CN114474745A

CN114474745A - Rotary melting machine

Info

Publication number: CN114474745A
Application number: CN202210227752.6A
Authority: CN
Inventors: 孙华丽; 丁杰; 李辉; 钱杨; 许喜梅; 张航媛
Original assignee: Era Co Ltd
Current assignee: Era Co Ltd
Priority date: 2022-03-08
Filing date: 2022-03-08
Publication date: 2022-05-13
Anticipated expiration: 2042-03-08
Also published as: CN114474745B

Abstract

The invention provides a rotary melting machine, and belongs to the technical field of pipeline production equipment. The device solves the problem that equipment in the prior art is difficult to perform rotary fusion welding on the plastic ball valve. This melt machine soon is equipped with the swing seat in the frame including having table surface, and the actuating mechanism who is equipped with the swing seat in the frame and can drives the swing seat rotation and vertical removal, is equipped with down the carrier on the table surface, and the swing seat is located the carrier under directly over, offers on the swing seat's bottom surface and can supply the bellmouth to place and make the last mounting hole of bellmouth circumferential positioning, has down on the carrier mounting hole just down the bellmouth can be fixed a position in this mounting hole with the welding face state up, and the drill way border of mounting hole is connected with the curb plate of vertical setting down, and the curb plate is the arc plate form and can supply the periphery wall of valve body to support and lean on, sets up the constant head tank of vertical setting on the curb plate topside. The invention has the advantages of high welding quality and simple and convenient welding operation.

Description

Rotary melting machine

Technical Field

The invention belongs to the technical field of pipeline production equipment, and relates to a rotary melting machine.

Background

The plastics ball valve is the very extensive product of drainage field use, as shown in figure 1, among the plastics ball valve, the bellmouth is connected respectively to the both ends of valve body usually, sets up the through-hole that supplies the valve rod to pass on the lateral wall of valve body simultaneously, and the edge of through-hole has annular protruding, has two card archs on this annular bellied terminal surface, and the handle rotates between two card archs, and the rotation of card protruding pair handle forms spacingly to realize the switching of handle switching state. At present, a common plastic ball valve on the market is generally formed by secondary injection molding, namely, after a ball core, a ball rod, a sealing ring and a socket part are subjected to injection molding, an injection mold is put into the plastic ball valve to perform injection molding on a valve body, a handle is installed after the injection molding is completed, the production and assembly of a ball valve product are completed, and the production mode is long in process period and high in cost.

The rotary melting machine is widely applied to the field of processing metal and plastic products, and the contact parts are softened and melted by rotating and rubbing parts welded with each other at high temperature, and are processed into a whole by high pressure. The rotary melting machine (application number: 201210206170.6) disclosed in the Chinese patent document comprises a frame and a workbench, wherein a lower clamp is arranged on the workbench, a fixing plate is arranged on the frame, and a lead screw motor are arranged on the fixing plate; one end of the screw rod is connected with a support frame; the support frame is connected with a lifting plate; a rotating motor is arranged on the lifting plate; and an upper clamp is arranged on the output shaft of the rotating motor. This melt machine soon can make two plastic products link together, nevertheless can't be applicable to the welding equipment of plastics ball valve, and at present, still lack and carry out the melt welding soon to the plastics ball valve specially, and guarantee better welding quality's equipment.

Disclosure of Invention

The invention aims to solve the problems in the prior art, provides a rotary melting machine, and solves the technical problems that: how to realize carrying out the spin-melting welding to plastic ball valve, and guarantee welding quality.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a melt machine soon, is including the frame that has table surface, be equipped with the drive mechanism that upward spin seat and energy band move upward spin seat rotatory and vertical removal in the frame, table surface is last to be equipped with down the carrier, upward spin seat is located down directly over the carrier, its characterized in that, set up on the bottom surface of upward spin seat and supply the bellmouth to place and make the last mounting hole of bellmouth circumference location, have down on the carrier just the bellmouth can fix a position in this lower mounting hole with the up-facing state of welding face down, the drill way border of mounting hole is connected with the curb plate of vertical setting down, the curb plate is arc plate-shaped and can supply the periphery wall of valve body to support and lean on, set up the constant head tank of vertical setting on the curb plate topside.

The drive mechanism is prior art. The rotary melting machine is used in combination with a support member having substantially the same shape as the socket and having the same thickness in the axial direction as the socket after being welded to the valve body. In the actual operation process, the bellmouth is firstly placed in the upper mounting hole of the upper rotating seat, the welding surface of the bellmouth faces downwards, and the bellmouth can be circumferentially positioned in the upper mounting hole at the moment. And (3) placing a supporting component in a lower mounting hole of the lower carrier, vertically placing the valve body (the bellmouths are not welded at the two ends of the valve body at the moment) on the supporting component, and simultaneously inserting the annular bulge on the valve body into the positioning groove to fix the valve body on the lower carrier. And then, opening an equipment switch, rotating the upper rotating base at a high speed while driving the socket to rotate and press down, so that the welding surface of the socket is in contact with the end surface of the valve body, then generating heat by friction, heating and melting the contacted plastic part, immediately stopping rotating the upper rotating base when the lower rotating base is pressed down to a certain stroke, continuing pressing down for a certain distance after stopping rotating, and cooling for a certain time under the state of keeping pressure to finish the welding of one end of the valve body and the socket.

And then, welding the other end of the valve body with the socket, taking the supporting component out of the lower mounting tool, turning the valve body by 180 degrees, and placing the end, welded with the socket, of the valve body into the lower mounting hole, wherein the socket is the same as the supporting component used in the previous operation step and can be positioned in the lower mounting hole. Subsequently, a socket to be welded is put into the upper mounting hole of the upper swivel seat, and the welding between the socket and the valve body is completed in the same operation.

Obviously, this melt machine soon is provided with down the mounting hole owing to be provided with on the lower carrier, and the bellmouth can fix a position in this mounting hole down with the welding face up state, like this when carrying out the twice welding bellmouths in valve body both ends, can select to place support component or the bellmouth that has accomplished the welding in the mounting hole down, guarantee twice welded process valve body's upper end is equal high all the time, avoid the initial height of repeatedly adjusting the top spin seat to lead to the operation complicacy, also can avoid the error of repeatedly adjusting to arouse welding precision's reduction simultaneously, and then promote welding quality.

In addition, the setting of curb plate can supply the periphery wall of valve body to support and lean on, has formed the location to the valve body, and the constant head tank of vertical setting can supply annular arch to insert, carries on spacingly to valve body circumference, makes equipment like this at the spin-weld welding in-process, and valve body stability is good, especially in the twinkling of an eye at last roating seat scram, and higher stability can be guaranteed to the valve body to promote welded quality.

In the rotary melting machine, the bottom of the positioning groove is an arc-shaped concave supporting surface, a socket is placed in the lower mounting hole, and when the end surface of the valve body is welded with the socket, the annular bulge on the valve body is abutted against the supporting surface. The concave holding surface of arc can support and fix a position the annular arch of valve body with the protruding looks adaptation of annular to make the valve body have better stability, promote welded quality. In the above-mentioned melt machine soon, the lower utensil includes being cylindric main part, the lower extreme of main part is connected with the backup pad, the bottom surface of backup pad pastes with table surface and pastes, the hole of main part encloses with the top surface of backup pad and forms foretell lower mounting hole. The supporting plate increases the contact area with the working table surface, so that the stability of the lower carrier is improved.

In the above rotary melting machine, the lower mounting hole is a stepped hole with a large-caliber end facing upward. The lower mounting hole is arranged to be a stepped hole, so that the lower mounting hole is matched with the socket, and the socket has better stability and position precision when being placed in the lower mounting hole, thereby ensuring the welding quality.

In the above rotary melting machine, the side plate is in a semicircular arc shape, and an inner side wall of the side plate is flush with an inner peripheral wall of the main body part. The side plate is in a semicircular arc shape, so that an opening is formed at the side of the side plate to conveniently and quickly place the valve body or the bellmouth into the lower carrier, and further, the operation is convenient. The inside wall of curb plate flushes with the internal perisporium of main part for the inside wall of curb plate and the internal perisporium of main part form the great surface of area, thereby give the better support of valve body, promote the stability of valve body.

In foretell melt machine soon, the left and right sides of lower carrier is equipped with the clamp plate that is the bar respectively, the clamp plate is kept away from the one end spiro union of lower carrier and is had support piece, the other end of clamp plate is the end of exerting pressure, support piece's lower extreme supports and leans on table surface, the edge of backup pad is all pushed down downwards to the end of exerting pressure of clamp plate, the strip groove has been seted up along its length direction on the clamp plate, the strip inslot is equipped with the spiro union piece that supports and leans on the clamp plate top surface, table surface is last to be equipped with the spiro union hole respectively with every spiro union piece corresponding position, the lower extreme threaded connection of spiro union piece is in the spiro union hole that corresponds.

When the lifting device is used, the screw connection piece is screwed down, so that the pressing plates on the left side and the right side respectively press the edges of the supporting plate, and the stability of the lower carrier can be improved. The effect in bar groove makes the position of clamp plate can adjust according to the download utensil of equidimension model not, promotes the commonality. The supporting piece is in threaded connection with the pressing plate, so that the supporting height of the supporting piece can be adjusted, the pressing plate can horizontally press the supporting plate, and the stability of the lower loading tool is high.

In the spin melting machine, the end surface of the pressing end of the pressing plate is a concave arc surface, and the end surface of the pressing end of the pressing plate can abut against the outer peripheral surface of the lower carrier. Because the strip-shaped groove is formed in the pressing plate, the position of the pressing plate can be adjusted, the end face of the pressing end is matched and attached to the outer peripheral face of the lower carrier after adjustment, the positioning effect of the lower carrier is further improved, and particularly in the moment of sudden stop of the upper rotating seat, the lower carrier can guarantee high stability, so that the welding quality is greatly improved.

In the rotary melting machine, the upper mounting hole is a stepped hole with a large-caliber end arranged downwards, and a plurality of positioning grooves are formed in the circumferential direction on the inner circumferential wall of the small-caliber part of the upper mounting hole. Go up the mounting hole and be the step hole for go up mounting hole and bellmouth looks adaptation, make the bellmouth have better stability and position accuracy when placing in last mounting hole, and then promote welded quality. The positioning groove arranged in the circumferential direction can be matched with the bulge on the peripheral wall of the socket, so that the socket cannot rotate relative to the upper rotary seat when being placed in the upper mounting hole.

Compared with the prior art, the rotary melting machine has the following advantages:

1. this melt machine soon is owing to be provided with down the mounting hole on the carrier down, and the bellmouth can fix a position in this mounting hole with the welding face up state, like this when carrying out the twice welding bellmouths in valve body both ends, can select to place support component or accomplished welded bellmouth in the mounting hole down, guarantee twice welded process valve body's upper end height all the time, it is complicated to avoid repeatedly adjusting the initial height that revolves the seat and lead to the operation, also can avoid the error of repeatedly adjusting to arouse welding precision's reduction simultaneously, and then promote welding quality.

2. The last curb plate that is equipped with of download utensil, the setting of curb plate can supply the periphery wall of valve body to support and lean on, has formed the location to the valve body, and the constant head tank of vertical setting can supply annular arch to insert, carries on spacingly to valve body circumference, makes equipment like this at the spin-weld welding in-process, and valve body stability is good, especially in the twinkling of an eye at last roating seat scram, and higher stability can be guaranteed to the valve body to promote welded quality.

Drawings

Fig. 1 is an exploded view of a valve body and a socket in a plastic ball valve.

Fig. 2 is a schematic view of the connection of the valve body and the socket in the plastic ball valve.

Fig. 3 is a schematic perspective view of the rotary melting machine.

Fig. 4 is an enlarged view at a in fig. 3.

FIG. 5 is a schematic view of the working state of the rotary melting machine.

Fig. 6 is a perspective view of the bottom of the upper swivel mount.

In the figure, 1, a valve body; 11. an annular projection; 2. a socket; 3. a frame; 31. a work table; 4. rotating the rotary base upwards; 41. an upper mounting hole; 411. a positioning groove; 5. a lower carrier; 51. a lower mounting hole; 52. a side plate; 53. positioning a groove; 531. a support surface; 54. a main body portion; 55. a support plate; 6. pressing a plate; 61. a pressure applying end; 62. a strip-shaped groove; 7. a support member; 8. a screw member; 9. and (4) bolts.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, in the plastic ball valve, two ends of a valve body 1 generally need to be connected with sockets 2 respectively, meanwhile, a through hole for a valve rod to pass through is formed in a side wall of the valve body 1, an annular protrusion 11 is arranged at an edge of the through hole, two clamping protrusions are arranged on an end face of the annular protrusion 11, a handle rotates between the two clamping protrusions, and the clamping protrusions limit the rotation of the handle to realize the switching of the opening and closing states of the handle. The rotary melting machine is mainly used for manufacturing plastic ball valves, and the bell mouths 2 are respectively welded at two ends of the valve body 1.

As shown in fig. 3 and 4, the rotary melting machine includes a frame 3 having a work table 31, and the frame 3 is provided with an upper rotary seat 4 and a driving mechanism capable of driving the upper rotary seat 4 to rotate and vertically move. The drive mechanism is prior art and therefore not shown in the figures. Under the usual condition, can bring the top spin seat 4 through the motor and rotate, drive top spin seat 4 through screw mechanism simultaneously and reciprocate. Be equipped with down carrier 5 on table surface 31, it is located down carrier 5 directly over to go up swivel mount 4, it can supply bellmouth 2 to place and make the last mounting hole 41 of bellmouth 2 circumference location to have seted up on the bottom surface of last swivel mount 4, it has down mounting hole 51 and bellmouth 2 and can fix a position in this mounting hole 51 with the up state of welding face on 5 to go up to go down, the drill way border of lower mounting hole 51 is connected with the curb plate 52 of vertical setting, curb plate 52 is the arc plate form and can supply the periphery wall of valve body 1 to support and lean on, set up the constant head tank 53 of vertical setting on the curb plate 52 topside.

As shown in fig. 4 and 5, the lower carrier 5 includes a cylindrical main body 54, a support plate 55 is connected to a lower end of the main body 54, a bottom surface of the support plate 55 abuts against the working platform 31, an inner hole of the main body 54 and a top surface of the support plate 55 enclose the lower mounting hole 51, and the lower mounting hole 51 is a stepped hole with a large diameter end facing upward. The side plate 52 is in a semicircular arc shape, and the inner side wall of the side plate 52 is flush with the inner peripheral wall of the main body 54.

As shown in fig. 4, the left and right sides of the lower carrier 5 are respectively provided with a strip-shaped pressing plate 6, one end of the pressing plate 6 far away from the lower carrier 5 is screwed with a supporting piece 7, the other end of the pressing plate 6 is a pressing end 61, the lower end of the supporting piece 7 is abutted against the workbench surface 31, the pressing end 61 of the pressing plate 6 is downwards pressed against the edge of the supporting plate 55, the pressing plate 6 is provided with a strip-shaped groove 62 along the length direction thereof, the strip-shaped groove 62 is internally provided with a screw connector 8 abutted against the top surface of the pressing plate 6, the workbench surface 31 is provided with screw holes corresponding to each screw connector 8, and the lower end of each screw connector 8 is screwed into the corresponding screw connector. The end surface of the pressing end 61 of the pressing plate 6 is a concave arc surface, and the end surface of the pressing end 61 of the pressing plate 6 can abut against the outer peripheral surface of the lower carrier 5. When the lifting device is used, the screw connection pieces 8 are screwed tightly, so that the pressing plates 6 on the left side and the right side respectively press the edges of the supporting plate 55, and the stability of the lower carrier 5 can be improved. The effect of bar groove 62 makes the position of clamp plate 6 can adjust according to the lower carrier 5 of equidimension model not, promotes the commonality. The supporting piece 7 is in threaded connection with the pressing plate 6, so that the supporting height of the supporting piece 7 can be adjusted, the pressing plate 6 can horizontally press the supporting plate 55, and the stability of the lower carrier 5 is guaranteed to be high.

As shown in fig. 4 and 5, the bottom of the positioning groove 53 is an arc-shaped concave supporting surface 531, and when the socket 2 is placed in the mounting hole 51 and the end surface of the valve body 1 is welded to the socket 2, the annular protrusion 11 on the valve body 1 abuts against the supporting surface 531. The concave holding surface 531 of arc can support and fix a position with annular protrusion 11 looks adaptation, the annular protrusion 11 of valve body 1 to make valve body 1 have better stability, promote welded quality.

As shown in fig. 6, the upper mounting hole 41 is a stepped hole with a downward large-caliber end, and a plurality of positioning grooves 411 are circumferentially formed on the inner circumferential wall of the small-caliber portion of the upper mounting hole 41. Go up mounting hole 41 and be the step hole for go up mounting hole 41 and bellmouth 2 looks adaptation, make bellmouth 2 place have better stability and position accuracy when last mounting hole 41, and then promote welded quality. As shown in fig. 1 and 6, the positioning groove 411 is formed in the circumferential direction to fit with a projection formed on the outer circumferential wall of the socket 2, so that the socket 2 is not rotated with respect to the upper rotary base 4 when it is placed in the upper mounting hole 41. In order to fix the socket 2 and prevent it from falling, two bolts 9 are screwed to the upper swivel base 4 to abut against the outer peripheral surface of the socket 2, as shown in fig. 5. Specifically, in the spin-melting machine, during machining, the socket 2 is placed in the upper mounting hole 41 of the upper rotating base 4, the welding surface of the socket 2 faces downward, and the bolt 9 is tightened, so that the socket 2 can be positioned in the upper mounting hole 41. The supporting component is placed in the lower mounting hole 51 of the lower carrier 5, then the valve body 1 (the two ends of the valve body 1 are not welded with the bellmouths 2 at the moment) is vertically placed on the supporting component, and the annular protrusion 11 on the valve body 1 is inserted into the positioning groove 53, so that the valve body 1 is fixed on the lower carrier 5. And then, opening an equipment switch, rotating the upper rotating base 4 at a high speed while pressing down the upper rotating base 4 to enable the welding surface of the socket 2 to be in contact with the end surface of the valve body 1, then generating heat by friction, heating and melting the contacted plastic part, immediately stopping rotating the upper rotating base 4 when pressing down to a certain stroke, continuing pressing down for a certain distance after stopping rotating, and cooling for a certain time under the state of keeping pressure to finish welding one end of the valve body 1 with the socket 2.

Then, the other end of the valve body 1 is welded to the socket 2, at this time, the socket 2 in the lower mounting hole 51 of the lower carrier 5 can be taken out, the valve body 1 is turned over by 180 degrees, and the end of the valve body 1, to which the socket 2 is welded, is placed into the lower mounting hole 51, and the valve body is placed as shown in fig. 5. Subsequently, the socket 2 to be welded is put into the upper mounting hole 41 of the upper rotary seat 4, and the welding between the socket 2 and the valve body 1 is completed in the same operation.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Although 1, a valve body is used more herein; 11. an annular projection; 2. a socket; 3. a frame; 4. rotating the rotary base upwards; 41. an upper mounting hole; 411. a positioning groove; 5. a lower carrier; 51. a lower mounting hole; 52. a side plate; 53. positioning a groove; 531. a support surface; 54. a main body part; 55. a support plate; 6. pressing a plate; 61. a pressure applying end; 62. a strip-shaped groove; 7. a support member; 8. screw, etc., without excluding the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. The utility model provides a melt machine soon, includes frame (3) that has table surface (31), be equipped with on frame (3) and go up swivel mount (4) and can drive the rotatory actuating mechanism with vertical removal of swivel mount (4), be equipped with down carrier (5) on table surface (31), go up swivel mount (4) and be located under carrier (5) directly over, its characterized in that, set up on the bottom surface of going up swivel mount (4) and supply bellmouth (2) to place and make last mounting hole (41) of bellmouth (2) circumferential direction location, have down mounting hole (51) on carrier (5) down and bellmouth (2) can be fixed a position in this mounting hole (51) with the welding face up state, the drill way border of lower mounting hole (51) is connected with curb plate (52) of vertical setting, curb plate (52) are arc platelike and can supply the periphery wall of valve body (1) to lean on, and the top edge of the side plate (52) is provided with a positioning groove (53) which is vertically arranged.

2. The rotary melting machine according to claim 1, characterized in that the bottom of the positioning groove (53) is an arc-shaped concave supporting surface (531), the socket (2) is placed in the lower mounting hole (51), and when the end surface of the valve body (1) is welded with the socket (2), the annular protrusion (11) on the valve body (1) is abutted against the supporting surface (531).

3. The rotary melting machine according to claim 1, wherein the lower carrier (5) comprises a cylindrical main body part (54), a support plate (55) is connected to the lower end of the main body part (54), the bottom surface of the support plate (55) is abutted to the working table (31), and the inner hole of the main body part (54) and the top surface of the support plate (55) enclose to form the lower mounting hole (51).

4. The rotary melting machine according to claim 1, 2 or 3, wherein the lower mounting hole (51) is a stepped hole with a large caliber end facing upwards.

5. The rotary melting machine according to claim 3, wherein the side plates (52) are semi-circular arc shaped, and inner side walls of the side plates (52) are flush with inner peripheral walls of the main body portion (54).

6. The rotary melting machine according to claim 3, wherein the left and right sides of the lower carrier (5) are respectively provided with a strip-shaped pressure plate (6), one end of the pressure plate (6) far away from the lower carrier (5) is screwed with a support piece (7), the other end of the pressure plate (6) is a pressing end (61), the lower end of the supporting piece (7) is abutted against the working table surface (31), the pressing ends (61) of the pressing plates (6) press the edges of the supporting plates (55) downwards, a strip-shaped groove (62) is arranged on the pressing plate (6) along the length direction of the pressing plate, a screw connector (8) which is abutted against the top surface of the pressing plate (6) is arranged in the strip-shaped groove (62), the positions, corresponding to each screwed piece (8), on the working table top (31) are respectively provided with a screwed hole, and the lower end of each screwed piece (8) is in threaded connection with the corresponding screwed hole.

7. The rotary melting machine according to claim 6, wherein the end surface of the pressing end (61) of the pressing plate (6) is a concave arc surface, and the end surface of the pressing end (61) of the pressing plate (6) can abut against the outer peripheral surface of the lower carrier (5).

8. The rotary melting machine according to claim 1, 2 or 3, wherein the upper mounting hole (41) is a stepped hole with a large caliber end facing downwards, and a plurality of positioning grooves (411) are circumferentially arranged on the inner circumferential wall of the small caliber part of the upper mounting hole (41).