Glue scraping mechanism and glue spraying device containing the same

Abstract

The present invention provides a glue scraping mechanism, comprising a scraping assembly, which comprises a pressing member and a scraping head; a force is applied to the pressing member, and the scraping head is pushed by the pressing member so that the scraping head is pressed on the workbench; the scraping head rubs against the workbench to remove the glue adhering to the workbench; when the scraping head is worn, the pressing member ensures that the scraping head is pressed on the workbench under the action of force, so as to compensate for the wear of the scraping head; the glue spraying device containing the glue scraping mechanism comprises the above-mentioned scraping assembly and a glue tank; a through flow channel is provided on the pressing member, and an interface is connected to the flow channel, which is connected to the glue tank through the interface; a glue injection groove is provided on the working surface of the workbench, and the position of the flow channel corresponds to the position of the glue injection groove, the scraping head surrounds the glue injection groove, and the workbench and the scraping head are fitted together to form a closed space through the scraping assembly to prevent glue from overflowing, and the device has a simple structure and is easy to maintain.

Description

Technical Field

[0001] The invention belongs to the field of glue dispensing equipment, and in particular relates to a glue scraping mechanism, and also in particular relates to a glue spraying device containing the glue scraping mechanism. Background Art

[0002] During the dispensing process, glue is applied to the dispensing area. Due to the characteristics of glue, it will solidify if left in the air for a long time. The volume of glue will shrink during the solidification process. In order to meet the coating requirements, excessive glue is currently sprayed to meet the coating amount requirements. The glue that overflows the dispensing area will be scraped off by a scraper after completing the processing steps.

[0003] The scraper device will contact the plane outside the glue dispensing area and scrape off the glue outside the glue dispensing area through reciprocating motion. However, since the scraper device is in contact with the plane for a long time, the scraper device will be worn due to friction during the reciprocating motion, resulting in a gap between the scraper device and the plane, thereby affecting the scraping effect. In order to solve this problem, a scraper mechanism with wear compensation is needed. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the present invention proposes a scraper mechanism that ensures that the scraper head is pressed against the workbench. When the scraper head is worn, external force will press the scraper head against the workbench again, thereby achieving automatic wear compensation. The mechanism is simple and easy to use.

[0005] The present invention provides a scraping mechanism, comprising a scraping assembly, wherein the scraping assembly comprises a pressing member and a scraping head;

[0006] The pressing member is provided with a force toward the scraper head, and the scraper head is pushed by the pressing member so that the scraper head is pressed on the workbench; the scraper head rubs against the workbench to remove the glue bonded to the workbench;

[0007] When the scraper head is worn, the pressing member is forced to keep the scraper head in contact with the workbench.

[0008] Preferably, the pressing member includes a pressing block, and the scraping assembly also includes a magnet and a fixing plate for fixing the scraping assembly, and through the magnet, the pressing block and the fixing plate attract each other to form a force for keeping the scraping head in contact with the workbench.

[0009] Preferably, the magnet is disposed on the pressing block, and the magnet is arranged on both sides of the pressing block.

[0010] Preferably, the pressing block comprises a first plane and a second plane;

[0011] The first plane and one side of the fixed plate attract each other;

[0012] The second plane is in contact with the scraper head. The contact between the second plane and the scraper head limits the contact between the first plane and the fixing plate, so that a gap exists between the first plane and the fixing plate.

[0013] Preferably, the pressing block further includes a side surface, the scraping head includes an inner wall surface, and the side surface is in contact with the inner wall surface.

[0014] Preferably, the glue spraying device containing the glue scraping mechanism comprises the above-mentioned scraping assembly and glue tank;

[0015] The lower pressing member is provided with a through flow channel, the flow channel is connected with an interface, and is communicated with the glue tank through the interface;

[0016] A glue injection groove is provided on the working surface of the workbench, the position of the flow channel corresponds to the position of the glue injection groove, and the scraper head penetrates so that the glue is sprayed out from the flow channel, passes through the scraper head, and is sprayed onto the workbench.

[0017] Preferably, it further comprises a bracket and a driving assembly, and the fixing plate and the driving assembly are mounted on the bracket;

[0018] The driving assembly includes a driver and a moving block, the workbench is mounted on the moving block, and the moving block is mounted on the movable end of the driver;

[0019] The driver drives the workbench to reciprocate, thereby achieving glue scraping.

[0020] Preferably, the flow channel opening is smaller than the size of the inner ring of the scraper head.

[0021] Preferably, the scraper head includes a scraping surface, and the scraping surface fits with the working surface of the workbench, so that the inner ring of the scraper head forms a closed space.

[0022] Preferably, a detector is installed on one side of the driver, and the detector is used to detect the position of the workbench.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention provides a glue scraping mechanism and a glue spraying device including the glue scraping mechanism, which can ensure that a scraping head is pressed on a workbench. When the scraping head is worn, an external force will press the scraping head on the workbench again, thereby realizing automatic wear compensation. In the glue spraying device, the scraping head is arranged on the periphery of the glue spraying area, and the scraping head is pressed on the workbench by using a scraping assembly. During the glue spraying process, glue cannot overflow from the glue spraying area, so that the mechanism is light and compact, simple in structure, and easy to use.

[0025] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0027] Figure 1 A schematic diagram of the three-dimensional structure of a scraping assembly in one embodiment of the present invention;

[0028] Figure 2 An exploded schematic diagram of a scraping assembly in one embodiment of the present invention;

[0029] Figure 3 is a cross-sectional view of a scraping assembly in one embodiment of the present invention;

[0030] Figure 4 It is a schematic diagram of the three-dimensional structure of a pressing block in one embodiment of the present invention;

[0031] Figure 5 A schematic diagram of the three-dimensional structure of a scraper head in one embodiment of the present invention;

[0032] Figure 6 It is a schematic diagram of the three-dimensional structure of a workbench in one embodiment of the present invention;

[0033] Figure 7 It is a schematic diagram of the three-dimensional structure of a glue spraying device in one embodiment of the present invention;

[0034] Figure 8 An exploded schematic diagram of a glue spraying device in one embodiment of the present invention;

[0035] Fig. 9 It is a schematic diagram of the three-dimensional structure of a driving component in one embodiment of the present invention.

[0036] As shown in the figure:

[0037] 100, bracket; 200, glue tank; 300, driving assembly; 310, driver; 320, moving block; 330, detector; 400, scraping assembly; 410, pressing member; 411, pressing block; 4111, first plane; 4112, second plane; 4113, side; 4114, interface; 4115, flow channel; 412, magnet; 413, cover plate; 420, scraping head; 421, scraping surface; 422, inner wall surface; 430, fixing plate; 500, workbench; 510, work surface; 511, glue injection groove. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below in conjunction with the accompanying drawings, and the aforementioned and other purposes, features, aspects and advantages of the present invention will become more obvious, so that those skilled in the art can implement it with reference to the text of the specification. In the accompanying drawings, for the sake of clarity, the shapes and sizes can be enlarged, and the same reference numerals will be used in all figures to indicate the same or similar parts. In the following description, words such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc. are based on the orientation or position relationship shown in the accompanying drawings. In particular, "height" is equivalent to the size from top to bottom, "width" is equivalent to the size from left to right, and "depth" is equivalent to the size from front to back. These relative terms are for the convenience of explanation and are generally not intended to require specific orientation. Terms related to attachment, connection, etc. (for example, "connection" and "attachment") refer to the relationship between these structures directly or indirectly fixed or attached to each other through intermediate structures, and movable or rigid attachment or relationship, unless otherwise explicitly stated.

[0039] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0040] like Figure 1-3 As shown, a glue scraping mechanism includes a scraping assembly 400, and the scraping assembly 400 includes a pressing piece 410 and a scraping head 420; wherein, a pressing device is provided on the pressing piece 410, and an external force is generated by the pressing device to push the pressing piece 410, and the scraping head 420 is pushed by the pressing piece 410, so that the scraping head 420 is pressed on the workbench 500; when the scraping head 420 rubs against the workbench 500, the glue adhered to the workbench 500 is scraped out from the workbench 500 due to the obstruction of the scraping head 420.

[0041] At the same time, due to the push of the downward pressing device, the scraper head 420 is pressed tightly against the workbench 500. When the scraper head 420 is in contact and friction with the workbench 500 for a long time, the scraper head 420 will be worn. When the scraper head 420 is worn, the downward pressing member 410, under the action of external force, presses the scraper head 420 at the worn part onto the workpiece surface again, ensuring that the scraper head 420 is always pressed onto the workbench 500 during the period when the downward pressing device generates external force, and the wear of the scraper head 420 is compensated by the external force generated by the downward pressing device.

[0042] like Figure 2 , 3 As shown, in a preferred embodiment, the pressing member 410 includes a pressing block 411 and a cover plate 413. The pressing block 411 is embedded with a magnet 412, and the magnet 412 is fixed in the pressing block 411 by the cover plate 413, so as to protect the magnet 412; the magnet 412 serves as a pressing device in the preferred embodiment, and the scraping assembly 400 also includes a fixing plate 430 for fixing the scraping assembly 400, and the pressing block 411 and the fixing plate 430 attract each other to form an external force for pressing the scraping head 420; wherein, the number of the magnets 412 is two, and the magnets 412 are installed on the side of the pressing member 410 away from the fixing plate 430, and the two magnets 412 It is symmetrically embedded on the pressure block 411 so that the suction forces on both sides of the pressure block 411 are equal, and the force pressing the scraper head 420 is more stable. Since the pressure block 411 needs to be driven by the magnet 412 to press the scraper head 420, and the magnet 412 is attracted to the fixed plate 430 through the pressure block 411, if the magnet 412 is set on the side close to the fixed plate 430, at this time, if the magnet 412 is rigidly connected to the pressure block 411, it may cause the magnet 412 to detach from the pressure block 411 and be adsorbed on the fixed plate 430, so that the pressure block 411 and the fixed plate 430 fail, so that the scraper head 420 is no longer pressed against the workbench 500, and the wear compensation function is lost.

[0043] In this preferred embodiment, the magnet 412 is embedded in the pressing block 411, so that the pressing block 411 and the fixed plate 430 attract each other. The magnet 412 is installed on the surface of the pressing block 411 or the magnet 412 is installed on the fixed plate 430, or the magnet 412 is installed on the pressing block 411 and the fixed plate 430 respectively. The technical effect of the mutual attraction between the pressing block 411 and the fixed plate 430 can also be achieved, which should also be regarded as the technical solution of the present invention. The present invention includes the above solution, but is not limited to the above solution, and the protection scope of the technical solution of the present invention should not be limited by the specific embodiments and the drawings in the specification.

[0044] like Figure 4 , 5As shown, the pressing block 411 is stepped, so that a part of the pressing block 411 is in contact with the fixed plate 430, so that the pressing block 411 moves along the gravitational direction of the magnet 412. The pressing block 411 includes a first plane 4111 and a second plane 4112; the first plane 4111 and one side of the fixed plate 430 attract each other; the second plane 4112 contacts the scraper head 420, and contacts the scraper head 420 through the second plane 4112. Since the scraper head 420 is pressed on the workbench 500 , thereby limiting the contact between the first plane 4111 and the fixed plate 430, so that there is a gap between the first plane 4111 and the fixed plate 430, and the fixed plate 430 and the pressing block 411 tend to attract each other. After the scraper head 420 is worn, a gap is generated between the scraper head 420 and the workbench 500. At this time, under the action of the attraction between the fixed plate 430 and the pressing block 411, the scraper head 420 and the workbench 500 are re-tightened, and the gap between the fixed plate 430 and the pressing block 411 is reduced.

[0045] The pressing block 411 also includes a side surface 4113, and the scraping head 420 includes an inner wall surface 422. The side surface 4113 is in contact with the inner wall surface 422. The pressing block 411 and the scraping head 420 are fixed by the side surface 4113 and the inner wall surface 422 to prevent the pressing block 411 and the scraping head 420 from being disconnected during the process of the scraping head 420 wiping the glue.

[0046] In another embodiment, the pressing device is a spring, and the compressed spring rebounds, so that the pressing block 411 presses the scraper head 420, thereby pressing the scraper head 420 on the workbench 500. Compared with the above preferred embodiment, the following problems occur in the specific use process of using the spring to press the pressing block 411:

[0047] Since the spring presses downward, the force-bearing area of ​​the pressure block 411 is smaller, so that during the scraping process of the scraper head 420, the pressure block 411 shakes due to the force transmitted from the scraper head 420, thereby affecting the scraping effect of the scraper head 420; since the spring has a certain length, the height of the entire mechanism needs to be increased, and the stability of the mechanism decreases while the height of the mechanism is increased.

[0048] Therefore, in the preferred embodiment, the magnet 412 is embedded in the pressing block 411, and the upper surface of the magnet 412 is flush with the pressing block 411, and the height of the mechanism does not change. At the same time, since the magnet 412 is laid on the pressing block 411, the force area between the magnet 412 and the fixed plate 430 is larger, and it is not easy to shake, making the operation of the entire mechanism more stable.

[0049] like Figure 7 , 8As shown, the glue spraying device with a scraping mechanism includes a scraping component 400 and a glue tank 200; a through-flow channel 4115 is provided on the lower pressing member 410, and an interface 4114 is connected to the flow channel 4115, which is connected to the glue tank 200 through the interface 4114, and a component for glue spraying is arranged in the scraping component 400, so that the scraping and glue spraying structures are integrated into one mechanism, thereby simplifying the structure; Figure 6 As shown, a glue injection groove 511 is opened on the working surface 510 of the workbench 500, and the position of the flow channel 4115 corresponds to the position of the glue injection groove 511. In order to facilitate the glue spraying of the working area on the workbench 500, the scraper head 420 is set to be through so that the glue is sprayed out from the flow channel 4115 through the scraper head 420 and sprayed onto the workbench 500. At the same time, the opening of the flow channel 4115 is smaller than the inner ring of the scraper head 420. The scraper head 420 includes a scraping surface 421, and the scraping surface 421 is in contact with the working surface 510 of the workbench 500. The scraper head 420 is pressed by the lower pressing piece 410 to form a closed space in the scraper head 420, so that the glue can only flow in the area surrounded by the scraper head 420, which is convenient for the gathering of glue. Since the height of the glue injection groove 511 is lower than the working surface 510, the glue injection groove 511 serving as the glue spraying area is filled first.

[0050] The glue spraying device also includes a bracket 100 and a driving component 300. A fixed plate 430 and a driving component 300 are installed on the bracket 100. The driving component 300 includes a driver 310 and a moving block 320. A workbench 500 is installed on the moving block 320. The moving block 320 is installed on the movable end of the driver 310. The moving block 320 is driven by the driver 310 to move the workbench 500, thereby scraping off the glue on the working surface 510 and retaining the glue in the glue injection groove 511. The driver 310 then pushes the workbench 500 away from the scraping component 400 to take out the glue in the glue injection groove 511.

[0051] like Fig. 9 As shown, a detector 330 is installed on one side of the driver 310, and the detector 330 is used to detect the position of the workbench 500. In a preferred embodiment, the number of the detectors 330 is three, two of which are used to detect the position of the workbench 500 during the erasing process, so that the driver 310 is controlled to reciprocate through the two detectors 330, and the workbench 500 performs the erasing step. The other detector 330 is placed at a position away from the scraping assembly 400. When the erasing is completed, the workbench 500 is pushed out. After the detector 330 detects the position of the workbench 500, the driver 310 is controlled to stop working to avoid the workbench 500 from colliding with the driving assembly 300.

[0052] The present invention provides a glue scraping mechanism and a glue spraying device containing the glue scraping mechanism, which ensure that the scraper head is pressed on the workbench. When the scraper head is worn, external force will press the scraper head on the workbench again, thereby realizing automatic wear compensation; a flow channel and an interface for glue injection are arranged in the scraping component, and the glue dispensing component is integrated with the scraping component, thereby simplifying the structure; in the glue spraying device, the scraper head is arranged on the periphery of the glue spraying area, and the scraper head is pressed on the workbench by using the scraping component, so that glue cannot overflow from the glue spraying area during the glue spraying process; the position of the workbench is detected by a detector, thereby controlling the operation of the driver, so that the mechanism is light and compact, simple in structure, and easy to use.

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A scraping mechanism, comprising a scraping assembly (400), Features: The scraping assembly (400) comprises a pressing member (410) and a scraping head (420); The pressing member (410) is provided with a force directed toward the scraping head (420), and the scraping head (420) is pushed by the pressing member (410) so that the scraping head (420) is pressed against the workbench (500); the scraping head (420) rubs against the workbench (500) to remove glue adhered to the workbench (500); When the scraper head (420) is worn, the pressing member (410) is forced to keep the scraper head (420) in contact with the workbench (500); The pressing member (410) comprises a pressing block (411), and the scraping assembly (400) further comprises a magnet (412) and a fixing plate (430) for fixing the scraping assembly (400), wherein the pressing block (411) and the fixing plate (430) are attracted to each other by the magnet (412), thereby forming a force for maintaining the scraping head (420) in contact with the workbench (500); The magnet (412) is disposed on the pressing block (411), and the magnet (412) is arranged on both sides of the pressing block (411); The pressing block (411) comprises a first plane (4111) and a second plane (4112); The first plane (4111) and one surface of the fixing plate (430) attract each other; The second plane (4112) is in contact with the scraper head (420). The contact between the second plane (4112) and the scraper head (420) limits the contact between the first plane (4111) and the fixing plate (430), so that a gap exists between the first plane (4111) and the fixing plate (430).

2. A scraping mechanism as claimed in claim 1, Features: The pressing block (411) further comprises a side surface (4113), the scraping head (420) comprises an inner wall surface (422), and the side surface (4113) is in contact with the inner wall surface (422).

3. Glue spraying device with glue scraping mechanism, Features: It comprises a glue scraping mechanism and a glue tank (200) as claimed in any one of claims 1 to 2; The lower pressing member (410) is provided with a through-flow channel (4115), the flow channel (4115) is connected with an interface (4114), and is in communication with the glue tank (200) via the interface (4114); A glue injection groove (511) is provided on the working surface (510) of the workbench (500), the position of the flow channel (4115) corresponds to the position of the glue injection groove (511), and the scraper head (420) penetrates so that glue is sprayed out from the flow channel (4115), passes through the scraper head (420), and is sprayed onto the workbench (500).

4. The glue spraying device with a glue scraping mechanism as claimed in claim 3, Features: It also includes a bracket (100) and a driving assembly (300), wherein the fixing plate (430) and the driving assembly (300) are mounted on the bracket (100); The driving assembly (300) comprises a driver (310) and a moving block (320); the workbench (500) is mounted on the moving block (320); and the moving block (320) is mounted on a movable end of the driver (310); The driver (310) drives the workbench (500) to reciprocate, thereby achieving glue scraping.

5. The glue spraying device with a glue scraping mechanism as claimed in claim 4, Features: The opening of the flow channel (4115) is smaller than the size of the inner ring of the scraper head (420).

6. The glue spraying device with a glue scraping mechanism as claimed in claim 5, Features: The scraper head (420) comprises a scraping surface (421), and the scraping surface (421) fits with the working surface (510) of the working table (500), so that the inner ring of the scraper head (420) forms a closed space.

7. The glue spraying device with a glue scraping mechanism as claimed in claim 4, Features: A detector (330) is installed on one side of the driver (310), and the detector (330) is used to detect the position of the workbench (500).

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