Adjustable hot runner hot nozzle

Abstract

The utility model discloses an adjustable hot runner hot nozzle, which relates to the technical field of mold auxiliary devices, and comprises an injection port seat, a telescopic adjusting mechanism, a hot runner hot nozzle and a hot runner hot nozzle, the telescopic adjusting mechanism comprises an injection nozzle inserting piece, the injection nozzle inserting piece is arranged at the bottom end of an injection port seat in a sleeving mode, a first sliding groove is formed in the injection port seat, the inner wall of the first sliding groove is sleeved with a movable shell and a first spring, an injection port heater is arranged outside the movable shell, an anti-overflow sleeve is installed on the inner wall of the injection nozzle inserting piece, and the first spring is connected with the anti-overflow sleeve in a sleeving mode. A plurality of sets of clamping grooves are formed in the movable shell, a second sliding groove is formed between every two adjacent sets of clamping grooves, and a notch is formed in the sprue base. The movable shell and the injection nozzle inserting piece are positioned through cooperation of the limiting plate and the clamping groove, the length between the injection nozzle inserting piece and the injection nozzle base is conveniently controlled, and therefore the overall length of the whole hot nozzle is controlled.

Description

Technical Field

[0001] This utility model relates to the field of mold auxiliary device technology, specifically an adjustable hot runner nozzle. Background Technology

[0002] Hot runner nozzles keep the plastic in the runner and gate in a molten state by heating, so that the runner and gate do not need to be removed during the injection molding process. They are heating components in injection molds used to inject molten plastic particles into the mold cavity, which helps to improve production efficiency, reduce costs and improve product quality.

[0003] When using injection molds, hot runner nozzles are required. However, existing hot runner nozzles use a fixed design. Since the length and position of the hot runner nozzles required for different products are different when using different molds, different nozzles need to be customized for different mold products. Therefore, an adjustable hot runner nozzle is proposed. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an adjustable hot runner nozzle.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable hot runner nozzle, including a nozzle seat, wherein a filling hole is provided in the middle of the nozzle seat, and further comprising:

[0006] The telescopic adjustment mechanism, which is set on the inlet seat, is used to control the length of the heat-conducting hot nozzle;

[0007] The telescopic adjustment mechanism includes a nozzle insert, which is fitted onto the bottom end of the inlet. The inlet seat has a first sliding groove inside, and a movable shell and a first spring are fitted onto the inner wall of the first sliding groove. An inlet heater is provided on the outside of the movable shell. An anti-overflow sleeve is installed on the inner wall of the nozzle insert. The movable shell has several sets of slots inside, and a second sliding groove is provided between two adjacent sets of slots. The inlet seat has a slot inside, and a second spring and a movable plate are fitted onto the inside of the slot. A connecting shaft is installed on one side of the movable plate, and a limit plate is connected to the outer surface of the connecting shaft.

[0008] As described above, the first spring is elastically supported between the first slide groove and the movable shell, the movable shell covers the outer surface of the inlet seat and the nozzle insert, the movable shell is fixed to the nozzle insert, and the movable shell is slidably connected to the inlet seat.

[0009] As mentioned above, the width of the second groove is greater than or equal to the diameter of the connecting shaft, which passes through the groove and extends to the outside of the movable housing.

[0010] As mentioned above, the second spring is elastically supported between the slot and the movable plate, and the movable shell is made of a thermally conductive material.

[0011] As described above, the anti-overflow sleeve is fitted into the injection hole, and the inner side of the top end of the anti-overflow sleeve is provided with a chamfer.

[0012] As described above, the limiting plate is movably engaged with the slot, and when the movable plate moves along the inner side of the slot, the limiting plate can retract to the inner side of the injection port seat and separate from the slot.

[0013] Compared with existing technologies, this adjustable hot runner nozzle has the following advantages:

[0014] I. This utility model, through the cooperation between the movable shell and the first sliding groove, allows the movable shell to move along the inner side of the first sliding groove. At the same time, through the cooperation between the nozzle insert and the inlet seat, the movable shell can drive the nozzle insert to move telescopically along the bottom of the inlet seat. At this time, through the elastic force of the second spring, the movable plate will drive the connecting shaft to move, and the connecting shaft can drive the limiting plate to move. In this way, the movable shell and the nozzle insert can be positioned through the cooperation between the limiting plate and the slot, which facilitates the control of the length between the nozzle insert and the inlet seat, thereby controlling the overall length of the hot nozzle.

[0015] Second, this utility model, through the cooperation between the inlet heater and the movable shell, enables the inlet heater to move synchronously when the movable shell moves. At the same time, through the cooperation between the movable shell and the nozzle insert, the inlet heater will move synchronously when the nozzle insert moves. Furthermore, since the movable shell is made of thermally conductive material, the original heating effect is ensured when the nozzle insert extends and retracts.

[0016] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0019] Figure 3 This is a cross-sectional view of the front of the present invention;

[0020] Figure 4 This utility model Figure 3 A magnified structural diagram at point B in the middle.

[0021] In the diagram: 1. Injection port seat; 2. Injection nozzle insert; 3. Movable shell; 4. Injection port heater; 5. Injection hole; 6. Anti-overflow sleeve; 7. First slide groove; 8. First spring; 9. Locking groove; 10. Second slide groove; 11. Groove opening; 12. Second spring; 13. Movable plate; 14. Connecting shaft; 15. Limiting plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1-4 As shown, this utility model provides an adjustable hot runner nozzle technical solution: an adjustable hot runner nozzle includes a nozzle seat 1, with a nozzle hole 5 in the middle of the nozzle seat 1, and further includes:

[0024] The telescopic adjustment mechanism, which is set on the inlet seat 1, is used to control the length of the heat conduction nozzle;

[0025] The telescopic adjustment mechanism includes a nozzle insert 2, which is sleeved on the bottom end of the nozzle seat 1. The nozzle seat 1 has a first sliding groove 7 inside. The inner wall of the first sliding groove 7 is fitted with a movable shell 3 and a first spring 8. The outer side of the movable shell 3 is provided with a nozzle heater 4. The inner wall of the nozzle insert 2 is installed with an anti-overflow sleeve 6. The movable shell 3 has several sets of slots 9 inside. A second sliding groove 10 is provided between two adjacent sets of slots 9. The nozzle seat 1 has a slot 11 inside. The slot 11 is fitted with a second spring 12 and a movable plate 13. A connecting shaft 14 is installed on one side of the movable plate 13. A limit plate 15 is connected to the outer surface of the connecting shaft 14.

[0026] The movable shell 3 and the first slide groove 7 cooperate to allow the movable shell 3 to move along the inner side of the first slide groove 7. At the same time, the nozzle insert 2 and the inlet seat 1 cooperate to allow the movable shell 3 to drive the nozzle insert 2 to move telescopically along the bottom of the inlet seat 1. At this time, the elastic force of the second spring 12 will drive the connecting shaft 14 to move through the movable plate 13. The connecting shaft 14 can drive the limiting plate 15 to move. Thus, the movable shell 3 and the nozzle insert 2 can be positioned by the cooperation between the limiting plate 15 and the slot 9, which makes it easier to control the length between the nozzle insert 2 and the inlet seat 1, thereby controlling the overall length of the hot nozzle.

[0027] like Figure 3As shown, the first spring 8 is elastically supported between the first slide groove 7 and the movable shell 3. The movable shell 3 covers the outer surface of the injection port seat 1 and the injection nozzle plug 2. The movable shell 3 is fixed to the injection nozzle plug 2 and is slidably connected to the injection port seat 1.

[0028] The design of the first spring 8 enables the movable shell 3 to have good elastic reset performance. Since the first spring 8 is in a compressed state, it will apply an elastic force to the movable shell 3. When the movable shell 3 is in contact with the limit, the movable shell 3 can drive the nozzle plug 2 to move upward and control the nozzle plug 2 to reset.

[0029] like Figure 2 As shown, the width of the second groove 10 is greater than or equal to the diameter of the connecting shaft 14, which passes through the groove 11 and extends to the outside of the movable shell 3.

[0030] With the design of the second slide groove 10, since the width of the second slide groove 10 is greater than or equal to the diameter of the connecting shaft 14, the connecting shaft 14 can pass through the second slide groove 10 when the movable shell 3 moves up and down, thereby avoiding the connecting shaft 14 from affecting the up and down movement of the movable shell 3.

[0031] like Figure 4 As shown, the second spring 12 is elastically supported between the slot 11 and the movable plate 13, and the movable shell 3 is made of a heat-conducting material.

[0032] The design of the second spring 12 enables the movable plate 13 to have good elastic reset performance. Since the second spring 12 is in a compressed state, it will apply an elastic force to the movable plate 13, which can drive the limiting plate 15 to engage with the slot 9 through the connecting shaft 14.

[0033] like Figure 3 As shown, the anti-overflow sleeve 6 is sleeved with the injection hole 5, and the inner side of the top of the anti-overflow sleeve 6 is chamfered.

[0034] The cooperation between the anti-overflow sleeve 6 and the injection hole 5 allows the plastic solution passing through the injection hole 5 to pass through the anti-overflow sleeve 6. The chamfer on the top of the anti-overflow sleeve 6 prevents the solution from accumulating on the top of the anti-overflow sleeve 6. The cooperation between the anti-overflow sleeve 6 and the injection hole 5 also prevents the plastic solution from leaking out when the nozzle insert 2 moves back and forth.

[0035] like Figure 4 As shown, the limiting plate 15 is movably engaged with the slot 9. When the movable plate 13 moves along the inner side of the slot 11, the limiting plate 15 can retract to the inner side of the injection port seat 1 and separate from the slot 9.

[0036] The movable plate 13 can move along the inner wall of the slot 11 through the cooperation between the movable plate 13 and the slot 11. The movable plate 13 can drive the connecting shaft 14 and the limiting plate 15 to move, and the movable shell 3 can be limited by the cooperation between the limiting plate 15 and the slot 9.

[0037] Working principle:

[0038] When the height of the hot runner nozzle needs to be adjusted, the operator can press the connecting shaft 14 to separate the limiting plate 15 from the slot 9. At the same time, through the cooperation between the movable shell 3 and the first slide groove 7, the movable shell 3 can move along the inner side of the first slide groove 7. The movable shell 3 drives the nozzle insert 2 to move telescopically along the bottom of the inlet seat 1. At this time, through the elastic force of the second spring 12, the connecting shaft 14 will be moved through the movable plate 13. At the same time, the connecting shaft 14 can drive the limiting plate 15 to engage with the slot 9, thereby positioning the movable shell 3 and the nozzle insert 2. This makes it easier to control the length between the nozzle insert 2 and the inlet seat 1, thus adjusting the overall length of the hot runner.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable hot runner nozzle, comprising a nozzle seat (1), wherein a nozzle hole (5) is provided in the middle of the nozzle seat (1), characterized in that, Also includes: The telescopic adjustment mechanism is set on the inlet seat (1) and is used to control the length of the heat conduction nozzle; The telescopic adjustment mechanism includes a nozzle insert (2), which is sleeved on the bottom end of the nozzle seat (1). The nozzle seat (1) has a first sliding groove (7) inside. The inner wall of the first sliding groove (7) is fitted with a movable shell (3) and a first spring (8). The outer side of the movable shell (3) is provided with a nozzle heater (4). The inner wall of the nozzle insert (2) is installed with an anti-overflow sleeve (6). The movable shell (3) has several sets of slots (9) inside. A second sliding groove (10) is provided between two adjacent sets of slots (9). The nozzle seat (1) has a slot (11) inside. The slot (11) is fitted with a second spring (12) and a movable plate (13). A connecting shaft (14) is installed on one side of the movable plate (13). A limit plate (15) is connected to the outer surface of the connecting shaft (14).

2. The adjustable hot runner nozzle according to claim 1, characterized in that: The first spring (8) is elastically supported between the first slide groove (7) and the movable shell (3). The movable shell (3) covers the outer surface of the injection port seat (1) and the injection nozzle insert (2). The movable shell (3) is fixed to the injection nozzle insert (2) and is slidably connected to the injection port seat (1).

3. An adjustable hot runner nozzle according to claim 1, characterized in that: The width of the second groove (10) is greater than or equal to the diameter of the connecting shaft (14), which passes through the slot (11) and extends to the outside of the movable shell (3).

4. An adjustable hot runner nozzle according to claim 1, characterized in that: The second spring (12) is elastically supported between the slot (11) and the movable plate (13), and the movable shell (3) is made of a heat-conducting material.

5. An adjustable hot runner nozzle according to claim 1, characterized in that: The anti-overflow sleeve (6) is sleeved with the injection hole (5), and the inner side of the top end of the anti-overflow sleeve (6) is chamfered.

6. An adjustable hot runner nozzle according to claim 1, characterized in that: The limiting plate (15) is movably engaged with the slot (9). When the movable plate (13) moves along the inner side of the slot (11), the limiting plate (15) can retract to the inner side of the injection port seat (1) and separate from the slot (9).

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