Glue wiping and needle aligning integrated mechanism

Abstract

The utility model relates to the technical field of needle type dispensing equipment, in particular to a frictioning and needle aligning integrated mechanism which comprises a frictioning structure and a dispensing needle, the frictioning structure comprises two clamping blocks capable of clamping a needle of the dispensing needle in a matched mode, a sliding block fixed to the clamping blocks and a clamping air cylinder driving the sliding block to move, a glue wiping belt for wiping glue is arranged between the two clamping blocks; the device further comprises a base, the base is located at the bottom of the frictioning structure, a driving motor is fixedly arranged on the base, the output end of the driving motor is fixedly connected with a frictioning tape retracting and releasing structure, a three-way needle aligning platform is movably arranged on the base, and a three-way telescopic electric cylinder set is arranged on the outer wall of the base. Through the arrangement of the three-way needle aligning platform, the position of a dispensing needle above the platform is observed, and the three-way telescopic electric cylinder group on the outer wall of the base drives the three-way needle aligning platform and the dispensing needle to align to a proper position between the clamping blocks, so that the dispensing needle aligning device is suitable for dispensing needles with different diameter lengths and different needle lengths, and is high in universality.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of needle-type glue dispensing equipment, in particular to a glue-wiping and needle-aligning integrated mechanism. Background Art

[0002] ] The widely used glue dispensing machines, especially the smaller ones, do not have glue wiping devices. They all use the traditional manual method to wipe the needle. It is impossible to wipe the needle every time it works. Since the glue is relatively viscous, there will be a wire drawing phenomenon. If it is not wiped, it will contaminate the next workpiece, so it is necessary to manually wipe the glue stains on the workpiece. This requires a lot of manpower and material resources. When the needle is cleaned manually, the needle will be deformed due to the worker's improper operation, and damage to the needle will also change the glue trajectory.

[0003] The prior art includes two clamping surfaces that can cooperate to clamp the needle to be erased, and an erase tape for erasing glue is provided between the two clamping surfaces, and the erase tape corresponds to the clamping surfaces one by one, and also includes a driving part for controlling the movement of the clamping surface to make the erase tape fit. The needle is clamped between the erase tapes through the clamping surfaces, and the clamping surfaces exert uniform force on the needle, the needle is not easy to deform, and the erase tape completely wraps the needle, so that the eraser device is suitable for short needles and glue with high viscosity. However, it needs to rely on manual or external robotic arms to insert the dispensing needle into the clamping surface, and the manual operation has large errors and low efficiency. The external robotic arm can generally only perform preset needle control on needles of a single length, and its versatility is poor. Utility Model Content

[0004] In view of the above-mentioned problems existing in the prior art, the purpose of the utility model is to provide an integrated glue wiper and needle alignment mechanism, which can automatically adjust the needle position of various types of dispensing needles, so that the clamping block can fully clamp the glue wiper on the needle head, thereby improving versatility.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an integrated glue-erasing and needle-aligning mechanism, including a glue-erasing structure and a glue-dispensing needle, the glue-erasing structure including two clamping blocks that can cooperate to clamp the needle head of the glue-dispensing needle, a slider fixed to the clamping block and a clamping cylinder that drives the slider to move, and an eraser tape for erasing glue is provided between the two clamping blocks; it also includes a base, the base is located at the bottom of the glue-erasing structure, a driving motor is fixedly provided on the base, the output end of the driving motor is fixedly connected to a glue-erasing tape retracting and releasing structure, a three-way needle-aligning platform is movably provided on the base, and a three-way telescopic electric cylinder group is provided on the outer wall of the base.

[0006] Preferably, the adhesive tape retracting and releasing structure includes a tape unwinding roller, an outer side wall of the tape unwinding roller protrudes outward to form a first clamping strip, a second clamping strip is axially arranged on the first clamping strip, and a radial cross-sectional profile range of the second clamping strip does not exceed the first clamping strip, one end of the tape unwinding roller is axially sleeved with a first limiting ring, a second limiting ring and a top cover, a clamping groove matching the first clamping strip and the second clamping strip is opened at the inner diameter position of the first limiting ring, the first limiting ring is tightly against the first clamping strip, the second limiting ring is tightly against the second clamping strip, and the top cover is tightly against the top end of the tape unwinding roller, and the other end of the tape unwinding roller is fixed to the output end of the driving motor, and the limiting ring and the top cover are axially fixed to the tape unwinding roller to limit the axial movement of the adhesive tape from the tape unwinding roller.

[0007] Furthermore, the wipe tape retracting and releasing structure also includes a take-up roller, which is different from the unwinding roller and is rotatably connected to a connecting shaft at one end away from the top cover. The unwinding roller and the take-up roller are respectively fixed to the two ends of the wipe tape, and drive the wipe tape to move continuously between the two clamping blocks. The wipe tape that has completed the wiping operation is recovered by the setting of the take-up roller.

[0008] Preferably, a protective shell is provided on the outside of the driving motor and the clamping cylinder, and a support frame is fixed between the protective shell and the base, so that the motor or the cylinder is fully wrapped and protected when wiping glue through the protective shell and the support frame.

[0009] Furthermore, a button is formed on the outer wall of the driving motor, and a hole is opened on the surface of the protective shell at a position corresponding to the button to expose the button, and the driving motor can be started and stopped by external control through the button.

[0010] Preferably, the three-way needle alignment platform includes a platform body, which is a C-shaped structure, and a plurality of pin holes with different diameters are formed on the top of the platform body, and an elastic ring is axially arranged in any one of the pin holes, and the dispensing needle is located on any one of the pin holes, and the dispensing needle is inserted into the pin hole, and the inclined surface of the front end of the needle tube squeezes the elastic ring radially outward, and a sensor is fixed on the top of the platform body to sense the stretched state of the elastic ring, and a sensor sheet is fixed on the front end of the dispensing needle, and a sensor for detecting the axial position of the sensor sheet is inserted on the top of the platform body, and a main control box is fixed in the platform body, and the position of the sensor sheet at the front end of the dispensing needle is identified in XYZ directions through the three-way needle alignment platform.

[0011] Furthermore, a glue removal cup is inserted into the upper end of the platform body, and the glue removal cup facilitates manual glue removal before wiping the glue.

[0012] Furthermore, a movable groove is formed on the base, and a sliding plate is provided on the movable groove so as to slide freely in the horizontal direction. The sliding plate is an L-shaped plate, and a spring is fixed to the top end of the sliding plate. The other end of the spring is fixedly connected to the bottom of the platform body. Through the structural setting of the sliding plate, the three-way needle platform can perform XYZ three-way movement relative to the eraser structure.

[0013] Furthermore, the three-way telescopic electric cylinder group includes an electric cylinder fixing frame and an electric cylinder sliding groove, the electric cylinder fixing frame and the electric cylinder sliding groove are located on two mutually perpendicular side outer walls of the base, the electric cylinder fixing frame is a C-shaped structure, an X-direction telescopic electric cylinder is fixed in the electric cylinder fixing frame, the telescopic end of the X-direction telescopic electric cylinder is fixed to one side outer wall of the sliding plate, a Z-direction telescopic electric cylinder is fixed on the top of the electric cylinder fixing frame, the telescopic end of the Z-direction telescopic electric cylinder is fixed to the bottom of the platform body, a Y-direction telescopic electric cylinder is slotted on the top of the electric cylinder sliding groove and slidably provided, the telescopic end of the Y-direction telescopic electric cylinder is fixed to one side outer wall of the sliding plate, and the sliding plate is driven by the three-way telescopic electric cylinder group to perform XYZ three-way movement.

[0014] Preferably, a tensioning structure is provided on the moving path of the wipe tape, and the tensioning structure includes a first tensioning rod, a second tensioning rod and a third tensioning rod. The first tensioning rod and the second tensioning rod are located between the wipe tape retracting structure and the wiper structure, and the third tensioning rod is located on the side of the wiper structure away from the wipe tape retracting structure. The tensioning rod provides a fixed point for the retracting process of the wipe tape to prevent the wipe tape from curling.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The elastic ring and sensor settings on the three-way needle alignment platform are used to detect the horizontal positions of the dispensing needles at different insertion positions, and the vertical positions of the dispensing needles at different insertion positions are detected through the induction sheet and sensor settings. The three-way needle alignment platform and the dispensing needle are driven to the appropriate position between the clamping block through the three-way telescopic electric cylinder group on the outer wall of the base, so that the clamping block can fully clamp the needle head to facilitate glue wiping. It is suitable for dispensing needles with different diameters and needle lengths and has strong versatility.

[0017] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present invention and other related contents, and shall not be considered as limitations of the present invention.

[0019] In the drawings of the specification:

[0020] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the utility model from a cross-sectional perspective;

[0022] Figure 3 It is a top view of the overall structure of the utility model;

[0023] Figure 4 It is an exploded schematic diagram of the wipe tape retracting and releasing structure of the utility model;

[0024] Figure 5 This is an exploded schematic diagram of the three-way needle alignment platform structure of the utility model;

[0025] Reference numerals:

[0026] 1. Base; 11. Movable groove; 12. Sliding plate; 2. Support frame; 3. Protective shell; 4. Rubber tape retracting and releasing structure; 41. Tape unwinding roller; 42. Tape rewinding roller; 43. First clamping strip; 44. Second clamping strip; 45. First limiting ring; 46. Clamping groove; 47. Second limiting ring; 48. Top cover; 49. Connecting shaft; 5. Rubber tape structure; 51. Clamping cylinder; 52. Sliding block; 53. Clamping block; 7. Driving motor; 7 1. Button; 8. Three-way needle alignment platform; 81. Platform body; 82. Spring; 83. Pin hole; 84. Elastic ring; 85. Sensor; 86. Glue removal cup; 87. Sensor; 88. Main control box; 9. Glue dispensing needle; 91. Sensor sheet; 10. Three-way telescopic electric cylinder group; 101. Y-axis telescopic electric cylinder; 102. X-axis telescopic electric cylinder; 103. Z-axis telescopic electric cylinder; 104. Electric cylinder fixing bracket; 105. Electric cylinder sliding groove. DETAILED DESCRIPTION Example 1

[0027] like Figures 1 to 5 As shown, a glue erasing needle integrated mechanism includes a glue erasing structure 5 and a glue dispensing needle 9, wherein the glue erasing structure 5 includes two clamping blocks 53 capable of cooperating to clamp the needle head of the glue dispensing needle 9, a slider 52 fixed to the clamping block 53, and a clamping cylinder 51 for driving the slider 52 to move, and an eraser tape for erasing glue is provided between the two clamping blocks 53; and further includes a base 1, wherein the base 1 is located at the bottom of the glue erasing structure 5, a driving motor 7 is fixedly provided on the base 1, and an eraser tape retracting and releasing structure 4 is fixedly connected to the output end of the driving motor 7, a three-way needle alignment platform 8 is movably provided on the base 1, and a three-way telescopic electric cylinder group 10 is provided on the outer wall of the base 1,

[0028] The wipe tape retracting structure 4 includes a tape unwinding roller 41, the outer side wall of the tape unwinding roller 41 protrudes outward to form a first clamping strip 43, a second clamping strip 44 is axially arranged on the first clamping strip 43, and the radial cross-sectional profile range of the second clamping strip 44 does not exceed the first clamping strip 43, one end of the tape unwinding roller 41 is axially sleeved with a first limiting ring 45, a second limiting ring 47 and a top cover 48 in sequence, the first limiting ring 45 has a clamping groove 46 that matches the first clamping strip 43 and the second clamping strip 44 at the inner diameter position, the first limiting ring 45 is tightly against the first clamping strip 43, so that The second limiting ring 47 is tightly against the second clamping strip 44, and the top cover 48 is tightly against the top of the unwinding roller 41. The other end of the unwinding roller 41 is fixed to the output end of the driving motor 7; the rubber tape retracting structure 4 also includes a retracting roller 42, which is different from the unwinding roller 41. The end of the retracting roller 42 away from the top cover 48 is rotatably connected to a connecting shaft 49. The unwinding roller 41 and the retracting roller 42 are respectively fixed to the two ends of the rubber tape, and drive the rubber tape to move continuously between the two clamping blocks 53. The rubber tape wiping operation is retracted and released by setting the unwinding roller 41 and the retracting roller 42.

[0029] A tensioning structure 6 is provided on the moving path of the rubber tape, and the tensioning structure 6 includes a first tensioning rod 61, a second tensioning rod 62 and a third tensioning rod 63. The first tensioning rod 61 and the second tensioning rod 62 are located between the rubber tape retracting and releasing structure 4 and the rubber tape structure 5. More specifically, the first tensioning rod 61 is located near the unwinding roller 41, the second tensioning rod 62 is located near the rewinding roller 42, and the third tensioning rod 63 is located on the side of the rubber tape structure 5 away from the rubber tape retracting and releasing structure 4. After the rubber tape extends from the unwinding roller 41, it passes through the first tensioning rod 61, between the two clamping blocks 53, the third tensioning rod 63 and the second tensioning rod 62 in sequence and finally reaches the rewinding roller 42. The rubber tape is not easy to curl during the rewinding and releasing process.

[0030] A protective shell 3 is provided on the outside of the driving motor 7 and the clamping cylinder 51, and the protective shell 3 fully wraps the driving motor 7 and the clamping cylinder 51. A support frame 2 is bolted between the protective shell 3 and the base 1. The support frame 2 is an L-shaped frame, and its L-shaped vertical axis is fixedly connected to the protective shell 3, and its L-shaped horizontal axis is fixedly connected to the base 1. A button 71 is formed on the outer wall of the driving motor 7, and the button 71 controls the start and stop of the driving motor 7. A hole is opened at a position on the surface of the protective shell 3 corresponding to the button 71 to expose the button 71.

[0031] The three-way needle alignment platform 8 includes a platform body 81, which is a C-shaped structure. The top of the platform body 81 forms three pin holes 83 that are equidistantly arranged from the inside to the outside and whose diameters are successively decreasing. An elastic ring 84 that matches the diameter of any pin hole 83 is axially arranged in the inside. The dispensing needle 9 is located on any pin hole 83. The dispensing needle 9 is inserted into the pin hole 83, and the front end slope of the needle tube squeezes the elastic ring 84 radially outward. The top of the platform body 81 is fixed with a sensor 87 to The sensing elastic ring 84 is in a stretched state, and the sensor 87 is preferably a tension sensor. A sensing sheet 91 is fixed to the front end of the dispensing needle 9, and a sensor 85 for detecting the axial position of the sensing sheet 91 is inserted on the top of the platform body 81. The sensor 85 is preferably an optical sensor, and the sensing sheet 91 is preferably a photosensitive material. A main control box 88 is fixed in the platform body 81, and the main control box 88 is electrically connected to the sensor 85 and the sensor 87. A glue removal cup 86 is also inserted at the upper end of the platform body 81.

[0032] A movable groove 11 is formed on the base 1, and a first magnetic plate is fixed on the movable groove 11. A second magnetic plate is magnetically arranged on the first magnetic plate, and a sliding plate 12 is fixed on the second magnetic plate. The sliding plate 12 is freely moved in a horizontal direction relative to the movable groove 11 through the first magnetic plate and the second magnetic plate, and the sliding plate 12 is not easily tilted due to external force under magnetic fixation. The sliding plate is an L-shaped plate, and a spring 82 is fixed on the top of the sliding plate 12, and the other end of the spring 82 is fixedly connected to the bottom of the platform body 81.

[0033] The three-way telescopic electric cylinder group 10 includes an electric cylinder fixing frame 104 and an electric cylinder sliding groove 105. The electric cylinder fixing frame 104 is fixed on the right outer wall of the base 1. The electric cylinder fixing frame 104 is a C-shaped structure. An X-direction telescopic electric cylinder 102 is fixed inside the electric cylinder fixing frame 104. The telescopic end of the X-direction telescopic electric cylinder 102 is fixed to the right outer wall of the sliding plate 12. A Z-direction telescopic electric cylinder 103 is fixed on the top of the electric cylinder fixing frame 104. The telescopic end of the Z-direction telescopic electric cylinder 103 is fixed to the bottom of the platform body 81. The electric cylinder sliding groove 105 is fixed on the back outer wall of the base 1. The top of the electric cylinder sliding groove 105 is grooved and slidably provided with a Y-direction telescopic electric cylinder 101. The telescopic end of the Y-direction telescopic electric cylinder 101 is fixed to the back outer wall of the sliding plate 12.

[0034] The implementation principle of Example 1 of the present application is as follows: when the mechanism is used, first, according to the residual amount of glue in the dispensing needle 9, the dispensing needle 9 can be selectively placed above the glue discharge cup 86 for preliminary glue discharge, and then the needle alignment operation is performed, the dispensing needle 9 is inserted into a pin hole 83 according to the length of its needle tube diameter, the elastic ring 84 is squeezed and stretched by the force and sensed by the sensor 87, and the sensor sends the horizontal XY coordinate position of the pin hole 83 to the main control box 88, and at the same time, the position of the sensor sheet 91 at the front end of the dispensing needle 9 after axial movement is sensed by the sensor 85, and the sensor sends the vertical Z direction of the sensor sheet 91 to the main control box 88. The coordinate position is sent to the main control box 88, and the main control box 88 controls the three-way telescopic electric cylinder group 10 to drive the sliding plate 12 to move in the XY direction, and drives the platform body to move in the Z direction, so that the needle head of the dispensing needle 9 can be exactly located between the two clamping blocks 53; after the needle is aligned, the drive motor 7 is started to make the tape release roller 41 release the wiping tape, and the wiping tape passes between the two clamping blocks 53 and fully contacts the needle head of the dispensing needle 9 to achieve wiping. After wiping, the wiping tape enters the take-up roller 42 for winding and fixing. It can be compatible with the alignment of various different models of dispensing needles 9, has strong versatility and high wiping efficiency.

[0035] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the basic features of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A glue erasing and needle-to-needle integrated mechanism, comprising a glue erasing structure (5) and a glue dispensing needle (9), wherein the glue erasing structure (5) comprises two clamping blocks (53) capable of cooperating to clamp the needle head of the glue dispensing needle (9), a slider (52) fixed to the clamping blocks (53), and a clamping cylinder (51) for driving the slider (52) to move, and an eraser tape for erasing glue is provided between the two clamping blocks (53), characterized in that: The device further comprises a base (1), wherein the base (1) is located at the bottom of the eraser structure (5), a drive motor (7) is fixedly arranged on the base (1), an output end of the drive motor (7) is fixedly connected to the eraser tape retracting and releasing structure (4), a three-way needle alignment platform (8) is movably arranged on the base (1), and a three-way telescopic electric cylinder group (10) is arranged on the outer wall of the base (1).

2. The eraser-needle integrated mechanism according to claim 1, characterized in that: The wipe tape retracting and releasing structure (4) comprises a tape unwinding roller (41), the outer side wall of the tape unwinding roller (41) protrudes outward to form a first clamping strip (43), a second clamping strip (44) is axially arranged on the first clamping strip (43), and the radial cross-sectional profile range of the second clamping strip (44) does not exceed the first clamping strip (43), one end of the tape unwinding roller (41) is axially sleeved with a first limiting ring (45), a second limiting ring (47) and a top cover (48) in sequence, the first limiting ring (45) having an inner diameter position provided with a clamping groove (46) that matches the first clamping strip (43) and the second clamping strip (44), the first limiting ring (45) is tightly against the first clamping strip (43), the second limiting ring (47) is tightly against the second clamping strip (44), the top cover (48) is tightly against the top end of the tape unwinding roller (41), and the other end of the tape unwinding roller (41) is fixed to the output end of the driving motor (7).

3. The eraser-needle integrated mechanism according to claim 2, characterized in that: The wipe tape retracting and unreeling structure (4) further comprises a take-up roller (42), which is different from the unreeling roller (41), and has an end thereof which is rotatably connected to a connecting shaft (49) away from the top cover (48). The unreeling roller (41) and the take-up roller (42) are respectively fixed to the two ends of the wipe tape, and drive the wipe tape to move continuously between the two clamping blocks (53).

4. The eraser-needle integrated mechanism according to claim 1, characterized in that: A protective shell (3) is provided outside the driving motor (7) and the clamping cylinder (51), and a support frame (2) is fixed between the protective shell (3) and the base (1).

5. The eraser-needle integrated mechanism according to claim 4, characterized in that: A button (71) is formed on the outer wall of the driving motor (7), and a hole is opened at a position on the surface of the protective shell (3) corresponding to the button (71) to expose the button (71).

6. The eraser-needle integrated mechanism according to claim 1, characterized in that: The three-way needle alignment platform (8) comprises a platform body (81), the platform body (81) being a C-shaped structure, a plurality of pin holes (83) of different diameters being formed on the top of the platform body (81), an elastic ring (84) being axially arranged in any of the pin holes (83), the dispensing needle (9) being located on any of the pin holes (83), the dispensing needle (9) being inserted into the pin hole (83), the front end inclined surface of the needle tube of which presses the elastic ring (84) radially outwardly, a sensor (87) being fixed on the top of the platform body (81) for sensing the stretched state of the elastic ring (84), a sensor sheet (91) being fixed on the front end of the dispensing needle (9), a sensor (85) for detecting the axial position of the sensor sheet (91) being inserted into the top of the platform body (81), and a main control box (88) being fixed in the platform body (81).

7. The eraser-needle integrated mechanism according to claim 6, characterized in that: A glue removal cup (86) is also inserted into the upper end of the platform body (81).

8. The eraser-needle integrated mechanism according to claim 6, characterized in that: A movable groove (11) is formed on the base (1), and a sliding plate (12) is provided on the movable groove (11) so as to slide freely in a horizontal direction. The sliding plate (12) is an L-shaped plate, and a spring (82) is fixed to the top end of the sliding plate (12), and the other end of the spring (82) is fixedly connected to the bottom of the platform body (81).

9. The eraser-needle integrated mechanism according to claim 8, characterized in that: The three-way telescopic electric cylinder group (10) comprises an electric cylinder fixing frame (104) and an electric cylinder sliding groove (105). The electric cylinder fixing frame (104) and the electric cylinder sliding groove (105) are located on two mutually perpendicular side outer walls of the base (1). The electric cylinder fixing frame (104) is a C-shaped structure. An X-direction telescopic electric cylinder (102) is fixed inside the electric cylinder fixing frame (104). The telescopic end of the X-direction telescopic electric cylinder (102) is fixed to an outer wall of one side of a sliding plate (12). A Z-direction telescopic electric cylinder (103) is fixed to the top of the electric cylinder fixing frame (104). The telescopic end of the Z-direction telescopic electric cylinder (103) is fixed to the bottom of the platform body (81). A Y-direction telescopic electric cylinder (101) is slotted at the top of the electric cylinder sliding groove (105) and is slidably provided thereon. The telescopic end of the Y-direction telescopic electric cylinder (101) is fixed to an outer wall of one side of the sliding plate (12).

10. The eraser-needle integrated mechanism according to claim 1, characterized in that: A tensioning structure (6) is provided on the moving path of the wipe tape, and the tensioning structure (6) comprises a first tensioning rod (61), a second tensioning rod (62) and a third tensioning rod (63), wherein the first tensioning rod (61) and the second tensioning rod (62) are located between the wipe tape retracting structure (4) and the wipe tape structure (5), and the third tensioning rod (63) is located on a side of the wipe tape structure (5) away from the wipe tape retracting structure (4).

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