Ultrasonic continuous welding device for bottle caps

Abstract

The utility model discloses a bottle cap ultrasonic continuous welding device which comprises a working table, a rotary table and an ultrasonic welding mechanism, the rotary table is rotatably installed on the working table, the ultrasonic welding mechanism is installed on the working table, a plurality of positioning structures are arranged on the rotary table in an annular array mode, and a discharging mechanism is installed on one side of the working table. The discharging mechanism comprises a support and a deflector rod, the support is installed on the workbench, one end of the deflector rod is fixed to the support, and the other end of the deflector rod extends to the position above the rotating disc. The positioning structure is arranged on the rotating disc, so that the positioning structure can be conveniently matched with the ultrasonic welding mechanism to weld the bottle caps, and the welded bottle caps on the positioning structure can be conveniently pulled out through the discharging mechanism on the workbench. The utility model has the characteristics of simpler structure and strong practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle cap production and processing, in particular to an ultrasonic continuous welding device for bottle caps. Background Art

[0002] Currently, some liquor bottle caps have complex cap designs. Direct injection molding not only consumes a large amount of raw materials, but also results in uneven cooling of the plastic on the surface and inside the cap due to the thickness of the cap, which can easily cause the cap to deform. To address this issue, the current solution is to inject the cap into two parts, hollowing out the interior and achieving a uniform wall thickness. The two parts are then ultrasonically welded together.

[0003] Chinese patent document CN215903981U, published (announced) on February 25, 2022, discloses an integrated feeding, welding, and conveying device for bottle cap assembly disclosed by our company. The device includes a workbench equipped with a turntable and a sheave. A single-lane channel is fixed to the turntable, through which the bottle caps enter the sheave. A welding mechanism and a cap feeding mechanism are sequentially mounted on the outer side of the sheave. The welding mechanism includes an ultrasonic plastic welder, one side of which slides with a guide rail via a linear bearing, and the upper end of which is driven by a first cylinder for intermittent up and down movement. The device has the advantages of being suitable for feeding and partially assembling bottle caps with three components. Its disadvantages are that the entire feeding device is relatively complex in structure, and it is difficult to conveniently remove the welded bottle caps from the sheave. Utility Model Content

[0004] The present utility model aims to provide an ultrasonic continuous welding device for bottle caps. By providing a positioning structure on a turntable, the device not only facilitates the cooperation with the ultrasonic welding mechanism to weld the bottle caps, but also facilitates the removal of the welded bottle caps from the positioning structure through a feeding mechanism on a workbench. The overall device has a simpler structure and is highly practical.

[0005] To achieve the above-mentioned purpose, the utility model provides a bottle cap ultrasonic continuous welding device, comprising a workbench, a turntable and an ultrasonic welding mechanism. The turntable is rotatably installed on the workbench, the ultrasonic welding mechanism is installed on the workbench, a plurality of positioning structures are arranged in a circular array on the turntable, a blanking mechanism is installed on one side of the workbench, and the blanking mechanism includes a support and a lever. The support is installed on the workbench, one end of the lever is fixed on the support, and the other end extends above the turntable.

[0006] The positioning structure is a blind hole arranged on the turntable.

[0007] The positioning structure is a boss arranged on the turntable.

[0008] The ultrasonic welding mechanism includes a base plate, a vertical rod, a top plate, a guide rod, a sliding seat, a cylinder and an ultrasonic welding head. The two vertical rods are installed between the base plate and the top plate. Two guide rods are installed between the two vertical rods and between the base plate and the top plate. The sliding seat is slidably connected to the two guide rods. The cylinder is installed on the top plate. The piston rod of the cylinder is connected to the upper end of the sliding seat. The ultrasonic welding head is installed at the lower end of the sliding seat.

[0009] An adjustment plate is also installed on the lower side of the base plate, and a first long hole is provided on the adjustment plate in the front-to-back direction. A guide structure is provided between the adjustment plate and the base plate, and the base plate can slide left and right on the adjustment plate through the guide structure. A second long hole is provided on the base plate in the left and right direction, and the screw is inserted into the second long hole and screwed to the adjustment plate for fixation.

[0010] A limit seat is also installed on the sliding seat. The limit screw penetrates the limit seat longitudinally. The limit screw is respectively screwed and installed with limit nuts on the upper and lower sides of the limit seat.

[0011] The workbench is provided with a blanking guide groove on one side of the blanking mechanism.

[0012] Compared with the prior art, the present invention has the following technical effects:

[0013] The turntable of this utility model is equipped with multiple positioning structures in a circular array. A feeding mechanism is mounted on one side of the workbench. The feeding mechanism comprises a support and a lever. The support is mounted on the workbench, and one end of the lever is fixed to the support and the other end extends above the turntable. The positioning structures on the turntable not only facilitate the welding of bottle caps with the ultrasonic welding mechanism, but also enable the feeding mechanism on the workbench to conveniently eject bottle caps welded to the positioning structures. This utility model has a simpler structure and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art description:

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the top view of the structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the main structure of the ultrasonic welding mechanism of the utility model;

[0018] Figure 4 for Figure 3 Schematic diagram of the AA cross-section structure.

[0019] Reference numerals:

[0020] Workbench 10, material discharge guide trough 11;

[0021] Turntable 20, positioning structure 21;

[0022] Ultrasonic welding mechanism 30, adjustment plate 31, first long hole 311, guide structure 312, bottom plate 32, second long hole 321, vertical rod 33, top plate 34, guide rod 35, sliding seat 36, cylinder 37, ultrasonic welding head 38, limiting seat 39, limiting screw 39, limiting nut 392;

[0023] Unloading mechanism 40, support 41, and shifting rod 42. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0025] Example 1:

[0026] See Figure 1-4 A bottle cap ultrasonic continuous welding device includes a workbench 10, a turntable 20, and an ultrasonic welding mechanism 30. The turntable 20 is rotatably mounted on the workbench 10, and the ultrasonic welding mechanism 30 is mounted on the workbench 10. A plurality of positioning structures 21 are arranged in a circular array on the turntable 20. A blanking mechanism 40 is mounted on one side of the workbench 10. The blanking mechanism 40 includes a support 41 and a lever 42. The support 41 is mounted on the workbench 10. One end of the lever 42 is fixed to the support 41 and the other end extends above the turntable 20. The provision of the positioning structures 21 on the turntable 20 not only facilitates the cooperation with the ultrasonic welding mechanism 30 for welding the bottle caps, but also allows the bottle caps welded on the positioning structures to be conveniently removed by the blanking mechanism 40 on the workbench.

[0027] In this embodiment, see Figure 2 The support 41 is mounted on the workbench 10 by a bolt to facilitate the rotation and adjustment of the angle of the lever 42.

[0028] A reduction motor is installed inside the workbench 10, and the turntable 20 is installed on the output shaft of the reduction motor. The ultrasonic welding mechanism 30 can adopt the welding mechanism in CN215903981U.

[0029] In one embodiment, the positioning structure 21 is a blind hole provided on the turntable 20. Specifically, the blind hole has a depth of about 2-5 mm and is slightly larger than the outer diameter of the bottom of the bottle cap, so as to facilitate the removal of the bottle cap by the lever 42.

[0030] Furthermore, the blind hole may adopt a tapered hole structure with a larger upper portion and a smaller lower portion, so as to facilitate removing the bottle cap by the lever 42 .

[0031] In another embodiment, the positioning structure 21 is a boss provided on the turntable 20. Specifically, the height of the boss is 2-5 mm, and the size of the boss is slightly smaller than the inner diameter of the bottom of the bottle cap, so that the bottle cap can be easily removed by the lever 42.

[0032] Furthermore, the boss may adopt a frustum structure with a smaller top and a larger bottom, which makes it easier to push the bottle cap out by the push rod 42 .

[0033] Example 2:

[0034] In this embodiment, see Figure 2 、 3 The ultrasonic welding mechanism 30 includes a base plate 32, vertical rods 33, a top plate 34, guide rods 35, a sliding seat 36, a cylinder 37, and an ultrasonic welding head 38. Two vertical rods 33 are mounted between the base plate 32 and the top plate 34. Two guide rods 35 are mounted between the two vertical rods 33 and between the base plate 32 and the top plate 34. The sliding seat 36 is slidably connected to the two guide rods 35. The cylinder 37 is mounted on the top plate 34. The piston rod of the cylinder 37 is connected to the upper end of the sliding seat 36, and the ultrasonic welding head 38 is mounted at the lower end of the sliding seat 36. With this structure, when the piston rod of the cylinder 37 is extended or retracted, the sliding seat 36 moves back and forth along the guide rods 35, thereby driving the ultrasonic welding head 38 to move up and down. In this embodiment, the ultrasonic welding head 38 adopts existing technology.

[0035] Specifically, a guide sleeve is installed on the sliding seat 36 , and the guide sleeve is connected to the guide rod 35 in a sliding fit.

[0036] For further information, see Figure 2 、 3 4. An adjustment plate 31 is also mounted on the underside of the base plate 32. A first elongated hole 311 is provided in the adjustment plate 31 along the front-to-back direction. A guide structure 312 is provided between the adjustment plate 31 and the base plate 32. The guide structure 312 allows the base plate 32 to slide left and right on the adjustment plate 31. A second elongated hole 321 is provided in the base plate 32 along the left-to-right direction. Screws are inserted into the second elongated hole 321 and screwed into the adjustment plate 31 to secure the screws. The first elongated hole 311 in the adjustment plate 31 allows the position of the ultrasonic welding mechanism 30 to be adjusted forward and backward. The base plate 32 can also slide left and right on the adjustment plate 31 via the guide structure 312. After the position is adjusted, all screws are tightened.

[0037] See also Figure 4In this embodiment, the guide structure 312 includes a protrusion on the adjustment plate 31 and a groove provided on the underside of the base plate 32, wherein the groove and the protrusion slide in cooperation. Of course, the guide structure 312 may also adopt other structures, such as a structure in which a dovetail guide groove and a dovetail slider cooperate.

[0038] Further, see Figure 4 A limit seat 39 is also mounted on the sliding seat 36. A limit screw 391 is longitudinally inserted into the limit seat 39. A limit nut 392 is screwed onto the limit screw 391 at the upper and lower sides of the limit seat 39. By providing the limit screw 391, the lowest position of the sliding seat 36 is limited.

[0039] See also Figure 1 、 2 A feeding guide groove 11 is provided on the workbench 10 at one side of the feeding mechanism 40 to facilitate the collection of the bottle caps.

[0040] The working principle or action process of the utility model is as follows:

[0041] See also Figure 2 During use, the bottle cap to be welded is placed on the positioning structure 21 on the discharge side, and the turntable 20 rotates in a step-by-step manner. When the bottle cap to be welded is located below the ultrasonic welding head 38 of the ultrasonic welding mechanism 30, the turntable 20 stops rotating, the piston rod of the cylinder 37 extends, and the sliding seat 36 moves downward along the guide rod 35, thereby driving the ultrasonic welding head 38 downward to abut the bottle cap and perform ultrasonic welding. After welding, the piston rod of the cylinder 37 retracts, the turntable 20 rotates, and the next bottle cap is welded.

[0042] When the welded bottle caps abut against the shifting rod 42 , the shifting rod 42 pushes the bottle caps out of the positioning structure 21 , and the bottle caps roll down to the unloading guide chute 11 to be collected or enter the next process.

Claims

1. A bottle cap ultrasonic continuous welding device, comprising a workbench (10), a turntable (20) and an ultrasonic welding mechanism (30), wherein the turntable (20) is rotatably mounted on the workbench (10), and the ultrasonic welding mechanism (30) is mounted on the workbench (10), characterized in that: A plurality of positioning structures (21) are provided in a circular array on the turntable (20), and a blanking mechanism (40) is installed on one side of the workbench (10). The blanking mechanism (40) includes a support (41) and a shifting rod (42). The support (41) is installed on the workbench (10), and one end of the shifting rod (42) is fixed on the support (41), and the other end extends above the turntable (20).

2. The bottle cap ultrasonic continuous welding device according to claim 1, characterized in that: The positioning structure (21) is a blind hole provided on the turntable (20).

3. The bottle cap ultrasonic continuous welding device according to claim 1, characterized in that: The positioning structure (21) is a boss provided on the turntable (20).

4. The bottle cap ultrasonic continuous welding device according to claim 1, characterized in that: The ultrasonic welding mechanism (30) includes a bottom plate (32), a vertical rod (33), a top plate (34), a guide rod (35), a sliding seat (36), a cylinder (37) and an ultrasonic welding head (38), wherein the two vertical rods (33) are installed between the bottom plate (32) and the top plate (34), two guide rods (35) are installed between the two vertical rods (33) and between the bottom plate (32) and the top plate (34), the sliding seat (36) is connected to the two guide rods (35) in a sliding manner, the cylinder (37) is installed on the top plate (34), the piston rod of the cylinder (37) is connected to the upper end of the sliding seat (36), and the ultrasonic welding head (38) is installed at the lower end of the sliding seat (36).

5. The bottle cap ultrasonic continuous welding device according to claim 4, characterized in that: An adjustment plate (31) is further installed on the lower side of the base plate (32). A first long hole (311) is provided on the adjustment plate (31) along the front-to-back direction. A guide structure (312) is provided between the adjustment plate (31) and the base plate (32). The base plate (32) can slide left and right on the adjustment plate (31) through the guide structure (312). A second long hole (321) is provided on the base plate (32) along the left-to-right direction. A screw is inserted into the second long hole (321) and is screwed and fixed to the adjustment plate (31).

6. The bottle cap ultrasonic continuous welding device according to claim 4, characterized in that: A limit seat (39) is also installed on the sliding seat (36). A limit screw (391) longitudinally penetrates the limit seat (39). The limit screw (391) is screwed and installed with limit nuts (392) on the upper and lower sides of the limit seat (39).

7. The bottle cap ultrasonic continuous welding device according to claim 1, characterized in that: A material discharge guide groove (11) is provided on the workbench (10) at one side of the material discharge mechanism (40).

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