Electric needle blowing mechanism of blow molding machine
By using an electric needle blowing mechanism controlled by a servo motor in the blow molding machine, the problem of uncontrollable needle blowing speed of the existing blow molding machine is solved, and a more efficient production process and better quality products are achieved.
Patent Information
- Application Number
- CN202421426843.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-06-21
AI Technical Summary
The blowing needle of the existing blow molding machine is driven by oil cylinders, and the speed of the blowing needle cannot be controlled, resulting in low production efficiency.
An electric needle blowing mechanism is designed, using a servo motor to control the speed of the needle blowing, and through the combination of the planetary roller screw and the plum blossom coupling, the needle blowing is quickly inserted and slow exited.
Through the control of the servo motor, production efficiency and product quality can be effectively improved, and the blow molding process can be efficiently completed.
Smart Images
Figure CN222742109U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of blow molding machines, in particular to an electric blow needle mechanism of a blow molding machine. Background Art
[0002] In the production process of the blow molding machine, the extruder continuously extrudes the parison, which is placed in a split mold while hot (or heated to a softened state). After the mold is closed, compressed air is immediately introduced into the parison to inflate the plastic parison and cling to the inner wall of the mold. After cooling and demolding, various hollow products are obtained. In the hollow bottle blowing machine, the blow needle is used to insert into the mold to inflate the blank. The blank expands as the air pressure increases, forcing it to cling to the mold, thereby forming the plastic product and playing a certain cooling role. It is an indispensable component in the blow molding process of the hollow blow molding machine. The blow needle of the existing blow molding machine is driven by an oil cylinder, and the speed of the blow needle cannot be controlled, resulting in low production efficiency. Therefore, those skilled in the art provide an electric blow needle mechanism for a blow molding machine to solve the problems raised in the above background technology. Utility Model Content
[0003] The purpose of the utility model is to provide an electric needle blowing mechanism for a blow molding machine to solve the problems raised in the above background technology.
[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: it comprises a blow needle bracket, a servo motor, a motor mounting plate, a plum blossom coupling, a first support rod, a bearing seat mounting plate, a supporting bearing seat, a planetary roller screw, a second support rod, a support sleeve, a blow needle seat plate and a guide rod; the blow needle bracket is connected to the bearing seat mounting plate through the second support rod, the bearing seat mounting plate is fixed with the supporting bearing seat by screws, a motor mounting plate is arranged above the bearing seat mounting plate, the motor mounting plate and the bearing seat mounting plate are connected by several first support rods, the servo motor is installed on the motor mounting plate, the upper end of the planetary roller screw is connected to the output shaft of the servo motor through the plum blossom coupling, the planetary roller screw is installed in the supporting bearing seat through the bearing, the nut of the planetary roller screw is fixed with a support sleeve on the outside, the support sleeve passes through the blow needle bracket, and the bottom is fixed to the blow needle seat plate by screws, the bottom of the blow needle bracket is fixed with a guide rod, the blow needle seat plate is slidably connected to the guide rod, and the blow needle is installed on the blow needle seat plate.
[0005] Furthermore, the bottom of the guide rod is fixed on the mold mounting plate, and a hole is formed on the mold mounting plate.
[0006] Furthermore, a base plate is fixed at the lower part of the guide rod, a connecting plate is fixed between the base plate and the blow needle bracket, a limit switch mounting seat is installed on the connecting plate by bolts, a limit switch is installed on the limit switch mounting seat, and the limit switch is connected to the servo motor signal.
[0007] After adopting the above structure, the beneficial effects produced by the utility model are as follows: the electric blowing needle mechanism of the blow molding machine described in the utility model effectively controls the speed of the blowing needle through the servo motor, thereby improving production efficiency and product quality. The servo motor controls the blowing needle to quickly insert into the mold to inflate the embryo and complete blow molding. After blow molding is completed, the servo motor controls the blowing needle to first slowly leave the mold and then quickly move up to prepare for the next blow molding. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a planar structural diagram of the utility model;
[0009] Figure 2 It is a three-dimensional structural diagram of the utility model.
[0010] Description of reference numerals:
[0011] Blow needle bracket 1, servo motor 2, motor mounting plate 3, plum blossom coupling 4, first support rod 5, bearing seat mounting plate 6, support bearing seat 7, planetary roller screw 8, second support rod 9, support sleeve 10, blow needle seat plate 11, guide rod 12, mold mounting plate 13, hole 14, bottom plate 15, connecting plate 16, bolt 17, limit switch mounting seat 18, limit switch 19. DETAILED DESCRIPTION
[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0013] See Figure 1 —— Figure 2As shown, this specific implementation adopts the following technical scheme: it includes a blow needle bracket 1, a servo motor 2, a motor mounting plate 3, a plum blossom coupling 4, a first support rod 5, a bearing seat mounting plate 6, a support bearing seat 7, a planetary roller screw 8, a second support rod 9, a support sleeve 10, a blow needle seat plate 11 and a guide rod 12; the blow needle bracket 1 is connected to the bearing seat mounting plate 6 through the second support rod 9, the bearing seat mounting plate 6 is fixed with a support bearing seat 7 by screws, a motor mounting plate 3 is arranged above the bearing seat mounting plate 6, the motor mounting plate 3 and the bearing seat mounting plate 6 are connected by several first support rods 5, the motor mounting plate 3 is installed with a servo motor 2, a planetary roller screw The upper end of 8 is connected with the output shaft of the servo motor 2 through the plum blossom coupling 4, and the planetary roller screw 8 is installed in the support bearing seat 7 through the bearing. The nut of the planetary roller screw 8 is fixed with a support sleeve 10 on the outside, and the support sleeve 10 passes through the blow needle bracket 1, and the bottom is fixed to the blow needle seat plate 11 by screws. A guide rod 12 is fixed to the bottom of the blow needle bracket 1, and a blow needle seat plate 11 is slidably connected to the guide rod 12. The blow needle is installed on the blow needle seat plate 11. During blow molding, the servo motor 2 drives the planetary roller screw 8 to rotate, and the nut on the planetary roller screw 8 drives the support sleeve 10 and the blow needle seat plate 11 to move downward quickly along the guide rod 12 to insert into the mold, and the feed embryo is inflated, thereby completing the blow molding.
[0014] The bottom of the guide rod 12 is fixed on a mold mounting plate 13 , and a hole 14 is provided on the mold mounting plate 13 for mounting the mold.
[0015] A base plate 15 is fixed to the lower part of the guide rod 12, and a connecting plate 16 is fixed between the base plate 15 and the blow needle bracket 1. A limit switch mounting seat 18 is installed on the connecting plate 16 by means of bolts 17. A limit switch 19 is installed on the limit switch mounting seat 18. The limit switch 19 is connected to the signal of the servo motor 2. The limit switch 19 is used to limit the position of the blow needle seat plate 11. When the blow needle seat plate 11 moves to the limit switch 19, the limit switch 19 sends a signal to the servo motor 2 to stop rotating, and the blow needle is inserted into the mold at the same time. According to different product molds, the bolts 17 are loosened and the limit switch mounting seat 18 is moved up and down to adjust the position of the limit switch 19.
[0016] The working principle of the utility model is as follows: the rotation speed of the servo motor 2 is controlled so that the servo motor 2 quickly drives the planetary roller screw 8 to rotate, driving the blow needle on the blow needle seat plate 11 to quickly move down and insert into the mold to complete the blow molding; after the blow molding is completed, the reversal speed of the servo motor 2 is controlled so that the servo motor 2 slowly drives the planetary roller screw 8 to reverse, and the blow needle slowly leaves the mold to make the surface of the product as smooth as possible, and then the servo motor 2 is controlled to quickly drive the planetary roller screw 8 to reverse and return to its original position to prepare for the next blow molding.
[0017] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. An electric needle blowing mechanism for a blow molding machine, characterized in that: The motor is equipped with a first support rod, a second support rod, a second support rod, a support sleeve, a blow needle seat plate and a guide rod; the blow needle bracket is connected with the bearing seat mounting plate through the second support rod, the bearing seat mounting plate is fixed with the support bearing seat through screws, a motor mounting plate is arranged above the bearing seat mounting plate, the motor mounting plate and the bearing seat mounting plate are connected through several first support rods, a servo motor is mounted on the motor mounting plate, the upper end of the planetary roller screw is connected with the output shaft of the servo motor through the plum blossom coupling, the planetary roller screw is installed in the support bearing seat through the bearing, the support sleeve is fixed on the outer sleeve of the nut of the planetary roller screw, the support sleeve passes through the blow needle bracket, and the bottom is fixed to the blow needle seat plate through screws, the bottom of the blow needle bracket is fixed with a guide rod, the blow needle seat plate is slidably connected to the guide rod, and the blow needle is mounted on the blow needle seat plate.
2. The electric needle blowing mechanism of a blow molding machine according to claim 1, characterized in that: The bottom of the guide rod is fixed on the mold mounting plate, and a hole is opened on the mold mounting plate.
3. The electric needle blowing mechanism of a blow molding machine according to claim 1, characterized in that: A bottom plate is fixed at the lower part of the guide rod, a limit switch mounting seat is installed between the bottom plate and the blow needle bracket through bolts, a limit switch is installed on the limit switch mounting seat, and the limit switch is connected with the servo motor signal.