A dispensing machine

Abstract

This invention relates to a dispensing machine, comprising a frame on which an air pipe mechanism and a screw dispensing mechanism are mounted. A buffer mechanism and a glue infeed mechanism are sequentially connected between the air pipe mechanism and the screw dispensing mechanism. The buffer mechanism includes a buffer piston and a buffer housing. The buffer piston is slidably connected to the buffer housing and is connected to the air pipe mechanism. The buffer housing is connected to the glue infeed mechanism. In this dispensing machine, the relative movement of the buffer piston within the buffer housing relatively counteracts the deformation of the air pipe mechanism, preventing significant deformation of the mechanisms below the buffer housing and thus avoiding impact on the screw dispensing mechanism. This greatly reduces the failure rate of the dispensing machine, decreases maintenance frequency, extends the lifespan of the screw dispensing mechanism, thereby improving operational efficiency and reducing enterprise costs.

Description

Technical Field

[0001] This invention relates to the field of dispensing technology, and in particular to a dispensing machine. Background Technology

[0002] Dispensing machines are commonly used in electronic products. During operation, they are equipped with different dispensing mechanisms to meet the dispensing requirements of adhesives of varying viscosities. Existing dispensing mechanisms are mostly suitable for low-viscosity UV adhesives. However, due to the high viscosity of thermal adhesives, ordinary air blowing methods are ineffective for dispensing the adhesive from the glue container. Therefore, the dispensing method has been changed to a cylinder pressure dispensing method.

[0003] The cylinder is mounted on the frame of the dispensing machine. When the piston rod of the cylinder moves to dispense glue, the cylinder housing receives a thrust, which is transmitted to the frame, causing deformation of the frame and movement of the glue hose mechanism. Since the glue hose mechanism and the screw dispensing mechanism are threadedly connected, the movement of the glue hose mechanism will cause the connection between the glue hose mechanism and the screw dispensing mechanism to be stressed and damaged. This will lead to problems such as low dispensing rate in later maintenance, which also increases the operating cost. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a dispensing machine that can reduce the failure rate of the dispensing machine, decrease the frequency of maintenance, extend the lifespan of the screw dispensing mechanism, improve operational efficiency, and reduce enterprise costs.

[0005] To achieve the above objectives, the present invention provides a dispensing machine, including a frame, on which an air pipe mechanism and a screw dispensing mechanism are provided. A buffer mechanism and a glue infeed mechanism are sequentially connected between the air pipe mechanism and the screw dispensing mechanism. The buffer mechanism includes a buffer piston and a buffer housing. The buffer piston is slidably connected to the buffer housing. The buffer piston is connected to the air pipe mechanism, and the buffer housing is connected to the glue infeed mechanism.

[0006] In one embodiment of the present invention, the tracheal mechanism includes a tracheal piston and a tracheal housing, the tracheal housing being slidably connected in the tracheal housing, and a piston rod of a cylinder assembly being connected to the tracheal piston.

[0007] In one embodiment of the present invention, a support frame is provided on the frame, a stepped hole is provided on the support frame, a support member is detachably connected in the stepped hole, a mounting hole is provided in the middle of the support member, and a mounting part is provided at the bottom of the air tube mechanism, the mounting part is installed in the mounting hole.

[0008] In one embodiment of the present invention, the bottom of the air tube mechanism is provided with a first glue outlet channel, the inner wall of the first glue outlet channel is provided with a first internal thread, the top of the buffer piston is provided with a first external thread, the first internal thread is connected to the first external thread, the interior of the buffer piston is provided with a second glue outlet channel, and the first glue outlet channel is connected to the second glue outlet channel.

[0009] In one embodiment of the present invention, the buffer piston includes a buffer connecting part and a buffer piston body connected to each other. The first external thread is disposed on the top of the buffer connecting part. The buffer piston body is slidably connected to the buffer housing. At least one sealing mounting groove is provided on the outer wall of the buffer piston body. A sealing ring is installed in the sealing mounting groove. The sealing ring is located between the buffer piston body and the buffer housing to achieve a seal between the buffer piston body and the buffer housing.

[0010] In one embodiment of the present invention, a limiting groove is provided on the outer edge of the buffer piston body in the vertical direction, and a limiting screw is connected to the buffer housing, the limiting screw being slidably connected in the limiting groove.

[0011] In one embodiment of the present invention, the buffer shell includes an upper buffer shell and a lower buffer shell. The lower buffer shell has a second external thread on its bottom outer edge and a second internal thread on its top inner wall. The second external thread is connected to the second internal thread. The buffer shell has a third adhesive outlet channel inside it, and the third adhesive outlet channel is connected to the second adhesive outlet channel.

[0012] In one embodiment of the present invention, the glue feeding mechanism is provided with a fourth glue outlet channel with a rectangular cross-section, and the fourth glue outlet channel is connected to the third glue outlet channel.

[0013] In one embodiment of the present invention, the screw dispensing mechanism includes a screw housing and a screw body. The screw body is rotatably connected inside the screw housing. A motor assembly is connected to the screw body. A dispensing cavity is provided on the screw housing. A dispensing thread is provided on the screw body. A fifth dispensing channel is formed between the dispensing cavity and the dispensing thread. The fifth dispensing channel is connected to the fourth dispensing channel.

[0014] In one embodiment of the present invention, an air nozzle mechanism is connected to the bottom of the screw dispensing mechanism. The air nozzle mechanism is detachably connected to the screw dispensing mechanism. A sixth dispensing channel is provided inside the air nozzle mechanism, and the fifth dispensing channel is connected to the sixth dispensing channel.

[0015] The technical solution of the present invention has the following advantages compared with the prior art:

[0016] The dispensing machine of this invention, when the piston rod of the cylinder assembly drives the air pipe piston downward, the pressure generated by the air pipe piston within the air pipe mechanism is transmitted to the air pipe shell of the air pipe mechanism, generating a downward thrust. This creates an overturning moment on the support frame on the machine frame, causing deformation of the support component. Consequently, the air pipe mechanism undergoes a downward deformation. Due to the presence of a buffer mechanism, this deformation causes the buffer piston to move relative to the buffer shell, thus relatively offsetting the deformation of the air pipe mechanism. This prevents significant deformation of the mechanism below the buffer shell, ensuring that the screw dispensing mechanism is not affected. Therefore, this invention solves the problem in the prior art where deformation of the air pipe mechanism causes damage to the rigid connection between the air pipe mechanism and the screw dispensing mechanism, significantly reducing the failure rate of the dispensing machine, decreasing maintenance frequency, extending the lifespan of the screw dispensing mechanism, thereby improving operational efficiency and reducing enterprise costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the dispensing machine of the present invention;

[0019] Figure 2 This is a cross-sectional structural schematic diagram of the dispensing machine of the present invention;

[0020] Figure 3 yes Figure 2 A magnified schematic diagram of the partial structure at point A in the middle;

[0021] Figure 4 yes Figure 2 A magnified schematic diagram of the local structure at point B;

[0022] Figure 5 yes Figure 2 A magnified schematic diagram of the structure at point C in the middle;

[0023] Figure 6 yes Figure 2 A magnified schematic diagram of the local structure at point D;

[0024] Figure 7 yes Figure 2 A magnified schematic diagram of the structure at point E in the middle.

[0025] Explanation of reference numerals in the instruction manual:

[0026] 1. Frame; 101. Support frame; 102. Stepped hole; 103. Support component; 104. Mounting hole;

[0027] 2. Air tube mechanism; 201. Air tube piston; 202. Air tube housing; 203. Cylinder assembly; 204. Mounting part; 205. First dispensing channel; 206. First internal thread;

[0028] 3. Screw dispensing mechanism; 301. Screw housing; 302. Screw body; 303. Motor assembly; 304. Dispensing cavity; 305. Dispensing thread; 306. Fifth dispensing channel; 307. Motor housing; 308. Motor rotating shaft; 309. Rotating hole; 310. Rotary transmission part; 311. Upper screw shell; 312. Lower screw shell; 313. Bearing mounting part; 314. Bearing; 315. Screw rotating part; 316. Screw dispensing part; 317. Bearing positioning surface; 318. Bearing cover; 319. Fifth external thread; 320. Fifth internal thread; 321. Sealing mounting part; 322. Sixth external thread;

[0029] 4. Buffer mechanism; 401. Buffer piston; 402. Buffer housing; 403. First external thread; 404. Second dispensing channel; 405. Buffer connection part; 406. Buffer piston body; 407. Sealing mounting groove; 408. Sealing ring; 409. Limiting groove; 410. Limiting screw; 411. Buffer upper shell; 412. Buffer lower shell; 413. Second external thread; 414. Second internal thread; 415. Third dispensing channel; 416. Sealing part; 417. Buffer sliding part; 418. Third external thread;

[0030] 5. Glue inlet mechanism; 501. Fourth glue outlet channel; 502. Third internal thread; 503. First part; 504. Second part;

[0031] 6. Air nozzle mechanism; 601. Sixth dispensing channel; 602. Air nozzle connector; 603. Air nozzle; 604. First connector; 605. Second connector; 606. Sixth internal thread; 607. Seventh external thread; 608. Seventh internal thread; 609. Eighth internal thread; 610. Eighth external thread; 611. Contact surface;

[0032] 7. Exhaust mechanism; 701. Exhaust port; 702. Exhaust screw; 703. Fourth internal thread; 704. Fourth external thread; 705. Sealing surface. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0034] Example 1:

[0035] Reference Figures 1 to 7 As shown, the dispensing machine of the present invention includes a frame 1, on which an air pipe mechanism 2 and a screw dispensing mechanism 3 are provided. A buffer mechanism 4 and a glue infeed mechanism 5 are sequentially connected between the air pipe mechanism 2 and the screw dispensing mechanism 3. The buffer mechanism 4 includes a buffer piston 401 and a buffer housing 402. The buffer piston 401 is slidably connected to the buffer housing 402. The buffer piston 401 is connected to the air pipe mechanism 2, and the buffer housing 402 is connected to the glue infeed mechanism 5.

[0036] The dispensing machine includes a frame 1, on which an air pipe mechanism 2 and a screw dispensing mechanism 3 are mounted. The air pipe mechanism 2 provides the dispensing power to the glue inside, allowing the glue to flow to the screw dispensing mechanism 3 for precise metering. A buffer mechanism 4 and a glue feeding mechanism 5 are sequentially arranged between the air pipe mechanism 2 and the screw mechanism. In the prior art, the air hose mechanism 2 and the screw dispensing mechanism 3 are rigidly connected by threads. However, when the air hose mechanism 2 blows air to dispense glue, the air hose piston 201 of the air hose mechanism 2 moves downward, increasing the air pressure between the air hose piston 201 and the air hose housing 202. Therefore, the movement of the air hose piston 201 transmits a downward thrust to the air hose housing 202. Since the air hose housing 202 is fixed to the frame 1, this thrust generates an overturning moment on the frame 1, causing deformation of the frame 1. When the frame 1 deforms, the air hose mechanism 2 also undergoes displacement. Because the prior art air hose mechanism 2 and the screw dispensing mechanism 3 are rigidly connected by threads, the displacement of the air hose mechanism 2 can cause the connection mechanism between the air hose mechanism 2 and the screw dispensing mechanism 3 to be damaged due to stress. Subsequent maintenance will lead to a sharp decrease in operational efficiency. Therefore, this invention designs a buffer mechanism 4 to buffer... Mechanism 4 includes a buffer piston 401 and a buffer housing 402. The buffer piston 401 is connected to the air pipe mechanism 2, and the buffer housing 402 is connected to the screw dispensing mechanism 3. When the movement of the air pipe piston 201 transmits a downward thrust to the air pipe housing 202, the thrust generates an overturning moment on the frame 1. The overturning moment causes the frame 1 to deform, and the air pipe mechanism 2 to displace. The air pipe mechanism 2 is connected to the buffer piston 401, and the buffer piston 401 is slidably connected in the buffer housing 402. Therefore, the displacement generated by the air pipe mechanism 2 is canceled out by the relative sliding of the buffer piston 401 and the buffer housing 402. Thus, the displacement generated by the air pipe mechanism 2 will not be transmitted to the connection mechanism between the air pipe mechanism 2 and the screw dispensing mechanism 3. Therefore, the connection mechanism between the air pipe mechanism 2 and the screw dispensing mechanism 3 will not be damaged by force, greatly reducing the failure rate, thereby improving operating efficiency and reducing maintenance costs.

[0037] In one embodiment, the tracheal mechanism 2 includes a tracheal piston 201 and a tracheal housing 202, the tracheal housing 202 being slidably connected in the tracheal housing 202, and a piston rod of a cylinder assembly 203 being connected to the tracheal piston 201.

[0038] The tracheal mechanism 2 includes a tracheal piston 201 and a tracheal shell 202. The tracheal piston 201 is slidably connected inside the tracheal shell 202. Therefore, the tracheal piston 201 and the tracheal shell 202 can slide relative to each other, thereby compressing the gas inside the tracheal tube and providing the power for the glue to be dispensed from the tracheal mechanism 2. The tracheal piston 201 needs to slide relative to the tracheal housing 202, so it needs to be powered to move. The power is provided by the cylinder assembly 203. The housing of the cylinder assembly 203 is fixed on the frame 1. The piston rod of the cylinder assembly 203 is connected to the tracheal piston 201. When the piston rod of the cylinder assembly 203 moves downward, it drives the tracheal piston 201 to move downward. The tracheal housing 202 is fixed on the frame 1. The downward movement of the tracheal piston 201 compresses the gas in the tracheal mechanism 2, making the gas pressure in the tracheal mechanism 2 greater than the pressure outside the tracheal mechanism 2. As a result, the gas pressure provides a thrust to the adhesive at the bottom of the tracheal mechanism 2, causing the adhesive in the tracheal mechanism 2 to flow out of the tracheal mechanism 2.

[0039] In one embodiment, a support frame 101 is provided on the frame 1, and a stepped hole 102 is provided on the support frame 101. A support member 103 is detachably connected in the stepped hole 102. A mounting hole 104 is provided in the middle of the support member 103. A mounting part 204 is provided at the bottom of the air tube mechanism 2, and the mounting part 204 is installed in the mounting hole 104.

[0040] A support frame 101 is installed on the frame 1 to fix the air tube mechanism 2. Since the air tube mechanism 2 comes in different specifications, different specifications of air tube mechanism 2 are required for different application scenarios. Therefore, the air tube mechanism 2 needs to be detachably connected to the frame 1. A stepped hole 102 is provided on the support frame 101, and a support member 103 is detachably connected within the stepped hole 102. The support member 103 comes in different specifications, and different specifications of support member 103 are adapted to different specifications of air tube mechanism 2. Therefore, when it is necessary to replace the air tube mechanism 2, first find the support member 103 that is compatible with the air tube mechanism 2, install the support member 103 into the stepped hole 102, and then install the air tube mechanism 2 onto the compatible support member 103. This achieves interchangeability of various specifications of air tube mechanisms 2 for the dispensing machine, improving its versatility. The bottom of the airway mechanism 2 is provided with a mounting part 204. Generally, the specifications of the mounting part 204 of different specifications of airway mechanisms 2 are not the same. Therefore, different specifications of airway mechanisms 2 generally refer to mounting parts 204 of different sizes. The middle of the support member 103 is provided with a mounting hole 104. The mounting hole 104 matches the size of the mounting part 204. Therefore, the mounting hole 104 also has different specifications. Thus, different specifications of support member 103 refer to the different sizes of the mounting hole 104 on the support member 103. The airway mechanism 2 is connected to the frame 1 by the matching of the mounting part 204 and the mounting hole 104.

[0041] In one embodiment, the bottom of the air tube mechanism 2 is provided with a first adhesive outlet channel 205, the inner wall of the first adhesive outlet channel 205 is provided with a first internal thread 206, the top of the buffer piston 401 is provided with a first external thread 403, the first internal thread 206 is connected to the first external thread 403, the interior of the buffer piston 401 is provided with a second adhesive outlet channel 404, and the first adhesive outlet channel 205 is connected to the second adhesive outlet channel 404.

[0042] The bottom of the air tube mechanism 2 is provided with a first glue outlet channel 205. The piston rod of the cylinder assembly 203 pushes the air tube piston 201 of the air tube mechanism 2 to move downward, increasing the gas pressure inside the air tube shell 202, and pushing the glue inside the air tube shell 202 to flow out from the air tube shell 202 through the first glue outlet channel 205. The top of the buffer piston 401 is connected to the bottom of the air tube mechanism 2 by a thread, so that the glue in the air tube shell 202 can flow to the buffer piston 401. Furthermore, the bottom inner wall of the first glue outlet channel 205 on the air tube shell 202 is provided with a first internal thread 206, and the top outer edge of the buffer piston 401 is provided with a first external thread 403. The air tube shell 202 and the buffer piston 401 are threadedly connected by the cooperation of the first internal thread 206 and the first external thread 403, thereby realizing the connection between the buffer mechanism 4 and the air tube mechanism 2. The interior of the buffer mechanism 4 is hollow and forms a second glue outlet channel 404. The first glue outlet channel 205 and the second glue outlet channel 404 are connected, so that the glue in the air tube mechanism 2 can flow to the buffer mechanism 4 through the first glue outlet channel 205 and the second glue outlet channel 404.

[0043] In one embodiment, the buffer piston 401 includes a buffer connection portion 405 and a buffer piston body 406 connected to each other. The first external thread 403 is disposed on the top of the buffer connection portion 405. The buffer piston body 406 is slidably connected to the buffer housing 402. At least one sealing mounting groove 407 is provided on the outer wall of the buffer piston body 406. A sealing ring 408 is installed in the sealing mounting groove 407. The sealing ring 408 is located between the buffer piston body 406 and the buffer housing 402 to achieve a seal between the buffer piston body 406 and the buffer housing 402.

[0044] The buffer mechanism 4 includes a buffer piston 401 and a buffer housing 402. The buffer piston 401 is a stepped shaft shape, including a buffer connecting part 405 and a buffer piston body 406 connected to each other. A first external thread 403 is provided on the top of the buffer connecting part 405 of the buffer piston 401. The cooperation of the first external thread 403 and the first internal thread 206 fixes the top of the buffer connecting part 405 to the bottom of the air tube housing 202. The buffer piston body 406 is slidably connected in the buffer housing 402 to realize the relative sliding between the buffer piston 401 and the buffer housing 402. The displacement of the air tube mechanism 2 is counteracted by the relative sliding between the buffer piston 401 and the buffer housing 402, thereby reducing the failure rate of the dispensing machine. At least one [missing information] is provided on the buffer piston body 406. The sealing mounting groove 407 is preferably provided on the buffer piston body 406 with two mounting sealing grooves to effectively prevent the occurrence of glue overflow. The sealing mounting groove 407 is installed in the sealing mounting groove 407, so that the sealing ring 408 is located between the buffer piston body 406 and the buffer housing 402, thereby realizing the seal between the buffer piston body 406 and the buffer housing 402 and preventing the occurrence of glue overflow. Further, the buffer piston body 406 includes a sealing part 416 and a buffer sliding part 417. The sealing part 416 is used to realize the seal between the buffer piston body 406 and the buffer housing 402, and the buffer sliding part 417 is used to realize the relative sliding between the buffer piston 401 and the buffer housing 402. The sealing mounting groove 407 is provided on the sealing part 416 of the buffer piston body 406.

[0045] In one embodiment, a limiting groove 409 is provided on the outer edge of the buffer piston body 406 in the vertical direction, and a limiting screw 410 is connected to the buffer housing 402, the limiting screw 410 being slidably connected in the limiting groove 409.

[0046] Since the buffer piston 401 is connected to the air pipe housing 202 by threads, there is a possibility of relative rotation between the buffer piston 401 and the air pipe housing 202 during the operation of the dispensing machine. After the dispensing machine has been operating for a long time, the buffer piston 401 may fall off the air pipe housing 202, thereby causing the dispensing machine to malfunction and be unable to complete the dispensing work. A limiting groove 409 is provided vertically on the outer edge of the buffer piston body 406. A limiting screw 410 is connected to the buffer housing 402. The limiting screw 410 is slidably connected in the limiting groove 409. Since the limiting screw 410 is fixedly connected to the buffer housing 402, the limiting screw 410 is fixed on the buffer housing 402. The limiting screw 410 passes through the limiting groove 409. When the limiting groove 409 moves with the buffer piston 401, it is constrained by the limiting screw 410, so that the rotational degree of freedom of the buffer piston 401 along the Z-axis is constrained, and only the degree of freedom of movement along the Z-axis exists. Therefore, the buffer piston 401 and the air pipe housing 202 cannot generate relative rotation, so that the buffer piston 401 will not fall off the cylinder housing, and can effectively convert the pressure brought by the downward pressing of the air pipe piston 201 into a vertical sliding distance.

[0047] In one embodiment, the buffer housing 402 includes an upper buffer housing 411 and a lower buffer housing 412. The lower buffer housing 411 has a second external thread 413 on its bottom outer edge and a second internal thread 414 on its top inner wall. The second external thread 413 is connected to the second internal thread 414. The buffer housing 402 has a third adhesive outlet channel 415 inside it, which is connected to the second adhesive outlet channel 404.

[0048] The buffer housing 402 includes an upper buffer housing 411 and a lower buffer housing 412. The upper buffer housing 411 enables relative sliding between the buffer housing 402 and the buffer piston 401, while the lower buffer housing 412 connects the buffer housing 402 to the glue infeed mechanism 5. The split design of the buffer housing 402 makes cleaning residual glue more convenient when needed. A second external thread 413 is provided on the bottom outer edge of the upper buffer housing 411, and a second internal thread 414 is provided on the top inner wall of the lower buffer housing 412. The connection between the upper buffer housing 411 and the lower buffer housing 412 is achieved through the cooperation of the second external thread 413 and the second internal thread 414. The buffer housing 402 has a third adhesive outlet channel 415 inside. Furthermore, the upper buffer housing 411 and the lower buffer housing 412 have adhesive outlet channels inside. The adhesive outlet channels of the upper buffer housing 411 and the lower buffer housing 412 form the third adhesive outlet channel 415. The second adhesive outlet channel 404 is connected to the third adhesive outlet channel 415, so that the adhesive in the air tube mechanism 2 flows to the buffer mechanism 4 through the second adhesive outlet channel 404, and the adhesive flowing into the buffer mechanism 4 then flows to the adhesive inlet mechanism 5 through the third adhesive outlet channel 415.

[0049] In one embodiment, the glue feeding mechanism 5 is provided with a rectangular fourth glue outlet channel 501 inside, and the fourth glue outlet channel 501 is connected to the third glue outlet channel 415.

[0050] The glue feeding mechanism 5 connects the buffer mechanism 4 and the screw glue dispensing mechanism 3. The glue feeding mechanism 5 has a fourth glue dispensing channel 501 with a rectangular cross-section. The fourth glue dispensing channel 501 is connected to the third glue dispensing channel 415, allowing the glue in the buffer mechanism 4 to flow through the third glue dispensing channel 415 to the glue feeding mechanism 5. The glue from the glue feeding mechanism 5 then flows through the fourth glue dispensing channel 501 to the screw glue dispensing mechanism 3. The rectangular fourth glue dispensing channel 501 allows for more thorough contact between the glue and the screw on the screw contact mechanism, improving the glue dispensing effect and increasing the glue dispensing rate. Furthermore, a third external thread 418 is provided on the bottom outer edge of the buffer lower shell 412, and a third internal thread 502 is provided on the inner wall of the glue inlet mechanism 5 that connects to the buffer outer shell 402. The connection between the buffer outer shell 402 and the glue inlet mechanism 5 is achieved through the cooperation of the third external thread 418 and the third internal thread 502. In addition, the fourth glue outlet channel 501 is L-shaped, including a first part 503 and a second part 504. The first part 503 is the part that communicates with the third glue outlet channel 415, and the second part 504 is the part that communicates with the screw glue outlet mechanism 3. The first part 503 and the second part 504 are connected. A venting mechanism 7 is provided on one side of the glue inlet mechanism 5. The venting mechanism 7 includes a vent 701 and a vent screw 702. The position of the vent 701 shall not be higher than the lowest point of the fourth glue outlet channel 501. The vent screw 702 is detachably connected to the vent port 701, which is located on the glue inlet mechanism 5. The inner wall of the vent port 701 has a fourth internal thread 703, and the vent screw 702 has a fourth external thread 704. The detachable connection between the vent screw 702 and the vent port 701 is achieved through the engagement of the fourth internal thread 703 and the fourth external thread 704. The vent screw 702 has a sealing surface 705, and the vent port 701 has a sealing mounting groove 407. A sealing ring 408 is installed in the sealing mounting groove 407. When the vent screw 702 is tightened on the vent port 701, the sealing ring 408 abuts against the sealing surface 705 within the sealing mounting groove 407, thus achieving an effective seal. When glue needs to be changed, the vent screw 702 can be removed from the vent port 701 to expel excess air from the fourth glue outlet channel 501, preventing residual air from interrupting the glue line and reducing dispensing quality.

[0051] In one embodiment, the screw dispensing mechanism 3 includes a screw housing 301 and a screw body 302. The screw body 302 is rotatably connected to the screw housing 301. A motor assembly 303 is connected to the screw body 302. The screw housing 301 is provided with a dispensing cavity 304. The screw body 302 is provided with a dispensing thread 305. A fifth dispensing channel 306 is formed between the dispensing cavity 304 and the dispensing thread 305. The fifth dispensing channel 306 is connected to the fourth dispensing channel 501.

[0052] The screw dispensing mechanism 3 is responsible for feeding the adhesive flowing from the fourth dispensing channel 501 of the adhesive feeding mechanism 5 into the nozzle mechanism 6, so that the adhesive can be dispensed onto the desired position through the nozzle mechanism 6. The screw dispensing mechanism 3 includes a screw housing 301 and a screw body 302. The screw body 302 is rotatably connected inside the screw housing 301. The relative rotation of the screw body 302 and the screw housing 301 generates a force that causes the adhesive to move around the screw body 302 toward the nozzle mechanism 6. Furthermore, the screw mechanism is provided with a dispensing thread 305. The dispensing thread 305 has a fixed direction of rotation, so that the adhesive passing through the screw body 302 is along the direction of the nozzle mechanism 6. The dispensing thread 305 has a fixed pitch, and the amount of adhesive dispensed is precisely adjusted by the pitch and the rotation speed of the screw body 302. Furthermore, a motor assembly 303 is connected to the screw body 302. The motor assembly 303 is fixed to the frame 1. The motor assembly 303 includes a motor housing 307 and a motor rotating shaft 308. The motor housing 307 is fixed to the frame 1, and the motor rotating shaft 308 rotates relative to the motor housing 307. A rotating hole 309 is provided at the center of the end of the motor rotating shaft 308. The rotating hole 309 is cylindrical and has a tangent edge. The screw body 302 is connected to the motor rotating shaft 308 of the motor assembly 303. A rotation transmission part 310 is provided at the end of the screw body 302 connected to the motor rotating shaft 308. The shape and size of the rotation transmission part 310 match the shape and size of the rotating hole 309. Through the structural cooperation between the rotation transmission part 310 and the rotating hole 309, the rotational power of the motor assembly 303 is transmitted to the screw body 302 of the screw dispensing mechanism 3.The screw housing 301 includes an upper screw housing 311 and a lower screw housing 312. The upper screw housing 311 is used to connect the screw housing 301 to the frame 1 and to provide relative rotational support between the screw body 302 and the screw housing 301. Further, the upper screw housing 311 is provided with a bearing mounting part 313, which houses at least one bearing 314. The screw body 302 includes a screw rotating part 315 and a screw dispensing part 316. The screw rotating part 315 is connected to the inner ring of the bearing 314, and the outer ring of the bearing 314 is connected to the bearing mounting part 313. This allows the screw body 302 and the upper screw housing 311 to rotate relative to each other. To prevent the bearing 314 from shifting along the rotation axis within the bearing mounting part 313... A bearing positioning surface 317 is provided at the bottom of the bearing mounting part 313. One end of the outer ring of the bearing 314 abuts against the bearing positioning surface 317, and the other end of the outer ring of the bearing 314 is fixed by the bearing cover 318. A fifth external thread 319 is provided on the outer edge of the bearing cover 318, and a fifth internal thread 320 is provided on the top inner wall of the screw upper shell 311. The bearing cover 318 and the screw upper shell 311 are connected by the cooperation of the fifth internal thread 320 and the fifth external thread 319. A bearing positioning surface 317 is also provided on the bearing cover 318. When the bearing cover 318 is connected to the screw upper shell 311, the bearing positioning surface 317 on the bearing cover 318 abuts against the other end of the outer ring of the bearing 314, so that the bearing 314 is limited in the bearing mounting part 313. The upper screw housing 311 and the lower screw housing 312 are connected to each other. The screw glue outlet 316 cooperates with the lower screw housing 312. The screw glue outlet 316 is provided with a sealing surface 705. The lower screw housing 312 is provided with a sealing mounting part 321 corresponding to the sealing surface 705. A sealing ring 408 is installed on the sealing mounting part 321. When the sealing ring 408 is installed on the sealing mounting part 321, the inner wall of the sealing ring 408 abuts against the sealing surface 705, and the outer wall of the sealing ring 408 abuts against the side of the sealing mounting part 321. The sealing ring 408 here achieves the sealing between the screw body 302 and the screw housing 301, preventing glue from flowing to the bearing 314 and affecting the transmission efficiency of the screw body 302. The lower shell 312 of the screw is provided with a glue dispensing cavity 304, which is matched with a glue dispensing thread 305. The glue flowing into the glue dispensing cavity 304 is discharged to the air nozzle mechanism 6 along the axial direction of the screw body 302 through the glue dispensing thread 305. The gap between the glue dispensing cavity 304 and the glue dispensing thread 305 forms a fifth glue dispensing channel 306. The fifth glue dispensing channel 306 is connected to the fourth glue dispensing channel 501 of the glue feeding mechanism 5, so that the glue in the fourth glue dispensing channel 501 of the glue feeding mechanism 5 is discharged to the air nozzle mechanism 6 along the axial direction of the screw body 302 through the fifth glue dispensing channel 306 with the help of the glue dispensing thread 305.

[0053] In one embodiment, the bottom of the screw dispensing mechanism 3 is connected to an air nozzle mechanism 6, which is detachably connected to the screw dispensing mechanism 3. The air nozzle mechanism 6 is provided with a sixth dispensing channel 601, and the fifth dispensing channel 306 is connected to the sixth dispensing channel 601.

[0054] The bottom of the screw dispensing mechanism 3 is connected to an air nozzle mechanism 6, which facilitates the delivery of adhesive from the dispensing mechanism into the air nozzle 603, so that the adhesive can be applied to the desired location via the air nozzle 603. The air nozzle mechanism 6 is detachably connected to the screw dispensing mechanism 3. Further, the air nozzle mechanism 6 includes an air nozzle connector 602 and an air nozzle 603. The air nozzle connector 602 includes a first connector 604 and a second connector 605. The lower screw housing 312 of the screw dispensing mechanism 3 is connected to the first connector 604, the first connector 604 is connected to the second connector 605, and the second connector 605 is connected to the air nozzle 603. The lower screw housing 312 is detachably connected to the first connector 604, the first connector 604 is detachably connected to the second connector 605, and the second connector 605 is detachably connected to the air nozzle 603, thereby achieving a detachable connection between the air nozzle 603 and the screw dispensing mechanism 3, which facilitates the replacement of the air nozzle 603 during subsequent maintenance. Furthermore, a sixth external thread 322 is provided on the bottom outer wall of the screw lower housing 312, and a sixth internal thread 606 is provided on the top of the first connector 604. The screw lower housing 312 and the first connector 604 are detachably connected through the cooperation of the sixth internal thread 606 and the sixth external thread 322. A sealing mounting groove 407 is provided at the bottom of the sixth internal thread 606 on the first connector 604, and a sealing ring 408 is installed in the sealing mounting groove 407. When the first connector 604 is connected to the screw lower housing 312, the top of the sealing ring 408 abuts against the bottom plane of the screw lower housing 312, and the bottom of the sealing ring 408 abuts against the bottom plane of the sixth internal thread 606 on the first connector 604, thereby achieving a seal between the first connector 604 and the screw lower housing 312 and preventing glue overflow. The first connector 604 has a seventh external thread 607 on its middle outer wall, and the second connector 605 has a seventh internal thread 608 on its top inner wall. The detachable connection between the first connector 604 and the second connector 605 is achieved through the engagement of the seventh internal thread 608 and the seventh external thread 607. The second connector 605 has an eighth internal thread 609 on its bottom inner wall, and the air nozzle 603 has an eighth external thread 610 on its top outer edge. The connection between the second connector 605 and the air nozzle 603 is achieved through the engagement of the eighth internal thread 609 and the eighth external thread 610. The second connector 605 has a contact surface 611 on its bottom outer wall, and the air nozzle 603 also has a contact surface 611 on its top inner wall. When the air nozzle 603 is connected to the second connector 605, the contact surface 611 of the air nozzle 603 abuts against the contact surface 611 of the second connector 605 to prevent adhesive overflow.

[0055] Example 2:

[0056] The workflow is as follows:

[0057] The cylinder assembly 203 starts to work, the piston rod of the cylinder assembly 203 moves downward, and the piston rod of the cylinder assembly 203 pushes the air pipe piston 201 of the air pipe mechanism 2 to move downward.

[0058] Driven by the piston rod of the cylinder assembly 203, the air pipe piston 201 moves downward inside the air pipe housing 202, which compresses the gas inside the air pipe mechanism 2. The air pressure inside the air pipe mechanism 2 is greater than the air pressure outside the air pipe mechanism 2. The air pressure pushes the glue inside the air pipe mechanism 2 to flow out through the first glue outlet channel 205.

[0059] The adhesive in the air tube mechanism 2 flows into the second adhesive outlet channel 404 of the buffer mechanism 4 through the first adhesive outlet channel 205, and then flows into the adhesive inlet mechanism 5 through the second adhesive outlet channel 404 of the buffer mechanism 4. The adhesive in the adhesive inlet mechanism 5 flows into the fifth adhesive outlet channel 306 of the screw adhesive outlet mechanism 3 through the fourth adhesive outlet channel 501. At the same time, the output shaft of the motor assembly 303 rotates, thereby driving the screw body 302 of the screw adhesive outlet mechanism 3 to rotate. After the screw body 302 rotates, it drives the adhesive in the fifth adhesive outlet channel 306 to flow to the air nozzle mechanism 6 through the adhesive outlet thread 305. Among them, by controlling the number of rotations and speed of the screw body 302 to determine the amount of adhesive dispensed, a high dispensing accuracy can be obtained.

[0060] The adhesive from the air nozzle mechanism 6 flows to the air nozzle 603 through the sixth adhesive outlet channel 601, and finally the adhesive is dispensed onto the position to be dispensed through the air nozzle 603, thus performing the dispensing operation.

[0061] When the piston rod of the cylinder assembly 203 drives the air pipe piston 201 downward, the pressure generated by the air pipe piston 201 within the air pipe mechanism 2 is transmitted to the air pipe housing 202 of the air pipe mechanism 2, resulting in a downward thrust. This generates an overturning moment on the support frame 101 on the frame 1, causing the support 103 to deform. Consequently, the air pipe mechanism 2 undergoes a downward deformation. Due to the presence of the buffer mechanism 4, this deformation causes the buffer piston 401 to move relative to the buffer housing 402, thus relatively offsetting the deformation of the air pipe mechanism 2. This prevents significant deformation of the mechanism below the buffer housing 402, ensuring that the screw dispensing mechanism 3 is not affected. Therefore, this solves the problem in the prior art where the deformation of the air pipe mechanism 2 causes damage to the rigid connection between the air pipe mechanism 2 and the screw dispensing mechanism 3, greatly reducing the failure rate of the dispensing machine, reducing maintenance frequency, and extending the lifespan of the screw dispensing mechanism 3. This improves operational efficiency and reduces enterprise costs.

[0062] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A glue dispenser, characterized in that: The application relates to a machine frame (1) provided with a gas pipe mechanism (2) and a screw glue discharging mechanism (3), the gas pipe mechanism (2) and the screw glue discharging mechanism (3) are sequentially connected with a buffer mechanism (4) and a glue feeding mechanism (5), the buffer mechanism (4) comprises a buffer piston (401) and a buffer shell (402), the buffer piston (401) is slidably connected in the buffer shell (402), the buffer piston (401) is connected with the gas pipe mechanism (2), and the buffer shell (402) is connected with the glue feeding mechanism (5); the gas pipe mechanism (2) comprises a gas pipe shell (202), the buffer piston (401) comprises a buffer connecting part (405) and a buffer piston body (406) connected with each other; the buffer shell (402) comprises a buffer upper shell (411) and a buffer lower shell (412); the top of the buffer connecting part (405) is fixedly connected with the bottom of the gas pipe shell (202); the buffer piston body (406) is slidably connected in the buffer upper shell (411); the buffer lower shell (412) connects the buffer shell (402) with the glue feeding mechanism (5); a limiting groove (409) is arranged on the outer edge of the buffer piston body (406) in the vertical direction, a limiting screw (410) is connected on the buffer shell (402), and the limiting screw (410) is slidably connected in the limiting groove (409).

2. The machine of claim 1, wherein: The gas pipe mechanism (2) comprises a gas pipe piston (201) slidably connected in the gas pipe shell (202), and a piston rod of a cylinder assembly (203) is connected on the gas pipe piston (201).

3. The machine of claim 1, wherein: A supporting frame (101) is arranged on the machine frame (1), a stepped hole (102) is arranged on the supporting frame (101), a supporting piece (103) is detachably connected in the stepped hole (102), a mounting hole (104) is arranged in the middle of the supporting piece (103), a mounting part (204) is arranged at the bottom of the gas pipe mechanism (2), and the mounting part (204) is mounted in the mounting hole (104).

4. The machine of claim 1, wherein: A first glue discharging flow channel (205) is arranged at the bottom of the gas pipe mechanism (2), a first internal thread (206) is arranged on the inner wall of the first glue discharging flow channel (205), a first external thread (403) is arranged on the top of the buffer piston (401), the first internal thread (206) is connected with the first external thread (403), a second glue discharging flow channel (404) is arranged in the buffer piston (401), and the first glue discharging flow channel (205) is connected with the second glue discharging flow channel (404).

5. The machine of claim 4, wherein: The first external thread (403) is arranged at the top of the buffer connecting part (405), and the outer wall of the buffer piston body (406) is provided with at least one sealing installation groove (407), and a sealing ring (408) is arranged in the sealing installation groove (407), and the sealing ring (408) is arranged between the buffer piston body (406) and the buffer shell (402) to realize the sealing between the buffer piston body (406) and the buffer shell (402).

6. The machine of claim 4, wherein: The bottom outer edge of the buffer upper shell (411) is provided with a second external thread (413), the top inner wall of the buffer lower shell (412) is provided with a second internal thread (414), the second external thread (413) is connected with the second internal thread (414), and the inside of the buffer shell (402) is provided with a third glue outlet flow channel (415) which is communicated with the second glue outlet flow channel (404).

7. The machine of claim 6, wherein: The inside of the glue inlet mechanism (5) is provided with a fourth glue outlet flow channel (501) which is in the shape of a rectangle in cross section, and the fourth glue outlet flow channel (501) is communicated with the third glue outlet flow channel (415).

8. The machine of claim 7, wherein: The screw glue outlet mechanism (3) comprises a screw shell (301) and a screw body (302), the screw body (302) is rotatably connected in the screw shell (301), the screw body (302) is connected with a motor assembly (303), the screw shell (301) is provided with a glue outlet cavity (304), the screw body (302) is provided with a glue outlet thread (305), the glue outlet cavity (304) and the glue outlet thread (305) form a fifth glue outlet flow channel (306), and the fifth glue outlet flow channel (306) is communicated with the fourth glue outlet flow channel (501).

9. The machine of claim 8, wherein: The bottom of the screw glue outlet mechanism (3) is connected with an air nozzle mechanism (6), the air nozzle mechanism (6) is detachably connected with the screw glue outlet mechanism (3), the air nozzle mechanism (6) is provided with a sixth glue outlet flow channel (601), and the fifth glue outlet flow channel (306) is communicated with the sixth glue outlet flow channel (601).

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