Small hot nozzle device

Abstract

The utility model discloses a small hot nozzle device which comprises a hot nozzle body, a connecting plate is fixedly installed at the upper end of the hot nozzle body, and decorative stripes are installed on the outer side of the connecting plate at equal angles. The flow channels are formed in the inner side of the connecting plate at equal angles, and valve needles penetrate through the inner sides of the flow channels; and the heating assembly is arranged on the inner side of the hot nozzle body. According to the small hot nozzle device, the temperature of the valve needle is sensed through the temperature sensor, when it is sensed that the temperature of the valve needle is too low, sensed information is transmitted to the control module, the control module controls the heating pipe to operate to heat the valve needle on the inner side, and materials on the inner side of the valve needle are conveyed to the storage cavity after being heated and sprayed out through the nozzle head at the bottom of the storage cavity; the heating pipes are distributed on the outer side of the cover body at equal angles, the intervals between the heating pipes are small, heat is easily concentrated, the heating pipes completely wrap the valve needle, the heating area of the valve needle is uniform, the heating effect is good, the temperature of materials on the inner side of the valve needle can be remarkably increased, and the rapid heating effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding technology field, concretely to a small -size hot nozzle device. BACKGROUND

[0002] Small -size hot nozzle device is one of the key components in injection mold, and plays an important role in the precise control hot runner and molten plastic injection.

[0003] The utility model discloses a hot nozzle, including hot nozzle body, heating element and temperature sensing element, be equipped with a plurality of flow channels in hot nozzle body, flow channel penetrates hot nozzle body, and a plurality of flow channels are arranged in a row along the direction perpendicular to the penetration direction of flow channel, heating element is arranged on hot nozzle body and is used to generate heat, temperature sensing element is arranged on hot nozzle body and is used to measure the temperature of hot nozzle body or heating element, the utility model technical scheme can adapt to the position distribution of cavity, and the spacing between any two adjacent flow channels is reduced, thereby the spacing between two adjacent gates is reduced, meet some special small -pitch injection demand, reduce the influence of hot nozzle body on the spacing of any two adjacent flow channels.

[0004] The device distributes flow channels in an array inside the hot nozzle body, so that the molten material inside the flow channels is heated by the heating assembly. However, this heating method not only causes uneven heat distribution and slow heating speed of the molten material, but also can only heat one side or both sides of the flow channel during heating, resulting in uneven heating of the molten material and affecting the use effect of the molten material.

[0005] In view of the above problems, it is urgent to make innovative design on the basis of the original small -size hot nozzle device structure. UTILITY MODEL CONTENTS

[0006] The utility model discloses a small -size hot nozzle device to solve the problem of uneven heating of the molten material and the use effect of the molten material caused by the uneven heat distribution and slow heating speed of the molten material.

[0007] To achieve the above object, the utility model provides the following technical scheme: a small -size hot nozzle device, including hot nozzle body, the fixed mounting of connecting plate is installed on the upper end of hot nozzle body, and the equal angle installation of decorative stripe is arranged outside connecting plate, flow channel, the equal angle of flow channel is arranged in the inside of connecting plate, and the valve needle is penetrated in the inside of flow channel, still include: heating assembly, heating assembly sets up in the inside of hot nozzle body, and heating assembly is connected with valve needle, nozzle head, nozzle head installs hot nozzle body bottom, replacement component, replacement component sets up between hot nozzle body and nozzle head, wherein, heating assembly is used for heating valve needle, and replacement component is used for replacing nozzle head.

[0008] Preferably, the heating assembly comprises a heating cavity, a storage cavity and a partition plate, the heating cavity is arranged in the inside of the hot nozzle body, the storage cavity is arranged in the inside of the hot nozzle body, and the partition plate is arranged between the heating cavity and the storage cavity.

[0009] Preferably, the heating assembly further comprises a cover, a battery and a heating pipe, the cover is fixedly installed on the upper end of the partition plate, the battery is fixedly installed in the inside of the cover, and the heating pipe is installed at equal angles on the outside of the cover, and the valve needle penetrates through the inside of the heating pipe.

[0010] Preferably, the heating assembly further comprises a control module and a temperature sensor, the control module is fixedly installed on the outside of the cover and electrically connected with the heating pipe, and the temperature sensor is fixedly installed on the outside of the cover and correspondingly distributed on the left and right sides of the valve needle.

[0011] Preferably, the replacement assembly comprises a threaded groove, and the threaded groove is fixedly installed on the bottom of the hot nozzle body.

[0012] Preferably, the replacement assembly further comprises a pasting plate, and the pasting plate is fixedly installed on the outside of the nozzle head and has the same diameter as the threaded groove.

[0013] Preferably, the replacement assembly further comprises a threaded sleeve, a through groove and a clamping groove, the threaded sleeve is threadedly connected on the outside of the threaded groove, the through groove is arranged in the inside of the threaded sleeve, and the clamping groove is arranged on the outside of the threaded sleeve.

[0014] Preferably, the replacement assembly further comprises a fixed plate, an extension spring and a clamping rod, the fixed plate is fixedly installed on the bottom of the hot nozzle body, the clamping rod penetrates through the inside of the fixed plate, the extension spring is connected with the fixed plate and the clamping rod at two ends, and the tail end of the clamping rod is clamped and connected in the inside of the clamping groove.

[0015] Compared with the prior art, the small hot nozzle device has the following beneficial effects:

[0016] 1. The structure has good heating effect, when the temperature of the valve needle is too low, the temperature sensor senses the temperature of the valve needle and transmits the sensed information to the control module, the control module controls the heating pipe to heat the inside of the valve needle, the material in the inside of the valve needle is heated and then conveyed to the storage cavity and sprayed out through the nozzle head at the bottom of the storage cavity, the heating pipes are distributed at equal angles on the outside of the cover, the interval between the heating pipes is small, heat is easily concentrated, the heating pipe completely wraps the valve needle, the heating area of the valve needle is uniform, the heating effect is good, the temperature of the material in the inside of the valve needle can be significantly improved, and the effect of rapid heating is achieved.

[0017] 2. The quick dismounting structure of the nozzle head, when the nozzle head needs to be replaced or repaired due to blockage, the clamping rod is manually pulled outward, so that the tail end of the clamping rod is separated from the clamping groove, and then the threaded sleeve is rotated in reverse, and the threaded sleeve is taken out from the outside of the threaded groove, so that the nozzle head can be taken off and replaced;

[0018] Further, when the replaced nozzle head is placed inside the threaded groove, the threaded sleeve is rotated in the forward direction, and the threaded sleeve is connected with the threaded groove through the threaded connection, so that the nozzle head inside the threaded groove is fixed, after the fixing is completed, the clamping rod is loosened, and the clamping rod is reset through the elastic force of the extension spring, so that the tail end of the clamping rod is clamped with the clamping groove, and the tail end of the clamping rod is clamped with the clamping groove, so that the threaded sleeve is prevented from rotating by itself, the connection stability of the threaded sleeve and the threaded groove is increased, and the threaded sleeve is prevented from rotating by itself, so that the nozzle head inside the threaded groove is loosened. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;

[0020] Figure 2 It is a whole bottom view structure schematic view of the utility model;

[0021] Figure 3 It is a hot nozzle body horizontal section view structure schematic view of the utility model;

[0022] Figure 4 It is a hot nozzle body vertical section view structure schematic view of the utility model;

[0023] Figure 5 It is a three-dimensional structure schematic view of the replacement assembly of the utility model;

[0024] Figure 6 It is a three-dimensional structure schematic view of the replacement assembly of the utility model; Figure 2 It is an enlarged structure schematic view of A in the utility model.

[0025] In the drawing: 1, hot nozzle body; 2, connecting plate; 3, decorative stripe; 4, flow channel; 5, valve needle; 6, heating assembly; 601, heating cavity; 602, storage cavity; 603, partition; 604, cover body; 605, storage battery; 606, heating pipe; 607, control module; 608, temperature sensor; 7, nozzle head; 8, replacement assembly; 801, threaded groove; 802, pasting plate; 803, threaded sleeve; 804, through groove; 805, clamping groove; 806, fixed plate; 807, extension spring; 808, clamping rod. DETAILED DESCRIPTION

[0026] 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.

[0027] Please see Figures 1-6 This utility model provides a technical solution: a small hot nozzle device, comprising:

[0028] Example 1: As Figures 1-4 The present invention provides a technical solution: a small hot nozzle device, comprising: a hot nozzle body 1, a connecting plate 2 fixedly mounted on the upper end of the hot nozzle body 1, and decorative stripes 3 installed at equal angles on the outer side of the connecting plate 2; a flow channel 4, which is opened at equal angles on the inner side of the connecting plate 2, and a valve needle 5 passing through the inner side of the flow channel 4; further comprising: a heating component 6, which is disposed on the inner side of the hot nozzle body 1 and connected to the valve needle 5; a nozzle 7, which is installed at the bottom of the hot nozzle body 1; and a replacement component 8, which is disposed between the hot nozzle body 1 and the nozzle 7; wherein, the heating component 6 is used to heat the valve needle 5; and the replacement component 8 is used to replace the nozzle 7;

[0029] The heating assembly 6 includes a heating chamber 601, a storage chamber 602, and a partition 603. The heating chamber 601 is located inside the hot nozzle body 1, and the storage chamber 602 is located inside the hot nozzle body 1. A partition 603 is provided between the storage chamber 602 and the heating chamber 601. The heating assembly 6 also includes a cover 604, a battery 605, and a heating tube 606. The cover 604 is fixedly installed on the upper end of the partition 603, and the battery 605 is fixedly installed inside the cover 604. The heating tube 606 is installed at equal angles on the outside of the cover 604, and a valve needle 5 passes through the inside of the heating tube 606. The heating assembly 6 also includes a control module 607 and a temperature sensor 608. The control module 607 is fixedly installed on the outside of the cover 604 and is electrically connected to the heating tube 606. The temperature sensor 608 is fixedly installed on the outside of the cover 604, and the temperature sensor 608 and the valve needle 5 are distributed in a left-right correspondence.

[0030] This structure uses a temperature sensor 608 to sense the temperature of the valve needle 5. When the temperature of the valve needle 5 is too low, the sensor transmits the information to the control module 607. The control module 607 controls the heating tube 606 to heat the inner valve needle 5. The heated material inside the valve needle 5 is then transported to the storage chamber 602 and ejected through the nozzle 7 at the bottom of the storage chamber 602. The heating tubes 606 are evenly distributed on the outside of the cover 604 with small intervals between them, which makes it easy to concentrate heat. The heating tubes 606 completely wrap around the valve needle 5, making the heating area of ​​the valve needle 5 uniform and the heating effect good. This can significantly increase the temperature of the material inside the valve needle 5 and achieve a rapid heating effect.

[0031] Example 2: Figures 1-2 , Figures 5-6 The present invention provides a technical solution: a small hot nozzle device, which discloses: a replacement component 8 includes a threaded groove 801, which is fixedly installed at the bottom of the hot nozzle body 1; the replacement component 8 also includes a mounting plate 802, which is fixedly installed on the outside of the nozzle tip 7, and the diameter of the mounting plate 802 is the same as the diameter of the threaded groove 801; the replacement component 8 also includes a threaded sleeve 803, a through groove 804, and a retaining groove 805, the threaded sleeve 803 is threadedly connected to the outside of the threaded groove 801, and the through groove 804 is opened on the inner side of the threaded sleeve 803, and the retaining groove 805 is opened on the outer side of the threaded sleeve 803; the replacement component 8 also includes a fixing plate 806, a telescopic spring 807, and a retaining rod 808, the fixing plate 806 is fixedly installed at the bottom of the hot nozzle body 1, and the retaining rod 808 passes through the inner side of the fixing plate 806, the two ends of the telescopic spring 807 are respectively connected to the fixing plate 806 and the retaining rod 808, and the tail end of the retaining rod 808 is engaged with the inner side of the retaining groove 805;

[0032] When the nozzle 7 becomes clogged and needs replacement or repair, the locking rod 808 is manually pulled outward to separate its tail end from the locking groove 805. After separation, the threaded sleeve 803 is rotated in the reverse direction to remove it from the outside of the threaded groove 801, allowing the nozzle 7 to be removed and replaced. Once the replacement nozzle 7 is placed inside the threaded groove 801, the threaded sleeve 803 is rotated in the forward direction, connecting with the threaded groove 801 through the threaded connection. The nozzle 7 inside the thread groove 801 is fixed. After fixing, the locking rod 808 is released. The locking rod 808 is reset by the elastic force of the telescopic spring 807, so that the tail end of the locking rod 808 engages with the groove 805. The engagement of the tail end of the locking rod 808 with the groove 805 prevents the threaded sleeve 803 from rotating on its own, increases the connection stability between the threaded sleeve 803 and the thread groove 801, and avoids the threaded sleeve 803 from rotating on its own, which would cause the nozzle 7 inside the thread groove 801 to loosen.

[0033] Those aspects of the description which are not otherwise fully described are deemed to be part of the prior art to those of ordinary skill in the art.

[0034] While embodiments of the present application have been shown and described, it is to be understood that various other modifications can be made by those skilled in the art without departing from the spirit and scope of the present application, which is defined by the appended claims and their equivalents.

Claims

1. A small hot nozzle device, comprising a hot nozzle body (1), wherein a connecting plate (2) is fixedly installed on the upper end of the hot nozzle body (1), and decorative stripes (3) are installed at equal angles on the outer side of the connecting plate (2); a flow channel (4), wherein the flow channel (4) is opened at equal angles on the inner side of the connecting plate (2), and a valve needle (5) passes through the inner side of the flow channel (4). Its features are, Also includes: Heating assembly (6), which is disposed inside the hot nozzle body (1) and is connected to the valve needle (5); Mouth tip (7), said mouth tip (7) is installed at the bottom of the hot nozzle body (1); Replacement component (8), wherein the replacement component (8) is disposed between the hot nozzle body (1) and the nozzle tip (7); wherein, Heating component (6) is used to heat valve needle (5); Replace component (8) to replace nozzle (7).

2. The miniature hot nozzle device according to claim 1, characterized in that: The heating assembly (6) includes a heating chamber (601), a storage chamber (602) and a partition (603). The heating chamber (601) is located inside the hot nozzle body (1), the storage chamber (602) is located inside the hot nozzle body (1), and a partition (603) is provided between the storage chamber (602) and the heating chamber (601).

3. A small hot nozzle device according to claim 2, characterized in that: The heating assembly (6) also includes a cover (604), a battery (605) and a heating tube (606). The cover (604) is fixedly installed on the upper end of the partition (603), and the battery (605) is fixedly installed on the inner side of the cover (604). The heating tube (606) is installed at an equal angle on the outer side of the cover (604), and a valve needle (5) passes through the inner side of the heating tube (606).

4. A miniature hot nozzle device according to claim 3, characterized in that: The heating assembly (6) also includes a control module (607) and a temperature sensor (608). The control module (607) is fixedly installed on the outside of the cover (604), and the control module (607) is electrically connected to the heating tube (606). The temperature sensor (608) is fixedly installed on the outside of the cover (604), and the temperature sensor (608) and the valve needle (5) are distributed in a left-right correspondence.

5. A miniature hot nozzle device according to claim 1, characterized in that: The replacement component (8) includes a threaded groove (801), which is fixedly installed at the bottom of the hot nozzle body (1).

6. A miniature hot nozzle device according to claim 5, characterized in that: The replacement component (8) also includes a patch (802), which is fixedly installed on the outside of the nozzle (7), and the diameter of the patch (802) is the same as the diameter of the thread groove (801).

7. A miniature hot nozzle device according to claim 6, characterized in that: The replacement component (8) also includes a threaded sleeve (803), a through groove (804), and a retaining groove (805). The threaded sleeve (803) is threaded to the outside of the threaded groove (801), and the through groove (804) is provided on the inside of the threaded sleeve (803). The retaining groove (805) is provided on the outside of the threaded sleeve (803).

8. A miniature hot nozzle device according to claim 7, characterized in that: The replacement component (8) also includes a fixing plate (806), a telescopic spring (807), and a locking rod (808). The fixing plate (806) is fixedly installed at the bottom of the hot nozzle body (1), and the locking rod (808) passes through the inner side of the fixing plate (806). The two ends of the telescopic spring (807) are connected to the fixing plate (806) and the locking rod (808) respectively, and the tail end of the locking rod (808) is engaged with the inner side of the slot (805).

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