CN211518397U

CN211518397U - Splicing machine barrel for injection molding machine

Info

Publication number: CN211518397U
Application number: CN201921025080.0U
Authority: CN
Inventors: 陈亮; 肖鸽
Original assignee: Changsha Mingtai Plastics Co ltd
Current assignee: Changsha Mingtai Plastics Co ltd
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2020-09-18
Anticipated expiration: 2029-07-03

Abstract

The utility model discloses an injection molding machine is with concatenation barrel, include: the machine barrel is formed by mutually spirally splicing a double-layer conical barrel plate, a left barrel plate and a right barrel plate, the right barrel plate and the left barrel plate are respectively provided with a screw through hole and an injection port, the outer-layer conical barrel plate is provided with a plurality of heater mounting ports, a cold air inlet and a cold air outlet, and the double-layer conical barrel plate is correspondingly provided with a hopper mounting port; the heater consists of electric heating equipment attached to the inner-layer conical barrel plate, a heat insulation layer arranged outside the electric heating equipment, springs arranged on the heat insulation layer and clamping blocks connected with the springs, each clamping block is clamped in the heater mounting port, the springs are in a compressed state, and the height between each clamping block and the heat insulation layer is higher than the thickness of the outer-layer conical barrel plate; the hopper is arranged on the hopper mounting opening and is communicated with the interior of the machine barrel. The utility model provides a pair of concatenation barrel for injection molding machine can let in air conditioning in the barrel and realize rapid cooling, and can not constitute the damage to heating system.

Description

Splicing machine barrel for injection molding machine

Technical Field

The utility model belongs to the technical field of injection molding machine equipment technique and specifically relates to a concatenation barrel for injection molding machine.

Background

The injection molding machine is also called an injection molding machine or an injection machine, a beer machine is called in many factories, and an injection molding product is called a beer piece. It is a main forming equipment for making various shaped plastic products with thermoplastic plastics or thermosetting plastics by using plastic forming mould. The injection molding machine can be divided into a vertical type, a horizontal type and a vertical and horizontal type according to the arrangement mode of the injection device and the mold locking device.

The injection molding machine is controlled by an injection system, a mold closing system, a hydraulic system and electricity. The role of the injection system: the injection system is one of the most important components of an injection molding machine, and generally has 3 main forms of plunger type, screw type and screw pre-molding plunger injection type. The most widely used is the screw type. The function of the injection molding machine is that after a certain amount of plastic is heated and plasticized in a specified time in one cycle of the injection molding machine, the molten plastic is injected into a mold cavity through a screw at a certain pressure and speed. After injection, the melt injected into the mold cavity remains set.

The barrel of the screw injection molding machine can be provided with a heating system for heating the charging barrel and the injection nozzle, and the charging barrel of the existing injection molding machine generally adopts an electric heating ring as a heating device, is arranged outside the charging barrel and is detected by a thermocouple in a segmented way. However, the existing cylinder is only provided with a heating system but not provided with a cooling system, the cylinder can not be rapidly cooled down after being heated for a long time, and the service life of the machine body is greatly lost.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a concatenation barrel for injection molding machine.

The technical scheme of the utility model is that: a splice barrel for an injection molding machine, comprising:

the machine barrel is formed by mutually spirally splicing a double-layer conical barrel plate, a left barrel plate and a right barrel plate, the right barrel plate and the left barrel plate are respectively provided with a screw through hole and an injection port for passing an injection screw and a material, the conical barrel plate on the outer layer is provided with a plurality of heater mounting ports, cold air inlets and cold air outlets, and the double-layer conical barrel plate is correspondingly provided with hopper mounting ports;

the heater consists of electric heating equipment attached to the inner-layer conical barrel plate, a heat insulation layer arranged outside the electric heating equipment, springs arranged on the heat insulation layer and clamping blocks connected with the springs, each clamping block is clamped in the heater mounting port, the springs are in a compressed state, and the height between each clamping block and the heat insulation layer is higher than the thickness of the outer-layer conical barrel plate;

the hopper is arranged on the hopper mounting opening and communicated with the interior of the machine barrel.

Preferably, the conical barrel plate on the outer layer is provided with a threaded hole.

Preferably, a temperature sensor is screwed in the threaded hole and extends into the barrel.

Preferably, the electric heating device is a spiral-type heating tube.

Preferably, the inner wall of the heat insulation layer is provided with a hoop member, and the hoop member is internally sleeved with electric heating equipment for fixation.

Preferably, the fixture block is T-shaped, a vertical plate of the T-shaped fixture block is matched and clamped in the heater mounting opening, and a bottom plate of the T-shaped fixture block blocks the heater mounting opening.

Preferably, the heat insulation layer is H-shaped; the H-shaped heat insulation layer is divided into an upper opening and a lower opening through the middle heat insulation strip, the heater is arranged in the lower opening, the spring is fixedly arranged on the middle heat insulation strip, the clamping block is arranged in the upper opening in a sliding mode, and the clamping block cannot slide out of the upper opening.

Preferably, the lower end of the hopper is additionally provided with a buffering part, and the buffering part is sleeved in the hopper mounting hole in a matching manner and is communicated with the interior of the machine barrel.

Preferably, the cold air inlet is located near one end of the hopper; and a valve is arranged on the cold air inlet.

Preferably, the cold air outlet is located at the other end away from the hopper; and a valve is arranged on the cold air outlet.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model provides a splicing machine barrel for an injection molding machine, which can be filled with cold air to realize rapid cooling and can not damage a heating system (electric heating equipment); all parts of the splicing cylinder can be disassembled, so that the assembly difficulty and the (connecting hole opening) processing difficulty are reduced.

Drawings

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

Fig. 2 is a schematic view of the heater structure of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

As shown in fig. 1 to 2, a barrel for a splicing machine for injection molding machines includes a barrel 1, a heater, and a hopper 2.

This barrel 1 is by double-deck toper bobbin sheet 11, left bobbin sheet 12, right bobbin sheet 13 spiro union concatenation of each other forms, right side bobbin sheet 13, screw rod through-hole has been seted up on the bobbin sheet 12 of a left side respectively, the injection port, supply the injection screw respectively, the material passes through, a plurality of heater installing ports have been seted up on the outer toper bobbin sheet 11, air conditioning entry 10 and air conditioning export 14, air conditioning entry 10 is located the one end (being equipped with valve 15 on the air conditioning entry 10) that is close to hopper 2, air conditioning export 14 is located the other end (being equipped with valve 15 on the air conditioning export 14) of keeping away from hopper 2, and the hopper installing port has been seted up correspondingly to double-deck toper bobbin sheet 11, the installation: the lower end of the hopper 2 is additionally provided with a buffer part 21, and the buffer part 21 is sleeved in the hopper mounting hole in a matching way and is communicated with the interior of the machine barrel 1.

The heater consists of an electric heating device 3 attached to an inner-layer conical barrel plate 11, a heat insulation layer 4 arranged outside the electric heating device 3, a spring 5 arranged on the heat insulation layer 4, and a T-shaped fixture block 6 connected with the spring 5. The electric heating device 3 is a spiral heating pipe; a hoop member 7 is arranged on the inner wall of the heat insulation layer 4, and an electric heating device 3 is sleeved in the hoop member 7 for fixing; the vertical plate of the T-shaped fixture block 6 is matched and clamped in the heater mounting opening, and the bottom plate of the T-shaped fixture block 6 blocks the heater mounting opening; the heat insulation layer 4 is H-shaped; the H-shaped heat insulation layer is divided into an upper opening and a lower opening through a middle heat insulation strip, the heater 3 is arranged in the lower opening, the middle heat insulation strip is fixedly provided with a spring 5, the T-shaped fixture block 6 is arranged in the upper opening in a sliding way, and the fixture block 6 cannot slide out of the upper opening (limiting function); at the moment, the spring 5 is in a compressed state, and the height between the T-shaped fixture block 6 and the heat insulation layer 4 is higher than the thickness of the outer-layer conical barrel plate 11.

In order to monitor the temperature in the machine barrel conveniently, a threaded hole is formed in the outer-layer conical barrel plate 11, a temperature sensor 8 is screwed in the threaded hole, and the temperature sensor 8 extends into the machine barrel 1.

The utility model discloses a theory of operation does: firstly, assembling a double-layer conical barrel plate and a heater, clamping and fixing the heater under the action of elastic compression force, finally, installing a left barrel plate, a right barrel plate, a hopper and a temperature sensor, introducing cold air into a cold air inlet after the left barrel plate and the right barrel plate are assembled, and taking away heat in a barrel through a cold air outlet to discharge;

because the electric heating equipment is protected by the heat insulation layer, cold air can be introduced into the machine barrel, and the electric heating equipment cannot be damaged;

because the space between the double-layer conical cylinder plates is not large, the heating and heat preservation effects of the cylinder are good, the heat cannot be dissipated too much, and the cold air ensures the quick cooling effect;

all parts can be disassembled, so that the assembly and (connecting hole opening) processing difficulty is reduced, and even the space area between the double-layer conical cylinder plates can be adjusted due to the existence of the spring.

The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the right of the present invention should not be limited thereby, and therefore, modifications, equivalent changes, improvements, etc. made in the claims of the present invention are still included in the scope of the present invention.

Claims

1. The utility model provides a concatenation barrel for injection molding machine which characterized in that includes:

2. The barrel assembly of claim 1, wherein the tapered barrel plate of the outer layer has a threaded hole therein.

3. The split barrel of claim 2, wherein a temperature sensor is threaded into the threaded bore, the temperature sensor extending into the interior of the barrel.

4. The splice barrel for an injection molding machine of claim 1 wherein said electrical heating device is a spiral heating tube.

5. The splicing machine barrel for the injection molding machine according to claim 1 or 4, wherein a hoop member is arranged on the inner wall of the heat insulation layer, and an electric heating device is sleeved in the hoop member for fixing.

6. The splicing cylinder for the injection molding machine of claim 5, wherein the fixture block is T-shaped, a vertical plate of the T-shaped fixture block is matched and clamped in the heater mounting opening, and a bottom plate of the T-shaped fixture block blocks the heater mounting opening.

7. The split joint barrel for the injection molding machine according to claim 6, wherein the thermal insulation layer is H-shaped; the H-shaped heat insulation layer is divided into an upper opening and a lower opening through the middle heat insulation strip, the heater is arranged in the lower opening, the spring is fixedly arranged on the middle heat insulation strip, the clamping block is arranged in the upper opening in a sliding mode, and the clamping block cannot slide out of the upper opening.

8. The splicing machine barrel for the injection molding machine as claimed in claim 1, wherein a buffering part is additionally arranged at the lower end of the hopper, and the buffering part is sleeved in the hopper mounting opening in a matching manner and communicated with the interior of the machine barrel.

9. A splice barrel for an injection molding machine as claimed in claim 1 wherein said cold gas inlet is located near one end of the hopper; and a valve is arranged on the cold air inlet.

10. A splice barrel for an injection molding machine as claimed in claim 1 wherein said cold gas outlet is located at the other end remote from the hopper; and a valve is arranged on the cold air outlet.