size of the support transmission rod and the thickness of the plastic foam mesh sleeve, so that the transportation of the plastic foam mesh sleeve is smoother; and the distance between the support transmission rod and the first clamping groove and the second clamping groove can be adjusted synchronously to achieve different transmission efficiencies and different packaging effects; the first clamping groove and the second clamping groove are in line on both sides, and are transmitted in conjunction with two parallel support transmission rods; or, the first clamping groove and the second clamping groove are circular ring-shaped, and are transmitted in conjunction with two groups of V-shaped support transmission rods.

[0012] According to a preferred embodiment of the present invention, a plurality of rolling elements are embedded on the surface of the core body and / or the expansion piece. The provision of the rolling elements can greatly improve the smoothness of conveying the plastic foam mesh sleeve and make the plastic foam mesh sleeve less likely to be damaged during the conveying process; or, the surface of the core body, the rolling elements and / or the expansion piece is surface treated to reduce the friction coefficient between the core body and the plastic foam mesh sleeve.

[0013] According to a preferred embodiment of the present invention, an accommodating groove is provided at the large-cross-section end of the expansion piece.

[0014] Another aspect of the present invention provides a conveying mechanism for a plastic foam mesh sleeve.

[0015] The conveying mechanism of the plastic foam mesh sleeve includes a first support transmission assembly, a second support transmission assembly and a suspension transmission core for plastic foam mesh sleeve packaging as described above; the first support transmission assembly includes 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 and right sides of the core body in the suspension transmission core; the second support transmission assembly includes a third support transmission rod and a fourth support transmission rod; the third support transmission rod and the fourth support transmission rod are symmetrically arranged on the front and back sides of the core body in the suspension transmission core.

[0016] According to a preferred embodiment of the present invention, surface structures for increasing the friction coefficient are provided on the surfaces of the first support transmission rod, the second support transmission rod, the third support transmission rod and the fourth support transmission rod.

[0017] Compared with the prior art, the suspension transmission core and conveying mechanism for plastic foam mesh packaging according to the embodiment of the present invention have the following beneficial effects:

[0018] The suspension transmission core and conveying mechanism for plastic foam mesh packaging according to the embodiment of the present invention can conveniently expand the flattened plastic foam mesh to a size slightly larger than the packaged object during transportation, so that the packaged object can be packaged quickly and conveniently.

[0019] Some additional features of the present invention may be set forth in the following description. Some additional features of the present invention will be apparent to those skilled in the art from an examination of the following description and accompanying drawings, or from the manufacture or operation of the embodiments. The disclosed features of the present invention may be realized and attained by practice or use of the various methods, means, and combinations of the specific embodiments described below. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute a limitation of the present invention. In each figure, the same reference numerals represent the same components.

[0021] Figure 1 、 Figure 2 、 Figure 3 is a schematic structural diagram of a suspension transmission core for plastic foam mesh packaging according to some embodiments of the present invention;

[0022] Figure 4 、 Figure 5 、 Figure 6 Schematic diagram of the structure of a suspension transmission core for plastic foam mesh packaging according to other embodiments of the present invention;

[0023] Figure 7 、 Figure 8 、 Figure 9 is a schematic structural diagram of a conveying mechanism of a plastic foam mesh sleeve according to some embodiments of the present invention;

[0024] Figures 10 to 18 Schematic diagram of the use process of the conveying mechanism of the plastic foam mesh sleeve according to some embodiments of the present invention.

[0025] Reference Signs List

[0026] 100-core

[0027] 110-column

[0028] 120-tip

[0029] 130-Cavity

[0030] 140-first clamping groove

[0031] 150-Second clamping groove

[0032] 160-Rolling parts

[0033] 200-Expansion

[0034] 210-accommodation slot

[0035] 11-First support transmission rod

[0036] 12-Second support transmission rod

[0037] 21-Third support transmission rod

[0038] 22-Fourth support transmission rod

[0039] 30-Suspended transmission core

[0040] 40-Plastic foam mesh

[0041] 50-Packaging

[0042] 60-External adsorption device

[0043] 70-Heating wire DETAILED DESCRIPTION

[0044] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0045] It should be noted that if the description and claims of the present invention and the above-mentioned drawings refer to the terms "first", "second", etc., they are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate to facilitate the embodiments of the present invention described herein. In addition, if the terms "including" and "having" and any variations thereof are involved, it is intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0046] In the present invention, when terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inside," "outside," "center," "vertical," "horizontal," "transverse," and "longitudinal" are used, the orientations or positions they indicate are based on those shown in the accompanying drawings. These terms are primarily intended to better describe the present invention and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0047] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0048] Furthermore, in this disclosure, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on the specific circumstances.

[0049] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0050] One aspect of an embodiment of the present invention discloses a suspension transmission core for plastic foam mesh packaging.

[0051] like Figure 1 、 Figure 2 、 Figure 3As shown, the suspension transmission core for plastic foam mesh packaging may include a core body 100 and an expansion piece 200 .

[0052] The core 100 is a cylindrical structure. For example, the core 100 may include a cylindrical portion 110 and a tip portion 120 formed at the bottom end of the cylindrical portion 110. Preferably, the tip portion 120 may be a conical structure, a truncated cone structure (such as Figures 1 to 3 As shown), spherical crown structure or wedge-shaped structure (as Figures 4 to 6 shown).

[0053] The expansion member 200 has a truncated cone-shaped structure. The diameter of the core 100 is equal to the diameter of the smaller cross-section end of the expansion member 200. When installed, the smaller cross-section end of the truncated cone-shaped expansion member 200 is positioned at the top of the cylindrical core 100, forming a gradually increasing diameter boss at the top of the core 100.

[0054] For example, the core 100 and the expansion member 200 can be fixed by screw connection. In some embodiments, the core 100 and the expansion member 200 can also adopt an integral structure. For example, the core 100 and the expansion member 200 can be made by an integral molding method.

[0055] Preferably, the core 100 and the expansion piece 200 can be made of materials that meet the friction performance requirements, such as plastic.

[0056] By providing a pointed portion 120 at the bottom end of the cylindrical portion 110, the core 100 can be easily inserted through the opening of the plastic foam mesh sleeve, and the loading and transportation of the plastic foam mesh sleeve are facilitated. Because the rolled plastic foam mesh sleeve is flat at the delivery end, the pointed portion 120 (e.g., a wedge-shaped structure) further facilitates the shaping of the plastic foam mesh sleeve. In some embodiments, a hook can be connected to the center of the rear end of the suspension transmission core (the end with the larger cross-section of the expansion member 200) to facilitate loading of the suspension transmission core.

[0057] By placing the small-section end of the expansion piece 200 having a truncated cone structure at the top of the core 100 having a cylindrical structure, the expansion piece 200 forms a boss with a gradually increasing diameter at the top of the core 100. On the one hand, the expansion piece 200 having a truncated cone structure can support the entire suspension transmission core; on the other hand, the expansion piece 200 having a truncated cone structure also facilitates the transportation of the plastic foam mesh, and the rear-end conical structure makes the final output shape of the plastic foam mesh an enlarged circle. In some embodiments, a cylindrical section can be provided at the large-section end of the expansion piece 200 having a truncated cone structure, so that the end of the rear-end cone is a cylinder, so that the final output plastic foam mesh becomes a vertically upward circular tube, which facilitates the packaging of subsequent products.

[0058] Furthermore, in some embodiments, a receiving groove 210 is provided at the large cross-section end of the expansion member 200, such as Figure 4 As shown. Because some packaged items (such as apples and pears) are thick in the middle and tapered at both ends, the plastic foam mesh will first contact the lower portion of these items when conveyed upward. Because the lower portion is smaller, the plastic foam mesh is blocked by the larger middle portion of the items, preventing conveyance. By providing a receiving groove 210 at the large-cross-section end of the expansion member 200, these items are placed in the receiving groove 210 during packaging, thereby resolving the problem of the plastic foam mesh being unable to convey these items (such as apples and pears) when packaging.

[0059] Preferably, the depth of the receiving groove 210 can be set so that the distance between the thickest position of the middle of the article and the end surface of the end (large cross-section end) of the suspension transmission core after the article is placed is less than 10 mm, so as to achieve a better packaging effect.

[0060] Furthermore, in some embodiments, a cavity 130 is provided in the core 100, such as Figures 4 to 6 For example, the cavity 130 can be opened at both ends or the center of the core 100 to reduce weight.

[0061] Furthermore, in some embodiments, a counterweight is provided in the cavity 130 so that the entire suspension transmission core reaches a reasonable weight, thereby achieving stable transmission.

[0062] Furthermore, in some embodiments, Figures 1 to 6 As shown, first clamping grooves 140 are respectively provided at corresponding positions on the left and right sides of the core body 100. Second clamping grooves 150 are respectively provided at corresponding positions on the front and back sides of the core body 100.

[0063] In the installed state, the first supporting transmission rod 11 and the second supporting transmission rod 12 are symmetrically arranged in the first clamping grooves 140 on the left and right sides of the core body 100 of the suspension transmission core 30; the third supporting transmission rod 21 and the fourth supporting transmission rod 22 are symmetrically arranged in the second clamping grooves 150 on the front and back sides of the core body 100 of the suspension transmission core 30. Figures 7 to 9 shown.

[0064] Preferably, the cross-section of the first clamping groove 140 and the second clamping groove 150 is a smooth curve close to a circular arc related to the thickness 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 mesh, so that the plastic foam mesh is transported more smoothly. In addition, the distance between the support transmission rod and the first clamping groove 140 and the second clamping groove 150 can be synchronously adjusted to achieve different transmission efficiencies and achieve different packaging effects. In addition, the first clamping groove 140 and the second clamping groove 150 are in a two-sided in-line type, and are used in conjunction with two parallel support transmission rods for transmission. Alternatively, the first clamping groove 140 and the second clamping groove 150 are in a circular ring type, and are used in conjunction with two groups of V-shaped support transmission rods for transmission. The two-sided in-line structure is the simplest. The clamping grooves can also be in two or more groups, with two groups being the simplest structure that can stably clamp the arc transmission core and transmit.

[0065] During the conveying process of the plastic foam mesh, the suspension transmission core 30 will be constantly subjected to upward frictional traction. This problem can be solved by increasing the weight of the suspension transmission core 30. However, if the weight of the suspension transmission core 30 is too large, the friction at the support surface of the suspension transmission core 30 will be greatly increased, making the conveying of the plastic foam mesh difficult. To solve this problem, first clamping grooves 140 are respectively provided at corresponding positions on the left and right sides of the core body 100. Second clamping grooves 150 are respectively provided at corresponding positions on the front and back sides of the core body 100. This allows the support transmission rod to be inserted into the suspension transmission core, so that the suspension transmission core is restricted by the position of the support transmission rod. Ultimately, the suspension transmission core does not have large vertical displacement, thereby avoiding accidents such as collision and interference with the cutting mechanism during its vertical fall back, ensuring safety during the cutting of the plastic foam mesh.

[0066] Furthermore, in some embodiments, in order to reduce the friction between the plastic foam mesh 40 and the suspension transmission core 30, a plurality of rolling elements 160 may be embedded on the surface of the core 100 and / or the expansion element 200; such as unpowered rollers and unpowered balls, etc. Figures 4 to 6 As shown. The provision of rolling element 160 can significantly improve the smoothness of conveying the plastic foam mesh and make the plastic foam mesh less susceptible to damage during conveyance. Alternatively, the surfaces of core 100, rolling element 160, and / or expansion element 200 can be treated (e.g., sandblasted) to reduce the coefficient of friction with the plastic foam mesh.

[0067] The embodiment of the present invention further discloses a conveying mechanism for the plastic foaming mesh sleeve.

[0068] like Figure 7 、 Figure 8 and Figure 9As shown, the conveying mechanism of the plastic foam mesh sleeve includes a first supporting transmission component, a second supporting transmission component and the suspension transmission core 30 for plastic foam mesh sleeve packaging as described above.

[0069] The first support transmission assembly includes a first support transmission rod 11 and a second support transmission rod 12. The first and second support transmission rods 11 and 12 are symmetrically arranged on the left and right sides of the core 100 of the suspension transmission core 30. The second support transmission assembly includes a third support transmission rod 21 and a fourth support transmission rod 22. The third and fourth support transmission rods 21 and 22 are symmetrically arranged on the front and back sides of the core 100 of the suspension transmission core 30. This creates a double-row, parallel support transmission rod structure with two horizontal rows, ensuring that the suspension transmission core 30 is always centered. In some embodiments, the suspension transmission core 30 may also utilize other support methods, such as longitudinal support, multi-row support, or multi-rod support. When installed, the first and second support transmission assemblies are connected to a drive device, such as a motor, via a transmission mechanism, such as a belt drive, chain drive, or gear drive, to enable rotation of the first, second, third, and fourth support transmission rods 11, 12, 21, and 22. 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 foam mesh sleeve to move upward through friction transmission.

[0070] Preferably, 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 be opened in all directions to facilitate the installation of the plastic foam mesh. During operation, the distance between 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 suspension transmission core 30 can be adjusted to change the magnitude of the friction transmission force to achieve stable transmission.

[0071] 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 mesh 40 directly affects the magnitude of the conveying friction force. In order to increase the conveying speed and thus improve efficiency, 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 mesh 40 should be high, which can be achieved by performing special treatment on the surfaces of the support transmission rods. For example, a surface structure for increasing the friction coefficient (such as adding friction teeth, a surface coating or a film, etc.) can be provided on 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.

[0072] Because the plastic foam mesh 40 is clamped between 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 suspension transmission core 30 for transportation, the direct power source is mainly the friction between the support transmission rods and the plastic foam mesh 40. The magnitude of this friction depends on the pressure between the support transmission rods and the plastic foam mesh. The pressure is mainly due to the clamping force of the support transmission rods, the pressure at the support position of the suspension transmission core, and the force required for the plastic foam mesh to recover from its compressed state. The pressure at the conical surface of the suspension transmission core (the conical surface of the expansion member 200) will change significantly with the vertical displacement of the suspension transmission core. In particular, when the displacement is large enough to separate from the plastic foam mesh, the pressure applied to the plastic foam mesh will disappear, greatly reducing the friction of the plastic foam mesh during transportation, resulting in failure or poor transportation. To ensure smooth transportation of the plastic foam mesh, the suspension transmission core must not have large vertical displacement. In addition, after the plastic foam mesh is delivered to the required length, it needs to be cut by using shearing tools, rotary tools, laser cutting, heating wires, etc.

[0073] During the conveying process of the plastic foam mesh, the suspension transmission core 30 is constantly subjected to upward frictional traction. This problem can be solved by increasing the weight of the suspension transmission core 30. However, if the suspension transmission core 30 is too heavy, the friction at the support surface of the suspension transmission core 30 will be greatly increased, making the conveying of the plastic foam mesh difficult. To solve this problem, the middle section of the suspension transmission core (the columnar portion 110) has a groove in the same position as the support transmission rod. This allows the support transmission rod to be inserted into the suspension transmission core, so that the suspension transmission core is restricted by the position of the support transmission rod. Ultimately, the suspension transmission core does not move significantly in the vertical direction, ensuring safety when cutting the plastic foam mesh.

[0074] For example, first clamping grooves 140 are respectively provided at corresponding positions on the left and right sides of the core body 100. Second clamping grooves 150 are respectively provided at corresponding positions on the front and back sides of the core body 100. In the installed state, the first support transmission rod 11 and the second support transmission rod 12 are symmetrically arranged in the first clamping grooves 140 on the left and right sides of the core body 100 in the suspension transmission core 30; the third support transmission rod 21 and the fourth support transmission rod 22 are symmetrically arranged in the second clamping grooves 150 on the front and back sides of the core body 100 in the suspension transmission core 30. Figures 10 to 18 shown.

[0075] The working principle and process of the suspension transmission core and conveying mechanism for plastic foam mesh packaging according to the embodiment of the present invention are as follows:

[0076] Open the first supporting transmission rod 11, the second supporting transmission rod 12, the third supporting transmission rod 21 and the fourth supporting transmission rod 22 around the suspension transmission core 30, remove the suspension transmission core 30, lead the plastic foam mesh 40 from the mesh reel, pass it through the working area of ​​the suspension transmission core 30, and then insert the plastic foam mesh 40 into the suspension transmission core 30 from the opening until the end surface of the plastic foam mesh 40 is flush with the end surface of the tapered end (large cross-section end) of the suspension transmission core 30, then put the suspension transmission core 30 back to the working position, and make the first supporting transmission rod 11, the second supporting transmission rod 12, the third supporting transmission rod 21 and the fourth supporting transmission rod 22 clamp the suspension transmission core 30 to the required tightness, such as Figures 10 to 12 As shown;

[0077] The object to be packaged 50 is adsorbed to the packaging height above the suspension transmission core 30 by 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 mesh 40 is output to the top end (large cross-section end) of the suspension transmission core 30 through friction transmission, so that the plastic foam mesh 40 wraps the surface of the object to be packaged 50. Figures 13 to 15 After the plastic foam mesh 40 has output 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 the heating wire 70 cuts off the plastic foam mesh 40 from the top of the suspension transmission core 30, as shown. Figures 16 to 18 After being cut, the plastic foam mesh 40 recovers elastically and wraps the packaged object 50. The packaged object 50 is transferred to the external assembly line through the external adsorption device 60, and at the same time, new packaged objects are adsorbed for packaging, thus realizing the packaging cycle.

[0078] The suspension transmission core and conveying mechanism for plastic foam mesh packaging in the embodiment of the present invention adopts a friction transmission method for traction. The front pointed, middle straight and rear tapered structure of the suspension transmission core can conveniently expand the flattened plastic foam mesh to a size slightly larger than the packaged object during the conveying process, so that the packaged object can be packaged quickly and conveniently.

[0079] It should be noted that all features disclosed in this specification, or steps in all methods or processes disclosed, except for mutually exclusive features and / or steps, can be combined in any manner.

[0080] Furthermore, the above-described specific embodiments are merely illustrative. Persons skilled in the art may devise various solutions based on the disclosure of the present invention, and such solutions fall within the scope of the present invention and are intended to be protected by the present invention. Persons skilled in the art should understand that the present description and drawings are intended to be illustrative and not to limit the scope of the claims. The scope of protection of the present invention is defined by the claims and their equivalents.

Claims

1. A suspension transmission core for plastic foam net packaging, characterized in that: The suspension transmission core for plastic foam mesh packaging comprises a core body (100) and an expansion piece (200); The core (100) is a cylindrical structure; the expansion piece (200) is a truncated cone structure; Furthermore, the diameter of the core (100) is equal to the diameter of the small-section end of the expansion piece (200); The small-section end of the expansion piece (200) having a truncated cone structure is arranged at the top end of the core (100) having a cylindrical structure; A receiving groove (210) is provided at the large-section end of the expansion piece (200); First clamping grooves (140) are respectively provided at corresponding positions on the left and right sides of the core body (100); second clamping grooves (150) are respectively provided at corresponding positions on the front and back sides of the core body (100); 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 size of the supporting transmission rod and the thickness of the plastic foam mesh sleeve, so that the plastic foam mesh sleeve can be transported more smoothly; Furthermore, the distances between the supporting transmission rod and the first clamping groove (140) and the second clamping groove (150) can be adjusted synchronously to achieve different transmission efficiencies and different packaging effects; The first clamping groove (140) and the second clamping groove (150) are in a two-sided straight-line type, and are used in conjunction with two parallel support transmission rods for transmission; or, the first clamping groove (140) and the second clamping groove (150) are in a circular ring type, and are used in conjunction with two groups of V-shaped support transmission rods for transmission.

2. The suspension transmission core for plastic foam net packaging according to claim 1, characterized in that: The core (100) includes a columnar portion (110) and a tip portion (120) formed at the bottom end of the columnar portion (110); The tip portion (120) is in a conical structure, a truncated cone structure, a spherical cap structure or a wedge structure.

3. The suspension transmission core for plastic foam net packaging according to claim 1, characterized in that: The core (100) and the expansion piece (200) are an integral structure.

4. The suspension transmission core for plastic foam net packaging according to claim 1, characterized in that: A cavity (130) is provided in the core (100).

5. The suspension transmission core for plastic foam net packaging according to claim 4, characterized in that: A counterweight is provided in the cavity (130).

6. The suspension transmission core for plastic foam net packaging according to claim 1, characterized in that: A plurality of rolling elements (160) are inlaid on the surface of the core (100) and / or the expansion element (200). The provision of the rolling elements (160) can greatly improve the smoothness of conveying the plastic foam mesh and make the plastic foam mesh less susceptible to damage during the conveying process. The surfaces of the core (100), the rolling elements (160) and / or the expansion element (200) are surface-treated to reduce the friction coefficient between the core (100), the rolling elements (160) and / or the expansion element (200) and the plastic foam mesh.

7. A conveying mechanism for a plastic foam mesh, characterized in that: The conveying mechanism of the plastic foam mesh sleeve comprises a first supporting transmission component, a second supporting transmission component and a suspension transmission core (30) for plastic foam mesh sleeve packaging according to any one of claims 1 to 6; 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 and right sides of the core body (100) in the suspension transmission core (30); The second support transmission assembly comprises a third support transmission rod (21) and a fourth support transmission rod (22); the third support transmission rod (21) and the fourth support transmission rod (22) are symmetrically arranged on the front and rear sides of the core body (100) of the suspension transmission core (30).

8. The conveying mechanism of the plastic foam mesh according to claim 7, characterized in that: Surface structures for increasing the friction coefficient are provided on 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).

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