Quantitative gluing device

Abstract

The utility model discloses a quantitative gluing device which comprises a driving assembly, a stock bin, a discharging assembly and a stop valve with a flow channel, the driving assembly, the stock bin and the discharging assembly are sequentially communicated in the first direction, and the driving assembly comprises a first driving piece, a planetary structure and a piston rod structure. One end of the piston rod structure extends into the stock bin, the first driving piece is connected with the other end of the piston rod through the planetary structure so as to drive the piston rod to reciprocate in the stock bin, and the stop valve is communicated with the end, close to the piston rod, of the stock bin. And a first included angle is formed between the runner of the stop valve and the stock bin. According to the utility model, materials can flow to the rear end of the stock bin along the runner after entering from the side surface, so that the first-in first-out purpose is realized, the newly added materials are ensured to be used every time, and the deterioration risk caused by long-time storage is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to gluing equipment technical field, especially a kind of quantitative gluing device. BACKGROUND

[0002] Automobile industry uses artificial hand-held glue gun to glue workpiece in gluing process, and glueing amount needs to be mastered by worker's proficiency glue output and speed, and it is difficult to achieve precision, and the quality of product cannot achieve consistency, and gear quantitative pump and screw quantitative pump are unstable, and existing quantitative pump uses advanced output, and old glue cannot be knocked out, and long-term may make old glue metamorphosed and caked in cylinder. INVENTION CONTENTS

[0003] The utility model solves the technical problems that existing quantitative pump uses advanced output, and old glue cannot be knocked out, and long-term may make old glue metamorphosed and caked in cylinder.

[0004] In order to solve the above technical problems, the utility model provides a quantitative gluing device, which comprises a driving assembly, a stock bin, a discharging assembly and a stop valve with a flow channel, the driving assembly, the stock bin and the discharging assembly are sequentially communicated along a first direction, the driving assembly comprises a first driving part, a planetary structure and a piston rod structure, one end of the piston rod structure extends into the stock bin, and the first driving part is connected with the other end of the piston rod through the planetary structure to drive the piston rod to reciprocate in the stock bin, the stop valve is communicated with one end of the stock bin close to the piston rod, and the flow channel of the stop valve has a first included angle with the stock bin.

[0005] In some embodiments, the stop valve comprises a valve body, a valve needle and a driving structure, the valve body has a flow channel communicated with the stock bin and a feeding channel communicated with the flow channel, the flow channel and the feeding channel have a second included angle, one end of the valve needle extends into the flow channel, the driving structure is arranged at one end of the valve body away from the flow channel outlet, and the driving structure is connected with the other end of the valve needle to drive the valve body to reciprocate in the flow channel.

[0006] In some embodiments, the feeding channel is vertically arranged with the first direction.

[0007] In some embodiments, the driving structure comprises a cylinder, an end cover, a valve core, a wave spring and a connecting end, the cylinder is connected with the end cover to form an installation cavity, the valve core is movably arranged in the installation cavity to form a pneumatic cavity with the cylinder and the end cover, one end of the valve needle is connected with the valve core through the cylinder, the wave spring is arranged in the pneumatic cavity, and the two ends of the wave spring are respectively in abutment with the inner wall of the end cover and the outer wall of the valve core, the connecting end is installed on the end cover and communicates with the pneumatic cavity.

[0008] In some embodiments, the driving assembly further comprises a speed reducer and a shaft coupling, the first driving member is connected with the speed reducer, and the speed reducer is connected with the planetary structure through the shaft coupling.

[0009] In some embodiments, the planetary structure comprises a planetary ball screw, a bearing seat, a planetary nut, a nut seat and a plurality of connecting rods, the output shaft of the speed reducer is connected with the planetary ball screw through the shaft coupling, the plurality of connecting rods are installed on the bearing seat and are arranged at intervals around the axis of the planetary ball screw, the nut seat is movably connected with the connecting rods, the planetary nut is installed on the nut seat, and the planetary nut is sleeved on the side of the planetary ball screw, and the other end of the piston rod structure is sleeved on the end of the planetary ball screw away from the first driving member and is connected with the planetary nut.

[0010] In some embodiments, the installation housing and the angular contact ball bearing are further included, the installation housing comprises a connecting seat, an outer shell and a mounting seat, the connecting seat, the bearing seat, the outer shell, the mounting seat and the hopper are sequentially connected, the shaft coupling is installed on the connecting seat, the angular contact ball bearing is installed in the bearing seat and connected with the planetary ball screw.

[0011] In some embodiments, the seal and the leakage observation tube for observing whether there is leakage between the mounting seat and the hopper are further included, the seal is installed between the mounting seat and the hopper, and the leakage observation tube is installed on the mounting seat.

[0012] In some embodiments, the piston rod structure is made of alloy steel, and a wear-resistant layer formed by DLC coating process is provided on the outside of the piston rod structure.

[0013] In some embodiments, the position sensor for detecting the motion position of the piston rod structure, the heating device, the temperature control sensor for detecting the glue output temperature and the pressure sensor for detecting the pressure of the discharge head of the discharge assembly are further included, the heating device and the temperature control sensor are installed on the discharge assembly, and the pressure sensor is installed on the discharge head of the discharge assembly.

[0014] Compared with the prior art, the quantitative gluing device provided by the embodiment of the utility model has the beneficial effects that:

[0015] The embodiment of the utility model can make the material enter from the side, flow along the flow channel to the rear end of the bin, realize the purpose of first-in first-out, ensure that the material used each time is the latest added material, and reduce the deterioration risk caused by long-term storage. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the structure schematic view of quantitative gluing device provided by the embodiment of the utility model;

[0017] Figure 2 is the sectional view along A-A direction of the embodiment of the utility model provided; Figure 1

[0018] Figure 3 is the structure schematic view of stop valve provided by the embodiment of the utility model;

[0019] Figure 4 is the sectional view along B-B direction of the embodiment of the utility model provided; Figure 3

[0020] Figure 5 is the structure schematic view of planetary structure provided by the embodiment of the utility model;

[0021] Figure 6 is the structure schematic view of planetary nut and piston rod structure provided by the embodiment of the utility model;

[0022] Figure 7 is the partial enlarged view of A part shown in the embodiment of the utility model; Figure 1

[0023] In the figure, 1, drive assembly;11, first driving part;12, planetary structure;121, planetary ball screw;122, bearing seat;123, planetary nut;124, nut seat;125, connecting rod;13, piston rod structure;14, speed reducer;15, shaft coupling;2, bin;3, discharge assembly;4, stop valve;41, flow channel;42, valve body;421, feeding channel;43, valve needle;44, driving structure;441, cylinder body;442, end cover;443, valve core;444, wave spring;445, mounting cavity;446, pneumatic cavity;5, mounting shell;51, connecting seat;52, shell;53, mounting seat;6, angular contact ball bearing;7, universal seal;8, leakage observation tube;9, position sensor. DETAILED DESCRIPTION

[0024] ​​​The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0025] As shown in Figures 1 to 4 The present application provides a kind of quantitative glue spreading device, including drive assembly 1, bunker 2, discharging assembly 3 and the stop valve 4 with flow channel 41, drive assembly 1, bunker 2 and discharging assembly 3 are sequentially communicated along the first direction, drive assembly 1 includes first driving part 11, planetary structure 12 and piston rod structure 13, one end of piston rod structure 13 extends into bunker 2, and first driving part 11 is connected with the other end of piston rod by planetary structure 12, to drive piston rod reciprocating motion in bunker 2, when piston rod moves, it can compress or release the space in bunker 2, to control the feed quantity of material in turn, stop valve 4 is communicated with the end of bunker 2 close to piston rod, and stop valve 4 has first included angle between flow channel 41 and bunker 2, so that fluid is easier to travel along the predetermined route, reduce the possibility of blockage.

[0026] Based on the above structure, the present embodiment can make the material enter from the side along flow channel 41 to the rear end of bunker 2, realize the purpose of first-in first-out, ensure that the material used each time is the latest added material, and reduce the risk of deterioration caused by long-term storage.

[0027] It should be noted that the first direction of the present embodiment is the length direction of the quantitative glue spreading device.

[0028] As shown in Figure 4 Stop valve 4 includes valve body 42, valve needle 43 and drive structure 44, valve body 42 has flow channel 41 communicated with bunker 2 and feed channel 421 communicated with flow channel 41, flow channel 41 and feed channel 421 have second included angle, valve needle 43 extends into flow channel 41 at one end, drive structure 44 is arranged at the end of valve body 42 away from the outlet of flow channel 41, and drive structure 44 is connected with the other end of valve needle 43 to drive valve body 42 reciprocating motion in flow channel 41.

[0029] Based on the above structure, the reciprocating motion of valve needle 43 in flow channel 41 is controlled by drive structure 44, when valve needle 43 is in closed position, it can prevent material from entering flow channel 41 from feed channel 421 or flowing out of flow channel 41. When valve needle 43 is driven to open, it allows material to pass. The present embodiment can adjust the speed and quantity of material entering flow channel 41 by controlling the position of valve needle 43, cooperate with first driving part 11 to control the motion of piston rod structure 13, so as to realize fine management of glue spreading process. In addition, due to the adoption of inclined design (second included angle), the newly added material will push the old material forward along the slope, realize the principle of "first-in first-out", and reduce the risk of material deterioration.

[0030] In some embodiments, the feeding channel 421 is arranged perpendicularly to the first direction, so that the material can flow smoothly along the inclined side feeding channel 41 when entering at a perpendicular angle, instead of piling up in a corner. This helps to maintain the freshness and flowability of the material.

[0031] In some embodiments, the driving structure 44 includes a cylinder 441, an end cover 442, a valve core 443, a wave spring 444, and a connecting end. The cylinder 441 is connected with the end cover 442 to enclose a mounting cavity 445. The valve core 443 is movably arranged in the mounting cavity 445 to enclose a pneumatic cavity 446 with the cylinder 441 and the end cover 442. One end of the valve needle 43 is connected with the valve core 443 through the cylinder 441. The wave spring 444 is arranged in the pneumatic cavity 446, and two ends of the wave spring 444 abut against the inner wall of the end cover 442 and the outer wall of the valve core 443, respectively. The connecting end is mounted on the end cover 442 and communicates with the pneumatic cavity 446 to fill or discharge compressed air in the pneumatic cavity 446, thereby controlling the movement of the valve core 443.

[0032] In this embodiment, when the air pressure acts on the valve core 443, it can slide along the mounting cavity 445, thereby pushing or pulling the valve needle 43 to open and close, so as to realize the opening and closing of the flow channel 41. In the pneumatic driving structure 44, the wave spring 444 acts as a reset device. When there is no air pressure, the wave spring 444 pushes the valve core 443 back to the initial position. When the air pressure is applied to the pneumatic cavity 446, the wave spring 444 is compressed to allow the valve core 443 to move, so as to ensure that the valve core 443 can automatically return to the initial state after each operation, and be ready for the next operation.

[0033] In some embodiments, the driving assembly 1 further includes a speed reducer 14 and a coupling 15. The first driving member 11 is connected with the speed reducer 14 to convert the high-speed low-torque motor output into a low-speed high-torque output suitable for actual application requirements, which not only can better control the flow and pressure in the gluing process, but also can protect the mechanical structure from excessive impact force. The speed reducer 14 is connected with the planetary structure 12 through the coupling 15 to reduce the stress concentration caused by installation errors or slight movements during operation, thereby prolonging the service life of the entire transmission system.

[0034] As Figure 2 , Figure 5 and Figure 6As shown, the planetary structure 12 includes a planetary ball screw 121, a bearing seat 122, a planetary nut 123, a nut seat 124, and a plurality of connecting rods 125, the output shaft of the speed reducer 14 is connected with the planetary ball screw 121 through the shaft coupling 15, the plurality of connecting rods 125 are installed on the bearing seat 122 and are arranged at intervals around the axis of the planetary ball screw 121, the nut seat 124 is movably connected with the connecting rods 125, the planetary nut 123 is installed on the nut seat 124, and the planetary nut 123 is sleeved on the side of the planetary ball screw 121, and the other end of the piston rod structure 13 is sleeved on the end of the planetary ball screw 121 away from the first driving member 11 and is connected with the planetary nut 123.

[0035] Based on the above structure, when the planetary ball screw 121 rotates, the planetary nut 123 moves in the axial direction, and the ball is used instead of sliding friction, the planetary nut 123 provides higher positioning accuracy and repeatability, and with the linear motion of the planetary nut 123, the piston rod structure 13 also reciprocates in the bunker 2, thereby controlling the extrusion amount of the material, and realizing precise control of the glue application amount. The first driving member 11 of the embodiment is a servo motor, which can be perfectly combined with the precise transmission of the planetary ball screw, and the precise glue application can be accurate to an error of about 0.05 grams each time, and the opening and closing of the valve reflecting the speed of the pneumatic control driving structure 44 is 0.3 seconds. The above is to ensure the stability of the glue application, and the large torque of the planetary ball screw can make the pressure reach 40Mpa, which is suitable for various occasions of plane, side and back glue application, and can stably and continuously maintain the quality and working efficiency of the glue application. If combined with a robot, complete automation can be realized. The device is compact and light, the glue output is accurate, the high and low pressure is adjustable, and the glue application all-in-one machine is temperature-controllable.

[0036] In some embodiments, a mounting shell 5 and a radial spherical bearing 6 are further included, the mounting shell 5 includes a connecting seat 51, an outer shell 52, and a mounting seat 53, the connecting seat 51, the bearing seat 122, the outer shell 52, the mounting seat 53, and the bunker 2 are sequentially connected, the shaft coupling 15 is installed on the connecting seat 51, the radial spherical bearing 6 is installed in the bearing seat 122, and the radial spherical bearing 6 is connected with the planetary ball screw 121.

[0037] The mounting shell 5 (including the connecting seat 51, the outer shell 52, and the mounting seat 53) provides a solid frame for the entire driving assembly 1, ensures that all components are correctly aligned and firmly installed, and in addition, the use of the radial spherical bearing 6 reduces friction when the planetary ball screw 121 rotates, improves transmission efficiency, reduces energy loss, and helps to maintain the linear motion accuracy of the planetary ball screw 121.

[0038] As Figure 7As shown, it also includes a pan seal 7 installed between the mounting seat 53 and the hopper 2 to prevent the material in the hopper 2 from leaking out from the gap between the piston rod and the mounting seat 53. It ensures the sealing of the system, prevents external impurities from entering the internal material, and also prevents the internal material from leaking out, ensuring the cleanliness of the operating environment. The pan seal 7 is made of PEEK (Polyether Ether Ketone) material and adopts a double corrosion-resistant spring structure, which has better sealing performance, wear resistance, and high-temperature resistance than the conventional U-ring structure, and can work at 250°C for a long time without reducing the performance. The leakage observation tube 8 is installed on the mounting seat 53 to provide a visual means to detect the sealing condition between the mounting seat 53 and the hopper 2. If the pan seal 7 fails or for other reasons causes material leakage, the leakage will flow into the leakage observation tube 8, so that the operator can find it in time. This helps to take measures to repair or replace the seal in advance to avoid production interruption or material waste caused by leakage.

[0039] In some embodiments, the piston rod structure 13 is made of alloy steel to ensure that it has sufficient strength and rigidity to withstand high-pressure reciprocating motion and possible impact load, and the outer side of the piston rod structure 13 is provided with a wear-resistant layer formed by a DLC coating process to provide higher wear resistance and corrosion resistance, which can prolong the service life of the piston rod and reduce the maintenance requirements due to wear.

[0040] In some embodiments, it also includes a position sensor 9 for detecting the movement position of the piston rod structure 13, a heating device, a temperature control sensor for detecting the temperature of the glue, and a pressure sensor for detecting the pressure of the discharge head of the discharge assembly 3. The heating device and the temperature control sensor are installed on the discharge assembly 3, and the pressure sensor is installed on the discharge head of the discharge assembly 3.

[0041] This embodiment monitors the position of the piston rod structure 13 in real time through the position sensor 9 to accurately control the glue output, and uses the heating device to keep the glue within the appropriate temperature range to ensure its flowability and viscosity meet the process requirements. In addition, the temperature of the glue is monitored in real time by the temperature control sensor, and the data is fed back to the control system to ensure that the heating device adjusts according to the set temperature, thereby maintaining the optimal working state of the glue. This embodiment also provides a pressure sensor for monitoring the pressure of the discharge head to control the glue output speed and uniformity.

[0042] First, the stop valve 4 is opened, start glue injection, while the piston rod structure 13 retreats to the original position, in the process of retreating to the original position, the fluid has been filled with the hopper 2, while the stop valve 4 is closed, the servo motor starts to work planetary roller screw driven piston rod structure 13 forward to start glue, when the piston rod structure 13 forward to a certain position after position sensor 9 signal, the piston rod mechanism retreats, and the stop valve 4 is opened to start glue injection, a working cycle is completed.

[0043] To sum up, the utility model discloses a kind of quantitative glue coating devices, it can make material enter from side, then flow to the rear end of hopper 2 along flow channel 41, realize first-in first-out purpose, ensure that it is the newest material added each time, reduce the metamorphic risk caused by long-time storage.

[0044] The above is only preferred embodiment of the utility model, it should be pointed out, for ordinary skilled person in the prior art, without departing from the technical principle of the utility model, can make several improvements and substitutions, these improvements and substitutions also should be considered as the protection scope of the utility model.

Claims

1. A quantitative glue coating device, characterized in that: It includes a drive assembly, a silo, a discharge assembly and a stop valve with a flow channel, the drive assembly, the silo and the discharge assembly are connected in sequence along a first direction, the drive assembly includes a first drive member, a planetary structure and a piston rod structure, one end of the piston rod structure extends into the silo, and the first drive member is connected to the other end of the piston rod through the planetary structure to drive the piston rod to reciprocate in the silo, the stop valve is connected to one end of the silo close to the piston rod, and a first angle is formed between the flow channel of the stop valve and the silo.

2. The quantitative glue coating device according to claim 1, characterized in that: The stop valve includes a valve body, a valve needle and a driving structure. The valve body has a flow channel connected to the material bin and a feed channel connected to the flow channel. There is a second angle between the flow channel and the feed channel. One end of the valve needle extends into the flow channel. The driving structure is arranged at the end of the valve body away from the flow channel outlet, and the driving structure is connected to the other end of the valve needle to drive the valve body to reciprocate in the flow channel.

3. The quantitative glue coating device according to claim 2, characterized in that: The feed channel is arranged perpendicular to the first direction.

4. The quantitative glue coating device according to claim 2, characterized in that: The driving structure includes a cylinder body, an end cover, a valve core, a wave spring and a connecting end. The cylinder body is connected to the end cover to enclose a mounting cavity. The valve core is movably arranged in the mounting cavity to enclose a pneumatic cavity with the cylinder body and the end cover to form a pneumatic cavity. One end of the valve needle passes through the cylinder body and is connected to the valve core. The wave spring is arranged in the pneumatic cavity, and the two ends of the wave spring are respectively in contact with the inner wall of the end cover and the outer wall of the valve core. The connecting end is installed on the end cover and communicated with the pneumatic cavity.

5. The quantitative glue coating device according to claim 1, characterized in that: The driving assembly further includes a reducer and a coupling. The first driving member is connected to the reducer, and the reducer is connected to the planetary structure through the coupling.

6. The quantitative glue coating device according to claim 5, characterized in that: The planetary structure includes a planetary ball screw, a bearing seat, a planetary nut, a nut seat and multiple connecting rods. The output shaft of the reducer is connected to the planetary ball screw through the coupling. The multiple connecting rods are installed on the bearing seat and are arranged at intervals around the axis of the planetary ball screw. The nut seat is movably connected to the connecting rod. The planetary nut is installed on the nut seat, and the planetary nut is sleeved on the circumferential side of the planetary ball screw. The other end of the piston rod structure is sleeved on the end of the planetary ball screw away from the first driving member and is connected to the planetary nut.

7. The quantitative glue coating device according to claim 6, characterized in that: It also includes a mounting shell and a radial ball bearing, the mounting shell includes a connecting seat, an outer shell and a mounting seat, the connecting seat, the bearing seat, the outer shell, the mounting seat and the silo are connected in sequence, the coupling is installed on the connecting seat, the radial ball bearing is installed in the bearing seat, and the radial ball bearing is connected to the planetary ball screw.

8. The quantitative glue coating device according to claim 7, characterized in that: It also includes a pan seal and a leakage observation tube for observing whether there is leakage between the mounting seat and the silo. The pan seal is installed between the mounting seat and the silo, and the leakage observation tube is installed on the mounting seat.

9. The quantitative glue coating device according to claim 1, characterized in that: The piston rod structure is made of alloy steel, and a wear-resistant layer formed by external plating using a DLC coating process is provided on the outer side of the piston rod structure.

10. The quantitative glue coating device according to claim 1, characterized in that: It also includes a position sensor for detecting the moving position of the piston rod structure, a heating device, a temperature control sensor for detecting the glue discharge temperature, and a pressure sensor for detecting the discharge head pressure of the discharge component. The heating device and the temperature control sensor are installed on the discharge component, and the pressure sensor is installed on the discharge head of the discharge component.

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