Manufacturing equipment and manufacturing process of glue injection corner code

Abstract

The application discloses a manufacturing device and a manufacturing process of a glue-injection corner code, and relates to the technical field of corner code processing. Two tanks contain component A and component B of a two-component resin respectively, and each tank is provided with a discharge pipe. A spray gun assembly comprises a distribution head, a spray head and static mixers. The distribution head has a cavity, a discharge port and two feed ports which are all connected to the cavity. The two feed ports are respectively connected to the two discharge pipes. The static mixers are connected in series to form a mixing unit. The upper end inlet and the lower end outlet of the mixing unit are respectively connected to the discharge port and the spray head. The spray port of the spray head is arranged downward. The height adjusting device comprises a servo driving mechanism and a lifting seat. The distribution head is connected to the lifting seat. The output end of the servo driving mechanism is connected to the lifting seat to adjust the height position of the lifting seat. The application can solve the problem that the two-component resin is prone to solidification when pouring downward, which leads to weak connection between the resin component and the corner code profile and easy separation. The strength of the glue-injection corner code is improved.

Description

Technical Field

[0001] This invention belongs to the field of corner code processing technology, and specifically relates to a manufacturing equipment and manufacturing process for glue-injected corner codes. Background Technology

[0002] In the field of door and window technology, corner brackets play a crucial role, enabling the corner assembly of two profiles. In existing technologies, such as... Figure 1 As shown, in order to enhance the strength of the corner bracket, a filler 500 is provided in the filling cavity 410 of the alloy corner bracket 400. The filler 500 is a resin component, thereby completing the manufacturing of the glued corner bracket. This can prevent the corner bracket from undergoing excessive deformation due to excessive force, which could cause cracking of the corner bracket structure.

[0003] However, the following problems were found during the manufacturing process of glued corner brackets: If two-component resin is poured and filled for each alloy corner bracket, the daily output of glued corner brackets is low and the overall production efficiency is low; if the two-component resin is poured from the top of the long corner bracket profile downwards, and multiple glued corner brackets are cut out after pouring, the two-component resin is prone to curing during the downward pouring process, resulting in weak and unstable connection between the resin component and the corner bracket profile. The resin component is prone to separating from the alloy corner bracket, resulting in the glued corner brackets failing to meet strength standards. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a manufacturing equipment and process for injection-molded corner brackets, which can solve the problem in the prior art that the two-component resin is prone to solidification during the downward pouring process, resulting in weak connection and easy separation between the resin component and the corner bracket profile, thereby improving the strength of the injection-molded corner brackets and increasing the daily output of injection-molded corner brackets.

[0005] A manufacturing apparatus for glue-filled corner brackets according to a first aspect embodiment of the present invention includes:

[0006] The tank has two components, A and B, respectively, for containing the two-component resin, and each tank is provided with a discharge pipe;

[0007] The spray gun assembly includes a distribution head, a nozzle, and a static mixer. The distribution head has a cavity and an outlet and two inlets that are both connected to the cavity. The two inlets are respectively connected to two outlet pipes. The static mixer has multiple units that are connected in series in the vertical direction to form a mixing unit. The upper inlet and lower outlet of the mixing unit are respectively connected to the outlet and the nozzle. The nozzle has its spray nozzle facing downward.

[0008] A height adjustment device includes a servo drive mechanism and a lifting base. The distribution head is connected to the lifting base, and the output end of the servo drive mechanism is connected to the lifting base to adjust the height position of the lifting base.

[0009] The manufacturing equipment for injection-molded corner brackets according to the first aspect of the present invention has at least the following beneficial effects: In the manufacturing process of the injection-molded corner brackets, a height adjustment device is used to precisely control the height position of the spray gun assembly. The lifting seat, under the action of a servo drive mechanism, drives the spray gun assembly downwards, allowing the nozzle to move down to the bottom of the injection cavity of the corner bracket profile, so as to inject the two-component resin into the injection cavity. Since components A and B of the two-component resin flow to the distribution head through their respective discharge pipes, and converge at the distribution head to enter the static mixer, components A and B can be mixed evenly and react fully to generate the two-component resin. As the two-component resin flows from the nozzle into the injection chamber, the height adjustment device controls the nozzle to gradually move upward as the amount of two-component resin in the injection chamber increases. This not only prevents the nozzle from contacting or being submerged with the two-component resin in the injection chamber, but also shortens the flow path of the two-component resin. This avoids the problem that the resin component may easily solidify during the downward pouring process, resulting in a weak connection between the resin component and the corner bracket profile, which could lead to the resin component and the alloy corner bracket easily separating and affecting the strength of the injection-molded corner bracket. After the two-component resin pouring is completed, the corner bracket profile is cut to produce multiple injection-molded corner brackets, which can increase the daily output of injection-molded corner brackets.

[0010] In some embodiments of the present invention, the servo drive mechanism includes a support, a timing belt component, and a rotary drive component. The timing belt component is disposed on the support, the output end of the rotary drive component is connected to the input end of the timing belt component, the movable end of the timing belt component is connected to the lifting seat, and the lifting seat is slidably connected to the support in the vertical direction.

[0011] In some embodiments of the present invention, the synchronous belt component includes a pulley and a synchronous belt. The pulley is rotatably connected to the support. There are two pulleys arranged at intervals in the vertical direction. The synchronous belt is wound between the two pulleys and is connected to the lifting seat. The rotary drive includes a servo motor and a reducer. The output shaft of the servo motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to one of the pulleys.

[0012] In some embodiments of the present invention, the servo drive mechanism further includes a swing arm, one end of which is hinged to the lifting seat so that the swing arm can rotate about a hinge axis extending in the vertical direction, and the other end of the swing arm is connected to the distribution head.

[0013] In some embodiments of the present invention, the static mixer is detachably connected to the dispensing head and the nozzle, respectively.

[0014] In some embodiments of the present invention, the manufacturing equipment for glue-filled corner codes further includes a control device and a flow meter, each of the discharge pipes is equipped with the flow meter, and the flow meter and the servo drive mechanism are respectively electrically connected to the control device.

[0015] In some embodiments of the present invention, the tank for containing component A is provided with a stirring assembly and a heating assembly.

[0016] In some embodiments of the present invention, the dispensing head is provided with a cleaning fluid inlet and a purge gas inlet, both of which are connected to the cavity.

[0017] In some embodiments of the present invention, each of the static mixers is fitted with at least one guide wheel assembly, the guide wheel assembly comprising four guide wheels arranged circumferentially around the static mixer.

[0018] The manufacturing process of the glued corner brackets according to a first aspect embodiment of the present invention is characterized by employing the manufacturing equipment described in the first aspect embodiment, and the manufacturing process includes the following steps:

[0019] Using the height adjustment device, the nozzle is controlled to move downwards and extend into the bottom of the glue injection cavity of the corner bracket profile;

[0020] The nozzle is controlled to pour the two-component resin into the injection cavity, and at the same time, the height adjustment device controls the nozzle to move upward according to the injection situation;

[0021] After the glue is applied, the corner bracket profile is cut to produce multiple glued corner brackets.

[0022] According to the manufacturing process of the glue-filled corner bracket according to the second aspect of the present invention, at least the following beneficial effects are achieved: In the manufacturing process of the glue-filled corner bracket, a height adjustment device is used to precisely control the height position of the spray gun assembly. The lifting seat, under the action of a servo drive mechanism, drives the spray gun assembly downward, allowing the nozzle to move down to the bottom of the glue-filling cavity of the corner bracket profile, so as to pour the two-component resin into the glue-filling cavity; since components A and B of the two-component resin flow to the distribution head through their respective discharge pipes, and merge together at the distribution head to enter the static mixer, components A and B can be mixed evenly and react fully to generate the two-component resin. As the two-component resin flows from the nozzle into the injection chamber, the height adjustment device controls the nozzle to gradually move upward as the amount of two-component resin in the injection chamber increases. This not only prevents the nozzle from contacting or being submerged with the two-component resin in the injection chamber, but also shortens the flow path of the two-component resin. This avoids the problem that the resin component may easily solidify during the downward pouring process, resulting in a weak connection between the resin component and the corner bracket profile, which could lead to the resin component and the alloy corner bracket easily separating and affecting the strength of the injection-molded corner bracket. After the two-component resin pouring is completed, the corner bracket profile is cut to produce multiple injection-molded corner brackets, which can increase the daily output of injection-molded corner brackets.

[0023] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0025] Figure 1 This is an exploded view of the structure of the glue-filled corner bracket in the existing technology;

[0026] Figure 2 This is a schematic diagram of the manufacturing equipment for glue-injection corner brackets provided in an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the connection between the spray gun assembly and the height adjustment device provided in an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the connection between the guide wheel assembly and the static mixer provided in an embodiment of the present invention;

[0029] Figure 5 This is a schematic flowchart of the manufacturing process of the glue-filled corner bracket provided in an embodiment of the present invention.

[0030] The following labels are used in the attached diagram: 100, tank body; 110, discharge pipe; 200, spray gun assembly; 210, distribution head; 220, static mixer; 230, nozzle; 300, height adjustment device; 310, rotary drive component; 320, pulley; 330, synchronous belt; 340, support; 350, lifting seat; 360, swing arm; 400, alloy angle bracket; 410, filling cavity; 500, filler; 610, first connecting rod; 620, guide wheel; 630, second connecting rod; 640, sleeve; 641, limiting part; 650, spring; 660, sliding ring. Detailed Implementation

[0031] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0032] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0033] In the description of this invention, the use of terms such as "a number" means one or more, with "more than" meaning two or more. Terms like "greater than," "less than," and "exceeding" are understood to exclude the stated number, while terms like "above," "below," and "within" are understood to include the stated number. The use of terms like "first," "second," and "third" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the number of indicated technical features, or the sequential relationship between indicated technical features.

[0034] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0035] Reference Figures 1 to 5 The following are several embodiments of the manufacturing equipment and manufacturing process for the glued corner brackets of the present invention.

[0036] like Figures 2 to 4 As shown, the manufacturing equipment for glue-filled corner brackets provided in Embodiment 1 of the first aspect of the present invention includes a tank 100, a spray gun assembly 200, and a height adjustment device 300.

[0037] Two tanks 100 are provided, one for containing component A of the two-component resin and the other for containing component B of the two-component resin. Each tank 100 is provided with a discharge pipe 110. It is understood that the two-component resin can be a two-component PU adhesive (i.e., a two-component polyurethane adhesive) or a two-component EP adhesive (i.e., a two-component epoxy resin adhesive), both of which include component A and component B, wherein component A is the main agent and component B is the curing agent.

[0038] Each tank 100 has a hollow interior forming a cavity capable of storing a certain amount of component A or component B. Furthermore, a material outlet is located at the bottom of each tank 100, and one end of a discharge pipe 110 is connected to this outlet. Therefore, components A and B can be conveyed out through the corresponding discharge pipe 110. The discharge pipe 110 is a flexible pipe, capable of bending. It is understood that component A or component B can be output from the tank 100 using pneumatic pressure or pumping methods. For example, the discharge pipe 110 may be equipped with a transfer pump.

[0039] Of course, both tanks 100 can also be equipped with material inlets to replenish the storage capacity of component A and component B. In addition, both tanks 100 are protected with inert gases such as nitrogen.

[0040] The spray gun assembly 200 includes a dispensing head 210, a nozzle 230, and a static mixer 220.

[0041] The dispensing head 210 has a hollow interior forming a cavity. It has one outlet and two inlets, all of which are connected to the cavity. One inlet is connected to one outlet pipe 110, and the other inlet is connected to the other outlet pipe 110. Therefore, components A and B flow into the cavity of the dispensing head 210 through their respective outlet pipes 110.

[0042] In this embodiment, the two feed ports are located at opposite ends of the dispensing head 210. The feed port is located below the discharge port, with the opening direction of the feed port facing upward and the opening direction of the discharge port facing downward. The discharge port is located between the two feed ports.

[0043] It is understandable that the flow rates of components A and B into the cavity can be controlled, allowing components A and B to mix and react in a certain ratio.

[0044] In this embodiment, the manufacturing equipment for the glue-filling corner brackets also includes a control device and a flow meter. Each discharge pipe 110 is equipped with a flow meter, which is electrically connected to the control device and transmits flow data to the control device.

[0045] Multiple static mixers 220 are provided, each extending vertically along its length, and each having an upper inlet and a lower outlet. These multiple static mixers 220 are arranged sequentially along the vertical direction and connected in series to form a mixing unit. The upper inlet and lower outlet of the mixing unit are connected to a discharge port and a nozzle 230, respectively. The nozzle 230 has its spray nozzle facing downwards.

[0046] It is understood that the static mixer 220 is prior art, and those skilled in the art should understand its specific structure and working principle, which will not be elaborated further here. The number of static mixers 220 can be set according to actual needs, and no specific limit is made here. Any two adjacent static mixers 220 can be detachably connected by a threaded structure.

[0047] Both the static mixer 220 and the nozzle 230 are cylindrical. The outer diameter of the static mixer 220 and the nozzle 230 is designed to be able to extend into the glue injection cavity of the corner bracket profile.

[0048] In any two adjacent static mixers 220, the upper inlet is connected to the lower outlet. The uppermost static mixer 220 has its upper inlet connected to the outlet of the distribution head 210, allowing components A and B located in the cavity to enter the mixing unit and flow in a spiral pattern within the mixing unit, ensuring that components A and B are mixed evenly and react fully to generate a two-component resin. The lower outlet of the lowermost static mixer 220 is connected to the nozzle 230, allowing the two-component resin to flow out from the nozzle 230. The number of nozzles 230 can be one or two, and is not specifically limited here.

[0049] In this embodiment, the static mixer 220 can be made of plastic material, which can reduce the weight and manufacturing cost of the static mixer 220. Furthermore, the housing of the static mixer 220 can be made of transparent plastic material to allow observation of the flow of the two-component resin within the static mixer 220, facilitating inspection of whether the interior of the static mixer 220 is blocked due to the curing of the two-component resin. The nozzle 230 can be made of a metal material such as iron.

[0050] In this embodiment, the static mixer 220 is detachably connected to both the dispensing head 210 and the nozzle 230. Specifically, the static mixer 220 and the dispensing head 210 can be connected via threads, and the static mixer 220 and the nozzle 230 can also be connected via threads. This configuration facilitates the disassembly of the spray gun assembly 200 for cleaning or quick replacement of the static mixer 220 and the nozzle 230, reducing maintenance difficulty and cost.

[0051] The height adjustment device 300 includes a servo drive mechanism and a lifting seat 350.

[0052] The distribution head 210 can be fixedly connected to the lifting base 350 by bolts. The output end of the servo drive mechanism is connected to the lifting base 350. After the servo drive mechanism is started, the output end of the servo drive mechanism can adjust the height position of the lifting base 350. The servo drive mechanism is electrically connected to the control device, and the control device can send control commands to the servo drive mechanism to control its start and stop. It can be understood that the servo drive mechanism can precisely control the height position of the lifting base 350 and the spray gun assembly 200.

[0053] The working process of the corner bracket manufacturing equipment provided in this embodiment is as follows: First, prepare a long corner bracket profile. The corner bracket profile can be manufactured by extrusion processes, etc. Generally, the length of the corner bracket profile can reach 3 meters. Place the corner bracket profile vertically on the work platform. At this time, the glue injection cavity of the corner bracket profile runs through the upper and lower end faces of the corner bracket profile.

[0054] Then, using the height adjustment device 300, the spray gun assembly 200 is moved upwards to a position above the corner bracket profile, with the nozzle 230 and all the static mixers 220 aligned with the glue injection cavity of the corner bracket profile. Next, the height adjustment device 300 is activated, driving the spray gun assembly 200 downwards so that the nozzle 230 and all the static mixers 220 can extend into the glue injection cavity of the corner bracket profile, at which point neither the nozzle 230 nor the static mixers 220 are in contact with the inner wall surface of the glue injection cavity.

[0055] When the nozzle 230 moves downward to the set position under the drive of the height adjustment device 300, the height adjustment device 300 stops operating, so that the height distance between the nozzle 230's spray port and the lower end face of the corner bracket profile reaches the set value, which can be from 1mm to 50mm. At this time, the large dispensing head 210 can be positioned above the corner bracket profile without needing to extend into the glue injection cavity.

[0056] Subsequently, components A and B from the two tanks 100 are conveyed through the corresponding discharge pipes 110 to the cavity of the distribution head 210. Components A and B merge and flow together into the mixing unit. After spiral flow and thorough mixing, components A and B react fully and at least partially generate a two-component resin, which finally flows out from the nozzle of the spray head 230. The flowing two-component resin enters the dispensing cavity and begins to fill the cavity from bottom to top.

[0057] The two-component resin will cure and bond with the inner wall of the injection cavity. The two-component resin forms a resin component with a fixed shape in the injection cavity of the corner bracket profile. The cross-sectional shape of the resin component is consistent with the cross-sectional shape of the injection cavity.

[0058] Next, the height adjustment device 300 is activated, causing the spray gun assembly 200 to slowly move upwards. The dispensing head 210 may be equipped with a distance sensor, and the distance sensor and the height adjustment device 300 are electrically connected to the control device. The control device may be a PLC controller, a 51 microcontroller, or a host computer; no specific limitation is made here.

[0059] Since the height distance between the dispensing head 210 and the nozzle 230 is known, the distance sensor can detect the height position of the nozzle 230 in real time and determine whether the nozzle 230 has reached the set position. Furthermore, when the two-component resin is poured, the amount of two-component resin in the injection chamber continuously increases, causing the upper surface of the resin component to rise continuously. The distance sensor then measures the height difference between the upper surface of the resin component and the nozzle opening of the nozzle 230. As the height difference decreases, the resin component will collide with the nozzle 230.

[0060] Therefore, the distance sensor collects data in real time and transmits the data to the control device. The control device compares the real-time data with the set data and controls the height adjustment device 300 to move the nozzle 230 upwards by a certain distance, ensuring the height difference between the nozzle 230's spray port and the upper surface of the resin component is within a safe set range. For example, the height difference can be set between 5mm and 50mm. When the height difference exceeds the set range, the height adjustment device 300 stops.

[0061] During the continuous glue injection process, the control device performs logical judgments based on the data collected by the distance sensor and controls the operation of the height adjustment device 300, so that the height of the nozzle 230 rises as the upper surface of the resin component rises, until the resin component completely fills the entire glue injection cavity of the corner bracket profile. At this time, the nozzle 230 has moved up to outside the glue injection cavity.

[0062] After the resin component is firmly bonded to the corner bracket profile, the corner bracket profile can be removed and cut using a cutting machine to produce multiple glue-filled corner brackets. This improves the manufacturing efficiency of glue-filled corner brackets and increases their daily output.

[0063] Understandably, in existing technologies, components A and B are uniformly mixed and fully reacted to form a two-component resin 100° after leaving the tank. This resin then travels through a long delivery pipeline to reach the injection cavity of the corner bracket profile. During this process, partial curing of the resin can cause blockages in the delivery pipeline, leading to maintenance difficulties and impacting overall manufacturing efficiency. Furthermore, the resin is poured from above the corner bracket profile and cures rapidly during its descent. Consequently, the bond between the resin and the profile weakens after it reaches its destination, preventing the resin from completely filling the injection cavity and creating gaps between the resin component and the profile. This results in a decrease in the strength of the injected corner bracket.

[0064] Compared to the prior art, in the manufacturing equipment for injection corner brackets provided in this embodiment, the height adjustment device 300 is used to precisely control the height position of the spray gun assembly 200 during the manufacturing process of the injection corner brackets. The lifting seat 350 drives the spray gun assembly 200 to move downward under the action of the servo drive mechanism, so that the nozzle 230 can move down to the bottom of the injection cavity of the corner bracket profile, so as to pour the two-component resin into the injection cavity. Since components A and B of the two-component resin flow to the distribution head 210 through their respective discharge pipes 110, they merge at the distribution head 210 and enter the static mixer 220 together, allowing components A and B to be mixed evenly and react fully to generate the two-component resin. The two-component resin flows from the nozzle 230 to the dispensing chamber. At the same time, as the amount of two-component resin in the dispensing chamber increases, the height adjustment device 300 controls the nozzle 230 to gradually move upward. This not only avoids the nozzle 230 from contacting or being submerged with the two-component resin in the dispensing chamber, but also shortens the flow path of the two-component resin, allowing components A and B to be mixed by the mixing unit as they flow downward along the dispensing chamber, eliminating the need for pre-mixing and reaction outside the dispensing chamber.

[0065] Therefore, the manufacturing equipment for the glued corner brackets in this embodiment can avoid the problem that the two-component resin is prone to rapid curing during the pouring process, resulting in a weak connection between the resin component and the corner bracket profile, which leads to the resin component and the alloy corner bracket easily separating and affecting the strength of the glued corner bracket.

[0066] In some embodiments, such as Figure 2 and Figure 3 As shown, the servo drive mechanism includes a support 340, a synchronous belt component, and a rotary drive component 310.

[0067] The timing belt component is mounted on the support 340. The output end of the rotary drive component 310 is connected to the input end of the timing belt component. The movable end of the timing belt component is connected to the lifting seat 350. The lifting seat 350 can be mounted on the support 340 via a slide rail slider pair, so that the lifting seat 350 can slide relative to the support 340 in the vertical direction.

[0068] Specifically, the synchronous belt component includes pulleys 320 and a synchronous belt 330. The pulleys 320 are mounted on the support 340 via a rotating shaft, enabling rotatable connection between the pulleys 320 and the support 340. There are two pulleys 320, arranged at a certain interval along the vertical direction. The synchronous belt 330 is wound between the two pulleys 320, and a meshing connection is established between the gears and the synchronous belt 330. One side of the synchronous belt 330 can be fixedly connected to the lifting seat 350 via a belt clamp assembly. Alternatively, a tensioning pulley can be provided on the support 340 to tension the synchronous belt 330.

[0069] The rotary drive component 310 includes a servo motor and a reducer. The output shaft of the servo motor and the input shaft of the reducer are connected via a key, and the output shaft of the reducer is connected to one of the pulleys 320. In this embodiment, both the servo motor and the reducer are located at the lower part of the support 340, and the reducer is connected to the pulley 320 located on the lower side for transmission. The servo motor is a reversible motor, and its output shaft can rotate clockwise or counterclockwise.

[0070] When the output shaft of the servo motor rotates clockwise, the pulley 320 rotates and drives the synchronous belt 330 to run, thereby causing the lifting seat 350 to lift the spray gun assembly 200. When the output shaft of the servo motor rotates counterclockwise, the pulley 320 rotates in the opposite direction and drives the synchronous belt 330 to run in the opposite direction, thereby causing the lifting seat 350 to lift the spray gun assembly 200 to move downward.

[0071] The servo drive mechanism adopts the above structure, which can precisely control the height position of the nozzle 230.

[0072] Understandably, during the manufacturing process of the glue-injection corner brackets, the manufacturing equipment can be mounted on a support frame, with the work platform located below the support frame. The corner bracket profiles on the work platform can be fixed using brackets or clamps, ensuring they are perpendicular to the work platform and in a vertical position. Since the corner bracket profiles can be up to 3 meters long, the servo drive mechanism can propel the nozzle 230 to a distance greater than 3 meters.

[0073] Of course, it cannot be ruled out that the servo drive mechanism may use a high-precision linear module.

[0074] Since the flow meter and servo drive mechanism of the discharge pipe 110 are electrically connected to the control device, the control device receives the flow data collected by the flow meter and controls the servo drive mechanism to stop operating based on the flow data. The control device is configured to stop the servo drive mechanism when the flow data collected by the flow meter exceeds the input set range. Furthermore, the manufacturing equipment can be equipped with an alarm, such as an audible and visual alarm, and the control device is electrically connected to the alarm.

[0075] Understandably, during normal dispensing operations, if the flow meter data becomes abnormal and falls outside the set range, it is highly likely that the spray gun assembly will become clogged. In this case, the control device will immediately stop the servo drive mechanism and halt the liquid delivery from tank 100. This can be achieved by controlling the control valve on the discharge pipe 110 and shutting down the pump. Furthermore, the control device will activate the alarm to promptly notify personnel for inspection and maintenance.

[0076] In some embodiments, such as Figure 3 As shown, the servo drive mechanism also includes a swing arm 360.

[0077] One end of the swing arm 360 can be hinged to the lifting seat 350 via a hinge shaft, so that the swing arm 360 can rotate around the hinge axis extending in the vertical direction, and the other end of the swing arm 360 is connected to the distribution head 210.

[0078] With this setup, the operator can apply a certain force to the swing arm 360 to cause the spray gun assembly 200 to swing around the hinge between the swing arm 360 and the lifting seat 350, thereby adjusting the angle position of the spray gun assembly 200 on the horizontal plane.

[0079] Understandably, since the manufacturing equipment for the glue injection corner brackets is located on a support frame such as a steel structure platform, and the work platform is located below the support frame, the workers standing on the support frame can rotate the swing arm 360 degrees to move the spray gun assembly 200 above the corner bracket profile and align it with the glue injection cavity. They can also rotate the swing arm 360 degrees to bring the spray gun assembly 200 closer to the workers for inspection and maintenance.

[0080] Alternatively, an electric drive unit can be installed and connected to the swing arm 360. The electric drive unit may include a motor and a reducer; the motor is a servo motor, and it drives the swing arm 360 to automatically rotate a certain angle via a synchronous belt structure.

[0081] In some embodiments, the tank 100 for containing component A is provided with a stirring assembly and a heating assembly.

[0082] The stirring assembly includes a motor, a stirring shaft, and stirring blades. The stirring shaft extends vertically along its length. Multiple stirring blades are fixedly mounted on the outer circumference of the stirring shaft, arranged in a circular pattern. The motor drives the stirring shaft to rotate, causing the stirring blades to stir component A within the tank 100, maintaining a certain degree of fluidity for component A. The tank 100 is equipped with a lid to ensure a good seal for component A. The motor is located outside the cavity of the tank 100 and can be mounted on the lid. The stirring shaft passes through the lid.

[0083] The heating component can be a PTC heater, which can heat component A in tank 100 to give component A a certain fluidity so that it can flow out through discharge pipe 110.

[0084] In some embodiments, the dispensing head 210 is provided with a cleaning fluid inlet and a purge air inlet. The cleaning fluid inlet is connected to the cavity and is connected to a cleaning fluid pipeline, which is equipped with a control valve. The purge air inlet is connected to the cavity and is connected to a purge air pipeline, which is equipped with a control valve. Furthermore, the discharge pipe 110 is also equipped with a control valve.

[0085] After the two-component resin casting is completed, the dispensing head 210 or the entire spray gun assembly 200 can be cleaned with a cleaning fluid, and then purged with a purging gas such as nitrogen to remove any remaining liquid in the dispensing head 210 or the spray gun assembly 200.

[0086] In some embodiments, each static mixer 220 is equipped with at least one guide wheel assembly. The guide wheel assembly includes four guide wheels 620 arranged in a circular pattern around the static mixer 220.

[0087] Understandably, each static mixer 220 can be equipped with one guide wheel assembly, or two or more guide wheel assemblies. When the static mixer 220 extends into the glue injection cavity of the corner bracket profile, the four guide wheels 620 will respectively contact the four inner wall surfaces of the glue injection cavity, ensuring that the nozzle 230 is located in the center of the glue injection cavity. This avoids the problem of insufficient two-component resin at the furthest point from the nozzle 230 in the glue injection cavity due to the nozzle 230 being offset from the center of the glue injection cavity, resulting in an uneven upper surface of the resin component. At the same time, there is no need to manually adjust the position of the static mixer 220 and the nozzle 230 in the glue injection cavity, reducing the difficulty of operation. Moreover, the guide wheel 620 can play a guiding role. The friction between the guide wheel 620 and the corner bracket profile is weak, which allows the long mixing unit to rise and fall stably. This avoids the situation where the long mixing unit and the nozzle 230 shake during the rising and falling process and collide with the inner wall of the glue injection cavity, which would affect the glue injection work and the structural stability of the spray gun assembly 200.

[0088] In a specific example, such as Figure 4 As shown, the guide wheel assembly includes a sleeve 640, a spring 650, a sliding ring 660, a first connecting rod 610, a second connecting rod 630, and a guide wheel 620.

[0089] The sleeve 640 is fitted onto the static mixer 220. Specifically, the sleeve 640 can be fixed to the outer circumference of the static mixer 220 by adhesive bonding, threaded structure, or fastening screws. The lower end of the first connecting rod 610 is mounted on the lower part of the sleeve 640 via a hinge shaft. There are four first connecting rods 610, which are evenly arranged around the central axis of the sleeve 640. The guide wheel 620 is mounted on the upper end of the first connecting rod 610 via a hinge shaft. The central axis of the guide wheel 620 extends horizontally.

[0090] A sliding ring 660 is fitted onto a sleeve 640 and slides vertically with the sleeve 640. The lower end of the second connecting rod 630 is hinged to the sliding ring 660, and the upper end of the second connecting rod 630 is hinged to the first connecting rod 610. The hinge point between the second connecting rod 630 and the first connecting rod 610 is located below the guide wheel 620 and above the hinge point between the first connecting rod 610 and the sleeve 640. There can be four second connecting rods 630, each corresponding to one of the four first connecting rods 610. Alternatively, each first connecting rod 610 can be equipped with two second connecting rods 630.

[0091] Spring 650 is sleeved on sleeve 640, and is located below sliding ring 660. The lower end of spring 650 is connected to sleeve 640, and the upper end is connected to sliding ring 660. Under the elastic force of spring 650, sliding ring 660 will automatically slide upward relative to sleeve 640. It can be understood that when the first connecting rod 610 or guide wheel 620 is subjected to an external force, the first connecting rod 610 will move closer to sleeve 640, causing sliding ring 660 to move downward and overcome the elastic force of spring 650.

[0092] In this embodiment, the first connecting rod 610 forms a first acute angle with the central axis of the sleeve 640, and the second connecting rod 630 forms a second acute angle with the central axis of the sleeve 640, wherein the first acute angle is smaller than the second acute angle. A hinge portion is provided at the lower end of the sleeve 640 for hinged connection with the first connecting rod 610, and the lower end of the spring 650 abuts against the hinge portion. A limiting portion 641 is provided at the upper end of the sleeve 640 to limit the sliding ring 660 and prevent separation between the sliding ring 660 and the sleeve 640.

[0093] The limiting part 641 can be threaded onto the sleeve 640. After disassembling the limiting part 641, the first connecting rod 610, and the second connecting rod 630, the sliding ring 660 and the spring 650 can be removed. This design simplifies the assembly of the guide wheel assembly. The hinge axis of the guide wheel assembly can be a bolt. The guide wheel assembly can be made of plastic.

[0094] With the above configuration, when at least one of the four first links 610 is subjected to an external force, all the first links 610 will move closer together, reducing the horizontal distance between the guide wheel 620 and the sleeve 640.

[0095] Because the work platform is located below the support frame, workers standing on the support frame can observe the glue injection cavity of the corner bracket profile. During the manufacturing of the glue injection corner bracket, the height adjustment device 300 drives the spray gun assembly 200 upwards to the top of the corner bracket profile, positioning it vertically opposite the glue injection cavity. Then, the height adjustment device 300 drives the spray gun assembly 200 downwards to extend into the glue injection cavity of the corner bracket profile. When initially extending into the glue injection cavity, the swing arm 360 can be rotated manually or electrically to adjust the position of the static mixer 220 and the nozzle 230 relative to the glue injection cavity, ensuring that the four guide wheels 620 respectively contact the four inner wall surfaces of the glue injection cavity.

[0096] The guide wheel assembly functions effectively in situations involving dispensing cavities of varying sizes. When the static mixer 220 extends into the dispensing cavity, the first connecting rod 610 is compressed by the angle bracket profile and moves towards the central axis of the static mixer 220. Due to the second connecting rod 630 and the sliding ring 660, all the first connecting rods 610 move synchronously, causing the four guide wheels 620 to press against the four inner walls of the dispensing cavity. All the guide wheels 620 are located on the same circle, with the center of the circle located at the central axis of the static mixer 220. Therefore, the guide wheel assembly provides excellent guidance as the nozzle 230 continues to descend, ensuring a smooth descent of the nozzle 230 and all the static mixers 220. Furthermore, as the nozzle 230 and all the static mixers 220 rise, the guide wheels 620 remain pressed against the inner wall of the dispensing cavity, continuing to guide the flow of the two-component resin from the nozzle 230, thus improving the dispensing effect.

[0097] like Figures 1 to 5 As shown, the manufacturing process of the glued corner bracket according to the second aspect embodiment of the present invention uses the manufacturing equipment of the first aspect embodiment, and the manufacturing process includes the following steps:

[0098] Step S1: Using the height adjustment device 300, control the nozzle 230 to move downwards and extend into the bottom of the glue injection cavity of the corner bracket profile.

[0099] Understandably, the lifting platform 350, driven by a servo drive mechanism, moves the spray gun assembly 200 downwards, allowing the nozzle 230 to descend to the bottom of the injection cavity of the corner bracket profile. This enables the two-component resin to be poured from bottom to top along the injection cavity. This design shortens the distance between the nozzle 230's spray port and the connection point between the sprayed two-component resin and the corner bracket profile, preventing the two-component resin from curing too quickly and causing poor adhesion between it and the corner bracket profile.

[0100] Step S2: Control the nozzle 230 to pour the two-component resin into the injection cavity. At the same time, control the nozzle 230 to move upward according to the injection situation through the height adjustment device 300.

[0101] Component A and Component B flow into the distribution head 210 through their respective discharge pipes 110 to merge and enter the mixing unit together. Component A and Component B are allowed to flow spirally within the mixing unit, so that they can be mixed evenly and react fully to generate a two-component resin. The two-component resin flows from the nozzle 230 to the dispensing chamber.

[0102] As the glue injection process progresses, the amount of two-component resin in the injection cavity increases, and the upper surface of the resin component rises. Therefore, by controlling the nozzle 230 to gradually move upward through the height adjustment device 300, it is possible not only to prevent the nozzle 230 from contacting, colliding with, or being submerged in the two-component resin in the injection cavity, thus affecting subsequent glue injection work, but also to shorten the flow path of the two-component resin after its formation. This avoids the problem that the two-component resin may easily solidify due to an excessively long flow path during downward pouring, resulting in poor connection between the resin component and the corner bracket profile, causing the resin component and alloy corner bracket to easily separate, thereby affecting the strength of the glued corner bracket.

[0103] Step S3: After the glue injection is completed, the corner bracket profile is cut to produce multiple glue-injected corner brackets.

[0104] After the two-component resin pouring is completed, workers can remove the glue-treated corner bracket profiles and cut them using a cutting machine to produce multiple glue-treated corner brackets of uniform specifications. This design increases the daily output of glue-treated corner brackets.

[0105] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A manufacturing equipment for glue-filled corner brackets, characterized in that, include: The tank has two components, A and B, respectively, for containing the two-component resin, and each tank is provided with a discharge pipe; The spray gun assembly includes a distribution head, a nozzle, and a static mixer. The distribution head has a cavity and an outlet and two inlets that are both connected to the cavity. The two inlets are respectively connected to two outlet pipes. The static mixer has multiple units that are connected in series in the vertical direction to form a mixing unit. The upper inlet and lower outlet of the mixing unit are respectively connected to the outlet and the nozzle. The nozzle has its spray nozzle facing downward. A height adjustment device includes a servo drive mechanism and a lifting base. The distribution head is connected to the lifting base, and the output end of the servo drive mechanism is connected to the lifting base to adjust the height position of the lifting base. Each of the static mixers is fitted with at least one guide wheel assembly, the guide wheel assembly comprising four guide wheels arranged circumferentially around the static mixer; The guide wheel assembly further includes a sleeve, a spring, a sliding ring, a first connecting rod, and a second connecting rod. The sleeve is fitted onto the static mixer and fixed to its outer circumference. The lower end of the first connecting rod is mounted on the lower part of the sleeve via a hinge shaft. Four first connecting rods are evenly arranged around the central axis of the sleeve. The guide wheel is mounted on the upper end of the first connecting rod via a hinge shaft. The central axis of the guide wheel extends horizontally. The sliding ring is fitted onto the sleeve and slides vertically with it. The second connecting rod is... Four rods, each corresponding to one of the four first connecting rods. The lower end of the second connecting rod is hinged to the sliding ring, and the upper end of the second connecting rod is hinged to the first connecting rod. The hinge point between the second connecting rod and the first connecting rod is located below the guide wheel and above the hinge point between the first connecting rod and the sleeve. The spring is sleeved on the sleeve and located below the sliding ring. The lower end of the spring is connected to the sleeve, and the upper end of the spring is connected to the sliding ring. Under the elastic force of the spring, the sliding ring will automatically slide upward relative to the sleeve.

2. The manufacturing equipment for glue-filled corner brackets according to claim 1, characterized in that, The servo drive mechanism includes a support, a synchronous belt component, and a rotary drive component. The synchronous belt component is disposed on the support. The output end of the rotary drive component is connected to the input end of the synchronous belt component. The movable end of the synchronous belt component is connected to the lifting seat. The lifting seat and the support are slidably connected in the vertical direction.

3. The manufacturing equipment for glue-filled corner brackets according to claim 2, characterized in that, The synchronous belt component includes pulleys and a synchronous belt. The pulleys are rotatably connected to the support. There are two pulleys arranged at intervals in the vertical direction. The synchronous belt is wound between the two pulleys and is connected to the lifting seat. The rotary drive component includes a servo motor and a reducer. The output shaft of the servo motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to one of the pulleys.

4. The manufacturing equipment for glue-filled corner brackets according to claim 2, characterized in that, The servo drive mechanism also includes a swing arm, one end of which is hinged to the lifting seat so that the swing arm can rotate about a hinge axis extending in the vertical direction, and the other end of the swing arm is connected to the distribution head.

5. The manufacturing equipment for glue-filled corner brackets according to claim 1, characterized in that, The static mixer is detachably connected to the dispensing head and the nozzle, respectively.

6. The manufacturing equipment for glue-filled corner brackets according to claim 1, characterized in that, It also includes a control device and a flow meter. Each of the discharge pipes is equipped with the flow meter, and the flow meter and the servo drive mechanism are electrically connected to the control device.

7. The manufacturing equipment for glue-filled corner brackets according to claim 1, characterized in that, The tank for containing component A is equipped with a stirring assembly and a heating assembly.

8. The manufacturing equipment for glue-filled corner brackets according to claim 1, characterized in that, The dispensing head is provided with a cleaning fluid inlet and a purge gas inlet, both of which are connected to the cavity.

9. A manufacturing process for glued corner brackets, characterized in that, Using the manufacturing equipment as described in any one of claims 1 to 8, the manufacturing process includes the following steps: Using the height adjustment device, the nozzle is controlled to move downwards and extend into the bottom of the glue injection cavity of the corner bracket profile; The nozzle is controlled to pour the two-component resin into the injection cavity, and at the same time, the height adjustment device controls the nozzle to move upward according to the injection situation; After the glue is applied, the corner bracket profile is cut to produce multiple glued corner brackets.

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