Handheld double-component electric gluing gun

Abstract

The invention relates to an electric gluing gun, in particular to a handheld two-component electric gluing gun which comprises a power assembly and a glue outlet assembly, the power assembly comprises a motor shell and a lead screw nut gearbox, a direct-current motor is installed in the motor shell, a variable-speed-ratio planetary reducer is installed on one side of the motor shell, and the motor shell is internally provided with a power source; a high-low speed adjusting handle is arranged on the front face of the variable-speed-ratio planetary reducer, a power A / B distribution transmission box is installed on one side of the variable-speed-ratio planetary reducer, a proportion adjusting handle is arranged on the front face of the power A / B distribution transmission box, and a transmission shaft is installed on an output shaft of the power A / B distribution transmission box. The variable-speed-ratio planetary reducer, the proportion-adjustable reduction gearbox and the detachable glue barrel are adopted, mixing of different glue proportions can be achieved by adjusting the A / B speed ratio of the power distribution box and the diameter of the glue barrel, a portable lithium ion battery is adopted as a power source, on-site glue coating construction can be achieved, and great convenience is provided.

Description

Technical Field

[0001] The invention relates to an electric glue coating gun, in particular to a handheld two-component electric glue coating gun, belonging to the technical field of adhesive spraying. Background Art

[0002] With the promotion of adhesive technology, all walks of life will use adhesive bonding technology to replace welding technology or screw fixing and riveting technology. However, not all occasions can use special glue mixers to mix glue and spray. Therefore, hand-held spray guns were developed, and single-component glue guns were mainly used. However, the cost and curing speed of single-component glue do not have advantages, so two-component glue gradually replaced the original single-component. However, when the two-component glue is relatively large or has poor extrusion, the thrust of the hand-held manual spray gun is small and insufficient to promote the mixing of glue. The glue pressure that can be provided by the pneumatic power spray gun is generally no more than 1MPa. When the viscosity of the glue is large, the mixing speed is very slow, and even the piston cannot be pushed.

[0003] Chinese patent number CN112893039B provides a glue gun positioning auxiliary device and a glue gun structure, which includes: a support frame; an angle adjustment mechanism for fixing the glue gun, which is installed at one end of the support frame, and the angle adjustment mechanism can rotate relative to the support frame; and a limiting mechanism for limiting the workpiece, which is installed at the other end of the support frame. The present invention relates to a glue gun positioning auxiliary device and a glue gun structure, which can fix the glue gun on the angle adjustment mechanism, and the angle adjustment mechanism can rotate relative to the support frame, thereby driving the glue gun to rotate relative to the support frame, so that the glue gun can achieve movement or deflection angle, and increase the gluing range.

[0004] In order to solve the portable mixing problem of high-viscosity two-component glue, the existing technology provides power manually or pneumatically. The working principle is: a manual trigger drives a screw rod, and the screw rod drives two pistons to push the glue into the mixing tube, or a cylinder is used to provide power to drive the piston rod to push the piston in the A / B glue barrel. However, due to the power portability requirement, the power that can be provided by the cylinder or manual is insufficient, and for two-component glue with high viscosity, it is impossible to achieve a high mixing pressure.

[0005] Therefore, how to improve the driving force of glue while taking into account portability has become a difficult problem in the industry.

[0006] In view of this, the present invention is proposed. Summary of the invention

[0007] The purpose of the present invention is to provide a handheld two-component electric glue gun in order to solve the above problems.

[0008] The present invention achieves the above-mentioned purpose through the following technical solutions: a handheld two-component electric glue gun, including a power assembly and a glue dispensing assembly, the power assembly including a motor housing and a lead screw nut gearbox, a DC motor is installed inside the motor housing, a variable speed ratio planetary reducer is installed on one side of the motor housing, a fast and slow speed adjustment handle is provided on the front of the variable speed ratio planetary reducer, a power A / B distribution transmission box is installed on one side of the variable speed ratio planetary reducer, a ratio adjustment handle is provided on the front of the power A / B distribution transmission box, and the output of the power A / B distribution transmission box A transmission shaft is installed on the shaft, a main gear rotates inside the screw and nut gearbox, the main gear is fixedly sleeved on the outside of the transmission shaft, the main gear is meshed with a screw and nut gear, the inner wall of the screw and nut gear is provided with an internal thread, a screw rod is rotated by the internal thread of the screw and nut gear, a push plate is provided at one end of the screw rod, a rubber pad is provided on one side of the push plate, the glue output assembly includes a glue barrel fixing seat, a glue barrel tube is installed inside the glue barrel fixing seat, the motor housing, a variable speed ratio planetary reducer and a power A / B distribution transmission box are installed at the bottom of the glue barrel fixing seat.

[0009] Furthermore, a power supply assembly is installed at the bottom of the power assembly, and the power supply assembly includes a handheld handle, and a battery holder is installed at the bottom of the handheld handle.

[0010] Furthermore, a lithium-ion battery is clamped on the bottom of the battery holder, and a charging interface is embedded and installed on the front of the lithium-ion battery.

[0011] Furthermore, a mounting seat is installed on the top of the handheld handle, and a motor-controlled trigger is installed on one side of the mounting seat.

[0012] Furthermore, an adjustment seat is installed on the top of the mounting seat, a motor forward and reverse adjustment handle is movably installed on the front of the adjustment seat, and the variable speed ratio planetary reducer and power A / B distribution transmission box are installed on the top of the adjustment seat.

[0013] Furthermore, a plurality of limit blocks are provided on the inner wall of the screw nut gearbox, and sliding grooves are provided on both sides of the screw nut gear, and the screw nut gear rotates on the limit blocks through the sliding grooves.

[0014] Furthermore, a connecting seat is fixed on the other side of the pushing plate, a rotating groove is arranged inside the connecting seat, a rotating disk is fixed on one end of the screw rod, and the rotating disk rotates in the rotating groove in the connecting seat.

[0015] Furthermore, a fixing plate is fixed to one end of the glue barrel fixing seat, and clamping frames are fixed to both sides of the fixing plate, and an A / B glue manifold block is clamped inside the clamping frame.

[0016] Furthermore, a mounting plate is fixed on the top of the clamping frame and the A / B glue bus block, and a mounting hole is opened on one side of the mounting plate.

[0017] Furthermore, a static mixing enhancement tube is fixed to one side of the A / B glue manifold block, a static mixing tube is fixed to one end of the static mixing enhancement tube, and a glue outlet head is installed at one end of the static mixing tube.

[0018] The technical effects and advantages of the present invention are as follows: (1) Through the DC motor, the DC motor can adjust the speed through a variable speed ratio planetary reducer, and then the power is divided into two A / B paths through the power A / B distribution transmission box. A speed regulating mechanism is set inside the distribution transmission box to adjust the speed ratio of the A / B power, thereby adjusting the movement speed of the A / B glue extrusion screw, thereby adjusting the spraying ratio of the A / B glue; (2) Through the variable speed ratio planetary reducer, the power of the DC motor passes through the variable speed ratio planetary reducer and is distributed, and then enters the screw nut gearbox, and transmits the torque to the screw nut gear through the main gear transmission. Through the rotation of the screw nut and the screw nut gear, the power is converted into the linear motion of the screw. A push plate is installed at the end of the screw to push the soft-package A / B glue in the A / B glue barrel tube to achieve glue extrusion. The glue enters the static mixing tube through the A / B glue manifold to achieve mixed spraying of A / B glue; (3) The power of the equipment comes from the portable lithium-ion battery through the installed lithium-ion battery, and the start and stop of the DC motor are controlled by the motor control trigger. The DC motor can realize the speed change with the displacement of the motor control trigger through the control circuit, and the forward and reverse rotation of the DC motor can be controlled by the motor forward and reverse adjustment handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the power assembly of the present invention; Figure 3 It is a schematic diagram of the structure of the glue discharging component of the present invention; Figure 4 It is a schematic diagram of the local structure of the glue discharging component of the present invention; Figure 5 It is a schematic diagram of the structure of the power supply component of the present invention.

[0020] In the figure: 100, power supply assembly; 101, hand-held handle; 102, battery holder; 103, lithium-ion battery; 104, charging interface; 105, mounting seat; 106, motor control trigger; 107, adjustment seat; 108, motor forward and reverse adjustment handle; 200, power assembly; 201, motor housing; 202, DC motor; 203, variable speed ratio planetary reducer; 204, fast and slow speed adjustment handle; 205, power A / B distribution transmission box; 206, ratio adjustment handle; 207, transmission shaft; 208, screw nut gearbox; 20 9. Main gear; 210. Screw nut gear; 211. Sliding groove; 212. Limit block; 213. Internal thread; 214. Screw member; 215. Connecting seat; 216. Rotating groove; 217. Rotating disk; 218. Push plate; 219. Rubber pad; 300. Glue discharging assembly; 301. Glue barrel fixing seat; 302. Glue barrel tube; 303. Fixing plate; 304. Snap-on frame; 305. A / B glue manifold block; 306. Mounting plate; 307. Mounting hole; 308. Static mixing enhancement tube; 309. Static mixing tube; 310. Glue discharging head. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-5As shown, a handheld two-component electric glue gun includes a power assembly 200 and a glue dispensing assembly 300. The power assembly 200 includes a motor housing 201 and a lead screw nut gearbox 208. A DC motor 202 is installed inside the motor housing 201. The DC motor 202 can achieve a rotation speed change with the displacement of the motor control trigger 106 through a control circuit. A variable speed ratio planetary reducer 203 is installed on one side of the motor housing 201. The DC motor 202 adjusts the speed through the variable speed ratio planetary reducer 203, and then divides the power into two A / B paths through a power A / B distribution transmission box 205. A speed regulating mechanism is set inside the distribution transmission box to adjust the speed. The speed ratio of the A / B power is adjusted. A speed adjustment handle 204 is arranged on the front of the variable speed ratio planetary reducer 203. A power A / B distribution transmission box 205 is installed on one side of the variable speed ratio planetary reducer 203. A ratio adjustment handle 206 is arranged on the front of the power A / B distribution transmission box 205. A transmission shaft 207 is installed on the output shaft of the power A / B distribution transmission box 205. A main gear 209 rotates inside the screw nut gearbox 208. After the power of the DC motor 202 passes through the variable speed ratio planetary reducer 203 and is distributed, it is transmitted into the screw nut gearbox 208 and transmitted through the main gear 209 to transmit the torque to the screw nut. The mother gear 210 converts the power into the linear motion of the screw through the rotation of the screw nut and the screw nut gear 210. A push plate 218 is installed at the end of the screw. The main gear 209 is fixedly sleeved on the outside of the transmission shaft 207. The main gear 209 is meshed with the screw nut gear 210. The inner wall of the screw nut gearbox 208 is provided with a plurality of limit blocks 212. Sliding grooves 211 are provided on both sides of the screw nut gear 210. The screw nut gear 210 rotates on the limit blocks 212 through the sliding grooves 211. The inner wall of the screw nut gear 210 is provided with an internal thread 213. The internal thread of the screw nut gear 210 rotates with a screw rod 214. The screw adopts A semicircular lead screw is used, and a flattened plane is used to prevent the lead screw from rotating. A push plate 218 is provided at one end of the lead screw 214. The push plate 218 pushes the soft-package A / B glue in the A / B glue barrel tube 302 to extrude the glue. The glue enters the static mixing tube 309 through the A / B glue manifold 305 to achieve mixed spraying of the A / B glue. A rubber pad 219 is provided on one side of the push plate 218, and a connecting seat 215 is fixed on the other side of the push plate 218. A rotating groove 216 is provided inside the connecting seat 215. A rotating disk 217 is fixed at one end of the lead screw 214, and the rotating disk 217 rotates in the rotating groove 216 in the connecting seat 215. The glue discharging assembly 300 includes a glue barrel fixing seat 301, a glue barrel tube 302 is installed inside the glue barrel fixing seat 301, a motor housing 201, a variable speed ratio planetary reducer 203 and a power A / B distribution transmission box 205 are installed at the bottom of the glue barrel fixing seat 301, a fixing plate 303 is fixed at one end of the glue barrel fixing seat 301, a clamping frame 304 is fixed on both sides of the fixing plate 303, an A / B glue manifold 305 is clamped inside the clamping frame 304, and a mounting plate 306 is fixed on the top of the clamping frame 304 and the A / B glue manifold 305. The mounting plate 306 is fixed on the top of the mounting plate 306. A mounting hole 307 is provided on one side of 6, a static mixing enhancement tube 308 is fixed on one side of the A / B glue manifold 305, a static mixing tube 309 is fixed on one end of the static mixing enhancement tube 308, and the A / B glue enters the static mixing tube 309 respectively after entering the manifold, thereby achieving mixing. By setting the motor power and speed together, a glue mixing pressure of about 10MPa can be achieved, thereby achieving mixing of high-viscosity glue, and a glue outlet head 310 is installed on one end of the static mixing tube 309, and the mixed glue is applied to the designated structure through the glue outlet head 310.

[0023] As a technical optimization scheme of the present invention, a power supply component 100 is installed at the bottom of the power component 200, and the power supply component 100 includes a handheld handle 101, a battery holder 102 is installed at the bottom of the handheld handle 101, a lithium-ion battery 103 is clamped at the bottom of the battery holder 102, and a charging interface 104 is embedded and installed on the front of the lithium-ion battery 103, a mounting seat 105 is installed on the top of the handheld handle 101, a motor control trigger 106 is installed on one side of the mounting seat 105, and the motor control trigger 106 is pressed to control the start and stop of the DC motor 202, an adjustment seat 107 is installed on the top of the mounting seat 105, and a motor forward and reverse adjustment handle 108 is movably installed on the front of the adjustment seat 107, and the forward and reverse rotation of the DC motor 202 is controlled by the motor forward and reverse adjustment handle 108, and a variable speed ratio planetary reducer 203 and a power A / B distribution transmission box 205 are installed on the top of the adjustment seat 107.

[0024] When the present invention is used, the A / B glue is respectively placed in the designated glue barrel fixing seat 301, the A / B glue is in a soft package, and the diameter of the replaceable glue barrel and the B glue packaging bag is adjusted at the same time, so that the ratio control of the A / B glue can be achieved. At the same time, the A / B glue is placed in different glue barrel tubes 302, the hand grip 101 is held, and the motor control trigger 106 is pressed. The start and stop of the DC motor 202 is controlled by the motor control trigger 106, and the DC motor 202 can realize the rotation speed of the motor control by the control circuit. The displacement of the trigger 106 changes, and the forward and reverse rotation of the DC motor 202 is controlled by the motor forward and reverse adjustment handle 108, the DC motor 202 is started, the DC motor 202 is adjusted to a fast or slow speed by the variable speed ratio planetary reducer 203, and then the power is divided into two A / B paths through the power A / B distribution transmission box 205. The speed regulating mechanism is set inside the distribution transmission box to adjust the speed ratio of the A / B power, thereby adjusting the movement speed of the A / B glue squeezing screw, thereby adjusting the spraying ratio of the A / B glue, and at the same time, the power of the DC motor 202 is adjusted by the variable speed ratio planetary reducer 203. After the speed ratio planetary reducer 203 is distributed, the transmission enters the screw nut gearbox 208, and is transmitted through the main gear 209 to transmit the torque to the screw nut gear 210. Through the rotation of the screw nut, the screw nut gear 210, the power is converted into the linear motion of the screw. A push plate 218 is installed at the end of the screw to push the soft-package A / B glue in the A / B glue barrel tube 302 to achieve glue extrusion. The glue enters the static mixing tube 309 through the A / B glue confluence block 305 to achieve mixed spraying of the A / B glue. At the same time, the screw adopts a semicircular screw. The flattened plane is used to prevent the lead screw from rotating. After the A / B glue enters the confluence block, it enters the static mixing tube 309 respectively to achieve mixing. By setting the motor power and speed together, a glue mixing pressure of about 10 MPa can be achieved, thereby achieving the mixing of high-viscosity glue and providing a relatively fast mixing speed. When the A / B glue ratio is 1:1 and the viscosity is lower than 200,000 cps, a mixing speed of 400 ml / min can be achieved, and then the mixed glue is applied to the designated position through the glue outlet head 310.

[0025] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A handheld two-component electric glue gun, comprising a power assembly (200) and a glue dispensing assembly (300), characterized in that: The power assembly (200) comprises a motor housing (201) and a lead screw nut gearbox (208); a DC motor (202) is installed inside the motor housing (201); a variable speed ratio planetary reducer (203) is installed on one side of the motor housing (201); a speed adjustment handle (204) is provided on the front of the variable speed ratio planetary reducer (203); a power A / B distribution transmission box (205) is installed on one side of the variable speed ratio planetary reducer (203); a ratio adjustment handle (206) is provided on the front of the power A / B distribution transmission box (205); a transmission shaft (207) is installed on the output shaft of the power A / B distribution transmission box (205); a main gear (209) is rotated inside the lead screw nut gearbox (208); A main gear (209) is fixedly sleeved on the outside of the transmission shaft (207), the main gear (209) is meshed with a lead screw nut gear (210), the inner wall of the lead screw nut gear (210) is provided with an internal thread (213), the internal thread of the lead screw nut gear (210) is rotated with a lead screw member (214), one end of the lead screw member (214) is provided with a push plate (218), one side of the push plate (218) is provided with a rubber pad (219), the glue output component (300) comprises a glue barrel fixing seat (301), a glue barrel tube (302) is installed inside the glue barrel fixing seat (301), and the motor housing (201), the variable speed ratio planetary reducer (203) and the power A / B distribution transmission box (205) are installed at the bottom of the glue barrel fixing seat (301).

2. A handheld two-component electric glue gun according to claim 1, characterized in that: A power supply assembly (100) is installed at the bottom of the power assembly (200), the power supply assembly (100) comprises a handheld handle (101), and a battery holder (102) is installed at the bottom of the handheld handle (101).

3. A handheld two-component electric glue gun according to claim 2, characterized in that: A lithium-ion battery (103) is clamped on the bottom of the battery seat (102), and a charging interface (104) is embedded and installed on the front of the lithium-ion battery (103).

4. A handheld two-component electric glue gun according to claim 2, characterized in that: A mounting seat (105) is mounted on the top of the handheld handle (101), and a motor-controlled trigger (106) is mounted on one side of the mounting seat (105).

5. A handheld two-component electric glue gun according to claim 4, characterized in that: An adjustment seat (107) is mounted on the top of the mounting seat (105); a motor forward and reverse adjustment handle (108) is movably mounted on the front of the adjustment seat (107); and the variable speed ratio planetary reducer (203) and the power A / B distribution transmission box (205) are mounted on the top of the adjustment seat (107).

6. The handheld two-component electric glue gun according to claim 1, characterized in that: The inner wall of the screw nut gearbox (208) is provided with a plurality of limit blocks (212), and sliding grooves (211) are provided on both sides of the screw nut gear (210), and the screw nut gear (210) rotates on the limit blocks (212) through the sliding grooves (211).

7. The handheld two-component electric glue gun according to claim 1, characterized in that: A connecting seat (215) is fixed to the other side of the push plate (218), a rotating groove (216) is provided inside the connecting seat (215), a rotating disk (217) is fixed to one end of the screw rod (214), and the rotating disk (217) rotates in the rotating groove (216) in the connecting seat (215).

8. The handheld two-component electric glue gun according to claim 1, characterized in that: A fixing plate (303) is fixed to one end of the glue barrel fixing seat (301), a clamping frame (304) is fixed to both sides of the fixing plate (303), and an A / B glue manifold block (305) is clamped inside the clamping frame (304).

9. A handheld two-component electric glue gun according to claim 8, characterized in that: A mounting plate (306) is fixed to the top of the clamping frame (304) and the A / B glue bus block (305), and a mounting hole (307) is provided on one side of the mounting plate (306).

10. The handheld two-component electric glue gun according to claim 8, characterized in that: A static mixing enhancement tube (308) is fixed to one side of the A / B glue manifold (305), a static mixing tube (309) is fixed to one end of the static mixing enhancement tube (308), and a glue outlet head (310) is installed at one end of the static mixing tube (309).

Images