Quantitative gluing equipment

Abstract

The invention discloses quantitative gluing equipment which comprises a motor driving mechanism, a driving movement mechanism, a piston rod, a cylinder body piston, a filling cylinder body and a glue injection valve, the motor driving mechanism is connected with the driving movement mechanism; the driving movement mechanism is fixedly connected with one end of the piston rod; the other end of the piston rod penetrates into the filler cylinder body from one end of the filler cylinder body and is fixedly connected with the cylinder body piston; the cylinder body piston is positioned in the filler cylinder body; glue injection channels are formed in the piston rod and the cylinder body piston; the other end of the filler cylinder body is fixedly connected with a mounting block, and a glue outlet communicated with the interior of the filler cylinder body is formed in the mounting block. After the sizing material in the filling cylinder body is used up, the first-injected sizing material is located at the position close to the sizing outlet, the first-injected sizing material can be preferentially knocked out to form a first-in first-out structure, and the first-entering sizing material cannot be accumulated at the piston part for a long time, so that the sizing material can be prevented from being dried and hardened to block the piston, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of glue spraying equipment, and in particular to a quantitative glue spraying equipment and a circuit breaker structure. Background Art

[0002] During the production of automobiles and new energy batteries, a variety of glue coating and glue spraying work is required. The coating glue supply device is mainly used for glue coating and glue spraying. It provides glue supply and quantitative spraying for automobile spraying. It can be used for spraying on parts such as UBC / UBS / ISS / LASD of automobile chassis, and can also be used for spraying glass glue on automobile glass. New energy batteries are mainly used to apply structural glue, thermal conductive glue, etc. on battery cells or bottom plates; the current common coating glue supply device detects glue pressure and flowmeter monitors flow through pressure sensors, and the closed-loop feedback voltage regulator adjusts the glue supply to achieve quantitative spraying. The coating glue supply device usually needs to pre-inject a certain amount of glue before spraying. When injecting glue into the coating glue supply device, it is injected into the cylinder from the bottom of the cylinder body, and the glue outlet for spraying is also at the bottom of the cylinder body. The first injected glue is pushed to the inside away from the glue outlet. When discharging glue, the glue that enters later is first ejected, resulting in the first injected glue accumulating in the piston for a long time, which is prone to dryness and blockage. Summary of the invention

[0003] In order to solve the above problems existing in the prior art, the present invention provides a quantitative glue coating device and a circuit breaker structure. The technical problem to be solved by the present invention is achieved through the following technical solutions:

[0004] A first aspect of an embodiment of the present invention provides a quantitative glue coating device, comprising: a motor drive mechanism, a drive motion mechanism, a piston rod, a cylinder piston, a filling cylinder and a glue injection valve;

[0005] The motor drive mechanism is connected to the drive motion mechanism;

[0006] The driving mechanism is fixedly connected to one end of the piston rod, and is driven by the motor driving mechanism to push or pull the piston rod to move, so as to realize the movement of the cylinder piston in the filling cylinder;

[0007] The other end of the piston rod penetrates into the filling cylinder from one end of the filling cylinder and is fixedly connected to the cylinder piston;

[0008] The cylinder piston is located in the packing cylinder and forms a seal with the packing cylinder;

[0009] The piston rod and the cylinder piston are provided with a glue injection channel;

[0010] The glue injection channel has one end located on the piston rod and connected to the glue injection valve, and the other end passes through the piston rod and extends to the end of the cylinder piston and connected to the filling cylinder;

[0011] The other end of the filling cylinder is fixedly connected with a mounting block, the mounting block is provided with a glue outlet communicated with the interior of the filling cylinder, and the filling cylinder is fixedly connected with the fixing part of the motor drive mechanism.

[0012] In one embodiment of the present invention, the driving motion mechanism comprises: a connecting shaft and a planetary roller screw;

[0013] The speed reduction output shaft of the motor drive mechanism is fixedly connected to one end of the connecting shaft;

[0014] The connecting shaft is connected to the planetary roller screw, and the planetary roller screw is fixedly connected to one end of the piston rod.

[0015] In one embodiment of the present invention, it further comprises a housing;

[0016] The housing has one end fixedly connected to the fixing portion of the motor drive mechanism and the other end fixedly connected to the filling cylinder;

[0017] The connecting shaft, the planetary roller screw and the piston rod are located in the housing;

[0018] The other end of the connecting shaft is fixedly connected to one end of the roller nut of the planetary roller screw;

[0019] The main screw of the planetary roller screw is fixedly connected to one end of the piston rod through a connecting seat;

[0020] The main screw, one end of which is away from the connecting shaft, is fixedly connected to the connecting seat;

[0021] The connecting seat is fixedly connected to one end of the piston rod and slidably connected to the housing to move linearly along the axial direction;

[0022] The glue outlet portion of the glue injection valve is communicated with one end of the glue injection channel through a sliding window extending along the axial direction and provided on the shell.

[0023] In one embodiment of the present invention, a first bearing is sleeved on the connecting shaft; and a second bearing is sleeved on the roller nut.

[0024] In one embodiment of the present invention, the housing comprises: a protective cover, a bearing seat, a mounting shell, a main shell and a mounting seat;

[0025] The protective cover has one end fixedly connected to the fixing portion of the motor drive mechanism and the other end fixedly connected to one end of the bearing seat;

[0026] The first bearing is arranged inside the bearing seat, the other end of the bearing seat is fixedly connected to one end of the mounting shell, the second bearing is arranged inside the mounting shell, the other end of the mounting shell is fixedly connected to one end of the main shell, the other end of the main shell is fixedly connected to the mounting seat, and the mounting seat is fixedly connected to the packing cylinder;

[0027] The connecting seat is slidably connected to the mounting seat.

[0028] In one embodiment of the present invention, at least two guide rods extending in the axial direction are fixedly arranged on the mounting seat;

[0029] The connecting seat is slidably connected to the mounting seat via the guide rod;

[0030] The guide rod penetrates into the connection seat and is in sliding contact with the connection seat.

[0031] In one embodiment of the present invention, an in-position proximity switch is provided inside the main housing at a position close to the roller nut.

[0032] In one embodiment of the present invention, a heating hood is provided on the outer wall of the filler cylinder;

[0033] The heating cover is fixedly connected to the mounting seat, and a heating rod is arranged on the heating cover.

[0034] In one embodiment of the present invention, the connecting shaft has a first connecting through hole and a second connecting through hole extending in the axial direction and penetrating therein;

[0035] The first connecting through hole and the second connecting through hole are coaxial;

[0036] The first connecting through hole is fixedly connected to the reduction output shaft of the motor drive mechanism;

[0037] The main screw portion passes through the other end of the connecting shaft and is inserted into the second connecting through hole.

[0038] In one embodiment of the present invention, a pressure sensor is provided on one side of the glue outlet.

[0039] Beneficial effects of the present invention:

[0040] The present invention injects rubber into the filling cylinder through the rubber injection channel of the piston rod and the cylinder piston. After the rubber in the filling cylinder is used up, the cylinder piston is pushed to the end of the filling cylinder close to the rubber outlet, at which time the rubber is injected. At the same time, the cylinder piston moves, and the rubber injected first is located near the rubber outlet, and the rubber injected later is accumulated inwardly and away from the rubber outlet in sequence as the piston moves. Therefore, when spraying the rubber, the cylinder piston pushes the movement, and the rubber injected first can be sprayed out first, forming a first-in-first-out structure. The rubber that enters first will not accumulate on the piston for a long time, thereby preventing the rubber from drying and clogging the piston, thereby extending the service life of the equipment.

[0041] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings.

[0042] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0044] Figure 1 A schematic structural diagram of a quantitative glue coating device provided by an embodiment of the present invention;

[0045] Figure 2 A schematic diagram of the external structure of a quantitative glue coating device provided by an embodiment of the present invention;

[0046] Figure 3 A schematic cross-sectional structure diagram of a quantitative glue coating device provided by an embodiment of the present invention;

[0047] Figure 4 A schematic diagram of the structure of a connecting shaft provided in an embodiment of the present invention;

[0048] Figure 5 A schematic diagram of the structure of the installation housing provided in an embodiment of the present invention;

[0049] Figure 6 The three-dimensional structure of the installation housing provided by the embodiment of the present invention;

[0050] Figure 7 A schematic diagram of the structure of a connecting socket provided in an embodiment of the present invention;

[0051] Figure 8 A schematic diagram of the cooperation between the connecting seat and the main screw provided in an embodiment of the present invention.

[0052] Description of reference numerals:

[0053] 10-motor drive mechanism; 11-servo motor; 12-reducer; 20-drive motion mechanism; 21-connecting shaft; 22-roller nut; 23-main screw; 24-connecting seat; 25-planetary roller screw; 26-first connecting through hole; 27-second connecting through hole; 30-piston rod; 31-glue injection channel; 32-seat body; 33-round groove; 34-keyway; 40-cylinder piston; 50-filling cylinder; 60-glue injection valve; 61-glue outlet; 70-mounting block; 71-glue outlet; 72-first A bearing; 73-a second bearing; 74-a first step hole structure; 80-an outer shell; 81-a sliding window; 82-a protective cover; 83-a bearing seat; 84-a mounting shell; 85-a main shell; 86-a mounting seat; 87-an in-place proximity switch; 88-a pull-back limit proximity switch; 89-an push-out limit proximity switch; 90-a guide rod; 91-a locking nut; 92-an oil seal; 93-an anti-collision pad; 94-a first sealing ring; 95-a second sealing ring; 96-a heating cover; 97-a heating rod; 98-a pressure sensor. DETAILED DESCRIPTION

[0054] The present invention is further described in detail below with reference to specific embodiments, but the embodiments of the present invention are not limited thereto.

[0055] like Figure 1 As shown, an embodiment of the present invention provides a quantitative glue coating device, including: a motor drive mechanism 10, a drive movement mechanism 20, a piston rod 30, a cylinder piston 40, a filling cylinder 50 and a glue injection valve 60.

[0056] The motor drive mechanism 10 is connected to the drive movement mechanism 20; the drive movement mechanism 20 is fixedly connected to one end of the piston rod 30. The drive movement mechanism 20 pushes or pulls the piston rod 30 to move under the drive of the motor drive mechanism 10, so as to realize the movement of the cylinder piston 40 in the packing cylinder 50. The other end of the piston rod 30 penetrates into the packing cylinder 50 from one end of the packing cylinder 50 and is fixedly connected to the cylinder piston 40; the cylinder piston 40 is located in the packing cylinder 50, and the cylinder piston 40 and the packing cylinder 50 form a seal.

[0057] A glue injection channel 31 is provided inside the piston rod 30 and the cylinder piston 40; one end of the glue injection channel 31 is located on the piston rod 30 and communicates with the glue injection valve 60, and the other end of the glue injection channel 31 passes through the piston rod 30 and extends to the end of the cylinder piston 40 and communicates with the packing cylinder 50. A mounting block 70 is fixedly connected to the other end of the packing cylinder 50, and a glue outlet 71 is provided on the mounting block 70 and communicates with the inside of the packing cylinder 50. The packing cylinder 50 is fixedly connected to the fixed part of the motor drive mechanism 10.

[0058] In this embodiment, after the rubber in the filling cylinder 50 is used up, the cylinder piston 40 is pushed to the end of the filling cylinder 50 near the rubber outlet 71. At this time, the rubber is injected into the filling cylinder 50 through the rubber injection channel 31 of the piston rod 30 and the cylinder piston 40. At the same time, the cylinder piston 40 moves away from the rubber outlet 71. The rubber injected first is located near the rubber outlet 71, and the rubber injected later accumulates away from the rubber outlet 71 in sequence as the cylinder piston 40 moves. Therefore, when spraying the rubber, the cylinder piston 40 pushes the movement, and the rubber injected first can be sprayed out first, forming a first-in first-out structure. The rubber that enters first will not accumulate in the piston for a long time, thereby preventing the rubber from drying and blocking the piston and the rubber outlet 71, thereby extending the service life of the device. When in use, the fixed part of the motor drive mechanism 10 is installed on the mechanical arm of the external multi-axis robot.

[0059] Furthermore, if Figure 1 As shown, the driving motion mechanism 20 includes: a connecting shaft 21 and a planetary roller screw 25. The reduction output shaft of the motor driving mechanism 10 is fixedly connected to one end of the connecting shaft 21; the connecting shaft 21 is connected to the planetary roller screw 25, and the planetary roller screw 25 is fixedly connected to one end of the piston rod 30.

[0060] In this embodiment, the motor drive mechanism 10 includes a servo motor 11 and a reducer 12 (planetary reducer 12), the output shaft of the servo motor 11 is fixedly connected to the input shaft of the reducer 12, and the reduction output shaft of the reducer 12 is fixedly connected to the connecting shaft 21. The planetary roller screw 25 auxiliary mechanism is adopted, which has strong load-bearing capacity, stable operation, low noise during operation, and a stroke accuracy of up to ±0.01mm, which can effectively ensure the quantitative accuracy of the glue output. The axial direction in the above and following embodiments is the axial direction of the output shaft of the servo motor 11, and the planetary roller screw 25, the connecting shaft 21 and the output shaft are coaxially arranged.

[0061] In this embodiment, the servo motor 11 rotates to drive the rotation of the planetary reducer 12, the connecting shaft 21 and the planetary roller screw 25 sub-mechanism, and controls the piston rod 30 and the cylinder piston 40 to move in the filling cylinder 50, so as to achieve accurate discharging and quantitative filling of the rubber. When the rubber needs to be discharged, the servo motor 11 controls the planetary roller screw 25 to rotate at a constant speed through the instructions issued by the servo controller, and the planetary roller screw 25 converts the rotational motion into a linear motion, so as to achieve accurate control of the movement of the cylinder piston 40, and can achieve accurate discharging of the rubber.

[0062] Preferably, if Figure 3As shown, a second sealing ring 95 is sleeved on the cylinder piston 40, and the second sealing ring 95 is sealed with the inner wall of the packing cylinder 50. The inner wall of the packing cylinder 50 is made of tungsten steel, and the second sealing ring 95 is made of high molecular polyethylene material, which can reduce the wear of the inner wall of the cylinder and the sealing ring, and can be used for spraying abrasive rubber.

[0063] Furthermore, if Figure 2 and Figure 3 As shown, a quantitative glue coating device also includes a housing 80; the filling cylinder 50 is fixedly connected to the fixing part of the motor drive mechanism 10 through the housing 80. One end of the housing 80 is fixedly connected to the fixing part of the motor drive mechanism 10, and the other end of the housing 80 is fixedly connected to the filling cylinder 50.

[0064] The connecting shaft 21, the planetary roller screw 25 and the piston rod 30 are located in the housing 80; the other end of the connecting shaft 21 is fixedly connected to one end of the roller nut 22 of the planetary roller screw 25; the main screw 23 of the planetary roller screw 25 is fixedly connected to one end of the piston rod 30 through the connecting seat 24; the main screw 23 and the piston rod 30 are coaxially arranged.

[0065] The end of the main screw 23 away from the connecting shaft 21 is fixedly connected to the connecting seat 24; the connecting seat 24 is fixedly connected to one end of the piston rod 30, and the connecting seat 24 is slidably connected to the housing 80, and the connecting seat 24 can move linearly in the axial direction. Here, the sliding connection with the housing 80 is used to circumferentially limit the main screw 23 and the connecting seat 24, and the main screw 23 and the connecting seat 24 can slide in the axial direction without rotating with the roller nut 22. Therefore, the motor drive mechanism 10 drives the connecting shaft 21 and the roller nut 22 to rotate, thereby driving the main screw 23 to reciprocate in a straight line, so that the connecting seat 24 and the piston rod 30 can reciprocate in a straight line. Therefore, the roller nut 22 will not move linearly, reducing the diameter of the device.

[0066] The glue outlet 61 of the glue injection valve 60 is connected to one end of the glue injection channel 31 through the sliding window 81 extending along the axial direction provided on the housing 80. The housing 80 is provided with a sliding window 81, the long axis of which extends along the axial direction and is parallel to the axial direction of the piston rod 30. The glue injection valve 60 is arranged on the piston rod 30, and moves linearly with the piston rod 30 at the sliding window 81 without interfering with the housing 80. In order to make the glue material first in and first out, it is necessary to add the material at the piston rod 30, so the glue injection valve 60 needs to move with the piston rod 30 without interfering with other components.

[0067] Preferably, if Figure 4As shown, the shaft body of the connecting shaft 21 has a first connecting through hole 26 and a second connecting through hole 27 extending axially and penetrating therethrough; the first connecting through hole 26 and the second connecting through hole 27 are coaxial; one end of the first connecting through hole 26 penetrates one end of the connecting shaft 21, and the first connecting through hole 26 is fixedly connected to the reduction output shaft of the reducer 12. The second connecting through hole 27 penetrates the other end of the connecting shaft 21, and the main screw 23 partially passes through the other end of the connecting shaft 21 and is arranged in the second connecting through hole 27. Here, the main screw 23 is partially located inside the connecting shaft 21, further reducing the axial size of the device. In this embodiment, both the radial size and the axial size of the device are reduced, the volume of the device is reduced, the installation space is saved, and it is easy to install on other robot devices.

[0068] Furthermore, if Figure 2 , Figure 3 As shown, the housing 80 includes a protective cover 82 , a bearing seat 83 , a mounting shell 84 , a main shell 85 and a mounting seat 86 .

[0069] One end of the protective cover 82 is fixedly connected to the fixed part of the reducer 12 of the motor drive mechanism 10, and the other end of the protective cover 82 is fixedly connected to one end of the bearing seat 83. A first bearing 72 is arranged inside the bearing seat 83, and the first bearing 72 is mounted in the bearing seat 83, and the first bearing 72 is sleeved on the connecting shaft 21. The other end of the bearing seat 83 is fixedly connected to one end of the mounting housing 84, and a second bearing 73 is arranged inside the mounting housing 84, and the second bearing 73 is mounted in the mounting housing 84, and the second bearing 73 is sleeved on the roller nut 22. The other end of the mounting housing 84 is fixedly connected to one end of the main housing 85, and the other end of the main housing 85 is fixedly connected to the mounting seat 86, and the mounting seat 86 is fixedly connected to the filling cylinder 50. The connecting seat 24 is slidably connected to the mounting seat 86. In this embodiment, the various parts of the housing 80 can be detachably connected to facilitate maintenance. The sliding window 81 is arranged on the main housing 85.

[0070] Specifically, at least two guide rods 90 extending in the axial direction are fixedly provided on the mounting seat 86; the connecting seat 24 is slidably connected to the mounting seat 86 through the guide rods 90; the guide rods 90 penetrate into the connecting seat 24 and are in sliding contact with the connecting seat 24. The rod axis of the guide rods 90 is parallel to the axial direction, and the guide rods 90 limit the circumferential direction of the connecting seat 24 and the main screw 23, so that when the roller nut 22 of the planetary roller screw 25 rotates, the connecting seat 24 and the main screw 23 can slide linearly in the axial direction on the guide rods 90.

[0071] Preferably, if Figure 3As shown, the locking nut 91 is sleeved at a position close to one end of the connecting shaft 21 and abuts against a bearing cover provided at one end of the bearing seat 83 away from the roller nut 22, so as to fix the outer ring of the first bearing 72 on the bearing seat 83. The first bearing 72 includes an angular contact ball bearing, and the second bearing 73 includes a needle bearing. An oil seal 92 is provided at a position of the first bearing 72 close to the locking nut 91.

[0072] Preferably, one end of the connecting shaft 21 connected to the roller nut 22 is a flange structure, and the flange structure is fixedly connected to the roller nut 22. Figure 3 , Figure 5 , Figure 6 As shown, the interior of the mounting shell 84 has a first step hole structure 74, and the second bearing 73 is pressed on the first step hole structure 74. The other end of the mounting shell 84 also has an extended annular mounting portion, and an anti-collision pad 93 is provided on the annular mounting portion. The anti-collision pad 93 is located between the annular mounting portion and the connecting seat 24, and can buffer the collision force between the connecting seat 24 and the mounting shell 84 after the connection seat 24 moves, thereby avoiding damage to the connecting seat 24 and the mounting shell 84. The main screw 23 passes through the anti-collision pad 93, and at the same time, it can prevent the roller nut 22 from slipping off the main screw 23.

[0073] Preferably, if Figure 7 , Figure 8 As shown, the connecting seat 24 includes a seat body 32, an axial circular groove 33 is provided inside the seat body 32, a key groove 34 is provided on the side wall of the circular groove 33, a threaded through hole is provided on the bottom of the circular groove 33, and a key is provided on the end of the main screw 23 away from the connecting shaft 21. This end is inserted into the circular groove 33 to form a key fit with the circular groove 33. At the same time, this end is fixedly connected to the bottom of the circular groove 33 by bolts, thereby improving the connection reliability between the connecting seat 24 and the main screw 23. In addition, a sliding through hole is provided on the seat body 32, and the guide rod 90 is inserted into the sliding through hole and slides in contact with the sliding through hole. One end of the piston rod 30 is fixedly connected to the end of the seat body 32 facing away from the main screw 23,

[0074] Preferably, if Figure 3As shown, the other end of the piston rod 30 passes through the mounting seat 86 and penetrates into the filling cylinder 50, and the piston rod 30 forms a seal with the mounting seat 86 through the first sealing ring 94. Specifically, the mounting seat 86 includes a seat body and a mounting plate. The mounting plate is fixedly arranged on the end face of the seat body facing the main housing 85, and the end face of the seat body facing the main housing 85 has a second step hole, the first sealing ring 94 is installed on the step of the second step hole, and the mounting plate presses the first sealing ring 94 on the second step hole, and the piston rod 30 passes through the center hole of the mounting plate, the first sealing ring 94 and the second step hole to connect with the cylinder piston 40. One end of the guide rod 90 is fixedly connected to the end face of the mounting plate facing the main housing 85, and the other end of the guide rod 90 extends through the anti-collision pad 93 to be fixedly connected to the annular mounting portion of the mounting housing 84, and the connecting seat 24 slides along the guide rod 90.

[0075] Furthermore, if Figure 3 As shown, an in-position proximity switch 87 is provided at a position near the roller nut 22 inside the main housing 85. Preferably, the in-position proximity switch 87 is close to the anti-collision pad 93. When the connecting seat 24 and the piston rod 30 move to a position close to the anti-collision pad 93, they move to the in-position position, and the in-position proximity switch 87 generates an induction signal, which can control the servo motor 11 to stop rotating. At this time, the stroke is the maximum, and the cylinder piston 40 is located at the top of the filling cylinder 50.

[0076] Preferably, if Figure 3 As shown, a pull-back limit proximity switch 88 and a push-out limit proximity switch 89 are respectively provided on both sides of the in-position proximity switch 87. The pull-back limit proximity switch 88 generates an induction signal when the main screw 23 and the piston rod 30 pull the cylinder piston 40 to a position close to the limit position, and the connecting seat 24 is close to the limit position. The push-out limit proximity switch 89 generates an induction signal when the main screw 23 and the piston rod 30 push the cylinder piston 40 to a position close to the limit movement, and the connecting seat 24 is close to the limit position, so as to control the servo motor 11 to stop immediately when it is close to the limit position to avoid damage to related components.

[0077] Furthermore, if Figure 3 As shown, a heating cover 96 is provided on the outer wall of the filling cylinder 50; the heating cover 96 is fixedly connected to the mounting seat 86, and a heating rod 97 is provided on the heating cover 96. In this embodiment, the device has a heating function, and a heating cover 96 and a heating rod 97 are provided on the outer wall of the filling cylinder 50. The temperature of the heating rod 97 can be controlled by an external temperature control system to heat the filling cylinder 50, so as to achieve a constant temperature of the rubber material in the cylinder and meet the spraying quality under different temperature conditions.

[0078] Furthermore, if Figure 2 , Figure 3As shown, a pressure sensor 98 is provided on one side of the glue outlet 71. The sensing end of the pressure sensor 98 is connected to the glue outlet 71, and the pressure sensor 98 can detect the pressure of the glue outlet 71. When the pressure does not meet the safe pressure range, the control system connected to the pressure sensor 98 can issue an alarm. At the same time, it can also detect whether the pressure value after filling and pre-pressing is reached when the glue is injected into the filling cylinder 50, so as to detect whether the glue injection is completed.

[0079] In this embodiment, the glue coating equipment has a large capacity and a large glue coating flow rate, and can spray glue sufficient for a single car. The glue coating for a single car does not need to be refilled, which can save production time.

[0080] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0081] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0082] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0083] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0084] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0085] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A quantitative glue coating device, characterized in that: include: Motor drive mechanism, drive motion mechanism, piston rod, cylinder piston, packing cylinder and injection valve; The motor drive mechanism is connected to the drive motion mechanism; The driving mechanism is fixedly connected to one end of the piston rod, and is driven by the motor driving mechanism to push or pull the piston rod to move, so as to realize the movement of the cylinder piston in the filling cylinder; The other end of the piston rod penetrates into the filling cylinder from one end of the filling cylinder and is fixedly connected to the cylinder piston; The cylinder piston is located in the packing cylinder and forms a seal with the packing cylinder; The piston rod and the cylinder piston are provided with a glue injection channel; The glue injection channel has one end located on the piston rod and connected to the glue injection valve, and the other end passes through the piston rod and extends to the end of the cylinder piston and connected to the filling cylinder; The other end of the filling cylinder is fixedly connected with a mounting block, the mounting block is provided with a glue outlet communicated with the interior of the filling cylinder, and the filling cylinder is fixedly connected with the fixing part of the motor drive mechanism.

2. A quantitative glue coating device as claimed in claim 1, characterized in that: The driving motion mechanism comprises: a connecting shaft and a planetary roller screw; The speed reduction output shaft of the motor drive mechanism is fixedly connected to one end of the connecting shaft; The connecting shaft is connected to the planetary roller screw, and the planetary roller screw is fixedly connected to one end of the piston rod.

3. A quantitative glue coating device as claimed in claim 2, characterized in that: Also includes a housing; The housing has one end fixedly connected to the fixing portion of the motor drive mechanism and the other end fixedly connected to the filling cylinder; The connecting shaft, the planetary roller screw and the piston rod are located in the housing; The other end of the connecting shaft is fixedly connected to one end of the roller nut of the planetary roller screw; The main screw of the planetary roller screw is fixedly connected to one end of the piston rod through a connecting seat; The main screw, one end of which is away from the connecting shaft, is fixedly connected to the connecting seat; The connecting seat is fixedly connected to one end of the piston rod and slidably connected to the housing to move linearly along the axial direction; The glue outlet portion of the glue injection valve is communicated with one end of the glue injection channel through a sliding window extending along the axial direction and provided on the shell.

4. A quantitative glue coating device as claimed in claim 3, characterized in that: The connecting shaft is sleeved with a first bearing; the roller nut is sleeved with a second bearing.

5. A quantitative glue coating device as claimed in claim 4, characterized in that: The housing comprises: a protective cover, a bearing seat, a mounting housing, a main housing and a mounting seat; The protective cover has one end fixedly connected to the fixing portion of the motor drive mechanism and the other end fixedly connected to one end of the bearing seat; The first bearing is arranged inside the bearing seat, the other end of the bearing seat is fixedly connected to one end of the mounting shell, the second bearing is arranged inside the mounting shell, the other end of the mounting shell is fixedly connected to one end of the main shell, the other end of the main shell is fixedly connected to the mounting seat, and the mounting seat is fixedly connected to the packing cylinder; The connecting seat is slidably connected to the mounting seat.

6. A quantitative glue coating device as claimed in claim 5, characterized in that: At least two guide rods extending in the axial direction are fixedly arranged on the mounting seat; The connecting seat is slidably connected to the mounting seat via the guide rod; The guide rod penetrates into the connection seat and is in sliding contact with the connection seat.

7. A quantitative glue coating device as claimed in claim 5, characterized in that: An in-position proximity switch is arranged at a position inside the main housing near the roller nut.

8. A quantitative glue coating device as claimed in claim 5, characterized in that: A heating cover is provided on the outer wall of the packing cylinder; The heating cover is fixedly connected to the mounting seat, and a heating rod is arranged on the heating cover.

9. A quantitative glue coating device as claimed in claim 2, characterized in that: The connecting shaft has a first connecting through hole and a second connecting through hole extending in the axial direction and penetrating therein; The first connecting through hole and the second connecting through hole are coaxial; The first connecting through hole is fixedly connected to the reduction output shaft of the motor drive mechanism; The main screw portion passes through the other end of the connecting shaft and is inserted into the second connecting through hole.

10. A quantitative glue coating device as claimed in claim 2, characterized in that: A pressure sensor is arranged on one side of the glue outlet.

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