CN210453438U

CN210453438U - High-precision vacuum hot-pressing forming machine

Info

Publication number: CN210453438U
Application number: CN201920771042.3U
Authority: CN
Inventors: 杨茂荣; 吴余华; 宋磊
Original assignee: Tayu Machinery Co ltd
Current assignee: Tayu Machinery Co ltd
Priority date: 2019-05-27
Filing date: 2019-05-27
Publication date: 2020-05-05
Anticipated expiration: 2029-05-27

Abstract

The utility model discloses a high-precision vacuum hot-pressing forming machine, which comprises a frame, a die cylinder assembly arranged on the frame, a lower cylinder template and four machine columns, wherein the lower template is arranged on the plane of the frame, a corresponding upper template is arranged above the lower template, the lower cylinder template is arranged above the upper template, and the four machine columns sequentially and vertically pass through the lower cylinder template, the upper template and the lower template; the die cylinder assembly is arranged at the central position of the lower die plate of the cylinder and comprises a die cylinder mandrel, and a weighing sensor is arranged at the bottom end of the die cylinder mandrel and is connected with the central position of the upper die plate through the weighing sensor; a hanging template is arranged between the upper template and the lower template, and a hot-pressed ceramic plate is arranged in the hanging template; two groups of fixing columns which are bilaterally symmetrical are arranged between the hanging template and the upper template, and reverse vacuum covers are arranged on the outer sides of the two groups of fixing columns. The die cylinder assembly further comprises a die cylinder upper cover, a die cylinder sleeve and a die cylinder lower cover, and the die cylinder assembly is connected with the cylinder lower template through the die cylinder lower cover.

Description

High-precision vacuum hot-pressing forming machine

Technical Field

The utility model relates to a field of moulding plastics specifically is a high-accuracy vacuum hot briquetting machine.

Background

A hot-press forming machine (also called a flat vulcanizing machine, a rubber vulcanizing machine, a small-sized tablet press and an automatic tablet press) is one of forming machines, is suitable for mixing processing and batching tests of chemical raw materials of polymers such as PVC, color master batches and the like in the rubber and plastic industries so as to detect whether the required color and quality are achieved, and can be used as a basis for batching before batch production in factories. Plastic or rubber raw materials are placed in a die and clamped between an upper electric heating plate and a lower electric heating plate, and pressure is applied to the electric heating plates under the intelligent constant temperature, so that the raw materials are molded. The common hot press is difficult to achieve high precision, and the high precision comprises parallelism control, force control and position control of an upper template and a lower template, so that the heat transfer efficiency is not high finally. Therefore, a hot press forming machine which can adjust balance, control force and position with high efficiency is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-accuracy vacuum hot briquetting machine to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a high-precision vacuum hot-pressing forming machine comprises a rack, a die cylinder assembly arranged on the rack, a lower cylinder template and four machine columns, wherein the lower template is arranged on the plane of the rack, a corresponding upper template is arranged above the lower template, the lower cylinder template is arranged above the upper template, and the four machine columns sequentially and vertically penetrate through the lower cylinder template, the upper template and the lower template; the die cylinder assembly is arranged at the central position of the lower die plate of the cylinder and comprises a die cylinder mandrel, and a weighing sensor is arranged at the bottom end of the die cylinder mandrel and is connected with the central position of the upper die plate through the weighing sensor; a hanging template is arranged between the upper template and the lower template, and a hot-pressed ceramic plate is arranged in the hanging template; two groups of fixing columns which are bilaterally symmetrical are arranged between the hanging template and the upper template, and reverse vacuum covers are arranged on the outer sides of the two groups of fixing columns.

As an optimal technical scheme of the utility model, the die cylinder subassembly still includes die cylinder upper cover, die cylinder cover and die cylinder lower cover, and the die cylinder subassembly passes through the die cylinder lower cover and is connected with the jar lower bolster.

As an optimal technical scheme of the utility model, be equipped with the regulating block that can adjust from top to bottom on the column position of cylinder lower bolster bottom, have the screw thread on the regulating block, combine together with the screw thread of column.

As a preferred technical scheme of the utility model, the four corners position of lower bolster all is provided with the fixed orifices of being connected with the column, and the four corners position of cope match-plate pattern all is provided with the slide opening that supplies the column to run through.

As an optimal technical scheme of the utility model, the side fixed mounting of cope match-plate pattern has the magnetostrictive displacement sensor of positioning action, magnetostrictive displacement sensor and PLC headtotail.

As an optimal technical scheme of the utility model, weighing sensor and the PLC headtotail of steerable mould jar subassembly hydro-cylinder pressure.

As an optimal technical scheme of the utility model, hang the step groove fixed connection that template and cope match-plate pattern pass through the fixed column.

Compared with the prior art, the utility model discloses there is following advantage: 1. an adjusting block is arranged on a machine column at the bottom of the lower cylinder template, and the upper template and the lower template are balanced by combining threads on the adjusting block and threads of the machine column and vertically adjusting the lower cylinder template through the adjusting block; 2. the weighing sensor can sense the pressure of the die cylinder assembly, transmit the pressure to the PLC and control the oil cylinder pressure of the die cylinder assembly through the PLC; 3. the magnetostrictive displacement sensor is arranged, so that the position of the template can be positioned, and the magnetostrictive displacement sensor has the advantages of impact resistance, lateral force resistance, high precision and good long-term stability.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a flow chart of the operation of the weighing sensor of the present invention;

fig. 3 is a schematic structural diagram of the weighing sensor of the present invention.

Reference numerals: the device comprises a rack 1, a die cylinder assembly 2, a lower cylinder template 3, a machine column 4, a lower template 5, an upper template 6, a die cylinder mandrel 2-3, a weighing sensor 7, a hanging template 8, a fixed column 9, a reverse vacuum cover 10, an upper die cylinder cover 2-1, a die cylinder sleeve 2-2, a lower die cylinder cover 2-4 and an adjusting block 11.

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 work belong to the protection scope of the present invention.

Referring to fig. 1-3, the utility model provides a high-precision vacuum hot-pressing forming machine, which comprises a frame 1, a mold cylinder assembly 2 arranged on the frame 1, a lower mold plate 3 and four machine columns 4, wherein the lower mold plate 5 is arranged on the plane of the frame 1, a corresponding upper mold plate 6 is arranged above the lower mold plate 5, the lower mold plate 3 is arranged above the upper mold plate 6, and the four machine columns 4 sequentially and vertically penetrate through the lower mold plate 3, the upper mold plate 6 and the lower mold plate 5; the die cylinder assembly 2 is arranged at the center of the lower die plate 3 of the cylinder, the die cylinder assembly 2 comprises a die cylinder mandrel 2-3, a weighing sensor 7 is arranged at the bottom end of the die cylinder mandrel 2-3 and is connected with the center of the upper die plate 6 through the weighing sensor 7; a hanging template 8 is arranged between the upper template 6 and the lower template 5, and a hot-pressed ceramic plate is arranged in the hanging template 8; two groups of fixing columns 9 which are bilaterally symmetrical are arranged between the hanging template 8 and the upper template 6, and reverse vacuum covers 10 are arranged on the outer sides of the two groups of fixing columns 9. The die cylinder component 2 further comprises a die cylinder upper cover 2-1, a die cylinder sleeve 2-2 and a die cylinder lower cover 2-4, and the die cylinder component 2 is connected with the die cylinder lower template 3 through the die cylinder lower cover 2-4. An adjusting block 11 which can be adjusted up and down is arranged at the position of the machine column 4 at the bottom of the cylinder lower template 3, and the adjusting block 11 is provided with threads which are combined with the threads of the machine column 4. The four corners of lower bolster 5 all is provided with the fixed orifices of being connected with column 4, and the four corners of cope match-plate pattern 6 all is provided with the sliding hole that supplies column 4 to run through. And a magnetostrictive displacement sensor with a positioning function is fixedly arranged on the side surface of the upper template 6, and the magnetostrictive displacement sensor is connected with the PLC system. And the weighing sensor 7 is connected with a PLC system capable of controlling the pressure of the oil cylinder of the die cylinder assembly 2. The hanging template 8 and the upper template 6 are fixedly connected through a step groove of a fixing column 9.

The working principle is as follows: the upper template 6 is driven to move up and down by the up-and-down movement of the die cylinder core shaft 2-3 in the die cylinder component 2, and the lower die plate 3 is arranged on the adjusting block 11 of the machine column 4, so that the position of the lower die plate 3 can be adjusted up and down, and the parallelism of the lower die plate 3 and the lower template 5 is adjusted;

the reverse vacuum cover 10 is closed, wherein the vacuum is pumped, oil is fed into the upper cavity of the upper cover 2-1 of the die cylinder, pressure is built to push the piston rod to move downwards, and the piston rod is rigidly connected with the fixed column 9, the lifting die plate 8, the reverse vacuum cover 10 and the hot-pressing ceramic plate, so that the hot-pressing ceramic plate is pushed to press materials downwards; the upper template is controlled to move up and down through the magnetostrictive displacement sensor, specifically, the magnetostrictive displacement sensor senses the position, the position is transmitted to the PLC system, and the upper template is adjusted to move up and down through the PLC system.

As shown in fig. 2, the pressure of the mold cylinder assembly is sensed by the weighing sensor, the sensed information is transmitted to the PLC system, and the PLC controls the cylinder pressure of the mold cylinder assembly, so that stable raw material compression is ensured, and the thickness control precision is high; and 2-4, feeding oil into the lower cover of the mold cylinder, building pressure to push the piston rod to move upwards to drive the hot-pressed ceramic plate to move upwards, and opening the vacuum cover after vacuum closing.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A high-precision vacuum hot-pressing forming machine comprises a rack (1), a die cylinder assembly (2) arranged on the rack (1), a lower cylinder template (3) and four machine columns (4), and is characterized in that the lower template (5) is arranged on the plane of the rack (1), a corresponding upper template (6) is arranged above the lower template (5), the lower cylinder template (3) is arranged above the upper template (6), and the four machine columns (4) sequentially and vertically penetrate through the lower cylinder template (3), the upper template (6) and the lower template (5); the die cylinder assembly (2) is arranged at the center of the lower die plate (3), the die cylinder assembly (2) comprises a die cylinder core shaft (2-3), a weighing sensor (7) is arranged at the bottom end of the die cylinder core shaft (2-3), and the die cylinder assembly is connected with the center of the upper die plate (6) through the weighing sensor (7); a hanging template (8) is arranged between the upper template (6) and the lower template (5), and a hot-pressed ceramic plate is arranged in the hanging template (8); two groups of fixing columns (9) which are bilaterally symmetrical are arranged between the hanging template (8) and the upper template (6), and reverse vacuum covers (10) are arranged on the outer sides of the two groups of fixing columns (9).

2. A high-precision vacuum hot-press forming machine as claimed in claim 1, wherein: the die cylinder component (2) further comprises a die cylinder upper cover (2-1), a die cylinder sleeve (2-2) and a die cylinder lower cover (2-4), and the die cylinder component (2) is connected with the cylinder lower template (3) through the die cylinder lower cover (2-4).

3. A high-precision vacuum hot-press forming machine as claimed in claim 1, wherein: an adjusting block (11) capable of being adjusted up and down is arranged at the position of the machine column (4) at the bottom of the cylinder lower template (3), and the adjusting block (11) is provided with threads which are combined with the threads of the machine column (4).

4. A high-precision vacuum hot-press forming machine as claimed in claim 1, wherein: the four corners of the lower template (5) are provided with fixing holes connected with the machine column (4), and the four corners of the upper template (6) are provided with sliding holes for the machine column (4) to run through.

5. A high-precision vacuum hot-press forming machine as claimed in claim 1, wherein: and a magnetostrictive displacement sensor with a positioning effect is fixedly arranged on the side surface of the upper template (6), and the magnetostrictive displacement sensor is connected with the PLC system.

6. A high-precision vacuum hot-press forming machine as claimed in claim 1, wherein: and the weighing sensor (7) is connected with a PLC system capable of controlling the pressure of the oil cylinder of the die cylinder assembly (2).

7. A high-precision vacuum hot-press forming machine as claimed in claim 1, wherein: the hanging template (8) is fixedly connected with the upper template (6) through a step groove of the fixing column (9).