A paperboard forming compression roller with integrated glue attachment

Abstract

The utility model relates to a paperboard forming compression roller of integrated adhesive structure, including two roll bodies that construct out corrugated forming gap in cooperation, the radial inner annular surface of the hollow through cavity defined in the roll body is inserted with a plurality of point glue plug head mechanisms in annular surface array, wherein, the roll body includes corrugated roll cover that can bend and define the corrugated shape of the corrugated core board, thick wall pipe body is inserted in the corrugated roll cover and cooperates with the corrugated roll cover and defines ring body gap, and end face ring plate can be connected with the both ends of the corrugated roll cover, thick wall pipe body and cooperates to form the ring body cavity of conveying glue solution, the inner wall surface of the thick wall pipe body is detachably installed with the point glue plug head mechanism that can penetrate the corrugated roll cover in the mode of annular surface array distribution, the utility model can process corrugated core board into corrugated shape at the same time, and the wave top upper surface and wave bottom lower surface of paperboard are point glued and coated to realize corrugated core board forming and glue coating treatment simultaneously.

Description

Technical Field

[0001] This utility model relates to the technical field of corrugated core board processing equipment, and in particular to a cardboard forming roller with an integrated adhesive structure. Background Technology

[0002] In daily life, cardboard boxes are widely used as packaging products. Cardboard boxes are assembled from cardboard panels, typically made from corrugated cardboard. When manufacturing cardboard boxes of specific sizes, the corrugated cardboard needs to be die-cut to obtain panels with specific shapes and dimensions. Corrugated cardboard is a multi-layered bonded structure, consisting of at least one corrugated core board and two surface layers laminated to it. It possesses high mechanical strength, capable of withstanding the impact of collisions and drops during handling. Its production process requires the use of adhesives to bond the layers together, and suitable pressing equipment is used to press the multiple layers together during the bonding process. In particular, the pressing production line usually requires pre-processing the flat core board to produce a corrugated core board with a corrugated cross-section.

[0003] In the corrugated cardboard lamination process, operators manually apply glue to the cardboard surface. However, this method is not only inefficient and labor-intensive, but the volatile glue molecules can also harm the health of operators. Although mechanical glue coating structures have been developed to reduce manual labor and improve coating uniformity and bonding effect, conventional coating methods still involve full coverage of the bonding surfaces of the surface cardboard and / or both surfaces of the interlayer cardboard. In reality, the surface cardboard and interlayer cardboard are laminated using intermittent bonding, not full-surface contact. Therefore, the glue in the unbonded areas cannot function, resulting in high glue consumption and significant waste. Actual glue coating processes show that only part of the upper surface of the corrugated interlayer cardboard and the lower surface of the corrugated corrugated cardboard contact and bond with the surface cardboard, forming a composite corrugated cardboard with gaps. During the lamination process, the actual contact points of the sandwich board are mainly concentrated in the crest and trough areas of its wavy profile. Therefore, directly applying glue to the surface of the sandwich board will result in a significant amount of glue being wasted because it does not effectively contact the board. In particular, existing corrugated board processing equipment typically uses two relatively independent processes—lamination and gluing—to form and glue the corrugated core board separately. This extends the overall processing time and reduces processing efficiency, while also resulting in a larger space requirement for the equipment. Utility Model Content

[0004] The purpose of this invention is to provide a cardboard forming roller with an integrated adhesive structure that can simultaneously apply glue to the upper surface of the corrugated core board and the lower surface of the corrugated core board while processing the corrugated core board into a corrugated shape, thereby achieving both corrugated core board forming and glue application. This solves the problems of existing manual glue application methods, which result in large amounts of glue waste and harm to the health of operators. Furthermore, existing processing equipment requires two separate machines to complete the corrugated core board forming and glue application operations, leading to long processing times, low overall processing efficiency, and large equipment space requirements.

[0005] The technical solution adopted by this utility model is as follows: a cardboard forming pressure roller with an integrated adhesive structure, comprising two roller bodies that cooperate to form a corrugated forming gap, and a plurality of adhesive plug mechanisms are inserted in an annular array on the radial inner annular surface of the hollow cavity defined by the roller bodies. The roller body includes a corrugated roller sleeve that can be bent to define the corrugated shape of the corrugated core board, a thick-walled tube body that is coaxially inserted in the corrugated roller sleeve and cooperates with the corrugated roller sleeve to define the annular gap, and an end face annular plate that can be connected to both ends of the corrugated roller sleeve and the thick-walled tube body to form an annular cavity for conveying adhesive. Adhesive plug mechanisms that can penetrate the corrugated roller sleeve are detachably installed on the inner wall surface of the thick-walled tube body in an annular array.

[0006] According to a preferred embodiment, the surface of the corrugated roller sleeve is circumferentially provided with corrugated tops and corrugated grooves in a manner that defines the pulsator profile of the corrugated core board, and a plurality of glue discharge holes are axially spaced in the strip-shaped arc-shaped groove bottom area of ​​the corrugated groove, and the insertion front end of the glue dispensing plug mechanism is inserted into the glue discharge holes in a manner that extends retractably into the groove cavity of the corrugated groove.

[0007] According to a preferred embodiment, a plurality of stepped grooves for inserting the dispensing plug mechanism are arranged in a circumferential array on the thick-walled tube in a manner coaxial with the dispensing hole, wherein a first inserting ring groove and a second inserting ring groove are coaxially formed on the step surface of the stepped groove.

[0008] According to a preferred embodiment, the dispensing plug mechanism includes a plug post, a guide post, a positioning sleeve, an elastic silicone disc, a clamping and limiting nut, a guide cap, and an elastic reset member. The guide post is coaxially connected to the radial inner end of the plug post, and a positioning sleeve is fitted onto one end of the plug post near the guide post. An elastic silicone disc is fitted onto the guide post, abutting against the positioning sleeve, and the guide post, through a threaded clamping and limiting nut, aligns and clamps the elastic silicone disc with the positioning sleeve. A guide cap, defining the direction of movement, is also fitted onto the guide post, and an elastic reset member, defining its working position, is fitted onto the column of the guide post located between the guide cap and the clamping and limiting nut.

[0009] According to a preferred embodiment, the plug includes a connecting post located in the annular cavity, a frustum plug connected to the radially outer end of the connecting post, and a pressing and adjusting end connected to the frustum plug and extending into the groove cavity of the rib.

[0010] According to a preferred embodiment, the positioning sleeve has a third inserting ring groove on the surface facing the elastic silicone disc.

[0011] According to a preferred embodiment, a first annular positioning protrusion, a second annular positioning protrusion, and a third annular positioning protrusion are respectively formed on the radial outer surface of the elastic silicone disc to fit the first, second, and third inserting annular grooves; a fourth inserting annular groove is also formed on the radial inner surface of the elastic silicone disc.

[0012] According to a preferred embodiment, a central guide through hole for slidingly inserting the guide post is provided on the end face of the guide cap, and a fourth annular positioning protrusion adapted to the fourth embedding annular groove is provided on the annular end face of the guide cap that contacts the elastic silicone disc.

[0013] The beneficial effects of this utility model are:

[0014] This application combines a dispensing plug mechanism with a roller body, allowing the roller body to simultaneously open the glue discharge holes on the upper and lower surfaces of the corrugated sections of the corrugated board during the bending and forming process. This is achieved by pressing the dispensing plug mechanism against the corrugated board, allowing the glue discharged under pressure difference to adhere to the upper and lower surfaces of the corrugated board in a dotted manner. This enables the formed corrugated core board to be directly pressed with two flat boards without additional glue application, reducing processing time and improving efficiency. It also reduces equipment space requirements, enabling continuous processing. Furthermore, by replacing coating with dispensing, it ensures effective glue application to the designated bonding area while reducing glue consumption by replacing top coating. This lowers production costs and reduces the risk of harm to users from the release of toxic chemical components from continuously evaporating glue molecules during use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a preferred integrated adhesive-coated paperboard forming roller proposed in this utility model;

[0016] Figure 2 This is a cross-sectional schematic diagram of a preferred integrated adhesive-coated paperboard forming roller proposed in this utility model;

[0017] Figure 3 This is a partially enlarged structural schematic diagram of the glue dispensing plug mechanism of a preferred integrated glue-applying structure cardboard forming pressure roller proposed in this utility model.

[0018] Figure 4 This is a partially exploded view of a preferred integrated adhesive structure for the dispensing plug mechanism of a cardboard forming roller proposed in this utility model.

[0019] Figure 5 This is a schematic diagram of the structure of a preferred integrated adhesive-coated paperboard forming roller proposed in this utility model during the forming of a corrugated core board;

[0020] Figure 6 This is an axial schematic diagram of a preferred integrated adhesive-coated paperboard forming roller proposed in this utility model. Detailed Implementation

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] The technical solutions provided by this utility model will be described in detail below with reference to the accompanying drawings and through embodiments. It should be noted that the descriptions of these embodiments are for the purpose of helping to understand this utility model, but do not constitute a limitation thereof. In some examples, because some implementation methods belong to existing or conventional technology, they are not described or are not described in detail. The serial numbers assigned to components in this document, such as "first," "second," etc., are only used to distinguish the described objects and do not have any sequential or technical meaning.

[0023] The following is a detailed explanation with reference to the accompanying drawings.

[0024] Example 1

[0025] This application provides a paperboard forming roller with an integrated adhesive structure, which includes a roller body 1 and an adhesive dispensing plug mechanism 2.

[0026] according to Figure 1-6 In one specific embodiment, two rollers 1 mesh in a gear-like manner, forming a corrugated forming gap adapted to the cardboard in the rotational gap between the two rollers 1, thereby bending and pressing the flat cardboard into a corrugated profile to form a corrugated core board. A plurality of glue-filling plug mechanisms 2 are annularly arranged on the radial inner annular surface of the hollow cavity defined by the rollers 1. The rollers 1 include a corrugated roller sleeve 11 capable of bending to define the corrugated shape of the corrugated core board, a thick-walled tube 12 coaxially inserted in the corrugated roller sleeve 11 and cooperating with the corrugated roller sleeve 11 to define the annular gap, and an end face annular plate 13 capable of connecting to both ends of the corrugated roller sleeve 11 and the thick-walled tube 12 to form an annular cavity for conveying glue. A dispensing plug mechanism 2, which can penetrate the corrugated roller sleeve 11, is detachably installed on the inner wall of the thick-walled tube 12 in a ring-shaped array. This mechanism limits the amount of adhesive that can be adjusted to overflow onto the surface of the corrugated roller sleeve 11 and adhere to the corrugated core board in the part of the flute groove area that is in contact with the corrugated roller sleeve 11 during the forming process. This application combines the dispensing plug mechanism 2 with the roller body 1, so that during the bending and forming of the cardboard, the roller body 1 can simultaneously allow the upper surface of the corrugated top and the lower surface of the corrugated bottom of the cardboard with a wavy profile to be opened through the glue discharge hole 113 by pressing against the dispensing plug mechanism 2. This allows the glue discharged under the pressure difference to adhere to the upper surface of the corrugated top and the lower surface of the cardboard in a dotted manner, so that the formed corrugated core board can be directly pressed with two flat boards without additional glue application. This reduces the processing time of corrugated cardboard and improves processing efficiency, reduces the space occupation of equipment, and realizes continuous processing. Furthermore, by using dispensing instead of coating, it ensures effective glue application to the designated bonding area, while using dispensing instead of top coating to reduce the amount of glue used, thereby reducing production costs and reducing the harm to users caused by the continuous volatilization of glue molecules during use.

[0027] Preferably, the corrugated roller sleeve 11, the thick-walled tube body 12, and the end face ring plate 13 can be assembled seamlessly by welding or other integral connection methods. Preferably, the surface of the corrugated roller sleeve 11 is provided with circumferentially spaced rib tops 111 and rib grooves 112 in a manner that defines the concave outline of the corrugated core board. More preferably, a plurality of glue discharge holes 113 are provided axially spaced within the recessed, low-positioned, strip-shaped arcuate groove bottom region of the rib groove 112. More preferably, the insertion front end of the glue dispensing plug mechanism 2 extends retractably into the groove cavity of the rib groove 112 to plug the glue discharge holes 113. Preferably, a plurality of stepped groove holes 121 for inserting the glue dispensing plug mechanism 2 are provided circumferentially in a manner coaxial with the glue discharge holes 113 on the tube body of the thick-walled tube body 12. More preferably, a first inserting ring groove 122 and a second inserting ring groove 123 are coaxially formed on the stepped surface of the stepped groove hole 121, and a connecting internal thread is also provided on the large hole ring surface of the stepped groove hole 121. The glue dispensing plug mechanism 2, which is firmly inserted in the stepped groove hole 121, can retractably seal the glue discharge hole 113. Thus, when the cardboard is inserted into the flute 112, the cardboard that is not completely in contact with the flute 112 forces the glue dispensing plug mechanism to retract, thereby opening the glue discharge hole 113. The pressurized glue is discharged from the glue discharge hole 113 and adheres to the surface of the cardboard near the bottom of the flute 112. This allows the corrugated core board to simultaneously complete the interval glue dispensing treatment on the upper surface of the wave crest and the lower surface of the wave bottom of the formed wavy board during the bending and forming process. This achieves the simultaneous execution of bending and forming and glue application, integrating and completing the two processing steps at the same time. This reduces the occupation of additional equipment and the introduction of processing steps, thereby improving the overall processing efficiency.

[0028] Preferably, the dispensing plug mechanism 2 includes a plug post 21, a guide post 22, a positioning sleeve 23, an elastic silicone disc 24, a clamping and limiting nut 25, a guide cap 26, and an elastic reset member 27. Preferably, the radial inner end of the plug post 21 is coaxially connected to the guide post 22 in an integrally formed manner. More preferably, the positioning sleeve 23 is integrally fitted at the end of the plug post 21 near the guide post 22. Preferably, the guide post 22 is fitted with an elastic silicone disc 24 that can abut against the positioning sleeve 23. Specifically, the guide post 22 aligns and clamps the elastic silicone disc 24 with the positioning sleeve 23 through a threaded clamping and limiting nut 25. Preferably, the guide cap 26, which can limit the direction of movement, is also fitted on the guide post 22. Preferably, the elastic reset member 27, which limits the working position, is fitted on the column of the guide post 22 located between the guide cap 26 and the clamping and limiting nut 25. Preferably, the elastic reset member 27 can be a spring body. Initially, it is not compressed; when the plug post 21 retracts, the spring reset member 27 is compressed synchronously. The elastic silicone disc 24 provided in this application can form an elastic separator, which can deform synchronously with the extension and retraction of the plug post 21. While ensuring the isolation of the stepped groove hole 121, it can also provide a reset force for the extension and retraction of the plug post 21, ensuring that the plug post 21, after being compressed and retracted, can effectively reset and extend after losing external force, thereby effectively sealing the discharge hole 113 again. The elastic reset member 27 provided in this application can cooperate with the elastic silicone disc 24 to provide an effective reset force. The positioning sleeve 23 and the clamping limit nut 25 provided in this application can ensure the connection stability of the plug post 21, guide post 22, and elastic silicone disc 24, thereby forming a stable elastic isolation structure with a central plug post. The guide cap 26 provided in this application can limit the position of the elastic silicone disc 24 in the stepped groove 121, so as to ensure that the deformed elastic silicone disc 24 can still effectively block the stepped groove 121.

[0029] Preferably, the plug 21 includes a connecting post 211 located in the annular cavity, a frustum plug 212 integrally formed and connected to the radially outer end of the connecting post 211, and a pressing and adjusting end 213 integrally formed and connected to the frustum plug 212 and capable of extending into the groove 112.

[0030] Preferably, the guide post 22 includes a screw section that can be threadedly connected to the clamping and limiting nut 25 and a slide section that can slide through the guide cap 26.

[0031] Preferably, the positioning sleeve 23 has a third inserting ring groove 231 on the surface of the elastic silicone disc 24.

[0032] Preferably, the elastic silicone disc 24 is guided and pressed against the stepped annular surface of the stepped groove 121 by the guide cap 26 in a manner that can separate the stepped groove 121. Preferably, a first annular positioning protrusion 241, a second annular positioning protrusion 242, and a third annular positioning protrusion 243 are respectively formed on the radial outer surface of the elastic silicone disc 24, which are adapted to the first inserting annular groove 122, the second inserting annular groove 123, and the third inserting annular groove 231. More preferably, a fourth inserting annular groove 244 is also formed on the radial inner surface of the elastic silicone disc 24. This application ensures the stability of the limiting assembly of the elastic silicone disc 24 by the appropriate cooperation of multiple inserting grooves and protrusion structures, and avoids problems such as slippage when it deforms.

[0033] Preferably, a centrally located guide through hole 261 for a sliding insert guide post 22 is provided on the end face of the guide cap 26. More preferably, a fourth annular positioning protrusion 262 adapted to the fourth inserting annular groove 244 is provided on the annular end face of the guide cap 26 where it contacts the elastic silicone disc 24. Preferably, an external thread adapted to the connecting internal thread on the large hole annular surface of the stepped groove hole 121 is also provided on the outer annular wall of the guide cap 26, so that the guide cap 26 is securely inserted into the stepped groove hole 121 by means of threaded connection, and the two effectively limit the station of the elastic silicone disc 24 by the alignment and pressing.

[0034] Preferably, a rotating hollow tube shaft is coaxially inserted into the inner sides of both ends of the thick-walled cylinder 12, and the rotating hollow tube shaft is connected to the inner wall of the hollow cavity through a number of support rods symmetrically distributed around the axis. More preferably, the two rotating hollow tube shafts are rotatably connected to the support frame, support plate seat and other structures arranged in alignment by means of bearing sets, so as to realize the suspended arrangement of the overall structure, thereby facilitating the suspended relative arrangement of the two rollers 1 in a semi-meshing state, so that the cardboard passing between the two rollers can form a corrugated profile. More preferably, the two rotating hollow tube shafts are respectively inserted and connected to the output shaft of the rotary drive motor that drives them to rotate with the rollers 1, and the glue supply pipe of the glue supply system that drives the rotary pipe joint and can continuously pressurize and input glue. The input end of the glue supply pipe on the outside of the roller 1 is connected to the glue supply system fixedly arranged on one side through the rotary pipe joint, and its output end inside the roller 1 is directly connected to the circumferential cavity through the thick-walled cylinder 12, thereby continuously pressurizing and supplying glue to the circumferential cavity. Specifically, the rotary drive motor can be a DPK-2611S servo drive motor whose rotation speed can be manually adjusted according to needs. Specifically, the glue supply system can be a thermostatic glue storage tank with a pressurized supply pump. The pressurized supply pump can be a SHINEEAST twin-screw booster pump, connected to the output port of the thermostatic glue storage tank and connected to the output pipe. It can automatically stop when the output pressure reaches the set value; and automatically restart to replenish pressure after the pressure drops, achieving "intermittent output." Its advantage is that it automatically replenishes leaked pressure, maintaining a constant circuit. A driving air pressure of 0.6-0.8 MPa is sufficient to trigger high-pressure output. Preferably, the thermostatic glue storage tank is a conventional SKE2JLC type glue storage tank, which can maintain the state of the glue through a built-in heating and stirring structure, preventing the glue from curing.

[0035] Preferably, the electrical components involved in this application, such as the servo drive motor, the pressurized supply pump, and the constant temperature storage tank, are all electrically connected to the controller and the power supply. The control method of this application is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this utility model is only used to protect the mechanical device and its mechanical structural features. Therefore, this utility model will not explain the control method and circuit connection in detail.

[0036] The surface connection method between components not explicitly specified in this application may be a detachable connection method such as conventional bolt connection or interlocking, or a fixed connection method such as welding. As these are conventional connection methods, this application will not elaborate further on this part. Specifically, the connecting ends of the assembled components all form flange structures, and the two flange structures are connected by bolts, gaskets, or other structures.

[0037] This utility model is not limited to the above-described optional embodiments. Anyone can derive other various forms of products under the guidance of this utility model. However, regardless of any changes in shape or structure, any technical solution falling within the scope of the claims of this utility model is within the protection scope of this utility model. Those skilled in the art should understand that this utility model specification and its drawings are illustrative and do not constitute a limitation on the claims. The protection scope of this utility model is defined by the claims and their equivalents. Throughout the text, features introduced by "preferred" are merely optional and should not be construed as mandatory. Therefore, the applicant reserves the right to abandon or delete relevant preferred features at any time.

Claims

1. A paperboard forming roller with an integrated adhesive structure, comprising two roller bodies (1) that cooperate to form a corrugated forming gap, characterized in that, A plurality of dispensing plug mechanisms (2) are annularly arranged on the radial inner annular surface of the hollow cavity defined in the roller body (1), wherein, The roller body (1) includes a corrugated roller sleeve (11) that can be bent to define the corrugated shape of the corrugated core board, a thick-walled tube (12) that is coaxially inserted in the corrugated roller sleeve (11) and cooperates with the corrugated roller sleeve (11) to define the annular gap, and an end face annular plate (13) that can be connected to both ends of the corrugated roller sleeve (11) and the thick-walled tube (12) to form an annular cavity for conveying adhesive liquid; A dispensing plug mechanism (2) capable of penetrating the corrugated roller sleeve (11) is detachably installed on the inner wall surface of the thick-walled tube (12) in a ring-shaped array.

2. The integrated adhesive-coated paperboard forming roller as described in claim 1, characterized in that, The surface of the corrugated roller sleeve (11) is provided with corrugated tops (111) and corrugated grooves (112) circumferentially spaced in a manner that defines the corrugated core board's corrugated profile. Furthermore, a plurality of glue discharge holes (113) are provided axially spaced within the strip-shaped arcuate groove bottom area of ​​the corrugated groove (112). The insertion tip of the dispensing plug mechanism (2) is inserted into the dispensing hole (113) in a way that extends retractably into the cavity of the groove (112).

3. The integrated adhesive-coated paperboard forming roller as described in claim 2, characterized in that, On the thick-walled tube body (12), a plurality of stepped grooves (121) for inserting the dispensing plug mechanism (2) are arranged in a circumferential array in a manner coaxial with the dispensing hole (113). A first inserting annular groove (122) and a second inserting annular groove (123) are coaxially formed on the stepped surface of the stepped groove hole (121).

4. The integrated adhesive-coated paperboard forming roller as described in claim 3, characterized in that, The dispensing plug mechanism (2) includes a plug post (21), a guide post (22), a positioning sleeve (23), an elastic silicone disc (24), a clamping and limiting nut (25), a guide cap (26), and an elastic reset component (27), wherein, The radial inner end of the plug post (21) is coaxially connected to a guide post (22), and a positioning sleeve (23) is fitted on the end of the plug post (21) near the guide post (22); The guide post (22) is fitted with an elastic silicone disc (24) that can abut against the positioning sleeve (23), and the guide post (22) is aligned and clamped with the positioning sleeve (23) by a threaded clamping nut (25). The guide post (22) is also fitted with a guide cap (26) that can limit the direction of movement, and an elastic reset member (27) that limits its working position is fitted on the post (22) between the guide cap (26) and the clamping limit nut (25).

5. The integrated adhesive-coated paperboard forming roller as described in claim 4, characterized in that, The plug (21) includes a connecting post (211) in the annular cavity, a frustum plug (212) connected to the radially outer end of the connecting post (211), and a pressing and adjusting end (213) connected to the frustum plug (212) and capable of extending into the groove (112) in the slot.

6. The integrated adhesive-coated paperboard forming roller as described in claim 5, characterized in that, The positioning sleeve (23) has a third inserting annular groove (231) on the surface facing the elastic silicone disc (24).

7. The integrated adhesive-coated paperboard forming roller as described in claim 6, characterized in that, On the radial outer surface of the elastic silicone disc (24), a first annular positioning protrusion (241), a second annular positioning protrusion (242), and a third annular positioning protrusion (243) are respectively adapted to the first embedding annular groove (122), the second embedding annular groove (123), and the third embedding annular groove (231). A fourth inserting annular groove (244) is also provided on the radial inner surface of the elastic silicone disc (24).

8. The paperboard forming roller with an integrated adhesive structure as described in claim 7, characterized in that, A central guide through hole (261) for sliding insertion of the guide post (22) is provided on the end face of the guide cap (26), and a fourth annular positioning protrusion (262) adapted to the fourth embedding annular groove (244) is provided on the annular end face of the guide cap (26) that contacts the elastic silicone disc (24).

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