Embedded total-heat side glue inlet hot nozzle structure

Abstract

The utility model discloses an embedded total-heat side glue feeding hot nozzle structure which comprises a fixed seat and a plurality of side glue feeding molds arranged on the fixed seat, the hot nozzle moves at the port of the side glue feeding mold along the horizontal direction to inject glue; the auxiliary shaping assembly is arranged on the outer wall of the side glue feeding mold and comprises a first liquid inlet pipe and a second liquid inlet pipe which are wound on the outer walls of the two ends of the side glue feeding mold respectively; two ends of the cooling cavity are respectively communicated with the first liquid inlet pipe and the second liquid inlet pipe, and the cooling cavity is arranged on the fixed seat; and the piston is slidably arranged on the inner wall of the cooling cavity to separate the cooling cavity. According to the embedded full-heat side glue inlet hot nozzle structure, the piston slides in the cooling cavity, so that cooling liquid is changed to enter different liquid inlet pipes, and the temperature of the first liquid inlet pipe or the second liquid inlet pipe is changed; and finally, the side glue feeding mold is subjected to three stages of second end heating-first end cooling and normal temperature recovery of the second end-second end cooling and normal temperature recovery of the first end, and mold closing and demolding are completed.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to an embedded full-heat side-injection hot nozzle structure. Background Art

[0002] The full-heat side-injection hot nozzle structure is a hot nozzle structure that injects the molten fluid material in the hot runner through the side of the mold, which can effectively avoid the appearance of injection points on the top of the finished product. This hot nozzle structure usually requires attention to the flow balance of the fluid, and proper cooling should be performed to reduce gate marks.

[0003] In conjunction with publication number CN114559612A, publication date 2022-05-31, an intelligent rear mold embedded full-heat side-feed glue hot nozzle structure is disclosed.

[0004] In the prior art including the above-mentioned patent, the transfer hot nozzle is arranged at the bottom of the diverter plate, the nozzle core is arranged at the bottom of the transfer hot nozzle, the one-nozzle multi-head side-feeding hot nozzle is arranged at the bottom of the nozzle core, and the diverter plate, the transfer hot nozzle and the one-nozzle multi-head side-feeding hot nozzle are all provided with heaters and temperature sensors; an auxiliary device is also arranged on one side of the front mold, and the auxiliary device includes: a first box body, a vibration plate, a first slide groove, a first slider, a fixed plate, a first rotating rod, teeth, a turntable, a mounting block, a rotating shaft, a first gear, a first rack, a slide rail, a second slider, a second rotating rod, a driving shaft, a fan blade, a first motor, a filter screen, and a brush rod. In the above technology, a heater is used to heat a multi-head side-feeding hot nozzle to ensure that the fluid in the hot nozzle is in a heated flowing state. The first motor drives the driving shaft to rotate, drives the fan blades to rotate, and dissipates heat in the first box. At the same time, it drives the second rotating rod to rotate. However, two different structures are required to perform heating and mold closing and cooling and demolding, which increases the required components and matching processes and results in a large energy loss. Utility Model Content

[0005] The utility model aims to provide an embedded full-heat side-injection hot nozzle structure for solving the above problems.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an embedded full-heat side-injection hot nozzle structure, comprising a fixed seat and a plurality of side-injection molds arranged on the fixed seat;

[0007] A hot nozzle that moves horizontally at the side-injection mold port to inject glue;

[0008] The auxiliary shaping component arranged on the outer wall of the side-injection mold includes:

[0009] A first liquid inlet pipe and a second liquid inlet pipe respectively wound around the outer walls of both ends of the side-injection mold;

[0010] The two ends are respectively connected with the first liquid inlet pipe and the second liquid inlet pipe, and are arranged in a cooling cavity on the fixed seat;

[0011] A piston is slidably arranged on the inner wall of the cooling cavity to separate the cooling cavity.

[0012] Wherein, the parts of the first liquid inlet pipe and the second liquid inlet pipe body close to the outer wall of the side injection mold are both S-shaped structures.

[0013] Preferably, a push rod is fixedly provided on the piston, one end of which extends out of the fixed seat, and is pushed by the heated nozzle to move in the horizontal direction.

[0014] Preferably, a fixed cavity is fixedly provided on the fixed seat, and the side-injection mold is assembled inside the fixed cavity.

[0015] Preferably, the auxiliary shaping assembly further comprises a base, a middle fixing seat and a fixing top which are arranged on the inner wall of the fixing cavity and arranged along the axial diameter direction;

[0016] The first liquid inlet pipe is located between the base and the middle fixing seat;

[0017] The second liquid inlet pipe is located between the middle fixing seat and the fixing top.

[0018] Preferably, the base, the middle fixed seat and the fixed top are all slidably assembled with the side-injection mold.

[0019] Preferably, a fixing ring is provided at the center of the base, the middle fixing seat and the fixing top, and a through hole for connecting bolts is opened in the circumferential direction on the fixing ring.

[0020] In the above technical scheme, the utility model provides an embedded full-heat side-injection hot nozzle structure, which has the following beneficial effects: by sliding the piston in the cooling chamber, the coolant is changed to enter different liquid inlet pipes, thereby changing the temperature of the first liquid inlet pipe or the second liquid inlet pipe, and finally making the side-injection mold go through three stages of heating up the second end - cooling the first end and restoring the second end to normal temperature - cooling the second end and restoring the first end to normal temperature, thereby completing mold closing and demolding. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 An overall three-dimensional schematic diagram provided for an embodiment of the utility model;

[0023] Figure 2A schematic diagram of the overall assembly position provided for an embodiment of the utility model;

[0024] Figure 3 A schematic diagram of a base and a side-injection mold provided in an embodiment of the utility model;

[0025] Figure 4 A schematic diagram of a middle fixing seat provided in an embodiment of the utility model;

[0026] Figure 5 A schematic diagram of a fixed top provided in an embodiment of the utility model;

[0027] Figure 6 A schematic diagram of the connection between the cooling chamber and the first liquid inlet pipe and the second liquid inlet pipe provided in an embodiment of the utility model;

[0028] Description of reference numerals:

[0029] 1. Fixed seat; 2. Fixed cavity; 21. Side-feeding mold; 3. Hot nozzle; 4. Auxiliary shaping component; 41. Base; 42. Fixed ring; 43. First liquid inlet pipe; 44. Middle fixed seat; 45. Second liquid inlet pipe; 46. Fixed top; 5. Cooling cavity; 51. Piston; 52. Push rod. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0031] like Figure 1-6 As shown, an embedded full-heat side-injection hot nozzle structure includes a fixing seat 1 and a plurality of side-injection molds 21 arranged on the fixing seat 1;

[0032] A hot nozzle 3 that moves horizontally at the port of the side-injection mold 21 to inject glue;

[0033] The auxiliary shaping component 4 arranged on the outer wall of the side-injection mold 21 includes:

[0034] A first liquid inlet pipe 43 and a second liquid inlet pipe 45 respectively wound around the outer walls of both ends of the side injection mold 21;

[0035] The two ends are respectively connected with the first liquid inlet pipe 43 and the second liquid inlet pipe 45, and are arranged in the cooling chamber 5 on the fixing base 1;

[0036] A piston 51 is slidably disposed on the inner wall of the cooling chamber 5 to separate the cooling chamber 5 .

[0037] The first liquid inlet pipe 43 and the second liquid inlet pipe 45 are both S-shaped structures in their parts close to the outer wall of the side injection mold 21 .

[0038] Specifically, in the non-injected state, the first liquid inlet pipe 43 is filled with cooling liquid restored to room temperature, the end where the injection port of the side injection mold 21 is located is the first end, and the corresponding end is the second end, then the first liquid inlet pipe 43 is located at the second end of the side injection mold 21, the second liquid inlet pipe 45 is located at the first end of the side injection mold 21, the number of side injection molds 21 is consistent with the number of hot nozzles 3, the hot nozzles 3 move in the horizontal direction until the hot nozzles 3 correspond to the injection port on the side of the side injection mold 21, and then the injection begins. Since the hot nozzle 3 is provided with a heating device, the first liquid inlet pipe 43 and the second liquid inlet pipe 45 are close to the outer wall of the side injection mold 21. The structure is S-shaped, and the heat absorption efficiency is high. The normal temperature cooling liquid in the first liquid inlet pipe 43 is heated, so that the temperature of the second end of the side injection mold 21 is increased, so that the injection raw material will not be prematurely solidified due to the temperature drop when it flows to the second end of the side injection mold 21. Solid, then drive the piston 51 forward to slide on the inner wall of the cooling chamber 5, draw the coolant in the first liquid inlet pipe 43 back to the cooling chamber 5 for cooling, and push the coolant originally contained in the cooling chamber 5 into the second liquid inlet pipe 45. Because the second liquid inlet pipe 45 is located at the first end where the injection port is located, the glue has been injected for a period of time and needs to be cooled. At this time, the coolant flows in the second liquid inlet pipe 45 to absorb heat and promote the molding of the raw materials, while there is no coolant in the first liquid inlet pipe 43, and it gradually returns to normal temperature. Finally, drive the piston 51 in the reverse direction to slide. At this time, the coolant in the cooling chamber 5 enters the first liquid inlet pipe 43 to cool the second end of the side injection mold 21, and the coolant in the second liquid inlet pipe 45 is withdrawn, and the second liquid inlet pipe 45 is restored to normal temperature. Finally, the side injection mold 21 undergoes three stages of heating up the second end - cooling down the first end and restoring the second end to normal temperature - cooling the second end and restoring the first end to normal temperature, completing mold closing and demolding.

[0039] In the above technology, the piston 51 slides in the cooling chamber 5 to change the coolant entering different liquid inlet pipes, thereby changing the temperature of the first liquid inlet pipe 43 or the second liquid inlet pipe 45, and finally making the side-injection mold 21 go through three stages of heating up the second end - cooling down the first end and restoring the second end to normal temperature - cooling the second end and restoring the first end to normal temperature, thereby completing mold closing and demolding.

[0040] As an embodiment further provided by the present invention, a push rod 52 is fixedly provided on the piston 51 and has one end extending out of the fixing seat 1, and is pushed by the heating nozzle 3 to move in the horizontal direction.

[0041] Specifically, a spring is provided on the push rod 52 to keep the push rod 52 extending out of the fixed seat 1, thereby keeping the piston 51 in a position close to the connection point of the first liquid inlet pipe 43. At this time, the coolant is squeezed out of the cooling chamber 5 and is located in the first liquid inlet pipe 43. As the external temperature returns to normal temperature, when the hot nozzle 3 starts to inject glue, the hot nozzle 3 pushes the push rod 52 to move horizontally, so that the piston 51 moves from the connection point close to the first liquid inlet pipe 43 to the connection point close to the second liquid inlet pipe 45, thereby squeezing the coolant in the cooling chamber 5 into the second liquid inlet pipe 45 and withdrawing the coolant in the first liquid inlet pipe 43. Then, the hot nozzle 3 leaves after completing the glue injection. The push rod 52 without the push of the hot nozzle 3 extends out of the fixed seat 1 again under the action of the spring, driving the piston 51 to move from the connection point close to the second liquid inlet pipe 45 to the connection point close to the first liquid inlet pipe 43, squeezing the coolant in the cooling chamber 5 into the first liquid inlet pipe 43 again, recovering to the non-injected state, and at the same time withdrawing the coolant in the second liquid inlet pipe 45 back to the cooling chamber 5.

[0042] As another embodiment further provided by the present invention, the auxiliary shaping component 4 further includes a base 41, a middle fixing seat 44, and a fixing top 46 which are arranged on the inner wall of the fixing cavity 2 and arranged along the axial diameter direction;

[0043] The first liquid inlet pipe 43 is located between the base 41 and the middle fixing seat 44;

[0044] The second liquid inlet pipe 45 is located between the middle fixing seat 44 and the fixing top 46 .

[0045] Specifically, since the side-injection mold 21 is assembled in the fixed cavity 2, different side-injection molds 21 can be replaced to meet different production needs. When replacing, when the first liquid inlet pipe 43, the second liquid inlet pipe 45 and the cooling cavity 5 need to be replaced, first, the base 41 is assembled to the bottom of the inner wall of the fixed cavity 2, and then the first liquid inlet pipe 43 connected to the cooling cavity 5 is placed on the wavy surface at the end of the base 41, and then one end of the middle fixed seat 44 is abutted against the first liquid inlet pipe 43, and the other end is used to place the second liquid inlet pipe 45 connected to the cooling cavity 5, and then the fixed top 46 is assembled to the port of the fixed cavity 2, and the cooling cavity 5 is assembled on the fixed seat 1 to complete the replacement.

[0046] As another embodiment further provided by the present invention, a fixing ring 42 is disposed at the center of the base 41 , the middle fixing seat 44 , and the fixing top 46 , and a through hole for connecting bolts is opened in the circumferential direction on the fixing ring 42 .

[0047] Specifically, after the replacement is completed, the bolts are inserted into the through holes and tightened, so that the base 41, the middle fixing seat 44 and the fixing top 46 are locked as a whole, and the first liquid inlet pipe 43 and the second liquid inlet pipe 45 are pressed and fixed. Since the parts of the first liquid inlet pipe 43 and the second liquid inlet pipe 45 close to the outer wall of the side glue injection mold 21 are both S-shaped structures, the friction between the first liquid inlet pipe 43 and the second liquid inlet pipe 45 is relatively large to avoid slipping. At the same time, the fixing ring 42 forms a channel for the side glue injection mold 21 to pass through, so that the side glue injection mold 21 can be replaced separately.

[0048] Working principle: In the non-injection state, the first liquid inlet pipe 43 is filled with cooling liquid restored to room temperature, the end where the injection port of the side injection mold 21 is located is the first end, and the corresponding end is the second end, then the first liquid inlet pipe 43 is located at the second end of the side injection mold 21, and the second liquid inlet pipe 45 is located at the first end of the side injection mold 21. The number of the side injection molds 21 is consistent with the number of the hot nozzles 3. Since the hot nozzles 3 are provided with a heating device, the first liquid inlet pipe 43 and the second liquid inlet pipe 45 are close to the outer wall of the side injection mold 21. The parts are all S-shaped structures with high heat absorption efficiency. The normal temperature coolant in the first liquid inlet pipe 43 is heated, so that the temperature of the second end of the side-feeding mold 21 is increased, so that the injection material will not solidify prematurely due to the temperature drop when it flows to the second end of the side-feeding mold 21. At the same time, the hot nozzle 3 moves in the horizontal direction until the hot nozzle 3 corresponds to the injection port on the side of the side-feeding mold 21. In this process, the hot nozzle 3 pushes the push rod 52 to move in the horizontal direction, so that the piston 51 moves from the connection position close to the first liquid inlet pipe 43 to the connection position close to the second end. The connecting part of the liquid inlet pipe 45 is movable, so that the coolant in the cooling chamber 5 is squeezed into the second liquid inlet pipe 45, and the coolant in the first liquid inlet pipe 43 is withdrawn. Because the second liquid inlet pipe 45 is located at the first end where the glue injection port is located, the glue has been injected for a period of time and needs to be cooled. At this time, the coolant flows in the second liquid inlet pipe 45 to absorb heat and promote the molding of the raw material, while there is no coolant in the first liquid inlet pipe 43, and it gradually returns to normal temperature. Then the hot nozzle 3 leaves after completing the glue injection, and the push rod 52 that loses the push of the hot nozzle 3 is pushed by the spring. The fixing seat 1 is extended again, driving the piston 51 to move from the connection point close to the second liquid inlet pipe 45 to the connection point close to the first liquid inlet pipe 43, and the coolant in the cooling chamber 5 is squeezed into the first liquid inlet pipe 43 again, and the state of not injecting glue is restored. At the same time, the coolant in the second liquid inlet pipe 45 is pumped back to the cooling chamber 5, and the second liquid inlet pipe 45 is restored to room temperature. Finally, the side injection mold 21 undergoes three stages: the second end is heated up - the first end is cooled down and the second end is restored to room temperature - the second end is cooled down and the first end is restored to room temperature, and the mold closing and demolding are completed;

[0049] When replacement is needed, when the first liquid inlet pipe 43, the second liquid inlet pipe 45 and the cooling chamber 5 need to be replaced, first, the base 41 is assembled on the bottom of the inner wall of the fixed chamber 2, and then the first liquid inlet pipe 43 connected to the cooling chamber 5 is placed on the wavy surface at the end of the base 41, and then one end of the middle fixed seat 44 is abutted against the first liquid inlet pipe 43, and the other end is used to place the second liquid inlet pipe 45 connected to the cooling chamber 5, and then the fixed top 46 is assembled on the port of the fixed chamber 2, and the cooling chamber 5 is assembled on the fixed seat 1. After the replacement is completed, the bolts are inserted into the through holes and tightened, so that the base 41, the middle fixed seat 44 and the fixed top 46 are locked as a whole, and the first liquid inlet pipe 43 and the second liquid inlet pipe 45 are pressed and fixed, and at the same time the fixing ring 42 forms a channel for the side injection mold 21 to pass through, so that the side injection mold 21 can be replaced separately.

[0050] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An embedded full-heat side-injection hot nozzle structure, characterized in that: It comprises a fixing seat (1) and a plurality of side-injection molds (21) arranged on the fixing seat (1); A hot nozzle (3) that moves horizontally at the port of the side-injection mold (21) to inject glue; The auxiliary shaping component (4) is arranged on the outer wall of the side-injection mold (21), comprising: A first liquid inlet pipe (43) and a second liquid inlet pipe (45) respectively wound around the outer walls of both ends of the side-injection mold (21); The two ends are respectively connected to the first liquid inlet pipe (43) and the second liquid inlet pipe (45), and are arranged in a cooling chamber (5) on the fixing seat (1); A piston (51) is slidably disposed on the inner wall of the cooling chamber (5) to separate the cooling chamber (5). Wherein, the parts of the first liquid inlet pipe (43) and the second liquid inlet pipe (45) close to the outer wall of the side injection mold (21) are both S-shaped structures.

2. The embedded full-heat side-injection hot nozzle structure according to claim 1 is characterized in that: The piston (51) is fixedly provided with a push rod (52) having one end extending out of the fixed seat (1) and is pushed by the heating nozzle (3) to move in the horizontal direction.

3. The embedded full-heat side-injection hot nozzle structure according to claim 1 is characterized in that: A fixed cavity (2) is fixedly arranged on the fixed seat (1), and the side-injection mold (21) is assembled inside the fixed cavity (2).

4. The embedded full-heat side-injection hot nozzle structure according to claim 1 is characterized in that: The auxiliary shaping component (4) also includes a base (41), a middle fixing seat (44), and a fixing top (46) which are arranged on the inner wall of the fixing cavity (2) and arranged along the axial diameter direction; The first liquid inlet pipe (43) is located between the base (41) and the middle fixing seat (44); The second liquid inlet pipe (45) is located between the middle fixed seat (44) and the fixed top (46).

5. The embedded full-heat side-injection hot nozzle structure according to claim 4 is characterized in that: The base (41), the middle fixed seat (44) and the fixed top (46) are all slidably assembled with the side-injection mold (21).

6. The embedded full-heat side-injection hot nozzle structure according to claim 5 is characterized in that: A fixing ring (42) is provided at the center of the base (41), the middle fixing seat (44) and the fixing top (46), and a through hole for connecting bolts is opened in the circumferential direction on the fixing ring (42).

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