CN210148714U

CN210148714U - Mold clamping mechanism for blow molding machine

Info

Publication number: CN210148714U
Application number: CN201920341079.2U
Authority: CN
Inventors: 温作银
Original assignee: Yuhuan Is With Sending Out Molding Machine Co Ltd
Current assignee: Zhejiang Tongfa Plastic Machinery Co., Ltd.
Priority date: 2019-03-18
Filing date: 2019-03-18
Publication date: 2020-03-17
Anticipated expiration: 2029-03-18

Abstract

The utility model discloses a locking mechanism for blowing machine, close the template including base and two, be equipped with the slide rail on the base, be equipped with the spout on the compound template, two but close the template and pass through slide rail and base sliding connection, including two connecting rods, two crank arms and drive arrangement, the both ends of connecting rod are articulated with closing the template and crank the arm respectively, crank the arm and articulate with the base, drive arrangement is located the base under, drive arrangement drives two crank arms and rotates and then drives two and close the template and realize compound die or die sinking in opposite directions or the motion dorsad. It is characterized in that: the adoption of the speed reducing motor or the servo motor to replace the oil cylinder not only reduces pollution and is more environment-friendly and efficient, but also enables a product to be processed to be positioned in the center when the two die closing plates move synchronously, thereby improving the product quality.

Description

Mold clamping mechanism for blow molding machine

Technical Field

The utility model belongs to the technical field of the blowing machine production facility, especially, relate to a locking mechanism for blowing machine.

Background

The blow molding machine has been widely applied, the blow molding plastic bottle has the advantages of fast molding, beautiful appearance, and wide application to the containers of tea, fruit juice, water and flavoring and large transfusion, the key structure in the design of the blow molding machine is a mold closing mechanism, wherein the performance, the molding speed, the appearance beauty of the bottle and the equipment cost of the mold closing mechanism are affected by the quality of the mold closing mechanism, the mold closing mechanism of the existing blow molding machine mainly adopts a liquid-filled mold closing mechanism, and the mold closing mechanism mainly comprises a mold locking oil cylinder and a mold moving oil cylinder; when the mold-moving oil cylinder works, the mold-moving oil cylinder provides enough mold force for the mold-locking oil cylinder through automatic liquid filling and quick mold moving, the oil consumption is large, the environment is not environment-friendly, the existing mold-closing machine mainly adopts a left and right double-hinge structure, on one hand, the processing and assembling cost is high, on the other hand, the opening and closing distance and the opening and closing speed of a left mold plate and a right mold plate of the mold-closing mechanism are difficult to adjust uniformly, the bottles are easy to deflect to one side, on the other hand, the occupied space for closing the molds by the double hinges is large, the appearance of the blow molding machine is.

Disclosure of Invention

The utility model aims at the not enough of above-mentioned prior art existence, provide a locking mechanism for blowing machine, it adopts gear motor or servo motor to replace the hydro-cylinder not only pollution abatement environmental protection more and efficient, and two compound die board synchronous motion can make when the compound die treat that the processing product is located the center, improves product quality.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is: the utility model provides a locking mechanism for blowing machine, includes base and two compound templates, be equipped with the slide rail on the base, be equipped with the spout on the compound template, two but compound template passes through slide rail and base sliding connection, includes two connecting rods, two crank arms and drive arrangement, the both ends of connecting rod are articulated with compound template and crank arm respectively, crank arm and base are articulated, drive arrangement is located the base under, drive arrangement drives two crank arms and rotates and then drives two compound templates and move realization compound dies or die sinking in opposite directions or dorsad.

Furthermore, the driving device comprises a driving mechanism and two groups of joint driving components, wherein the driving mechanism is composed of a speed reducer and a first servo motor, each joint driving component comprises 2 eccentric connecting rods, 2 die assembly driving arms and 2 combined die joint groups, each die assembly joint group is composed of at least two die assembly joints, two rotating shafts of the speed reducer are respectively connected with the two eccentric connecting rods, the eccentric connecting rods are hinged with the die assembly driving arms, the die assembly driving arms are hinged with the two die assembly joints, one ends, far away from the die assembly driving arms, of the die assembly joints are hinged with a crank arm, and the first servo motor drives the eccentric connecting rods to rotate by driving the rotating shafts on the speed reducer to drive the die assembly driving arms to rotate so as to drive the die assembly joints to rotate and then drive the.

Further, two groups of joint driving assemblies are positioned on two sides of the crank arm.

Furthermore, the mold closing joint groups are symmetrically arranged relative to the hinged part of the mold closing driving arm and the mold closing joint.

Furthermore, the driving device comprises a servo motor, a die assembly lead screw, a die assembly pushing head and two die assembly connecting rods, wherein a bearing is arranged on the die assembly pushing head, the die assembly lead screw penetrates through the bearing and is connected with a rotating shaft of the servo motor, two ends of the die assembly pushing head are connected with the two die assembly connecting rods, the die assembly connecting rods are connected with a crank arm, and the servo motor drives the die assembly lead screw to rotate so as to drive the die assembly pushing head to reciprocate along the length direction of the die assembly lead screw, so that the die assembly connecting rods are driven to move, and the crank arm is driven to.

Furthermore, a screw rod mounting device is arranged on the die assembly screw rod, and a mounting hole is formed in the screw rod mounting device so that the die assembly screw rod can be conveniently connected with the base.

Further, still include motor mounting panel and bracing piece, motor mounting panel and base pass through the bracing piece and link to each other, set up the pivot through-hole on the motor mounting panel and be convenient for the pivot of motor mounting panel to pass through.

After the structure is adopted, compared with the prior art, the utility model the advantage that has is:

1. the utility model discloses a gear motor or servo motor replace the hydro-cylinder not only pollution abatement environmental protection more, can avoid the oil pollution product in the hydro-cylinder to cause product quality to reduce moreover, can improve product quality, and gear motor or servo motor's the slew velocity can improve the efficiency more than 1.5 times simultaneously, and then improve holistic work efficiency.

2. The utility model discloses a thereby gear motor control eccentric connecting rod rotates and drives the compound die actuating arm and rotate and drive compound die joint group and rotate and then drive the crank arm and rotate and make the template that closes move on the slide rail, wherein the moment of torsion of gear motor during operation can be reduced in setting up of eccentric connecting rod, and then extension gear motor's life.

3. The utility model discloses can play the effect of mechanical auto-lock when the compound die joint in the compound die joint group is in on same water flat line, improve stability.

4. The utility model discloses a servo motor drives the compound die lead screw and rotates and drive the compound die and cut somebody's hair along the length direction motion of compound die lead screw to drive the compound die connecting rod and rotate and then drive the crank arm and rotate and make the length direction motion of closing the template along the slide rail, because the compound die cuts somebody's hair and rotates the precision that therefore the control that can be better closes the template removal of being convenient for calculate.

Drawings

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

Fig. 2 is a schematic structural view of a first driving device with a crank arm according to the present invention.

Fig. 3 is a second structural schematic diagram of the present invention.

Fig. 4 is a schematic structural view of a second driving device with a crank arm according to the present invention.

Detailed Description

The following description is only for the preferred embodiment of the present invention, and the protection scope of the present invention is not limited thereby, the present invention will be further explained with reference to the drawings and the embodiments.

Examples, see fig. 1-4: a clamping mechanism for a blow molding machine comprises a base 10 and two mold closing plates 20, wherein a sliding rail 11 is arranged on the base 10, a sliding groove 21 is arranged on each mold closing plate 20, and the two mold closing plates 20 are connected with the base 10 in a sliding mode through the sliding rails 11.

Further, the mold closing device comprises two connecting rods 40, two crank arms 30 and a driving device, wherein two ends of each connecting rod 40 are respectively hinged with the mold closing plate 20 and the corresponding crank arm 30, the crank arms 30 are hinged with the base 10, the driving device is located right below the base 10, and the driving device drives the two crank arms 30 to rotate so as to drive the two mold closing plates to move towards or away from each other to realize mold closing or mold opening.

Furthermore, the driving device adopts a speed reducer 51 and two groups of joint driving components, and the two groups of joint driving components are positioned at two sides of the crank arm 30, so that the stability can be improved; the joint driving assembly comprises 2 eccentric connecting rods 60, 2 mold closing driving arms 70 and 2 combined mold joint sets, wherein each mold closing joint set is composed of at least two mold closing joints 80, the number of the mold closing joints 80 is even, one end, far away from each mold closing driving arm 70, of each mold closing joint 80 is hinged to the corresponding crank arm 30, and the mold closing joints are symmetrically arranged relative to the hinged positions of the mold closing driving arms 70 and the mold closing joints 80, so that the distances from the mold closing driving arms 70 to the hinged positions of the mold closing joints 80 and the crank arms 30 are equal, and the speed reducer 51 can drive the two crank arms 30 to move synchronously; specifically, two rotating shafts of the speed reducer 51 are respectively connected with two eccentric connecting rods 60, and then the eccentric connecting rods 60 are hinged with the mold closing driving arm 70, wherein the arrangement of the eccentric connecting rods 60 can reduce the torque of the speed reducer 51 driving the mold closing driving arm 70, so that the speed reducer 51 is protected, and the service life of the speed reducer 51 is prolonged; the mold closing driving arm 70 is hinged with the two mold closing joints 80, and during operation, the speed reducer 51 drives the eccentric connecting rod 60 to rotate so as to drive the mold closing driving arm 70 to rotate, further drive the mold closing joints 80 to rotate and then drive the crank arm 30 to rotate, and then drive the two mold closing plates 20 to move oppositely or reversely along the length direction of the slide rail 11 so as to realize mold closing or mold opening; the die sinking distance of two of them compound die board 20 can select the articulated compound die joint 80 each other of suitable number as required, uses more in a flexible way, can also play the effect of mechanical auto-lock when compound die joint 80 is in same water flat line simultaneously, improves stability.

Further, the driving device comprises a servo motor 90, a die closing screw rod 100, a die closing push head 110, two die closing connecting rods 120, a motor mounting plate 131 and a supporting rod 132, wherein the motor mounting plate 131 is connected with the base 10 through the supporting rod 132, the die closing screw rod 100 is provided with a screw rod mounting device 140, a mounting hole is formed in the screw rod mounting device 140 so as to connect the die closing screw rod 100 with the base 10, a bearing 111 is arranged on the die closing push head 110, one end, far away from the base 10, of the die closing screw rod 100 penetrates through the bearing 111, meanwhile, a rotating shaft through hole is formed in the motor mounting plate 131 so as to enable a rotating shaft of the servo motor 90 to penetrate through the rotating shaft, so that the die closing screw rod 100 is connected with the rotating shaft of the servo motor 90, two ends of the die closing push head 110 are connected with the two die closing connecting rods 120, the die closing connecting rods 120 are connected with the crank arm 30, and the The movement further drives the crank arm 30 to rotate, then drives the two die closing plates 20 to move oppositely or reversely along the length direction of the slide rail 11 to realize die closing or die opening, and by adopting the structure, the die closing push head 110 rotates a plurality of wires to facilitate calculation, so that the moving distance of the die closing plates 20 can be better controlled, and further the precision is improved.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a locking mechanism for blowing machine, includes base (10) and two close template (20), be equipped with slide rail (11) on base (10), be equipped with spout (21) on closing template (20), two close template (20) but pass through slide rail (11) and base (10) sliding connection, its characterized in that: the die closing mechanism comprises two connecting rods (40), two crank arms (30) and a driving device, wherein two ends of each connecting rod are respectively hinged with a die closing plate (20) and the corresponding crank arm (30), the crank arms (30) are hinged with a base (10), the driving device is located right below the base (10), and the driving device drives the two crank arms (30) to rotate so as to drive the two die closing plates to move in the opposite direction or in the opposite direction to realize die closing or die opening.

2. The clamping mechanism for a blow molding machine according to claim 1, wherein: the driving device comprises a driving mechanism consisting of a speed reducer (51) and a first servo motor (52) and two groups of joint driving components, the joint driving component comprises 2 eccentric connecting rods (60), 2 mold closing driving arms (70) and 2 combined mold joint groups, the mold closing joint group is composed of at least two mold closing joints (80), two rotating shafts of the speed reducer (51) are respectively connected with two eccentric connecting rods (60), the eccentric connecting rod (60) is hinged with a die-closing driving arm (70), the die-closing driving arm (70) is hinged with two die-closing joints (80), one end of the mold closing joint (80) far away from the mold closing driving arm (70) is hinged with the crank arm (30), the first servo motor (52) drives the rotating shaft on the speed reducer (51) to rotate so as to drive the eccentric connecting rod (60) to rotate, so that the mold closing driving arm (70) is driven to rotate, the mold closing joint (80) is driven to rotate, and then the crank arm (30) is driven to rotate.

3. The clamping mechanism for a blow molding machine according to claim 2, wherein: two groups of joint driving components are positioned on two sides of the crank arm (30).

4. The clamping mechanism for a blow molding machine according to claim 2, wherein: the mold closing joint groups are symmetrically arranged relative to the hinged part of the mold closing driving arm (70) and the mold closing joint (80).

5. The clamping mechanism for a blow molding machine according to claim 1, wherein: the driving device comprises a servo motor (90), a die closing screw rod (100), a die closing push head (110) and two die closing connecting rods (120), wherein a bearing is arranged on the die closing push head (110), the die closing screw rod (100) penetrates through a rotating shaft of the bearing and the servo motor (90) to be connected, two ends of the die closing push head (110) are connected with the two die closing connecting rods (120), the die closing connecting rods (120) are connected with a crank arm (30), and the servo motor (90) drives the die closing screw rod (100) to rotate so as to drive the die closing push head (110) to reciprocate along the length direction of the die closing screw rod (100) to drive the die closing connecting rods (120) to move so as to drive the crank arm (30) to rotate.

6. The clamping mechanism for a blow molding machine according to claim 5, wherein: the die closing screw rod (100) is provided with a screw rod mounting device (140), and a mounting hole is formed in the screw rod mounting device (140) so that the die closing screw rod (100) can be conveniently connected with the base (10).

7. The clamping mechanism for a blow molding machine according to claim 5, wherein: still include motor mounting panel (131) and bracing piece (132), motor mounting panel (131) and base (10) link to each other through bracing piece (132), set up the pivot through-hole on motor mounting panel (131) and be convenient for the pivot of motor mounting panel (131) to pass through.