A plastic foaming net sleeve packaging mechanism

Abstract

An embodiment of the present invention discloses a plastic foam net sleeve packaging mechanism. The first support drive rod assembly and the second support drive rod assembly are arranged on the support frame in a manner that they can move towards or away from each other along the X-axis driven by a first drive device; the third support drive rod assembly and the fourth support drive rod assembly are arranged on the support frame in a manner that they can move towards or away from each other along the Y-axis driven by the first drive device; the first floating drive core is arranged between the first support drive rod assembly and the fourth support drive rod assembly; the cutting mechanism is movably arranged on the support frame and is located above the plastic foam net sleeve conveying mechanism, and the cutting mechanism is connected to a third drive device through a third transmission mechanism. The plastic foam net sleeve packaging mechanism of the embodiment of the present invention can be applicable to all sizes of plastic foam net sleeves on the market, and only need to replace the corresponding floating drive core; it can package various items without being affected by their shapes.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging equipment, and more particularly to a plastic foam net sleeve packaging mechanism. Background Art

[0002] At present, the plastic foam net sleeves on the market are mainly polyethylene foam cotton net sleeves (also known as EPE net sleeves). Polyethylene foam cotton is a non-crosslinked closed-cell structure, also known as EPE pearl cotton, which is a new type of environmentally friendly packaging material. Polyethylene foam cotton net sleeves have been widely used in the anti-collision protection packaging of various fruits, vegetables, flowers, and products with glass products as containers, such as bottled wine. The current packaging method is manual packaging. The specific operation method is as follows: First, when producing the polyethylene foam cotton net sleeves, they are cut into unit net sleeves of a certain length specification. During packaging, a unit net sleeve of an appropriate length is selected according to the size of the object to be packaged, and the unit net sleeve is manually put on the surface of the object to be packaged at the required position. This traditional method has the following defects: low packaging speed; consuming a large amount of labor; the work content of the practitioners is extremely boring, and it will be more and more difficult to recruit relevant personnel; the packaging materials are very messy after cutting, which is inconvenient for transportation and management; the packaging accuracy cannot be guaranteed.

[0003] If we want to improve the packaging speed and at the same time meet the packaging accuracy requirements, we need to use an automatic packaging equipment for plastic foam net sleeves. The automatic packaging equipment has an extremely high packaging speed, which requires continuous supply of the packaging materials. To achieve continuous supply of the packaging materials, the packaging materials cannot be cut in advance. At the same time, the plastic foam net sleeve packaging materials need to be flattened and wound around a cylindrical disk to save space.

[0004] Since the plastic foam net sleeves are flattened and wound around the cylindrical disk, and there is only a packaging inlet at the end face continuously, so when packaging, it is necessary to solve the problem of how to open the plastic foam net sleeves. Summary of the Invention

[0005] In view of this, the present invention provides a plastic foam net sleeve packaging mechanism.

[0006] The plastic foam net sleeve packaging mechanism includes a support frame, a plastic foam net sleeve conveying mechanism, and a cutting mechanism;

[0007] The plastic foam net sleeve conveying mechanism includes a first support drive rod assembly, a second support drive rod assembly, a third support drive rod assembly, a fourth support drive rod assembly, and a first floating drive core; the first support drive rod assembly and the second support drive rod assembly are arranged relatively parallel and are disposed on the support frame in a manner that can move towards or away from each other along the X-axis; the third support drive rod assembly and the fourth support drive rod assembly are arranged relatively parallel below the first support drive rod assembly and the second support drive rod assembly and are disposed on the support frame in a manner that can move towards or away from each other along the Y-axis; the first floating drive core is disposed between the first support drive rod assembly, the second support drive rod assembly, the third support drive rod assembly, and the fourth support drive rod assembly; and, the first support drive rod assembly and the second support drive rod assembly are connected to a first drive device through a first transmission mechanism; the third support drive rod assembly and the fourth support drive rod assembly are connected to a second drive device through a second transmission mechanism.

[0008] The cutting mechanism is movably disposed on the support frame and above the plastic foam net sleeve conveying mechanism, and the cutting mechanism is connected to a third drive device through a third transmission mechanism.

[0009] According to a preferred embodiment of the present invention, the first floating drive core includes a core body and an expansion member; the core body has a cylindrical structure; the expansion member has a frustum of a cone structure; and, the diameter of the core body is equal to the diameter of the small cross-section end of the expansion member; the small cross-section end of the expansion member having a frustum of a cone structure is disposed at the top of the core body having a cylindrical structure; a pointed end portion is provided at the bottom end of the core body; the pointed end portion has a conical structure, a frustum of a cone structure, a spherical crown structure, or a wedge structure.

[0010] 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 grooves and the second clamping grooves are smooth curves close to an arc related to the size of the support drive rod and the thickness of the plastic foam net sleeve, so that the conveying of the plastic foam net sleeve is smoother; and the distances between the support drive rod and the first clamping grooves and the second clamping grooves can be synchronously adjusted to achieve different transmission efficiencies and different packaging effects; the first clamping grooves and the second clamping grooves are in a two-side straight arrangement and cooperate with two parallel support drive rods for transmission; or, the first clamping grooves and the second clamping grooves are in a circular arrangement and cooperate with two groups of V-shaped arranged support drive rods for transmission.

[0011] According to a preferred embodiment of the present invention, a plurality of rolling elements are inlaid on the surface of the core body and / or the expander. The arrangement of the rolling elements can greatly improve the smoothness of the conveying of the plastic foam sleeve, and at the same time make the plastic foam sleeve less likely to be damaged during the conveying process; alternatively, the surfaces of the core body, the rolling elements and / or the expander are surface-treated to reduce the friction coefficient with the plastic foam sleeve.

[0012] According to a preferred embodiment of the present invention, a receiving groove is provided at the large cross-section end of the expander.

[0013] According to a preferred embodiment of the present invention, the support frame includes a first support member, a second support member, a third support member and a fourth support member; the first support member and the second support member are arranged oppositely; both ends of the third support member and the fourth support member are respectively connected to the first support member and the second support member; and, a first sliding rod and a second sliding rod are respectively provided between the two ends of the first support member and the second support member; a third sliding rod and a fourth sliding rod are respectively provided between the two ends of the third support member and the fourth support member.

[0014] According to a preferred embodiment of the present invention, the first support transmission rod assembly includes a first mounting member, a first support transmission rod and a first driving motor; both ends of the first mounting member are respectively slidably connected to the support frame; the first support transmission rod is rotatably provided on the first mounting member; the first driving motor is provided on the first mounting member and is in transmission connection with the first support transmission rod;

[0015] The second support transmission rod assembly includes a second mounting member, a second support transmission rod and a second driving motor; both ends of the second mounting member are respectively slidably connected to the support frame; the second support transmission rod is rotatably provided on the second mounting member; the second driving motor is provided on the second mounting member and is in transmission connection with the second support transmission rod;

[0016] The third support transmission rod assembly includes a third mounting member, a third support transmission rod and a third driving motor; both ends of the third mounting member are respectively slidably connected to the support frame; the third support transmission rod is rotatably provided on the third mounting member; the third driving motor is provided on the third mounting member and is in transmission connection with the third support transmission rod;

[0017] The fourth support transmission rod assembly includes a fourth mounting member, a fourth support transmission rod and a fourth driving motor; both ends of the fourth mounting member are respectively slidably connected to the support frame; the fourth support transmission rod is rotatably provided on the fourth mounting member; the fourth driving motor is provided on the fourth mounting member and is in transmission connection with the fourth support transmission rod.

[0018] 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 drive rod, the second support drive rod, the third support drive rod, and the fourth support drive rod.

[0019] According to a preferred embodiment of the present invention, the cutting mechanism is an electric heating wire cutting mechanism, a shearing tool cutting mechanism, a rotary tool cutting mechanism, or a laser cutting mechanism.

[0020] According to a preferred embodiment of the present invention, the first transmission mechanism includes a first drive rod, a first pulley, and a second pulley provided on the support frame; the first pulley is connected to one end of the first drive rod through a first transmission belt; the second pulley is connected to the other end of the first drive rod through a second transmission belt; the first drive rod is connected to the first drive device through a third transmission belt;

[0021] Both ends of the first support drive rod assembly are respectively connected to the upper sections of the first transmission belt and the second transmission belt; both ends of the second support drive rod assembly are respectively connected to the lower sections of the first transmission belt and the second transmission belt;

[0022] The second transmission mechanism includes a third pulley, a fourth pulley, and a fifth pulley provided on the support frame; the third pulley and the fourth pulley are connected through a fourth transmission belt; the fifth pulley is coaxially arranged with the fourth pulley, and the fifth pulley is connected to the second drive device through a fifth transmission belt;

[0023] Both ends of the third support drive rod assembly and the fourth support drive rod assembly are respectively slidably connected to the first slide rod and the second slide rod on the support frame, and one end of the third support drive rod assembly is connected to the upper section of the fourth transmission belt, and one end of the fourth support drive rod assembly is connected to the lower section of the fourth transmission belt.

[0024] Compared with the prior art, the plastic foam mesh sleeve packaging mechanism of the embodiment of the present invention has the following beneficial effects:

[0025] The plastic foam mesh sleeve packaging mechanism of the embodiment of the present invention can be applicable to all sizes of plastic foam mesh sleeves on the market, and only need to replace the corresponding floating drive core; it can package various items without being affected by their shapes; it is stable, efficient, and has a low economic cost.

[0026] Some additional features of the present invention can be described in the following description. By examining the following description and the corresponding drawings, or by understanding the production or operation of the embodiments, some additional features of the present invention will be obvious to those skilled in the art. The features disclosed in the present invention can be achieved and attained by practicing or using various methods, means, and combinations of the specific embodiments described below. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present invention and form a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute a limitation to the present invention. In each figure, the same reference numerals represent the same components. Among them,

[0028] Figure 1 is a schematic structural diagram of a plastic foam net sleeve packaging mechanism according to some embodiments of the present invention;

[0029] Figure 2 、 Figure 3 is a schematic structural diagram of the plastic foam net sleeve conveying mechanism in the plastic foam net sleeve packaging mechanism in an open state according to some embodiments of the present invention;

[0030] Figure 4 、 Figure 5 、 Figure 6 is a schematic structural diagram of the floating drive core in the plastic foam net sleeve packaging mechanism according to some embodiments of the present invention;

[0031] Figure 7 、 Figure 8 、 Figure 9 is a schematic structural diagram of the floating drive core in the plastic foam net sleeve packaging mechanism according to some other embodiments of the present invention;

[0032] Figures 10 to 18 is a schematic diagram of the process of the plastic foam net sleeve conveying mechanism in the plastic foam net sleeve packaging mechanism according to some embodiments of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] In order to enable those skilled in the art to better understand the solution of the present invention, 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. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0034] It should be noted that if terms such as "first", "second", etc. are involved in the description of the present invention in the specification, claims and the above-mentioned drawings, they are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to implement the embodiments of the present invention described herein. In addition, if terms such as "comprising", "having" and any variations thereof are involved, they are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily limit to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0035] In the present invention, if terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. are involved, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation.

[0036] Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0037] In addition, in the present invention, if terms such as "installed", "set up", "provided with", "connected", "linked", "socketed", etc. are involved, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] It should be noted that, without conflict, the embodiments and features in 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 drawings and in combination with the embodiments.

[0039] An embodiment of the present invention discloses a plastic foamed mesh sleeve packaging mechanism.

[0040] As Figure 1 shown, the plastic foamed mesh sleeve packaging mechanism may include a support frame, a plastic foamed mesh sleeve conveying mechanism and a cutting mechanism.

[0041] Among them, as Figures 1 to 3 shown, the support frame includes a first support member 110, a second support member 120, a third support member 130, and a fourth support member 140. The first support member 110 and the second support member 120 are arranged oppositely. Both ends of the third support member 130 and the fourth support member 140 are respectively connected to the first support member 110 and the second support member 120. A first sliding rod 150 and a second sliding rod 160 are respectively arranged between both ends of the first support member 110 and the second support member 120. A third sliding rod 170 and a fourth sliding rod 180 are respectively arranged between both ends of the third support member 130 and the fourth support member 140.

[0042] Among them, as Figures 1 to 3 shown, the plastic foam mesh sleeve conveying mechanism includes a first support transmission rod assembly 210, a second support transmission rod assembly 220, a third support transmission rod assembly 230, a fourth support transmission rod assembly 240, and a first floating transmission core 250.

[0043] The first support transmission rod assembly 210 and the second support transmission rod assembly 220 are arranged oppositely and parallelly, and are arranged on the support frame in a manner that can move towards or away from each other along the X-axis. The third support transmission rod assembly 230 and the fourth support transmission rod assembly 240 are arranged oppositely and parallelly below the first support transmission rod assembly 210 and the second support transmission rod assembly 220, and are arranged on the support frame in a manner that can move towards or away from each other along the Y-axis.

[0044] Exemplarily, the first support transmission rod assembly 210 includes a first mounting member 211, a first support transmission rod 212, and a first driving motor 213. The first support transmission rod 212 is rotatably arranged on the first mounting member 211. The first driving motor 213 is arranged on the first mounting member 211 and is in transmission connection with the first support transmission rod 212. Both ends of the first mounting member 211 are respectively slidably connected to the support frame. Specifically, both ends of the first mounting member 211 are respectively slidably connected to the third sliding rod 170 and the fourth sliding rod 180 on the support frame.

[0045] The second support transmission rod assembly 220 includes a second mounting member 221, a second support transmission rod 222, and a second driving motor 223. The second support transmission rod 222 is rotatably arranged on the second mounting member 221. The second driving motor 223 is arranged on the second mounting member 221 and is in transmission connection with the second support transmission rod 222. Both ends of the second mounting member 221 are respectively slidably connected to the support frame. Specifically, both ends of the second mounting member 221 are respectively slidably connected to the third sliding rod 170 and the fourth sliding rod 180 on the support frame.

[0046] Moreover, the first support drive rod assembly 210 and the second support drive rod assembly 220 are connected to the first drive device through a first transmission mechanism.

[0047] Exemplarily, the first transmission mechanism includes a first transmission rod 310, a first pulley 320, and a second pulley 330 provided on the support frame. The first pulley 320 is connected to one end of the first transmission rod 310 through a first transmission belt 340. The second pulley 330 is connected to the other end of the first transmission rod 310 through a second transmission belt 350. The first transmission rod 310 is connected to the first drive device through a third transmission belt. Preferably, the first drive device is a drive motor.

[0048] Both ends of the first support drive rod assembly 210 are respectively connected to the lower segments of the first transmission belt 340 and the second transmission belt 350. Both ends of the second support drive rod assembly 220 are respectively connected to the upper segments of the first transmission belt 340 and the second transmission belt 350. Thereby, the first support drive rod assembly 210 and the second support drive rod assembly 220 can move towards or away from each other along the X-axis.

[0049] The third support drive rod assembly 230 includes a third mounting member 231, a third support drive rod 232, and a third drive motor 233. The third support drive rod 232 is rotatably provided on the third mounting member 231. The third drive motor 233 is provided on the third mounting member 231 and is in transmission connection with the third support drive rod 232. Both ends of the third mounting member 231 are respectively slidably connected to the support frame. Specifically, both ends of the third mounting member 231 are respectively slidably connected to the first slide rod 150 and the second slide rod 160 on the support frame.

[0050] The fourth support drive rod assembly 240 includes a fourth mounting member 241, a fourth support drive rod 242, and a fourth drive motor 243. The fourth support drive rod 242 is rotatably provided on the fourth mounting member 241. The fourth drive motor 243 is provided on the fourth mounting member 241 and is in transmission connection with the fourth support drive rod 242. Both ends of the fourth mounting member 241 are respectively slidably connected to the support frame. Specifically, both ends of the fourth mounting member 241 are respectively slidably connected to the first slide rod 150 and the second slide rod 160 on the support frame.

[0051] Moreover, the third support drive rod assembly 230 and the fourth support drive rod assembly 240 are connected to the second drive device 600 through a second transmission mechanism.

[0052] Exemplarily, the second transmission mechanism includes a third pulley 510, a fourth pulley 520, and a fifth pulley 530 disposed on the support frame. The third pulley 510 and the fourth pulley 520 are connected by a fourth transmission belt 540. The fifth pulley 530 is coaxially disposed with the fourth pulley 520, and the fifth pulley 530 is connected to the second driving device 600 by a fifth transmission belt. Preferably, the second driving device 600 is a driving motor.

[0053] Both ends of the third support transmission rod assembly 230 and the fourth support transmission rod assembly 240 are respectively slidably connected to the first sliding rod 150 and the second sliding rod 160 on the support frame, and one end of the third support transmission rod assembly 230 is connected to the lower section of the fourth transmission belt 540, and one end of the fourth support transmission rod assembly 240 is connected to the upper section of the fourth transmission belt 540. Thus, the third support transmission rod assembly 230 and the fourth support transmission rod assembly 240 can move toward or away from each other along the Y axis.

[0054] Wherein, the first floating transmission core 250 is disposed between the first support transmission rod assembly 210, the second support transmission rod assembly 220, the third support transmission rod assembly 230, and the fourth support transmission rod assembly 240.

[0055] Exemplarily, as Figure 4 , Figure 5 , Figure 6 shown, the floating transmission core 250 may include a core body 2510 and an expansion member 2520.

[0056] Wherein, the core body 2510 has a cylindrical structure. Exemplarily, the core body 2510 may include a columnar portion 2511 and a pointed end portion 2512 formed at the bottom end of the columnar portion 2511. Preferably, the pointed end portion 2512 may have a conical structure, a frustum of a cone structure (as Figures 4 to 6 shown), a spherical crown structure, or a wedge structure (as Figures 7 to 9 shown).

[0057] Wherein, the expansion member 2520 has a frustum of a cone structure. The diameter of the core body 2510 is equal to the diameter of the small cross-section end of the expansion member 2520. In the installed state, the small cross-section end of the expansion member 2520 having a frustum of a cone structure is disposed at the top end of the core body 2510 having a cylindrical structure. Specifically, the small cross-section end of the expansion member 2520 is disposed at the top end of the columnar portion 2511, so that the expansion member 2520 forms a convex platform with a gradually increasing diameter at the top end of the core body 2510.

[0058] Thus, the floating transmission core 250 forms a structure with a pointed front, a straight middle, and a conical rear, which can conveniently expand the flattened plastic foam net sleeve to a size slightly larger than the packaged object during the conveying process, so that the packaged object can be quickly and conveniently packaged.

[0059] Exemplarily, the core 2510 and the expander 2520 can be fixedly connected by screws. In some embodiments, the core 2510 and the expander 2520 can also adopt an integral structure. For example, the core 2510 and the expander 2520 can be made by integral molding.

[0060] Preferably, the core 2510 and the expander 2520 can be made of materials such as plastics that meet the friction performance requirements.

[0061] By providing a pointed end portion 2512 at the bottom end of the columnar portion 2511, it is convenient for the core 2510 to be inserted from the opening of the plastic foam sleeve, and it is also convenient for the loading and conveying of the plastic foam sleeve. Since the rolled plastic foam sleeve is flat at the output end, the pointed end portion 2512 (such as a wedge-shaped structure) is more conducive to the shaping of the plastic foam sleeve. In some embodiments, a hook can also be connected to the center of the rear end (the large cross-section end of the expander 2520) of the floating drive core to facilitate the loading of the floating drive core.

[0062] By arranging the small cross-section end of the expander 2520 having a frustum of a cone shape at the top end of the core 2510 having a cylindrical shape, a convex platform with a gradually increasing diameter is formed at the top end of the core 2510 by the expander 2520. On the one hand, the expander 2520 having a frustum of a cone shape can support the entire floating drive core; on the other hand, the expander 2520 having a frustum of a cone shape is also convenient for the conveying of the plastic foam sleeve, and the rear-end conical structure makes the finally output shape of the plastic foam sleeve an enlarged circle. In some embodiments, a section of cylinder can be provided at the large cross-section end of the expander 2520 having a frustum of a cone shape, so that the end of the rear-end cone is a cylinder, which can make the finally output plastic foam sleeve into a vertically upward circular tube shape to facilitate the subsequent packaging of products.

[0063] Further, in some embodiments, a receiving groove 2521 is provided at the large cross-section end of the expander 2520, as Figure 4 shown. Since some of the objects to be packaged (such as apples, pears, etc. in fruits) have a shape that is thick in the middle and thin at both ends, when the plastic foam sleeve is conveyed upward, it will first touch the lower part of such objects. Because the lower part is smaller, the plastic foam sleeve is blocked by the larger middle part of the object and cannot be conveyed. By providing the receiving groove 2521 at the large cross-section end of the expander 2520, these objects are placed in the receiving groove 2521 during packaging, thereby solving the problem that the plastic foam sleeve cannot be conveyed when packaging the above-mentioned objects to be packaged (such as apples, pears, etc. in fruits).

[0064] Preferably, the depth of the receiving groove 2521 can be set such that the distance by which the thickest position in the middle of the item is higher than the end face of the end (large cross-section end) of the floating drive core after placing the item is less than 10 mm, so as to achieve a better packaging effect.

[0065] Furthermore, in some embodiments, a cavity 2513 is provided in the core body 2510, as Figures 7 to 9 shown. Exemplarily, the cavity 2513 can be opened at both ends or the central position of the core body 2510 to reduce the weight.

[0066] Furthermore, in some embodiments, a counterweight is provided in the cavity 2513 so that the entire floating drive core has a reasonable weight, thereby achieving stable transmission.

[0067] Since the plastic foam mesh sleeve 40 is clamped between the first support drive rod 212, the second support drive rod 222, the third support drive rod 232, and the fourth support drive rod 242 and the floating drive core 250 for conveying, the direct power source is mainly the frictional force between the support drive rod and the plastic foam mesh sleeve 40. The magnitude of the frictional force depends on the magnitude of the pressure between the support drive rod and the plastic foam mesh sleeve. The magnitude of the pressure is mainly the clamping force of the support drive rod, the pressure at the support position of the floating drive core, the force for the plastic foam mesh sleeve to recover from the compressed state, etc. Among them, the pressure at the conical surface (the conical surface of the expansion member 2520) of the floating drive core will change greatly with the displacement of the floating drive core in the vertical direction. Especially when there is a large enough displacement to break away from the plastic foam mesh sleeve, the pressure applied to the plastic foam mesh sleeve will disappear, greatly reducing the conveying frictional force of the plastic foam mesh sleeve, and situations such as inability to convey or unsmooth conveying will occur. In order to make the conveying of the plastic foam mesh sleeve more stable, the floating drive core must not have a large displacement in the vertical direction.

[0068] In addition, during the conveying process of the plastic foam mesh sleeve, the floating drive core 250 will continuously receive an upward frictional traction force. The problem can be solved by increasing the weight of the floating drive core 250, but if the weight of the floating drive core 250 is too large, it will greatly increase the frictional force at the support surface of the floating drive core 250, making the conveying of the plastic foam mesh sleeve difficult. To solve this problem, first clamping grooves 2514 can be respectively provided at corresponding positions on the left and right sides of the core body 2510. Second clamping grooves 2515 are respectively provided at corresponding positions on the front and rear sides of the core body 2510. So that the support drive rod can be snapped into the floating drive core, making the floating drive core restricted by the position of the support drive rod, and finally making the floating drive core have no large displacement in the vertical direction, thus avoiding accidents such as collision interference with the cutting mechanism during the process of falling back in the vertical direction, and ensuring the safety when the plastic foam mesh sleeve is cut.

[0069] Therefore, in some embodiments, asFigures 4 to 9 As shown, first clamping grooves 2514 are respectively arranged at corresponding positions on the left and right sides of the core body 2510. Second clamping grooves 2515 are respectively arranged at corresponding positions on the front and back sides of the core body 2510.

[0070] In the installed state, the first support transmission rod 212 and the second support transmission rod 222 are symmetrically arranged in the first clamping grooves 2514 on the left and right sides of the core body 2510 in the floating transmission core 250; the third support transmission rod 232 and the fourth support transmission rod 242 are symmetrically arranged in the second clamping grooves 2515 on the front and back sides of the core body 2510 in the floating transmission core 250, as Figure 11 、 Figure 12 shown. This enables the first support transmission rod 212 and the second support transmission rod 222, and the third support transmission rod 232 and the fourth support transmission rod 242 to form a double-parallel support transmission rod structure in a horizontal double row, ensuring that the floating transmission core 250 is always in the central position. In some embodiments, the floating transmission core 250 can also adopt other support methods, such as longitudinal support, multi-row and multi-rod support, etc.

[0071] Preferably, the cross-sections of the first clamping groove and the second clamping groove are smooth curves close to arcs related to the first support transmission rod, the second support transmission rod, the third support transmission rod, the fourth support transmission rod, and the thickness of the plastic foam sleeve, so as to make the conveying of the plastic foam sleeve more smooth. And the distance between the support transmission rod and the first clamping groove and the second clamping groove can be synchronously adjusted to achieve different transmission efficiencies and different packaging effects. In addition, the first clamping groove and the second clamping groove are in a straight-line arrangement on both sides, and are used for transmission in cooperation with two parallel support transmission rods. Or, the first clamping groove and the second clamping groove are in a circular ring shape, and are used for transmission in cooperation with two groups of V-shaped arranged support transmission rods. Among them, the straight-line structure on both sides is the simplest. The clamping grooves can also be more than two groups, and two groups are the simplest structures that can stably clamp the arc transmission core and perform transmission.

[0072] Furthermore, in some embodiments, in order to reduce the friction between the plastic foam sleeve 40 and the floating transmission core 250, a plurality of rolling elements 2516 can be embedded on the surface of the core body 2510 and / or the expansion member 2520; such as idler rollers and idler balls, etc., as Figures 7 to 9 shown. The setting of the rolling elements can greatly improve the smoothness of the conveying of the plastic foam sleeve, and at the same time make the plastic foam sleeve less likely to be damaged during the conveying process. Or, the surfaces of the core body, the rolling elements, and / or the expansion member are surface-treated (such as sandblasting treatment) to reduce the friction coefficient with the plastic foam sleeve.

[0073] Moreover, since the first support drive rod 212, the second support drive rod 222, the third support drive rod 232, and the fourth support drive rod 242 can be opened in all directions to facilitate the loading of the plastic foam sleeve. During operation, the distances between the first support drive rod 212, the second support drive rod 222, the third support drive rod 232, the fourth support drive rod 242 and the suspension drive core 250 can be adjusted, thereby changing the magnitude of the frictional driving force to achieve stable transmission.

[0074] In addition, the friction coefficient between the surfaces of the first support drive rod 212, the second support drive rod 222, the third support drive rod 232, the fourth support drive rod 242 and the plastic foam sleeve 40 directly affects the magnitude of the conveying frictional force. To make the conveying speed faster and thus improve the efficiency, the friction coefficient between the surfaces of the first support drive rod 212, the second support drive rod 222, the third support drive rod 232, the fourth support drive rod 242 and the plastic foam sleeve 40 should be relatively high, which can be achieved by performing special treatment on the surfaces of the support drive rods. Exemplarily, surface structures for increasing the friction coefficient (such as adding friction teeth, surface coatings or films, etc.) can be provided on the surfaces of the first support drive rod 212, the second support drive rod 222, the third support drive rod 232, and the fourth support drive rod 242.

[0075] Among them, the cutting mechanism is an electric wire cutting mechanism, a shearing tool cutting mechanism, a rotary tool cutting mechanism or a laser cutting mechanism.

[0076] In this embodiment, the cutting mechanism adopted is an electric wire cutting mechanism. The electric wire cutting mechanism is movably arranged on the support frame and is located above the plastic foam sleeve conveying mechanism, and the cutting mechanism is connected to the third driving device through the third transmission mechanism.

[0077] As Figure 1 shown, the electric wire cutting mechanism includes an electric wire 710, a first sliding member 720 and a second sliding member 730.

[0078] The first sliding member 720 and the second sliding member 730 are respectively slidably arranged on the support frame. Moreover, the first sliding member 720 is connected to a driving motor through a first belt transmission mechanism 740; the second sliding member 730 is connected to a driving motor through a second belt transmission mechanism 750. One end of the electric wire 710 is connected to the first sliding member 720, and the other end is connected to the second sliding member 730. So that under the drive of the driving motor, the first sliding member 720 and the second sliding member 730 can drive the electric wire 710 to move.

[0079] The working principle and process of the plastic foam sleeve packaging mechanism according to the embodiment of the present invention are as follows:

[0080] Start the first driving device, and through the first transmission mechanism, move the first support transmission rod assembly 210 and the second support transmission rod assembly 220 away from each other. At the same time, start the second driving device, and through the second transmission mechanism, move the third support transmission rod assembly 230 and the fourth support transmission rod assembly 240 away from each other, so as to open 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 around the suspension transmission core 250, and take out the suspension transmission core 250;

[0081] Lead out the plastic foam sleeve 40 from the sleeve reel, pass through the working area of the suspension transmission core 250, and then put the plastic foam sleeve 40 into the suspension transmission core 250 from the opening until the end face of the plastic foam sleeve 40 is flush with the end face of the conical end (large cross-section end) of the suspension transmission core 250;

[0082] Then place the suspension transmission core 250 back to the working position, start the first driving device, and through the first transmission mechanism, move the first support transmission rod assembly 210 and the second support transmission rod assembly 220 towards each other. At the same time, start the second driving device, and through the second transmission mechanism, move the third support transmission rod assembly 230 and the fourth support transmission rod assembly 240 towards each other, 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 clamp the suspension transmission core 250 to the required tightness, such as Figures 10 to 12 shown;

[0083] Adsorb the object to be packaged 50 to the packaging height above the suspension transmission core 250 through the external adsorption device 60,

[0084] The first driving motor 213, the second driving motor 223, the third driving motor 233 and the fourth driving motor 243 drive 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 to rotate respectively, and output the plastic foam sleeve 40 to the outside of the top end (large cross-section end) of the suspension transmission core 250 through friction transmission, so that the plastic foam sleeve 40 wraps the surface of the object to be packaged 50, such as Figures 13 to 15 shown;

[0085] After the plastic foam sleeve 40 outputs a 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. At the same time, the cutting mechanism starts to cut the plastic foam sleeve 40 from the top end of the suspension transmission core 250, such as Figures 16 to 18 shown.

[0086] After being cut, the plastic foam sleeve 40 undergoes elastic recovery and wraps the object to be packaged 50. The object to be packaged 50 is transported to the external assembly line via the external adsorption device 60, and at the same time, a new object to be packaged is adsorbed for packaging, realizing the packaging cycle.

[0087] It should be noted that all the features disclosed in this specification, or all the steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any way.

[0088] In addition, the above specific embodiments are exemplary. Those skilled in the art can come up with various solutions inspired by the disclosed content of the present invention, and these solutions also fall within the scope of the disclosure of the present invention and the protection scope of the present invention. Those skilled in the art should understand that the description of the present invention and its drawings are illustrative and do not constitute a limitation to the claims. The protection scope of the present invention is defined by the claims and their equivalents.

Claims

1. A plastic foamed net sleeve packaging mechanism, characterized in that, The plastic foam net sleeve packaging mechanism includes a support frame, a plastic foam net sleeve conveying mechanism, and a cutting mechanism; The plastic foam net sleeve conveying mechanism includes a first support transmission rod assembly (210), a second support transmission rod assembly (220), a third support transmission rod assembly (230), a fourth support transmission rod assembly (240), and a first floating transmission core (250); The first support transmission rod assembly (210) and the second support transmission rod assembly (220) are arranged relatively parallel to each other and are arranged on the support frame in a manner that can move towards or away from each other along the X-axis; the third support transmission rod assembly (230) and the fourth support transmission rod assembly (240) are arranged relatively parallel to each other below the first support transmission rod assembly (210) and the second support transmission rod assembly (220), and are arranged on the support frame in a manner that can move towards or away from each other along the Y-axis; the first floating transmission core (250) is arranged between the first support transmission rod assembly (210), the second support transmission rod assembly (220), the third support transmission rod assembly (230), and the fourth support transmission rod assembly (240); and, the first support transmission rod assembly (210) and the second support transmission rod assembly (220) are connected to a first driving device through a first transmission mechanism; the third support transmission rod assembly (230) and the fourth support transmission rod assembly (240) are connected to a second driving device through a second transmission mechanism; The cutting mechanism is movably arranged on the support frame and is located above the plastic foam net sleeve conveying mechanism, and the cutting mechanism is connected to a third driving device through a third transmission mechanism; The first floating transmission core (250) includes a core body (2510) and an expansion member (2520); The core body (2510) has a cylindrical structure; the expansion member (2520) has a frustum of a cone structure; and, the diameter of the core body (2510) is equal to the diameter of the small cross-section end of the expansion member (2520); The small cross-section end of the expansion member (2520) having a frustum of a cone structure is arranged at the top of the core body (2510) having a cylindrical structure; a pointed end portion (2512) is arranged at the bottom end of the core body (2510); The pointed end portion (2512) has a conical structure, a frustum of a cone structure, a spherical crown structure, or a wedge structure; First clamping grooves (2514) are respectively arranged at corresponding positions on the left and right sides of the core body (2510); second clamping grooves (2515) are respectively arranged at corresponding positions on the front and back sides of the core body (2510); The cross-sections of the first clamping grooves (2514) and the second clamping grooves (2515) are smooth curves close to an arc related to the size of the support transmission rod and the thickness of the plastic foam net sleeve, so that the plastic foam net sleeve can be conveyed more smoothly; and the distance between the support transmission rod and the first clamping grooves (2514) and the second clamping grooves (2515) can be adjusted synchronously to achieve different transmission efficiencies and different packaging effects; The first support drive rod assembly (210) includes a first mounting member (211), a first support drive rod (212), and a first drive motor (213); both ends of the first mounting member (211) are slidably connected to the support frame respectively; the first support drive rod (212) is rotatably arranged on the first mounting member (211); the first drive motor (213) is arranged on the first mounting member (211) and is in transmission connection with the first support drive rod (212); The second support drive rod assembly (220) includes a second mounting member (221), a second support drive rod (222), and a second drive motor (223); both ends of the second mounting member (221) are slidably connected to the support frame respectively; the second support drive rod (222) is rotatably arranged on the second mounting member (221); the second drive motor (223) is arranged on the second mounting member (221) and is in transmission connection with the second support drive rod (222); The third support drive rod assembly (230) includes a third mounting member (231), a third support drive rod (232), and a third drive motor (233); both ends of the third mounting member (231) are slidably connected to the support frame respectively; the third support drive rod (232) is rotatably arranged on the third mounting member (231); the third drive motor (233) is arranged on the third mounting member (231) and is in transmission connection with the third support drive rod (232); The fourth support drive rod assembly (240) includes a fourth mounting member (241), a fourth support drive rod (242), and a fourth drive motor (243); both ends of the fourth mounting member (241) are slidably connected to the support frame respectively; the fourth support drive rod (242) is rotatably arranged on the fourth mounting member (241); the fourth drive motor (243) is arranged on the fourth mounting member (241) and is in transmission connection with the fourth support drive rod (242).

2. The plastic foam net sleeve packaging mechanism according to claim 1, characterized in that, The first clamping groove (2514) and the second clamping groove (2515) are straight in both sides, and are driven in cooperation with two parallel support drive rods; or, the first clamping groove (2514) and the second clamping groove (2515) are circular, and are driven in cooperation with two groups of support drive rods arranged in a V-shaped row.

3. The plastic foam net sleeve packaging mechanism according to claim 1, characterized in that, A plurality of rolling elements (2516) are inlaid on the surface of the core body (2510) and / or the expansion member (2520). The arrangement of the rolling elements (2516) can greatly improve the smoothness of the conveying of the plastic foam sleeve, and at the same time make the plastic foam sleeve less likely to be damaged during the conveying process; the surfaces of the core body (2510), the rolling elements (2516) and / or the expansion member (2520) are surface-treated to reduce the friction coefficient with the plastic foam sleeve.

4. The plastic foamed net sleeve packaging mechanism according to claim 1, characterized in that, A receiving groove (2521) is provided at the large cross-section end of the expansion member (2520).

5. The plastic foam net sleeve packaging mechanism according to claim 1, characterized in that, The support frame includes a first support member (110), a second support member (120), a third support member (130), and a fourth support member (140); The first support member (110) and the second support member (120) are arranged oppositely; both ends of the third support member (130) and the fourth support member (140) are respectively connected to the first support member (110) and the second support member (120); And, a first slide bar (150) and a second slide bar (160) are respectively arranged between both ends of the first support member (110) and the second support member (120); A third slide bar (170) and a fourth slide bar (180) are respectively arranged between both ends of the third support member (130) and the fourth support member (140).

6. The plastic foamed mesh sleeve packaging mechanism according to claim 1, characterized in that, A surface structure for increasing the friction coefficient is provided on the surfaces of the first support drive rod (212), the second support drive rod (222), the third support drive rod (232), and the fourth support drive rod (242).

7. The plastic foam net sleeve packaging mechanism according to claim 1, characterized in that, The cutting mechanism is an electric wire cutting mechanism, a shearing tool cutting mechanism, a rotary tool cutting mechanism, or a laser cutting mechanism.

8. The plastic foam net sleeve packaging mechanism according to claim 1, wherein The first transmission mechanism includes a first transmission rod (310), a first belt pulley (320), and a second belt pulley (330) provided on the support frame; the first belt pulley (320) is connected to one end of the first transmission rod (310) through a first transmission belt (340); the second belt pulley (330) is connected to the other end of the first transmission rod (310) through a second transmission belt (350); the first transmission rod (310) is connected to the first driving device through a third transmission belt; Both ends of the first support drive rod assembly (210) are respectively connected to the lower segments of the first transmission belt (340) and the second transmission belt (350); both ends of the second support drive rod assembly (220) are respectively connected to the upper segments of the first transmission belt (340) and the second transmission belt (350); The second transmission mechanism includes a third belt pulley (510), a fourth belt pulley (520), and a fifth belt pulley (530) provided on the support frame; the third belt pulley (510) and the fourth belt pulley (520) are connected through a fourth transmission belt (540); the fifth belt pulley (530) is coaxially arranged with the fourth belt pulley (520), and the fifth belt pulley (530) is connected to the second driving device through a fifth transmission belt; Both ends of the third support drive rod assembly (230) and the fourth support drive rod assembly (240) are respectively slidably connected to the first slide bar (150) and the second slide bar (160) on the support frame, and one end of the third support drive rod assembly (230) is connected to the lower segment of the fourth transmission belt (540), and one end of the fourth support drive rod assembly (240) is connected to the upper segment of the fourth transmission belt (540).

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