Gluing device of paper box film laminating machine

Abstract

The utility model discloses a gluing device of a paper box film laminating machine, which relates to the technical field of gluing, and comprises a gluing shell, a gluing device, a film laminating device and a control device, an inclined guide plate is fixed in the cavity; an inclined guide surface is arranged on the side wall of the cavity, and an overflowing gap is reserved between the upper end of the guide surface and the lower end of the guide plate; a glue outlet is formed in the lower end of the guide surface; the bottom of the cavity is provided with a glue outlet channel communicated with the glue outlet, and a glue coating roller is arranged in the glue outlet channel; an overflow strip is arranged between the lower end of the guide surface and the glue outlet and is arranged along the length direction of the guide surface; an overflow groove is reserved between one side of the overflow strip and the lower end of the guide surface; and a heating panel is laid on the guide surface. By adopting the scheme, the temperature of the glue solution can be controlled nearby, so that the glue is not easy to cool and solidify quickly, the subsequent film bonding is not influenced, and the gluing uniformity is ensured by combining with the overflow port.

Description

Technical Field

[0001] The utility model relates to the technical field of gluing, in particular to a gluing device of a paper box laminating machine. Background Art

[0002] Carton lamination is a technology used to enhance the performance and aesthetics of cartons and is widely used in the packaging industry. Carton lamination involves bonding a thin film to the surface of a carton to improve its physical properties and visual effects.

[0003] During the laminating process for cartons, glue is usually applied to designated locations on the unfolded cardboard to facilitate film adhesion. Existing gluing equipment typically uses a glue delivery pipe to deliver liquid glue to the gluing device, where it falls onto a gluing roller, which then evenly applies glue to the designated area of ​​the cardboard. However, long-distance glue delivery results in heat loss, and during the gluing process, the glue easily cools and solidifies, even forming clots. This makes it impossible to ensure uniform gluing. Furthermore, residual glue inside the chamber can solidify and cause blockages. Utility Model Content

[0004] The utility model aims to solve the deficiencies of the prior art and to provide a gluing device for a carton laminating machine. By adopting this solution, the temperature of the glue liquid can be controlled locally, so that the glue is not easily cooled and solidified quickly, thereby not affecting the subsequent film bonding. In addition, the overflow port is combined to ensure the uniformity of the glue coating.

[0005] The utility model is achieved through the following technical solutions:

[0006] A gluing device for a carton laminating machine, comprising:

[0007] A glue coating housing, wherein the glue coating housing has a chamber inside, and a glue feed pipe is provided at the top of the chamber, penetrating the top wall of the glue coating housing, and the glue feed pipe is in communication with the chamber; an inclined guide plate is fixed in the chamber, and the guide plate is located directly below the bottom outlet of the glue feed pipe;

[0008] The side wall of the chamber is provided with an inclined guide surface, and a flow gap is left between the upper end of the guide surface and the lower end of the guide plate; the lower end of the guide surface is provided with a glue outlet; the bottom of the chamber is provided with a glue outlet channel connected to the glue outlet, and a glue coating roller is provided in the glue outlet channel, and the glue coating roller is located directly below the glue outlet and can rotate around its own axis; the lower side of the glue coating roller extends out of the lower end of the glue coating housing;

[0009] An overflow strip is provided between the lower end of the guide surface and the glue outlet, and the overflow strip is provided along the length direction of the guide surface; an overflow groove is left between one side of the overflow strip and the lower end of the guide surface;

[0010] A heating panel is laid on the guide surface.

[0011] Compared with the prior art, due to the heat loss caused by long-distance glue delivery, the glue is easy to cool and solidify during the gluing process, and even clots will appear, resulting in the inability to ensure the uniformity of the glue coating process. In addition, the residual glue in the chamber will cause blockage after solidification. The utility model provides a glue coating device for a carton laminating machine. By adopting this solution, the temperature of the glue can be controlled nearby, so that the glue is not easy to cool and solidify quickly, thereby not affecting the subsequent film bonding, and combined with the overflow port to ensure the uniformity of the glue coating. In the specific solution, it includes a glue coating shell, and a guide plate and a guide surface are distributed in the chamber of the glue coating shell. The guide plate and the guide surface are both inclined. In this way, the glue transported into the chamber through the glue feed pipe first falls on the guide plate. As the guide plate is inclined, the glue will fall on the guide surface and finally converge into the overflow groove formed at the overflow strip. In this process, the heating panel is used to heat the guide surface and control the temperature, thereby heating the glue flowing through to make up for the heat lost by the glue, so that the glue is not easy to cool and solidify quickly. The two sides of the guide plate can be A closed connection is formed on the side wall of the chamber, or baffles are provided on both sides of the guide plate to prevent the glue from flowing out of the guide plate. In addition, an overflow bar can be provided at the lower end of the heating panel so that the glue collected in the overflow trough is located on the heating panel, thereby continuously keeping the glue in the overflow trough warm. When the collected glue reaches a certain amount, it will overflow the overflow bar, pass through the glue inlet and glue outlet channel, and finally fall onto the glue coating roller, which is then used to apply glue. In this way, the overflow bar can be provided to evenly distribute the glue along the length of the glue coating roller, thereby improving the uniformity of glue application. In the above scheme, drainage channels can be provided at both ends of the overflow bar to drain the glue collected in the overflow bar when not in use.

[0012] To facilitate the glue to slide off, a heat-conducting panel with a smooth surface is laid on the heating panel. In this solution, the heating panel can be set up by electric heating or laying a water coil. The heat-conducting panel with a smooth surface is laid on it to facilitate heat transfer and quickly slide off the glue to reduce residue.

[0013] To further transfer and replenish heat lost by the glue, a heating unit is installed on the bottom side of the guide plate. The heating unit is used to heat the guide plate. The guide plate is made of a heat-conducting material and has a smooth surface. In this solution, the heating unit is also installed on the bottom side of the guide plate. The heating unit can be installed electrically or by laying a water coil. The heat is transferred by heat conduction. The smooth surface facilitates the rapid sliding of the glue, reducing residue.

[0014] To divert the glue liquid and improve heat transfer efficiency, two guide plates are fixed within the chamber. The upper ends of the two guide plates are connected, and their lower ends are positioned in directions away from each other. The lower end of the glue inlet pipe is connected to the upper ends of the two guide plates, and through-holes are formed on both sides of the lower end of the glue inlet pipe. In this solution, the glue liquid entering the glue inlet pipe enters the two guide plates through the through-holes on both sides of the lower end, and then flows through the two guide plates and falls onto the two guide surfaces on both sides of the chamber. At this time, the diverted glue liquid is heated, thereby improving heat transfer efficiency.

[0015] In order to facilitate the glue to fall onto the glue coating roller, the glue outlet is provided with a necking section, the necking section is located in the glue outlet channel, and the necking of the lower end of the necking section is located just above the glue coating roller.

[0016] To ensure uniform glue thickness distribution on the glue roller, scrapers are installed on the glue outlet channels on both sides of the glue roller, with a gap between the scrapers and the glue roller. The length of the scrapers is equal to or greater than the length of the glue roller, and baffles can be installed at both ends of the scrapers to prevent glue from falling off the scrapers.

[0017] To facilitate the detachable connection and quick replacement of the scraper, the gluing housing has escape grooves on both sides of its lower end. These escape grooves have a socket inside that extends through the glue outlet channel. The scraper is inserted into the glue outlet channel through the sockets. The scraper has a handle connected to the sidewalls of the escape grooves via several bolts. In this solution, the escape grooves on both sides of the lower end of the gluing housing provide insertion positions for the scraper. When the scraper is inserted into the glue outlet channel through the sockets, a gap is formed between the scraper and the gluing roller. The handles are located within the escape grooves and secured with bolts.

[0018] To facilitate control of the thickness of the glue on the glue roller, the handle is provided with an elongated through-hole, through which the handle is connected to the bolt. The length of the elongated through-hole is set along the insertion direction of the scraper into the socket. The elongated through-hole allows the handle and scraper to be displaced, thereby facilitating control of the distance between the scraper and the glue roller.

[0019] In order to facilitate the control of the lateral movement of the entire gluing shell on the conveyor belt to adapt to different placement positions of the cardboard or different gluing areas of the cardboard, it also includes a frame, which spans the conveyor belt and has a sliding hole on the top of the frame. The sliding hole is arranged along the width direction of the conveyor belt; a slider is slidably connected in the sliding hole, and the bottom of the slider is connected to the gluing shell through a telescopic cylinder; the frame also has a driving member for driving the slider to slide.

[0020] As a specific driving method for driving the glue coating shell to move horizontally, the driving part adopts a rotating motor, and the sliding hole is provided with a guide rod and a screw rod parallel to each other and arranged along the sliding direction of the slider. The guide rod and the slider are slidingly connected, and the screw rod and the slider are threadedly connected. The rotating motor is used to drive the screw rod to rotate.

[0021] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0022] 1. The utility model provides a gluing device for a carton laminating machine. By adopting this solution, the temperature of the glue liquid can be controlled locally, so that the glue is not easy to cool and solidify quickly, thereby not affecting the subsequent film bonding, and the overflow port is combined to ensure the uniformity of glue coating.

[0023] 2. The utility model provides a gluing device for a paper box laminating machine. By adopting this solution, a detachable scraper and its controllable displacement are provided, which can facilitate the uniform distribution of the thickness of the glue liquid on the gluing roller, realize the detachable connection of the scraper, achieve the effect of quick replacement, and also realize the control of the thickness of the glue liquid on the gluing roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the accompanying drawings:

[0025] Figure 1 A schematic structural diagram of the gluing device provided by the utility model;

[0026] Figure 2 A schematic diagram of the internal structure of the glue-coated housing provided by the present invention;

[0027] Figure 3 The utility model provides Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 The utility model is a plan view of the scraper provided by the utility model.

[0029] Markings and corresponding parts names in the accompanying drawings:

[0030] 1-glue coating shell, 101-guide surface, 102-heating panel, 103-heat conduction panel, 104-heating unit, 105-glue outlet channel, 106-avoidance groove, 2-glue inlet pipe, 201-through hole, 3-guide plate, 4-glue coating roller, 5-overflow strip, 6-neck section, 7-scraper, 8-bolt, 9-frame, 901-slider, 902-telescopic cylinder, 903-rotating motor, 904-guide rod, 905-screw. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The schematic implementation methods of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0032] Example

[0033] This embodiment provides a gluing device for a carton laminating machine, such as Figures 1-4 As shown, including:

[0034] A glue coating housing 1, wherein the glue coating housing 1 has a chamber inside, and a glue feed pipe 2 is provided at the top of the chamber, penetrating the top wall of the glue coating housing 1, and the glue feed pipe 2 is connected to the chamber; an inclined guide plate 3 is fixed in the chamber, and the guide plate 3 is located directly below the bottom outlet of the glue feed pipe 2;

[0035] The side wall of the chamber is provided with an inclined guide surface 101, and a flow gap is left between the upper end of the guide surface 101 and the lower end of the guide plate 3; the lower end of the guide surface 101 is provided with a glue outlet; the bottom of the chamber is provided with a glue outlet channel 105 connected to the glue outlet, and a glue coating roller 4 is provided in the glue outlet channel 105. The glue coating roller 4 is located directly below the glue outlet and can rotate around its own axis; the lower side of the glue coating roller 4 extends out of the lower end of the glue coating housing 1;

[0036] An overflow strip 5 is provided between the lower end of the guide surface 101 and the glue outlet, and the overflow strip 5 is provided along the length direction of the guide surface 101; an overflow groove is left between one side of the overflow strip 5 and the lower end of the guide surface 101;

[0037] A heating panel 102 is provided on the guide surface 101 .

[0038] Compared with the prior art, since long-distance glue delivery will cause heat loss, during the gluing process, the colloid is easy to cool and solidify, and even clots will appear, resulting in the inability to ensure the uniformity of the gluing process. In addition, the residual glue liquid inside the chamber will also cause blockage after solidification. The utility model provides a gluing device for a paper box laminating machine. By adopting this solution, the temperature of the glue liquid can be controlled nearby, so that the glue is not easy to cool and solidify quickly, thereby not affecting the subsequent film bonding, and combined with the overflow port to ensure the uniformity of the glue coating. In the specific scheme, it includes a glue coating shell 1, and a guide plate 3 and a guide surface 101 are distributed in the chamber of the glue coating shell 1. The guide plate 3 and the guide surface 101 are both inclined. In this way, the glue delivered to the chamber through the glue inlet pipe 2 first falls on the guide plate 3. As the inclined surface of the guide plate 3 guides the glue, the glue will fall on the guide surface 101 and eventually converge into the overflow groove formed by the overflow bar 5. In this process, the heating panel 102 is used to heat the guide surface 101 and control the temperature, thereby heating the glue flowing through to make up for the heat lost by the glue, so that the glue is not easy to cool and solidify quickly. The two sides of the guide plate 3 can be sealed and connected to the side walls of the chamber, or baffles can be set on both sides of the guide plate 3 to prevent the glue from flowing out of the two sides of the guide plate 3; in addition, the overflow bar 5 can be set at the lower end of the heating panel 102, so that the glue accumulated in the overflow trough is located on the heating panel 102, and the glue in the overflow trough can also be kept warm; when the accumulated glue reaches a certain amount, it will overflow the overflow bar 5, pass through the glue inlet and the glue outlet channel 105, and finally fall on the glue coating roller 4, and the glue coating is achieved by the glue coating roller 4; in this way, the setting of the overflow bar 5 makes the glue evenly distributed along the length direction of the glue coating roller 4 to improve the uniformity of glue coating. In the above scheme, drainage channels can be set at both ends of the overflow bar 5 to discharge the glue accumulated in the overflow bar 5 when not in use.

[0039] To facilitate the glue to slide off, a heat-conducting panel 103 with a smooth surface is laid on the heating panel 102. In this solution, the heating panel 102 can be set up by electric heating or laying a water coil. The heat-conducting panel 103 with a smooth surface is laid on it to facilitate heat transfer and quickly slide off the glue to reduce residue.

[0040] To further transfer and replenish heat lost by the glue, a heating unit 104 is provided on the bottom side of the guide plate 3. The heating unit 104 is used to heat the guide plate 3, which is made of a thermally conductive material and has a smooth surface. In this embodiment, the heating unit 104 is also provided on the bottom side of the guide plate 3. The heating unit 104 can be electrically heated or installed in the form of a water coil. The heat is transferred through heat conduction, and the smooth surface facilitates the rapid sliding of the glue, reducing residue.

[0041] To divert the glue liquid and improve heat transfer efficiency, two guide plates 3 are fixed within the chamber. These guide plates 3 are connected at their upper ends and face away from each other at their lower ends. The lower end of the glue inlet pipe 2 is connected to the upper ends of the two guide plates 3, and through-holes 201 are formed on both sides of the lower end of the glue inlet pipe 2. In this embodiment, the glue liquid entering the glue inlet pipe 2 passes through the through-holes 201 on both sides of the lower end and enters the two guide plates 3. From there, the two guide plates 3 fall onto the two guide surfaces 101 on either side of the chamber. At this point, the diverted glue liquid is heated, thereby improving heat transfer efficiency.

[0042] In order to facilitate the glue to fall onto the glue coating roller 4 , the glue outlet is provided with a necking section 6 , which is located in the glue outlet channel 105 , and the necking of the lower end of the necking section 6 is located just above the glue coating roller 4 .

[0043] In order to ensure a uniform thickness distribution of the glue liquid on the glue coating roller 4, scrapers 7 are provided on the glue outlet channels 105 on both sides of the glue coating roller 4, with a gap left between the scrapers 7 and the glue coating roller 4. The length of the scrapers 7 is equal to or greater than the length of the glue coating roller 4, and baffles may be provided at both ends of the scrapers 7 to prevent the glue liquid from falling from the ends of the scrapers 7.

[0044] To facilitate the detachable connection and quick replacement of the scraper 7, the gluing housing 1 has escape grooves 106 on both sides of its lower end. The escape grooves 106 have a socket inside that extends through the glue outlet channel 105. The scraper 7 is inserted into the glue outlet channel 105 through the socket. The scraper 7 has a handle connected to the sidewalls of the escape grooves 106 via a plurality of bolts 8. In this embodiment, the escape grooves 106 are provided on both sides of the lower end of the gluing housing 1 to provide insertion positions for the scraper 7. When the scraper 7 is inserted into the glue outlet channel 105 through the socket, a gap is formed between the scraper 7 and the gluing roller 4. The handle is located within the escape grooves 106 and secured by bolts 8.

[0045] To facilitate control of the thickness of the glue on the glue roller 4, the handle is provided with an elongated through-hole 201, through which the handle is connected to the bolt 8. The length of the elongated through-hole 201 is arranged along the insertion direction of the scraper 7 into the socket. The elongated through-hole 201 allows the handle and the scraper 7 to be moved, thereby controlling the distance between the scraper 7 and the glue roller 4.

[0046] In order to facilitate the control of the lateral movement of the entire gluing shell 1 on the conveyor belt to adapt to different placement positions of the cardboard or different gluing areas of the cardboard, it also includes a frame 9, which spans the conveyor belt. The top of the frame 9 has a sliding hole, and the sliding hole is arranged along the width direction of the conveyor belt; a slider 901 is slidably connected in the sliding hole, and the bottom of the slider 901 is connected to the gluing shell 1 through a telescopic cylinder 902; the frame 9 also has a driving member for driving the slider 901 to slide.

[0047] As a specific driving method for driving the glue coating shell 1 to move horizontally, the driving part adopts a rotating motor 903, and the sliding hole is provided with a guide rod 904 and a screw rod 905 which are parallel to each other and arranged along the sliding direction of the slider 901. The guide rod 904 and the slider 901 are slidingly connected, and the screw rod 905 and the slider 901 are threadedly connected. The rotating motor 903 is used to drive the screw rod 905 to rotate.

[0048] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific implementation method of the utility model and is not intended to limit the scope of protection of the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A gluing device for a carton laminating machine, characterized in that: include: A glue coating shell (1) is provided with a chamber inside the glue coating shell (1), a glue feed pipe (2) is provided on the top of the chamber and passes through the top wall of the glue coating shell (1), and the glue feed pipe (2) is connected to the chamber; an inclined guide plate (3) is fixed in the chamber, and the guide plate (3) is located directly below the bottom outlet of the glue feed pipe (2); The side wall of the chamber is provided with an inclined guide surface (101), and a flow gap is left between the upper end of the guide surface (101) and the lower end of the guide plate (3); the lower end of the guide surface (101) is provided with a glue outlet; the bottom of the chamber is provided with a glue outlet channel (105) connected to the glue outlet, and a glue coating roller (4) is provided in the glue outlet channel (105), and the glue coating roller (4) is located directly below the glue outlet and can rotate around its own axis; the lower side of the glue coating roller (4) extends out of the lower end of the glue coating housing (1); An overflow strip (5) is provided between the lower end of the guide surface (101) and the glue outlet, and the overflow strip (5) is provided along the length direction of the guide surface (101); an overflow groove is left between one side of the overflow strip (5) and the lower end of the guide surface (101); A heating panel (102) is provided on the guide surface (101).

2. The gluing device of a carton laminating machine according to claim 1, characterized in that: A heat-conducting panel (103) is laid on the heating panel (102), and the heat-conducting panel (103) has a smooth surface.

3. The gluing device of a carton laminating machine according to claim 1, characterized in that: A heating unit (104) is provided on the bottom side of the guide plate (3), and the heating unit (104) is used to heat the guide plate (3). The guide plate is made of a heat-conducting material, and the guide plate (3) is a smooth surface.

4. The gluing device of a carton laminating machine according to claim 1, characterized in that: Two guide plates (3) are fixed in the chamber, the upper ends of the two guide plates (3) are connected, and the lower ends are arranged in directions away from each other; the lower end of the glue inlet pipe (2) is connected to the upper ends of the two guide plates (3), and through holes (201) are opened on both sides of the lower end of the glue inlet pipe (2).

5. The gluing device of a carton laminating machine according to claim 1, characterized in that: The glue outlet is provided with a necking section (6), the necking section (6) is located in the glue outlet channel (105), and the necking of the lower end of the necking section (6) is located directly above the glue coating roller (4).

6. The gluing device of a carton laminating machine according to claim 1, characterized in that: The glue outlet channels (105) on both sides of the glue coating roller (4) are provided with scrapers (7), and a gap is left between the scrapers (7) and the glue coating roller (4).

7. The gluing device of a carton laminating machine according to claim 6, characterized in that: Both sides of the lower end of the glue coating shell (1) are provided with avoidance grooves (106), and the inner side of the avoidance groove (106) is provided with a socket that passes through the glue outlet channel (105); the scraper (7) is used to be inserted into the glue outlet channel (105) from the socket; the scraper (7) has a handle, and the handle is connected to the side wall of the avoidance groove (106) through a plurality of bolts (8).

8. The gluing device of a carton laminating machine according to claim 7, characterized in that: The handle is provided with a long through hole, and the handle is connected to the bolt (8) via the long through hole. The length of the long through hole is set along the insertion direction of the scraper (7) into the socket.

9. The gluing device of a carton laminating machine according to claim 1, characterized in that: The invention also includes a frame (9), the frame (9) spanning the conveyor belt, the frame (9) having a sliding hole on the top, the sliding hole being arranged along the width direction of the conveyor belt; a slider (901) is slidably connected in the sliding hole, the bottom of the slider (901) is connected to the glue coating shell (1) through a telescopic cylinder (902); the frame (9) also has a driving member for driving the slider (901) to slide.

10. The gluing device of a carton laminating machine according to claim 9, characterized in that: The driving member adopts a rotating motor (903), and the sliding hole is provided with a guide rod and a screw rod which are parallel to each other and arranged along the sliding direction of the slider (901), the guide rod and the slider (901) are slidably connected, the screw rod and the slider (901) are threadedly connected, and the rotating motor (903) is used to drive the screw rod to rotate.

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