CN110856983B

CN110856983B - Plastic welding machine

Info

Publication number: CN110856983B
Application number: CN201810960935.2A
Authority: CN
Inventors: 李辉清
Original assignee: Huizhou Yipin Technology Co ltd
Current assignee: Huizhou Yipin Technology Co ltd
Priority date: 2018-08-22
Filing date: 2018-08-22
Publication date: 2022-01-04
Anticipated expiration: 2038-08-22
Also published as: CN110856983A

Abstract

The invention relates to a plastic welding machine. The plastic welding machine comprises a base, a connecting plate, a machine body, a rack, an adjusting handle, a gear, an air supporting assembly and a vibrator; the cantilever part is provided with a containing cavity and a through hole which are communicated; the connecting plate is positioned in the accommodating cavity and connected with the base; the machine body is connected with the cantilever part in a sliding way, and a space exists between the projection of the machine body on the base body and the projection of the connecting part on the base body; the rack is positioned in the through hole and moves relative to the cantilever part; the adjusting handle is arranged in the cantilever part in a penetrating way and is rotationally connected with the cantilever part, and the adjusting handle is rotationally connected on the connecting plate; the other end of the air supporting component is connected with the cantilever part, and the meshing transmission direction of the gear and the rack is parallel to the telescopic direction of the air supporting component. The air supporting component plays a role in auxiliary supporting, reduces resistance borne by meshing transmission of the gear and the rack, solves the problem that the lifting adjusting process of the traditional plastic welding machine is heavy and labor-consuming, and enables the plastic welding machine to be good in use convenience.

Description

Plastic welding machine

Technical Field

The invention relates to the technical field of plastic welding, in particular to a plastic welding machine.

Background

The ultrasonic plastic welding machine is characterized in that ultrasonic waves are transmitted to plastic processing parts through a welding head, namely the ultrasonic waves are transmitted to the plastic processing parts through a vibrator, so that the two plastic joint surfaces are severely rubbed under the action of the ultrasonic waves, and the friction heat generated by the friction causes the plastic joint surfaces to be melted to finish the gluing. The ultrasonic plastic welding technology has the advantages of high speed, firm welding line and the like, and more importantly, the production and processing of plastic products can be automated. Ultrasonic plastic welding machines are used to perform operations such as welding, embedding, forming, riveting, spot welding, cutting, sewing, etc. on plastic.

The lifting adjusting process of the traditional plastic welding machine is heavy and laborious, so that the use convenience of the plastic welding machine is poor. In addition, the plastic welding machine has the problem of backward tilting in the welding stress process, and the stability is poor.

Disclosure of Invention

Therefore, the plastic welding machine is needed to be provided aiming at the problems of poor use convenience and poor stability of the plastic welding machine.

A plastic welder, comprising:

the base comprises a base body, a connecting part and a cantilever part, wherein the connecting part extends towards the direction far away from the base body on the top surface of the base body, the cantilever part extends towards the direction far away from the base body on the connecting part, and the projection area of the cantilever part on the base body is larger than that of the connecting part on the base body; the cantilever part is provided with an accommodating cavity and a through hole which are communicated;

the connecting plate is positioned in the accommodating cavity and connected with the cantilever part;

the body is connected with the cantilever part in a sliding manner, and a distance exists between the projection of the body on the base body and the projection of the connecting part on the base body;

the rack is positioned in the through hole and moves relative to the cantilever part, and the rack is connected with the machine body;

the adjusting handle penetrates through the cantilever part and is rotationally connected with the cantilever part, and the adjusting handle is rotationally connected to the connecting plate;

the gear is sleeved on the adjusting handle and meshed with the rack;

one end of the air supporting component is connected with the rack, the other end of the air supporting component is connected with the cantilever part, and the meshing transmission direction of the gear and the rack is parallel to the stretching direction of the air supporting component; and

the vibrator is arranged on the machine body.

When the plastic welding machine is used for welding, firstly, a workpiece to be welded is arranged on the base body, then the relative movement position of the cantilever part and the machine body is adjusted so as to adjust the distance between the vibrator on the machine body and the workpiece to be welded on the base body, namely, the cantilever part and the machine body slide relatively to preset displacement, specifically, the adjusting handle is rotated, as the adjusting handle is arranged on the cantilever part in a penetrating way and is rotatably connected with the cantilever part, the adjusting handle is rotatably connected on the connecting plate, the gear is sleeved on the adjusting handle, and the adjusting handle drives the gear to rotate relative to the connecting plate, so that the gear and the rack are meshed for transmission; because the rack is positioned in the through hole and moves relative to the cantilever part, the rack is connected with the machine body, the connecting plate is positioned in the accommodating cavity and is connected with the cantilever part, the meshing transmission between the gear and the rack ensures that the cantilever part and the machine body slide relatively, because one end of the air supporting component is connected with the rack, the other end is connected with the cantilever part, and the meshing transmission direction of the gear and the rack is parallel to the stretching direction of the air supporting component, thus, when the adjusting handle is rotated, the air supporting component acts on the rack and the base, the air supporting component plays an auxiliary supporting role, the resistance born by the meshing transmission of the gear and the rack is reduced, the torque required by the rotation of the adjusting handle is reduced, so that the relative movement position of the base and the machine body can be adjusted more conveniently, the problem that the lifting adjusting process of the traditional plastic welding machine is heavy and laborious is solved, and the use convenience of the plastic welding machine is better; because the projection area of the cantilever part on the base body is larger than the projection area of the connecting part on the base body, namely the part of the cantilever part is a suspended overhanging structure, the cantilever part is in a cantilever structure, the mass center of the base is arranged at the periphery of the base, and the projection of the machine body on the base body and the projection of the connecting part on the base body are spaced, namely the projection of the machine body on the base body and the projection of the connecting part on the base body are not crossed and separated, the machine body is connected on the overhanging structure of the cantilever part in a sliding way, the projection of the machine body on the base body is a first projection area, the projection of the connecting part on the base body is a second projection area, namely the projection of the mass center of the base on the base body is positioned between the first projection area and the second projection area, namely the mass center of the plastic welding machine is positioned at the front position of the base, and the problem of backward pitching can not occur when the plastic welding machine is stressed during welding, namely, the stability of the plastic welding machine is better.

In one embodiment, the connecting plate comprises a plate body and a first supporting platform, an avoiding groove corresponding to the through hole is formed in the plate body, the air supporting assembly is located in the avoiding groove, and the adjusting handle is arranged on the first supporting platform in a penetrating manner and is rotatably connected with the first supporting platform; the air supporting assembly is positioned in the avoidance groove, so that the space occupied by the air supporting assembly in the accommodating cavity is smaller, and the structure of the plastic welding machine is more compact; the adjusting handle penetrates through the first supporting platform and is connected with the first supporting platform in a rotating mode, and the adjusting handle is connected to the connecting plate in a rotating mode.

In one of them embodiment, the connecting plate still includes the second brace table, first brace table with second brace table parallel arrangement in on the plate body, just the gear is located first brace table with between the second brace table, adjust the handle still with the second brace table rotates to be connected, because adjust the handle and rotate with first brace table and second brace table respectively and be connected, and the gear is located between first brace table and the second brace table, make the support mode of adjusting the handle be simple beam bearing structure to it is more steady along with adjusting the handle rotation in-process to make the gear, ensures that the gear and rack toothing transmission is more accurate.

In one embodiment, the connecting part is further provided with a cavity communicated with the accommodating cavity, so that the weight of the base can be reduced, and the materials of the base are saved.

In one embodiment, the gas supporting assembly comprises a cylinder and a gas supporting rod, the cylinder is coaxially arranged with the supporting rod and is connected with the supporting rod in a sliding mode, the end, far away from the supporting rod, of the cylinder is connected with the rack, and the end, located outside the cylinder, of the gas supporting rod is connected with the base; when the base and the machine body slide relatively, the cylinder body and the support rod slide relatively to each other, so that the air supporting component extends or shortens.

In one embodiment, the air supporting assembly further includes a first mounting seat and a second mounting seat, the first mounting seat is connected to the rack and the end of the cylinder respectively, and the second mounting seat is connected to the base and the end of the air supporting rod respectively, so that one end of the air supporting assembly is connected to the rack and the other end of the air supporting assembly is connected to the cantilever.

In one embodiment, the cantilever part comprises a main body and a sliding plate which are connected, the accommodating cavity is arranged on the main body, the adjusting handle is arranged on the main body in a penetrating way, the penetrating hole comprises a first sub-hole arranged on the sliding plate and a second sub-hole arranged on the main body, and the racks are respectively positioned in the first sub-hole and the second sub-hole; the machine body is connected to the sliding plate in a sliding mode, so that the machine body is connected with the cantilever part in a sliding mode.

In one embodiment, the sliding plate is provided with a sliding groove communicated with the first branch hole, the machine body is provided with a boss, and the boss is positioned in the sliding groove and is in sliding connection with the sliding plate, so that the sliding between the sliding plate and the machine body is more stable.

In one embodiment, the plastic welding machine further comprises a locking handle, a connecting shaft and a pressing block;

the locking handle is connected with one end of the connecting shaft;

the connecting shaft is respectively arranged in the main body and the sliding plate in a penetrating way, and is respectively connected with the main body and the sliding plate in a rotating way;

the pressing block is provided with a threaded hole, and part of the connecting shaft is positioned in the threaded hole and is in threaded connection with the pressing block; the sliding plate is provided with a groove communicated with the sliding groove, and the pressing block is positioned in the groove and is in sliding connection with the sliding plate; the pressing block is used for abutting against the boss; the locking handle is rotated in the forward direction, the locking handle drives the connecting shaft to rotate, so that the connecting shaft rotates relative to the main body and the pressing block respectively; when the relative sliding position between the machine body and the cantilever part needs to be adjusted, the locking handle is rotated along the reverse direction, the locking handle drives the connecting shaft to rotate, the connecting shaft drives the pressing block to leave the boss, and then the adjusting handle is rotated, so that the adjustment of the relative sliding position between the machine body and the cantilever part is completed.

In one embodiment, the end of the pressing block, which is far away from the connecting shaft, is provided with a wedge-shaped surface, the boss is provided with an inclined surface matched with the wedge-shaped surface, and the wedge-shaped surface is used for abutting against the inclined surface, so that the pressing block is better abutted against the boss, and the relative sliding between the boss and the sliding plate is better avoided.

Drawings

FIG. 1 is a schematic view of an embodiment of a plastic welder;

FIG. 2 is another schematic view of the plastic welder shown in FIG. 1;

FIG. 3 is a partial schematic view of the plastic welder shown in FIG. 1;

FIG. 4 is a cross-sectional view of the plastic welder shown in FIG. 1;

FIG. 5 is an enlarged view of a portion of the plastic welder shown in FIG. 4;

FIG. 6 is another partial schematic view of the plastic welder shown in FIG. 1;

FIG. 7 is an exploded view of the plastic welder shown in FIG. 1;

FIG. 8 is a schematic view of a stand of the plastic welder shown in FIG. 7;

FIG. 9 is a partial schematic view of the plastic welder shown in FIG. 1;

FIG. 10 is a partial schematic view at A of the plastic welder shown in FIG. 9;

FIG. 11 is a partial schematic view of the plastic welder shown in FIG. 9 at B;

FIG. 12 is an exploded view of the plastic welder shown in FIG. 9.

Detailed Description

To facilitate an understanding of the present invention, a plastic welder will now be described more fully with reference to the accompanying drawings. The preferred embodiment of the plastic welder is shown in the drawings. However, the plastic welder may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the plastic welder herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

For example, a plastic welding machine includes a base, a web, a body, a rack, an adjustment handle, a gear, an air bearing assembly, and a vibrator; the base comprises a base body, a connecting part extending towards the direction far away from the base body on the top surface of the base body, and a cantilever part extending towards the direction far away from the base body on the connecting part, wherein the projection area of the cantilever part on the base body is larger than that of the connecting part on the base body; the cantilever part is provided with an accommodating cavity and a through hole which are communicated; the connecting plate is positioned in the accommodating cavity and connected with the base; the body is connected with the cantilever part in a sliding manner, and a distance exists between the projection of the body on the base body and the projection of the connecting part on the base body; the rack is positioned in the through hole and moves relative to the cantilever part, and the rack is connected with the machine body; the adjusting handle penetrates through the cantilever part and is rotationally connected with the cantilever part, and the adjusting handle is rotationally connected to the connecting plate; the gear is sleeved on the adjusting handle, and the gear is meshed with the rack; one end of the air supporting component is connected with the rack, the other end of the air supporting component is connected with the cantilever part, and the meshing transmission direction of the gear and the rack is parallel to the stretching direction of the air supporting component; the vibrator is arranged on the machine body.

As shown in fig. 1-3, an embodiment of a plastic welder 10 includes a base 100, an attachment plate 200, a body 300, a rack 400, an adjustment handle 500, a gear 600, an air bearing assembly 700, and a jar 1700.

Referring to fig. 4, the base 100 includes a base body 105, a connecting portion 106 extending on a top surface of the base body 105 in a direction away from the base body 105, and a cantilever portion 107 extending on the connecting portion 106 in a direction away from the base body 105. The projection area of the cantilever part on the base body is larger than that of the connecting part on the base body. The cantilever part is provided with an accommodating cavity 102 and a through hole 104 which are communicated. In this embodiment, the base body, the connecting portion and the cantilever portion are integrally formed, so that the structure of the base is compact.

The connecting plate 200 is located in the accommodating cavity 102 and connected with the cantilever part 107. The body 300 is slidably connected to the cantilever portion 107. The projection of the machine body on the base body is separated from the projection of the connecting part on the base body. A rack 400 is located in the through hole 104 and moves relative to the cantilever portion 107, the rack being connected to the fuselage. The adjusting handle 500 is inserted into the cantilever part and is rotatably connected with the cantilever part, and the adjusting handle is rotatably connected to the connecting plate. The gear 600 is sleeved on the adjusting handle, and the gear is meshed with the rack to enable the gear and the rack to be meshed for transmission.

One end of the air bearing assembly 700 is connected to the rack, and the other end of the air bearing assembly is connected to the cantilever 107. The engaging transmission direction of the gear 600 and the rack 400 is parallel to the extending and retracting direction of the air supporting assembly. In this embodiment, the through hole is a kidney-shaped hole. In one embodiment, the connecting plate is welded or glued to the base so that the connecting plate is firmly connected with the base.

The vibrator 1700 is disposed on the body 300. In this embodiment, the vibrator is an ultrasonic transducer, i.e. an ultrasonic welding head, and converts a high-frequency ultrasonic frequency signal into high-frequency mechanical vibration, so that the temperature transmitted to the weld crater is increased by the friction between the surface and the molecules of the product to be welded, thereby completing the welding of the product to be welded.

The plastic welding machine is characterized in that when in welding, workpieces to be welded are firstly arranged on the base body, then the relative movement position of the cantilever part and the machine body is adjusted, so that the distance between the vibrator on the machine body and the workpieces to be welded on the base body is adjusted, even if the cantilever part and the machine body slide relatively for preset displacement, specifically, the adjusting handle is rotated. Because the rack is positioned in the through hole and moves relative to the cantilever part, the rack is connected with the machine body, the connecting plate is positioned in the accommodating cavity and is connected with the cantilever part, the meshing transmission between the gear and the rack ensures that the cantilever part and the machine body slide relatively, because one end of the air supporting component is connected with the rack, the other end is connected with the cantilever part, and the meshing transmission direction of the gear and the rack is parallel to the stretching direction of the air supporting component, thus, when the adjusting handle is rotated, the air supporting component acts on the rack and the base, the air supporting component plays an auxiliary supporting role, the resistance born by the meshing transmission of the gear and the rack is reduced, the torque required by rotation of the adjusting handle is reduced, so that the relative movement position of the base and the machine body can be adjusted more conveniently, the problem that the lifting adjusting process of the traditional plastic welding machine is heavy and laborious is solved, and the use convenience of the plastic welding machine is better. Because the projection area of the cantilever part on the base body is larger than the projection area of the connecting part on the base body, namely the part of the cantilever part is a suspended overhanging structure, the cantilever part is in a cantilever structure, the mass center of the base is arranged at the periphery of the base, and the projection of the machine body on the base body and the projection of the connecting part on the base body are spaced, namely the projection of the machine body on the base body and the projection of the connecting part on the base body are not crossed and separated, the machine body is connected on the overhanging structure of the cantilever part in a sliding way, the projection of the machine body on the base body is a first projection area, the projection of the connecting part on the base body is a second projection area, namely the projection of the mass center of the base on the base body is positioned between the first projection area and the second projection area, namely the mass center of the plastic welding machine is positioned at the front position of the base, and the problem of backward pitching can not occur when the plastic welding machine is stressed during welding, namely, the stability of the plastic welding machine is better.

As shown in fig. 3, in order to make the structure of the plastic welding machine more compact, in one embodiment, an avoiding groove 202 corresponding to the through hole 104 is formed on the connecting plate 200, and the air supporting assembly 700 is located in the avoiding groove 202, so that the space occupied by the air supporting assembly in the accommodating cavity is smaller, and the structure of the plastic welding machine is more compact. In one embodiment, the connection plate 200 includes a plate body 220 and a first supporting platform 230, the avoiding groove 202 is opened on the plate body 220, and the adjusting handle 500 is inserted into the first supporting platform 230 and is rotatably connected to the first supporting platform 230, so that the adjusting handle 500 is rotatably connected to the connection plate 200.

As shown in fig. 3 and 4, in order to ensure that the gear and rack engagement transmission is more accurate, in one embodiment, the connecting plate 200 further includes a second supporting platform 240, the first supporting platform 230 and the second supporting platform 240 are disposed on the plate 220 in parallel, and the gear 600 is located between the first supporting platform 230 and the second supporting platform 240. The adjustment handle 500 is also rotatably connected to the second support platform 240. Because adjust the handle and rotate with first supporting bench and second supporting bench respectively and be connected, and the gear is located between first supporting bench and the second supporting bench, make the support mode of adjusting the handle be simple beam bearing structure to it is more steady along with adjusting the handle rotation in-process to make the gear, ensures that the gear and rack meshing transmission is more accurate. In one embodiment, the plate is welded or glued to the base so that the plate is firmly connected to the base. In one embodiment, the first support platform and the second support platform are welded to the board body, such that the first support platform and the second support platform are fixedly connected to the board body.

In one embodiment, the connecting part is further provided with a cavity communicated with the accommodating cavity, so that the weight of the base can be reduced, the material of the base is saved, and the manufacturing cost of the plastic welding machine is greatly reduced.

As shown in FIG. 3, in one embodiment, the gas bearing assembly 700 comprises a cylinder 710 and a gas strut 720, wherein the cylinder is coaxially arranged and slidably connected with the gas strut. The end part of the cylinder body, which is far away from the supporting rod, is connected with the rack, and the end part of the air supporting rod, which is positioned outside the cylinder body, is connected with the base. When the base and the machine body slide relatively, the cylinder body and the support rod slide relatively to each other, so that the air supporting component extends or shortens.

In one embodiment, the air bearing assembly 700 further includes a first mount 730 and a second mount 740. The first mounting seat 730 is connected to the rack 400 and the end of the cylinder 710, respectively. The second mounting seat 740 is connected to the end portions of the base 100 and the air supporting rod 720, respectively, so that one end of the air supporting assembly is connected to the rack, and the other end is connected to the cantilever portion.

As shown in fig. 4 and 5, in one embodiment, the cantilever portion 107 includes a main body 110 and a sliding plate 120 connected together. The receiving cavity 102 is opened on the main body 110. The adjustment handle 500 is inserted through the body 110. The through hole 104 includes a first sub-hole 122 opened in the sliding plate 120 and a second sub-hole 112 opened in the main body 110. The rack 400 is located in the first and

second sub-holes

122 and 112, respectively. The machine body is connected to the sliding plate in a sliding mode, so that the machine body is connected with the cantilever part in a sliding mode.

As shown in fig. 5 and 6, in one embodiment, the sliding plate 120 is provided with a sliding slot 124 communicating with the first branch hole 122. The machine body 300 is provided with a boss 302, and the boss 302 is positioned in the sliding groove 124 and is in sliding connection with the sliding plate 120, so that the sliding between the sliding plate and the machine body is more stable.

As shown in fig. 5 and 6, in one embodiment, the plastic welding machine 10 further includes a locking handle 800, a connecting shaft 900, and a pressing block 1100. The locking handle is connected with one end of the connecting shaft. The connecting shaft 900 is respectively inserted into the main body 110 and the sliding plate 120, and the connecting shaft is respectively rotatably connected with the main body 110 and the sliding plate 120. The pressing block 1100 is provided with a threaded hole 1110, and a part of the connecting shaft 900 is located in the threaded hole 1110 and is in threaded connection with the pressing block 1100. The sliding plate 120 is provided with a groove 126 communicated with the sliding groove 124, and the pressing block 1100 is positioned in the groove 126 and is connected with the sliding plate 120 in a sliding manner. The pressing block 1100 is configured to abut against the boss 302. The locking handle is rotated along the forward direction, the locking handle drives the connecting shaft to rotate, the connecting shaft is enabled to rotate relative to the main body and the pressing block respectively, and due to the fact that the pressing block is connected with the connecting shaft in a threaded mode, the pressing block slides relative to the sliding plate until the pressing block abuts against the boss, and relative sliding between the boss and the sliding plate is avoided. When the relative sliding position between the machine body and the cantilever part needs to be adjusted, the locking handle is rotated along the reverse direction, the locking handle drives the connecting shaft to rotate, the connecting shaft drives the pressing block to leave the boss, and then the adjusting handle is rotated, so that the adjustment of the relative sliding position between the machine body and the cantilever part is completed.

In one embodiment, a wedge surface 1120 is arranged at an end of the pressing block 1100 away from the connecting shaft 900, an inclined surface 303 adapted to the wedge surface 1120 is arranged on the boss 302, and the wedge surface is used for abutting against the inclined surface, so that the pressing block is better abutted against the boss, and the relative sliding between the boss and the sliding plate is better avoided. In this embodiment, the cross section of boss is trapezoidal form, makes the slip between boss and the slide more steady, and the compact heap better butt on the boss.

As shown in FIG. 7, in one embodiment, the plastic welder 10 further includes a seat 1200, a positioning ball 1300, and a locking screw (not shown). The base body 105 defines a plurality of first threaded holes 1052 and receiving holes 1054. In the present embodiment, the plurality of first threaded holes 1052 are distributed around the receiving hole 1054 such that the receiving hole is located between the plurality of first threaded holes. Referring to fig. 8, the seat 1200 is provided with a plurality of through holes 1210 and positioning slots 1220. The through holes are communicated with the first threaded holes in a one-to-one correspondence mode. The positioning hole is communicated with the accommodating groove. The positioning groove is located at the center of the seat.

The positioning balls 1300 are respectively located in the receiving hole 1054 and the positioning slot 1220, and the positioning slot is located at the center of the seat, so that the positioning balls can automatically adjust the levelness of the seat. The number of the locking screws is multiple, and each locking screw is respectively arranged in each through hole and each first threaded hole in a penetrating mode, so that the seat is fixed on the base body. When the levelness of the seat stand needs to be adjusted, the locking screws are respectively loosened, the seat stand is automatically aligned and calibrated through the positioning balls, and then the locking screws are locked, so that the seat stand is fixed on the base body.

Because the projection area of the cantilever part on the base body is larger than the projection area of the connecting part on the base body, namely the part of the cantilever part is a suspended overhanging structure, the cantilever part is in a cantilever structure, the mass center of the base is arranged at the periphery of the base, and the projection of the machine body on the base body and the projection of the connecting part on the base body are spaced, namely the projection of the machine body on the base body and the projection of the connecting part on the base body are not crossed and separated, the machine body is connected on the overhanging structure of the cantilever part in a sliding way, the projection of the machine body on the base body is a first projection area, the projection of the connecting part on the base body is a second projection area, namely the projection of the mass center of the base on the base body is positioned between the first projection area and the second projection area, namely the mass center of the plastic welding machine is positioned at the front position of the base, and the problem of backward pitching can not occur when the plastic welding machine is stressed during welding, namely, the stability of the plastic welding machine is better. When the levelness of the seat stand needs to be adjusted, firstly, a plurality of locking screws are loosened, then the levelness of the seat stand is automatically calibrated through the positioning balls, and finally, the locking screws are respectively screwed down, so that the whole adjusting process is convenient and quick, the seat stand can be ensured to have higher horizontal precision, and the problem that the horizontal precision adjusting time of a plastic welding machine is longer is solved; the adjustment is completed without long-time observation, so that the adjustment difficulty of the plastic welding machine is low.

In order to make the structure of the cantilever part simpler and easier to process, in one embodiment, the cross section of the cantilever part is trapezoidal, so that the structure of the cantilever part is simpler and easier to process.

In one embodiment, the plastic welding machine further comprises a positioning die, and the positioning die is used for clamping the workpiece to be welded, so that the welding product is positioned and clamped on the positioning die, and the welding precision of the product is ensured. The positioning die is fixed on the seat platform through a stud. In this embodiment, the positioning mold is fixed to a side of the seat base away from the base body through a stud. Furthermore, a first locking hole is formed in the positioning die, a second locking hole is formed in the seat stand, and the studs are respectively arranged in the first locking hole and the second locking hole in a penetrating mode, so that the positioning die is fixed on the seat stand.

Referring again to fig. 7, in one embodiment, the base body 105 is provided with a mounting region 1051. The first screw holes 1052 and the receiving holes 1054 are opened in the mounting region 1051. The projection of the main body 300 on the base body 105 is located in the installation region 1051. The pedestal 1200 is fixed to the mounting area by locking screws, so that the jokers mounted on the machine body correspond to the workpieces to be welded on the pedestal.

In one embodiment, the mounting region 1051 is a boss structure to facilitate securing of the seat to the mounting region. In other embodiments, the mounting region may also be a groove structure.

In one embodiment, the projection area of the pedestal 1200 is overlapped with the mounting area 1051 in the base body 105, so that the pedestal is connected to the mounting area, and the pedestal is not easy to interfere with other objects due to the fact that the edge extends outwards, and the edge is not located in the mounting area and is inconvenient for placing a workpiece to be welded.

In one embodiment, the outer wall of the positioning ball is coated with a wear-resistant layer, so that the positioning ball has high wear resistance. It will be appreciated that in other embodiments the wear layer may be omitted, i.e. the location balls themselves have a higher wear resistance. In one embodiment, the positioning ball is of a copper ball structure, so that the positioning ball has better wear resistance and pressure bearing performance.

As shown in fig. 7 and 9, in one embodiment, the body 300 includes a body 301, a fixing plate 1400, a fixing seat 1500, and a driving assembly 1600. The fixing plate 1400 is coupled to the body 300. The fixing base 1500 is slidably connected to the body 301. Fig. 9 shows the power output end of the driving assembly 1900 and the fixing base 1500 in an unconnected state, in order to better show the position of the connection between the power output end of the driving assembly 1900 and the fixing base 1500, which is indicated by the two-dot chain line in the figure. The driving assembly 1600 is disposed on the fixing plate 1400, and a power output end of the driving assembly 1600 is connected to the fixing base 1500. The driving assembly 1600 drives the fixing base 1500 to slide relative to the body 301. The vibrator 1700 is disposed on the fixing base 1500. The vibrator slides along with the fixed seat relative to the machine body 301, so that the vibrator moves relative to the workpiece to be welded to complete the welding of the workpiece to be welded.

As shown in FIG. 9, in one embodiment, the plastic welder 10 further includes a fine adjustment mechanism 1800. Referring also to fig. 10, the mounting block 1500 includes a mounting block 1510 and an overhang 1520 extending from the mounting block away from the body. The fixed base 1510 is slidably connected to the body 300. The overhanging part is provided with a threaded hole 1522. And the power output end of the driving assembly is connected with the fixed seat body. The driving assembly 1600 drives the fixed base 1510 to slide relative to the body 300. The fine adjustment mechanism 1800 is inserted into the threaded hole 1522 and is in threaded connection with the protruding portion 1520, and the fine adjustment mechanism is further in rotational connection with the fixing plate. The vibrator 1700 is disposed at an end of the fixing base 1500 away from the fixing plate 1400.

The driving assembly is arranged on the fixing plate and drives the fixing seat to slide relative to the machine body, so that the fixing seat slides in a preset stroke relative to the machine body. Because the fine adjustment mechanism is also connected with the fixed plate in a rotating way, when the fine adjustment mechanism is rotated, the fine adjustment mechanism rotates relative to the fixed plate, and the fine adjustment mechanism is arranged in the threaded hole in a penetrating way and is in threaded connection with the extension part, so that the extension part drives the fixed seat body to slide relative to the machine body, the distance between the fixed plate and the fixed seat body is adjusted, the fixed seat is adjusted to slide to a preset position relative to the machine body, the preset stroke between the fixed seat and the machine body is increased or reduced, namely, the preset stroke between the vibrator arranged on the fixed seat and the machine body is increased or reduced, namely, the driving stroke of the driving assembly is increased or reduced. Because the overhang portion deviates from the fuselage by fixed pedestal and extends and form, make the overhang portion hang outward on fixed pedestal, because fine tuning and overhang portion threaded connection again make fine tuning be located the great overhang portion in space, the regulation in the convenient to use to make the regulation convenience of plastic welding machine better.

As shown in fig. 10, in one embodiment, the fine adjustment mechanism 1800 includes a fine adjustment nut 1810 and a screw 1820. A trim nut 1810 is attached to the end of the screw 1820. The screw 1820 penetrates through the threaded hole 1522 and is in threaded connection with the protruding portion 1520, and the screw 1820 is rotatably connected to the fixing plate 1400, that is, one end of the screw is connected to the fine adjustment nut, the other end of the screw is rotatably connected to the fixing plate, and the screw penetrates through the threaded hole and is in threaded connection with the protruding portion. The fine adjustment nut is positioned on one side, away from the fixing plate, of the extension portion, so that the fine adjustment mechanism penetrates through the threaded hole and is in threaded connection with the extension portion. When the driving stroke of the driving assembly needs to be adjusted, the fine adjustment nut is rotated, the fine adjustment nut drives the screw rod to rotate relative to the extension portion, the extension portion drives the fixing seat body to slide relative to the machine body, and the adjustment of the driving stroke of the driving assembly is achieved.

As shown in fig. 10, in one embodiment, the overhang 1520 includes an overhang body 1521 and a copper sleeve 1523. The main body 1521 is formed by extending the fixed housing 1510 away from the main body 300. The main body 1521 of the extension portion is provided with a through hole 1525, and the copper sleeve 1523 penetrates through the through hole 1525 and is connected with the main body of the extension portion. The threaded hole 1522 is opened in the copper sheathing 1523, the screw 1820 wear to locate in the threaded hole 1522 and with copper sheathing 1523 threaded connection. When drive assembly's drive stroke need be adjusted, rotate the fine setting nut, the fine setting nut drives the screw rod and rotates for the copper sheathing, and the copper sheathing drives the motion of extension portion main part, because extension portion main part deviates from the fuselage by fixed pedestal and extends and form, makes the fixing base body slide for the fuselage, realizes drive assembly's drive stroke's regulation. Because the smooth surface contact is adopted between the copper sleeve and the screw rod, the rotating clearance between the copper sleeve and the screw rod is small, the problem of swing cannot occur, in addition, the copper sleeve has higher wear resistance, so that the transmission precision between the copper sleeve and the screw rod is higher, the service life of the extending part is longer, and the cost is not too high.

In one embodiment, the threaded hole is formed along the axial direction of the copper sleeve, so that the copper sleeve and the screw rod are coaxially arranged, and the threaded connection between the fine adjustment mechanism and the extension part is stable.

As shown in fig. 11, in one embodiment, the fine adjustment mechanism 1800 further includes a fixing member 1830, and the fixing member 1830 is disposed on the screw rod 1820 and connected to the screw rod 1820. The screw 1820 penetrates through the fixing plate 1400. Referring to fig. 9, the fixing element 1830 is located on the side of the fixing plate 1400 away from the fixing base 1510, so as to avoid the problem that the screw rod excessively rotates and slips off the fixing plate, and ensure that the screw rod is always screwed onto the fixing plate.

As shown in fig. 11, in one embodiment, the fine adjustment mechanism 1800 further comprises a limit copper block 1840. The limiting copper block is arranged on one side, close to the fixing piece, of the fixing plate. The screw 1820 is also inserted into the limiting copper block and is in threaded connection with the limiting copper block 1840. Because spacing copper billet has higher wearability, and one side of the neighbouring mounting of fixed plate is located to spacing copper billet, makes spacing copper billet separate fixed plate and mounting, avoids the screw rod to drive the mounting and rotates the direct and fixed plate friction of in-process, has avoided the lower problem of life of fixed plate.

As shown in fig. 12, in one embodiment, the drive assembly 1600 includes a cylinder 1610 and a linkage 1620. The cylinder is arranged on the fixed plate 1400, and the power output end of the cylinder is connected with the connecting rod. The connecting rod penetrates through the fixing plate and moves relative to the fixing plate, and the connecting rod is further connected with the fixing seat body 1510. The cylinder drives the connecting rod to move relative to the fixing plate, and the connecting rod drives the fixing seat body to move, so that the fixing seat body slides relative to the machine body.

As shown in FIG. 11, in one embodiment, the plastic welder 10 further includes an encoder assembly 1900, a clamp block 2100, and a pull rod 2200. The encoder assembly 1900 is disposed on the fixing plate 1400. The encoder assembly 1900 is configured to measure a drive stroke of the drive assembly 1600. The clamp 2100 is connected to the power output end of the encoder assembly, and the clamp is connected to the drawbar. The clamping block is positioned on one side of the fixing plate, which is far away from the fixing seat body. The pull rod penetrates through the fixed plate and is in sliding connection with the fixed plate. Referring again to fig. 10, the tie rod is also connected to the stationary housing 1510. When adjusting drive assembly's drive stroke through rotatory fine-tuning, the interval between fixed pedestal and the fixed plate is increased or is dwindled, because the pull rod wears to locate the fixed plate and with fixed plate sliding connection, the pull rod still is connected with fixed pedestal, makes the pull rod slide for the fixed plate, because the clamp splice is connected with the power take off end of pull rod and encoder subassembly respectively again, makes encoder subassembly simultaneous measurement obtain drive assembly's drive stroke's numerical value increase or reduce to change encoder control stroke in real time.

As shown in fig. 11, in one embodiment, the encoder assembly 1900 includes an encoder 1910, a first synchronization wheel 1920, a second synchronization wheel 1930, and a synchronization belt 1940. The encoder 1910 is disposed on the fixed plate 1400, and the first synchronizing wheel 1920 is disposed on the power shaft of the encoder 1910. The second synchronizing wheel 1930 is rotatably connected to the fixing plate 1400. The synchronous belt 1940 is respectively sleeved on the first synchronous wheel 1920 and the second synchronous wheel 1930, so that the encoder drives the second synchronous wheel to rotate relative to the fixing plate through belt transmission. The clamping block is fixed on the synchronous belt, moves relative to the fixed plate along with the synchronous belt, and simultaneously drives the pull rod to slide relative to the fixed plate, so that the adjustment of the driving stroke of the fine adjustment mechanism is realized.

Referring again to FIG. 9, in one embodiment, the plastic welder 10 further includes a vibrator mounting flange 2300 and horizontal screws 2400. The vibrator fixing flange 2300 abuts against the fixing base 1510. The vibrator fixing flange 2300 is sleeved on the vibrator 1700. The fixed seat body is provided with a first threaded hole, the vibrator fixing flange is provided with a second threaded hole, and the horizontal screws respectively penetrate through the first threaded hole and the second threaded hole, so that the vibrator fixing flange is fixedly connected to the fixed seat body, and the vibrator is reliably fixed on the fixed seat body and is convenient for horizontal adjustment of the vibrator.

In one embodiment, the fixed seat body is provided with a cavity, and the vibrator part is located in the cavity. The vibrator flange is sleeved on the vibrator and connected with the fixed seat body, so that the vibrator is fixed on the fixed seat body.

Further, the plastic welder 10 further includes a connection flange 2500. The connecting flange abuts against one side of the vibrator fixing flange 2300 away from the fixing base 1510, and the connecting flange 2500 is sleeved on the vibrator 1700. The connecting flange is provided with a fixing hole, the horizontal screw is further arranged in the fixing hole in a penetrating mode, so that the connecting flange and the vibrator fixing flange are fixed on the fixing seat body through the horizontal screw, and the connection between the vibrator and the fixing seat body is firmer.

Referring again to FIG. 12, to provide a secure sliding connection between the mounting block and the body, in one embodiment, the plastic welder 10 further includes cross roller guides 2600. The cross roller guide 2600 is connected to the fixed base 1510 and the body 300, respectively, so that the fixed base and the body are reliably slidably connected, and the problems of a gap and low precision due to the adoption of a linear guide rod between the fixed base and the body of a conventional plastic welding machine are solved. In addition, the service life of the crossed roller guide rail is long, and the crossed roller guide rail is not easy to damage.

In order to better accommodate the cross roller guide rail on the body, in one embodiment, the body 300 is provided with a sliding groove 306, and the cross roller guide rail 2600 is located in the sliding groove 306 and connected to the body, so that the cross roller guide rail is better accommodated on the body, and the precision of sliding between the body and the fixed base is improved.

In order to make the sliding between the fixed base and the body more stable, in one embodiment, the number of the crossed roller guide rails is two, two of the crossed roller guide rails are arranged in parallel, and each of the crossed roller guide rails is respectively connected with the fixed base and the body, so that the sliding between the fixed base and the body is more stable.

In order to further improve the precision of the sliding between the main body and the fixed seat, in one embodiment, two mounting grooves 1515 are formed on the fixed seat 1510, and each of the cross roller guide rails 2600 is further located in each of the mounting grooves 1515 and connected to the fixed seat, so that the cross roller guide rails are respectively received in the main body and the fixed seat, thereby further improving the precision of the sliding between the main body and the fixed seat.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A plastic welding machine, comprising:

the base comprises a base body, a connecting part and a cantilever part, wherein the connecting part extends towards the direction far away from the base body on the top surface of the base body, the cantilever part extends towards the direction far away from the base body on the connecting part, the base body is provided with an installation area, and the projection area of the cantilever part on the base body is larger than that of the connecting part on the base body; the cantilever part is provided with an accommodating cavity and a through hole which are communicated;

the projection of the machine body on the base body is a first projection area, the projection of the connecting part on the base body is a second projection area, the projection of the center of mass of the base on the base body is positioned between the first projection area and the second projection area, and the projection of the machine body on the base body is positioned in the installation area;

the gear is sleeved on the adjusting handle and meshed with the rack;

one end of the air supporting component is connected with the rack and used for assisting in supporting the rack, the other end of the air supporting component is connected with the cantilever part, and the meshing transmission direction of the gear and the rack is parallel to the stretching direction of the air supporting component; and

the vibrator is arranged on the machine body.

2. The plastic welding machine according to claim 1, wherein the connecting plate comprises a plate body and a first supporting table, an avoiding groove corresponding to the through hole is formed in the plate body, the air supporting assembly is located in the avoiding groove, and the adjusting handle penetrates through the first supporting table and is rotatably connected with the first supporting table.

3. The plastic welding machine of claim 2, wherein the connecting plate further comprises a second support platform, the first support platform and the second support platform are arranged in parallel on the plate body, the gear is located between the first support platform and the second support platform, and the adjusting handle is further connected with the second support platform in a rotating manner.

4. The plastic welding machine according to claim 1, wherein the connecting portion further defines a cavity communicating with the receiving cavity.

5. The plastic welding machine according to claim 1, wherein the gas strut assembly comprises a cylinder and a gas strut, the cylinder is coaxially arranged and slidably connected with the support rod, the end of the cylinder far away from the support rod is connected with the rack, and the end of the gas strut outside the cylinder is connected with the base.

6. The plastic welding machine of claim 5, wherein the gas strut assembly further comprises a first mounting seat and a second mounting seat, the first mounting seat being connected to the rack and the end of the barrel, respectively, and the second mounting seat being connected to the base and the end of the gas strut, respectively.

7. The plastic welding machine according to any one of claims 1 to 6, wherein the cantilever portion further comprises a main body and a sliding plate which are connected, the accommodating cavity is formed in the main body, the adjusting handle is formed in the main body in a penetrating manner, the penetrating holes comprise a first sub-hole formed in the sliding plate and a second sub-hole formed in the main body, and the racks are respectively located in the first sub-hole and the second sub-hole; the machine body is connected to the sliding plate in a sliding mode.

8. The plastic welding machine according to claim 7, wherein the sliding plate is provided with a sliding groove communicated with the first branch hole, the machine body is provided with a boss, and the boss is positioned in the sliding groove and is in sliding connection with the sliding plate.

9. The plastic welding machine of claim 8, further comprising a locking handle, a connecting shaft, and a hold down;

the locking handle is connected with one end of the connecting shaft;

the pressing block is provided with a threaded hole, and the connecting shaft part is positioned in the threaded hole and is in threaded connection with the pressing block; the sliding plate is provided with a groove communicated with the sliding groove, and the pressing block is positioned in the groove and is in sliding connection with the sliding plate; the pressing block is used for abutting against the boss.

10. The plastic welding machine according to claim 9, wherein a wedge-shaped surface is arranged at an end of the pressing block away from the connecting shaft, an inclined surface matched with the wedge-shaped surface is arranged on the boss, and the wedge-shaped surface is used for abutting against the inclined surface.