CN201613621U

CN201613621U - Supporting device for rear mold plate of injection molding machine

Info

Publication number: CN201613621U
Application number: CN2009202826044U
Authority: CN
Inventors: 陈建东; 王�华
Original assignee: CHANGZHOU LONGSHENG MACHINERY Co Ltd
Current assignee: CHANGZHOU LONGSHENG MACHINERY Co Ltd
Priority date: 2009-12-25
Filing date: 2009-12-25
Publication date: 2010-10-27
Anticipated expiration: 2019-12-25

Abstract

The utility model relates to a supporting device used for a rear mold plate of an injection molding machine. Four C-shaped bearing grooves are formed in four corners of the lower end surface of the rear mold plate; two holes respectively communicated with the bearing grooves are respectively formed on the symmetrically arranged inner wall and the outer wall of the lower end surface of the rear mold plate; bearings are installed in the bearing grooves; shaft sleeves are closely sleeved on the inner walls of through holes respectively communicated with the bearing grooves and positioned at the lower end of the rear mold plate; concentric shafts respectively have concentric front and rear gears and eccentric middle gears; the four eccentric shafts provided with adjusting screws respectively penetrate the four through holes at the lower end of the rear mold plate; the front gears of the eccentric shafts are respectively matched with the shaft sleeves, and the middle gears of the eccentric shafts are respectively matched with the bearings; the eccentric shafts move through the adjusting screws; and the bearings matched with the eccentric shafts make slight vertical movement under the eccentric action of the eccentric shafts until the four bearings are in a perfect contact with guide rails, and then the rear mold plate and the eccentric shafts are fixed through rivets. The provided supporting device comprising the four bearings and provided with eccentric shafts can always keep the rear mold plate to easily slide under the condition of high speed and heavy loads.

Description

The bracing or strutting arrangement of injection machine rear pattern plate

Technical field

The utility model relates to the injection machine field, specifically, relates to the bracing or strutting arrangement that is used to make the injection machine rear pattern plate that rear pattern plate easily slides on can the guide rail in frame under the high speed heavy burden situation on a kind of rear pattern plate that is installed in large size plastic jetting-moulding device.

Background technology

The bottom surface of original large size plastic jetting-moulding device rear pattern plate is directly to contact with the rack rail face, and reciprocating thereon, because the rear pattern plate deadweight, make the frictional force between rear pattern plate and rack rail very big, influence the sliding speed of rear pattern plate, and the surface of friction pair is sharply worsened, influence is operation normally.

Summary of the invention

The purpose of this utility model is the defective that overcomes prior art, provides a kind of bearing by four band eccentric shafts bracing or strutting arrangement that constitute, that can remain rear pattern plate light injection machine rear pattern plate that slides under high-speed overload.

The technical scheme that realizes above-mentioned purpose is: a kind of bracing or strutting arrangement of injection machine rear pattern plate, comprise rear pattern plate, guide rail and frame, on rear pattern plate one side, there are four band through holes at following two ends and become the arm of integral body with rear pattern plate, be fixed with the strip guide rail that adopts steel band to support on the both sides of frame, also comprise axle sleeve, eccentric shaft, bearing and adjustment screw, on four jiaos four C type bearing grooves are arranged in the lower surface of rear pattern plate and in the symmetry of the lower surface of rear pattern plate, two holes that communicate with bearing groove are respectively arranged on the outer wall, bearing is installed in bearing groove, axle sleeve is notch cuttype, and tightly be enclosed within on the inwall of through hole of the rear pattern plate lower end that communicates with bearing groove, eccentric shaft is a multidiameter, front and back crosspiece is concentric, middle bay off-centre, on the end face of eccentric shaft, there are two screws to be used to install adjustment screw, four eccentric shafts that have an adjustment screw pass four through holes of rear pattern plate lower end respectively and the preceding shelves of eccentric shaft cooperate with axle sleeve, the middle bay of eccentric shaft cooperates with bearing, use the adjustment screw eccentric rotation axis, utilize the wobbler action of eccentric shaft to make the bearing that cooperates with the middle bay of eccentric shaft do small moving up and down, reach best until four bearings and guide rail and contact, with the junction of the edges of two sheets of paper screw rear pattern plate and eccentric shaft are fixed then.

After adopting technique scheme, because being installed in the bottom of rear pattern plate, the bracing or strutting arrangement that the bearing by four band eccentric shafts constitutes replace original direct bottom surface to contact with rack rail with the injection machine rear pattern plate, and adjustment screw is installed on the eccentric shaft, can use the adjustment screw eccentric rotation axis, wobbler action by eccentric shaft make with eccentric shaft in the bearing that cooperates of bay do small moving up and down and reach the best until four bearings and guide rail and contact, bottom surface that so will original rear pattern plate becomes with the sliding-contact on the surface of guide rail that bearing contacts with the rolling on the surface of guide rail and by the adjusting eccentric shaft contact position is adjusted to optimum state, thereby avoid rear pattern plate directly to the friction on rack rail surface, guarantee rear pattern plate under the situation of high-speed overload, easily to slide and bearing and guide rail surface are not damaged, also can reduce the consumption of energy simultaneously.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the A-A profile of Fig. 1.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is described in further detail.

As shown in Figure 1, a kind of bracing or strutting arrangement of injection machine rear pattern plate, comprise rear pattern plate 1, guide rail 7 and frame 8, on rear pattern plate 1 one sides, following two ends have four band through holes and with the arms 2 of 10 one-tenths of rear pattern plates integral body, be fixed with the strip guide rail 7 that adopts steel band to support on the both sides of frame 8, also comprise axle sleeve 4, eccentric shaft 5, bearing 6 and adjustment screw 9, on four jiaos four C type bearing grooves 3 are arranged in the lower surface of rear pattern plate 1 and in the symmetry of the lower surface of rear pattern plate 1, two holes that communicate with bearing groove 3 are respectively arranged on the outer wall, bearing 6 is installed in bearing groove 3, axle sleeve 4 is notch cuttype, and tightly be enclosed within on the inwall of through hole of rear pattern plate 1 lower end that communicates with bearing groove 3, eccentric shaft 5 is a multidiameter, front and back crosspiece is concentric, middle bay off-centre, on the end face of eccentric shaft 5, there are two screws to be used to install adjustment screw 9, four eccentric shafts 5 that have an adjustment screw 9 pass four through holes of rear pattern plate 1 lower end respectively and the preceding shelves of eccentric shaft 5 cooperate with axle sleeve 4, the middle bay of eccentric shaft 5 cooperates with bearing 6, with adjustment screw 9 eccentric rotation axis 5, utilize the wobbler action of eccentric shaft 5 to make the bearing 6 that cooperates with the middle bay of eccentric shaft 5 do small moving up and down, reach best until four bearings 6 and guide rail 7 and contact, with junction of the edges of two sheets of paper screw 10 rear pattern plate 1 and eccentric shaft 5 are fixed then.Bearing 6 preferably adopts rolling bearing.

Operation principle of the present utility model is as follows:

As shown in Figure 1, because bracing or strutting arrangement that the bearing 6 by four band eccentric shafts 5 constitutes is installed in the bottom of rear pattern plate 1 to be contacted with guide rail 7 on the frame 8, and adjustment screw 9 is installed on the eccentric shaft 5, with adjustment screw 9 eccentric rotation axis 5, wobbler action by eccentric shaft 5 make with eccentric shaft 5 in the bearing 6 that cooperates of bay do small moving up and down and reach best until four bearings 6 and guide rail 7 and contact, usefulness junction of the edges of two sheets of paper screw 10 is fixed rear pattern plate 1 and eccentric shaft 5 then; During use, by motor driving gear, gear driven rear pattern plate 1, the bracing or strutting arrangement that the bearing 6 by four band eccentric shafts 5 on the rear pattern plate 1 is constituted moves back and forth along the guide rail 7 on the frame 8.

Claims

1. the bracing or strutting arrangement of an injection machine rear pattern plate, comprise rear pattern plate (1), guide rail (7) and frame (8), on rear pattern plate (1) one side, there are four band through holes at following two ends and become the arm (2) of integral body with rear pattern plate (10), be fixed with the strip guide rail (7) that adopts steel band to support on the both sides of frame (8), it is characterized in that: also comprise axle sleeve (4), eccentric shaft (5), bearing (6) and adjustment screw (9), four C type bearing grooves (3) are arranged and on four jiaos in the lower surface symmetry of rear pattern plate (1) in the lower surface of rear pattern plate (1), two holes that communicate with bearing groove (3) are respectively arranged on the outer wall, bearing (6) is installed in bearing groove (3), axle sleeve (4) is notch cuttype, and tightly be enclosed within on the inwall of through hole of rear pattern plate (1) lower end that communicates with bearing groove (3), eccentric shaft (5) is a multidiameter, front and back crosspiece is concentric, middle bay off-centre, on the end face of eccentric shaft (5), there are two screws to be used to install adjustment screw (9), four eccentric shafts (5) that have an adjustment screw (9) pass four through holes of rear pattern plate (1) lower end respectively and the preceding shelves of eccentric shaft (5) cooperate with axle sleeve (4), the middle bay of eccentric shaft (5) cooperates with bearing (6), with adjustment screw (9) eccentric rotation axis (5), utilize the wobbler action of eccentric shaft (5) to make the bearing (6) that cooperates with the middle bay of eccentric shaft (5) do small moving up and down, reach best until four bearings (6) and guide rail (7) and contact, use junction of the edges of two sheets of paper screw (10) that rear pattern plate (1) and eccentric shaft (5) are fixed then.