CN212736901U

CN212736901U - Heater of hot runner

Info

Publication number: CN212736901U
Application number: CN202021150803.2U
Authority: CN
Inventors: 邓芳
Original assignee: Shenzhen Maisite Die Fitting Co ltd
Current assignee: Shenzhen Maisite Die Fitting Co ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-03-19
Anticipated expiration: 2030-06-19

Abstract

The utility model relates to a hot runner technical field especially relates to a heater of hot runner, has solved prior art hot runner and has not preheating device, and easy making material melting inhomogeneous, the melting is not abundant, has certain difference in temperature when not having preheating device material to get into the hot runner moreover, harms the problem of mould easily. The utility model provides a heater of hot runner, includes the base, and the top of base is provided with the runner, and runner outer wall cover is equipped with the spring heating circle, and the both ends of spring heating circle have all cup jointed the ring, and the equal fixedly connected with a plurality of tooth piece of outer wall of two rings, and the center department at base top is through bolt fixedly connected with driving motor, and driving motor's output shaft transmission is connected with bevel gear, and driving motor's top is provided with the connecting axle. The utility model discloses can be even heat the runner to preheat the material, make the more even and abundant of material melting, avoid the temperature difference harm mould that exists.

Description

Heater of hot runner

Technical Field

The utility model relates to a hot runner technical field especially relates to a heater of hot runner.

Background

The hot runner ensures that the plastic of the runner and the sprue is kept in a molten state by a heating method. The whole runner from the nozzle outlet of the injection molding machine to the sprue is in a high-temperature state, so that the plastic in the runner is kept molten, the runner is not required to be opened to take out the solidified material after the machine is stopped, and the runner is only required to be heated to the required temperature when the machine is started again. Therefore, a heater is required to maintain the temperature of the flow passage.

In the existing heating mode of the hot runner, a heating rod and a heating ring are generally arranged near or at the center of the hot runner.

However, the existing hot runner has no preheating device, so that the melting of materials is not uniform and insufficient, and a certain temperature difference exists when the materials without the preheating device enter the hot runner, so that the mold is easily damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a heater of hot runner has solved current hot runner among the prior art and has not had preheating device, and easy making material melting inhomogeneous, the melting is insufficient, has certain difference in temperature when not having preheating device material to get into the hot runner moreover, harms the problem of mould easily.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a heater of hot runner, the on-line screen storage device comprises a base, the top of base is provided with the runner, runner outer wall cover is equipped with the spring heating circle, and the ring has all been cup jointed at the both ends of spring heating circle, the equal fixedly connected with a plurality of tooth piece of outer wall of two rings, and the interval equals between every two adjacent tooth pieces, the center department at base top is through bolt fixedly connected with driving motor, driving motor's output shaft transmission is connected with bevel gear, driving motor's top is provided with the connecting axle, the second gear that the cooperation bevel gear used has been cup jointed at the middle part of connecting axle, the both ends setting of connecting axle all is provided with the square box, and the both ends of connecting axle all run through the table wall of square box through the bearing housing, and the equal fixedly connected with telescopic link of extension end at connecting axle.

Preferably, the outer wall of the spring heating ring is sleeved with a heat preservation pipe.

Preferably, the spring heating ring is in clearance fit with the heat preservation pipe.

Preferably, the two sides of the top of the base are fixedly connected with supporting rods, and one ends of the two supporting rods are fixedly connected with the bottoms of the two square boxes respectively.

Preferably, one end of the spring heating ring is elastically connected with a handle.

Preferably, the spring heating ring is in clearance fit with the flow channel.

The utility model discloses possess following beneficial effect at least:

starting a driving motor, driving a second gear to rotate through a bevel gear, driving a connecting shaft and a telescopic rod to rotate through the rotation of the second gear, driving two first gears to rotate, and driving a spring heating ring to rotate through a circular ring and a tooth block; this structure is through letting the spring heating circle rotate, and the convection current way that can be even heats to preheat the material, make the material fused more even and abundant, avoid the temperature difference harm mould that exists.

The utility model discloses still have following beneficial effect:

by arranging the heat preservation pipe, the heat of the spring heating ring can be effectively prevented from being dissipated too fast, and the heat is locked; the handle is arranged, the spring heating ring can be stretched, the size of a heating space is adjusted, the local temperature of the temperature is changed, and the better adaptive flow channel works.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a side view of the ring of the present invention;

fig. 3 is a top view of the middle connecting shaft of the present invention.

In the figure: 1. a base; 2. a support bar; 3. a drive motor; 4. a first gear; 5. a telescopic rod; 6. a tooth block; 7. a flow channel; 8. a circular ring; 9. a spring heating coil; 10. a heat preservation pipe; 11. a second gear; 12. a connecting shaft; 13. a square box; 14. a bevel gear; 15. a handle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-3, a heater of a hot runner, including a base 1, a flow channel 7 is arranged on the top of the base 1, a spring heating ring 9 is sleeved on the outer wall of the flow channel 7, rings 8 are sleeved on both ends of the spring heating ring 9, a plurality of tooth blocks 6 are fixedly connected on the outer walls of the two rings 8, the distance between every two adjacent tooth blocks 6 is equal, a driving motor 3 is fixedly connected at the center of the top of the base 1 through bolts, a bevel gear 14 is connected on the output shaft of the driving motor 3 in a transmission manner, a connecting shaft 12 is arranged on the top of the driving motor 3, a second gear 11 used in cooperation with the bevel gear 14 is sleeved on the middle of the connecting shaft 12, square boxes 13 are arranged on both ends of the connecting shaft 12, both ends of the connecting shaft 12 penetrate through the surface wall of the square boxes 13 through bearing sleeves, and extension ends of both, the one end of two telescopic links 5 has all cup jointed the first gear 4 that the cooperation a plurality of tooth piece 6 used, it is concrete, through driving motor 3, bevel gear 14, first gear 4, second gear 11, connecting axle 12, telescopic link 5, ring 8, cooperation between tooth piece 6 and the spring heating circle 9, let spring heating circle 9 rotate, can be even heat runner 7, thereby preheat the material, make the material fused more even and abundant, the temperature difference of avoiding existence harms the mould.

The scheme has the following working processes:

the driving motor 3 is started, the bevel gear 14 drives the second gear 11 to rotate, the second gear 11 rotates to drive the connecting shaft 12 and the telescopic rod 5 to rotate, then the two first gears 4 are driven to rotate, and the two first gears 4 drive the spring heating ring 9 to rotate through the circular ring 8 and the tooth block 6.

According to the working process, the following steps are known:

through the cooperation between driving motor 3, bevel gear 14, first gear 4, second gear 11, connecting axle 12, telescopic link 5, ring 8, tooth piece 6 and spring heating circle 9, let spring heating circle 9 rotate, can be even heat runner 7 to preheat the material, make the material fused more even and abundant, avoid the temperature difference harm mould that exists.

Further, the outer wall cover of spring heating circle 9 is equipped with insulating tube 10, and is concrete, sets up insulating tube 10 and can prevent that the heat that spring heating circle 9 from giving off too fast.

Furthermore, the spring heating ring 9 is in clearance fit with the heat preservation pipe 10, so that the spring heating ring 9 can be better stretched.

Further, the equal fixedly connected with bracing piece 2 in both sides at base 1 top, and the one end of two bracing pieces 2 respectively with two square box 13 between the bottom fixed connection, concrete, set up bracing piece 2, stabilize overall structure, prevent to empty.

Further, one end elastic connection of spring heating circle 9 has handle 15, and is concrete, sets up handle 15 and is convenient for stretch spring heating circle 9 to this size of adjusting the heating space.

Further, clearance fit is adopted between the spring heating ring 9 and the flow channel 7, and particularly, the spring heating ring 9 is convenient to heat the flow channel 7.

In conclusion, the arrangement of the heat preservation pipe 10 can prevent the heat of the spring heating ring 9 from being dissipated too fast; the supporting rod 2 is arranged to stabilize the whole structure and prevent toppling; the handle 15 is provided to facilitate the stretching of the spring heating coil 9, thereby adjusting the size of the heating space.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A heater of a hot runner comprises a base (1) and is characterized in that a runner (7) is arranged at the top of the base (1), a spring heating ring (9) is sleeved on the outer wall of the runner (7), rings (8) are sleeved at two ends of the spring heating ring (9), a plurality of tooth blocks (6) are fixedly connected to the outer walls of the two rings (8), the distance between every two adjacent tooth blocks (6) is equal, a driving motor (3) is fixedly connected to the center of the top of the base (1) through bolts, a bevel gear (14) is connected to an output shaft of the driving motor (3) in a transmission manner, a connecting shaft (12) is arranged at the top of the driving motor (3), a second gear (11) matched with the bevel gear (14) for use is sleeved at the middle part of the connecting shaft (12), square boxes (13) are arranged at two ends of the connecting shaft (12), and the both ends of connecting axle (12) all run through the table wall of square box (13) through the bearing housing to the equal fixedly connected with telescopic link (5) of extension end at connecting axle (12) both ends, first gear (4) that the cooperation a plurality of tooth piece (6) used are all cup jointed to the one end of two telescopic links (5).

2. Hot runner heater according to claim 1, wherein the outer wall of the spring heating ring (9) is sheathed with a thermal insulation tube (10).

3. Hot runner heater according to claim 2, wherein the spring heating ring (9) is a clearance fit with the holding tube (10).

4. The heater of the hot runner according to claim 1, wherein the supporting rods (2) are fixedly connected to both sides of the top of the base (1), and one ends of the two supporting rods (2) are fixedly connected to the bottoms of the two square boxes (13).

5. Hot runner heater according to claim 1, wherein a handle (15) is resiliently connected to one end of the spring heating coil (9).

6. Hot runner heater according to claim 1, wherein the spring heating ring (9) is a clearance fit with the flow channel (7).