Vacuumizing device

Abstract

The utility model provides a vacuumizing device which comprises a mold core, and an exhaust passage is arranged in the mold core. The vacuum generation assembly is connected with the mold core through the exhaust passage, and the vacuum generation assembly is used for generating negative pressure so as to extract air in the mold core; and the air compression assembly is connected with the vacuum generation assembly, and the air compression assembly is used for providing compressed air for the vacuum generation assembly. By means of the device, the problem that air in the cavity cannot be completely exhausted is solved; burrs are generated due to the influence of the overflow edge value; the exhaust groove can only be formed in the parting surface; the daily maintenance frequency is high, and a large amount of time and labor are wasted.

Description

Technical Field

[0001] The present application relates to the technical field of trays, and in particular to a vacuum extraction device. Background Art

[0002] As the core tool in pallet production, the performance and quality of pallet molds directly determine the production efficiency and quality of pallets. At present, the pallet molds on the market generally adopt the design of adding exhaust grooves to the integral mold core to deal with the air trapping problem that the mold may encounter during the injection molding process. However, this design has exposed some obvious shortcomings in actual application.

[0003] First, despite the design of the exhaust groove, the air in the cavity cannot be completely exhausted. During the injection molding process, the unexpelled air will form bubbles inside the mold, which will not only affect the appearance quality of the pallet, but also cause the structural strength of the pallet to fail to meet the standards, thus affecting its performance in actual applications.

[0004] Secondly, the existing pallet mold design is also affected by the overflow value, which is prone to burrs. The overflow value refers to the degree to which the plastic overflows from the mold parting surface during the injection molding process. It is affected by many factors such as mold design and injection molding process. When the overflow value is too large, the plastic will form burrs at the mold parting surface, which will not only reduce the appearance of the pallet, but also increase the subsequent processing costs.

[0005] In addition, the exhaust groove can only be opened on the parting surface. This design limitation limits the exhaust effect of the mold. In some complex tray structures, relying solely on the exhaust groove on the parting surface may not meet the exhaust requirements, resulting in air entrapment during the injection molding process. At the same time, due to the existence of the exhaust groove, the maintenance of the mold has become more cumbersome. The exhaust groove needs to be cleaned and maintained every day, which not only wastes a lot of time and labor, but may also affect the service life of the mold. Utility Model Content

[0006] The present application provides a vacuum extraction device to solve the problems that the air in the cavity cannot be completely exhausted; burrs appear due to the influence of the overflow value; the exhaust groove can only be opened on the parting surface; the daily maintenance frequency is high, which wastes a lot of time and manpower.

[0007] The device comprises:

[0008] A mold core having an exhaust passage therein;

[0009] A vacuum generating assembly, the vacuum generating assembly is connected to the mold core through the exhaust duct, and the vacuum generating assembly is used to generate negative pressure to extract the air in the mold core;

[0010] An air compression component is connected to the vacuum generating component, and the air compression component is used to provide compressed air for the vacuum generating component.

[0011] Preferably, the vacuum generating assembly comprises:

[0012] a first air pipe, one end of which is connected to the mold core;

[0013] A vacuum generator, the other end of the first air pipe is connected to the vacuum generator, and the vacuum generator is used to work with compressed air provided by the vacuum generating assembly to generate negative pressure;

[0014] A second air pipe, one end of which is connected to the vacuum generator, and the other end of which is connected to the air compression component.

[0015] Preferably, the vacuum generating assembly further comprises a quick-connect connector, and the quick-connect connector is arranged between the first air pipe and the exhaust duct.

[0016] Preferably, the vacuum generating assembly further comprises a solenoid valve, and the solenoid valve is arranged between the second air pipe and the vacuum generator.

[0017] Preferably, the air compression assembly comprises:

[0018] An air compressor, the air compressor is used to provide compressed air to the vacuum generating assembly;

[0019] A compressed air pipeline, one end of which is connected to the air compressor, and the other end of which is connected to the solenoid valve.

[0020] Preferably, the air compression assembly further comprises:

[0021] A soundproof cover, wherein the soundproof cover has a cavity inside, and the air compressor and part of the compressed air pipeline are arranged in the cavity;

[0022] An air inlet fan, the air inlet fan being arranged on the inner wall of the inner cavity of the soundproof cover, and the air inlet fan being used to provide air to the inner cavity of the soundproof cover;

[0023] An exhaust fan is arranged on the inner wall of the internal cavity of the sound insulation cover, and the exhaust fan is used to exhaust the air in the internal cavity of the sound insulation cover.

[0024] Preferably, the air compression assembly further comprises:

[0025] A first silencer pipe, the first silencer pipe is arranged on the outer wall of the soundproof cover, and the first silencer pipe is connected to the air inlet fan;

[0026] A second silencer pipe is provided on the outer wall of the soundproof cover, and the second silencer pipe is connected to the exhaust fan.

[0027] Preferably, the air compression assembly further comprises:

[0028] A support base, the support base is arranged at the bottom of the sound insulation cover, and the air compressor is arranged on the support base;

[0029] A wheel set is arranged on a side of the support base away from the air compressor.

[0030] Preferably, the support base comprises:

[0031] Base body;

[0032] A shock absorber, wherein the shock absorber is arranged on a side of the base body close to the air compressor;

[0033] A mounting frame, one side of the mounting frame is connected to the shock absorber, and the other side of the mounting frame is connected to the air compressor;

[0034] A butt plate is arranged on the side of the base body, and the butt plate has a preset distance from the ground when the air compression component is not working.

[0035] As can be seen from the above content, the present application provides a vacuum extraction device, the device includes a mold core, the mold core has an exhaust duct; a vacuum generating assembly, the vacuum generating assembly is connected to the mold core through the exhaust duct, the vacuum generating assembly is used to generate negative pressure, thereby extracting the air in the mold core; an air compression assembly, the air compression assembly is connected to the vacuum generating assembly, and the air compression assembly is used to provide compressed air to the vacuum generating assembly. The present application solves the problems that the air in the mold cavity cannot be completely discharged; burrs will appear due to the influence of the overflow value; the exhaust groove can only be opened on the parting surface; the daily maintenance frequency is high, wasting a lot of time and manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0037] Figure 1 A schematic diagram of a vacuum pumping device for the present application;

[0038] Figure 2This is a front cross-sectional view of an air compression component in a vacuum pumping device of the present application;

[0039] Figure 3 This is a side view of an air compression component in a vacuum device of the present application. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0041] Figure 1 This is a schematic diagram of a vacuum pumping device according to the present application.

[0042] See also Figure 1 It can be seen that this embodiment provides a vacuum pumping device, which includes:

[0043] A mold core 100, wherein the mold core 100 has an exhaust passage 110;

[0044] The vacuum generating component 200 is connected to the mold core 100 through the exhaust duct 110. The vacuum generating component 200 is used to generate negative pressure to extract the air in the mold core 100. Specifically, in the present embodiment, the vacuum generating component 200 generates negative pressure and extracts the air in the mold core 100 through the exhaust duct 110.

[0045] The air compression component 300 is connected to the vacuum generating component 200, and is used to provide compressed air to the vacuum generating component 200. Specifically, in the present embodiment, the air compression component 300 provides compressed air to the vacuum generating component 200, so that the vacuum generating component 200 generates negative pressure.

[0046] Further, in some embodiments, the vacuum generating assembly 200 includes a first air pipe 210, one end of which is connected to the mold core 100; a vacuum generator 220, the other end of which is connected to the vacuum generator 220, and the vacuum generator 220 is used to work with compressed air provided by the vacuum generating assembly 200 to generate negative pressure; a second air pipe 230, one end of which is connected to the vacuum generator 220, and the other end of which is connected to the air compression assembly 300. Specifically, in this embodiment, the connection between the mold core 100 and the vacuum generator 220 is achieved through the first air pipe 210; and the connection between the vacuum generating assembly 200 and the air compression assembly 300 is achieved through the second air pipe 230.

[0047] Furthermore, in some embodiments, the vacuum generating assembly 200 also includes a quick-connect connector 240, and the quick-connect connector 240 is arranged between the first air pipe 210 and the exhaust duct 110. Specifically, in this embodiment, the quick-connect connector 240 can be used to quickly connect and disconnect the vacuum generator 220 and the mold core 100.

[0048] Furthermore, in some embodiments, the vacuum generating assembly 200 also includes a solenoid valve 250, and the solenoid valve 250 is disposed between the second air pipe 230 and the vacuum generator 220. Specifically, in this embodiment, by opening or closing the solenoid valve 250, the extraction of air in the mold core 100 can be quickly opened or closed.

[0049] Further, in some embodiments, the air compression component 300 includes an air compressor 310, and the air compressor 310 is used to provide compressed air for the vacuum generating component 200; a compressed air pipe 320, one end of the compressed air pipe 320 is connected to the air compressor 310, and the other end of the compressed air pipe 320 is connected to the solenoid valve 250. Specifically, in this embodiment, compressed air is provided to the vacuum generating component 200 by the air compressor 310, and the compressed air pipe 320 is connected to the solenoid valve 250.

[0050] It should be noted that the structure of the compressed air pipe 320 can withstand a relatively high pressure, thereby preventing the pipe from rupturing due to the delivery of compressed air.

[0051] Figure 2 This is a front cross-sectional view of an air compression component in a vacuum pumping device of the present application.

[0052] Figure 3This is a side view of an air compression component in a vacuum device of the present application.

[0053] See also Figure 2 and Figure 3 It can be seen that, further, in some embodiments, the air compression assembly 300 also includes a soundproof cover 330, the soundproof cover 330 has a cavity inside, the air compressor 310 and part of the compressed air pipeline 320 are arranged in the cavity; an air inlet fan 340, the air inlet fan 340 is arranged on the inner wall of the cavity inside the soundproof cover 330, and the air inlet fan 340 is used to provide air for the internal cavity of the soundproof cover 330; an exhaust fan 350, the exhaust fan 350 is arranged in the soundproof cover On the inner wall of the internal cavity of the sound enclosure 330, the exhaust fan 350 is used to exhaust the air in the internal cavity of the sound enclosure 330. Specifically, in this embodiment, by setting the air compressor 310 in the sound enclosure 330, the noise of the air compressor 310 when working can be reduced, wherein the sound enclosure 330 is a closed structure, and when the sound enclosure 330 is a closed structure, the air intake fan 340 and the exhaust fan 350 need to be set to provide air exchange for the inside of the sound enclosure 330.

[0054] Furthermore, in some embodiments, the air compression component 300 also includes a first silencer pipe 360, which is disposed on the outer wall of the soundproof cover 330, and the first silencer pipe 360 ​​is connected to the air inlet fan 340; a second silencer pipe 370, which is disposed on the outer wall of the soundproof cover 330, and the second silencer pipe 370 is connected to the exhaust fan 350. Specifically, in this embodiment, by arranging the first silencer pipe 360 ​​and the second silencer pipe 370, the noise of the air inlet fan 340 and the exhaust fan 350 during operation can be reduced.

[0055] Furthermore, in some embodiments, the air compression component 300 also includes a support base 380, wherein the support base 380 is disposed at the bottom of the sound insulation cover 330, and the air compressor 310 is disposed on the support base 380; a wheel group 390, wherein the wheel group 390 is disposed on a side of the support base 380 away from the air compressor 310. Specifically, in this embodiment, by providing the support base 380, direct contact between the air compression component 300 and the ground can be avoided, thereby improving the service life of the equipment; and by providing the wheel group 390, the movement of the device is facilitated.

[0056] Further, in some embodiments, the support base 380 includes a base body 381; a shock absorber 382, ​​the shock absorber 382 is arranged on a side of the base body 381 close to the air compressor 310; a mounting frame 383, one side of the mounting frame 383 is connected to the shock absorber 382, ​​and the other side of the mounting frame 383 is connected to the air compressor 310; a plate 384, the plate 384 is arranged on the side of the base body 381, and the plate 384 has a certain distance from the ground when the air compression assembly 300 is not working. Preset distance, specifically, in this embodiment, by setting the shock absorber 382, ​​the vibration of the air compressor 310 during operation can be further reduced to avoid the problem of equipment damage caused by vibration; wherein the air compressor 310 is set on the mounting frame 383, it can avoid the direct contact between the air compressor 310 and the base body 381, and avoid the air compressor 310 bringing excessive vibration to the air compression assembly 300 as a whole during operation; by setting the abutment plate 384, the air compression assembly 300 can be placed more conveniently. Among them, the setting height of the abutment plate 384 can be adjusted.

[0057] This embodiment has the following advantages:

[0058] The utility model can solve the problems that the air in the cavity cannot be completely discharged; burrs will appear due to the influence of the overflow value, and the exhaust groove can only be opened on the parting surface; the daily maintenance frequency is high, which wastes a lot of time and labor. When the solenoid valve is opened during injection, the compressed air enters the vacuum generator through the compressed air pipeline and the second air pipe, and negative pressure is generated under the operation of the vacuum generator. The negative pressure extracts the air in the mold core through the first air pipe and the airway. After the pressure holding is completed, the solenoid valve is closed. By adding a vacuum pumping device, the air in the cavity can be extracted to avoid burning, and the product quality is improved. The vacuum pumping device can solve the shutdown caused by poor mold exhaust; shorten the maintenance time, and the maintenance operation is efficient and convenient. The airway can be freely designed according to the product structure, and multiple airways can also be used. The vacuum pumping device does not need daily maintenance, reduces the maintenance operation intensity, and reduces the labor intensity of operating and maintaining personnel. In addition, under the action of the soundproof cover, the noise generated when the air compressor body works is reduced. The influence on the outside world, when the temperature sensor detects that the temperature in the soundproof cover is higher than the set value, the controller controls the operation of the air inlet fan and the air outlet fan to improve the heat dissipation effect inside the soundproof cover.

Claims

1. A vacuum pumping device, characterized in that: The device comprises: A mold core (100), wherein the mold core (100) has an exhaust passage (110); a vacuum generating assembly (200), the vacuum generating assembly (200) being connected to the mold core (100) via the exhaust passage (110), the vacuum generating assembly (200) being used to generate negative pressure, thereby extracting air from the mold core (100); An air compression component (300) is connected to the vacuum generating component (200), and the air compression component (300) is used to provide compressed air for the vacuum generating component (200).

2. A vacuum pumping device according to claim 1, characterized in that: The vacuum generating assembly (200) comprises: a first air pipe (210), one end of the first air pipe (210) being connected to the mold core (100); a vacuum generator (220), the other end of the first air pipe (210) being connected to the vacuum generator (220), the vacuum generator (220) being used to operate using compressed air provided by the vacuum generating assembly (200), thereby generating negative pressure; A second air pipe (230), one end of the second air pipe (230) is connected to the vacuum generator (220), and the other end of the second air pipe (230) is connected to the air compression component (300).

3. A vacuum pumping device according to claim 2, characterized in that: The vacuum generating assembly (200) further comprises a quick-connect connector (240), wherein the quick-connect connector (240) is arranged between the first air pipe (210) and the exhaust passage (110).

4. A vacuum pumping device according to claim 2, characterized in that: The vacuum generating assembly (200) further comprises a solenoid valve (250), wherein the solenoid valve (250) is arranged between the second air pipe (230) and the vacuum generator (220).

5. A vacuum pumping device according to claim 4, characterized in that: The air compression assembly (300) comprises: an air compressor (310), the air compressor (310) being used to provide compressed air for the vacuum generating assembly (200); A compressed air pipeline (320), one end of the compressed air pipeline (320) is connected to the air compressor (310), and the other end of the compressed air pipeline (320) is connected to the solenoid valve (250).

6. A vacuum pumping device according to claim 5, characterized in that: The air compression assembly (300) further comprises: A soundproof cover (330), wherein the soundproof cover (330) has a cavity inside, and the air compressor (310) and a portion of the compressed air pipeline (320) are arranged in the cavity; An air inlet fan (340), the air inlet fan (340) being arranged on an inner wall of an internal cavity of the sound insulation cover (330), the air inlet fan (340) being used to provide air to the internal cavity of the sound insulation cover (330); An exhaust fan (350), wherein the exhaust fan (350) is arranged on the inner wall of the internal cavity of the soundproof cover (330), and the exhaust fan (350) is used to exhaust the air in the internal cavity of the soundproof cover (330).

7. A vacuum pumping device according to claim 6, characterized in that: The air compression assembly (300) further comprises: A first sound-absorbing pipe (360), wherein the first sound-absorbing pipe (360) is arranged on the outer wall of the soundproof cover (330), and the first sound-absorbing pipe (360) is connected to the air inlet fan (340); A second sound-absorbing pipe (370), wherein the second sound-absorbing pipe (370) is arranged on the outer wall of the soundproof cover (330), and the second sound-absorbing pipe (370) is connected to the exhaust fan (350).

8. A vacuum pumping device according to claim 6, characterized in that: The air compression assembly (300) further comprises: A support base (380), the support base (380) being arranged at the bottom of the soundproof cover (330), and the air compressor (310) being arranged on the support base (380); A wheel set (390), wherein the wheel set (390) is arranged on a side of the support base (380) away from the air compressor (310).

9. A vacuum pumping device according to claim 8, characterized in that: The support base (380) comprises: Base body (381); a shock absorber (382), wherein the shock absorber (382) is arranged on a side of the base body (381) close to the air compressor (310); A mounting frame (383), one side of the mounting frame (383) being connected to the shock absorber (382), and the other side of the mounting frame (383) being connected to the air compressor (310); A butt plate (384), wherein the butt plate (384) is arranged on a side of the base body (381), and when the air compression component (300) is not working, the butt plate (384) is at a preset distance from the ground.

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