Double-station tin scraper

Abstract

The utility model discloses a double-station tin scraper which comprises a rack, a conveying groove, a tin scraping mechanism and a jacking mechanism, the conveying groove, the tin scraping mechanism and the jacking mechanism are arranged on the rack, the conveying groove is used for conveying a carrier, the carrier is used for bearing a product, the tin scraping mechanism is provided with a solder paste base, a tin scraping assembly and a driving device, the solder paste base is provided with a solder paste groove, the solder paste groove is arranged right above the conveying groove, and the jacking mechanism is arranged on the rack. A plurality of meshes distributed at intervals in the front-back direction are formed in the bottom of the solder paste groove, the tin scraping assembly is arranged in the solder paste groove, the driving device drives the tin scraping assembly to move front and back in the solder paste groove, and the jacking mechanism is arranged below the conveying groove and can jack two adjacent carriers in the conveying groove upwards. According to the double-station tin scraping device, a double-station automatic production mode is adopted, tin scraping operation can be carried out on the products on the two carriers at a time, and the tin scraping efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of tin scraping machines, in particular to a double-station tin scraping machine. Background Art

[0002] Welding is a process of connecting and fixing two workpieces by using solder materials. Solder paste is a paste-like solder material, and when the solder paste is heated and melted, the two workpieces can be welded and fixed.

[0003] A tin scraping machine is an automated device for scraping tin. It mainly includes a positioning seat, a stencil, a tin scraping assembly and a driving device. The positioning seat is provided with a positioning groove for positioning the workpiece. A scraper is arranged on the tin scraping assembly. During operation, the worker places the workpiece in the positioning groove, and uses the driving device to drive the scraper to reciprocate, so that the scraper scrapes the solder paste through the mesh holes on the stencil onto the workpiece, and finally takes out the product with tin scraped. However, due to the traditional manual feeding method of the tin scraping machine, the tin scraping efficiency is low. Summary of the Utility Model

[0004] Aiming at the deficiencies existing in the prior art, the utility model provides a double-station tin scraping machine, which adopts a double-station automated production method and can perform tin scraping operations on the products on two carriers at one time, so that the tin scraping efficiency is higher.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] A double-station tin scraping machine includes a frame, as well as a conveying groove, a tin scraping mechanism and a lifting mechanism arranged on the frame. The conveying groove is used for conveying carriers, and the carriers are used for carrying products. The tin scraping mechanism is provided with a solder paste seat, a tin scraping assembly and a driving device. The solder paste seat is provided with a solder paste groove, and the solder paste groove is arranged directly above the conveying groove. The bottom of the solder paste groove is provided with a plurality of mesh holes spaced at intervals in the front-rear direction. The tin scraping assembly is arranged in the solder paste groove, and the driving device drives the tin scraping assembly to move back and forth in the solder paste groove. The lifting mechanism is arranged below the conveying groove, and the lifting mechanism can jack up two adjacent carriers in the conveying groove, so that the products on the jacked-up carriers extend upward into the mesh holes.

[0007] By setting a conveying trough, a solder scraping mechanism, and a lifting mechanism on the rack, the solder scraping mechanism consists of a solder paste seat, a solder scraping assembly, and a driving device. The solder paste trough on the solder paste seat is located directly above the conveying trough. A number of mesh holes are provided at the bottom of the solder paste trough, spaced apart in the front-rear direction. The solder scraping assembly is arranged in the solder paste trough. During operation, first, a carrier carrying a product is conveyed to the lifting mechanism by a conveying mechanism; then, the lifting mechanism jacks up two adjacent carriers upward, so that the product on the lifted carrier extends upward into the mesh holes; then, the driving device drives the solder scraping assembly to move back and forth, so that the solder scraping assembly scrapes the solder paste from the mesh holes onto the product. Finally, the lifting mechanism drives the two adjacent carriers and the products on the carriers to move downward synchronously, and the solder paste attached to the product moves downward with the product, realizing an automated production process of carrier loading, carrier jacking, product solder scraping, and carrier unloading. Adopting a double-station automated production method, the solder scraping operation can be performed on the products on two carriers at one time, and the solder scraping efficiency is higher.

[0008] As a preferred solution, the solder scraping assembly includes a first scraper, a second scraper, a third scraper, and a fourth scraper. The first scraper, the third scraper, the second scraper, and the fourth scraper are sequentially arranged in the solder paste trough from front to back. The first scraper and the second scraper are both inclined forward from top to bottom, and the third scraper and the fourth scraper are both inclined backward from top to bottom. The driving device drives the first scraper, the second scraper, the third scraper, and the fourth scraper to move back and forth synchronously in the solder paste trough.

[0009] As a preferred solution, the driving end of the driving device is connected with a first tool holder, a second tool holder, a first lifting cylinder, and a second lifting cylinder. The first lifting cylinder can drive the first tool holder to move up and down, and the second lifting cylinder can drive the second tool holder to move up and down. The first scraper and the second scraper are both arranged on the first tool holder, and the third scraper and the fourth scraper are both arranged on the second tool holder.

[0010] As a preferred solution, a first rotating seat and a second rotating seat are rotatably arranged on the first tool holder. The rotation axes of the first rotating seat and the second rotating seat both extend in the left-right direction. The first scraper is rotationally adjusted and installed on the first tool holder through the first rotating seat, and the second scraper is rotationally adjusted and installed on the first tool holder through the second rotating seat to adjust the inclination angles of the first scraper and the second scraper.

[0011] As a preferred solution, an installation frame rotatably connected to the rack is further provided on the solder scraping mechanism. The rotation axis of the installation frame extends in the front-rear direction. The solder paste seat, the solder scraping assembly, and the driving device are all arranged on the installation frame.

[0012] As a preferred solution, two rows of mesh hole groups are arranged at the bottom of the solder paste tank in the front-back direction. Each row of the mesh hole groups corresponds to a carrier, and each row of the mesh hole groups includes no less than ten mesh holes distributed in the front-back direction.

[0013] As a preferred solution, the mesh hole includes a first through groove and a second through groove. The solder paste tank, the first through groove, and the second through groove are communicated with each other in sequence from top to bottom. The width B1 of the second through groove < the width B2 of the product < the width B3 of the first through groove.

[0014] As a preferred solution, a detachable first mesh plate and a second mesh plate are arranged at the bottom of the solder paste seat. The first through groove is arranged on the first mesh plate, and the second through groove is arranged on the second mesh plate.

[0015] As a preferred solution, the conveying groove extends in the front-back direction. A first material blocking component and a second material blocking component are arranged on the outer side of the conveying groove. The second material blocking component is arranged in front of the first material blocking component. Both the first material blocking component and the second material blocking component include a material blocking rod and a material blocking driving unit. The material blocking driving unit drives the material blocking rod to extend into or withdraw from the conveying groove. The distance B4 between the two material blocking rods = twice the length B5 of the carrier in the front-back direction.

[0016] As a preferred solution, a first positioning mechanism and a second positioning mechanism are arranged above the lifting mechanism. The first positioning mechanism and the second positioning mechanism are respectively arranged on the left and right sides of the conveying groove. The first positioning component and the second positioning component are used to position the product on the lifted carrier.

[0017] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, by arranging a conveying groove, a solder scraping mechanism, and a lifting mechanism on the frame, the solder scraping mechanism is composed of a solder paste seat, a solder scraping component, and a driving device. The solder paste tank on the solder paste seat is located directly above the conveying groove. A plurality of mesh holes are arranged at the bottom of the solder paste tank at intervals in the front-back direction. The solder scraping component is arranged in the solder paste tank. During operation, first, the carrier carrying the product is conveyed to the lifting mechanism by the conveying mechanism; then, the adjacent two carriers are lifted upward by the lifting mechanism, so that the product on the lifted carrier extends upward into the mesh holes; then, the driving device drives the solder scraping component to move back and forth, so that the solder scraping component scrapes the solder paste from the mesh holes onto the product; finally, the lifting mechanism drives the adjacent two carriers and the products on the carriers to move down synchronously, and the solder paste attached to the product moves down with the product, realizing the automated production process of carrier loading, carrier lifting, product solder scraping, and carrier unloading. Adopting a double-station automated production method, the solder scraping operation can be performed on the products on two carriers at one time, and the solder scraping efficiency is higher.

[0018] In order to more clearly explain the structural features, technical means and specific purposes and functions achieved by the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the assembly structure of an embodiment of the utility model from a first perspective;

[0020] Figure 2 It is a top view of the working state of the embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the assembly structure of the embodiment of the utility model from a second viewing angle;

[0022] Figure 4 It is an exploded schematic diagram of an embodiment of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the tin scraping mechanism of an embodiment of the utility model;

[0024] Figure 6 It is a cross-sectional schematic diagram of the tin scraping mechanism and the lifting mechanism of the embodiment of the utility model;

[0025] Figure 7 This is a schematic diagram of the solder paste holder structure of an embodiment of the utility model;

[0026] Figure 8 This is a schematic diagram of the solder paste holder according to an embodiment of the present invention;

[0027] Figure 9 It is a schematic diagram of the structure of the first positioning mechanism of an embodiment of the utility model;

[0028] Figure 10 It is a schematic diagram of the structure of the second positioning mechanism of an embodiment of the utility model;

[0029] Figure 11 It is a schematic diagram of the working state of the carrier, the first positioning seat, and the second positioning seat of the embodiment of the utility model;

[0030] Figure 12 yes Figure 11 A cross-sectional schematic diagram of

[0031] Figure 13 yes Figure 12 A partial enlarged schematic diagram of part A.

[0032] Description of the accompanying drawings:

[0033] 10 - Frame; 20 - Conveyor trough; 21 - Limit block; 22 - First material blocking assembly; 221 - Material blocking rod; 222 - Material blocking cylinder; 23 - Second material blocking assembly; 30 - Solder scraping mechanism; 31 - Solder paste seat; 311 - Solder paste trough; 312 - Mesh holes; 312C - Mesh hole group; 3121 - First through slot; 3122 - Second through slot; 313 - First mesh plate; 314 - Second mesh plate; 32 - Solder scraping assembly; 321 - First scraper; 322 - Second scraper; 323 - Third scraper; 324 - Fourth scraper; 33 - Driving device; 331 - Slide seat; 332 - First driving unit; 34 - First tool holder; 341 - First lifting cylinder; 35 - Second tool holder; 351 - Second lifting cylinder; 36 - First rotating seat; 361 - Arc-shaped hole; 37 - Mounting frame; 40 - Jacking mechanism; 41 - Jacking seat; 42 - Second driving unit; 43 - Positioning pin; 50 - First positioning mechanism; 51 - First positioning seat; 52 - Third driving unit; 53 - First positioning plate; 54 - Positioning groove; 55 - Positioning piece; 60 - Second positioning mechanism; 61 - Second positioning seat; 62 - Fourth driving unit; 63 - Second positioning plate; 70 - Carrier; 71 - Product. Detailed implementation mode

[0034] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0035] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] As Figure 1-13 As shown, the present invention discloses a double-station solder scraping machine, including a frame 10, and a conveyor trough 20, a solder scraping mechanism 30, and a jacking mechanism 40 provided on the frame 10. The conveyor trough 20 is used to convey a carrier 70, and the carrier 70 is used to carry a product 71. A conveyor belt (not labeled) capable of driving the carrier 70 to move is provided in the conveyor trough 20, and the conveyor belt is driven to rotate by a rotating motor (not labeled).

[0037] The solder scraping mechanism 30 is provided with a solder paste seat 31, a solder scraping assembly 32, and a driving device 33. The solder paste seat 31 is provided with a solder paste groove 311 with an upward opening. The solder paste groove 311 is arranged directly above the conveying groove 20. Both the solder paste groove 311 and the conveying groove 20 extend in the front-rear direction. It can be understood that the extending direction of the solder paste groove 311 can also be set perpendicular to the extending direction of the conveying groove 20. The bottom of the solder paste groove 311 is provided with a plurality of mesh holes 312 spaced apart in the front-rear direction. The solder scraping assembly 32 is arranged in the solder paste groove 311. The driving device 33 drives the solder scraping assembly 32 to move back and forth in the solder paste groove 311. The lifting mechanism 40 is arranged below the conveying groove 20. The lifting mechanism 40 can lift two adjacent carriers 70 in the conveying groove 20 upward, so that the product 71 on the lifted carrier 70 extends upward into the mesh holes 312. Specifically, two rows of mesh hole groups 312C are arranged in the front-rear direction at the bottom of the solder paste groove 311. Each row of the mesh hole groups 312C corresponds to one carrier 70. Each row of the mesh hole groups 312C includes no less than ten mesh holes 312 arranged in the front-rear direction. Exemplarily, the number of mesh holes 312 in each row of the mesh hole groups 312C is sixteen.

[0038] The solder scraping assembly 32 includes a first scraper 321, a second scraper 322, a third scraper 323, and a fourth scraper 324. The first scraper 321, the third scraper 323, the second scraper 322, and the fourth scraper 324 are sequentially arranged in the solder paste groove 311 from front to back. Both the first scraper 321 and the second scraper 322 are inclined forward from top to bottom. Both the third scraper 323 and the fourth scraper 324 are inclined backward from top to bottom. The driving device 33 drives the first scraper 321, the second scraper 322, the third scraper 323, and the fourth scraper 324 to move synchronously back and forth in the solder paste groove 311. By arranging the first scraper 321, the second scraper 322, the third scraper 323, and the fourth scraper 324, both the first scraper 321 and the second scraper 322 are inclined forward from top to bottom, both the third scraper 323 and the fourth scraper 324 are inclined backward from top to bottom, and the first scraper 321, the third scraper 323, the second scraper 322, and the fourth scraper 324 are sequentially arranged in the solder paste groove 311 from front to back. When the driving device 33 drives forward, the first scraper 321 and the second scraper 322 are used for scraping the material. Conversely, when the driving device 33 drives backward, the third scraper 323 and the fourth scraper 324 are used for scraping the material. Thus, the driving device 33 can complete two times of scraping in one forward and backward drive, improving the solder scraping efficiency.

[0039] The driving end of the driving device 33 is connected with a first tool holder 34, a second tool holder 35, a first lifting cylinder 341 and a second lifting cylinder 351. The first lifting cylinder 341 can drive the first tool holder 34 to move up and down, and the second lifting cylinder 351 can drive the second tool holder 35 to move up and down. The first scraping blade 321 and the second scraping blade 322 are both arranged on the first tool holder 34, and the third scraping blade 323 and the fourth scraping blade 324 are both arranged on the second tool holder 35. By arranging the first lifting cylinder 341 and the second lifting cylinder 351, the first lifting cylinder 341 can drive the first scraping blade 321 and the second scraping blade 322 to extend into or withdraw from the solder paste tank 311, and the second lifting cylinder 351 can drive the third scraping blade 323 and the fourth scraping blade 324 to extend into or withdraw from the solder paste tank 311. Thus, when the first scraping blade 321 and the second scraping blade 322 scrape the material, the second lifting cylinder 351 is used to drive the third scraping blade 323 and the fourth scraping blade 324 to withdraw upward from the solder paste tank 311. Similarly, when the third scraping blade 323 and the fourth scraping blade 324 scrape the material, the first lifting cylinder 341 is used to drive the first scraping blade 321 and the second scraping blade 322 to withdraw upward from the solder paste tank 311.

[0040] A first rotating seat 36 and a second rotating seat (not labeled) are rotatably arranged on the first tool holder 34. The rotation axes of the first rotating seat 36 and the second rotating seat both extend in the left-right direction. The first scraping blade 321 is rotationally adjusted and installed on the first tool holder 34 through the first rotating seat 36, and the second scraping blade 322 is rotationally adjusted and installed on the first tool holder 34 through the second rotating seat to adjust the inclination angles of the first scraping blade 321 and the second scraping blade 322. Specifically, arc-shaped holes 361 are provided on both the first rotating seat 36 and the second rotating seat, and connection holes (not labeled) corresponding to the arc-shaped holes 361 one by one are provided on the first tool holder 34. Screws pass through the arc-shaped holes 361 and the connection holes, so that both the first rotating seat 36 and the second rotating seat can be rotationally adjusted and installed on the first tool holder 34. It can be understood that the third scraping blade 323 and the fourth scraping blade 324 can also be rotationally adjusted and installed on the second tool holder 35. The adjustment methods and principles of the third scraping blade 323 and the fourth scraping blade 324 are the same as those of the first scraping blade 321, so they will not be elaborated here. By arranging the first rotating seat 36 and the second rotating seat, the inclination angles of the first scraping blade 321 and the second scraping blade 322 can be adjusted, making the scraping effect of the first scraping blade 321 and the second scraping blade 322 better.

[0041] The driving device 33 includes a sliding seat 331 and a first driving unit 332. The sliding seat 331 is slidably connected to the frame 10 in the front-rear direction. The first driving unit 332 drives the sliding seat 331 to move back and forth. The first tool rest 34, the second tool rest 35, the first lifting cylinder 341, and the second lifting cylinder 351 are all arranged on the sliding seat 331. Specifically, the first driving unit 332 can be a cylinder or a linear motor.

[0042] The mesh hole 312 includes a first through groove 3121 and a second through groove 3122. The solder paste tank 311, the first through groove 3121, and the second through groove 3122 are communicated with each other in sequence from top to bottom. The width B1 of the second through groove 3122 < the width B2 of the product 71 < the width B3 of the first through groove 3121. Among them, the topmost end of the product 71 on the lifted carrier 70 will not protrude upward beyond the first through groove 3121 to prevent the solder scraping assembly 32 from colliding with the uppermost end of the product 71. By setting the width B1 of the second through groove 3122 < the width B2 of the product 71 < the width B3 of the first through groove 3121, it is beneficial for the solder paste in the solder paste tank 311 to flow through the first through groove 3121 and then enter the second through groove 3122, and make the solder paste in the second through groove 3122 adhere to the upper end of the product 71.

[0043] The bottom of the solder paste seat 31 is provided with a detachable first mesh plate 313 and a second mesh plate 314. The first mesh plate 313 and the second mesh plate 314 are detachably connected to the solder paste seat 31 by screws. The first through groove 3121 is arranged on the first mesh plate 313, and the second through groove 3122 is arranged on the second mesh plate 314. By setting the detachable first mesh plate 313 and second mesh plate 314, changing different first mesh plates 313 and second mesh plates 314 can change the mesh hole 312, which can adapt to different models of products 71 and has good versatility.

[0044] The solder scraping mechanism 30 is further provided with a mounting bracket 37 rotatably connected to the frame 10. The rotation axis of the mounting bracket 37 extends in the front-rear direction. The solder paste seat 31, the solder scraping assembly 32, and the driving device 33 are all arranged on the mounting bracket 37. By setting the mounting bracket 37 rotatably connected to the frame 10, rotating the mounting bracket 37 can make the entire solder scraping mechanism 30 turn upward by a certain angle, which is convenient for the maintenance and cleaning of the solder scraping mechanism 30 and convenient for checking the working conditions below the solder paste seat 31 during equipment debugging.

[0045] The lifting mechanism 40 includes a lifting seat 41 and a second driving unit 42. The second driving unit 42 can drive the lifting seat 41 to move upward so that the lifting seat 41 can lift up two adjacent carriers 70 in the conveying trough 20. Specifically, the lifting seat 41 is connected to the frame 10 for sliding up and down. The second driving unit 42 is a cylinder or a linear motor. The bottom of the conveying trough 20 is provided with an avoidance space (unnumbered) for the lifting seat 41 to move up and down. The top of the conveying trough 20 is provided with a plurality of limit blocks 21 for limiting the upward movement of the carrier 70. The lifting seat 41 is provided with two positioning pins 43 distributed front and back. The positioning pins 43 can be inserted upward into the positioning holes (unnumbered) on the carrier 70. By adopting a lifting method of lifting two carriers 70 at one time, the tin scraping efficiency is improved.

[0046] The outer side of the conveying trough 20 is provided with a first material blocking component 22 and a second material blocking component 23, the second material blocking component 23 is arranged in front of the first material blocking component 22, the first material blocking component 22 and the second material blocking component 23 both include a material blocking rod 221 and a material blocking driving unit 222, the material blocking driving unit 222 drives the material blocking rod 221 to extend into or exit the conveying trough 20, the spacing B4 between the two material blocking rods 221 is equal to twice the length B5 of the carrier 70 along the front-to-back direction, specifically, the first material blocking component 22 and the second material blocking component 23 are both provided On the right side of the conveying trough 20, the material blocking driving unit 222 is a cylinder; when working, the first material blocking component 22 is only used once when the equipment is started, and subsequently only the second material blocking component 23 cooperates with the first two carriers 70 to block the rear two carriers 70. The specific principle is: the blocking rod 221 on the first material blocking component 22 is extended into the conveying trough 20 to block the first carrier 70 in front, and the lifting mechanism 40 lifts up the adjacent first carrier 70 and the second carrier 70 (the lifted carrier 70 does not completely leave the conveying trough 20, so that the lifted carrier 7 0 will still block the rear carrier 70 from moving forward), the first scraper 321 on the scraping mechanism 30 scrapes the solder paste to the product 71 on the first carrier 70 that is lifted up, and the second scraper 322 scrapes the solder paste to the product 71 on the second carrier 70 that is lifted up. After the scraping is completed, the first carrier 70 and the second carrier 70 are synchronously lowered and reset, the blocking rod 221 on the first blocking assembly 22 withdraws from the conveying trough 20, and the blocking rod 221 on the second blocking assembly 23 extends into the conveying trough 20 to block the first carrier 70. The ends of the two carriers 70 are butted against each other, so the first carrier 70 blocks the second carrier 70, the second carrier 70 blocks the third carrier 70, and the third carrier 70 blocks the fourth carrier 70. When the lifting mechanism 40 lifts up the third carrier 70 and the fourth carrier 70, the blocking rod 221 on the second blocking assembly 23 withdraws from the conveying trough 20, so that the first carrier 70 and the second carrier 70 move forward and pass over the blocking rod 221 on the second blocking assembly 23, and then the blocking rod 221 on the second blocking assembly 23 re-extends into the conveying trough 20, and the above process is repeated.

[0047] A first positioning mechanism 50 and a second positioning mechanism 60 are provided above the lifting mechanism 40. The first positioning mechanism 50 and the second positioning mechanism 60 are respectively provided on the left and right sides of the conveying trough 20. The first positioning assembly and the second positioning assembly are used to position the product 71 on the lifted carrier 70. By providing the first positioning mechanism 50 and the second positioning mechanism 60, the product 71 is positioned to avoid the upper end of the product 71 colliding with the inner wall of the mesh 312, which causes the product 71 to be stuck with the mesh 312, so that when the carrier 70 descends, the product 71 can descend synchronously with the carrier 70.

[0048] The first positioning mechanism 50 is provided with a first positioning seat 51 and a third driving unit 52. The second positioning mechanism 60 is provided with a second positioning seat 61 and a fourth driving unit 62. The third driving unit 52 and the fourth driving unit 62 are both air cylinders. The first positioning seat 51 and the second positioning seat 61 are both slidably connected to the sliding seat 331 in the left-right direction. The third driving unit 52 drives the first positioning seat 51 to move closer to or away from the conveying groove 20. The fourth driving unit 62 drives the second positioning seat 61 to move closer to or away from the conveying groove 20. The first positioning seat 51 is provided with a first positioning plate 53, and the second positioning seat 61 is provided with a second positioning plate 63. The first positioning plate 53 and the second positioning plate 63 are both located between the conveying groove 20 and the solder paste seat 31. And on one side where the first positioning plate 53 and the second positioning plate 63 are adjacent, a plurality of positioning grooves 54 adapted to the product 71 are provided.

[0049] The first positioning plate 53 includes a plurality of positioning pieces 55 distributed in the front-rear direction. The positioning pieces 55 are slidably connected to the first positioning seat 51 in the left-right direction. The first positioning seat 51 is provided with buffer springs (not labeled) corresponding to the positioning pieces 55 one by one. The buffer springs make the positioning pieces 55 always have a tendency to extend in the direction close to the first positioning plate 53. The positioning grooves 54 are provided on the positioning pieces 55; the buffer springs are provided to make the positioning pieces have a buffering effect and avoid damaging the product.

[0050] It should be noted that the product 71 of the present utility model is a quartz crystal resonator, and can also be other electronic devices such as resistors and capacitors.

[0051] The working principle of the present utility model:

[0052] The conveying trough 20 conveys the carrier 70 carrying the product 71 forward. The material blocking rod 221 on the first material blocking assembly 22 blocks the carrier 70. The lifting mechanism 40 jacks up two adjacent carriers 70, so that the product 71 on the jacked-up carrier 70 extends upward into the mesh holes 312. At the same time, the material blocking rod 221 on the first material blocking assembly 22 retreats from the conveying trough 20. The first positioning mechanism 50 and the second positioning mechanism 60 position the product 71 on the jacked-up carrier 70. The solder scraping mechanism 30 scrapes the solder paste in the solder paste tank 311 through the mesh holes 312 onto the product 71. The lifting mechanism 40 drives the carrier 70 to move downward and reset. The product 71 follows the carrier 70 to move downward. At this time, the solder paste in the mesh holes 312 will adhere to the upper end of the product 71. The conveying mechanism drives the carrier 70 to continue moving forward. The material blocking rod 221 on the second material blocking assembly 23 blocks the carrier 70, so that the two front carriers 70 block the two rear carriers 70. At this time, the two blocked carriers 70 are just located directly above the lifting mechanism 40. The lifting mechanism 40 jacks up the two rear carriers 70, and at the same time the material blocking rod 221 on the second material blocking assembly 23 releases the two front carriers 70, and the above process is repeated.

[0053] In summary, the present utility model is provided with a conveying trough 20, a solder scraping mechanism 30, and a lifting mechanism 40 on the frame 10. The solder scraping mechanism 30 is composed of a solder paste seat 31, a solder scraping assembly 32, and a driving device 33. The solder paste tank 311 on the solder paste seat 31 is located directly above the conveying trough 20. A plurality of mesh holes 312 are arranged at intervals in the front-rear direction at the bottom of the solder paste tank 311. The solder scraping assembly 32 is arranged in the solder paste tank 311. During operation, first, the conveying mechanism conveys the carrier 70 carrying the product 71 to the lifting mechanism 40; then the lifting mechanism 40 jacks up two adjacent carriers 70 upward, so that the product 71 on the jacked-up carrier 70 extends upward into the mesh holes 312; then the driving device 33 drives the solder scraping assembly 32 to move back and forth, so that the solder scraping assembly 32 scrapes the solder paste from the mesh holes 312 onto the product 71. Finally, the lifting mechanism 40 drives the two adjacent carriers 70 and the product 71 on the carrier 70 to move downward synchronously, and the solder paste adhering to the product 71 moves downward with the product 71, realizing an automated production process of carrier 70 loading, carrier 70 jacking, product 71 solder scraping, and carrier 70 unloading. Adopting a double-station automated production method, the solder scraping operation can be performed on the products 71 on two carriers 70 at one time, and the solder scraping efficiency is higher.

[0054] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Therefore, any modifications, equivalent replacements, improvements, etc. made to the above embodiments according to the technical reality of the present utility model are still within the scope of the technical solutions of the present utility model.

Claims

1. A double-station tin scraping machine, characterized in that, It includes a frame, as well as a conveying trough, a solder scraping mechanism, and a lifting mechanism provided on the frame. The conveying trough is used for conveying carriers, and the carriers are used for carrying products. The solder scraping mechanism is provided with a solder paste seat, a solder scraping assembly, and a driving device. The solder paste seat is provided with a solder paste groove, and the solder paste groove is arranged directly above the conveying trough. The bottom of the solder paste groove is provided with a plurality of mesh holes spaced apart in the front-rear direction. The solder scraping assembly is arranged in the solder paste groove, and the driving device drives the solder scraping assembly to move back and forth in the solder paste groove. The lifting mechanism is arranged below the conveying trough, and the lifting mechanism can lift two adjacent carriers in the conveying trough upward, so that the products on the lifted carriers extend upward into the mesh holes.

2. The double-station tin scraping machine according to claim 1, wherein The solder scraping assembly includes a first scraper, a second scraper, a third scraper, and a fourth scraper. The first scraper, the third scraper, the second scraper, and the fourth scraper are arranged in the solder paste groove in sequence from front to back. The first scraper and the second scraper are both inclined forward from top to bottom, and the third scraper and the fourth scraper are both inclined backward from top to bottom. The driving device drives the first scraper, the second scraper, the third scraper, and the fourth scraper to move synchronously back and forth in the solder paste groove.

3. The double-station tin scraping machine according to claim 2, characterized in that, The driving end of the driving device is connected with a first tool holder, a second tool holder, a first lifting cylinder, and a second lifting cylinder. The first lifting cylinder can drive the first tool holder to move up and down, and the second lifting cylinder can drive the second tool holder to move up and down. The first scraper and the second scraper are both arranged on the first tool holder, and the third scraper and the fourth scraper are both arranged on the second tool holder.

4. The double-station tin scraping machine according to claim 3, characterized in that, The first tool holder is rotatably provided with a first rotating seat and a second rotating seat. The rotation axes of the first rotating seat and the second rotating seat both extend in the left-right direction. The first scraper is rotationally adjusted and installed on the first tool holder through the first rotating seat, and the second scraper is rotationally adjusted and installed on the first tool holder through the second rotating seat to adjust the inclination angles of the first scraper and the second scraper.

5. The double-station tin scraping machine according to claim 1, characterized in that, The solder scraping mechanism is also provided with a mounting frame rotatably connected to the frame. The rotation axis of the mounting frame extends in the front-rear direction. The solder paste seat, the solder scraping assembly, and the driving device are all arranged on the mounting frame.

6. The double-station tin scraping machine according to claim 1, characterized in that, The bottom of the solder paste groove is provided with two rows of mesh hole groups distributed in the front-rear direction. Each row of the mesh hole groups corresponds to one carrier, and each row of the mesh hole groups includes no less than ten mesh holes distributed in the front-rear direction.

7. The double-station tin scraping machine according to claim 1, characterized in that The mesh hole includes a first through groove and a second through groove. The solder paste groove, the first through groove, and the second through groove are communicated with each other in sequence from top to bottom. The width B1 of the second through groove < the width B2 of the product < the width B3 of the first through groove.

8. The double-station tin scraping machine according to claim 7, characterized in that, The bottom of the solder paste seat is provided with a detachable first mesh plate and a second mesh plate. The first through groove is arranged on the first mesh plate, and the second through groove is arranged on the second mesh plate.

9. The double-station tin scraping machine according to claim 1, wherein, The conveying trough extends in the front-rear direction. The outer side of the conveying trough is provided with a first material blocking assembly and a second material blocking assembly. The second material blocking assembly is arranged in front of the first material blocking assembly. The first material blocking assembly and the second material blocking assembly both include a material blocking rod and a material blocking driving unit. The material blocking driving unit drives the material blocking rod to extend into or withdraw from the conveying trough. The distance B4 between the two material blocking rods = twice the length B5 of the carrier in the front-rear direction.

10. The double-station tin scraping machine according to any one of claims 1-9, characterized in that Above the lifting mechanism, there are a first positioning mechanism and a second positioning mechanism. The first positioning mechanism and the second positioning mechanism are respectively arranged on the left and right sides of the conveying groove. The first positioning component and the second positioning component are used to position the products on the lifted carrier.

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