CN102729378A - Ultrasonic cutting device for bottleneck of blow-molded bottle - Google Patents

Abstract

The invention discloses an ultrasonic cutting device for blow molding bottle mouth. The main rack is composed of two racks, and the blow molding bottle moving channel is formed between the two racks. The two ends of the moving channel are respectively the inlet side and the outlet side of the blow molding bottle, and the bottle mouth clamping mechanism is set on a rack. Two sets of ultrasonic cutting mechanisms with the same structure are symmetrically arranged on the two racks. The ultrasonic cutting knives are respectively arranged above the two racks. The bottle clamping and guiding mechanisms are arranged on both sides of the moving channel. The mechanism is provided on the exit side of the moving channel. The present invention has a small cutting force on the bottle mouth, so that the deformation of the bottle mouth is small, and the cutting efficiency is high; the tool wear is small; the bottle mouth clamping mechanism and the blow molding bottle moving mechanism move synchronously, which can realize the clamping and positioning of the bottle mouth, and ensure the incision rules and smoothness. The bottle mouth flash collection mechanism collects the cut flash to prevent the bottle mouth flash from falling into the moving channel of the blow molded bottle. It is matched with the automatic bottle blowing machine, which can realize online flash removal.

Description

Blow molding bottle mouth ultrasonic cutting device

technical field

The invention relates to an ultrasonic cutting device, in particular to an ultrasonic cutting device for blow molding bottle mouth.

Background technique

The automatic blow molding blow molding machine can efficiently blow bottles such as jars, baby bottles, beverage bottles, cosmetic bottles, etc., but after blow molding, due to the blow molding process, there will be flashes at the mouth of the bottle, which should be cut off After the bottle can be used.

The traditional method of cutting off the flash of the bottle mouth is manual cutting, which has the disadvantages of low efficiency, uneven cutting and poor quality. Mainly adopt machine now to cut off the bottle finish, typically as "the cut-off mechanism of automatic blow molding blow molding machine" and "plastic bottle finish rotary cutter" disclosed in patent application publication number CN1654189A and CN102285102A respectively. Both of the above two invention patents use ordinary cutters to cut off the bottle mouth, which can effectively cut off the flash of the bottle mouth. However, a large cutting force will be generated during the cutting process, and the bottle mouth will be easily deformed, resulting in uneven incision. , the cutting quality is poor. In addition, when the cutter is used for a long time, it is prone to wear and tear, and the continued use will affect the cutting quality of the bottle mouth. Therefore, the cutter needs to be replaced regularly, which is time-consuming and laborious. The principle of ultrasonic cutting is completely different from cutting in the traditional sense. The energy of ultrasonic waves is used to locally heat and melt the material to be cut, so as to achieve the purpose of cutting the material. Ultrasonic cutting does not require sharp edges, does not require a lot of pressure, and will not cause damage to the cut material.

The above-mentioned invention patent application publication number CN1654189A discloses "the bottle mouth cutting mechanism of automatic blow molding blow molding machine" to cut off the bottle mouth flash by clamping the mold, rotating and cutting off the flash, and releasing the bottle by opening the mold. The whole cutting process The process is more complicated and the efficiency is low. Invention patent CN102285102A discloses a "plastic bottle mouth rotary cutter" that can effectively cut off the bottle mouth flash, but does not collect the bottle mouth flash in time after cutting off the bottle mouth flash. If the bottle mouth flash falls into the blow molding The bottle moving channel will affect the normal movement of the blow molding bottle, thereby affecting the normal operation of the bottle cutter.

Contents of the invention

The purpose of the present invention is to provide an ultrasonic cutting device for blow molded bottle mouth, which is beneficial to improve cutting efficiency, reduce bottle mouth deformation, improve incision quality, and move the bottle mouth synchronously with the blow molded bottle moving mechanism The clamping and positioning of the mouth ensures the regularity and smoothness of the cut, and effectively collects the cut off bottle mouth flash in time to prevent the flash from falling into the moving channel of the blow molded bottle and affecting the normal operation of the bottle cutting machine. The bottle machine is equipped with an ultrasonic cutting device for blow molding bottle mouth that can realize online cutting flash.

The technical solution adopted by the present invention to solve its technical problems is:

The invention comprises a main frame, a bottle mouth clamping mechanism for clamping the flash part of the blow molded bottle mouth to be cut, two sets of ultrasonic cutting mechanisms with the same structure, two sets of bottle body clamping and guiding mechanisms with the same structure and The bottle mouth flash collecting mechanism; the main frame is composed of one frame and another frame, and the blow molding bottle movement channel is formed between the two frames. On the exit side of the plastic bottle, the bottle mouth clamping mechanism is set on one frame, and two sets of ultrasonic cutting mechanisms with the same structure are symmetrically set on the two frames, and the ultrasonic cutting knives of the ultrasonic cutting mechanism are respectively set on the two frames. Above, two sets of bottle body clamping and guiding mechanisms with the same structure are symmetrically arranged on both sides of the blow molding bottle moving channel, and the bottle mouth flash collection mechanism is set on the blow molding bottle outlet side of the blow molding bottle moving channel; the blow molding bottle moving channel The bottom of the bottle is the conveyor belt of the automatic bottle blowing machine, and the conveyor belt drives the blow molded bottle to move forward.

The bottle mouth clamping mechanism includes a driving sprocket, a clamping chain, a driven sprocket, a motor and a motor base; the motor base is fixed on a side frame at the inlet side of the blow molding bottle, and the motor is installed on the motor base On the top, the output shaft of the motor faces upward, the driving sprocket is installed on the output shaft of the motor, and is installed on a frame top plate through bearings and bearing seats, and the driven sprocket is installed on a frame top plate at the outlet side of the blow molding bottle , the clamping chain is set on the driving sprocket and the driven sprocket.

The two sets of ultrasonic cutting mechanisms with the same structure each include an ultrasonic cutting tool, a tool seat, a horn, an ultrasonic transducer and an ultrasonic generator;

The ultrasonic cutting tools are installed on the top plate of each frame through the tool holder, and the horn is arranged under the ultrasonic cutting tool, connected with the ultrasonic cutting tool, and fixed on the inner plates of the two frames through rings and buckles. The transducer is connected with the horn and arranged under the horn, and the ultrasonic generator is fixed on the bottom plate of another frame.

The two sets of bottle body clamping guide mechanisms with the same structure each include a guide clamping plate, a clamping spring and a spring fixing block; the guide clamping plates are arranged on both sides of the blow molding bottle moving channel, Three spring fixing blocks are equidistantly arranged on the bottom plate of a frame, and one end of the three clamping springs is connected to the spring fixing block, and the other end passes through the inner flat plate of the frame to connect with the guide clamping plate.

The bottle finish collecting mechanism is arranged on a frame at the outlet side of the blow-molded bottle, and consists of a supporting plate on the upper part and a collecting tank on the lower part.

The clamping chain includes a plurality of chain links, each of which is composed of a clamping plate and a connecting block; The two adjacent chain links are connected into a whole by the chain link connecting plate through screws.

The blade of the ultrasonic cutting tool is curved, and the blade curve is a plane curve, which is located in the plane of the mouth of the blow-molded bottle to be cut off. The edge of the blow molding bottle is tangent to the mouth of the blow molding bottle. The end point of the blade curve corresponding to the outlet side of the blow molding bottle is located on the center line of the blow molding bottle moving direction. The ultrasonic cutting tool is gradually thickened from the blade to the root connection of the blade.

Each set of guide and clamping plates includes two guide plates, a clamping plate and rollers; the two guide plates are respectively arranged on the inlet side of the blow molding bottle and the outlet side of the blow molding bottle, and the clamping plate Set on both sides of the blow molding bottle moving channel, the rollers are installed on the side of the clamping plate contacting the blow molding bottle, and are evenly arranged in the length direction of the clamping plate.

The beneficial effects that the present invention has are:

The bottle mouth is cut by the ultrasonic cutting mechanism, the cutting force is small, the deformation of the bottle mouth is small, the incision quality is good, and the cutting efficiency is high. The tool wear is small and the service life of the tool is extended. The bottle mouth clamping mechanism and the blow molding bottle moving mechanism move synchronously, which can realize the clamping and positioning of the bottle mouth, and ensure the regularity and smoothness of the incision. The bottle mouth flash collection mechanism collects the cut flash to prevent the bottle mouth flash from falling into the moving channel of the blow molded bottle and affecting the normal work. The present invention has simple overall structure and convenient operation, can be matched with an automatic bottle blowing machine, and can realize an ultrasonic cutting device for blow molding bottle necks that can cut burrs on-line.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

FIG. 2 is a rear view of FIG. 1 .

Fig. 3 is a structural diagram of the ultrasonic cutting mechanism of the present invention.

Fig. 4 is a structural diagram of the clamping chain of the present invention.

Fig. 5 is a schematic diagram of the cutting state of the present invention for cutting the flash of the bottle finish.

In the figure: 1. General frame, 3. Bottle clamping mechanism, 7. Blow-molded bottle, 11. One frame, 12. Another frame, 21. Blow-molded bottle inlet side, 22. Blow-molded bottle outlet Side, 23, moving channel, 24, conveyor belt, 31, driving sprocket, 32, clamping chain, 33, driven sprocket, 34, motor, 35, motor seat, 41, ultrasonic cutting tool, 42, tool seat , 43. Horn, 44. Ultrasonic transducer, 45. Ultrasonic generator, 51. Clamping guide plate, 52. Clamping spring, 53. Spring fixing block, 61. Supporting plate, 62. Collector, 71 , bottle mouth flash, 111, a frame top plate, 112, a frame inner plate, 121, another frame top plate, 122, another frame inner plate, 321, clamping plate, 322, connecting block, 323 , link connecting plate, 341, motor output shaft, 461, ring, 462, hasp, 511, guide plate, 512, clamping plate, 513, roller, 3221, bolt, 3231, screw.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Fig. 1, the present invention comprises the general frame 1 that is used for installing and fixing other mechanism in the device, is used for clamping the bottleneck clamping mechanism 3 of the flash portion of the bottle mouth of the blow-molded bottle to be cut, for Two sets of ultrasonic cutting mechanisms with the same structure for cutting off the flash of the blow molded bottle mouth, two sets of bottle clamping and guiding mechanisms with the same structure for guiding and clamping the blow molded bottle, and the bottle mouth for collecting the flash of the bottle mouth Flash edge collection mechanism; total frame 1 is made up of a frame 11 and another frame 12, and one frame 11 comprises a frame top plate 111 and a frame inner plate 112, and another frame 12 comprises another frame The top plate 121 and the inner plate 122 of another frame form a blow molding bottle moving channel 23 between the two frames. The clamping mechanism 3 is arranged on a frame 11, and two sets of ultrasonic cutting mechanisms with the same structure are arranged symmetrically on the two frames 11 and 12, and the ultrasonic cutting tools of the ultrasonic cutting mechanism are respectively arranged above the two frames. Two sets of bottle body clamping and guiding mechanisms with the same structure are arranged symmetrically on both sides of the blow molding bottle moving channel 23 , and the bottle finish collecting mechanism is arranged on the blow molding bottle outlet side 22 of the blow molding bottle moving channel 23 . The bottom of the blow molding bottle moving channel 23 is the conveyor belt 24 of the automatic bottle blowing machine, and the conveyor belt 24 drives the blow molding bottle 7 to move forward.

As shown in Fig. 1 and Fig. 2, two sets of bottle body clamping guide mechanisms with the same structure each include a guide clamping plate 51, a clamping spring 52 and a spring fixing block 53; the guide clamping plate 51 is arranged on the The two sides of the blow molding bottle moving channel 23 are used to guide and clamp the moving blow molding bottle, and the three spring fixing blocks 53 are equidistantly arranged on the bottom plate of a frame for fixing the clamping spring , one end of the three clamping springs 52 is connected to the spring fixing block 53, and the other end passes through the inner plate of the frame and is connected to the guide clamping plate 51 to provide clamping force for the guide clamping plate.

As shown in Figure 1, each set of guiding and clamping plates 51 includes two guiding plates 511, a clamping plate 512 and a roller 513; the two guiding plates 511 are arranged on the blow molding bottle inlet side 21 and On the blow molding bottle outlet side 22, the clamping plate 512 is arranged on both sides of the blow molding bottle moving channel 23, and the roller 513 is installed on the side of the clamping plate 512 contacting the blow molding bottle, and the clamping plate 512 is uniform in the length direction of the clamping plate 512. arrangement. Under the guidance of the guide plate 511, the blow-molded bottle enters the blow-molded bottle moving channel 23, and moves forward under the clamping of the clamping plate 512, and the roller 513 can reduce the friction force when the blow-molded bottle moves.

As shown in Figures 1 and 2, the bottle opening clamping mechanism 3 includes a driving sprocket 31, a clamping chain 32, a driven sprocket 33, a motor 34 and a motor seat 35; the motor seat 35 is fixed on the blow molding bottle On the side frame 11 at the entrance side 21, the motor 34 is installed on the motor base 35, the motor output shaft 341 faces upwards, and the driving sprocket 31 is installed on the motor output shaft 341, and is mounted on a machine by bearings and bearing blocks. On the frame top plate 111, the driven sprocket 33 is installed on a frame top plate 111 at the blow molding bottle outlet side 22, the clamping chain 32 is sleeved on the driving sprocket 31 and the driven sprocket 33, and the motor 34 passes through the driving chain The wheel 31 drives the clamping chain 32 to move, and successively clamps the mouth of the blow-molded bottle to be trimmed.

As shown in Figure 4, the clamping chain 32 includes a plurality of chain links, and each chain link is composed of a clamping plate 321 and a connecting block 322; It is connected with one end of the clamping plate 321 , and two adjacent chain links are connected as a whole by the link connecting plate 323 through screws 3231 .

As shown in Figure 3, two sets of ultrasonic cutting mechanisms with the same structure each include an ultrasonic cutting tool 41, a cutter seat 42, a horn 43, an ultrasonic transducer 44 and an ultrasonic generator 45; The seat 42 is installed on the top plate of each frame, and the ultrasonic cutting tool 41 focuses and outputs ultrasonic waves, and uses its cutting edge to input ultrasonic energy to the cutting part of the material to be cut. The horn 43 is arranged below the ultrasonic cutting tool 41, is connected with the ultrasonic cutting tool 41, and is fixed on the two frame inner plates by a ring 461 and a hasp 462. The ultrasonic transducer 44 and the horn 43 Connected, arranged under the horn 43, the ultrasonic generator 45 is fixed on the bottom plate of another frame 12, and its function is to convert the mains power into a high-frequency high-voltage alternating current and lose it to the ultrasonic transducer 44. The ultrasonic transducer 44 is actually equivalent to an energy conversion device, which can convert the input electric energy into mechanical energy, that is, ultrasonic waves.

As shown in Figure 3, the blade of the ultrasonic cutting tool 41 is curved, and the blade curve is a plane curve, which is located in the plane of the mouth of the blow-molded bottle to be cut off flash, and the blade curve corresponds to one end of the inlet side 21 of the blow-molded bottle , is tangent to the mouth of the blow-molded bottle to be cut off flash, and the end point of the blade curve corresponding to one end of the outlet side 22 of the blow-molded bottle is located on the center line of the blow-molded bottle moving direction, and the ultrasonic cutting tool 41 moves from the blade to the cutter Root junctions gradually thicken.

As shown in Figure 1, the bottle mouth flash collection mechanism is arranged on a frame 11 on the outlet side 22 of the blow-molded bottle. the flying edge.

The working principle of the present invention is as follows:

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 5, the blow molding bottle 7 to be cut off the bottle mouth flash 71 is transported to the blow molding bottle inlet side 21 by the conveyor belt 24 of the automatic blow molding machine, and passes through the aforementioned guide The guide plate 511 of the clamping mechanism enters the blow molding bottle moving channel 23, the clamping plate 512 clamps the blow molding bottle 7 under the action of the clamping spring 52, and the clamping plate on the clamping chain 32 of the bottle opening clamping mechanism 3 321 clamps the bottle mouth flash 71 of the blow molding bottle 7, and the concave arc of the clamping plate 321 cooperates with the bottle mouth arc. The conveyor belt 24 moves at the same speed and grips the blow-molded bottle towards the outlet side 22 of the blow-molded bottle. When the blow-molded bottle 7 to be cut with flash 71 moves to the ultrasonic cutting mechanism and contacts with the ultrasonic cutting tool 41, the lower edge of the flash 71 of the blow-molded bottle 7 is tangent to the blade of the ultrasonic cutter 41 The two points are cut off at first, and as the blow molding bottle 7 moves forward, the blade of the ultrasonic cutter 41 moves along the two points that have been cut off, and gradually moves to the center line of the bottle mouth flash 71 along the moving direction. When the blow-molded bottle 7 moves to the end of the blade of the ultrasonic cutter 41, the flash 71 of the mouth of the blow-molded bottle 7 is completely cut off. The blow-molded bottle 7 after the bottle mouth flash 71 is removed passes through the outlet side 22 of the blow-molded bottle along with the conveyor belt and enters the next process. The bottle mouth flash 71 after cutting still moves forward under the clamping of the clamping plate 321 of the bottle mouth clamping mechanism 3 until the circular arc where the clamping chain 32 matches with the driven sprocket 33, clamps the bottle mouth The two clamping plates of the flash 71 are opened at a certain angle, the flash 71 of the bottle mouth falls on the supporting plate 61 of the flash collection device, the clamping chain 32 continues to rotate, and the flash 71 of the bottle mouth is pushed into the collection tank 62 .

Claims (8)

1. An ultrasonic cutting device for the mouth of a blow-molded bottle, characterized in that it includes a main frame (1), a bottle mouth clamping mechanism (3) for clamping the flash part of the mouth of a blow-molded bottle to be cut, Two sets of ultrasonic cutting mechanisms with the same structure, two sets of bottle body clamping and guiding mechanisms with the same structure and bottle mouth flash collecting mechanisms; the main frame (1) is composed of a frame (11) and another frame (12) , the blow molding bottle moving channel (23) is formed between the two racks, the two ends of the blow molding bottle moving channel are respectively the blow molding bottle inlet side (21) and the blow molding bottle outlet side (22), and the bottle mouth clamping mechanism ( 3) Set on one frame (11), two sets of ultrasonic cutting mechanisms with the same structure are symmetrically arranged on the two frames (11, 12), and the ultrasonic cutting tools of the ultrasonic cutting mechanism are respectively set on the two frames Above, two sets of bottle body clamping and guiding mechanisms with the same structure are symmetrically arranged on both sides of the blow molding bottle moving channel (23), and the bottle mouth flash collection mechanism (6) is set on the blow molding bottle moving channel (23). The bottle outlet side (22); the bottom of the blow molding bottle moving channel (23) is the conveyor belt (24) of the automatic blow molding machine, and the conveyor belt (24) drives the blow molding bottle (7) to move forward. 2. An ultrasonic cutting device for blow molded bottle mouth according to claim 1, characterized in that: said bottle mouth clamping mechanism (3) includes a driving sprocket (31), a clamping chain (32) , the driven sprocket (33), the motor (34) and the motor base (35); the motor base (35) is fixed on the side frame (11) at the inlet side (21) of the blow molding bottle, and the motor (34) Installed on the motor base (35), the motor output shaft (341) faces upwards, the driving sprocket (31) is installed on the motor output shaft (341), and is installed on a frame top plate (111) through bearings and bearing seats , the driven sprocket (33) is installed on a frame top plate (111) at the blow molding bottle outlet side (22), and the clamping chain (32) is sleeved on the driving sprocket (31) and the driven sprocket (33 )superior. 3. An ultrasonic cutting device for the mouth of a blow-molded bottle according to claim 1, characterized in that: said two sets of ultrasonic cutting mechanisms with the same structure each include an ultrasonic cutting tool (41), a tool seat ( 42), the horn (43), the ultrasonic transducer (44) and the ultrasonic generator (45); the ultrasonic cutting tool (41) is installed on the top plate of the respective frame through the tool seat (42), and the horn (43 ) is arranged below the ultrasonic cutting tool (41), connected with the ultrasonic cutting tool (41), and fixed on the two inner plates of the frame through a ring (461) and a buckle (462), and the ultrasonic transducer ( 44) is connected with the horn (43), arranged under the horn (43), and the ultrasonic generator (45) is fixed on the bottom plate of another frame (12). 4. An ultrasonic cutting device for the mouth of a blow-molded bottle according to claim 1, characterized in that: said two sets of bottle body clamping and guiding mechanisms with the same structure, each set includes a guiding clamping plate (51) , the clamping spring (52) and the spring fixing block (53); the guide clamping plate (51) is set on both sides of the blow molding bottle moving channel (23), and the three spring fixing blocks (53) are equidistant set on the bottom plate of a rack, One end of the three clamping springs (52) is connected to the spring fixing block (53), and the other end passes through the inner flat plate of the frame and is connected with the guide clamping plate (51). 5. A blow molding bottle mouth ultrasonic cutting device according to claim 1, characterized in that: said bottle mouth flash collecting mechanism is set on a frame (11) on the blow molding bottle outlet side (22) On the top, it is composed of the upper part as the supporting plate (61) and the lower part as the collection tank (62). 6. The blow molding bottle mouth ultrasonic cutting device according to claim 2, characterized in that: the clamping chain (32) includes a plurality of chain links, and each chain link is connected by a clamping plate (321) and block (322); the two sides of the clamping plate (321) are in a concave arc shape, the connecting block (322) is connected to one end of the clamping plate (321) through bolts (3221), and the two adjacent chain links are formed by The chain link connecting plate (323) is connected as a whole by screws (3231). 7. An ultrasonic cutting device for the mouth of a blow-molded bottle according to claim 3, characterized in that: the blade of the ultrasonic cutting tool (41) is curved, the curve of the blade is a plane curve, and is located at the edge of the flash to be cut In the plane where the mouth of the blow molded bottle is located, the knife edge curve corresponds to one end of the blow molded bottle inlet side (21), which is tangent to the mouth of the blow molded bottle to be cut off flash, and the knife edge curve corresponds to the blow molded bottle outlet side The end point of one end of (22) is located on the center line of the moving direction of the blow-molded bottle, and the ultrasonic cutting tool (41) gradually thickens from the blade to the joint at the root of the tool. 8. An ultrasonic cutting device for blow molded bottle mouth according to claim 4, characterized in that: each set of guiding and clamping plates (51) includes two guiding plates (511), and the clamping plate (512) and roller (513); two guide plates (511) are set on the blow molding bottle inlet side (21) and the blow molding bottle exit side (22) inclined outward respectively, and the clamping plate (512) is set On both sides of the blow molded bottle moving channel (23), the rollers (513) are installed on the side of the clamping plate (512) contacting the blow molded bottle, and are evenly arranged in the length direction of the clamping plate (512).

Images