CN209971498U

CN209971498U - Blow molding machine and screw driving structure thereof

Info

Publication number: CN209971498U
Application number: CN201920185758.5U
Authority: CN
Inventors: 李伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-02-01
Filing date: 2019-02-01
Publication date: 2020-01-21
Anticipated expiration: 2029-02-01

Abstract

The utility model provides a blowing machine and screw drive structure thereof, screw drive structure include hydraulic motor, first reduction gear, second reduction gear and screw rod assembly, screw rod assembly includes the screw rod, first reduction gear includes first input shaft and the first output shaft that the transmission is connected, the second reduction gear includes second input shaft and the second output shaft that the transmission is connected, hydraulic motor's output shaft with first input shaft is connected, first output shaft with the second input shaft is connected, the second output shaft with the screw rod is connected, hydraulic motor first reduction gear with screw rod assembly is located the homonymy of second reduction gear. Adopt the utility model discloses a screw drive structure, simple compactness, easily installation has reduced the power of motor, has reduced the electric energy loss, adopts the blowing machine simple structure compactness of this screw drive structure, and the installation and debugging of being convenient for, the unit interval energy consumption is few.

Description

Blow molding machine and screw driving structure thereof

Technical Field

The utility model relates to a blowing machine technical field, concretely relates to screw drive structure.

Background

Blow molding, also known as air blow molding, is a rapidly developing plastic processing method. The thermoplastic resin is extruded or injection molded to obtain tubular plastic parison, which is placed in a split mold while it is hot (or heated to a softened state), compressed air is introduced into the parison immediately after the mold is closed to blow the plastic parison to attach to the inner wall of the mold, and various hollow products are obtained after cooling and demolding.

In order to meet the transportation requirement of thermoplastic resin, the end of the extrusion screw rod needs to meet the requirements of low rotating speed and high torque, the traditional bottle blowing machine and blow molding machine in the prior art both adopt a common motor as shown in figure 1 to be connected with a belt wheel, and the operation of a screw rod driving structure is realized by a transmission mode that a large belt wheel drives a speed reducer through V belt transmission. And in order to meet the requirement of output end torque, a high-power input motor is required to be used, so that the whole blow molding machine consumes serious energy.

Disclosure of Invention

An object of the utility model is to provide a screw drive structure, this screw drive simple structure is compact, has reduced screw drive structure's area to easily installation has also reduced the power of input motor, has reduced electric energy loss.

Based on this, the utility model provides a screw rod drive structure, including hydraulic motor, first reduction gear, second reduction gear and screw rod subassembly, screw rod subassembly includes the screw rod, first reduction gear includes first input shaft and the first output shaft that the transmission is connected, the second reduction gear includes second input shaft and the second output shaft that the transmission is connected, hydraulic motor's output shaft with first input shaft is connected, first output shaft with the second input shaft is connected, the second output shaft with the screw rod is connected, hydraulic motor first reduction gear with screw rod subassembly all is located the homonymy of second reduction gear.

Further, the first speed reducer is a planetary gear speed reducer.

Preferably, the speed reducer further comprises a mounting disc, and the first speed reducer is connected with the second speed reducer through the mounting disc.

Further, the first reducer comprises a first case, the first input shaft and the first output shaft are installed in the first case, the second reducer comprises a second case, the second input shaft and the second output shaft are installed in the second case, the first end of the mounting disc is connected with the first case, and the second end of the mounting disc is connected with the second case.

Further, the screw rod component further comprises a sleeve, one end of the sleeve is fixedly connected to the second case, the sleeve is sleeved on the outer side of the screw rod, a feeding channel is formed by the inner wall of the sleeve and a gap between the screw rods, and a feeding hole communicated with the feeding channel is formed in the sleeve.

Preferably, the second case is provided with a mounting seat, and the sleeve is connected with the second case through the mounting seat.

Preferably, the second chassis comprises an upper chassis and a lower chassis, and the upper chassis is connected with the lower chassis through bolts.

Preferably, the outer wall of the upper case and the outer wall of the lower case are both provided with lightening holes.

Preferably, a cushion block is arranged at the bottom of the second case.

In order to achieve the same purpose, the utility model also provides a blow molding machine, including foretell screw rod drive structure.

Implement the embodiment of the utility model provides a, following beneficial effect has:

through using hydraulic motor to drive the transmission of first reduction gear, first reduction gear drives the transmission of second reduction gear, second reduction gear drive screw operates, and hydraulic motor, first reduction gear and screw rod subassembly all are located second reduction gear homonymy, use band pulley and ordinary step motor's transmission structure for prior art, transmission structure in this scheme is simple compact more, the volume of whole blowing machine has been reduced, the installation maintenance degree of difficulty has been reduced, furtherly, this scheme adopts hydraulic motor, the work energy consumption of unit interval has been reduced, make and use step motor drive screw to operate for the blowing machine among the prior art, power consumption in the same time reduces, the energy consumption is little.

Drawings

Fig. 1 is a schematic structural diagram of a screw driving structure in the prior art.

Fig. 2 is a schematic structural diagram of a screw driving structure in an embodiment of the present invention.

Fig. 3 is an exploded view of a screw driving structure in an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a blow molding machine according to an embodiment of the present invention.

In the figure: 1. the hydraulic control device comprises a hydraulic motor, 2, a first speed reducer, 3, a mounting disc, 4, a second speed reducer, 5, a screw assembly, 6 and a cushion block; 21. the device comprises a first case, 22, a first input shaft, 23, a first output shaft, 41, a mounting seat, 42, a second case, 43, lightening holes, 44, a second input shaft, 45, a second output shaft, 51, a screw, 52, a sleeve, 110, a stepping motor, 111, a small belt wheel, 112, a V-shaped belt, 113, a large belt wheel, 114, a reducer, 115 and an output screw; 42a, an upper case, 42b and a lower case.

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 understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.

As shown in fig. 1, in the prior art, a common stepping motor 110 is adopted to drive a small belt wheel 111 to rotate, a V-shaped belt 112 is adopted to drive a large belt wheel 113 to rotate, and a reducer 114 is driven to transmit, so as to drive an output screw 115.

Therefore, the present embodiment provides a screw driving structure, as shown in fig. 2 to 4, including a hydraulic motor 1, a first speed reducer 2, a second speed reducer 4 and a screw assembly 5, and using the hydraulic motor 1 reduces the power of the driving motor under the condition of satisfying the low rotation speed and high torque of the extrusion screw assembly, thereby reducing the energy consumption per unit working time. The screw component 5 comprises a screw 51, the first speed reducer 2 comprises a first input shaft 22 and a first output shaft 23 which are in transmission connection, the second speed reducer 4 comprises a second input shaft 44 and a second output shaft 45 which are in transmission connection, the output shaft of the hydraulic motor 1 is connected with the first input shaft 22, the first output shaft 22 is connected with the second input shaft 44, the second output shaft 45 is connected with the screw 51, in order to ensure the output torque, two-stage speed reduction transmission is adopted, two speed reducers are used for connection, the defect that the occupied space of the second speed reducer is large is avoided under the condition of reducing the rotating speed and improving the torque, the hydraulic motor 1, the first speed reducer 2 and the screw component 5 are all positioned at the same side of the second speed reducer 4, therefore, the occupied area of a screw driving structure is reduced, the space is saved, the driving structure is more compact, and when a belt wheel protruding out of the whole machine is arranged on, the situation of safety accidents such as collision and the like easily occurs during manual operation.

Based on above technical scheme, drive first reduction gear 2 transmission through using hydraulic motor 1, first reduction gear 2 drives the transmission of second reduction gear 4, the operation of second reduction gear 4 drive screw 5, and hydraulic motor 1, first reduction gear 2 and screw assembly 5 all are located 4 homonymies of second reduction gear, for prior art use band pulley and ordinary step motor's transmission structure, the transmission structure in this scheme is simple compacter, the volume of whole blowing machine has been reduced, the installation maintenance degree of difficulty has been reduced, furthermore, this scheme adopts hydraulic motor 1, the work energy consumption of unit interval has been reduced, for the blowing machine among the prior art use step motor 110 drive screw to operate, the power consumption of screw drive structure in this technical scheme in the same time reduces, the energy consumption is little.

Further, the first speed reducer 2 is a planetary gear speed reducer, in this embodiment, the hydraulic motor 1, the first speed reducer 2 and the screw assembly 5 are all located on the same side of the second speed reducer 4, the planetary gear speed reducer can reduce the size of the first speed reducer 2, and the interference between the first speed reducer 2 and the screw assembly 5 is avoided, so that the first speed reducer 2 is high in transmission efficiency, light and small in structure and convenient to install. In the present embodiment, the screw driving structure further includes a mounting plate 3, and the first speed reducer 2 is connected to the second speed reducer 4 through the mounting plate 3.

The first reducer 2 includes a first case 21, the first input shaft 22 and the first output shaft 23 are installed in the first case 21, the second reducer 4 includes a second case 42, the second input shaft 44 and the second output shaft 45 are installed in the second case 42, the first end of the mounting plate 3 is connected to the first case 21, and the second end of the mounting plate 3 is connected to the second case 42. The second case 42 is provided with a threaded hole, the mounting disc 3 is provided with a connecting hole corresponding to the threaded hole, and the mounting disc 3 is mounted on the second case 42 through a screw, so that the first speed reducer 2 is connected with the second speed reducer 4, and the first speed reducer 2 and the second speed reducer 4 are convenient to disassemble and assemble. In this embodiment, screw rod assembly 5 still includes sleeve pipe 52, the one end fixed connection of sleeve pipe 52 is in second quick-witted case 42, screw rod 51's the outside is located to sleeve pipe 52 cover, the clearance between sleeve pipe 52's inner wall and the screw rod 51 forms feedstock channel, the transportation of the plastic material of being convenient for, and be equipped with the feed inlet that link up mutually with feedstock channel on the sleeve pipe 52, the feed inlet is connected with the hopper, thereby hold the plastic material that gets into from the hopper, the plastic material gets into the back, screw rod 5 rotates at sleeve pipe 52 inside, screw rod 51 rotates the plastic material grinding, screw rod 51 rotates, drive the plastic material that is ground and move along feedstock channel, the plastic material of sleeve pipe 52 outside heating plate is established to the sleeve pipe 52, thereby transport the blow molding's part with fused plastic material, accomplish the blow molding. The second case 42 is provided with the mounting base 41, the sleeve 52 is connected with the second case 42 through the mounting base 41, so that the sleeve 52 can be conveniently mounted, one ends of the mounting base 41 and the sleeve 52 are respectively provided with a flange plate, the flange plates are provided with connecting holes corresponding to one another, the mounting base 41 is connected with the sleeve 52 through bolts, the sleeve 52 is reliably connected with the mounting base 41, the sleeve 52 is firmly fixed on the second speed reducer 4, and the second speed reducer 4 is prevented from vibrating in the operation process to enable the positions of the second speed reducer 4 and the sleeve 52 to move relatively.

In addition, the second case 42 includes an upper case 42a and a lower case 43b, corresponding connection holes are respectively formed in the upper case 42a and the lower case 43b, the upper case 42a and the lower case 42b are connected by bolts, and the second case 42 is separately installed, so that the second reducer 4 can be conveniently detached and maintained. The outer walls of the upper case 42a and the lower case 42b are provided with lightening holes 43, so that the weight of the second speed reducer 4 is lightened, and the second speed reducer 4 is convenient to move and transport. The bolts are positioned in the lightening holes 43, so that the upper case 42a and the lower case 42b are fixed together, and meanwhile, the lightening holes 43 provide space for mounting the bolts, so that the volume of the second speed reducer 4 is reduced, and the volume of the whole screw driving structure is further reduced.

The bottom of the second case 42 is provided with a cushion block 6, so that the heights of the second output shaft 23 and the axis of the screw assembly 5 can be conveniently adjusted, the two shafts are positioned at the same height, the transmission stability is ensured, the second speed reducer 4 is not in direct contact with the ground, the vibration is reduced, and the noise is low when the whole mechanism operates.

In order to achieve the same purpose, the present embodiment further provides a blow molding machine, which includes the above screw driving structure, so that the blow molding machine can drive the screw through the screw driving structure, and the screw driving device has a simple overall structure, is convenient to assemble, disassemble, assemble and maintain, occupies a small area, and reduces the operation energy consumption of the blow molding machine in unit time.

Adopt the utility model discloses screw drive structure, drive 2 transmissions of first reduction gear through using hydraulic motor 1, first reduction gear 2 drives 4 transmissions of second reduction gear, 4 drive screw 5 operations of second reduction gear, and hydraulic motor 1, first reduction gear 2 and screw rod subassembly 5 all are located 4 homonymies of second reduction gear, use band pulley and ordinary step motor's transmission structure for prior art, transmission structure in this scheme is simple more compact, the volume of whole blowing machine has been reduced, the installation maintenance degree of difficulty has been reduced, furtherly, this scheme adopts hydraulic motor 1, the work energy consumption of unit time has been reduced, use step motor 110 drive screw to operate for the blowing machine among the prior art, the power consumption of screw drive structure in the same time among this technical scheme reduces, the energy consumption is little.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A screw drive structure, its characterized in that: the hydraulic motor speed reducer is characterized by comprising a hydraulic motor, a first speed reducer, a second speed reducer and a screw rod assembly, wherein the screw rod assembly comprises a screw rod, the first speed reducer comprises a first input shaft and a first output shaft which are in transmission connection, the second speed reducer comprises a second input shaft and a second output shaft which are in transmission connection, the output shaft of the hydraulic motor is connected with the first input shaft, the first output shaft is connected with the second input shaft, the second output shaft is connected with the screw rod, and the hydraulic motor, the first speed reducer and the screw rod assembly are all located on the same side of the second speed reducer.

2. The screw driving structure according to claim 1, wherein: the first reduction gear is a planetary gear reduction gear.

3. The screw driving structure according to claim 1, wherein: the first speed reducer is connected with the second speed reducer through the mounting disc.

4. The screw driving structure according to claim 3, wherein: the first speed reducer comprises a first case, the first input shaft and the first output shaft are installed in the first case, the second speed reducer comprises a second case, the second input shaft and the second output shaft are installed in the second case, the first end of the mounting disc is connected with the first case, and the second end of the mounting disc is connected with the second case.

5. The screw driving structure according to claim 4, wherein: the screw rod assembly further comprises a sleeve, one end of the sleeve is fixedly connected to the second case, the sleeve is sleeved on the outer side of the screw rod, a feeding channel is formed by the inner wall of the sleeve and a gap between the screw rods, and a feeding hole communicated with the feeding channel is formed in the sleeve.

6. The screw driving structure according to claim 5, wherein: and the second case is provided with a mounting seat, and the sleeve is connected with the second case through the mounting seat.

7. The screw driving structure according to claim 4, wherein: the second case comprises an upper case and a lower case, and the upper case is connected with the lower case through bolts.

8. The screw driving structure according to claim 7, wherein: and the outer wall of the upper case and the outer wall of the lower case are both provided with lightening holes.

9. The screw driving structure according to claim 4, wherein: and a cushion block is arranged at the bottom of the second case.

10. A blow molding machine characterized by: comprising the screw driving structure according to any one of claims 1 to 9.