CN213559710U - Rotating mechanism for roll forging of screw of injection molding machine - Google Patents

Abstract

The utility model belongs to the technical field of mechanical clamping equipment, in particular to a rotating mechanism for roll forging of a screw rod of an injection molding machine, which comprises a base, wherein a moving device is arranged on the base, a lifting device is arranged on the moving device, a rotating device is arranged on the lifting device, and the rotating device is connected with a workpiece placing plate; the utility model relates to a rotary mechanism for using injection molding machine screw rod blank to turn round to enable the screw rod blank and can once only roll forging, reduced the expense, make the great improvement of material utilization ratio, make the overlap distribute rationally, thereby prolonged the life of forging die, improved the whole quality level of screw rod forging blank, improved economic efficiency.

Description

Rotating mechanism for roll forging of screw of injection molding machine

Technical Field

The utility model relates to a mechanical clamping technical field, concretely relates to a rotary mechanism for being directed at injection molding machine screw rod roll forging.

Background

The roll forging technology is a continuous rotary forming method for producing forgings by using a rolling mode, has the characteristics of stable and quick working process, small equipment size, strong forming capability and the like, is an efficient and precise forming technology, and has good application foundation and application experience in China; the roll forging technology has wide application space and development prospect in the field of material forming, and with the continuous and deep development of the roll forging technology, the roll forging forming mode is applied to many industries, and the forming of a screw blank of an injection molding machine is a good example; the method is characterized in that the method comprises the steps of roughly forming an important part of a plastic extrusion screw in the production and processing of an injection molding machine, wherein the traditional screw processing is to perform rough machining on a round steel blank with the same length and the same diameter of a screw finished product by using a lathe and then perform fine machining, the method is time-consuming and material-consuming, a large amount of raw materials are changed into scrap iron, the material utilization rate is low and is only about 45%, more importantly, the mechanical performance of the screw is also influenced due to the fact that the turning processing of an outer contour damages the continuity of a metal streamline, and therefore the performance requirements of the industry, especially the performance requirements of the extrusion screw of the injection molding machine with large tonnage can not be met; the shape of the screw blank of the injection molding machine is changed greatly, the length of the screw blank can reach 2120mm at most, the diameter of the big end of the largest screw blank is phi 160mm, and a small shaft with phi 90mm and length 280mm is arranged behind the screw blank, so that great difficulty is caused to one-time blank making work.

Because the roll forging machine is mainly used for roll forging of a front beam, a crankshaft and a connecting rod of an automobile originally, the length of the products is relatively small, the diameter of the products is not changed greatly, and because a screw rod blank has a section of shaft diameter at a small end, the blank manufacturing is difficult to complete by adopting a common roll forging method; after process analysis, the screw blank minor axis part adopts three-pass roll forging, the conical part adopts three-pass roll forging, six passes are shared to finish screw blank manufacturing, because the diameter of the screw blank is larger, the width of each pass of the die needs to be about 260mm, the structure of the original 1000mm roll forging machine can only be provided with four-pass roll forging dies and cannot be provided with six-pass dies, and the six-pass roll forging is finished by analyzing and considering two schemes: (1) the blank making and roll forging are completed twice, the heated blank is roll-forged into a conical shape by three times, then the blank is put on one side for cooling, the blank is secondarily heated after cooling, and then the small shaft is roll-forged; (2) the blank making and roll forging are completed at one time, a small shaft part is firstly roll forged, the blank is rotated by 180 degrees, then the small end part is clamped, and a cone shape is roll forged;

and (3) comprehensive analysis: scheme (1) former roll forging machine can directly adopt and need not redesign, but the blank needs twice heating, and the round steel of phi 160mm that 1100mm is long weighs 160 kg more, only heats the electric charge of once intermediate frequency furnace and just needs 50 yuan, needs frequently to change the roll forging mould moreover, and every set of mould is close 3 tons, and is fan-shaped concatenation moreover, and it needs 3 ~ 4 hours to change once, and work efficiency is also low, and the comprehensive cost increases a lot. Scheme (2) redesigning an upper forging roller and a lower forging roller of the roll forging machine; a rotating mechanism needs to be added; although the second solution adds difficulty to the design of the roll forging machine, it is still reasonable to save cost for users.

Therefore, according to the above analysis, a rotating mechanism is required to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a rotary mechanism for being directed at injection molding machine screw rod roll forging, the on-line screen storage device comprises a base, be equipped with the mobile device on the base, be equipped with elevating gear on the mobile device, the last rotary device that is equipped with of elevating gear, rotary device is connected with the work piece and places the board.

As a preferable scheme, the left side of the workpiece placing plate is provided with a stripping device.

As a preferred scheme, rotary device includes the rotation axis, the rotation axis passes through the shaft coupling and is connected with rotary power device, the outside of rotation axis is equipped with the bearing, the outside of bearing is equipped with the bearing housing, the bearing housing is connected with the adapter sleeve, the adapter sleeve is established in the outside of shaft coupling, the bottom and the rotary power device of adapter sleeve are connected.

As a preferred scheme, the moving device comprises slideways arranged on two sides of the base, a sliding rail matched with the slideways is arranged in the slideways, a moving base is connected to the sliding rail, and a lifting device is arranged on the moving base.

As an optimal scheme, be equipped with a pair of bearing between the slide, bearing sets up the both sides at the base, be equipped with the bearing in the bearing, be equipped with the screw support between two bearing, the screw support is connected with the removal base, be equipped with the screw on the screw support, be equipped with in the screw rather than complex lead screw, the both ends of lead screw are fixed in the bearing.

As a preferred scheme, the lifting device comprises a hydraulic support fixed on the movable base, a hydraulic cylinder is mounted on the hydraulic support, the hydraulic cylinder is connected with a slide block connecting seat through a hydraulic rod, the slide block connecting seat is connected with a slide block, the slide block is matched with an inclined slide block support, and the slide block support is fixed on the movable base; the slider is provided with a shell, and a rotating device is arranged in the shell.

As a preferred scheme, the left side of casing is connected with takes off the material device, take off the material device and include the cylinder support of being connected with the casing, install the cylinder on the cylinder support, be connected with the ejection of compact head on the cylinder.

To sum up, the utility model relates to a rotary mechanism for being directed at injection molding machine screw rod roll forging designs the rotary mechanism that is used for using injection molding machine screw rod blank to turn round to enable the screw rod blank can once only roll forging, reduced the expense, make the great improvement of material utilization ratio, make the overlap distribute rationally, thereby prolonged the life of forging die, improved the whole quality level of screw rod forging blank, improve economic efficiency.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a top view of the present invention;

reference numerals:

1. base 2, workpiece placing plate 3, adjusting backing plate 4, rotating shaft 5 and mounting part

6. Coupler 7, rotary power device 8, workpiece 9, upper bearing 10 and lower bearing

11. Bearing sleeve 12, end cover 13, connecting sleeve 14, nut 15 and gasket

16. Retaining ring 17, movable base 18, left slideway 19, right slideway 20 and U-shaped slide rail

21. V-shaped slide rail 22, bearing support 23, nut support 24, nut 25 and lead screw

26. Hydraulic support 27, hydraulic cylinder 28, hydraulic rod 29 and slide block connecting seat

30. Slide block 31, slide block support 32, shell 33, stop block 34 and cylinder support

35. The device comprises a cylinder 36, a material ejecting head 37, a bearing 38, a first end cover 39 and a V-shaped groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that the installation methods, the communication protocols and the technical terms mentioned in the present invention are technical terms that have been known clearly in the art, and thus, the explanation is not repeated. Moreover, the same reference numerals are used for the same components, which do not affect and should not constitute an exact understanding of the technical solutions for a person skilled in the art.

Example 1:

the utility model provides a rotary mechanism for being directed at injection molding machine screw rod roll forging can make the system base roll forging of injection molding machine screw rod once accomplish, and earlier roll forging staff portion presss from both sides tight tip portion again after rotatory 180 degrees with the blank through rotary mechanism, roll forging toper.

A rotating mechanism for roll forging of a screw rod of an injection molding machine comprises a base 1, wherein a moving device is arranged on the base 1, a lifting device is arranged on the moving device, the moving device can drive the lifting device to move back and forth on the base, a rotating device is arranged on the lifting device, the lifting device can drive the rotating device to move up and down, a workpiece placing plate 2 is connected onto the rotating device, the workpiece placing plate 2 is fixedly connected with the rotating device through a bolt, preferably, an adjusting base plate 3 is arranged between the rotating device and the workpiece placing plate 2, the adjusting base plate 3 is connected with the workpiece placing plate 1 and the rotating device through a cylindrical pin, and the adjusting base plate 3 can enable the rotating device to be stressed uniformly, reduce vibration and prolong the service life; preferably, the workpiece placing plate 1 is provided with a V-shaped groove 39, so that the injection molding machine screw blank (also called a workpiece) is placed more stably, and the rotating device can drive the workpiece 8 to rotate; more preferably, the V-shaped grooves on the workpiece placing plate 2 are made of heat-resistant steel 5CrMnMo to prevent the heat generated by the workpiece 8 during the roll forging from deforming and affecting the quality of the rolled workpiece 8.

Specifically, the rotating device comprises a rotating shaft 4, the rotating shaft 4 comprises a mounting part 5, the mounting part 5 is connected with the workpiece placing plate 2, and preferably, the size of the mounting part 5 is the same as that of the workpiece placing plate 2; the rotary shaft 4 is connected with the rotary power device 7 through the coupler 6, the rotary power device 7 drives the rotary shaft 4 to rotate, so that the workpiece 8 is driven to rotate, the rotary power device 7 is preferably a swing hydraulic motor, the type is preferably YMD200 series, the selection is specifically carried out according to specific conditions, and the utility model is not specifically limited; a pair of bearings are arranged on the outer side of the rotating shaft 4, each bearing comprises an upper bearing 9 and a lower bearing 10, a bearing sleeve 11 is arranged on the outer side of each bearing, an end cover 12 is arranged between the upper end of each bearing sleeve 11 and the rotating shaft 4, and the end covers 12 are connected with the upper ends of the bearing sleeves 11 in a screw manner, a cylindrical pin manner and the like; the lower end of the bearing sleeve 11 is connected with the connecting sleeve 13, and the bearing sleeve 11 and the connecting sleeve 13 can be connected in a threaded connection mode, a welding mode, a pin connection mode and the like; the connecting sleeve 13 is arranged on the outer side of the coupler 6, and the bottom of the connecting sleeve 13 is connected with the rotary power device 7 through a screw; preferably, a nut 14 is arranged at the lower end of the upper bearing 9, and a gasket 15 is arranged between the upper bearing 9 and the nut 14 to increase the sealing performance of the upper bearing 9; in order to improve the sealing performance of the lower bearing 10, a retainer ring 16 is arranged below the lower bearing 10.

Specifically, the moving device comprises slideways arranged on two sides of the base 1, a sliding rail matched with the slideways is arranged in the slideways, a moving base 17 is connected to the sliding rail, and a lifting device is arranged on the moving base 17; more specifically, the slide ways comprise a left slide way 18 and a right slide way 19, the left slide way 18 and the right slide way 19 are respectively arranged on two sides of the base 1, the left slide way 18 is a U-shaped slide way, and a U-shaped slide rail 20 matched with the U-shaped slide way is arranged in the U-shaped slide way; the right slideway 19 is a V-shaped slideway, and a V-shaped slide rail 21 matched with the V-shaped slideway is arranged in the V-shaped slideway; the movable base 17 can move back and forth through the slide way and the slide rail; as a preferable scheme, in order to improve the stability and the moving stability of the moving base 17, a pair of bearing supports 22 is arranged between the left slide way 18 and the right slide way 19 in the middle of the base 1, the bearing supports 22 are respectively arranged at two ends of the base 1, a pair of bearing supports 22 are arranged, the bearing supports 22 are connected with the base 1 through cylindrical pins, bolts and other components, a bearing 37 is arranged in each bearing support 22, and the bearing supports 22 are connected with a first end cover 38 through screws; a nut support 23 is arranged between the two bearing supports 22, the nut support 23 and the movable base 17 are fixed in a threaded connection mode, a welding mode and the like, a nut 24 is arranged on the nut support 23, a lead screw 25 matched with the nut 24 is arranged in the nut 24, and two ends of the lead screw 25 are fixed through bearings 37; offer porosely on one of them end cover 38, lead screw 25 clearing hole extends, and lead screw 25 is rotatory, and it is rotatory to drive screw 24 to drive mobile support 17 and remove, cooperation slide and slide rail make and remove base 17 and stabilize the removal, the utility model provides a lead screw, screw and the cooperation of bearing also can refer to prior art device in.

Specifically, the lifting device comprises a hydraulic support 26 fixed on the movable base 17, a hydraulic cylinder 27 is mounted on the hydraulic support 26, the hydraulic cylinder 27 is connected with a slider connecting seat 29 through a hydraulic rod 28, the slider connecting seat 29 is connected with a slider 30, the hydraulic rod 28 can also be directly connected with the slider 30, and a technician can select the hydraulic support according to specific conditions; the sliding block 30 is matched with a sliding block support 31, the sliding block support 31 is in an inclined shape, the sliding block support 31 is fixed on the movable base 17, a shell 32 is arranged on the sliding block 30, and a rotating device is arranged in the shell 32; because the slide block support 31 is inclined, when the hydraulic cylinder 27 pushes the slide block 30 to move left and right, the rotary device can be driven to move up and down; more specifically, the slide block 30 is preferably a dovetail slide block, the slide block seat 31 is a dovetail seat, and the cooperation of the dovetail slide block 30 and the dovetail seat 31 enables the precision of movement to be high, the gap to be adjustable and the bearing capacity to be large; the utility model adopts the inclined slide block support 31, namely, the inclined guide rail can complete the feeding, lifting and returning actions; preferably, a stopper 33 is disposed at one end of the slide holder 31, the stopper 33 is preferably connected to the slide holder 31 by a screw, the stopper 33 prevents the slide holder 31 from being separated from the slide 30, and when the workpiece placing plate 2 is rotated by the rotary power device 7, the rotation is decelerated after rotating to about 150 degrees and then rotated to 180 degrees to prevent the collision with the stopper 33.

Example 2:

the embodiment is different from the embodiment 1 in that the embodiment further comprises a stripping device, wherein the stripping device is used for pushing the workpiece 8, so that the workpiece 8 is better connected with the roll forging device, the working efficiency is improved, and the working precision is improved; specifically, a stripping device is arranged on the left side of the workpiece placing plate 2, and more specifically, the stripping device is arranged on the left side of the housing 32, the stripping device includes a cylinder support 34 connected with the housing 32, the housing 32 and the cylinder support 34 are fixed by welding, threads, cylindrical pins and the like, a cylinder 35 is mounted on the cylinder support 34, one end of the cylinder 35 is connected with a material ejecting head 36, the cylinder 35 drives the material ejecting head 36 to move, so that the workpiece 8 in the workpiece placing plate 2 is pushed to move rightwards, the workpiece 8 is clamped by a roll forging manipulator, and then the roll forging device is used for roll forging the workpiece 8.

The utility model discloses when specifically using, be and cooperate the use with the roller forging device, the utility model discloses can be controlled by switch board or other controlling means, the utility model discloses what protect is rotary mechanism's specific structure, specific control relation the utility model discloses do not do specific repeated here, forge device, switch board with the roller, the utility model discloses connect and form a closed loop operation, can regard as a specific control mode, but not only limit to this kind of control mode, can also adopt other modes that can control, technical staff selects according to specific circumstances can, the utility model discloses do not specific repeated here.

The utility model discloses a theory of operation: the utility model has the main effects that the workpiece 8 after the small diameter is finished by the front three rollers is placed on the workpiece placing plate 2, then the lifting device descends to avoid influencing the normal work of the roll forging machine, and after the lifting device moves to a position where the normal work of the roll forging machine is not influenced, the rotating device is started to drive the workpiece 8 to rotate 180 degrees, so that the workpiece 8 can be turned around; and (3) moving the workpiece 8 after turning around to a position matched with the roll forging device through the matching of the moving device and the lifting device, clamping one end of the turned-around workpiece 8 by a roll forging manipulator of the roll forging device, and performing the roll forging of the rear three passes by the roll forging machine so as to complete the roll forging of the whole six passes.

Example 3:

the embodiment provides a method for roll forging a screw of an injection molding machine by using a rotating mechanism, which specifically comprises the following steps:

s1: the roll forging machine carries out the previous three times of roll forging processing on the small shaft part of the injection molding machine screw rod blank;

s2: after the small shaft part is subjected to roll forging, the rotating mechanism advances and ascends, and the roll forging manipulator places the injection molding machine screw blank on a workpiece placing 2 plate;

s3: the rotating mechanism retreats and descends to the middle position, and the rotating device rotates 180 degrees;

s4: the rotating mechanism advances and ascends, the injection molding machine screw blank is sent into a jaw of the roll forging manipulator, and the rotating mechanism retreats and descends to the original position;

s5: the roll forging manipulator clamps the injection molding machine screw blank;

s6: and (4) withdrawing the roll forging manipulator, and finishing the three-time roll forging processing of the conical part of the injection molding machine screw blank by using a roll forging machine.

As a preferable scheme, the jaw of the roll forging manipulator is a stepped jaw; the body of the roll forging manipulator is arranged on a clamp vehicle, the front end of the roll forging manipulator is provided with a clamp, corresponding blanks can be clamped by replacing a jaw, and a piston rod of a clamp opening and closing oil cylinder drives the clamp to open and close.

As a preferable scheme, in S2, the moving device moves back and forth on the base 1, so as to drive the lifting device and the rotating device to move back and forth on the base 1; the hydraulic cylinder 27 in the lifting device is started to push the slide 30 to move right along the inclined slide support 31, so as to drive the rotating device to move upwards.

As a preferable scheme, in S3, the hydraulic cylinder 27 in the lifting device is started to drive the slider 30 to move leftward along the inclined slider support 31, so as to drive the rotating device to move downward, and the rotating device is moved to the middle position by cooperating with the moving device, that is, the position does not affect the operation of the roll forging device; the rotary power device is started to drive the rotary shaft 4 to rotate, so that the workpiece 8 is driven to rotate by 180 degrees.

The utility model relates to a rotary mechanism for being directed at injection molding machine screw rod roll forging, the design is used for making the rotary mechanism of injection molding machine screw rod blank tune promptly, carry out 3 times roll forging shaping to the staff portion of injection molding machine screw rod blank earlier, then through the rotatory 180 degrees backs of rotary mechanism, carry out back 3 times roll forging shaping to the toper portion of injection molding machine screw rod blank, thereby enable the screw rod blank can once only roll forging, the expense has been reduced, make the great improvement of material utilization ratio, make the overlap reasonable in distribution, thereby the life of forging die has been prolonged, the whole quality level of screw rod forging blank has been improved, comprehensive benefits has been received.

The screw part blank is preformed, the roll forging is performed to form the blank, so that a large amount of raw materials are saved, the utilization rate of the materials is improved, a large amount of processing cost is saved, if the technology is adopted in a large amount, the saved raw materials for China are considerable, the roll forging technology is used for screw blank manufacturing according to experimental data analysis, more than 5000 screw rods are produced every year, more than 400 ten thousand yuan can be saved only by material cost for one year, and the total economic benefit of the saved processing working hour cost is considerable.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The above, only do the preferred embodiment of the present invention, not used to limit the present invention, all the technical matters of the present invention should be included in the protection scope of the present invention for any slight modification, equivalent replacement and improvement of the above embodiments.

Claims (6)

1. The utility model provides a rotary mechanism for being directed at injection molding machine screw rod roll forging, includes base (1), its characterized in that, be equipped with the mobile device on the base, be equipped with elevating gear on the mobile device, the last rotary device that is equipped with of elevating gear, rotary device is connected with the work piece and places board (2).

2. A rotating mechanism for roll forging of screw of injection molding machine according to claim 1, characterized in that the left side of the workpiece placing plate (2) is provided with a stripper.

3. A rotating mechanism for roll forging of screw rods of injection molding machines according to claim 1 or 2, characterized in that the rotating device comprises a rotating shaft (4), the rotating shaft (4) is connected with a rotating power device (7) through a coupler (6), a bearing is arranged on the outer side of the rotating shaft (4), a bearing sleeve (11) is arranged on the outer side of the bearing, the bearing sleeve (11) is connected with a connecting sleeve (12), the connecting sleeve (12) is arranged on the outer side of the coupler (6), and the bottom of the connecting sleeve (12) is connected with the rotating power device (7).

4. A rotating mechanism for roll forging of screw rods of injection molding machines according to claim 3, wherein the moving device comprises slide ways arranged at both sides of the base (1), slide rails matched with the slide ways are arranged in the slide ways, a moving base (17) is connected to the slide rails, and a lifting device is arranged on the moving base (17).

5. A rotating mechanism for roll forging of screw rods of injection molding machines according to claim 4, characterized in that the lifting device comprises a hydraulic support (26) fixed on the moving base (17), a hydraulic cylinder (27) is mounted on the hydraulic support (26), the hydraulic cylinder (27) is connected with a slide block connecting seat (29) through a hydraulic rod (28), the slide block connecting seat (29) is connected with a slide block (30), the slide block (30) is matched with an inclined slide block support (31), and the slide block support (31) is fixed on the moving base (17); a shell (32) is arranged on the sliding block (30), and a rotating device is arranged in the shell (32).

6. A rotating mechanism for roll forging of screw rods of injection molding machines according to claim 5, characterized in that a stripping device is connected to the left side of the housing (32), the stripping device comprises a cylinder support (34) connected with the housing (32), a cylinder (35) is mounted on the cylinder support (34), and a material ejecting head (36) is connected to the cylinder (35).

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