Gluing head and gluing device

Abstract

The utility model relates to a gluing head and a gluing device. The gluing head comprises: a connector; the gluing pipe is arranged at one end of the connector, a gluing channel communicated to the connector is formed in the gluing pipe, the gluing pipe is provided with a first gluing hole and a second gluing hole which penetrate through the gluing channel, the first gluing hole is formed in the side face of the gluing pipe and faces the first surface, and the second gluing hole is obliquely formed in the end, away from the connector, of the gluing pipe; the first surface faces the second surface; wherein the glue outlet amount of the first gluing hole is smaller than that of the second gluing hole. In this way, the glue outlet amount of the first gluing hole is limited to be smaller than that of the second gluing hole, so that glue on the first surface and the second surface is reasonably distributed, and the situation that the glue on the first surface and the second surface is too much or too little is avoided; the rubber bodies on the first surface and the second surface can guarantee the sealing performance between the parts to be installed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of glue injection processing, in particular to a glue injection head and a glue injection device. BACKGROUND

[0002] Generally, the solar photovoltaic industry uses aluminum frames as the frames of solar cell modules to protect the laminated plates in the modules. For heterojunction cell modules, sealing glue needs to be injected into the mounting groove of the frame during the framing process of the heterojunction cell module.

[0003] During glue injection, the glue adheres to only one side surface (C surface) of the frame due to the influence of the inclined surface of the glue injection head, and the glue overflows to the other side surface (A surface) after extrusion. Generally, the mounting groove is like a U-shaped structure that clamps the edge of the glass, and the glue needs to be on both sides of the U-shaped structure to effectively prevent water vapor from penetrating.

[0004] At present, when the glue injection head injects glue into the A surface and the C surface of the mounting groove, the glue distribution of the A surface and the C surface is unreasonable, the amount of glue on the C surface decreases under the condition that the total amount of glue remains unchanged, which leads to the situation that there is too much glue on the A surface or too little glue on the A surface under the condition that the amount of glue is constant, and further causes the problem of poor sealing between the glass and the A surface, resulting in air leakage and water leakage at the edge of the photovoltaic module, affecting the power generation efficiency and service life of the photovoltaic module. CONTENT OF THE INVENTION

[0005] Therefore, it is necessary to provide a glue injection head and a glue injection device to solve the problem of poor sealing between the glass and the A surface caused by unreasonable glue distribution of the A surface and the C surface during glue injection by the glue injection head.

[0006] A glue injection head for injecting glue into a mounting groove of a to-be-installed part, the mounting groove having opposite first and second surfaces; the glue injection head comprising:

[0007] a connecting head;

[0008] a glue injection pipe arranged at one end of the connecting head, the glue injection pipe having a glue injection channel connected to the connecting head, the glue injection pipe having a first glue injection hole and a second glue injection hole penetrating the glue injection channel, the first glue injection hole being arranged on the side surface of the glue injection pipe and facing the first surface, and the second glue injection hole being arranged obliquely at the end of the glue injection pipe away from the connecting head and facing the second surface;

[0009] wherein the amount of glue discharged from the first glue injection hole is less than the amount of glue discharged from the second glue injection hole.

[0010] In an embodiment of the present application, the amount of glue discharged from the first glue injection hole is 1 / 5 to 1 / 2 of the amount of glue discharged from the second glue injection hole.

[0011] In an embodiment of the present application, the first glue injection hole and the second glue injection hole partially overlap along the height direction of the glue injection tube.

[0012] In an embodiment of the present application, the area of the first glue injection hole is 1 / 8 to 1 / 4 of the projection area of the second glue injection hole in the height direction.

[0013] In an embodiment of the present application, the mounting groove further has a glue overflow groove recessed in the first surface.

[0014] The bottom of the first glue injection hole is higher than the lower edge of the glue overflow groove.

[0015] In an embodiment of the present application, the distance between the bottom wall of the first glue injection hole and the bottom of the glue injection tube is 1 / 5 to 3 / 4 of the depth of the mounting groove.

[0016] In an embodiment of the present application, the bottom of the mounting groove is a third surface connecting the first surface and the second surface.

[0017] When the glue injection head injects glue into the mounting groove, the distance between the bottom of the glue injection tube and the third surface is greater than 2 mm.

[0018] In an embodiment of the present application, the shape of the first glue injection hole is circular, elliptical, rectangular, square, triangular, or rhombic.

[0019] And / or, the inclination angle of the second glue injection hole with respect to the height direction ranges from 30° to 60°.

[0020] A glue injection device includes a glue bucket, a workbench, a glue pump, a pipeline, and a glue injection head as described in any of the technical features above, one end of the pipeline is connected to the glue pump, and the other end extends into the glue bucket.

[0021] The glue injection tube is arranged on the workbench and moves with the workbench. The glue injection head is connected to the glue pump through a connecting head. The glue pump injects glue in the glue bucket into the glue injection head through the pipeline to inject glue into a glue injection object.

[0022] In an embodiment of the present application, the workbench drives the glue injection head to move at a speed below 500 mm / s.

[0023] And / or, the glue injection device further includes a controller that controls the glue pump to adjust the glue injection pressure of the glue pump.

[0024] The controller controls the glue injection pressure of the glue pump to range from 60 Pa to 80 Pa.

[0025] By means of the technical scheme, the application has at least the following technical effects:

[0026] The glue head and the glue injection device, the glue injection pipe has a hollow glue injection channel, the side of the glue injection pipe has a first glue injection hole penetrating to the glue injection channel, and the end of the glue injection pipe away from the connecting head has a second glue injection hole obliquely arranged and penetrating to the glue injection channel. After the glue head is inserted into the mounting groove of the to-be-glued part, the first glue injection hole faces the first surface, the second glue injection hole faces the second surface opposite to the first surface, and the glue injection amount of the first glue injection hole is greater than that of the second glue injection hole.

[0027] The glue head has the first glue injection hole and the second glue injection hole arranged oppositely on the glue injection pipe, the first surface is injected with glue through the first glue injection hole, the second surface is injected with glue through the second glue injection hole, the glue injection amount of the first glue injection hole is limited to be less than that of the second glue injection hole, the glue on the first surface and the second surface is reasonably distributed, the first surface and the second surface have sufficient glue, and the glue on the first surface and the second surface is prevented from being too much or too little, so that, after the to-be-mounted part is mounted in the mounting groove of the to-be-glued part, the glue on the first surface and the second surface can ensure the sealing between the to-be-mounted part and the to-be-glued part. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 FIG. 1 is a schematic view of the glue head in one view according to an embodiment of the application.

[0029] Figure 2 FIG. 2 is a schematic view of the glue head in another view according to the embodiment of the application. Figure 1

[0030] Figure 3 FIG. 3 is a perspective view of the glue head according to the embodiment of the application. Figure 1

[0031] Figure 4 FIG. 4 is a schematic view of the glue head and the to-be-glued part cooperating in one view according to the embodiment of the application. Figure 1

[0032] Figure 5 FIG. 5 is a schematic view of the glue head and the to-be-glued part cooperating in another view according to the embodiment of the application. Figure 4

[0033] Figure 6 FIG. 6 is a side view of the glue head and the to-be-glued part cooperating according to the embodiment of the application. Figure 5

[0034] Figure 7 FIG. 7 is a perspective view of the glue head and the to-be-glued part cooperating according to the embodiment of the application. Figure 6

[0035] Figure 8 FIG. 8 is a schematic view of the glue head and the to-be-glued part cooperating according to the embodiment of the application.​​​​​​Figure 1 A front view of the glue head.

[0036] Figure 9 A sectional view of the glue head at A-A. Figure 8 A sectional view of the glue head at A-A.

[0037] Figure 10 A sectional view of the glue head at A-A. Figure 8 A sectional view of the glue head at A-A.

[0038] Figure 11 A sectional view of the glue head at A-A. Figure 9 A sectional view of the glue head at A-A.

[0039] Figure 12 A sectional view of the glue head at A-A. Figure 1 A sectional view of the glue head at A-A.

[0040] Figure 13 A sectional view of the glue head at A-A.

[0041] Figure 14 A sectional view of the glue head at A-A. Figure 7 A sectional view of the glue head at A-A.

[0042] Figure 15 A schematic view of the glue device according to an embodiment of the present application.

[0043] Wherein: 100, glue head; 110, connecting head; 120, glue pipe; 121, glue channel; 122, first glue hole; 123, second glue hole; 124, first plate body; 125, second plate body; 130, connecting part; 200, glue object; 210, installation groove; 211, first surface; 212, second surface; 213, glue overflow groove; 214, third surface; 300, glue; 400, glue barrel; 500, glue pump; 600, pipeline; 700, workbench. DETAILED DESCRIPTION

[0044] In order to make the above objectives, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, a lot of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0045] In the description of the application, it should be understood that, if there are these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0046] In addition, if there are these terms "first", "second", these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0047] In this application, unless otherwise explicitly specified and limited, if there are terms such as "mounting", "connecting", "connecting", "fixing" and the like, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0048] In this application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "first feature on" or "below" the second feature, the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0049] It is to be noted that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar terms as used herein are for purposes of description only and are not meant to be limiting.

[0050] It can be understood that at present, in the process of assembling the heterojunction battery assembly, sealing glue needs to be injected into the mounting groove of the frame. When the glue is injected, due to the influence of the inclined surface of the glue head, the glue is only attached to one side surface (C surface) of the frame, and after extrusion, the glue overflows to the other side surface (A surface). Generally, the mounting groove like a U-shaped card holds the edge of the glass, and the glue needs to be on both sides of the U-shaped to effectively prevent water vapor from entering.

[0051] At present, when the glue head injects glue to the A surface and the C surface of the mounting groove, the glue amount of the A surface and the C surface is not reasonably distributed, and the glue amount of the C surface is less under the condition that the total glue amount is unchanged, which leads to the situation that the A surface has too much glue or too little glue under the condition that the glue amount is certain, and further causes the problem of insufficient sealing between the glass and the A surface, resulting in air leakage and water leakage of the edge of the photovoltaic module, affecting the power generation efficiency and service life of the photovoltaic module.

[0052] Therefore, referring to Figures 1 to 3 , the application provides a new glue injection head 100. Figure 1 The schematic view of the glue injection head 100 of an embodiment of the application from one perspective, Figure 2 The schematic view of the glue injection head 100 from another perspective, Figure 1 The perspective view of the glue injection head 100. Figure 3 The perspective view of the glue injection head 100. Figure 1 The perspective view of the glue injection head 100.

[0053] The glue injection head 100 is applied to a glue injection device (not shown) and is used for injecting glue 300 into a mounting groove 210 of a to-be-glued part 200. The edge of a to-be-mounted part (not shown) is arranged in the mounting groove 210, and both side surfaces of the to-be-mounted part can contact the mounting groove 210 of the to-be-mounted part through the glue 300, so as to realize the sealed connection between the to-be-glued part 200 and the to-be-mounted part and ensure the high sealing performance of the connection between the to-be-glued part 200 and the to-be-mounted part.

[0054] In the application, injecting the glue 300 into the mounting groove 210 of the to-be-glued part 200 is to inject glue, and in the following description of injecting the glue 300 into the mounting groove 210 by the glue injection head 100, sometimes the injection of glue is described.

[0055] Optionally, the glue body 300 is silica gel, which has good viscosity and can well realize the sealing between the to-be-glued member 200 and the to-be-installed member. Of course, in other embodiments of the present application, the glue body 300 can also be other glue capable of realizing the sealing and bonding.

[0056] In the embodiment, the to-be-glued member 200 is a frame of a photovoltaic module, and the to-be-installed member is tempered glass of the photovoltaic module. Generally, the edge of the tempered glass of the photovoltaic module is installed in the frame. After the glue body 300 is injected into the frame, the frame and the tempered glass are sealingly connected through the glue body 300, thereby ensuring the effective sealing of the photovoltaic module and preventing water vapor from entering the inside of the photovoltaic module, so as to ensure the service life and power generation efficiency of the photovoltaic module.

[0057] Of course, in other embodiments of the present application, the to-be-glued member 200 can also be other structure or component needing to be glued and sealed, and the to-be-installed member can also be other component needing to be installed to the to-be-glued member 200.

[0058] The present application only takes the to-be-glued member 200 as the frame of the photovoltaic module and the to-be-installed member as the tempered glass of the photovoltaic module as an example for description, and in the following description of the structure of the glue injection head 100, the to-be-glued member 200 is only taken as the frame of the photovoltaic module and the to-be-installed member is only taken as the tempered glass of the photovoltaic module for description.

[0059] To better illustrate the structure of the glue injection head 100, the structure of the to-be-glued member 200 is first introduced here. Referring to Figures 4 to 7 , Figure 4 To Figure 1 the schematic view of the cooperation between the glue injection head 100 and the to-be-glued member 200 from one perspective, Figure 5 to Figure 4 the schematic view of the cooperation between the glue injection head 100 and the to-be-glued member 200 from another perspective, Figure 6 to Figure 5 the side view of the cooperation between the glue injection head 100 and the to-be-glued member 200, Figure 7 to Figure 6 the perspective view of the cooperation between the glue injection head 100 and the to-be-glued member 200. The to-be-glued member 200 is arranged in a strip shape.

[0060] The to-be-glued member 200 has a recessed installation groove 210, which has a first surface 211 and a second surface 212 arranged opposite to each other, as shown in Figures 4 to 7 When the glue injection head 100 injects glue into the installation groove 210, glue is injected to the first surface 211 and the second surface 212, respectively. After the to-be-installed member is installed into the installation groove 210, the two side surfaces of the to-be-installed member are sealingly contacted with the first surface 211 and the second surface 212 through the glue body 300, so as to ensure the sealing performance between the to-be-glued member 200 and the to-be-installed member.

[0061] The mounting groove 210 also has a third surface 214, which is the bottom surface of the mounting groove 210 and connects the first surface 211 and the second surface 212. When the dispensing head 100 injects the adhesive 300 into the first surface 211 and the second surface 212, the adhesive 300 has good fluidity and can flow from the first surface 211 and the second surface 212 to the third surface 214.

[0062] After the component to be installed is placed into the mounting groove 210, the surface of the component to be installed is pressed against the first surface 211 of the component to be glued 200 and squeezed into the mounting groove 210, and then against the second surface 212 of the component to be glued 200, until the bottom of the component to be installed touches the third surface 214 of the component to be glued 200, at which point the component to be installed stops moving. At this time, the first surface 211, the second surface 212, and the third surface 214 all have adhesive 300 in contact with the surface of the component to be installed.

[0063] After the colloid 300 cures, the colloid 300 on the first surface 211, the colloid 300 on the second surface 212, and the colloid 300 on the third surface 214 can completely seal the part to be glued 200 and the part to be installed. The mounting groove 210 of the part to be glued 200 is completely sealed, and water vapor cannot enter, thus ensuring the sealing between the part to be installed and the part to be glued 200.

[0064] The directions of this application are up, down, left, right, front, and back. Figure 1 and Figure 4 Using the directions shown as a reference, the vertical direction of the dispensing head 100 represents the height direction, top-to-bottom direction, and extension direction; the horizontal direction of the dispensing head 100 represents the width direction; and the front-to-back direction of the dispensing head 100 represents the thickness direction. The mounting groove 210 is recessed along the height direction, and the first surface 211 and the second surface 212 are positioned opposite each other along the thickness direction. The part to be glued 200 extends along the width direction. The height direction, width direction, and thickness direction will not be described again in the following text.

[0065] The dispensing head 100 of this application can simultaneously inject adhesive 300 into the first surface 211 and the second surface 212, and limits the amount of adhesive dispensed from the first dispensing hole 122 to be less than the amount dispensed from the second dispensing hole 123, so as to reasonably distribute the adhesive 300 on the first surface 211 and the second surface 212, ensuring that both the first surface 211 and the second surface 212 have sufficient adhesive 300, and avoiding the situation of too much or too little adhesive 300 on the first surface 211 and the second surface 212. In this way, after the mounting part to be installed is installed in the mounting groove 210 of the part to be glued 200, the adhesive 300 on the first surface 211 and the second surface 212 can ensure the sealing between the part to be installed and the part to be installed.

[0066] The following describes the specific structure of a glue applicator 100 according to an embodiment.

[0067] Referring to Figures 1 to 7 In an embodiment, the glue dispensing head 100 comprises a connecting head 110 and a glue dispensing pipe 120. The glue dispensing pipe 120 is arranged at one end of the connecting head 110, and the glue dispensing pipe 120 has a glue dispensing channel 121 connected to the connecting head 110. The glue dispensing pipe 120 has a first glue dispensing hole 122 and a second glue dispensing hole 123 penetrating the glue dispensing channel 121. The first glue dispensing hole 122 is arranged at the side of the glue dispensing pipe 120 and faces the first surface 211. The second glue dispensing hole 123 is arranged obliquely at the end of the glue dispensing pipe 120 away from the connecting head 110 and faces the second surface 212. The glue dispensing amount of the first glue dispensing hole 122 is less than that of the second glue dispensing hole 123.

[0068] The connecting head 110 is a connecting part 130 of the glue dispensing head 100. The top of the connecting head 110 is used to connect the glue pump 500 of the glue dispensing device, and the bottom of the connecting head 110 is connected to the glue dispensing pipe 120. The connecting head 110 and the glue dispensing pipe 120 are hollowly arranged, and the hollow cavity of the glue dispensing head 100 is the glue dispensing channel 121. The glue pump 500 delivers the glue 300 to the glue dispensing channel 121 through the connecting head 110, and then injects it into the mounting groove 210 through the glue dispensing head 100.

[0069] The side of the glue dispensing pipe 120 has the first glue dispensing hole 122. That is, as shown in Figure 1 , Figure 6 and Figure 7 , the first glue dispensing hole 122 is located at the left side of the glue dispensing pipe 120. The first glue dispensing hole 122 penetrates the pipe wall of the glue dispensing pipe 120 along the thickness direction of the glue dispensing pipe 120 and is connected to the glue dispensing channel 121.

[0070] The end of the glue dispensing pipe 120 away from the connecting head 110 is referred to as the bottom of the glue dispensing pipe 120. The bottom of the glue dispensing pipe 120 has an inclined second glue dispensing hole 123. That is, as shown in Figure 1 , Figure 6 and Figure 7 , the first glue dispensing hole 122 is located at the left side of the glue dispensing pipe 120, and the second glue dispensing hole 123 faces the right side of the glue dispensing pipe 120. The glue dispensing channel 121 penetrates the bottom wall of the glue dispensing pipe 120 along the height direction of the glue dispensing pipe 120 to form the second glue dispensing hole 123 at the bottom of the glue dispensing pipe 120.

[0071] The first glue dispensing hole 122 and the second glue dispensing hole 123 are both connected to the glue dispensing channel 121, and the orientations of the first glue dispensing hole 122 and the second glue dispensing hole 123 are opposite. That is, the first glue dispensing hole 122 and the second glue dispensing hole 123 face the two sides of the thickness direction of the glue dispensing pipe 120. In this way, after the bottom of the glue dispensing head 100 extends into the mounting groove 210, the first glue dispensing hole 122 faces the first surface 211, and the second glue dispensing hole 123 faces the second surface 212.

[0072] When the glue head 100 glues the mounting groove 210, the glue 300 enters the glue channel 121 of the glue pipe 120 through the connecting head 110, and the glue 300 in the glue channel 121 enters the mounting groove 210 through the first glue hole 122 and the second glue hole 123 and adheres to the first surface 211. The glue 300 in the glue channel 121 enters the mounting groove 210 through the second glue hole 123 and adheres to the second surface 212.

[0073] At the same time, the inclined second glue hole 123 can also inject part of the glue 300 into the third surface 214. Since the glue 300 has a certain fluidity, the glue 300 on the first surface 211 and the second surface 212 can also flow to the third surface 214. In this way, when the glue head 100 glues the mounting groove 210, the glue 300 can be coated on the first surface 211, the second surface 212 and the third surface 214.

[0074] Hereinafter, when the glue head 100 glues the mounting groove 210, only the glue head 100 glues the first surface 211 and the second surface 212 as an example will be described, and the glue to the third surface 214 will not be described.

[0075] At the same time, the glue output of the first glue hole 122 is less than the glue output of the second glue hole 123. That is, the glue output of the second glue hole 123 arranged at the bottom of the glue pipe 120 is greater than the glue output of the first glue hole 122 arranged on the side of the glue pipe 120.

[0076] It can be understood that along the height direction of the glue pipe 120, the first glue hole 122 is at least partially located above the second glue hole 123, and in addition, the glue 300 has a certain viscosity. The glue 300 in the glue pipe 120 first reaches the first glue hole 122 and then reaches the second glue hole 123.

[0077] After limiting the glue output ratio of the first glue hole 122 and the second glue hole 123, it can be ensured that the glue amount injected into the first surface 211 and the second surface 212 is roughly balanced, so as to reasonably allocate the amount of the first surface 211 and the second surface 212. At the same time, it also can realize the precise control of the glue output of the first glue hole 122 and the second glue hole 123, ensure the sealing effect of the to-be-mounted part and the to-be-glued part 200 at the connection, and reduce the glue amount.

[0078] Reference Figures 1 to 7When the glue head 100 of the application is used to glue the installation groove 210 of the to-be-glued part 200, the glue 300 enters the glue channel 121 of the glue pipe 120 through the connecting head 110, and then the glue 300 in the glue pipe 120 is injected into the first surface 211 through the first glue hole 122, so that the glue 300 adheres to the first surface 211, and the glue 300 is injected into the second surface 212 through the second glue hole 123 and adheres to the second surface 212.

[0079] When the to-be-installed part is installed into the installation groove 210, the surface of the to-be-installed part is extruded into the installation groove 210 and is close to the second surface 212 of the to-be-glued part 200 until the bottom of the to-be-installed part touches the third surface 214 of the to-be-glued part 200, and the to-be-installed part stops moving. At this time, the first surface 211, the second surface 212 and the third surface 214 are in contact with the surface of the to-be-installed part.

[0080] When the glue 300 solidifies, the glue 300 at the first surface 211, the glue 300 at the second surface 212 and the glue 300 at the third surface 214 can completely seal the to-be-glued part 200 and the to-be-installed part, and a sealed space is formed in the installation groove 210 of the to-be-glued part 200, so that water vapor cannot enter, thereby ensuring the sealing between the to-be-glued part 200 and the to-be-installed part.

[0081] The glue head 100 of the application can glue the first surface 211 and the second surface 212 at the same time, so as to reasonably distribute the glue 300 on the first surface 211 and the second surface 212, and make the first surface 211 and the second surface 212 have glue 300. After the edge of the to-be-installed part is installed into the installation groove 210, the two surfaces of the to-be-installed part are respectively adhered to the first surface 211 and the second surface 212 through the glue 300, thereby ensuring the sealing between the to-be-glued part 200 and the to-be-installed part.

[0082] In this way, the first surface 211 does not need to be bonded to the to-be-installed part by overflow gluing, thereby avoiding the case that the second surface 212 has no glue. The glue head 100 can make the first surface 211 and the second surface 212 have enough glue 300, realize effective sealing between the to-be-glued part 200 and the to-be-installed part, and effectively prevent water vapor from entering from the surrounding.

[0083] The dispensing head 100 of the above embodiment has a first dispensing hole 122 and a second dispensing hole 123 facing opposite directions on the dispensing tube 120. Adhesive 300 is injected into the first surface 211 through the first dispensing hole 122 and into the second surface 212 through the second dispensing hole 123. At the same time, the amount of adhesive dispensed from the first dispensing hole 122 is limited to be less than that dispensed from the second dispensing hole 123, so as to reasonably distribute the adhesive 300 on the first surface 211 and the second surface 212, ensuring that both the first surface 211 and the second surface 212 have sufficient adhesive 300, and avoiding the situation of too much or too little adhesive 300 on the first surface 211 and the second surface 212. In this way, after the mounting part to be installed is installed in the mounting groove 210 of the part to be glued 200, the adhesive 300 on the first surface 211 and the second surface 212 can ensure the sealing between the part to be installed and the part to be installed.

[0084] See Figures 1 to 3 , Figure 8 and Figure 9 In one embodiment, the glue applicator 120 includes at least a first plate 124 and a second plate 125 facing each other, the first plate 124 facing the first surface 211 and the second plate 125 facing the second surface 212, the first plate 124 having a first glue applicator hole 122 and the second plate 125 having a second glue applicator hole 123. Figure 8 for Figure 1 The front view of the glue applicator 100 shown. Figure 9 for Figure 8 The cross-sectional view of the dispensing head 100 at point AA is shown.

[0085] The glue applicator 120 has a first plate 124 and a second plate 125 opposite each other in the thickness direction. The first plate 124 has a first glue applicator hole 122 that extends through the thickness direction and faces the first surface 211. The dimension of the first plate 124 in the height direction is smaller than the dimension of the second plate 125 in the height direction, so that the bottom of the first plate 124 and the bottom of the second plate 125 can form an inclined second glue applicator hole 123, which faces the second surface 212.

[0086] In this way, the first glue-applying hole 122 and the second glue-applying hole 123 are arranged in opposite ways and are both connected to the inner cavity of the glue-applying tube 120. This allows the first glue-applying hole 122 to apply glue to the first surface 211 and the second glue-applying hole 123 to apply glue to the second surface 212. This ensures that the amount of glue 300 meets the sealing requirements between the part to be installed and the part to be glued 200, while reducing the amount of glue 300 used and lowering costs.

[0087] In this embodiment, the glue applicator 120 is roughly square in shape, such as... Figures 1 to 9As shown. Of course, in other embodiments of this application, the glue applicator 120 may also be circular, polygonal or other shapes, as long as the first glue applicator hole 122 is aligned with the first surface 211 and the second glue applicator hole 123 is aligned with the second surface 212.

[0088] See Figures 1 to 3 , Figure 8 and Figure 9 In one embodiment, the dispensing head 100 further includes a connecting portion 130, which connects the dispensing tube 120 and the connector 110. The connecting portion 130 is located between the connector 110 and the dispensing tube 120, and is used to achieve a transition connection between the connector 110 and the dispensing tube 120.

[0089] It is worth noting that the shape of the connecting part 130 is not limited in principle, as long as it can seamlessly connect the glue applicator tube 120 and the connector 110. Optionally, the connector 110, the connecting part 130, and the glue applicator tube 120 can be integrated into one piece. This ensures the sealing of the glue applicator head 100 at the connection point and prevents leakage from the joint during the glue application process.

[0090] See Figures 1 to 9 In one embodiment, the amount of adhesive dispensed from the first adhesive dispensing hole 122 is 1 / 5 to 1 / 2 of the amount of adhesive dispensed from the second adhesive dispensing hole 123. That is, the ratio of the amount of adhesive dispensed from the first adhesive dispensing hole 122 to the amount of adhesive dispensed from the second adhesive dispensing hole 123 is in the range of 1 / 5 to 1 / 2.

[0091] This allows for precise control of the amount of adhesive dispensed from the first adhesive dispensing hole 122 and the second adhesive dispensing hole 123, ensuring that the amount of adhesive on the first surface 211 and the second surface 212 is roughly equal. At the same time, it also prevents the adhesive 300 on the first surface 211 from overflowing onto the outside of the mounting groove 210, ensuring the sealing effect at the connection between the part to be installed and the part to be glued 200, and reducing the amount of adhesive.

[0092] See Figure 3 , Figures 7 to 11 In one embodiment, along the height direction of the glue applicator 120, the first glue applicator hole 122 and the second glue applicator hole 123 partially overlap. Figure 10 for Figure 8 The image shown is a magnified view of the glue applicator 100 at point B. Figure 11 for Figure 9 A magnified view of the dispensing head 100 at point C.

[0093] The first glue hole 122 and the second glue hole 123 partially overlap in the height direction of the glue dispensing pipe 120. Specifically, the lower part of the first glue hole 122 overlaps with the upper part of the second glue hole 123. The second glue hole 123 is inclined, and the upper part of the second glue hole 123 corresponds to the upper part of the first glue hole 122.

[0094] In this way, during glue dispensing, the glue 300 can enter the first glue hole 122 and the second glue hole 123 at approximately the same time in the glue dispensing channel 121, and the glue 300 cannot only pass through the first glue hole 122 to be injected into the mounting groove 210, thereby ensuring the synchronization of glue dispensing on the first surface 211 and the second surface 212.

[0095] Referring to Figures 9 to 13 In an embodiment, the area of the first glue hole 122 is smaller than the projection area of the second glue hole 123 in the height direction. Figure 12 To Figure 1 The rear view of the glue dispensing head 100 is shown in FIG. 12, Figure 13 The local enlarged view of the glue dispensing head 100 at D shown in FIG. 12 is shown in FIG. 13.

[0096] The projection area of the second glue hole 123 in the height direction, that is, the area of the second glue hole 123 after being projected in the rear view direction, is a rectangular area as shown in FIG. 14, which is larger than the longitudinal cross-sectional area of the first glue hole 122. Figure 13

[0097] After the areas of the first glue hole 122 and the second glue hole 123 are limited, the glue dispensing amount of the first glue hole 122 and the second glue hole 123 can be limited, and the control of the glue dispensing amount of the glue dispensing head 100 during glue dispensing is more accurate, thereby achieving precise control of the glue dispensing amount, reducing the glue amount while ensuring the sealing effect of the to-be-mounted member and the to-be-glued member 200 at the connection.

[0098] Referring to Figures 9 to 13 In an embodiment, the area of the first glue hole 122 is 1 / 8 to 1 / 4 of the projection area of the second glue hole 123 in the height direction. That is, the ratio of the area of the first glue hole 122 to the projection area of the second glue hole 123 in the height direction is within the range of 1 / 8 to 1 / 4.

[0099] Due to the partial overlap of the first glue hole 122 and the second glue hole 123, and the viscosity of the glue 300, after the area of the first glue hole 122 and the projection area of the second glue hole in the height direction are limited within the above range, the glue dispensing effect of the first surface 211 and the second surface 212 can be ensured, thereby ensuring the sealing effect of the to-be-mounted member and the to-be-glued member 200 at the connection.

[0100] Referring to​Figure 7 and Figure 14 In an embodiment, the installation groove 210 further has a glue overflow groove 213 recessed on the first surface 211. The bottom of the first glue injection hole 122 is higher than the lower edge of the glue overflow groove 213. Figure 14 For Figure 7 A partial enlarged view of the glue injection head 100 cooperating with the to-be-glued part 200 at E is shown.

[0101] The glue 300 is injected into the glue overflow groove 213, and the glue 300 can overflow from the glue overflow groove 213 after gradually filling the glue overflow groove 213. In this way, the glue overflow groove 213 can accommodate more glue 300 and prevent too much glue 300 from moving out. When the surface of the to-be-installed part contacts the first surface 211, the glue 300 overflowing from the glue overflow groove 213 can contact the surface of the to-be-installed part, ensuring the sealing between the to-be-glued part 200 and the to-be-installed part.

[0102] After the bottom of the first glue injection hole 122 is higher than the lower edge of the glue overflow groove 213, the first glue injection hole 122 can directly inject the glue 300 into the glue overflow groove 213, and overflow the glue through the glue overflow groove 213 to the first surface 211, so that the glue 300 exists on both the first surface 211 and the second surface 212, ensuring that the glue amount of each part of the installation groove 210 is roughly balanced, and ensuring the sealing between the to-be-glued part 200 and the to-be-installed part.

[0103] At the same time, after the first glue injection hole 122 injects the glue 300 into the glue overflow groove 213, it can avoid the excess glue 300 outside the glue overflow groove 213, and also avoid the existence of cavities and other phenomena in the glue overflow groove 213, ensuring better adhesion between the to-be-installed part and the to-be-glued part 200, and further making the to-be-glued part 200 have greater advantages in terms of load and other aspects, and improving the structural strength of the to-be-glued part 200.

[0104] After the bottom wall of the first glue injection hole 122 is higher than the lower edge of the glue overflow groove 213, the opening of the first glue injection hole 122 can be kept at the position of the glue overflow groove 213, and the shape of the first glue injection hole 122 can be reasonably selected according to the height of the glue overflow groove 213, so that the bottom wall of the first glue injection hole 122 is higher than the lower edge of the glue overflow groove 213, thereby ensuring that the glue 300 can accurately enter the glue overflow groove 213.

[0105] Referring to Figure 10 and Figure 14 In an embodiment, the distance between the bottom wall of the second glue injection hole 123 and the bottom of the glue injection pipe 120 is 1 / 5-3 / 4 of the depth of the installation groove 210. The distance between the bottom wall of the first glue injection hole 122 and the bottom of the glue injection pipe 120 is h1, and the depth of the installation groove 210 is h2.

[0106] That is, the distance h1 between the bottom wall of the first glue injection hole 122 and the bottom of the glue injection tube 120 is 1 / 5-3 / 4 of the depth h2 of the mounting groove 210. In this way, after the glue injection head 100 extends into the mounting groove 210 of the glue injection object 200, the first glue injection hole 122 is located in the mounting groove 210 and faces the glue overflow groove 213 of the first surface 211.

[0107] In this way, when the glue injection head 100 injects the glue 300 into the mounting groove 210 through the first glue injection hole 122, a sufficient amount of glue 300 can fill the glue overflow groove 213. When the mounting object is mounted into the mounting groove 210 of the glue injection object 200, the glue overflow groove 213 has sufficient glue 300, so that the first surface 211 can be tightly attached to the mounting object and ensure the sealing between the glue injection object 200 and the mounting object.

[0108] Referring to Figure 14 In an embodiment, the bottom of the mounting groove 210 is a third surface 214, and the third surface 214 connects the first surface 211 and the second surface 212. When the glue injection head 100 injects the glue 300 into the mounting groove 210, the distance between the bottom of the glue injection tube 120 and the third surface 214 is greater than 2 mm.

[0109] That is, the bottom of the glue injection head 100 does not contact the third surface 214. After the glue injection head 100 extends into the mounting groove 210, there is a certain gap between the bottom of the glue injection head 100 and the third surface 214, and the gap is greater than 2 mm. When the glue injection head 100 moves, the bottom of the glue injection head 100 does not contact the third surface 214.

[0110] Since the bottom of the glue injection head 100 does not contact the third surface 214, the glue injection head 100 will not damage the glue shape of the third surface 214 when moving, so that the shape of the glue 300 of the third surface 214 is regular. In this way, after the mounting object is mounted into the mounting groove 210, the glue 300 of the third surface 214 will not generate bubbles, so as to ensure the sealing of the connection between the mounting object and the glue injection object 200.

[0111] Referring to Figures 1 to 4 , Figures 9 to 13 In an embodiment, the shape of the first glue injection hole 122 is circular, elliptical, oblong, rectangular, square, or diamond. It can be understood that the shape of the first glue injection hole 122 is not limited in principle, as long as the glue 300 can be injected into the second surface 212.

[0112] In this embodiment, the shape of the first glue injection hole 122 is oblong. Of course, in other embodiments of the present application, the shape of the first glue injection hole 122 can also be rectangular, circular, or other regular or irregular shapes.

[0113] In an embodiment, the second glue injection hole 123 is inclined to the height direction at an angle ranging from 30° to 60°. After the to-be-installed part is installed into the installation groove 210, the second glue injection hole 123 can inject glue 300 to the second surface 212 and the third surface 214.

[0114] When the glue head 100 of the present application is used to glue the installation groove 210 of the to-be-glued part 200, the glue 300 enters the glue injection channel 121 of the glue injection pipe 120 through the connecting head 110, and then the glue 300 in the glue injection pipe 120 is injected into the glue overflow groove 213 through the first glue injection hole 122, so that the glue 300 adheres to the first surface 211. The glue 300 is injected into the second surface 212 through the second glue injection hole 123 and adheres to the second surface 212.

[0115] When the to-be-installed part is installed into the installation groove 210, the surface of the to-be-installed part is pressed into the installation groove 210 and is close to the second surface 212 of the to-be-glued part 200 until the bottom of the to-be-installed part touches the third surface 214 of the to-be-glued part 200, and the to-be-installed part stops moving. At this time, the first surface 211, the second surface 212 and the third surface 214 are in contact with the surface of the to-be-installed part.

[0116] When the glue 300 solidifies, the glue 300 at the first surface 211, the glue 300 at the second surface 212 and the glue 300 at the third surface 214 can completely seal the to-be-glued part 200 and the to-be-installed part, and completely form a sealed space in the installation groove 210 of the to-be-glued part 200, so that water vapor cannot enter, thereby ensuring the sealing between the to-be-glued part 200 and the to-be-installed part.

[0117] In this way, the glue head 100 of the present application can simultaneously glue the first surface 211 and the second surface 212, and by limiting the amount of glue injected by the first glue injection hole 122 and the second glue injection hole 123, the first surface 211 and the second surface 212 both have glue 300. After the edge of the to-be-installed part is installed into the installation groove 210, the two surfaces of the to-be-installed part are respectively attached to the first surface 211 and the second surface 212 through the glue 300, thereby ensuring the sealing between the to-be-glued part 200 and the to-be-installed part.

[0118] In this way, the second surface 212 does not need to be bonded to the to-be-installed part by overflow glue, thereby avoiding the situation that the first surface 211 has no glue, and the glue head 100 can make the first surface 211 and the second surface 212 have sufficient glue 300, thereby realizing effective sealing between the to-be-glued part 200 and the to-be-installed part and effectively preventing water vapor from entering from the surrounding.

[0119] Meanwhile, after the glue 300 is filled in the overflow groove 213, the glue 300 is closer to the upper side of the mounting groove 210 and is away from the third surface 214 by a certain distance, so that the water blocking effect is better, the sealing between the to-be-glued part 200 and the to-be-mounted part is further ensured, and the hollow phenomenon in the overflow groove 213 is avoided, so that the adhesion between the to-be-mounted part and the to-be-glued part 200 is better, and the to-be-glued part 200 has greater advantages in load and the like, and the structural strength of the to-be-glued part 200 is improved.

[0120] The glue head 100 of the present application is provided with the first glue injection hole 122 and the second glue injection hole 123 which are oppositely arranged on the glue injection pipe 120, the glue 300 is injected to the first surface 211 through the first glue injection hole 122, and the glue 300 is injected to the second surface 212 through the second glue injection hole 123, and the amount of glue injected through the first glue injection hole 122 is less than that through the second glue injection hole 123, so that the glue 300 on the first surface 211 and the second surface 212 is reasonably distributed, and the first surface 211 and the second surface 212 are ensured to have enough glue 300, so that the first surface 211 and the second surface 212 are prevented from having too much or too little glue 300, and the sealing between the to-be-mounted part and the first surface 211 and the second surface 212 of the to-be-glued part 200 is ensured after the to-be-mounted part is mounted in the mounting groove 210 of the to-be-glued part 200.

[0121] When the glue head 100 of the present application is used to glue the frame of the photovoltaic module, the glue 300 is injected to the first surface 211 through the first glue injection hole 122, and the glue 300 is injected to the second surface 212 through the second glue injection hole 123, so that the first surface 211 and the second surface 212 have enough glue 300.

[0122] When the tempered glass is mounted, the glue 300 on the first surface 211 and the second surface 212 is extruded by the tempered glass, the mounting groove 210 of the frame is further filled, the gap of the mounting groove 210 is filled with the glue 300, and the water blocking adhesive tape is covered. After the glue 300 is solidified, the frame and the tempered glass are tightly adhered, the glue 300 and the water blocking adhesive tape play a double protection role, and the probability of rainwater introduction is greatly reduced.

[0123] Meanwhile, the size of the glue injection amount can be controlled by the opening size of the first glue injection hole 122 and the second glue injection hole 123 and the pressure of the glue pump 500, so that the glue amount is controllable, the glue 300 will not overflow to the surface of the to-be-mounted part, the cleaning difficulty is reduced, and the to-be-mounted part is prevented from being scratched due to cleaning. Moreover, the frame assembling machine does not need to be specially debugged, and the frame can be assembled in a normal state, so that the equipment debugging time is reduced.

[0124] The application can utilize the original glue hitting head 100, that is, the main body structure of the glue hitting head 100 is not changed, the bottom structure of the glue hitting pipe 120 is changed, and the first glue hitting hole 122 and the second glue hitting hole 123 are opened on the glue hitting pipe 120. In this way, the glue hitting head 100 can be seamlessly compatible with the current glue hitting device.

[0125] Moreover, after the positions, glue amount and area of the first glue hitting hole 122 and the second glue hitting hole 123 are limited, the glue hitting head 100 can more accurately control the amount of glue during glue hitting, reduce the risk of contamination of the glue 300 at the first surface 211 of the to-be-glued part 200, facilitate cleaning of the excess glue 300 after the to-be-glued part 200 and the to-be-mounted part are assembled, improve the operation efficiency, and reduce the production cost.

[0126] The glue hitting head 100 of the application limits the position of the first glue hitting hole 122, the positions of the first glue hitting hole 122 and the second glue hitting hole 123, the glue amount and the area, so as to adjust the glue amount of the glue hitting head 100, thereby ensuring that the glue shape appearance meets the sealing requirements of the to-be-mounted surface.

[0127] Referring to Figure 7 and Figure 15 , the application also provides a glue hitting device, which comprises a glue barrel 400, a workbench 700, a glue pump 500, a pipeline 600 and the glue hitting head 100 of any one of the above embodiments. One end of the pipeline 600 is connected to the glue pump 500, and the other end extends into the glue barrel 400. The glue hitting pipe 120 is arranged on the workbench 700 and moves with the workbench 700. The glue hitting head 100 is connected to the glue pump 500 through the connecting head 110. The glue pump 500 injects the glue 300 in the glue barrel 400 into the glue hitting head 100 through the pipeline 600, so as to inject the glue 300 into the to-be-glued part 200. Figure 15 FIG. 1 is a schematic view of a glue hitting device according to an embodiment of the application.

[0128] The glue barrel 400 is a container for storing the glue 300. One end of the pipeline 600 extends into the glue barrel 400, and the other end of the pipeline 600 is connected to the glue pump 500. The glue pump 500 is a power source of the glue hitting device, and the glue pump 500 is connected to the connecting head 110 of the glue hitting head 100. The glue pump 500 can extract the glue 300 in the glue barrel 400 and inject it into the glue hitting pipe 120.

[0129] When the glue pump 500 works, the glue pump 500 can extract the glue 300 in the glue barrel 400. The glue 300 can enter the pipeline 600 and enter the glue hitting channel 121 of the glue hitting head 100 through the glue pump 500. Then, the glue 300 is injected into the overflow groove 213 of the mounting groove 210 and the second surface 212 through the first glue hitting hole 122 and the second glue hitting hole 123.

[0130] And, the glue pump 500 is installed to the workbench 700, the workbench 700 can drive the glue pump 500 and the glue head 100 to move in the three-dimensional space, so as to adjust the position of the glue head 100 in the three-dimensional space, so that the glue head 100 can extend into or move out of the installation groove 210 of the to-be-glued part 200. Optionally, the workbench 700 can adopt the current three-axis moving structure and the like.

[0131] The glue head 100 of the glue device of the present application adopts the above-mentioned embodiment, and can simultaneously glue the first surface 211 and the second surface 212 of the to-be-glued part 200, and the glue output of the first glue hole 122 is less than that of the second glue hole 123, so as to ensure that the first surface 211 and the second surface 212 have sufficient glue 300, and avoid the situation that the first surface 211 and the second surface 212 have too much or too little glue 300. After the to-be-installed part is installed in the installation groove 210 of the to-be-glued part 200, the glue 300 of the first surface 211 and the second surface 212 can ensure the sealing between the to-be-installed part.

[0132] Referring to Figure 7 and Figure 15 In an embodiment, the workbench 700 drives the moving speed of the glue head 100 to be below 500 mm / s. It can be understood that the moving speed of the glue head 100 will affect the stability of the glue head 100, and therefore, the present application limits the moving speed of the glue head 100, that is, limits the moving speed of the workbench 700 driving the glue pump 500 to drive the glue head 100 to be below 500 mm / s, so as to ensure the stability of the glue head 100, thereby ensuring that the appearance of the glue shape in the installation groove 210 meets the sealing requirement of cooperation with the to-be-installed part.

[0133] Referring to Figure 7 and Figure 15 In an embodiment, the glue device further comprises a controller connected to the glue pump 500 to adjust the glue pressure of the glue pump 500. It can be understood that the glue pressure of the glue head 100 will also affect the stability of the glue head 100.

[0134] Therefore, the glue device of the present application further comprises a controller connected to the glue pump 500, and the controller can adjust the pressure of the glue pump 500, so as to adjust the glue output of the glue head 100, thereby ensuring the stability of the glue head 100, and ensuring that the appearance of the glue shape in the installation groove 210 meets the sealing requirement of cooperation with the to-be-installed part.

[0135] Referring to Figure 7 and Figure 15In an embodiment, the controller controls the glue pump 500 to have a glue dispensing pressure range of 60 Pa to 80 Pa. After the controller adjusts the glue dispensing pressure of the glue pump 500 to be within the range, the controller can adjust the glue dispensing amount of the glue dispensing head 100 to ensure the stability of the glue dispensing head 100, thereby ensuring that the appearance of the glue shape in the mounting groove 210 meets the sealing requirements for cooperation with the to-be-mounted part.

[0136] The technical features of the above embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not contradict each other, they should be considered within the scope of the present disclosure.

[0137] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that, for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A glue applicator head, characterized by, The application relates to a glue injection head (100) for injecting glue (300) into a mounting groove (210) of a to-be-glued part (200), wherein the mounting groove (210) has opposite first and second surfaces (211 and 212); the glue injection head (100) comprises: a connecting head (110); a glue injection pipe (120) arranged at one end of the connecting head (110), wherein the glue injection pipe (120) has a glue injection channel (121) connected to the connecting head (110), the glue injection pipe (120) has a first glue injection hole (122) and a second glue injection hole (123) penetrating the glue injection channel (121), the first glue injection hole (122) is arranged on the side of the glue injection pipe (120) and faces the first surface (211), and the second glue injection hole (123) is arranged at the end of the glue injection pipe (120) away from the connecting head (110) and faces the second surface (212); wherein the glue injection amount of the first glue injection hole (122) is smaller than that of the second glue injection hole (123).

2. The glue applicator head of claim 1, wherein, The glue injection amount of the first glue injection hole (122) is 1 / 5-1 / 2 of that of the second glue injection hole (123).

3. The glue applicator head of claim 1, wherein, Along the height direction of the glue injection pipe (120), the first glue injection hole (122) and the second glue injection hole (123) partially overlap.

4. The glue applicator head of claim 1, wherein, The area of the first glue injection hole (122) is 1 / 8-1 / 4 of the projection area of the second glue injection hole (123) in the height direction.

5. The glue applicator head of claim 1, wherein, The mounting groove (210) further has a glue overflow groove (213) recessed on the first surface (211). The bottom of the first glue injection hole (122) is higher than the lower edge of the glue overflow groove (213).

6. The glue applicator head of claim 1, wherein, The distance between the bottom wall of the first glue injection hole (122) and the bottom of the glue injection pipe (120) is 1 / 5-3 / 4 of the depth of the mounting groove (210).

7. The glue applicator head of claim 1, wherein, The bottom of the mounting groove (210) is a third surface (214) connecting the first surface (211) and the second surface (212). When the glue injection head (100) injects glue (300) into the mounting groove (210), the distance between the bottom of the glue injection pipe (120) and the third surface (214) is greater than 2 mm.

8. The glue applicator head of any one of claims 1 to 7, wherein, The shape of the first glue injection hole (122) is circular, elliptical, rectangular, square, triangular or rhombic. And / or, the inclination angle of the second glue injection hole (123) with respect to the height direction ranges from 30 DEG to 60 DEG.

9. A glue dispensing device characterized by, The glue injection head (100) is connected to the glue pump (500) through the pipeline (600) and is immersed in the glue barrel (400). The glue injection pipe (120) is arranged on the workbench (700) and moves with the workbench (700), the glue injection head (100) is connected to the glue pump (500) through the connecting head (110), the glue pump (500) injects the glue (300) in the glue barrel (400) into the glue injection head (100) through the pipeline (600), and the glue (300) is injected into the glue injection object (200).

10. The device of claim 9, wherein, The moving speed of the workbench (700) driving the glue injection head (100) is below 500 mm / s. And / or, the glue injection device further comprises a controller, and the controller controls the glue pump (500) to adjust the glue injection pressure of the glue pump (500). The glue injection pressure range of the controller controlling the glue pump (500) is 60 Pa to 80 Pa.

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