CN114801098A

CN114801098A - Novel injection molding machine screw rod heating device

Info

Publication number: CN114801098A
Application number: CN202210485350.6A
Authority: CN
Inventors: 乐婷婷
Original assignee: Ningbo Hwamda Machinery Manufacturing Co ltd
Current assignee: Ningbo Hwamda Machinery Manufacturing Co ltd
Priority date: 2022-05-06
Filing date: 2022-05-06
Publication date: 2022-07-29

Abstract

The invention relates to the field of injection molding machines, in particular to a novel screw rod heating device of an injection molding machine, which comprises a frame, a hopper and a charging barrel, the screw rod, nozzle and the heating ring of being convenient for dismantle fast and installation, the first installing support of fixed mounting and backup pad in the frame, the one end fixedly connected with axle sleeve end cover of backup pad, install the second bearing in the backup pad, the feed cylinder passes the top that is located the frame that first installing support and axle sleeve end cover are the horizontality, nozzle threaded connection is at the front end of feed cylinder, the screw rod passes the second axle socket joint and establishes in the feed cylinder, the logical groove that runs through the screw rod is seted up to the screw rod along the axis direction, it is equipped with the heating rod to lead to the inslot interpolation, set up the pan feeding mouth that runs through feed cylinder section of thick bamboo wall on the feed cylinder, the hopper is the fixed connection of vertical direction in pan feeding mouth department, the heating ring has two and all establishes on the feed cylinder, two heating rings all are located the front end portion that is close to the screw rod. The application can ensure that the plastic particles are uniformly heated and plasticized, and is convenient for the replacement and maintenance of the heating device.

Description

Novel injection molding machine screw rod heating device

Technical Field

The invention relates to the field of injection molding machines, in particular to a novel injection molding machine screw rod heating device.

Background

An injection molding machine is also known as an injection molding machine or an injection machine. It is a main forming equipment for making various shaped plastic products from thermoplastic plastics or thermosetting plastics by using plastic forming mould. The device is divided into a vertical type, a horizontal type and a full-electric type. 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 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 injection system consists of a plasticizing device and a power transmission device. The screw injection molding machine plasticizing device mainly comprises a feeding device, a charging barrel, a screw, a glue passing assembly and a nozzle part. The power transmission device comprises an injection oil cylinder, an injection seat moving oil cylinder and a screw rod driving device.

To current screw injection molding machine, it is at the in-process of moulding plastics, when heating plastify to the plastic pellet, thereby mainly heat through the heater of installing outside the feed cylinder and make the plastic pellet be the molten state, and this process leads to being close to the plastic pellet of screw rod part and is heated inhomogeneously because only relying on outside heat-conduction, and simultaneously, current heater is installed in the feed cylinder outside to daily change and maintenance, and is dismantling and the installation too loaded down with trivial details.

Disclosure of Invention

Based on this, it is necessary to provide a novel screw heating device for an injection molding machine, which aims at the problems in the prior art.

In order to solve the problems of the prior art, the invention adopts the technical scheme that:

a novel screw rod heating device of an injection molding machine comprises a rack, a hopper, a charging barrel, a screw rod, a nozzle and a heating ring convenient to rapidly disassemble and install, wherein a first mounting support and a support plate are fixedly installed on the rack, one end of the support plate, which is close to the first mounting support, is fixedly connected with a shaft sleeve end cover, a second bearing is installed on the support plate, which is coaxial with the shaft sleeve end cover, the charging barrel passes through the first mounting support and the shaft sleeve end cover and is positioned above the rack in a horizontal state, the nozzle is in threaded connection with the front end of the charging barrel, the screw rod passes through a second bearing socket and is arranged in the charging barrel, the screw rod comprises a rod body and a screw groove, the diameter of the rod body is gradually increased along the axial direction of the charging barrel, the screw groove is always attached to the charging barrel, a through groove penetrating through the screw rod is formed in the axial direction of the screw rod, the heating rod is inserted in the through groove, the wire end of the heating rod is positioned outside the tail end of the screw rod, and a feeding hole penetrating through the barrel wall is formed in one position, at the tail end of the charging barrel, the hopper is fixedly connected to the feed inlet in the vertical direction, the number of the heating rings is two, the two heating rings are sleeved on the charging barrel, and the two heating rings are located at the front end part close to the screw rod.

Preferably, the heating ring includes first semicircle ring, the second semicircle ring, round bar and check lock lever, the one end of first board semicircle ring is rotated with the one end of second semicircle ring and is connected, the first flange of outer wall fixedly connected with of first semicircle ring, the both ends of first flange are rotated respectively and are connected with a depression bar, the other pot head of two depression bars is equipped with a plastics handle, the round bar runs through the mid portion of two depression bars, the check lock lever is the U-shaped form, the round bar is passed respectively in the both sides of two depression bars at the both ends of check lock lever, the both ends of check lock lever are locked on the round bar through a plurality of nuts, fixedly connected with is two couples along first flange symmetric distribution on the second semicircle ring, during first semicircle ring and second semicircle ring locking state, the check lock lever is hung on two couples.

Preferably, a socket is installed on the first semicircular ring and the second semicircular ring, heating wires are uniformly distributed in the first semicircular ring and the second semicircular ring, and the heating wires are electrically connected with the socket.

Preferably, the first semicircular ring and the second semicircular ring are both made of cast aluminum.

Preferably, the diameter of heating rod is less than the logical groove diameter in the screw rod, and the both ends of heating rod all overlap and are equipped with a first bearing, and the slotted hole that is used for holding first bearing is all offered at the both ends of screw rod, and one side at the wiring end of heating rod is fixed and is provided with the second support, and the one end fixedly connected with dog that the second support is close to the heating rod.

Preferably, a slotted hole at the front end of the screw rod is internally threaded with an end cap, the top end of the end cap is flush with the front end of the screw rod, and the bottom end of the end cap abuts against the first bearing at the bottom end of the slotted hole.

Preferably, a protective cover is arranged above the rack, the protective cover is in a semicircular arc shape, and the protective cover covers the two heating rings.

Preferably, a human-computer interaction system is fixedly arranged on the rack, an alarm lamp is fixedly mounted at the upper end of the human-computer interaction system, and the alarm lamp is electrically connected with the human-computer interaction system.

Preferably, the end of the screw rod is connected with a rotary driving assembly, the rotary driving assembly comprises a gear box, a first gear, a second gear and a rotary driver, an annular groove is formed in the screw rod, the first gear is tightly sleeved in the annular groove in the screw rod, the second gear is meshed with the first gear, the first gear and the second gear are both arranged in the gear box, the end of the screw rod penetrates through the gear box and continues to extend outwards, and the rotary driver is tightly connected with the second gear.

Preferably, a linear propulsion assembly used for driving the screw to move linearly is fixedly arranged between the rotary driving assembly and the rack, the linear propulsion assembly is a double-screw rod sliding table mechanism, and the gear box and the rotary driver are fixedly arranged on the sliding table.

Preferably, the frame top is located hopper department and still fixed mounting has the rail guard, and the rail guard includes footing, bottom plate and guardrail, and footing fixed mounting is in the frame, and bottom plate fixed mounting is in the top of footing, offers the installing port that is used for installing the hopper on the bottom plate, and guardrail fixed connection is in the top of bottom plate, and the guardrail encircles bottom plate a week.

Compared with the prior art, the beneficial effect of this application is:

1. the feeding device is provided with a rack, a hopper, a material cylinder, a screw rod and heating rings which are convenient to disassemble and install quickly, wherein a first mounting support and a support plate are fixedly installed on the rack, the material cylinder penetrates through the first mounting support and the support plate and is positioned above the rack in a horizontal state, the screw rod is inserted in the material cylinder and comprises a rod body and a screw groove, the diameter of the rod body is gradually increased along the axial direction of the material cylinder, the screw groove is always attached to the material cylinder, a through groove penetrating through the screw rod is formed in the screw rod along the axial direction, a heating rod is inserted in the through groove, the plug wire end of the heating rod is positioned outside the tail end of the screw rod, a feeding hole penetrating through the wall of the material cylinder is formed in one position of the tail end of the material cylinder, the hopper is fixedly connected to the feeding hole in the vertical direction, the two heating rings are arranged, the two heating rings are both sleeved on the material cylinder, and are both positioned at the front end parts close to the screw rod, when plastic granules entered into the feed cylinder through the pan feeding mouth by the hopper in, through the rotation of screw rod, can make plastic granules go to the screw rod front end under the drive of spiral groove, in-process advances at plastic granules, the diameter of screw rod body crescent gradually, space between spiral groove and the feed cylinder reduces gradually, the plastic granules receives the friction between screw rod and the feed cylinder inner wall and extrudees bigger and bigger, plastic granules's temperature also has the rise of certain degree because the friction extrusion, make plastic granules have a preliminary process of preheating, when plastic granules conveys the timesharing of screw rod front end portion, heating through the heating ring, the heat is transferred to plastic granules from the feed cylinder and is made plastic granules melt, insert in the middle of the screw rod again and be equipped with the heating rod, can make the plastic granules that are close to the screw rod also can be heated and melt, thereby the inhomogeneous problem of plastic granules being heated has been solved.

2. The heating ring is provided with a first semicircular ring, a second semicircular ring, a round rod and a locking rod, one end of the first plate semicircular ring is rotatably connected with one end of the second semicircular ring, the outer wall of the first semicircular ring is fixedly connected with a first flange, two ends of the first flange are respectively rotatably connected with a pressure rod, the other end of each pressure rod is sleeved with a plastic handle, the round rod penetrates through the middle parts of the two pressure rods, the locking rod is U-shaped, two ends of the locking rod respectively penetrate through the round rods on two sides of the two pressure rods, two ends of the locking rod are locked on the round rod through a plurality of nuts, two hooks symmetrically distributed along the first flange are fixedly connected on the second semicircular ring, when the first semicircular ring and the second semicircular ring are in a locking state, the locking rod is hung on the two hooks, when the heating ring is installed, the first semicircular ring and the second semicircular ring are firstly wrapped on the outer side of the charging barrel, the plastic handle is held by a hand to hang the locking rod on the two hooks, then after pressing down the plastics handle certain degree, the locking lever fastening is hung in the couple to with first semicircle ring and the locking of second semicircle ring, when needs dismantle the heating ring, the hand is held the plastics handle and is upwards pulled hard and can be disengaged the locking lever from the couple, at this moment, alright take off the heating ring with light, realized that the heating ring is dismantled fast and is installed.

3. This application is through all establishing first semicircle ring and second semicircle ring into cast aluminium material, can strengthen the heat conductivility of heating ring to can be with the fine transmission of heat to the feed cylinder in.

4. The diameter of this application heating rod is less than the logical groove diameter in the screw rod, the both ends of heating rod are all overlapped and are equipped with a first bearing, the slotted hole that is used for holding first bearing is all offered at the both ends of screw rod, one side at the wiring end of heating rod is fixed and is provided with the second support, the one end fixedly connected with dog that the second support is close to the heating rod, after the heating rod assembly targets in place, owing to there is the support of first bearing, rotate through first bearing between heating rod and the screw rod and be connected, the heating rod passes through the dog joint and holds its wiring end, can guarantee when the screw rod rotates, the heating rod is still fixed, prevent the electric wire winding of heating rod.

5. This application is through being provided with the end cap, and end cap threaded connection is in the slotted hole, and the bottom butt of end cap catches first bearing, has blockking of end cap, both can be convenient for install first bearing, and the molten plastic pellet that also effectually prevents flows into logical inslot.

6. This application is through setting up the protection casing cover on the heating ring, can prevent to staff's accident scald, still opens certain heat preservation effect and dustproof effect.

7. This application has the rotation driving subassembly through the end-to-end connection at the screw rod, the rotation driving subassembly includes the gear box, first gear, second gear and rotary actuator, the annular has been seted up on the screw rod, the cover of first gear fastening is established in the annular on the screw rod, second gear and first gear engagement, first gear and second gear are all in the gear box, the end of screw rod runs through the gear box and continues outside extension, rotary actuator and second gear fastening connection, it rotates to drive second gear and first gear through the rotary actuator is rotatory, thereby it is rotatory to drive the screw rod, make the screw rod rotate through gear engagement's mode, can not influence the wiring of the terminal heating rod wiring end of screw rod.

Drawings

FIG. 1 is a perspective view of the present application;

FIG. 2 is a perspective view of the present application after concealing the frame, guard rails and shield;

FIG. 3 is an enlarged view of a portion of the present application at A in FIG. 2;

FIG. 4 is a top plan view of FIG. 2 of the present application;

FIG. 5 is a cross-sectional view taken along section B-B of FIG. 4 of the present application;

FIG. 6 is an enlarged view of a portion of the present application at C of FIG. 5;

FIG. 7 is an enlarged view of a portion of the present application at D of FIG. 5;

FIG. 8 is a perspective view of a heating ring of the present application;

FIG. 9 is an exploded perspective view of the screw, heater rod and barrel portion of the present application;

FIG. 10 is an enlarged view of a portion of this application at E in FIG. 9;

FIG. 11 is a perspective view of the shield of the present application;

FIG. 12 is a perspective view of the rotary drive assembly and linear propulsion assembly of the present application;

fig. 13 is a perspective view of the guard rail of the present application;

the reference numbers in the figures are:

1-a frame; 1 a-a first mounting bracket; 1 b-a support plate; 1b1 — second bearing; 1 c-shaft sleeve end cover;

2-a hopper;

3-a charging barrel; 3 a-a feeding port;

4-a nozzle;

5-heating ring; 5 a-a first semi-circular ring; 5a1 — first flange; 5 b-a second semicircular ring; 5b 1-hook; 5 c-round bar; 5 d-a locking lever; 5 e-a compression bar; 5 f-plastic handle; 5 g-socket;

6-screw rod; 6 a-a shaft; 6 b-a spiral groove; 6 c-through groove; 6 d-heating rod; 6 e-a first bearing; 6 f-slotted hole; 6 g-end cap; 6 h-ring groove;

7-a second support; 7 a-a stop block;

8-a protective cover;

9-a human-computer interaction system; 9 a-an alarm light;

10-a rotary drive assembly; 10 a-a gearbox; 10 b-a first gear; 10 c-a rotary drive; 10 d-second gear;

11-a linear propulsion assembly;

12-a guard rail; 12 a-a foot; 12 b-a base plate; 12 c-guardrail.

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

As shown in fig. 1-13, the present application provides:

a novel injection molding machine screw rod heating device comprises a machine frame 1, a hopper 2, a charging barrel 3, a screw rod 6, a nozzle 4 and a heating ring 5 convenient for quick disassembly and installation, wherein a first installation support 1a and a support plate 1b are fixedly installed on the machine frame 1, one end, close to the first installation support 1a, of the support plate 1b is fixedly connected with a shaft sleeve end cover 1c, a second bearing 1b1 is installed on the support plate 1b coaxially with the shaft sleeve end cover 1c, the charging barrel 3 penetrates through the first installation support 1a and the shaft sleeve end cover 1c and is positioned above the machine frame 1 in a horizontal state, the nozzle 4 is in threaded connection with the front end of the charging barrel 3, the screw rod 6 penetrates through a second bearing 1b1 and is inserted into the charging barrel 3, the screw rod 6 comprises a rod body 6a and a screw groove 6b, the diameter of the rod body 6a is gradually increased along the axial direction of the charging barrel 3, the screw groove 6b is always attached to the charging barrel 3, a through groove 6c penetrating through the screw rod 6 is formed in the axial direction of the screw rod 6, the heating rod 6d is inserted into the through groove 6c, the wire inserting end of the heating rod 6d is located on the outer side of the tail end of the screw rod 6, a feeding port 3a penetrating through the wall of the charging barrel 3 is formed in one position, located at the tail end of the screw rod 6, of the charging barrel 3, the hopper 2 is fixedly connected to the feeding port 3a in the vertical direction, the number of the heating rings 5 is two, the two heating rings 5 are all sleeved on the charging barrel 3, and the two heating rings 5 are located at the front end portion close to the screw rod 6.

Based on the above embodiments, the technical problem that the present application intends to solve is how to ensure that plastic particles in an injection molding machine are uniformly melted by heat. Therefore, the feeding device is provided with a rack 1, a hopper 2, a charging barrel 3, a screw 6 and a heating ring 5 which is convenient to disassemble and install quickly, wherein a first mounting bracket 1a and a supporting plate 1b are fixedly installed on the rack 1, the charging barrel 3 passes through the first mounting bracket 1a and the supporting plate 1b and is positioned above the rack 1 in a horizontal state, the screw 6 is inserted in the charging barrel 3, the screw 6 comprises a rod body 6a and a screw groove 6b, the diameter of the rod body 6a is gradually increased along the axial direction of the charging barrel 3, the screw groove 6b is always attached to the charging barrel 3, the screw 6 is provided with a through groove 6c which penetrates through the screw 6 along the axial direction, a heating rod 6d is inserted in the through groove 6c, the wire inserting end of the heating rod 6d is positioned outside the tail end of the screw 6, one part of the charging barrel 3, which is positioned at the tail end of the screw 6, is provided with a feeding port 3a penetrating through the barrel wall of the charging barrel 3, the hopper 2 is fixedly connected at the feeding port 3a position in the vertical direction, the two heating rings 5 are arranged, the two heating rings 5 are sleeved on the material cylinder 3, the two heating rings 5 are positioned at the front end part close to the screw 6, when plastic particles enter the material cylinder 3 from the hopper 2 through the material inlet 3a, the plastic particles can move to the front end of the screw 6 under the driving of the screw groove 6b through the rotation of the screw 6, the diameter of the rod body 6a of the screw 6 is gradually increased in the advancing process of the plastic particles, the space between the screw groove 6b and the material cylinder 3 is gradually reduced, the friction and extrusion between the screw 6 and the inner wall of the material cylinder 3 received by the plastic particles are increasingly large, the temperature of the plastic particles is increased to a certain degree due to the friction and extrusion, so that the plastic particles have a primary preheating process, when the plastic particles are conveyed to the front end part of the screw 6, heat is conveyed from the material cylinder 3 to the plastic particles through the heating rings 5 to melt the plastic particles, and a heating rod 6d is inserted in the middle of the screw rod 6, so that plastic particles close to the screw rod 6 can be heated and melted, and the problem that the plastic particles are not uniformly heated is solved.

Further, as shown in fig. 8:

the heating ring 5 comprises a first semicircular ring 5a, a second semicircular ring 5b, a circular rod 5c and a locking rod 5d, one end of the first plate semicircular ring is rotatably connected with one end of the second semicircular ring 5b, the outer wall of the first semicircular ring 5a is fixedly connected with a first flange 5a1, two ends of the first flange 5a1 are respectively rotatably connected with a pressure rod 5e, the other ends of the two pressure rods 5e are sleeved with a plastic handle 5f, the circular rod 5c penetrates through the middle parts of the two pressure rods 5e, the locking rod 5d is U-shaped, two ends of the locking rod 5d respectively penetrate through the circular rod 5c at two sides of the two pressure rods 5e, two ends of the locking rod 5d are locked on the circular rod 5c through a plurality of nuts, two hooks 5b1 symmetrically distributed along the first flange 5a1 are fixedly connected on the second semicircular ring 5b, and when the first semicircular ring 5a and the second semicircular ring 5b are locked, the lock lever 5d is hung on the two hooks 5b 1.

Based on the above-mentioned embodiments, the technical problem that the present application intends to solve is how to quickly detach and mount the heating ring 5. Therefore, the heating ring 5 is provided with a first semicircular ring 5a, a second semicircular ring 5b, a circular rod 5c and a locking rod 5d, one end of the first plate semicircular ring is rotatably connected with one end of the second semicircular ring 5b, the outer wall of the first semicircular ring 5a is fixedly connected with a first flange 5a1, two ends of the first flange 5a1 are respectively rotatably connected with a pressure lever 5e, the other ends of the two pressure levers 5e are sleeved with a plastic handle 5f, the circular rod 5c penetrates through the middle part of the two pressure levers 5e, the locking rod 5d is U-shaped, two ends of the locking rod 5d respectively penetrate through the circular rod 5c at two sides of the two pressure levers 5e, two ends of the locking rod 5d are locked on the circular rod 5c through a plurality of nuts, two hooks 5b1 symmetrically distributed along the first flange 5a1 are fixedly connected on the second semicircular ring 5b, and the first semicircular ring 5a and the second semicircular ring 5b are in a locking state, the locking rod 5d is hung on the two hooks 5b1, when the heating ring 5 is installed, the first semicircular ring 5a and the second semicircular ring 5b are firstly wrapped on the outer side of the charging barrel 3, the plastic handle 5f is held by a hand to hang the locking rod 5d on the two hooks 5b1, then the plastic handle 5f is pressed downwards to a certain degree, the locking rod 5d is tightly hung in the hook 5b1, so that the first semicircular ring 5a and the second semicircular ring 5b are locked, when the heating ring 5 needs to be disassembled, the plastic handle 5f is held by the hand to be pulled upwards forcibly, the locking rod 5d can be separated from the hook 5b1, and at the moment, the heating ring 5 can be easily disassembled.

Further, as shown in fig. 8:

a socket 5g is arranged on each of the first semicircular ring 5a and the second semicircular ring 5b, heating wires are uniformly distributed in the first semicircular ring 5a and the second semicircular ring 5b, and the heating wires are electrically connected with the socket 5 g.

Based on the above-described embodiment, the technical problem that the present application intends to solve is how to heat the heating ring 5. For this reason, this application is through all installing a socket 5g on first semicircle ring 5a and second semicircle ring 5b, and the inside evenly distributed of first semicircle ring 5a and second semicircle ring 5b has the heating wire, heating wire and socket 5g electric connection, insert can supply power to the heating wire in the socket 5g through introducing power plug to produce the heat.

Further, as shown in fig. 8:

the first semi-circular ring 5a and the second semi-circular ring 5b are both made of cast aluminum.

Based on above-mentioned embodiment, this application is through all establishing first semicircle ring 5a and second semicircle ring 5b to cast the aluminium material, can strengthen heating ring 5's heat conductivility to can be with the fine transmission of heat to in the feed cylinder 3.

Further, as shown in fig. 3-7:

the diameter of heating rod 6d is less than logical groove 6c diameter in the screw rod 6, and the both ends of heating rod all overlap and are equipped with a first bearing 6e, and slotted hole 6f that is used for holding first bearing 6e is all offered at the both ends of screw rod 6, at the fixed second support 7 that is provided with in one side of the wiring end of heating rod 6d, and second support 7 is close to the one end fixedly connected with dog 7a of heating rod 6 d.

Based on the above-mentioned embodiment, the technical problem that the present application intends to solve is how to prevent the screw 6 from rotating together with the heating rod 6d when rotating. For this reason, this application heating rod 6 d's diameter is less than logical groove 6c diameter in the threaded rod, the both ends of heating rod all overlap and are equipped with a first bearing 6e, slotted hole 6f that is used for holding first bearing 6e is all seted up at the both ends of screw rod 6, one side at heating rod 6 d's wiring end is fixed and is provided with second support 7, second support 7 is close to heating rod 6 d's one end fixedly connected with dog 7a, after heating rod 6d assembles to target in place, owing to there is first bearing 6 e's support, rotate through first bearing 6e between heating rod 6d and the screw rod 6 and be connected, heating rod 6d catches its wiring end through having dog 7a card, can guarantee when screw rod 6 rotates, heating rod 6d is still immobile, prevent heating rod 6 d's electric wire winding.

Further, as shown in fig. 5 and 6:

an end cap 6g is connected with the inner thread of a groove hole 6f at the front end of the screw rod 6, the top end of the end cap 6g is flush with the front end of the screw rod 6, and the bottom end of the end cap 6g abuts against a first bearing 6e at the bottom end of the groove hole 6 f.

Based on the above-mentioned embodiment, the technical problem that the present application intends to solve is that the melted plastic particles flow into the through-groove 6c through the slot 6 f. For this reason, this application is through being provided with end cap 6g, and end cap 6g threaded connection is in slotted hole 6f, and first bearing 6e is lived in the bottom butt of end cap 6g, has blockking of end cap 6g, both can be convenient for install first bearing 6e, also the effectual molten plastic pellet that prevents flows into in leading to groove 6 c.

Further, as shown in fig. 1, 2, and 11:

a protective cover 8 is arranged above the rack 1, the protective cover 8 is in a semicircular arc shape, and the protective cover 8 covers the two heating rings 5.

Based on above-mentioned embodiment, this application can prevent to staff's unexpected scald through setting up 8 covers on heating ring 5 of protection casing, still opens certain heat preservation effect and dustproof effect.

Further, as shown in fig. 1:

the frame 1 is fixedly provided with a man-machine interaction system 9, the upper end of the man-machine interaction system 9 is fixedly provided with an alarm lamp 9a, and the alarm lamp 9a is electrically connected with the man-machine interaction system 9.

Based on above-mentioned embodiment, this application is through the fixed man-machine interaction system 9 that is provided with in frame 1, and man-machine interaction system 9 upper end fixed mounting has alarm lamp 9a, and alarm lamp 9a and man-machine interaction system 9 electric connection can know the operating condition of heating ring 5 and heating rod 6d through man-machine interaction system 9, and alarm lamp 9a can send out the police dispatch newspaper when dangerous condition takes place for equipment.

Further, as shown in fig. 1, 5, 7, 9, and 12:

the end connection of screw rod 6 has rotation drive assembly 10, rotation drive assembly 10 includes gear box 10a, first gear 10b, second gear 10d and rotary actuator 10c, annular groove 6h has been seted up on the screw rod 6, the cover that first gear 10b fastens is established in annular groove 6h on the screw rod 6, second gear 10d and the meshing of first gear 10b, first gear 10b and second gear 10d are all in gear box 10a, the end of screw rod 6 runs through gear box 10a and continues outside extension, rotary actuator 10c and second gear 10d fastening connection.

Based on the above embodiments, in the present application, the rotation driving component 10 is connected to the end of the screw rod 6, the rotation driving component 10 includes a gear box 10a, a first gear 10b, a second gear 10d and a rotation driver 10c, the screw rod 6 is provided with a circular groove 6h, the first gear 10b is tightly sleeved in the circular groove 6h of the screw rod 6, the second gear 10d is engaged with the first gear 10b, the first gear 10b and the second gear 10d are both in the gear box 10a, the end of the screw rod 6 penetrates through the gear box 10a to continue to extend outwards, the rotation driver 10c is tightly connected with the second gear 10d, the second gear 10d and the first gear 10b are rotated by the rotation driver 10c, thereby drive screw rod 6 rotatory, make screw rod 6 rotate through the mode of gear engagement, can not influence the wiring of the heating rod 6d wiring end at the terminal of screw rod 6.

Further, as shown in fig. 1 and 12:

the middle of the rotary driving component 10 and the frame 1 is fixedly provided with a linear propulsion component 11 for driving the screw rod 6 to do linear motion, the linear propulsion component 11 is a double-screw rod sliding table mechanism, and the gear box 10a and the rotary driver 10c are both fixedly arranged on the sliding table.

Based on the above-mentioned embodiments, the technical problem that the present application intends to solve is how the screw 6 pushes the molten plastic particles in the barrel 3 out of the nozzle 4. For this reason, this application is through being provided with the sharp propulsion subassembly 11 that is used for driving screw 6 rectilinear motion in the middle of rotary drive subassembly 10 and frame 1 fixedly, and sharp propulsion subassembly 11 is two lead screw slip table mechanisms, and equal fixed mounting of gear box 10a and rotary actuator 10c is on the slip table, when the sharp propulsion subassembly 11 drove rotary drive subassembly 10 and moves, because first gear 10b and screw 6 fixed connection, so screw 6 also followed rotary drive subassembly 10 and moved.

Further, as shown in fig. 1 and 13:

still fixed mounting has rail guard 12 above frame 1 in hopper 2 department, and rail guard 12 includes footing 12a, bottom plate 12b and guardrail 12c, and footing 12a fixed mounting is on frame 1, and bottom plate 12b fixed mounting is in the top of footing 12a, offers the installing port that is used for installing hopper 2 on the bottom plate 12b, and guardrail 12c fixed connection is in the top of bottom plate 12b, and guardrail 12c encircles bottom plate 12b a week.

Based on the above embodiment, this application is through setting up rail guard 12, when needs are reinforced in hopper 2, the staff can stand on bottom plate 12b and make things convenient for the material loading, and rail guard 12c can prevent that the staff from falling.

The above examples, which are intended to represent only one or more embodiments of the present invention, are described in greater detail and with greater particularity, and are not to be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A novel injection molding machine screw rod heating device comprises a rack (1) and is characterized by further comprising a hopper (2), a charging barrel (3), a screw rod (6), a nozzle (4) and a heating ring (5) convenient to rapidly disassemble and install, wherein a first installation support (1a) and a support plate (1b) are fixedly installed on the rack (1), one end, close to the first installation support (1a), of the support plate (1b) is fixedly connected with a shaft sleeve end cover (1c), a second bearing (1b1) is installed on the support plate (1b), the second bearing (1b1) is coaxial with the shaft sleeve end cover (1c), the charging barrel (3) penetrates through the first installation support (1a) and the shaft sleeve end cover (1c) to be located above the rack (1) in a horizontal state, the nozzle (4) is in threaded connection with the front end of the charging barrel (3), the screw rod (6) penetrates through the second bearing (1b1) to be inserted into the charging barrel (3), screw rod (6) are including pole body (6a) and spiral shell groove (6b), the diameter of pole body (6a) increases along feed cylinder (3) axial direction gradually, spiral shell groove (6b) laminate with feed cylinder (3) all the time, logical groove (6c) that run through screw rod (6) are seted up along the axis direction in screw rod (6), it is equipped with heating rod (6d) to lead to groove (6c) interpolation, the plug wire end of heating rod (6d) is located the terminal outside of screw rod (6), pan feeding mouth (3a) that run through feed cylinder (3) section of thick bamboo wall are seted up in one department that feed cylinder (3) are located screw rod (6) end in feed hopper (2), fixed connection that hopper (2) are vertical direction is in pan feeding mouth (3a) department, heating ring (5) have two, and two heating ring (5) are all established on feed cylinder (3), two heating ring (5) all are located the preceding tip portion that is close to screw rod (6).

2. The novel screw heating device for the injection molding machine according to claim 1, wherein the heating ring (5) comprises a first semicircular ring (5a), a second semicircular ring (5b), a circular rod (5c) and a locking rod (5d), one end of the first plate semicircular ring is rotatably connected with one end of the second semicircular ring (5b), the outer wall of the first semicircular ring (5a) is fixedly connected with a first flange (5a1), two ends of the first flange (5a1) are respectively rotatably connected with a pressure rod (5e), the other end of the two pressure rods (5e) is sleeved with a plastic handle (5f), the circular rod (5c) penetrates through the middle part of the two pressure rods (5e), the locking rod (5d) is U-shaped, two ends of the locking rod (5d) respectively penetrate through the circular rod (5c) at two sides of the two pressure rods (5e), two ends of the locking rod (5d) are locked on the circular rod (5c) through a plurality of nuts, two hooks (5b1) which are symmetrically distributed along the first flange (5a1) are fixedly connected to the second semicircular ring (5b), and when the first semicircular ring (5a) and the second semicircular ring (5b) are in a locking state, the locking rod (5d) is hung on the two hooks (5b 1).

3. The novel screw heating device for the injection molding machine according to claim 2, wherein the first semicircular ring (5a) and the second semicircular ring (5b) are respectively provided with a socket (5g), and electric heating wires are uniformly distributed in the first semicircular ring (5a) and the second semicircular ring (5b) and electrically connected with the sockets (5 g).

4. A novel screw heating device for injection molding machines according to claim 3, characterized in that the first semicircular ring (5a) and the second semicircular ring (5b) are made of cast aluminum.

5. The novel heating device for the screw of the injection molding machine according to claim 1, wherein the diameter of the heating rod (6d) is smaller than that of the through groove (6c) in the screw (6), the two ends of the heating rod are respectively sleeved with a first bearing (6e), the two ends of the screw (6) are respectively provided with a groove hole (6f) for accommodating the first bearing (6e), a second support (7) is fixedly arranged on one side of the wiring end of the heating rod (6d), and one end of the second support (7) close to the heating rod (6d) is fixedly connected with a stop block (7 a).

6. A novel heating device for the screw of an injection molding machine according to claim 5, characterized in that an end cap (6g) is connected with the inner thread of the slotted hole (6f) at the front end of the screw (6), the top end of the end cap (6g) is flush with the front end of the screw (6), and the bottom end of the end cap (6g) abuts against the first bearing (6e) at the bottom end of the slotted hole (6 f).

7. A novel screw heating device for injection molding machines according to claim 1, characterized in that a protective cover (8) is placed above the frame (1), the protective cover (8) is in the shape of a semi-circular arc, and the protective cover (8) covers the two heating rings (5).

8. The novel heating device for the screw of the injection molding machine according to claim 1, wherein the rack (1) is fixedly provided with a human-computer interaction system (9), the upper end of the human-computer interaction system (9) is fixedly provided with a warning lamp (9a), and the warning lamp (9a) is electrically connected with the human-computer interaction system (9).

9. The novel screw heating device for the injection molding machine according to claim 1, wherein a rotary driving component (10) is connected to the end of the screw (6), the rotary driving component (10) comprises a gear box (10a), a first gear (10b), a second gear (10d) and a rotary driver (10c), a ring groove (6h) is formed in the screw (6), the first gear (10b) is tightly sleeved in the ring groove (6h) in the screw (6), the second gear (10d) is meshed with the first gear (10b), the first gear (10b) and the second gear (10d) are both fixedly arranged in the gear box (10a), the end of the screw (6) penetrates through the gear box (10a) and continues to extend outwards, and the rotary driver (10c) is in transmission connection with the second gear (10 d).

10. The novel screw heating device for the injection molding machine according to claim 9, wherein a linear propulsion assembly (11) for driving the screw (6) to move linearly is fixedly arranged between the rotary driving assembly (10) and the frame (1), the linear propulsion assembly (11) is of a double-screw sliding table structure, and the gear box (10a) and the rotary driver (10c) are both fixedly arranged on the sliding table.