Automatic capping machine

Abstract

The utility model relates to the technical field of packaging equipment, and discloses an automatic capping machine which comprises a turntable capable of actively rotating, a plurality of liftable capping components distributed along the circumferential direction are arranged on the turntable, a gas distribution ring rotating synchronously with the turntable is arranged on the upper side of the turntable, and a plurality of gas distribution holes uniformly distributed along the circumferential direction are formed in the gas distribution ring. The lower ends of the air distribution holes are in one-to-one correspondence connection with the gland assemblies through flow guide pipes; a static flow guide seat is arranged on the upper side of the turntable, an annular flow guide groove is formed in the lower side of the flow guide seat, and a main air pipe communicated with the annular flow guide groove is arranged on the flow guide seat; a static gas distribution ring is arranged in the annular flow guide groove, the lower end face of the gas distribution ring abuts against the upper end face of the gas distribution ring, a gas distribution channel is formed in the gas distribution ring, the upper end of the gas distribution channel is communicated with the annular flow guide groove, and the lower end of the gas distribution channel is communicated with gas distribution holes in a preset area. The cover suction device has the advantages of being short in vacuumizing response time and more stable in cover suction.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging equipment, in particular to an automatic capping machine. Background Art

[0002] A capping machine is a mechanical device that presses the bottle cap assembly onto the bottleneck of a bottle. For example, common soy sauce bottles and vinegar bottles, etc., have bottle bodies that are usually made of glass, while the bottle cap assembly is a plastic part. The bottle cap assembly is pressed onto the bottleneck of the bottle body.

[0003] The multiple capping assemblies on the capping machine pneumatically suck the cap body, and the capping assemblies rotate and descend in a preset order under the action of the cam disc to press the cap body on the bottleneck in turn. Each capping assembly needs to be connected through an air pipe, and a vacuum suction nozzle is set at the lower end of the capping assembly to suck the bottle cap by negative pressure; for example, the patent with patent number ZL2019104223355 discloses a vacuum suction capping machine, in which a vacuum pumping device is arranged at the bottom, and a vacuum distributor is arranged at the bottom of the turntable, and the capping assembly is arranged at the upper end of the turntable. The vacuum distributor is connected to the capping assembly through a pipeline. Since the axial length of the turntable is very large, the pipeline between the vacuum distributor and the capping assembly needs to be set very long, and the pipeline is usually a hose, which leads to a decrease in the vacuum suction efficiency at the vacuum suction nozzle on the capping assembly, and the stability of the capping assembly sucking the cap body is poor. During the process of the capping assembly sucking the cap body, the cap body is easy to tilt or fall, thereby affecting the capping quality. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the utility model provides an automatic capping machine with short vacuum response time and more stable cap suction.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An automatic capping machine comprises an actively rotatable turntable, the turntable is provided with a plurality of circumferentially distributed and liftable capping assemblies, the upper side of the turntable is provided with an air distribution ring which rotates synchronously with the turntable, the air distribution ring is provided with a plurality of air distribution holes evenly distributed along the circumference, the lower ends of the air distribution holes are connected one-to-one with the capping assemblies through air guide pipes; a stationary air guide seat is provided on the upper side of the turntable, an annular air guide groove is provided on the lower side of the air guide seat, a main air pipe connected with the annular air guide groove is provided on the air guide seat; a stationary air distribution ring is provided in the annular air guide groove, the lower end face of the air distribution ring abuts against the upper end face of the air distribution ring, an air distribution channel is provided on the air distribution ring, the upper end of the air distribution channel is connected with the annular air guide groove, and the lower end of the air distribution channel is connected with the air distribution holes in a preset area.

[0007] The air distribution ring, air distribution ring and guide seat are arranged in the upper area of ​​the turntable, and the main air pipe, annular guide groove, air distribution channel and air distribution hole are connected in sequence, so that the vacuumization of each capping assembly is achieved through the main air pipe, and the overall structure is compact and stable; the position of the air distribution pipe is close to the capping assembly, the length of the guide pipe is short, the vacuumization response time is short, and the vacuum adsorption of the bottle cap by the capping assembly is more stable.

[0008] Preferably, the gas distribution channel includes an arc groove provided at the bottom of the gas distribution ring, and a plurality of gas distribution holes penetrating the arc groove, and the upper ends of the gas distribution holes are connected to the annular guide groove. The air distribution holes corresponding to the arc groove are used for vacuuming the capping assembly. When the air distribution holes are rotated to the area outside the arc groove, the air distribution holes are closed so that the capping assembly cannot vacuum absorb the bottle cap (at this time, the bottle cap is connected to the bottle body). This arrangement enables the capping assembly to take and put the cap.

[0009] Preferably, an annular limiting groove is provided at the opening end of the annular guide groove, the valve distribution ring is clearance-matched with the annular limiting groove, and sealing rings are provided on the inner and outer sides of the valve distribution ring.

[0010] Preferably, the guide seat is provided with a plurality of limiters, the lower ends of which are connected to the valve ring, so as to prevent the valve ring and the guide seat from moving relative to each other, thereby ensuring that both are in a stationary state.

[0011] Preferably, a connecting seat mounted on the frame is provided on the upper side of the guide seat, and a plurality of elastic pressure-bearing components are provided between the connecting seat and the guide seat to provide an upward elastic pulling force for the guide seat, and a plurality of adjusting rods are provided on the connecting seat, and the adjusting rods are threadedly connected to the connecting seat, and the lower ends of the adjusting rods are in contact with the upper end of the guide seat. The elastic pressure-bearing components hold the guide seat, and at the same time, exert a downward supporting force on the guide seat through the adjusting rods, so that the height of the guide seat can be adjusted, and then the pressure of the guide seat (gas distribution ring) on ​​the gas distribution ring can be adjusted.

[0012] Preferably, the elastic pressure-bearing component includes a sliding sleeve fixed on the connecting seat, a pull rod sliding through the sliding sleeve, the lower end of the pull rod is fixedly connected to the guide seat, the upper end of the pull rod is provided with a limit seat, and an elastic member is provided on the pull rod at a position between the sliding sleeve and the limit seat.

[0013] Preferably, an air extraction component connected to an air extraction device is provided on the upper side of the connecting seat, the main air pipe is connected to the air extraction component, and at least two main air pipes are configured.

[0014] Preferably, the air distribution ring is connected to the turntable via a connecting column, and a plurality of interfaces corresponding to the air distribution holes are provided at the bottom of the air distribution ring, and the interfaces are connected to the gland assembly via a guide tube.

[0015] Preferably, the flow guide tube is configured as a flexible tube.

[0016] Preferably, a stationary cam seat is provided on the upper side of the turntable, the outer side surface of the cam seat is configured as a cylindrical surface, an end face cam is provided on the cylindrical surface, and a guide wheel acting on both sides of the end face cam is provided on the upper end of the pressure cover assembly; when the turntable drives the pressure cover assembly to rotate, the guide wheel moves along the contour line of the end face cam so that the pressure cover assembly rises and falls according to the preset trajectory of the end face cam.

[0017] Therefore, the utility model has the beneficial effects of short vacuum response time and more stable cover suction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 for Figure 1 Schematic diagram of the local structure.

[0020] Figure 3 for Figure 2 Schematic diagram after removing the connecting socket.

[0021] Figure 4 for Figure 3 Exploded diagram.

[0022] Figure 5 for Figure 4 Another perspective of the picture.

[0023] Figure 6 It is a cross-sectional view of the guide seat, valve ring, and air distribution ring. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial technical effects to be solved by the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the scope of protection of the present invention.

[0025] It should be understood that, in this document, the expressions "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance, nor should they be understood as implicitly indicating the number of technical features indicated. Features defined as "first" or "second" may explicitly or implicitly indicate that at least one of the features is included.

[0026] like Figure 1-Figure 6An automatic capping machine shown in the figure comprises an actively rotatable turntable 3, on which are disposed a plurality of circumferentially distributed and liftable capping assemblies 4, an upper side of the turntable 3 is provided with an air distribution ring 5 which rotates synchronously with the turntable 3, on which are disposed a plurality of air distribution holes 50 which are evenly distributed circumferentially, and the lower ends of the air distribution holes 50 are connected one-to-one with the capping assemblies 4 through air guide pipes; a stationary air guide seat 6 is provided on the upper side of the turntable 3, an annular air guide groove 60 is provided on the lower side of the air guide seat 6, and a main air pipe 7 which is connected with the annular air guide groove 60 is provided on the air guide seat 6; a stationary air distribution ring 8 is provided in the annular air guide groove 60, the lower end face of the air distribution ring 8 abuts against the upper end face of the air distribution ring 5, and an air distribution channel 80 is provided on the air distribution ring 8, the upper end of the air distribution channel 80 is connected with the annular air guide groove 60, and the lower end of the air distribution channel 80 is connected with the air distribution holes 50 in a preset area.

[0027] An exhaust assembly 11 connected to the exhaust device is provided on the upper side of the connecting seat 9, and the main air pipe 7 is connected to the exhaust assembly 11. There are at least two main air pipes 7. In this embodiment, three main air pipes 7 are configured, and the three main air pipes are evenly distributed along the circumferential direction; the air distribution ring 5 is connected to the turntable 3 through a connecting column 500, and a plurality of interfaces 51 corresponding to the air distribution holes 50 are provided at the bottom of the air distribution ring 5. The interface 51 is connected to the pressure cover assembly 4 through a guide pipe; the guide pipe is configured as a flexible pipe.

[0028] The gas distribution channel 80 includes an arc groove 800 provided at the bottom of the gas distribution ring 8, and a plurality of gas distribution holes 801 that penetrate the arc groove. The upper end of the gas distribution hole 801 is connected to the annular guide groove 60. The open end of the annular guide groove 60 is provided with an annular limit groove 61. The gas distribution ring 8 and the annular limit groove 61 are clearance-matched. The inner and outer sides of the gas distribution ring 8 are provided with sealing rings 81. The guide seat 6 is provided with a plurality of limit members 62. The lower end of the limit members 62 is connected to the gas distribution ring 8. The limit members 62 keep the gas distribution ring and the guide seat relatively still.

[0029] In order to further improve the stability, in some embodiments, the air distribution ring and the guide seat are made of metal materials such as iron, aluminum or existing metal alloy materials, and the valve distribution ring is made of polymer materials such as plastic and nylon. On the one hand, it prevents the air distribution ring and the valve distribution ring from wearing synchronously, and the valve distribution ring is easy to replace when it wears alone with low cost; on the other hand, it can reduce the friction between the valve distribution ring and the air distribution ring, making the rotation of the air distribution ring more stable.

[0030] like Figure 6 As shown, a connecting seat 9 installed on the frame 1 is provided on the upper side of the guide seat 6, and a plurality of elastic pressure-bearing components 10 are provided between the connecting seat 9 and the guide seat 6 to provide an upward elastic pulling force for the guide seat 6. A plurality of adjusting rods 90 are provided on the connecting seat 9, and the adjusting rods are threadedly connected to the connecting seat 9, and the lower ends of the adjusting rods 90 abut against the upper ends of the guide seat 6.

[0031] like Figure 5As shown, the elastic pressure-bearing assembly 10 includes a sliding sleeve 100 fixedly mounted on the connecting seat 9, a pull rod 101 slidingly passing through the sliding sleeve, the lower end of the pull rod 101 is fixedly connected to the guide seat 6, the upper end of the pull rod 101 is provided with a limit seat 102, and the part of the pull rod 101 between the sliding sleeve and the limit seat is provided with an elastic member 103. The elastic member 103 in this embodiment is a compression spring.

[0032] A stationary cam seat 2 is provided on the upper side of the turntable 3, and the outer side surface of the cam seat 2 is configured as a cylindrical surface, and an end face cam 20 is provided on the cylindrical surface. A guide wheel 40 acting on both sides of the end face cam 20 is provided on the upper end of the cover pressing assembly 4; when the turntable 3 drives the cover pressing assembly 4 to rotate, the guide wheel 40 moves along the contour line of the end face cam 20 so that the cover pressing assembly 4 rises and falls according to the preset trajectory of the end face cam. In the process of the cover pressing assembly rotating from one end of the arc groove 800 to the other end, the cover pressing assembly is in a state of descending along the end face cam after sucking the cover. When the cover pressing assembly rotates to the area outside the arc groove 800, the air distribution hole is closed, and the cover pressing assembly loses the air suction state and is separated from the cover body. In this state, the cover pressing assembly rises along the end face cam.

[0033] In conjunction with the accompanying drawings, the principle of the utility model is as follows: the air distribution ring, the air distribution ring, and the guide seat are arranged in the upper area of ​​the turntable, the main air pipe, the annular guide groove, the air distribution channel, and the air distribution hole are connected in sequence, so that the vacuumization of each capping assembly is achieved through the main air pipe, and the overall structure is compact and stable; the position of the air distribution pipe is close to the capping assembly, the length of the guide pipe is short, the vacuumization response time is short, and the vacuum adsorption of the bottle cap by the capping assembly is also more stable.

[0034] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by up, down, left, right, inner end, outer end, one end, the other end, etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of more clearly describing the technical solution of the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific orientation, and cannot be understood as a limitation of the present invention.

[0035] Although specific embodiments of the present invention are described in detail herein, they are provided for the purpose of explanation only and should not be considered to limit the scope of the present invention. Various substitutions, changes and modifications may be conceived without departing from the spirit and scope of the present invention.

Claims

1. An automatic capping machine, comprising an actively rotatable turntable (3), on which a plurality of circumferentially distributed and liftable capping assemblies (4) are arranged, wherein: An air distribution ring (5) is provided on the upper side of the turntable (3) and rotates synchronously with the turntable (3); the air distribution ring (5) is provided with a plurality of air distribution holes (50) evenly distributed along the circumferential direction; the lower ends of the air distribution holes (50) are connected to the gland assembly (4) in a one-to-one correspondence via a guide pipe; A stationary flow guide seat (6) is provided on the upper side of the rotating disk (3); an annular flow guide groove (60) is provided on the lower side of the flow guide seat (6); and a main air pipe (7) in communication with the annular flow guide groove (60) is provided on the flow guide seat (6); A stationary air distribution ring (8) is arranged in the annular guide groove (60), the lower end surface of the air distribution ring (8) abuts against the upper end surface of the air distribution ring (5), the air distribution ring (8) is provided with an air distribution channel (80), the upper end of the air distribution channel (80) is communicated with the annular guide groove (60), and the lower end of the air distribution channel (80) is communicated with the air distribution holes (50) in a preset area.

2. The automatic capping machine according to claim 1, characterized in that: The gas distribution channel (80) comprises an arc-shaped groove (800) provided at the bottom of the gas distribution ring (8), and a plurality of gas distribution holes (801) communicating with the arc-shaped groove, wherein the upper ends of the gas distribution holes (801) are communicated with the annular guide groove (60).

3. The automatic capping machine according to claim 1, characterized in that: An annular limiting groove (61) is provided at the open end of the annular guide groove (60), the valve ring (8) is clearance-matched with the annular limiting groove (61), and sealing rings (81) are provided on the inner side and the outer side of the valve ring (8).

4. The automatic capping machine according to claim 3, characterized in that: A plurality of limiting members (62) are provided on the guide seat (6), and the lower ends of the limiting members (62) are connected to the valve distribution ring (8).

5. An automatic capping machine according to claim 1, 2 or 3, characterized in that: A connecting seat (9) mounted on the frame (1) is provided on the upper side of the guide seat (6); a plurality of elastic pressure-bearing components (10) for providing an upward elastic pulling force for the guide seat (6) are provided between the connecting seat (9) and the guide seat (6); a plurality of adjusting rods (90) are provided on the connecting seat (9); the adjusting rods are threadedly connected to the connecting seat (9); and the lower ends of the adjusting rods (90) abut against the upper end of the guide seat (6).

6. The automatic capping machine according to claim 5, characterized in that: The elastic pressure-bearing component (10) comprises a sliding sleeve (100) fixedly mounted on a connecting seat (9), and a pull rod (101) slidingly passing through the sliding sleeve, wherein the lower end of the pull rod (101) is fixedly connected to a flow guide seat (6), the upper end of the pull rod (101) is provided with a limit seat (102), and an elastic member (103) is provided at a portion of the pull rod (101) between the sliding sleeve and the limit seat.

7. The automatic capping machine according to claim 5, characterized in that: An air extraction component (11) connected to an air extraction device is provided on the upper side of the connection seat (9); the main air pipe (7) is connected to the air extraction component (11); and at least two main air pipes (7) are provided.

8. The automatic capping machine according to claim 1, characterized in that: The air distribution ring (5) is connected to the turntable (3) via a connecting column (500); a plurality of interfaces (51) corresponding to the air distribution holes (50) are provided at the bottom of the air distribution ring (5); and the interfaces (51) are connected to the gland assembly (4) via a guide tube.

9. An automatic capping machine according to claim 1 or 8, characterized in that: The flow guide tube is configured as a flexible tube.

10. The automatic capping machine according to claim 1, characterized in that: A stationary cam seat (2) is provided on the upper side of the rotating disk (3); the outer side surface of the cam seat (2) is configured as a cylindrical surface; an end face cam (20) is provided on the cylindrical surface; and a guide wheel (40) is provided at the upper end of the pressing cover assembly (4) for acting on both sides of the end face cam (20); when the rotating disk (3) drives the pressing cover assembly (4) to rotate, the guide wheel (40) moves along the contour line of the end face cam (20) so that the pressing cover assembly (4) rises and falls according to a preset trajectory of the end face cam.

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