CN2238731Y

CN2238731Y - Plastic mechanical mold clamping mechanism

Info

Publication number: CN2238731Y
Application number: CN 95246682
Authority: CN
Inventors: 刘资丰
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-12-19
Filing date: 1995-12-19
Publication date: 1996-10-30
Anticipated expiration: 2005-12-19

Abstract

The utility model provides a plastics machinery locking mechanism, characteristics are that the hydro-cylinder is articulated with the frame and are connected, the hydro-cylinder plunger is articulated through connecting plate and movable mould board and is connected, adjusting device is established to the movable mould board rear side, direction supporting mechanism is established to the movable mould board below, the gyro wheel supporting of this mechanism is at the guide rail that is fixed in the frame, fixed die plate sets firmly in the frame, movable mould board's articulated, adjusting device and direction supporting mechanism make locking mechanism can ensure the mode locking precision and the finished piece quality of mechanism under the guide arm-free condition, and locking mechanism does not have the guide arm, link mechanism and adjustment template, make its structure simplify, obviously reduce equipment manufacturing cost, and can improve locking mechanism work efficiency.

Description

The plastics machinery clamping

The utility model relates to a kind of plastics forming forcing press, particularly a kind of clamping of plastics forming forcing press.

The clamping of existing plastics forming forcing press is to be power with the hydraulic jack; oil cylinder drives template by one group of jointed gear unit; template is to count the guide rod guiding; the advantage of these traditional clampings is that the transmission mechanism power that is designed to is transmitted enlarging function; can adopt the less oil cylinder of size in the equipment; template is led by guide rod, the big locked mode precision of its rigidity height, but there is following point in this clamping:

1, in the clamping kinematic link is set, simultaneously in order to adapt to different die sizes, also must sets up one and adjust template, add the annex of several guide rods and support guide rod, whole clamping structural member quantity is many, and the manufacture process requirement height increases equipment cost;

2, in the clamping guide rod is set, mold attaching/detaching difficulty, the processing cost of increase plastic products;

3, plastics machinery is for enhancing productivity; mostly between two equipment, establish the manipulator of a common extraction plastics products; guide rod in the tradition clamping brings obstacle for the use of manipulator, thereby influences the raising of production efficiency, is unfavorable for the reduction of goods processing cost.

The purpose of this utility model is that a kind of improved plastics machinery clamping will be provided, and it simplifies the structure of clamping, improves efficiency of equipment, and the rigidity and the precision of energy maintaining body locked mode.

The utility model is achieved in that the later hinged structure of the oil cylinder of clamping is connected with frame, can eliminate the lateral load of oil cylinder, improves its condition of work; The plunger top of oil cylinder is established connecting plate, and hinged structure is connected with moving platen before the connecting plate, is designed to new departure that oil cylinder directly drives template; Establish adjusting device on the preceding free bearing before the moving platen rear side in the hinged structure, when being used for regulating moving platen and just installing to the perpendicularity of guide pass or to the depth of parallelism on fixed form plane; A guided bearing mechanism is respectively established in both sides, moving platen below, and the roller wheel bearing of this mechanism is on guide rail, and guide rail is fixed in frame, thereby guarantees steadily moving and locked mode reliably of moving platen; Fixed form is fixedly arranged on frame, and the working face of fixed form is perpendicular to the guide pass of guide rail.

Oil cylinder of the present utility model directly drives stencil design, make clamping that the complicated bar linkage structure spare that bears strong load no longer is set, also the adjustment template can be set no longer simultaneously, there is not guide rod in the new construction yet, in clamping, do not have link component, adjust the member that template and guide rod etc. are large-scale and the accuracy of manufacture is had relatively high expectations, simplified structure not only, and can reduce the manufacturing cost of equipment significantly; Do not have guide rod in the clamping, give the mounting or dismounting mould and extract product to bring great convenience, and can give full play to the function of extracting the product manipulator, the production efficiency of clamping is improved significantly; Be provided with forward and backward hinged structure, perpendicularity adjusting device and guided bearing mechanism in the mechanism, under the condition of no guide rod, locked mode precision that still can assurance mechanism guaranteeing the high-quality of plastic part, and is improved the oil cylinder condition of work.

Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof.

Fig. 1 is the front elevational schematic of plastics machinery clamping of the present utility model.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is the A-A cutaway view among Fig. 1.

Fig. 4 is the B-B cutaway view among Fig. 1.

Fig. 5 is the action schematic diagram of Fig. 1 middle regulator.

Fig. 6 is the action schematic diagram of template deformation among Fig. 1.

With reference to Fig. 1,2, clamping includes oil cylinder 1, frame 2, the hinged structure 3 in back, connecting plate 4, preceding hinged structure 5, moving platen 6, fixed form 7, adjusting device 8, guided bearing mechanism 9 and guide rail 10.Hinged structure 3 is connected with frame 2 after the oil cylinder 1, the axle 31 of this structure is fixedly arranged on oil cylinder 1 both sides, and be the hinged structure 3 in back that is slidingly matched with two linings 32 assembling of being fixed in frame 2 respectively and make oil cylinder 1 do relative swing around frame 2, can eliminate the harmful effect that oil cylinder is brought by lateral forces.The plunger top of oil cylinder 1 is established connecting plate 4, hinged structure 5 is connected with moving platen 6 before the connecting plate 4, the back free bearing 51 of preceding hinged structure 5 is fixedly arranged on the both sides of connecting plate 4, establish endoporus on the back free bearing 51, respectively install a lining 55 on the endoporus, totally four of the preceding free bearings 52 of preceding hinged structure 5, be fixedly arranged on the both sides of moving platen 6 respectively, plug a back free bearing 51 before per two in the free bearing 52, before, back free bearing 52, respectively establish one 53 on 51 the endoporus, establish a key 54 respectively altogether on free bearing 52 sides before two 53 ends and two, be the one swing with free bearing before keeping 52 and axle 53, preceding hinged structure 5 makes the working face 61 of moving platen 6, vertically swing at it to making trace, when work, fixed form 7 is owing to be subjected to the mold clamping force effect, and its working face can produce micro-deformation, dotted line state as shown in Figure 6, at this moment, moving platen 6 can automatically do corresponding trace swing and on the action of lifting, thereby guarantee the locked mode precision of no guide rod condition lower bolster.Establish an adjusting device 8 on the back free bearing 51 of moving platen 6 rear sides, two springs 83 of adjusting device 8 are located at moving platen 6 belows, two springs 83 are installed in respectively in the hole of two back free bearings 51, two springs, 83 1 ends are held in moving platen 6 other ends and are held in the spring base 82 that is located in the hole, spring base 82 offsets with adjustable bolt 81, this structure can make the pre-compression force of spring 83 adjusted, two of adjusting device 8 is adjusted bolt 86 and is located at moving platen 6 tops, two adjust bolt 86 screws in the screw of adjusting plate 84, as shown in Figure 3, two adjust plate 84 is fixedly arranged on both sides respectively with screw 85 back free bearing 51, the function of adjusting device 8 is, when installing originally, the working face 71 of fixed form 7 in vertical state, require the working face 61 of moving platen 6 in parallel also in vertical state, actual processing, in the assembling process, it is very difficult desiring to reach this purpose, perhaps needing to pay big cost can realize, design adjusting device 8 for this reason, its spring 83 has big rigidity and is held in template alive 6 belows, as shown in Figure 5, when adjusting bolt 86 to sinciput, moving platen 6 turns forward around preceding hinged structure 5 centers from position shown in the dotted line, because the big maintenance of spring 83 rigidity is motionless, moving platen 6 can transfer to the correct upright position of just installing shown in the solid line, adjust the back with nut 87 lockings, otherwise, when adjustment bolt 86 is drawn back, under spring 83 effects, can obtain rightabout adjustment.A guided bearing mechanism 9 is respectively established in both sides, moving platen 6 below, the roller 91 of this mechanism is bearing on the guide rail 10, guide rail 10 is fixed in frame 2, the roller 91 of guided bearing mechanism 9 is installed on the eccentric shaft 92, as shown in Figure 4, roller 91 can be formed by rolling bearing or other high-abrasive material body plans, eccentric shaft 92 1 ends are installed on the lining 94 that is fixed in moving platen 6, its other end is mounted in the hole of pressing plate 93 top moving platens 6, pressing plate 93 is fixedly arranged on the below of moving platen 6, adjust eccentric rotation axis 92, the center line in relative lining 94 of the center line of roller 91 and template 6 holes produces skew, thereby can make guide pass 101 keeping parallelisms of oil cylinder 1 center line and guide rail 10, guided bearing mechanism 9 can move to translation the moving platen 6 that is in cantilever position perpendicular to guide pass 101, and can guarantee the locked mode precision under no guide rod condition simultaneously.Fixed form 7 is fixedly arranged on frame 2 and has the good operation condition, and the working face 71 of fixed form is perpendicular to the guide pass 101 of guide rail 10, and the middle part of moving platen 6 is established and ejected oil cylinder 62.

Claims

1. A plastic mechanical mold clamping mechanism, comprising an oil cylinder (1), a frame (2) and templates (6, 7), the oil cylinder (1) is installed at the rear end of the frame (2), and the oil cylinder (1) A movable template (6) is installed on the top of the plunger, which is characterized in that:

a. The rear hinge structure (3) of the oil cylinder (1) is connected with the frame (2);

b. The top of the plunger of the oil cylinder (1) is provided with a connecting plate (4), and the connecting plate (4) is connected to the front hinge structure (5) and the movable formwork (6);

c, the rear hinge seat (51) on the rear side of the movable formwork (6) is provided with an adjustment device (8) for adjusting the verticality of the movable formwork (6);

d. There is a guide support mechanism (9) on both sides below the movable template (6), the rollers (91) of the guide support mechanism (9) are supported on the guide rail (10), and the guide rail (10) is fixed on the frame (2) ;

e, the fixed template (7) is fixed on the frame (2), and the working plane (71) of the fixed template (7) is perpendicular to the guide rail surface (101) of the guide rail (10).

2. The mold clamping mechanism according to claim 1, characterized in that the shafts (31) of the rear hinge support structure (3) are fixed on both sides of the oil cylinder (1), and are connected to the two linings of the fixed frame (2) respectively. Cover (32) assembly is sliding fit.

3. The mold clamping mechanism according to claim 1, characterized in that the rear hinge seat (51) of the front hinge support structure (5) is fixed on both sides of the connecting plate (4), and the inner hinge seat (51) A bushing (55) is respectively arranged on the hole, and there are four front hinge seats (52) of the front hinge support mechanism (5), which are respectively fixed on both sides of the movable template (6), and every two front hinge seats (52) A rear hinge seat (51) is inserted in the middle, and an axle (53) is respectively established on the inner holes of the front and rear hinge seats (52, 51), and two axles (53) ends and two front hinge seats (52) sides A total of one key (54) is set up respectively.

4. The mold clamping mechanism according to claim 1, characterized in that the two springs (83) of the adjustment device (8) are arranged under the movable template (6), and the two springs (83) are respectively installed on the two rear hinge seats ( In the hole of 51), one end of the two springs (83) is supported on the movable template (6) and the other end is supported on the spring seat (82) located in the hole, and the spring seat (82) is offset against the adjustable bolt (81). The two adjustment bolts (86) of the adjustment device (8) are arranged on the top of the movable template (6), and the two adjustment bolts (86) are screwed in the screw holes of the adjustment plate (85), and the two adjustment plates (85) are respectively fixed on the The rear hinge seats (51) on both sides.

5. The mold clamping mechanism according to claim 1, characterized in that the rollers (91) of the two guide support mechanisms (9) are installed on the eccentric shaft (92), and one end of the eccentric shaft (92) is installed on the movable template ( 6) on the bushing (94), the other end of the eccentric shaft (92) is installed and fixed in the hole of the movable template (6).

6. The mold clamping mechanism according to claim 1 or 2, characterized in that the rollers (91) of the guide support mechanism (9) are rolling bearings.