Device for polishing and leak detection of plastic bottle mouth

Abstract

The utility model relates to a device for grinding and leak detection of the mouth of a plastic bottle, belonging to the technical field of plastic bottle product processing and testing equipment, including an operating table, a conveyor belt is provided on the upper end of the operating table, a grinding mechanism located above the conveyor belt is provided on the operating table, a leak detection assembly is provided on the side of the grinding mechanism, the leak detection assembly includes a leak detection connection seat, a piston cylinder is provided at the front end of the leak detection connection seat, an air pressure detector connected to the piston cylinder is provided at the upper end of the piston cylinder, a piston is provided in the piston cylinder, a leak detection head is provided at the lower end of the piston cylinder and is connected and fixed to the piston in a movable manner, a leak detection spring is provided between the leak detection head and the piston and is sleeved with the piston, and the leak detection head and the piston are hollow structures and are connected to the air pressure detector. It has the advantages of compact structure, time and labor saving, high efficiency and good operation stability. It can reduce the floor space and avoid time waste in multiple processes.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bottle product processing and testing equipment, in particular to a device for grinding and leak detection of the mouth of a plastic bottle. Background Art

[0002] Due to the working principle of blow molding machines and injection molding machines, residual materials and nozzles are inevitable when producing plastic parts. The traditional process involves manually removing the nozzle of the bottle mouth and then using semi-automatic equipment to polish the bottle mouth and inspect it. The labor cost is high, the process is cumbersome, and the product consistency is poor.

[0003] The bottle blowing machine is a machine that uses a mold to blow softened plastic particles or finished preforms into bottles by filling them with gas. The closing of the mold intercepts part of the preform and cuts it off, and the excess preform is the head. The incision is to cut off the excess head, and then use a grinding mouth to grind it.

[0004] At present, the existing equipment on the market uses gas leak detection, which uses a seal to cover the bottle mouth, then fills the bottle with gas, fills the bottle with air pressure to a certain value, maintains it for a certain period of time, and then detects whether the pressure is released to determine whether the bottle is leaking. The existing gas leak detection has the disadvantages of complex structure, requiring a separate gas valve, and long gas filling detection time. Summary of the invention

[0005] The utility model mainly solves the deficiencies in the prior art and provides a device for polishing and leak testing the mouth of a plastic bottle, which has the advantages of compact structure, time and labor saving, high efficiency and good operation stability, thereby reducing the floor space and avoiding time waste in multiple processes.

[0006] The above technical problems of the utility model are mainly solved by the following technical solutions:

[0007] A device for polishing and leak testing the mouth of a plastic bottle comprises an operating table, a conveyor belt is arranged on the upper end of the operating table, a polishing mechanism located above the conveyor belt is arranged on the operating table, a leak testing component is arranged on the side of the polishing mechanism, the leak testing component comprises a leak testing connection seat, a piston cylinder is arranged at the front end of the leak testing connection seat, an air pressure detector connected to the piston cylinder is arranged at the upper end of the piston cylinder, a piston is arranged in the piston cylinder, a leak testing head is arranged at the lower end of the piston cylinder and is movably plug-in-connected and fixed to the piston, a leak testing spring is arranged between the leak testing head and the piston and is sleeved with the piston, and the leak testing head and the piston are hollow structures and are connected to the air pressure detector.

[0008] Preferably, the grinding mechanism is one of the incision assembly and the grinding assembly or a combination of the two; a pair of clamping cylinders located on both sides of the conveyor belt are provided below the incision assembly and the grinding assembly, a cylinder height adjustment seat is provided between the lower end of the clamping cylinder and the operating table, a clamping seat is provided at the front end of the clamping cylinder, and clamping guide rods slidably connected to the cylinder height adjustment seat are provided on both sides of the rear end of the clamping seat.

[0009] Preferably, the cutting assembly comprises a cutting seat, on which a plurality of rotary cutting gears are provided which are slidably sleeved and fixed with the cutting seat, a pulling rod is provided at the lower end of the rotary cutting gear, a cutting knife is provided at the side of the pulling rod, and a cutting knife seat is provided between the cutting knife and the pulling rod. After the cutting knife cuts into the bottle mouth, the pulling rod descends, and after the material head is cut off, the pulling rod holds the material head to prevent the material head from flying around.

[0010] Preferably, a rotary cutting cylinder is provided at the upper end of the cutting seat, and a rotary cutting rack for driving the rotary cutting gear to mesh and rotate is provided between the front end of the rotary cutting cylinder and the rotary cutting gear.

[0011] Preferably, a screw seat is provided at the rear end of the cutting seat, a cutting cylinder for driving the cutting seat to adjust forward and backward is provided in the screw seat, a lifting screw for driving the cutting cylinder to adjust upward and downward is provided on the screw seat, and guide slide bars connected with the cutting cylinder and the operating table are provided at the four corners of the screw seat. The cutting cylinder pushes out the cutting seat, so that the cutter cuts into the material head, which is convenient for subsequent rotary cutting.

[0012] Preferably, the grinding assembly includes a grinding lifting slide, a plurality of grinding transmission shafts are arranged on the grinding lifting slide, a grinding sleeve which is sleeved with the grinding transmission shaft is arranged at the lower end of the grinding lifting slide, and a grinding tool seat which is matched with the grinding sleeve is arranged at the lower end of the grinding transmission shaft.

[0013] Preferably, a waste tray is provided at the rear end of the ground mouth lifting slide, a screw servo motor is provided between the waste tray and the ground mouth lifting slide, a waste pipe support frame is provided between the screw servo motor and the waste tray, an air intake valve plug-in-connected with the ground mouth sleeve is provided at the upper end of the ground mouth transmission shaft, a waste pipe that is sleeved and limited with the waste pipe support frame is provided between the air intake valve and the waste tray, and a ground mouth spring that is sleeved with the ground mouth sleeve is provided between the ground mouth sleeve and the ground mouth lifting slide. The ground mouth spring provides downward pressure for the ground mouth sleeve, so that the ground mouth sleeve fits the plastic bottle completely and ensures that the bottle mouth is polished and flat.

[0014] Preferably, a ground-mouth motor is provided on the ground-mouth lifting slide, and a synchronous pulley pair spline-connected with the ground-mouth transmission shaft is provided between the ground-mouth transmission shaft and the ground-mouth motor.

[0015] Preferably, a screw slide is provided between the rear end of the leak detection connection seat and the operating table, a guide rail is provided on the side of the screw slide, and a sliding block is provided between the guide rail and the leak detection connection seat and is inserted and fixed with the guide rail in a sliding manner.

[0016] Preferably, a protective frame is provided on the operating table, and the protective frame is covered with embedded glass.

[0017] The utility model can achieve the following effects:

[0018] The utility model provides a device for polishing and leak detection of the mouth of a plastic bottle, which has the advantages of compact structure, time and labor saving, high efficiency and good operation stability compared with the prior art, reduces the occupied area and avoids the time waste caused by multiple processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a schematic structural diagram of the incision assembly of the present invention.

[0021] Figure 3 It is a schematic structural diagram of the grinding mouth assembly of the present invention.

[0022] Figure 4 It is a structural schematic diagram of the leak detection assembly of the present invention.

[0023] In the figure: conveyor belt 1, protection frame 2, cutting assembly 3, grinding assembly 4, leak detection assembly 5, operating table 6, peeling rack 7, peeling cylinder 8, cutting cylinder 9, guide slide 10, screw seat 11, lifting screw 12, peeling gear 13, cutter 14, cutter seat 15, pulling rod 16, cutting seat 17, suction valve 18, grinding motor 19, waste pipe 20, screw servo motor 21, waste pipe support frame 2 2, waste tray 23, ground lifting slide 24, ground transmission shaft 25, ground tool holder 26, ground sleeve 27, ground spring 28, synchronous pulley pair 29, screw slide 30, guide rail 31, slider 32, leak detection connecting seat 33, piston 34, leak detection head 35, leak detection spring 36, piston cylinder 37, air pressure detector 38, clamping seat 39, clamping cylinder 40, cylinder height adjustment seat 41, clamping guide rod 42. DETAILED DESCRIPTION

[0024] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0025] Example: Figure 1-4As shown, a device for grinding and leak detection of the mouth of a plastic bottle comprises an operating table 6, a conveyor belt 1 is arranged at the upper end of the operating table 6, a grinding mechanism is arranged on the operating table 6 and is located above the conveyor belt 1, a leak detection component 5 is arranged on the side of the grinding mechanism, the grinding mechanism is one of the cutting component 3 and the grinding component 4 or a combination of the two, a protective frame 2 is arranged on the operating table 6, and the protective frame 2 is embedded with glass for covering. A pair of clamping cylinders 40 are arranged on both sides of the conveyor belt 1 below the cutting component 3 and the grinding component 4, a cylinder height adjustment seat 41 is arranged between the lower end of the clamping cylinder 40 and the operating table 6, a clamping seat 39 is arranged at the front end of the clamping cylinder 40, and clamping guide rods 42 that are slidably sleeved with the cylinder height adjustment seat 41 are arranged on both sides of the rear end of the clamping seat 39.

[0026] The cutting assembly 3 includes a cutting seat 17, on which two peeling gears 13 are slidably sleeved and fixed with the cutting seat 17, a peeling cylinder 8 is provided at the upper end of the cutting seat 17, and a peeling rack 7 is provided between the front end of the peeling cylinder 8 and the peeling gear 13 to drive the peeling gear 13 to rotate in toothed meshing. A pulling rod 16 is provided at the lower end of the peeling gear 13, a cutter 14 is provided on the side of the pulling rod 16, and a cutter seat 15 is provided between the cutter 14 and the pulling rod 16. A screw seat 11 is provided at the rear end of the cutting seat 17, a cutting cylinder 9 is provided in the screw seat 11 to drive the cutting seat 17 to adjust forward and backward, a lifting screw 12 is provided on the screw seat 11 to drive the cutting cylinder 9 to adjust upward and downward, and guide slide bars 10 sleeved with the cutting cylinder 9 and the operating table 6 are provided at the four corners of the screw seat 11.

[0027] The grinding assembly 4 includes a grinding lifting slide 24, on which two grinding transmission shafts 25 are arranged, on which a grinding motor 19 is arranged, and between the grinding transmission shaft 25 and the grinding motor 19, a synchronous pulley pair 29 spline-connected with the grinding transmission shaft 25 is arranged. A grinding sleeve 27 sleeved with the grinding transmission shaft 25 is arranged at the lower end of the grinding lifting slide 24, and a grinding tool holder 26 matching the grinding sleeve 27 for grinding is arranged at the lower end of the grinding transmission shaft 25. A waste tray 23 is provided at the rear end of the ground-mouth lifting slide 24, a screw servo motor 21 is provided between the waste tray 23 and the ground-mouth lifting slide 24, a waste pipe support frame 22 is provided between the screw servo motor 21 and the waste tray 23, an air suction valve 18 which is plug-in connected to a ground-mouth sleeve 27 is provided at the upper end of the ground-mouth transmission shaft 25, a waste pipe 20 which is through-connected and limited to the waste pipe support frame 22 is provided between the air suction valve 18 and the waste tray 23, and a ground spring 28 which is socketed with the ground-mouth sleeve 27 is provided between the ground-mouth sleeve 27 and the ground-mouth lifting slide 24.

[0028] The leak detection assembly 5 includes a leak detection connection seat 33, a piston cylinder 37 is provided at the front end of the leak detection connection seat 33, a gas pressure detector 38 connected to the piston cylinder 37 is provided at the upper end of the piston cylinder 37, a piston 34 is provided in the piston cylinder 37, a leak detection head 35 is provided at the lower end of the piston cylinder 37 and is movably plugged and connected to the piston 34, a leak detection spring 36 is provided between the leak detection head 35 and the piston 34 and is sleeved with the piston 34, and the leak detection head 35 and the piston 34 are hollow structures and are connected to the gas pressure detector 38. A screw slide 30 is provided between the rear end of the leak detection connection seat 33 and the operating table 6, a guide rail 31 is provided on the side of the screw slide 30, and a slider 32 is provided between the guide rail 31 and the leak detection connection seat 33 and is plugged and slidably connected to the guide rail 31.

[0029] Working principle: After the bottle is formed by blowing gas into the mold using a bottle blowing machine, it is placed on the conveyor belt 1 of the operating table 6. Then the plastic bottle arrives below the cutting assembly 3, and the pair of clamping seats 39 are contracted by the clamping cylinder 40 to clamp the plastic bottle, and then the pulling rod 16 is inserted into the bottle mouth, and the rotary cutting gear 13 rotates to drive the cutter 14 on the cutter seat 15 to perform circular cutting of the material head. Then the plastic bottle arrives below the grinding assembly 4, and the pair of clamping seats 39 are contracted by the clamping cylinder 40 to clamp the plastic bottle, and after the grinding knife seat 26 contacts the upper end of the plastic bottle, the grinding transmission shaft 25 drives the grinding knife seat 26 to rotate, and cooperates with the grinding sleeve 27 to cut out the excess burrs and flash on the plastic bottle. The conveyor belt 1 then delivers the plastic bottle to the lower end of the leak detection component 5, and the servo motor on the screw slide 30 drives the leak detection head 35 to move and press against the mouth of the plastic bottle. The piston 34 in the piston cylinder 37 is lifted up by the leak detection head 35 due to the downward movement of the screw slide 30, so that the pressure in the piston cylinder 37 increases. The air pressure detector 38 detects the pressure after the piston 34 is lifted up, and compares it with the set value. When it is less than the set value, it is determined that the plastic bottle is leaking.

[0030] The clamping height of bottles of different lengths is adjusted by a cylinder height adjustment seat 41, the cutting assembly 3 uses a lifting screw 12 to adjust the height, the grinding assembly 4 uses a screw servo motor 21 to control the height stroke of the bottle mouth, and the leak detection assembly 5 controls the displacement of the height stroke of the leak detection head 35 through the screw slide 30.

[0031] In summary, the device for polishing and leak detection of the mouth of a plastic bottle has the advantages of compact structure, time and labor saving, high efficiency and good operation stability, and can reduce the occupied area and avoid time waste in multiple processes.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention 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 invention. Any reference numerals in the claims should not be regarded as limiting the claims involved.

[0033] In summary, the above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A device for polishing and leak detection of the mouth of a plastic bottle, characterized in that: The invention comprises an operating table (6), wherein a conveyor belt (1) is provided at the upper end of the operating table (6), a grinding mechanism located above the conveyor belt (1) is provided on the operating table (6), a leak detection assembly (5) is provided on the side of the grinding mechanism, the leak detection assembly (5) comprises a leak detection connection seat (33), a piston cylinder (37) is provided at the front end of the leak detection connection seat (33), an air pressure detector (38) connected to the piston cylinder (37) is provided at the upper end of the piston cylinder (37), a piston (34) is provided in the piston cylinder (37), a leak detection head (35) is provided at the lower end of the piston cylinder (37) and is movably plug-in-connected and fixed to the piston (34), a leak detection spring (36) sleeved with the piston (34) is provided between the leak detection head (35) and the piston (34), and the leak detection head (35) and the piston (34) are hollow structures and are connected to the air pressure detector (38).

2. The device for polishing and leak detection of the mouth of a plastic bottle according to claim 1, characterized in that: The grinding mechanism is a structure of one of the cutting assembly (3) and the grinding assembly (4) or a combination of the two; a pair of clamping cylinders (40) are provided below the cutting assembly (3) and the grinding assembly (4) and are located on both sides of the conveyor belt (1); a cylinder height adjustment seat (41) is provided between the lower end of the clamping cylinder (40) and the operating table (6); a clamping seat (39) is provided at the front end of the clamping cylinder (40); and clamping guide rods (42) are provided on both sides of the rear end of the clamping seat (39) and are slidably sleeved with the cylinder height adjustment seat (41).

3. The device for polishing and leak detection of the mouth of a plastic bottle according to claim 2, characterized in that: The cutting assembly (3) comprises a cutting seat (17), on which a plurality of rotary cutting gears (13) are provided which are slidably sleeved and fixed to the cutting seat (17), a pulling rod (16) is provided at the lower end of the rotary cutting gear (13), a cutting knife (14) is provided on the side of the pulling rod (16), and a cutting knife seat (15) is provided between the cutting knife (14) and the pulling rod (16).

4. The device for polishing and leak detection of the mouth of a plastic bottle according to claim 3, characterized in that: A rotary cutting cylinder (8) is provided at the upper end of the cutting seat (17), and a rotary cutting rack (7) for driving the rotary cutting gear (13) to rotate in toothed meshing is provided between the front end of the rotary cutting cylinder (8) and the rotary cutting gear (13).

5. The device for polishing and leak testing the mouth of a plastic bottle according to claim 3, characterized in that: A screw seat (11) is provided at the rear end of the cutting seat (17), a cutting cylinder (9) is provided in the screw seat (11) for driving the cutting seat (17) to adjust forward and backward, a lifting screw (12) is provided on the screw seat (11) for driving the cutting cylinder (9) to adjust upward and downward, and guide slide bars (10) are respectively provided at the four corners of the screw seat (11) and are sleeved with the cutting cylinder (9) and the operating table (6).

6. The device for polishing and leak detection of the mouth of a plastic bottle according to claim 2, characterized in that: The grinding assembly (4) comprises a grinding lifting slide (24), a plurality of grinding transmission shafts (25) are arranged on the grinding lifting slide (24), a grinding sleeve (27) sleeved with the grinding transmission shaft (25) is arranged at the lower end of the grinding lifting slide (24), and a grinding tool holder (26) matching the grinding sleeve (27) for grinding is arranged at the lower end of the grinding transmission shaft (25).

7. The device for polishing and leak detection of the mouth of a plastic bottle according to claim 6, characterized in that: A waste tray (23) is provided at the rear end of the ground-mouth lifting slide (24); a screw servo motor (21) is provided between the waste tray (23) and the ground-mouth lifting slide (24); a waste pipe support frame (22) is provided between the screw servo motor (21) and the waste tray (23); an air suction valve (18) plug-in-connected to the ground-mouth sleeve (27) is provided at the upper end of the ground-mouth transmission shaft (25); a waste pipe (20) penetratingly sleeved and limited to the waste pipe support frame (22) is provided between the air suction valve (18) and the waste tray (23); and a ground spring (28) sleeved to the ground-mouth sleeve (27) is provided between the ground-mouth sleeve (27) and the ground-mouth lifting slide (24).

8. The device for polishing and leak testing the mouth of a plastic bottle according to claim 6, characterized in that: A ground-mouth motor (19) is provided on the ground-mouth lifting slide (24), and a synchronous pulley pair (29) spline-connected with the ground-mouth transmission shaft (25) is provided between the ground-mouth transmission shaft (25) and the ground-mouth motor (19).

9. The device for polishing and leak detection of the mouth of a plastic bottle according to claim 1, characterized in that: A screw slide (30) is provided between the rear end of the leak detection connection seat (33) and the operating table (6), a guide rail (31) is provided on the side of the screw slide (30), and a sliding block (32) is provided between the guide rail (31) and the leak detection connection seat (33) and is inserted and slidably connected to the guide rail (31).

10. The device for polishing and leak testing the mouth of a plastic bottle according to claim 1, characterized in that: The operating table (6) is provided with a protective frame (2), and the protective frame (2) is covered with embedded glass.

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