Vacuum gland assembly

Abstract

The utility model relates to the technical field of packaging equipment, and discloses a vacuum gland assembly which comprises a shell, a lining is arranged on the inner wall of the shell, a core rod coaxially connected with the lining in a sliding mode is arranged in the lining, the lower end of the core rod extends out of the lining, a suction nozzle assembly is arranged at the lower end of the core rod, and the suction nozzle assembly is arranged on the inner wall of the shell. A flow guide channel communicated with the vacuum suction nozzle is arranged in the core rod, and an air suction port communicated with the flow guide channel is formed in the shell. A limiting seat is arranged in the lining, the upper end of the core rod penetrates through the limiting seat in a sliding mode, a limiting assembly is arranged at the end of the upper end of the core rod, a limiting portion is arranged at the position, close to the lower end of the lining, of the core rod, and an elastic buffering piece is arranged between the limiting portion and the limiting seat. The damping device has the advantages of being good in buffering and damping effect, stable in structure and long in service life.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging equipment, in particular to a vacuum gland assembly. 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 capping machine is equipped with multiple capping assemblies, and a vacuum nozzle is arranged at the lower end of the capping assembly. The vacuum nozzle sucks the cap body and presses the cap body on the bottle mouth. The capping assembly will be subjected to a recoil force during the capping process, which will cause the capping assembly to vibrate. When the capping assembly is subjected to the recoil force for a long time, the stability of the capping is reduced, thereby affecting the service life of the capping assembly. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the utility model provides a vacuum gland assembly with good buffering and shock absorbing effect, stable structure and long service life.

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

[0006] A vacuum gland assembly comprises a shell, a bushing is provided on the inner wall of the shell, a core rod is provided in the bushing and is coaxially slidably connected to the bushing, the lower end of the core rod extends out of the bushing, a suction nozzle assembly is provided at the lower end of the core rod, a guide channel connected to the vacuum suction nozzle is provided in the core rod, and an air intake connected to the guide channel is provided on the shell; a limit seat is provided in the bushing, the upper end of the core rod slides through the limit seat and a limit assembly is provided at the end, a limit portion is provided on the core rod near the lower end of the bushing, and an elastic buffer is provided between the limit portion and the limit seat.

[0007] By adopting the above technical scheme, the air intake port, the guide channel, and the suction nozzle assembly are connected, and the air intake port is connected to the external air intake pipe. When the air intake port inhales air, the suction nozzle assembly absorbs the bottle cap under negative pressure; when the capping assembly descends to press the cap, the reaction force acts on the suction nozzle assembly and the core rod, and the upper end of the core rod and the limit seat move relative to each other, thereby buffering and shock absorbing through the elastic buffer part. When the capping assembly is separated from the bottle body, the elastic buffer part drives the core rod to reset; the overall structure is stable and has a long service life.

[0008] Preferably, the limiting portion is configured as a limiting convex ring arranged on the core rod, and a limiting sleeve is provided on the core rod at the upper end of the limiting convex ring. The core rod slides through the limiting sleeve, and the lower end of the elastic buffer elastically abuts against the limiting sleeve.

[0009] Preferably, the limiting assembly comprises a limiting ring and a fastener, wherein the limiting ring is sleeved on the upper end of the core rod and fastened by the fastener; a stop gasket is provided between the fastener and the limiting ring.

[0010] Preferably, the space on the upper side of the limit seat in the bushing is configured as a guide cavity, an annular cavity is provided at the outer wall of the bushing and the inner wall of the shell, a first guide hole for connecting the air intake port and the annular cavity is provided on the shell, and a plurality of second guide holes for connecting the guide cavity and the annular cavity are provided on the bushing.

[0011] Preferably, a support sleeve is provided at the inner wall of the flow guide cavity, an end cover is provided at the upper end of the sleeve, the lower end of the support sleeve abuts against the limit seat, the upper end of the support sleeve abuts against the end cover, and a plurality of circumferentially distributed air distribution holes are provided on the side of the support sleeve. The support sleeve limits the upper end of the limit seat and distributes air through the air distribution holes, so that the gas flow is more uniform.

[0012] Preferably, a filling block is provided in the upper cavity of the air distribution hole in the support sleeve, and the filling block fills most of the cavities in the support sleeve, reducing the gas space and making the vacuuming response faster.

[0013] Preferably, a connecting seat is provided at the lower end of the core rod, and the suction nozzle assembly is detachably connected to the connecting seat, so that the suction nozzle assembly is easy to replace.

[0014] Preferably, a threaded hole coaxially connected to the guide channel is provided at the lower end of the connecting seat, and a connecting head threadedly connected to the threaded hole is provided on the suction nozzle assembly.

[0015] Preferably, a flexible protective cover is provided between the lower end of the housing and the connecting seat, which has dustproof and waterproof functions and can be directly washed with water from the outside.

[0016] Preferably, the bushing is slidably connected to the housing, both ends of the bushing extend out of the housing, a wheel seat is provided at the upper end of the bushing, and two rollers for cooperating with the cam are provided on the wheel seat; a sliding seat is fixedly provided on the side of the housing, and a slide rail is fixedly provided on the wheel seat, and the slide rail is slidably connected to the sliding seat. The two rollers can cooperate with the external cam to realize the lifting and lowering of the gland assembly.

[0017] Therefore, the utility model has the beneficial effects of good buffering and shock absorption effect, stable structure and long service life. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 for Figure 1 sectional view of .

[0020] Figure 3 for Figure 1 Exploded diagram.

[0021] Figure 4 for Figure 2 A partial enlarged schematic diagram in the middle.

[0022] Figure 5 The utility model relates to a chuck structure which can be used to replace a suction nozzle.

[0023] Figure 6 It is a schematic diagram of the cooperation between the gland assembly and the cam. 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 4 A vacuum gland assembly shown includes a shell 1, a bushing 2 is provided on the inner wall of the shell 1, a core rod 3 is provided in the bushing 2 and is coaxially slidably connected to the bushing 2, the lower end of the core rod 3 extends out of the bushing 2, a suction nozzle assembly 4 is provided at the lower end of the core rod 3, a guide channel 300 connected to the vacuum suction nozzle is provided in the core rod 3, and an air intake 100 connected to the guide channel 300 is provided on the shell 1; a limit seat 5 is provided in the bushing 2, the upper end of the core rod 3 slides through the limit seat 5 and a limit assembly 6 is provided at the end, a limit portion 301 is provided on the core rod 3 near the lower end of the bushing 2, and an elastic buffer 7 is provided between the limit portion 301 and the limit seat 5.

[0027] The limiting portion 301 is configured as a limiting convex ring set on the core rod 3. A limiting sleeve 31 is provided on the core rod 3 at the upper end of the limiting convex ring. The core rod 3 slides through the limiting sleeve 31, and the lower end of the elastic buffer 7 elastically abuts against the limiting sleeve 31.

[0028] The limiting assembly 6 comprises a limiting ring 60 and a fastener 61. The limiting ring is sleeved on the upper end of the core rod 3 and fastened by the fastener. A stop washer 62 is provided between the fastener 61 and the limiting ring 60. The elastic buffer 7 in this embodiment is configured as a compression spring.

[0029] The space on the upper side of the limit seat 5 in the bushing 2 is configured as a guide cavity 200, an annular cavity 201 is provided at the outer wall of the bushing 2 and the inner wall of the shell 1, a first guide hole 101 for connecting the air inlet 100 and the annular cavity 201 is provided on the shell 1, and a plurality of second guide holes 202 for connecting the guide cavity 200 and the annular cavity 201 are provided on the bushing 2; a support sleeve 8 is provided at the inner wall of the guide cavity 200, an end cover 9 is provided at the upper end of the bushing 2, the lower end of the support sleeve 8 abuts against the limit seat 5, the upper end of the support sleeve 8 abuts against the end cover 9, and a plurality of air distribution holes 80 distributed along the circumferential direction are provided on the side of the support sleeve 8. A filling block 81 is provided in the upper cavity of the air distribution hole in the support sleeve 8. The filling block 81 in this embodiment is made of lightweight materials such as plastic, rubber, and nylon. The filling block reduces the space in the guide cavity, thereby reducing the vacuum space, making the vacuum efficiency higher.

[0030] The lower end of the core rod 3 is provided with a connection seat 10, and the suction nozzle assembly 4 is detachably connected to the connection seat; the lower end of the connection seat 10 is provided with a threaded hole coaxially connected to the guide channel 300, and the suction nozzle assembly 4 is provided with a connector 40 threadedly connected to the threaded hole. A flexible protective cover 11 is provided between the lower end of the housing 1 and the connection seat. Figure 5 The figure shows a structure of a clamp 16. The lower end of the clamp 16 is provided with a plurality of claws 160. When some bottle caps cannot be vacuum-adsorbed, the nozzle assembly is replaced with Figure 5 The clamp 16 shown holds the cover body by means of the clamping jaws.

[0031] The bushing 2 is slidably connected to the housing 1. Both ends of the bushing 2 extend out of the housing 1. A wheel seat 12 is provided at the upper end of the bushing 2. Two rollers 13 for cooperating with the cam are provided on the wheel seat 12. A sliding seat 14 is fixedly provided on the side of the housing 1. A slide rail 15 is fixedly provided on the wheel seat. The slide rail is slidably connected to the sliding seat. Figure 6 The figure shows the connection diagram of the gland assembly and the cam 17. When the gland assembly rotates along the cam, the sleeve can be slid and lifted under the action of the cam.

[0032] In conjunction with the accompanying drawings, the principle of the utility model is as follows: the air intake port is connected to the external air intake pipe, and when the air intake port inhales air, the suction nozzle assembly absorbs the bottle cap under negative pressure; when the cam drives the bushing and the core rod to press down the cap, the reaction force acts on the suction nozzle assembly and the core rod, and the upper end of the core rod and the limit seat move relative to each other, thereby buffering and shock absorbing through the elastic buffer part. When the capping assembly is separated from the bottle body, the elastic buffer part drives the core rod to reset; the overall structure is stable and has a long service life.

[0033] 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.

[0034] 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. A vacuum gland assembly, comprising a housing (1), characterized in that: The inner wall of the shell (1) is provided with a bushing (2), the bushing (2) contains a core rod (3) coaxially slidably connected to the bushing (2), the lower end of the core rod (3) extends out of the bushing (2), the lower end of the core rod (3) is provided with a suction nozzle assembly (4), the core rod (3) contains a guide channel (300) connected to the vacuum suction nozzle, and the shell (1) is provided with an air inlet (100) connected to the guide channel (300); A limiting seat (5) is provided in the bushing (2); the upper end of the core rod (3) slides through the limiting seat (5) and a limiting assembly (6) is provided at the end; a limiting portion (301) is provided on the core rod (3) near the lower end of the bushing (2); and an elastic buffer (7) is provided between the limiting portion (301) and the limiting seat (5).

2. A vacuum gland assembly according to claim 1, characterized in that: The limiting portion (301) is configured as a limiting convex ring provided on the core rod (3); a limiting sleeve (31) is provided on the core rod (3) at the upper end of the limiting convex ring; the core rod (3) slides through the limiting sleeve (31), and the lower end of the elastic buffer (7) elastically abuts against the limiting sleeve (31).

3. A vacuum gland assembly according to claim 1 or 2, characterized in that: The limiting assembly (6) comprises a limiting ring (60) and a fastener (61); the limiting ring is sleeved on the upper end of the core rod (3) and fastened by the fastener (61); a stop washer (62) is provided between the fastener (61) and the limiting ring (60).

4. A vacuum gland assembly according to claim 1, characterized in that: The space inside the bushing (2) located above the limiting seat (5) is configured as a guide cavity (200); an annular cavity (201) is provided at the outer wall of the bushing (2) and the inner wall of the shell (1); a first guide hole (101) for connecting the air intake port (100) and the annular cavity (201) is provided on the shell (1); and a plurality of second guide holes (202) for connecting the guide cavity (200) and the annular cavity (201) are provided on the bushing (2).

5. A vacuum gland assembly according to claim 4, characterized in that: A support sleeve (8) is provided on the inner wall of the guide cavity (200), an end cover (9) is provided on the upper end of the bushing (2), the lower end of the support sleeve (8) abuts against the limit seat (5), the upper end of the support sleeve (8) abuts against the end cover (9), and a side surface of the support sleeve (8) is provided with a plurality of air distribution holes (80) distributed along the circumferential direction.

6. A vacuum gland assembly according to claim 5, characterized in that: A filling block (81) is provided in the upper cavity of the air distribution hole in the support sleeve (8).

7. A vacuum gland assembly according to claim 1, characterized in that: A connecting seat (10) is provided at the lower end of the core rod (3), and the suction nozzle assembly (4) is detachably connected to the connecting seat.

8. A vacuum gland assembly according to claim 7, characterized in that: The lower end of the connection seat (10) is provided with a threaded hole coaxially connected to the guide channel (300), and the suction nozzle assembly (4) is provided with a connection head (40) threadedly connected to the threaded hole.

9. A vacuum gland assembly according to claim 7 or 8, characterized in that: A flexible protective sleeve (11) is provided between the lower end of the housing (1) and the connecting seat.

10. A vacuum gland assembly according to claim 1, characterized in that: The bushing (2) is slidably connected to the housing (1), both ends of the bushing (2) extend out of the housing (1), a wheel seat (12) is provided at the upper end of the bushing (2), and two rollers (13) for cooperating with the cam are provided on the wheel seat (12); a sliding seat (14) is fixedly provided on the side of the housing (1), and a sliding rail (15) is fixedly provided on the wheel seat, and the sliding rail (15) is slidably connected to the sliding seat (14).

Images