CN210910880U

CN210910880U - Injection moulding equipment of foaming PVC pipe fitting

Info

Publication number: CN210910880U
Application number: CN201921514326.0U
Authority: CN
Inventors: 张洪
Original assignee: Jiangyin Deboren Pipe Fitting Co ltd
Current assignee: Jiangyin Deboren Pipe Fitting Co ltd
Priority date: 2019-09-11
Filing date: 2019-09-11
Publication date: 2020-07-03
Anticipated expiration: 2029-09-11

Abstract

The utility model relates to an injection molding device for foaming PVC pipe fittings, which comprises an injection molding machine and a hopper dryer positioned on the injection molding machine, wherein the hopper dryer comprises a drying barrel and a heating mechanism arranged beside the drying barrel; an exhaust pipe is arranged at the top of the drying barrel, and an air outlet of the exhaust pipe is connected with a hot air recoverer; the heating mechanism comprises a fan connected with the hot air recoverer; the injection molding machine comprises a machine barrel, wherein a screw is arranged in the machine barrel; a feeding barrel is vertically arranged at the right upper end of the machine barrel, a feeding port is arranged at the lower end of the feeding barrel, and the interior of the machine barrel is communicated with the feeding barrel through the feeding port; a spirally wound water pipe is sleeved on the cylinder wall of the machine cylinder and is connected with a water tank, one end of the water pipe is connected with the outflow port, and the other end of the water pipe is connected with the backflow port; and a buffer device is arranged on the inner wall of the lower end of the feeding barrel and above the feeding port. The utility model relates to an injection moulding equipment of foaming PVC pipe fitting, the energy saving keeps the air cleanness in the factory building, guarantees barrel normal operating, avoids the screw rod to damage.

Description

Injection moulding equipment of foaming PVC pipe fitting

Technical Field

The utility model relates to an injection moulding equipment of foaming PVC pipe fitting.

Background

PVC pipe fitting is widely used for carrying liquid, gaseous pipe network, and the injection molding machine need dry PVC with the desiccator before moulding plastics into the pipe fitting with PVC, and the product quality will be influenced to the direct moulding plastics of moist PVC. The dryer is a mechanical device for reducing moisture of materials by using heat energy, and is used for drying objects. The dryer vaporizes the moisture in the material by heating to obtain a solid material of a specified moisture content. The purpose of drying is for material use or further processing requirements. The hopper dryer is a replacement product of a standard hot air dryer, fully considers the environmental protection factor on the basis of the original function, is improved, and can dry wet raw materials due to packaging, transportation or recovery. The direct-type design is particularly suitable for being directly installed on a plastic forming machine for drying, and is quick and space-saving.

An injection molding machine is a main molding device for making thermoplastic plastics or thermosetting plastics into plastic products with various shapes by using a plastic molding die. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity. The injection molding machine has the capability of molding plastic products with complex shapes, precise sizes or dense textures with metal inserts in one step, and is widely applied to various fields of national defense, electromechanics, automobiles, transportation, building materials, packaging, agriculture, cultural and educational sanitation and daily life of people.

The traditional dryer discharges hot air after drying materials in a drying barrel into a plant through an exhaust pipe, so that the temperature in the plant is increased, the air quality is poor, and hot air energy resources are wasted; in addition, the bottom of the drying barrel of the traditional drying machine is difficult to be combined with the base and is not convenient for replacing and cleaning raw materials, so that the operation is time-consuming and the working efficiency is low; in addition, the plastic products can generate certain odors when being dried at high temperature, and if the odors are not removed in time, the air cleanness of a factory building can be influenced; finally, some iron impurities exist in the materials inevitably, and the iron impurities can pollute the materials and even damage machines.

The machine barrel of the injection molding machine is in a heating state for a long time in the working process, heat dissipation is difficult, if the machine barrel is not subjected to heat dissipation treatment, the machine barrel is easily damaged, the service life of the machine barrel is shortened, the production cost of a manufacturer is increased, and the working efficiency and the product quality are also influenced if the machine barrel is damaged in the working process. When the feeding barrel of the traditional injection molding machine is used for feeding materials, the materials vertically fall into the machine barrel of the injection molding machine from the feeding barrel, and strong impact force is generated on the screw rod in the machine barrel, so that the screw rod is easy to damage, the service life of the screw rod is prolonged, the cost of a manufacturer is improved, and the installation and maintenance of the screw rod in the machine barrel are complex, so that the normal use of an injection system is influenced.

Therefore present plastic drying machine trade urgently needs one kind and promotes work efficiency, and the energy saving keeps the air cleanness in the factory building, guarantees that the material is not contaminated to and can cool off the barrel, guarantee its normal operating, set up buffer in the charging barrel, avoid the screw rod to receive the injection moulding equipment of a foaming PVC pipe fitting that powerful impact force and damaged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned not enough, provide a promote work efficiency, the energy saving keeps the air cleanness in the factory building, guarantees that the material is not polluted to and can cool off the barrel, guarantee its normal operating, set up buffer in the charging barrel, avoid the screw rod to receive powerful impact force and the injection moulding equipment of a foaming PVC pipe fitting that damages.

The purpose of the utility model is realized like this:

an injection molding device for a foamed PVC pipe fitting comprises an injection molding machine and a hopper dryer arranged on the injection molding machine, wherein the hopper dryer comprises a drying barrel and a heating mechanism arranged beside the drying barrel; an exhaust pipe is arranged at the top of the drying barrel, and an air outlet of the exhaust pipe is connected with a hot air recoverer; an activated carbon filling layer is arranged inside the drying barrel; the lower end of the drying barrel is provided with a hopper communicated with the drying barrel; the heating mechanism comprises a fan which is connected with the hot air recoverer; the lower end of the fan is connected with a heating cylinder, and the lower end of the heating cylinder is communicated with a hopper positioned at the lower end of the drying barrel; an electric cabinet is arranged outside the heating cylinder; an electric heating tube is arranged in the heating cylinder; a metal thermometer is arranged on the outer wall of the heating cylinder; the lower end of the hopper is provided with a base, and the top of the base is separated from the bottom of the hopper through a drawing plate; the base is made of a magnetic material; two discharging pipes which are inclined downwards are arranged on the base; the bottom of the base is provided with a detachable bottom cover;

the injection molding machine comprises a machine barrel, and a screw is transversely arranged in the machine barrel; a detachable feeding barrel is vertically arranged at the upper right end of the machine barrel, after a bottom cover of a base of the hopper dryer is taken down, the base is sleeved outside the upper end of the feeding barrel, a feeding port is formed in the lower end of the feeding barrel, and the interior of the machine barrel is communicated with the feeding barrel through the feeding port; the water pipe is sleeved on the cylinder wall of the machine barrel and spirally wound on the cylinder wall of the machine barrel; the water pipe is connected with a water tank, the water tank is provided with an outflow port and a backflow port, one end of the water pipe is connected with the outflow port, and the other end of the water pipe is connected with the backflow port; a buffer device is arranged on the inner wall of the lower end of the feeding cylinder above the feeding port, the buffer device comprises a connecting shaft horizontally arranged on the inner wall of the feeding cylinder, a hollow shaft sleeve is sleeved on the connecting shaft, a guide plate is fixed on the hollow shaft sleeve, and the guide plate rotates around the connecting shaft along with the hollow shaft sleeve; the lower surface of the guide plate is provided with a plurality of limiting rods vertical to the lower surface of the guide plate, and two adjacent limiting rods and the lower surface of the guide plate form a groove; the inner wall of the feeding barrel below the connecting shaft is hinged with a supporting rod, one end of the supporting rod is hinged with the inner wall of the feeding barrel, the other end of the supporting rod is inserted into the groove in the lower surface of the guide plate, the guide plate is supported, and the guide plate is obliquely arranged downwards.

The utility model relates to an injection moulding equipment of foaming PVC pipe fitting, the upper end of drying bucket is provided with the bung, and the side of bung is provided with the handle.

The utility model relates to an injection moulding equipment of foaming PVC pipe fitting, the hopper passes through hinge fixed connection with the drying barrel.

The utility model relates to an injection moulding equipment of foaming PVC pipe fitting, the surface of drying bucket is seted up and is looked at the material window.

The utility model relates to an injection moulding equipment of foaming PVC pipe fitting, the base window has been seted up on the base.

The utility model relates to an injection moulding equipment of foaming PVC pipe fitting, be provided with the heat exchanger in the water tank.

The utility model relates to an injection moulding equipment of foaming PVC pipe fitting, the other fan that is provided with of barrel.

The utility model relates to an injection moulding equipment of foaming PVC pipe fitting, a plurality of through-holes have been seted up on the guide plate.

The utility model relates to an injection moulding equipment of foaming PVC pipe fitting installs the solenoid electric valve on water pipe (25).

The utility model discloses the injection moulding equipment of PVC pipe fitting has following advantage:

the drier in the injection molding equipment for the PVC pipe fittings of the utility model leads hot air exhausted by the exhaust pipe into the fan through the hot air recoverer, and the hot air is recycled by the fan, thereby saving energy, saving company cost, avoiding temperature rise in the plant and keeping clean air in the plant; the bottom of the hopper of the dryer in the injection molding equipment of the PVC pipe fitting is separated from the base through the pulling plate, so that the separation is quick and convenient, the cleaning is quicker, the raw materials are convenient to replace, and the working time is saved; the dryer in the injection molding equipment for the PVC pipe fitting is provided with the active carbon filling layer inside the drying barrel, so that the smell in the drying barrel is absorbed, and the air is kept clean; the base in the dryer in the injection molding equipment for the PVC pipe fitting has magnetic force, can effectively remove iron sundries in raw materials, plays a role in cleaning materials, can prevent the raw materials from being polluted, and ensures the product quality;

the injection molding machine in the injection molding equipment for PVC pipe fittings of the utility model is provided with the spiral water pipe outside the machine barrel for cooling the machine barrel, and the two end parts of the water pipe are respectively provided with the outflow port and the backflow port to form water circulation and improve cooling efficiency; the utility model discloses injection molding machine among the injection moulding equipment of PVC pipe fitting has set up buffer in the pan feeding mouth department of charging barrel, and buffer has contained two adjustable inclination's guide plate, transfers the impact force of material to the guide plate, avoids the material to fall to the screw rod at a high speed on, avoids the screw rod to receive the damage, promotes its life, guarantees the normal operating of equipment.

Drawings

Fig. 1 is the utility model discloses the structure schematic diagram of the injection moulding equipment of PVC pipe fitting.

Fig. 2 is a front view of the hopper dryer of fig. 1.

Fig. 3 is a side view of the hopper dryer of fig. 1.

Fig. 4 is a schematic view of the injection molding machine of fig. 1.

Fig. 5 is a schematic view of the structure of the barrel of fig. 4.

Fig. 6 is a schematic view of the structure of the water pipe of the injection molding machine of fig. 1.

Fig. 7 is a schematic structural diagram of the buffering device in fig. 5.

Fig. 8 is a top view of the cushioning device of fig. 5.

In the figure: the device comprises a hopper dryer 101, an injection molding machine 201, a drying barrel 11, a barrel cover 1.1, a material observing window 1.2, a handle 1.3, an exhaust pipe 1.4, a hot air recoverer 1.5, a heating mechanism 12, a fan 2.1, an electric cabinet 2.2, a heating barrel 2.3, an electric heating pipe 2.4, a metal thermometer 2.5, a base 13, a base window 3.1, a discharge pipe 3.2, a hopper 14, a machine barrel 21, a screw rod 22, a feeding barrel 23, a feeding port 24, a water pipe 25, a water tank 26, an outflow port 6.1, a backflow port 6.2, a heat exchanger 6.3, a fan 27, a buffer device 28, a connecting shaft 8.1, a hollow shaft sleeve 8.2, a limiting rod 8.3, a supporting rod 8.4, a groove 8.5 and a guide plate.

Detailed Description

Referring to fig. 1 to 8, the utility model relates to an injection molding equipment of foaming PVC pipe fitting includes injection molding machine 201 and sets up hopper drying machine 101 on injection molding machine 201.

The hopper dryer 101 includes a drying tub 11 and a heating mechanism 12 disposed beside the drying tub 11.

The upper end of the drying barrel 11 is provided with a barrel cover 1.1, and the side edge of the barrel cover 1.1 is provided with a handle 1.3; the surface of the drying barrel 11 is provided with a material observation window 1.2, so that the condition in the drying barrel 11 can be observed conveniently; an exhaust pipe 1.4 is arranged at the top of the drying barrel 11, the exhaust pipe 1.4 exhausts hot air in the drying barrel 11, and an air outlet of the exhaust pipe 1.4 is connected with a hot air recoverer 1.5; an active carbon filling layer is arranged in the drying barrel 11 and is used for adsorbing odor generated when the plastic is dried; the lower end of the drying barrel 11 is provided with a hopper 14 communicated with the drying barrel, and the hopper 14 is fixedly connected with the drying barrel 11 through a hinge.

The heating mechanism 12 comprises a fan 2.1 for blowing high-temperature hot air into the drying barrel 11, the fan 2.1 is connected with a hot air recoverer 1.5 to form a semi-closed circulation loop, hot air discharged by an exhaust pipe 1.4 of the drying barrel 7 enters the fan 2.1 through the hot air recoverer 1.5 for circulation use, the temperature in a plant is prevented from rising while energy is saved, the air in the plant is kept clean, and the product quality is ensured; the lower end of the fan 2.1 is connected with a heating cylinder 2.3, and the lower end of the heating cylinder 2.3 is communicated with a hopper 14 positioned at the lower end of the drying barrel 11; an electric cabinet 2.2 is arranged outside the heating cylinder 2.3; an electric heating tube 2.4 is arranged in the heating cylinder 2.3, and the electric heating tube 2.4 heats the air in the heating cylinder 2.3; and a metal thermometer 2.5 for observing temperature is arranged on the outer wall of the heating cylinder 2.3.

The lower end of the hopper 14 is provided with a base 13 for supporting the hopper 14, the top of the base 13 is separated from the bottom of the hopper 14 through a drawing plate, and after the materials are dried by the drying barrel 11, the drawing plate is only required to be drawn away, and the materials can fall into the base 13 and be discharged, so that the materials are cleaned more quickly, the raw materials are convenient to replace, and the working time is saved; the base 13 is made of magnetic materials, so that iron impurities in the raw materials can be effectively removed, the material cleaning effect is achieved, and the raw materials can be prevented from being polluted; a base window 3.1 is arranged on the base 13, so that the internal condition can be observed conveniently; two downward inclined discharge pipes 3.2 are arranged on the base 13, so that the discharge time is shortened, and the working efficiency is improved. The bottom of the base 13 is provided with a detachable bottom cover.

The injection molding machine 201 comprises a machine barrel 21, and a screw 22 for conveying materials is transversely arranged in the machine barrel 21; a detachable feeding cylinder 23 is vertically arranged at the upper right end of the machine barrel 21, after a bottom cover of a base 13 of the hopper dryer 101 is taken down, the base 13 is sleeved outside the upper end of the feeding cylinder 23, and materials dried in the hopper dryer 101 directly fall into the feeding cylinder 23; the lower end of the feeding cylinder 23 is a feeding port 24, and the interior of the machine barrel 21 is communicated with the feeding cylinder 23 through the feeding port 24.

A water pipe 25 is sleeved on the cylinder wall of the machine barrel 21, the water pipe 25 is spirally wound on the cylinder wall of the machine barrel 21, and an electromagnetic control valve is arranged on the water pipe 25; the water pipe 25 is connected with a water tank 26, the water tank 26 is provided with an outlet 6.1 and a return port 6.2, one end of the water pipe 25 is connected with the outlet 6.1, and the other end is connected with the return port 6.2; cooling water firstly flows into the water pipe 25 through the outflow port 6.1 to cool the machine barrel 21, and after the water pipe 25 is filled with the cooling water, the cooling water returns to the return port 6.2 from the water pipe 8 and then enters the water tank 26, so that a water circulation cooling system is formed, and the cooling efficiency is improved; a heat exchanger 6.3 for adjusting the water temperature is arranged in the water tank 26; a fan 27 is arranged beside the machine barrel 21, the fan 27 is used for blowing air to the machine barrel 21 for cooling, and a water pipe 25 and the fan are used for double cooling, so that the heat dissipation effect of the machine barrel 21 is better, and the cooling is faster.

The lower end of the feeding cylinder 23 is provided with a buffer device 28 on the inner wall above the feeding port 24, and the buffer device 28 prevents the material vertically falling from the feeding cylinder 23 from directly impacting the screw 22 and causing damage to the screw. The buffer device 28 comprises two connecting shafts 8.1 horizontally arranged on the inner wall of the feeding cylinder 23, hollow shaft sleeves 8.2 are respectively sleeved on the two connecting shafts 8.1, the hollow shaft sleeves 8.2 can rotate around the connecting shafts 8.1, guide plates 29 are fixed on the two hollow shaft sleeves 8.2, and the guide plates 29 rotate around the connecting shafts 8.1 along with the hollow shaft sleeves 8.2; a plurality of through holes through which materials can pass are formed in the two guide plates 29 and can be used for shunting the materials, so that on one hand, a large amount of materials are prevented from being accumulated on the guide plates 29 to increase the load of the guide plates, and on the other hand, the speed of the materials entering the machine barrel 21 is prevented from being too slow; the lower surface of the guide plate 29 is provided with a plurality of limiting rods 8.3 vertical to the lower surface of the guide plate, and a groove 8.5 is formed between each two adjacent limiting rods 8.3 and the lower surface of the guide plate 29; all articulated on the inner wall of the feed cylinder 23 that is located two connecting axles 8.1 below have a bracing piece 8.4, and the one end of bracing piece 8.4 is articulated with the inner wall of feed cylinder 23, and the other end is then inserted in the recess 8.5 of guide plate 29 lower surface to support guide plate 29, guide plate 29 sets up downwards to one side, thereby the material in the buffer feed cylinder 23, make the speed that the material landing is on screw rod 22 slow down, reduce the impact force to screw rod 22. When the distance between the two guide plates 29 (namely the inclination angle of the guide plates 29) needs to be adjusted, the position of the support rod 8.4 inserted in the groove 8.5 is changed, when the distance between the two guide plates 29 needs to be enlarged, the position of the support rod 8.4 inserted in the groove 8.5 is moved upwards, and on the contrary, when the distance between the two guide plates 29 needs to be reduced, the position of the support rod 8.4 inserted in the groove 8.5 is moved downwards.

Claims

1. The utility model provides an injection moulding equipment of foaming PVC pipe fitting which characterized in that: the automatic feeding and drying device comprises an injection molding machine (201) and a hopper dryer (101) arranged on the injection molding machine (201), wherein the hopper dryer (101) comprises a drying barrel (11) and a heating mechanism (12) arranged beside the drying barrel (11); an exhaust pipe (1.4) is arranged at the top of the drying barrel (11), and an air outlet of the exhaust pipe (1.4) is connected with a hot air recoverer (1.5); an active carbon filling layer is arranged in the drying barrel (11); the lower end of the drying barrel (11) is provided with a hopper (14) communicated with the drying barrel; the heating mechanism (12) comprises a fan (2.1), and the fan (2.1) is connected with a hot air recoverer (1.5); the lower end of the fan (2.1) is connected with a heating cylinder (2.3), and the lower end of the heating cylinder (2.3) is communicated with a hopper (14) positioned at the lower end of the drying barrel (11); an electric cabinet (2.2) is arranged outside the heating cylinder (2.3); an electric heating tube (2.4) is arranged in the heating cylinder (2.3); a metal thermometer (2.5) is arranged on the outer wall of the heating cylinder (2.3); the lower end of the hopper (14) is provided with a base (13), and the top of the base (13) is separated from the bottom of the hopper (14) through a drawing plate; the base (13) is made of a magnetic material; two discharging pipes (3.2) which are inclined downwards are arranged on the base (13); the bottom of the base (13) is provided with a detachable bottom cover;

the injection molding machine (201) comprises a machine barrel (21), and a screw (22) is transversely arranged in the machine barrel (21); a detachable feeding barrel (23) is vertically arranged at the upper right end of the machine barrel (21), after a bottom cover of a base (13) of the hopper dryer (101) is taken down, the base (13) is sleeved outside the upper end of the feeding barrel (23), a feeding port (24) is formed in the lower end of the feeding barrel (23), and the interior of the machine barrel (21) is communicated with the feeding barrel (23) through the feeding port (24); a water pipe (25) is sleeved on the cylinder wall of the machine barrel (21), and the water pipe (25) is spirally wound on the cylinder wall of the machine barrel (21); the water pipe (25) is connected with a water tank (26), the water tank (26) is provided with an outflow port (6.1) and a backflow port (6.2), one end of the water pipe (25) is connected with the outflow port (6.1), and the other end of the water pipe is connected with the backflow port (6.2); a buffer device (28) is arranged on the inner wall of the lower end of the feeding cylinder (23) above the feeding port (24), the buffer device (28) comprises a connecting shaft (8.1) horizontally arranged on the inner wall of the feeding cylinder (23), a hollow shaft sleeve (8.2) is sleeved on the connecting shaft (8.1), a guide plate (29) is fixed on the hollow shaft sleeve (8.2), and the guide plate (29) rotates around the connecting shaft (8.1) along with the hollow shaft sleeve (8.2); the lower surface of the guide plate (29) is provided with a plurality of limiting rods (8.3) vertical to the lower surface of the guide plate, and grooves (8.5) are formed between the adjacent two limiting rods (8.3) and the lower surface of the guide plate (29); the inner wall of the feeding barrel (23) positioned below the connecting shaft (8.1) is hinged with a supporting rod (8.4), one end of the supporting rod (8.4) is hinged with the inner wall of the feeding barrel (23), the other end of the supporting rod is inserted into a groove (8.5) on the lower surface of the guide plate (29) to support the guide plate (29), and the guide plate (29) is obliquely arranged downwards.

2. The injection molding apparatus of a foamed PVC pipe according to claim 1, wherein: a barrel cover (1.1) is arranged at the upper end of the drying barrel (11), and a handle (1.3) is arranged on the side edge of the barrel cover (1.1).

3. The injection molding apparatus of a foamed PVC pipe according to claim 1, wherein: the hopper (14) is fixedly connected with the drying barrel (11) through a hinge.

4. The injection molding apparatus of a foamed PVC pipe according to claim 1, wherein: the surface of the drying barrel (11) is provided with a material observation window (1.2).

5. The injection molding apparatus of a foamed PVC pipe according to claim 1, wherein: a base window (3.1) is arranged on the base (13).

6. The injection molding apparatus of a foamed PVC pipe according to claim 1, wherein: and a heat exchanger (6.3) is arranged in the water tank (26).

7. The injection molding apparatus of a foamed PVC pipe according to claim 1, wherein: and a fan (27) is arranged beside the machine barrel (21).

8. The injection molding apparatus of a foamed PVC pipe according to claim 1, wherein: the guide plate (29) is provided with a plurality of through holes.

9. The injection molding apparatus of a foamed PVC pipe according to claim 1, wherein: an electromagnetic control valve is arranged on the water pipe (25).