Automatic glue encapsulation device for fiber ribs

Abstract

The present invention discloses a rubber coating device for automatic rubber coating of fiber umbrella ribs, and relates to the technical field of umbrella rib production. The device comprises a rubber coating frame, a lifting mechanism, a rubber injection assembly and a controller. A support seat is fixed at the bottom of the lifting mechanism. A U-shaped lower mold is arranged on the front of the rubber coating frame, and a U-shaped upper mold is fixed at the bottom of the support seat. The present invention is provided with a lower mold with a groove, an upper mold with a protrusion, an inclined block and a slope. The contact surface between the connection part and the rubber coating block after molding is small, and the stress is concentrated. The connection part can rotate at a large angle around the connection part with the plastic block, so as to facilitate the separation of the connection part from the plastic block, avoid the phenomenon of lack of glue on the rubber coating surface of the separated fiber umbrella rib, and improve the product quality.

Description

Technical Field

[0001] The invention relates to the technical field of umbrella rib production, in particular to a glue encapsulating device for automatically encapsulating fiber umbrella ribs. Background Art

[0002] Fiberglass rib encapsulation injection molding refers to placing a certain number of fiberglass ribs into the corresponding injection molding machine mold, and encapsulating plastic at both ends of the ribs or certain specific positions. Existing rib processing is generally done by encapsulation injection molding.

[0003] The Chinese invention patent, application publication number CN115026995A discloses a rubber coating device and a working process for automatic rubber coating of fiber umbrella ribs. The fiber arrangement mechanism and the fiber delivery mechanism cooperate with each other to neatly arrange the umbrella ribs on the fiber placement frame and deliver them to the lower mold of the mold for injection molding to form an umbrella frame. The injection-molded umbrella frame is then transferred to the dividing mechanism through the transfer mechanism. The dividing mechanism is used to separate the plastic frame on the umbrella frame from the umbrella ribs, and the injection-molded and rubber-coated umbrella ribs are used independently. The structure is compact and no manual operation is required throughout the process. On the one hand, labor costs are saved, and on the other hand, the efficiency of the injection molding and rubber coating of the umbrella ribs is accelerated.

[0004] A Chinese invention patent, application publication number CN111645260A, discloses a glass fiber umbrella rib encapsulation equipment, including an automatic loader, a vertical injection molding machine and an automatic unloader arranged side by side. The equipment can replace manual loading and unloading operations of the injection molding machine. Workers only need to replenish the glass fiber umbrella ribs in the silo when they are short of material and transport the framed finished products away.

[0005] For another example, the Chinese utility model patent, authorization announcement number CN218906092U discloses a fiber arrangement device for umbrella rib rubber coating. During operation, the umbrella ribs on the storage rack are adsorbed by the negative pressure of the main board, so that the umbrella ribs are neatly arranged in the fiber absorption grooves of the main board. Finally, the main board is moved to the injection molding station, and the suction of the fiber absorption groove is relaxed. Then, the umbrella ribs can be neatly arranged on the injection molding station. There is no need for manual fiber arrangement, which improves processing efficiency.

[0006] The above-mentioned prior art and existing encapsulation device still have certain defects in practical applications, such as:

[0007] The fiber ribs are injection molded by the rubber coating equipment to form an umbrella frame integrated with the plastic frame. The plastic frame and the fiber ribs need to be separated by the material separation mechanism. Since the fiber ribs and the plastic frame are integrally formed, when the plastic frame is pressed down to separate the fiber ribs, the plastic coating surface of the separated fiber ribs may be lacking in glue (the lacking glue part is brought out by the plastic frame) due to the large connection surface between the plastic frame and the fiber ribs. In addition, excessive pressing force may cause the separated fiber ribs to bend, thus affecting product quality;

[0008] In addition, adhesion may occur between the formed umbrella frame and the forming groove. When the material distribution mechanism drives the umbrella frame to move upward, this adhesion may cause certain obstacles to the smooth movement of the umbrella frame, thereby causing the umbrella ribs to bend and break, thereby reducing product quality. Summary of the invention

[0009] The object of the present invention is to provide a device for automatically encapsulating fiber umbrella ribs with adhesive, so as to solve the problems raised in the above-mentioned background technology.

[0010] To achieve the above object, the present invention provides the following technical solutions: a glue coating device for automatic glue coating of fiber umbrella ribs, comprising a glue coating frame, a lifting mechanism, a glue injection assembly and a controller, a support seat is fixed at the bottom of the lifting mechanism, a U-shaped lower mold is arranged on the front of the glue coating frame, and a U-shaped upper mold is fixed at the bottom of the support seat;

[0011] The lower mold is provided with a lower main glue groove and two lower sub-glue grooves, and the upper mold is provided with an upper main glue groove and two upper sub-glue grooves. After the molds are closed, a U-shaped glue outer flow channel is formed between the lower main glue groove and the upper main glue groove, and between the lower sub-glue groove and the upper sub-glue groove on each side;

[0012] A groove is provided on the lower mold between the two lower glue separation grooves, a lower rib placement groove is provided on the groove, lower glue encapsulation grooves are provided on both sides of the lower rib placement grooves, and a lower glue flow groove is provided on the lower mold. The lower glue separation groove and the lower glue encapsulation groove on one side are connected through the lower glue flow groove, and a slope is formed between the lower glue encapsulation groove and the lower glue flow groove.

[0013] A convex block is arranged on the upper mold between the two upper glue separation grooves, the convex block is matched with the groove, an upper rib placement groove, an upper glue coating groove and an upper glue flow groove are opened on the convex block, and an inclined block is fixed on the side of the upper glue coating groove facing the upper glue flow groove;

[0014] After the mold is closed, a placement channel with a circular cross section is formed between the lower rib placement groove and the upper rib placement groove, the placement channel is adapted to the fiber rib, a horizontal glue encapsulation channel is formed between the lower glue encapsulation groove and the upper glue encapsulation groove, and a horizontal glue inner side flow channel is formed between the lower glue flow groove and the upper glue flow groove, wherein a connecting channel is formed between the slope and the side of the inclined block, and the connecting channel gradually converges toward the side of the placement channel;

[0015] The fiber umbrella ribs are placed in the lower umbrella rib placement grooves. After the molds are closed, the molten glue is injected into the outer flow channel of the glue through the glue injection assembly. The molten glue enters the glue encapsulation channel through the inner flow channel and the connecting channel of the glue. After cooling, an umbrella frame is formed.

[0016] A lifting assembly is provided at the bottom of the lower mold, and the umbrella frame is pushed upward by the lifting assembly, so that the transfer mechanism can transfer the umbrella frame conveniently.

[0017] Furthermore, the ejector assembly includes a plurality of horizontally arranged rotating shafts, and a driving member is arranged on the outer side of the rotating shaft, and the rotating shaft is driven by the driving member to rotate in the same direction;

[0018] A cam is fixed on the shaft body of the rotating shaft, a movable plate is arranged on the top of the cam, and a plurality of first guide telescopic rods and a plurality of first springs are fixed between the movable plate and the lower die;

[0019] A plurality of longitudinally distributed ejector rods are fixed to the top of the movable plate, and the ejector rods are movably connected to the lower die. When the cam is at the lowest point in its rotation cycle, the top end surface of the ejector rod and the bottom end surface of the lower rubber-coated groove are located in the same horizontal plane.

[0020] Furthermore, the four corners of the lower die are provided with guide grooves, and the four corners of the bottom end of the upper die are fixed with guide rods, and the guide rods are adapted to the guide grooves;

[0021] A distance measuring sensor is fixed at the bottom end of one of the guide rods, and a receiver is fixed in the guide groove corresponding to the guide rod. The distance between the lower mold and the upper mold is measured by the distance measuring sensor, and the receiver is electrically connected to the controller.

[0022] Furthermore, a longitudinal support block is arranged in the middle of the lower mold, and the lower rib placement grooves are distributed on the top of the longitudinal support block.

[0023] Furthermore, the top surface of the longitudinal support block is higher than the top surface of the groove, the top of the longitudinal support block is provided with a vertical groove connected to the lower rib placement groove, and the top of the vertical groove is provided with two slopes extending outward.

[0024] Furthermore, a straightening component is provided at the bottom end of the upper mold;

[0025] The straightening assembly includes two fixed blocks, a movable block is arranged at the bottom of the fixed block, a plurality of second springs and a plurality of second guide telescopic rods are fixed between the fixed block and the movable block, and a plurality of first top arc-shaped support plates equal in number to the lower rib placement grooves are fixed at the bottom end of the movable block;

[0026] When the mold is closed, the bottom of the first top arc-shaped support plate presses the top of the fiber rib located on the longitudinal support block.

[0027] Furthermore, a plurality of side arc-shaped support plates are fixed on both sides of the longitudinal support block, and the arc-shaped grooves of the side arc-shaped support plates are adapted to the fiber ribs;

[0028] The straightening assembly also includes a movable plate movably plugged with the movable block, a plurality of vertical support blocks are arranged at the bottom of the movable plate, a horizontal plate is fixed at the bottom end of the vertical support block, and a plurality of second top arc-shaped support plates equal in number to the lower rib placement grooves are fixed at the bottom end of the horizontal plate;

[0029] A plurality of limit columns are fixed on the top of the vertical support block, and the limit columns are movably plugged with the movable plate, and a clearance gap is formed between the top surface of the vertical support block and the movable plate;

[0030] A plurality of double-headed electric telescopic rods are arranged between the two movable blocks, and two telescopic ends of the double-headed electric telescopic rods are respectively fixed to the side surfaces of the movable plate.

[0031] Furthermore, the first top arc-shaped support plate is made of elastic material, and a distance of 1-5 mm is formed between the first top arc-shaped support plate and the second top arc-shaped support plate.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] The rubber coating device for automatic rubber coating of the fiber umbrella rib is provided with a lower mold with a groove, an upper mold with a protrusion, an inclined block and a slope. The contact surface between the connection part and the rubber coating block after molding is small, the stress is concentrated, and the connection part can be rotated at a large angle around the connection part between the connection part and the plastic block, so that the connection part and the plastic block can be separated easily, and the phenomenon of lack of glue on the rubber coating surface of the fiber umbrella rib after separation can be avoided, thereby improving product quality.

[0034] In addition, since the connecting portion is arranged obliquely downward, when the frames on both sides of the plastic frame are pressed downward, it can be known through the decomposition of force that the connecting portion will be subjected to vertical force and outward pulling force. Compared with the force on the fiber ribs, the two sides of the fiber ribs will be subjected to axial forces in two opposite directions along the axial direction of the fiber ribs, thereby preventing the fiber ribs from bending due to torsion when the fiber ribs are separated, thereby further improving the product quality.

[0035] At the same time, a lifting material component is provided, through which the formed umbrella frame is pushed upward to prevent adhesion between the formed umbrella frame and the forming groove, making it convenient for the transfer mechanism to transfer the umbrella frame, and further improving product quality.

[0036] In addition, a straightening component is provided. During the mold closing process, the double-headed electric telescopic rod is extended to drive the second top arc-shaped support plates on both sides to move backwards. When the second top arc-shaped support plates move, the fiber ribs can be straightened, so that the fiber ribs can be completely dropped into the lower rib placement groove, effectively preventing one side or both sides of the fiber ribs from being separated from the lower rib placement groove, resulting in an incomplete mold closing or an inaccurate rubber encapsulation position defect. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a left side axial view of the present invention;

[0038] Figure 2 It is a schematic diagram of the upper mold and the lower mold parting of the present invention;

[0039] Figure 3 It is a structural schematic diagram of the lower mold of the present invention;

[0040] Figure 4 A bottom view of the upper die of the present invention;

[0041] Figure 5 is an axial view of the straightening assembly of the present invention;

[0042] Figure 6 is a side view of the straightening assembly of the present invention;

[0043] Figure 7 It is a schematic diagram of the upper mold and the lower mold after the mold is closed;

[0044] Figure 8 A half-section diagram of the upper mold and the lower mold after the mold is closed;

[0045] Fig. 9 It is a schematic diagram of the fiber umbrella rib and umbrella frame after being formed according to the present invention;

[0046] Fig.10 This is the force diagram of the fiber ribs and umbrella frame separated.

[0047] In the figure: 101, rubber coating frame; 102, lifting mechanism; 103, support seat; 2, lower mold; 201, lower total rubber groove; 202, lower rubber distribution groove; 203, lower rib placement groove; 204, lower rubber flow groove; 205, slope; 206, lower rubber coating groove; 3, upper mold; 301, convex block; 302, inclined block; 4, ejector assembly; 401, rotating shaft; 402, cam; 403, movable plate; 404, first spring; 405, ejector rod; 5, straightening assembly; 5 01, fixed block; 502, movable block; 503, second spring; 504, first top arc-shaped support plate; 505, movable plate; 506, double-headed electric telescopic rod; 507, vertical support block; 508, horizontal plate; 509, second top arc-shaped support plate; 510, limit column; 511, clearance; 6, ranging sensor; 701, longitudinal support block; 702, side arc-shaped support plate; 703, vertical groove; 8, umbrella frame; 9, fiber rack top rod; 10, connecting part. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] like Figure 1-Figure 10As shown, the present invention provides a technical solution: a glue coating device for automatic glue coating of fiber umbrella ribs, comprising a glue coating frame 101, a lifting mechanism 102, a glue injection assembly and a controller, a support seat 103 is fixed to the bottom of the lifting mechanism 102, a U-shaped lower mold 2 is arranged on the front of the glue coating frame 101, a U-shaped upper mold 3 is fixed to the bottom of the support seat 103, and the lifting mechanism 102 drives the support seat 103 to move up and down, thereby realizing the mold separation and mold closing between the lower mold 2 and the upper mold 3.

[0050] like Figure 2-Figure 4 As shown, the lower mold 2 is provided with a lower main glue groove 201 and two lower glue separation grooves 202, and the two lower glue separation grooves 202 are respectively located on both sides of the lower main glue groove 201 and are connected to the lower main glue groove 201. In this scheme, the cross-sections of the lower main glue groove 201 and the lower glue separation groove 202 are both semicircular, and the arc diameter of the lower glue separation groove 202 is smaller than the arc diameter of the lower main glue groove 201. It can be known that an upper main glue groove and two upper glue separation grooves are provided on the upper mold 3, and the lifting mechanism 102 drives the upper mold 3 to move downward to After the mold is closed, a U-shaped glue outer flow channel is formed between the lower main glue groove 201 and the upper main glue groove, and between the lower glue dividing groove 202 and the upper glue dividing groove on each side. A groove is opened on the lower mold 2 between the two lower glue dividing grooves 202. The depth of the groove is 3-8mm. A plurality of lower rib placement grooves 203 are opened on the groove. Lower glue-coating grooves 206 are opened on both sides of the lower rib placement grooves 203. It should be understood that the shape of the lower glue-coating groove 206 depends on the shape of the glue-coating at the end of the fiber rib.

[0051] A lower glue flow groove 204 is also provided on the lower mold 2, and the lower glue separation groove 202 on one side and the lower glue encapsulation groove 206 are connected through the lower glue flow groove 204, and a slope 205 is formed between the lower glue encapsulation groove 206 and the lower glue flow groove 204. Figure 4As shown, a convex block 301 is arranged on the upper mold 3 between the two upper glue separation grooves, and the convex block 301 is adapted to the groove, an upper rib placement groove, an upper glue groove and an upper glue circulation groove are opened on the convex block 301, and an inclined block 302 is integrally formed on the side of the upper glue groove facing the upper glue circulation groove. After the mold is closed, a placement channel with a circular cross-section is formed between the lower rib placement groove 203 and the upper rib placement groove, and the placement channel is adapted to the fiber rib, and a horizontal glue channel is formed between the lower glue groove 206 and the upper glue groove. The molten colloid filled in the glue channel is solidified to form a glue block. In this scheme, the depth of the lower glue groove 206 is The arc diameter of the fiber rib placed in the lower rib placement groove 203 is greater than that of the lower rib placement groove 203. Both sides of the fiber rib placed in the lower rib placement groove 203 extend into the lower rubber coating groove 206. In this way, after the mold closing and rubber coating are completed, both sides of the fiber rib after rubber coating are located in the formed rubber coating block, which can increase the connection strength of the fiber rib after rubber coating, thereby preventing the fiber rib from being separated from the rubber coating block. A horizontal rubber inner side flow channel is formed between the lower rubber flow groove 204 and the upper rubber flow groove, wherein a connecting channel is formed between the slope 205 and the side of the inclined block 302, and the connecting channel gradually converges toward the side of the placement channel. The molten colloid filled in the connecting channel is solidified to form a Fig.10 The connecting portion 10 is shown.

[0052] The fiber ribs are placed in the lower rib placement groove 203. After the mold is closed, the molten glue is injected into the outer flow channel of the glue through the glue injection component. The molten glue enters the glue encapsulation channel through the inner flow channel and the connecting channel of the glue. After the glue is solidified, a Fig. 9 The umbrella frame 8 shown is composed of a plastic frame and fiber ribs. In this solution, due to the provision of a connecting channel, the connecting portion 10 is inclined downwardly close to the rubber-coated block of the fiber ribs, and the thickness gradually decreases.

[0053] In this way, Fig.10 As shown, the umbrella frame 8 is placed on the fiber-setting frame through the transfer mechanism disclosed in the prior art (the patent with the publication number CN115026995A), and the top rod 9 of the fiber-setting frame longitudinally supports the fiber ribs. The frame bodies on both sides of the plastic frame are pressed downward by the material distribution mechanism. Since the contact surface between the connecting portion 10 and the rubber-coated block is small, the stress is concentrated, and the connecting portion 10 can rotate at a large angle around the connecting portion of the connecting portion 10 and the plastic block, it is convenient to separate the connecting portion 10 from the plastic block. In addition, since the connecting portion 10 is arranged obliquely downward, when the frame bodies on both sides of the plastic frame are pressed downward, it can be known from the decomposition of the force that the connecting portion 10 will receive a vertical force and an outward pulling force. Compared with the force on the fiber ribs, the two sides of the fiber ribs will be subjected to axial forces in two opposite directions along the axial direction of the fiber ribs, thereby preventing the fiber ribs from bending due to torsion when the fiber ribs are separated, thereby further improving the product quality.

[0054] like Figure 1 and Figure 2 As shown, a lifting assembly 4 is provided at the bottom of the lower mold 2, and the umbrella frame 8 is pushed upward by the lifting assembly 4, so that the transfer mechanism can transfer the umbrella frame 8 conveniently.

[0055] Specifically, the top material assembly 4 includes a plurality of horizontally arranged rotating shafts 401, which are movably connected to the vertical plate supporting the lower mold 2. In the present embodiment, the number of rotating shafts 401 is set to two, and a driving member is arranged on the outer side of the rotating shaft 401, which drives the rotating shaft 401 to rotate in the same direction. The driving member can be two motors connected to the rotating shaft 401, that is, the two rotating shafts 401 are driven to rotate by the rotation of the two motors. Of course, the driving member can also be composed of a motor, three connecting wheels and a belt, one connecting wheel is fixed to the output end of the motor, and the other two connecting wheels are respectively fixed to the two rotating shafts 401. When the motor rotates, the two connecting wheels are driven to rotate in the same direction through the belt.

[0056] A cam 402 is fixed on the shaft body of the rotating shaft 401, a movable plate 403 is arranged on the top of the cam 402, and a plurality of first guide telescopic rods and a plurality of first springs 404 are fixed between the movable plate 403 and the lower mold 2, the first guide telescopic rods are located in the spiral coil of the first spring 404, and a plurality of longitudinally distributed push rods 405 are fixed to the top of the movable plate 403, and the push rods 405 are movably connected with the lower mold 2. When the cam 402 is at the lowest point in its rotation cycle, the top end surface of the push rod 405 and the bottom end surface of the lower rubber coating groove 206 are located in the same horizontal plane, that is, the rubber coating block formed in the rubber coating groove can be pushed up by the rotation of the cam 402 (this is the mold separation state).

[0057] In this solution, guide grooves are provided at the four corners of the lower mold 2, and guide rods are fixed at the four corners of the bottom end of the upper mold 3. The guide rods are adapted to the guide grooves. A distance measuring sensor 6 is fixed to the bottom end of one of the guide rods, and a receiver is fixed in the guide groove corresponding to the guide rod. The distance between the lower mold 2 and the upper mold 3 is measured by the distance measuring sensor 6, and the receiver is electrically connected to the controller. The distance measuring sensor 6 can be an infrared distance measuring sensor or an ultrasonic distance measuring sensor.

[0058] When the rubber coating is completed and the upper mold 3 moves upward, the distance between the lower mold 2 and the upper mold 3 gradually increases, and the controller controls the driving member to drive the rotating shaft 401 to rotate. The distance between the lower mold 2 and the upper mold 3 is related to the angle of the rotating shaft 401, that is, after mold separation, as the distance between the lower mold 2 and the upper mold 3 increases, the rotating shaft 401 drives the cam 402 to rotate from the lowest position to the highest position. When the distance between the lower mold 2 and the upper mold 3 reaches the maximum, the cam 402 is at the highest position, thereby pushing up the rubber coating block formed in the rubber coating groove, making it convenient for the transfer mechanism to transfer the umbrella frame 8. Similarly, when the upper mold 3 moves downward, the controller controls the driving member to drive the rotating shaft 401 to rotate continuously. When the distance between the lower mold 2 and the upper mold 3 reaches the minimum, the top end surface of the push rod 405 and the bottom end surface of the lower rubber coating groove 206 are located in the same horizontal plane.

[0059] In a specific embodiment of this solution, Figure 3 As shown, a longitudinal support block 701 is arranged in the middle of the lower mold 2, and the lower rib placement groove 203 is distributed on the top of the longitudinal support block 701. The top surface of the longitudinal support block 701 is higher than the top surface of the groove. A vertical groove 703 connected to the lower rib placement groove 203 is opened on the top of the longitudinal support block 701, and two slopes extending outward are opened on the top of the vertical groove 703.

[0060] In this way, when the fiber feeding device delivers the fiber ribs to the top of the lower mold 2 and unloads downward, the fiber ribs will enter the longitudinal support block 701 and the lower rib placement groove 203 of the lower mold 2 through the large-diameter opening formed by the two slopes of the longitudinal support block 701 and the vertical groove 703, thereby preventing the fiber ribs from being unable to be fully molded due to the offset of the groove entry position.

[0061] In another specific embodiment of the present scheme, a straightening component 5 is provided at the bottom end of the upper mold 3, wherein the straightening component 5 includes two fixed blocks 501, a movable block 502 is provided at the bottom of the fixed block 501, a plurality of second springs 503 and a plurality of second guide telescopic rods are fixed between the fixed block 501 and the movable block 502, and a plurality of first top arc support plates 504 equal in number to the lower rib placement grooves 203 are fixed at the bottom end of the movable block 502. In addition, in order to prevent the fiber ribs from being damaged by pressure and to increase the friction between the first top arc support plates 504 and the fiber ribs, the first top arc support plates 504 are made of rubber material.

[0062] In this way, when the mold is closed, the bottom of the first top arc-shaped support plate 504 presses the top of the fiber rib located on the longitudinal support block 701, so as to position the fiber rib in the lower rib placement groove 203, thereby preventing the fiber rib from deviating from the rubber-coated position due to lateral movement during mold closing, thereby further improving product quality.

[0063] In actual production, some fiber ribs may be bent. In this solution, although the middle part of the fiber rib is squeezed and fixed by the first top arc-shaped support plate 504, the rods on both sides thereof will still be warped in different directions. Thus, during mold closing, one or both sides of the fiber rib may be separated from the lower rib placement groove 203, resulting in failure to completely close the mold or inaccurate rubber encapsulation position. Therefore, in another embodiment of this solution, a plurality of side arc-shaped support plates 702 are fixed on both sides of the longitudinal support block 701, and the arc-shaped grooves of the side arc-shaped support plates 702 are adapted to the fiber ribs, wherein, as Figure 5 As shown, the straightening assembly 5 also includes a moving plate 505 movably plugged with the moving block 502, a plurality of vertical support blocks 507 are arranged at the bottom of the moving plate 505, a horizontal plate 508 is fixed at the bottom end of the vertical support block 507, a plurality of second top arc support plates 509 equal in number to the lower rib placement grooves 203 are fixed at the bottom end of the horizontal plate 508, a spacing of 1-5 mm is formed between the first top arc support plate 504 and the second top arc support plate 509, a plurality of vertical support blocks 507 are fixed at the top end of the vertical support block 507, and a plurality of vertical support blocks 507 are fixed at the top end of the vertical support block 507. A limit column 510 is provided, and the top diameter of the limit column 510 is larger than the diameter of its rod body. The limit column 510 is movably connected to the movable plate 505. In the initial state, under the action of gravity of the vertical support block 507 and the second top arc-shaped support plate 509, a clearance gap 511 is formed between the top surface of the vertical support block 507 and the movable plate 505. A plurality of double-headed electric telescopic rods 506 are arranged between the two movable blocks 502, and the two telescopic ends of the double-headed electric telescopic rods 506 are respectively fixed to the side surfaces of the movable plate 505.

[0064] In this way, when closing the mold, the upper mold 3 moves downward until the first top arc-shaped support plate 504 and the fiber ribs are squeezed against each other to achieve the positioning of the fiber ribs in the lower rib placement grooves 203. The controller controls the lifting mechanism 102 to stop working. At this time, the lower mold 2 and the upper mold 3 are not completely closed, and the second top arc-shaped support plate 509 is in contact with the top of the fiber ribs. The controller controls the double-headed electric telescopic rod 506 to extend. The extension of the double-headed electric telescopic rod 506 drives the second top arc-shaped support plates 509 on both sides to move backwards. Since the arc groove at the bottom of the second top arc-shaped support plate 509 is in contact with the top of the fiber ribs, the second top arc-shaped support plate 509 can straighten the fiber ribs when moving, so that the fiber ribs can fall completely into the lower rib placement grooves 203. Finally, the lifting mechanism 102 is started by the controller to complete the closing of the mold.

[0065] In addition, it should be noted that in order to prevent the second top arc support plate 509 from being squeezed by the side rod of the fiber rib and causing the fiber rib to bend, when the mold is closed, the second top arc support plate 509 will be squeezed by the fiber rib. Under the action of this squeezing force, the vertical support block 507 moves upward to reduce the clearance 511.

[0066] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. A glue coating device for automatically coating fiber umbrella ribs, comprising a glue coating frame (101), a lifting mechanism (102), a glue injection component and a controller, wherein a support seat (103) is fixed at the bottom of the lifting mechanism (102), and the device is characterized in that: A U-shaped lower mold (2) is arranged on the front of the rubber encapsulation frame (101), and a U-shaped upper mold (3) is fixed to the bottom end of the support seat (103); The lower mold (2) is provided with a lower main glue groove (201) and two lower sub-glue grooves (202), and the upper mold (3) is provided with an upper main glue groove and two upper sub-glue grooves. After the molds are closed, a U-shaped glue outer flow channel is formed between the lower main glue groove (201) and the upper main glue groove, and between the lower sub-glue groove (202) and the upper sub-glue groove on each side. A groove is provided on the lower mold (2) between the two lower glue separation grooves (202), a lower rib placement groove (203) is provided on the groove, lower glue encapsulation grooves (206) are provided on both sides of the lower rib placement groove (203), and a lower glue circulation groove (204) is also provided on the lower mold (2), the lower glue separation groove (202) on one side and the lower glue encapsulation groove (206) are connected via the lower glue circulation groove (204), and a slope (205) is formed between the lower glue encapsulation groove (206) and the lower glue circulation groove (204); A convex block (301) is provided on the upper mold (3) between the two upper glue separation grooves, the convex block (301) is matched with the groove, an upper rib placement groove, an upper glue coating groove and an upper glue circulation groove are provided on the convex block (301), and an inclined block (302) is fixed on the side of the upper glue coating groove facing the upper glue circulation groove; After the mold is closed, a placement channel with a circular cross section is formed between the lower rib placement groove (203) and the upper rib placement groove, the placement channel is adapted to the fiber rib, a horizontal glue encapsulation channel is formed between the lower glue encapsulation groove (206) and the upper glue encapsulation groove, and a horizontal glue inner side flow channel is formed between the lower glue flow groove (204) and the upper glue flow groove, wherein a connecting channel is formed between the slope (205) and the side surface of the inclined block (302), and the connecting channel gradually converges toward the side of the placement channel; Placing the fiber ribs in the lower rib placement groove (203), and after closing the mold, injecting liquid glue into the outer flow channel of the glue through the glue injection component, and the liquid glue enters the glue encapsulation channel through the inner flow channel of the glue and the connecting channel, and after cooling, an umbrella frame (8) is formed; A material pushing component (4) is provided at the bottom of the lower mold (2), and the umbrella frame (8) is pushed upward by the material pushing component (4), so that the transfer mechanism can transfer the umbrella frame (8) conveniently; A longitudinal support block (701) is arranged in the middle of the lower mold (2), and the lower rib placement grooves (203) are distributed on the top of the longitudinal support block (701); The top surface of the longitudinal support block (701) is higher than the top surface of the groove, a vertical groove (703) connected to the lower rib placement groove (203) is formed on the top of the longitudinal support block (701), and two slopes extending outward are formed on the top of the vertical groove (703); A straightening component (5) is provided at the bottom end of the upper mold (3); The straightening assembly (5) comprises two fixed blocks (501), a movable block (502) is arranged at the bottom of the fixed block (501), a plurality of second springs (503) and a plurality of second guide telescopic rods are fixed between the fixed block (501) and the movable block (502), and a plurality of first top arc-shaped support plates (504) equal in number to the number of lower rib placement grooves (203) are fixed at the bottom end of the movable block (502); When the mold is closed, the bottom of the first top arc-shaped support plate (504) presses the top of the fiber rib located on the longitudinal support block (701); A plurality of side arc-shaped support plates (702) are fixed on both sides of the longitudinal support block (701), and the arc-shaped grooves of the side arc-shaped support plates (702) are adapted to the fiber ribs; The straightening assembly (5) further comprises a movable plate (505) movably plugged into the movable block (502); a plurality of vertical support blocks (507) are arranged at the bottom of the movable plate (505); a horizontal plate (508) is fixed at the bottom end of the vertical support block (507); a plurality of second top arc-shaped support plates (509) equal in number to the number of lower rib placement grooves (203) are fixed at the bottom end of the horizontal plate (508); A plurality of limiting columns (510) are fixed to the top of the vertical support block (507), the limiting columns (510) are movably plugged with the movable plate (505), and a clearance gap (511) is formed between the top surface of the vertical support block (507) and the movable plate (505); A plurality of double-headed electric telescopic rods (506) are arranged between the two movable blocks (502), and the two telescopic ends of the double-headed electric telescopic rods (506) are respectively fixed to the side surfaces of the movable plate (505).

2. The automatic glue encapsulation device for fiber umbrella ribs according to claim 1 is characterized in that: The ejecting assembly (4) comprises a plurality of horizontally arranged rotating shafts (401), and a driving member is arranged on the outer side of the rotating shaft (401), and the driving member drives the rotating shaft (401) to rotate in the same direction; A cam (402) is fixed on the shaft of the rotating shaft (401), a movable plate (403) is arranged on the top of the cam (402), and a plurality of first guide telescopic rods and a plurality of first springs (404) are fixed between the movable plate (403) and the lower mold (2); A plurality of longitudinally distributed push rods (405) are fixed to the top of the movable plate (403), and the push rods (405) are movably connected to the lower mold (2). When the cam (402) is at the lowest point in its rotation cycle, the top end surface of the push rod (405) and the bottom end surface of the lower rubber-coated groove (206) are located in the same horizontal plane.

3. The automatic glue encapsulation device for fiber umbrella ribs according to claim 1 is characterized in that: The lower die (2) is provided with guide grooves at four corners, and guide rods are fixed at four corners of the bottom end of the upper die (3), and the guide rods are adapted to the guide grooves; A distance measuring sensor (6) is fixed to the bottom end of one of the guide rods, and a receiver is fixed in the guide groove corresponding to the guide rod. The distance between the lower mold (2) and the upper mold (3) is measured by the distance measuring sensor (6), and the receiver is electrically connected to the controller.

4. The automatic rubber encapsulation device for fiber umbrella ribs according to claim 1 is characterized in that: The first top arc-shaped support plate (504) is made of elastic material, and a gap of 1-5 mm is formed between the first top arc-shaped support plate (504) and the second top arc-shaped support plate (509).

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