Double-sided coating mechanism

Abstract

The utility model discloses a double-sided coating mechanism which comprises a first gluing assembly used for supporting and conveying a photo album core and gluing a first surface of the photo album core, a second gluing assembly arranged above the first gluing assembly and used for gluing a second surface of the photo album core, and a photoelectric sensor used for sensing the position of the photo album core, the lifting assembly is used for driving the second gluing assembly to lift; wherein the second surface of the photo album core is opposite to the first surface of the photo album core. According to the double-sided coating mechanism, double-sided coating can be carried out on the photo album core by adopting hot melt adhesive, so that the double-sided coating mechanism is quick in shaping and drying, high in production efficiency and simple to maintain, glue edge overflow caused by glue spraying and bonding on the photo album cover is avoided, and meanwhile, the double-sided coating mechanism can adapt to the size and the thickness of the photo album core, and is high in adaptability.

Description

Technical Field

[0001] The utility model relates to the field of glue coating, and more specifically, to a double-sided coating mechanism. Background Art

[0002] In the production and processing of photo albums, it is necessary to bond the photo album core and the photo album cover. There are mainly two methods in the prior art. One is to spray hot melt glue on the photo album cover and then bond it with the photo album core. Using this method may cause the sprayed glue surface of the photo album cover to be larger than the photo album core, resulting in glue overflow. The other method is to vertically move the photo album core to perform double-sided coating of white latex on the photo album core. Since the setting and drying time of white latex requires more than one day, the production efficiency is affected. At the same time, the glue in the white latex tank needs to be thoroughly cleaned after a long time without use, which is not only difficult to maintain but also causes waste of resources. Summary of the Utility Model

[0003] The utility model aims to overcome at least one of the above-mentioned defects of the prior art, and provides a double-sided coating mechanism for solving the problems of glue overflow on the photo album, low production efficiency and difficult maintenance in the prior art.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A double-sided coating mechanism for double-sided glue coating of an object to be coated, comprising: a first coating assembly for supporting and conveying the object to be coated and coating the first surface of the object to be coated, a second coating assembly disposed above the first coating assembly and for coating the second surface of the object to be coated, a photoelectric sensor for sensing the position of the object to be coated, and a lifting assembly for driving the second coating assembly to lift and lower; wherein, the second surface of the object to be coated is a surface opposite to the first surface of the object to be coated.

[0006] In one embodiment, the first coating assembly includes a first glue pumping member for storing and pumping out glue, a first glue box cooperating with the first glue pumping member and for accommodating the pumped-out glue, a first coating roller disposed in the first glue box, a first driving member for driving the first coating roller, and a first scraping member disposed in the first glue box and for scraping the first coating roller.

[0007] In one embodiment, a first overflow member is disposed below and / or at the end of the first glue box.

[0008] In one embodiment, the first scraping member is a silicone strip disposed parallel to the first coating roller.

[0009] In one embodiment, the second glue - applying assembly includes a second glue - pumping member for storing and pumping out glue, a glue - supplying member connected to the second glue - pumping member, a second glue - applying roller arranged in parallel with the glue - supplying member, a second driving member for driving the second glue - applying roller to rotate, and a second glue - scraping member arranged between the glue - supplying member and the second glue - applying roller.

[0010] In one embodiment, the second glue - pumping member, the glue - supplying member, the second glue - applying roller, the glue - supplying member, and the second driving member are all integrated on a second glue - applying machine frame, and the lifting assembly is connected to the second glue - applying machine frame.

[0011] In one embodiment, the second glue - scraping member is connected to the glue - supplying member through an adjusting element.

[0012] In one embodiment, the glue - supplying member is a glue - supplying tube or a glue - supplying rod that matches the length of the second glue - applying roller. A plurality of glue - supplying holes are arranged at intervals along the length direction on the glue - supplying tube or the glue - supplying rod, and the glue - supplying holes are communicated with the second glue - pumping member; alternatively, a glue - supplying groove parallel to the second glue - applying roller is arranged along the length direction on the glue - supplying tube or the glue - supplying rod, and the glue - supplying groove is communicated with the second glue - pumping member.

[0013] In one embodiment, a second overflow member is arranged on the glue - supplying member.

[0014] In one embodiment, the second overflow member is an overflow baffle arranged at both ends of the glue - supplying member.

[0015] Compared with the prior art, the beneficial effects of the present utility model at least include:

[0016] The double - sided coating mechanism of the present technical solution can use hot - melt glue to perform double - sided coating on the photo - album core. It not only has fast shaping and drying, high production efficiency, and simple maintenance, but also avoids the glue edge overflow caused by spraying glue on the photo - album cover. At the same time, the present technical solution can adapt to the size and thickness of the photo - album core, with high adaptability. Specifically, when the double - sided coating mechanism of the present technical solution is in use, the object to be coated, that is, the photo - album core, is placed on the first glue - applying assembly. When the photoelectric sensor detects that the head of the photo - album core reaches below the first glue - applying assembly, the lifting assembly drives the second glue - applying assembly to descend, so that the second glue - applying assembly presses on the photo - album core. The first glue - applying assembly and the second glue - applying assembly operate simultaneously and drive the photo - album core to move, that is, the hot - melt glue coating on the upper and lower surfaces of the photo - album core is realized; when the photoelectric sensor detects that the tail of the photo - album core is about to reach below the first glue - applying assembly, the lifting assembly drives the second glue - applying assembly to ascend through a time delay, so that the coating is immediately disconnected when coating the tail of the photo - album core, so that the two opposite surfaces of the photo - album core can be just completely coated with glue.

[0017] The double-sided coating mechanism of this technical solution can also be used in combination with other components to complete the automated or semi-automated production of photo albums. For example, the double-sided coating mechanism can be combined with a conveying component to convey the photo album core, or it can be combined with a rectifying module to rectify the photo album core and then apply glue. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Structure diagram of the double-sided coating mechanism described in the embodiment of the present utility model

[0019] Figure 2 Side cross-sectional view of the double-sided coating mechanism described in the embodiment of the present utility model.

[0020] Figure 3 Partial structure diagram of the double-sided coating mechanism described in the embodiment of the present utility model.

[0021] Figure 4 Structure diagram of the glue supply part described in the embodiment of the present utility model.

[0022] Reference numerals: 10, first glue application component; 11, first glue pumping part; 111, first glue storage box; 112, first glue pumping pipe; 12, first glue box; 13, first glue application roller; 14, first driving part; 15, first glue scraping part; 16, first overflow part; 20, second glue application component; 21, second glue pumping part; 211, second glue storage box; 212, second glue pumping pipe; 22, glue supply part; 221, glue supply hole; 222, glue tank; 223, groove; 23, second glue application roller; 24, second driving part; 25, second glue scraping part; 26, second overflow part; 30, lifting component. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The drawings of the present utility model are only for illustrative purposes and should not be construed as a limitation to the present utility model. For better illustration of the following embodiments, some components in the drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0024] As Figure 1A double-sided coating mechanism as shown is used for double-sided gluing of the object to be coated. In this embodiment, the object to be coated is an album core, and in other embodiments, it can be a book or other items that require double-sided gluing. The double-sided coating mechanism of this embodiment includes: a first coating assembly 10 for supporting and conveying the album core and gluing the first side of the album core, a second coating assembly 20 disposed above the first coating assembly 10 and for gluing the second side of the album core, a photoelectric sensor for sensing the position of the album core, and a lifting assembly 30 for driving the second coating assembly 20 to lift and lower; wherein, the second side of the album core is the side opposite to the first side of the album core.

[0025] The double-sided coating mechanism of this embodiment can use hot melt adhesive for double-sided coating of the album core. It not only has fast setting and drying, high production efficiency, and simple maintenance, but also avoids the glue edge overflow caused by spraying glue on the album cover. At the same time, this embodiment can adapt to the size and thickness of the album core with high adaptability. Specifically, when the double-sided coating mechanism of this embodiment is in use, the object to be coated, that is, the album core, is placed on the first coating assembly 10. When the photoelectric sensor detects that the head of the album core reaches below the first coating assembly 10, the lifting assembly 30 drives the second coating assembly 20 to descend, so that the second coating assembly 20 presses onto the album core. The first coating assembly 10 and the second coating assembly 20 operate simultaneously and drive the album core to move, that is, the hot melt adhesive coating on the upper and lower surfaces of the album core is realized; when the photoelectric sensor detects that the tail of the album core is about to reach below the first coating assembly 10, the lifting assembly 30 is driven by a time delay to drive the second coating assembly 20 to rise, so that the coating is immediately disconnected when coating the tail of the album core, so that the two opposite surfaces of the album core can be just completely coated with glue.

[0026] The double-sided coating mechanism of this embodiment can also be used in combination with other components to complete the automated or semi-automated production of albums. For example, the double-sided coating mechanism can be combined with a conveying component to complete the conveying of the album core, or can be combined with a rectifying module to rectify the album core before gluing.

[0027] Such as Figure 2 Combined with Figure 1As shown in the figure, the first glue - applying component 10 in this embodiment includes a first glue - pumping member 11 for storing and pumping out glue, a first glue box 12 cooperating with the first glue - pumping member 11 and used for accommodating the pumped - out glue, a first glue - applying roller 13 disposed in the first glue box 12, a first driving member 14 for driving the first glue - applying roller 13, and a first scraping member 15 disposed in the first glue box 12 and used for scraping the glue on the first glue - applying roller 13. Specifically, the first glue - pumping member 11 includes a first glue - storage box 111 for storing glue and a first glue - pumping pipe 112 communicating with the first glue - storage box 111 and pumping the glue out to the first glue box 12. The glue - pumping pressure can be sourced from a gear pump or air pressure. The first glue box 12 is in an upward - opening shape. The first glue - applying roller 13 is rotatably disposed in the first glue box 12. By driving the first glue - applying roller 13 to rotate through the first driving member 14, the glue in the first glue box 12 adheres to the outer periphery of the first glue - applying roller 13 and then applies glue to the album core. To make the glue - applying more uniform, a first scraping member 15 for scraping the first glue - applying roller 13 is further disposed in the first glue box 12 of this embodiment. The first scraping member 15 can shape the hot - melt glue on the surface of the first glue - applying roller 13, so that the hot - melt glue is evenly coated on the album core.

[0028] The first scraping member 15 in this embodiment is a silica - gel strip arranged parallel to the first glue - applying roller 13. The length of the silica - gel strip matches that of the first glue - applying roller 13. The silica - gel material can avoid scratching the glue - applying roller and improve the service life of the product.

[0029] The first scraping member 15 in this embodiment is connected to the inner wall of the first glue box 12 through an adjusting element, so that the gap between the first scraping member 15 and the first glue - applying roller 13 can be adjusted, realizing the function of adjusting the thickness of the hot - melt glue on the first glue - applying roller 13. The adjusting element in this embodiment can be an adjusting nut.

[0030] In other embodiments, the first scraping member 15 can also be fixedly connected to the inner wall of the first glue box 12, and a hot - melt glue with a uniform thickness is used.

[0031] A first overflow member 16 is disposed below the first glue box 12 in this embodiment. Specifically, the first overflow member 16 in this embodiment is an overflow chute. The overflow chute is disposed below the end of the first glue box 12. When the hot - melt glue in the first glue box 12 exceeds the end baffle of the first glue box 12, it overflows the end baffle and flows out through the overflow chute below it. Moreover, the position of the overflow chute in this embodiment corresponds to the first glue - storage box 111, and an opening for receiving the glue overflowing from the overflow chute can be provided on the first glue - storage box 111, so as to realize the recycling of the overflowed glue and avoid waste.

[0032] In other embodiments, the first overflow member 16 can be directly disposed at the end of the first glue box 12.

[0033] Such as Figure 3As shown in the figure, the second glue - applying component 20 in this embodiment includes a second glue - pumping member 21 for storing and pumping out glue, a glue - supplying member 22 connected to the second glue - pumping member 21, a second glue - applying roller 23 arranged in parallel with the glue - supplying member 22, a second driving member 24 for driving the second glue - applying roller 23 to rotate, and a second glue - scraping member 25 arranged between the glue - supplying member 22 and the second glue - applying roller 23. Since the second glue - applying roller 23 in this embodiment needs to apply glue to the upper surface of the photo - album core, that is, the lower part of the second glue - applying roller 23 needs to contact the photo - album core, it is impossible to use a glue box to hold the glue and make the outer circumference of the second glue - applying roller 23 adhere to the glue. Therefore, the second glue - applying component 20 in this embodiment is differently designed from the first glue - applying component 10. Instead of using a glue box to supply glue, it uses the glue - supplying member 22 to supply glue.

[0034] Specifically, the second glue - pumping member 21 includes a second glue - storage box 211 for storing glue, and a second glue - pumping pipe 212 connected to the second glue - storage box 211 and pumping the glue out to the glue - supplying member 22. The glue - pumping pressure can come from a gear pump or air pressure. The glue - supplying member 22 then provides the glue to the second glue - applying roller 23. By driving the second glue - applying roller 23 to rotate through the second driving member 24, the glue flowing out from the glue - supplying member 22 adheres to the outer circumference of the second glue - applying roller 23 and then applies glue to the photo - album core. In order to make the glue - applying more uniform, a second glue - scraping member 25 is also arranged between the glue - supplying member 22 and the second glue - applying roller 23. The second glue - scraping member 25 can shape the hot - melt glue on the surface of the second glue - applying roller 23 to make the hot - melt glue evenly coated on the photo - album core.

[0035] Both the first glue - applying component 10 and the second glue - applying component 20 in this embodiment are equipped with their own glue - storage boxes and can automatically replenish glue during use.

[0036] Both the first driving member 14 and the second driving member 24 in this embodiment are motors.

[0037] The second glue - pumping member 21, the glue - supplying member 22, the second glue - applying roller 23, the glue - supplying member 22, and the second driving member 24 in this embodiment are all integrated on the second glue - applying machine frame. The lifting component 30 is connected to the second glue - applying machine frame, so that the lifting component 30 can drive the lifting of the second glue - applying component 20. Specifically, the lifting component 30 in this embodiment is a telescopic cylinder. In other embodiments, a ball - screw structure can also be used as the lifting component 30.

[0038] Similar to the first glue - scraping member 15, the second glue - scraping member 25 in this embodiment is connected to the glue - supplying member 22 through an adjusting element, so that the gap between the second glue - scraping member 25 and the second glue - applying roller 23 can be adjusted, realizing the function of adjusting the thickness of the hot - melt glue on the second glue - applying roller 23.

[0039] The glue supply member 22 in this embodiment is a glue supply pipe or a glue supply rod that matches the length of the second glue application roller 23. A plurality of glue supply holes 221 are provided at intervals along the length direction on the glue supply pipe or the glue supply rod. The glue supply holes 221 communicate with the second glue pumping member 21. The side where the glue supply holes 221 are located is the side corresponding to the second glue application roller 23, and the second glue application roller 23 is supplied with glue through the glue supply holes 221.

[0040] As Figure 4 shown, in order to further make the glue application more uniform, this embodiment further includes a glue trough 222 provided along the length direction of the glue supply member 22 and located outside the glue supply holes 221. The glue extruded from the glue supply holes 221 can stay in the glue trough 222 and better contact with the second glue application roller 23.

[0041] In other embodiments, a glue supply groove parallel to the second glue application roller 23 may also be directly provided in the length direction of the glue supply pipe or the glue supply rod. The glue supply groove communicates with the second glue pumping member 21, and the glue supply groove is provided on the side corresponding to the second glue application roller 23.

[0042] A groove 223 for accommodating the second glue scraping member 25 is further provided on the glue supply member 22 in this embodiment, which facilitates the positioning and installation of the second glue scraping member 25.

[0043] A second overflow member 26 is provided on the glue supply member 22 in this embodiment. Specifically, the second overflow member 26 is an overflow baffle provided at both ends of the glue supply member 22. When the hot melt glue fills the glue trough 222, the excess hot melt glue will overflow from both ends of the glue trough 222, and the overflowing hot melt glue will be diverted and dripped onto the first glue box 12 located below through the overflow baffle, so that the hot melt glue overflowed from the second glue application assembly 20 can be reused in the first glue application assembly 10 to avoid waste.

[0044] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly explaining the technical solutions of the present invention, rather than limitations on the specific implementation manners of the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the claims of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A double-sided coating mechanism, used for double-sided coating of an object to be coated, characterized in that: include: A first gluing component for supporting and conveying the object to be coated and applying glue to the first side of the object to be coated, a second gluing component arranged above the first gluing component and applying glue to the second side of the object to be coated, a photoelectric sensor for sensing the position of the object to be coated, and a lifting component for driving the second gluing component to rise and fall; wherein the second side of the object to be coated is the side opposite to the first side of the object to be coated.

2. The double-sided coating mechanism according to claim 1, characterized in that: The first glue coating component includes a first glue pumping component for storing and pumping out glue, a first glue box that cooperates with the first glue pumping component and is used to accommodate the pumped glue, a first glue coating roller arranged in the first glue box, a first driving component that drives the first glue coating roller, and a first glue scraping component that is arranged in the first glue box and is used to scrape glue on the first glue coating roller.

3. The double-sided coating mechanism according to claim 2, characterized in that: A first overflow member is provided below and / or at an end of the first plastic box.

4. The double-sided coating mechanism according to claim 2, characterized in that: The first glue scraping member is a silicone strip arranged parallel to the first glue coating roller.

5. The double-sided coating mechanism according to any one of claims 1 to 4, characterized in that: The second glue coating assembly includes a second glue pump component that stores and pumps out glue, a glue supply component connected to the second glue pump component, a second glue coating roller arranged parallel to the glue supply component, a second driving component that drives the second glue coating roller to rotate, and a second glue scraping component arranged between the glue supply component and the second glue coating roller.

6. The double-sided coating mechanism according to claim 5, characterized in that: The second glue pump component, the glue supply component, the second glue coating roller, the glue supply component and the second driving component are all integrated on the second glue coating frame, and the lifting assembly is connected to the second glue coating frame.

7. The double-sided coating mechanism according to claim 5, characterized in that: The second rubber scraping member is connected to the rubber supplying member through an adjusting element.

8. The double-sided coating mechanism according to claim 5, characterized in that: The glue supply component is a glue supply tube or a glue supply rod that matches the length of the second glue coating roller. The glue supply tube or the glue supply rod is provided with a plurality of glue supply holes spaced apart along the length direction, and the glue supply holes are connected to the second glue pump component; or, the glue supply tube or the glue supply rod is provided with a glue supply groove parallel to the second glue coating roller along the length direction, and the glue supply groove is connected to the second glue pump component.

9. The double-sided coating mechanism according to claim 8, characterized in that: The glue supplying member is provided with a second overflow member.

10. The double-sided coating mechanism according to claim 9, characterized in that: The second overflow member is an overflow baffle disposed at both ends of the glue supply member.

Images