Multi-port injection one-step forming die for long strip small household appliance panel

Abstract

The utility model discloses a long strip small household electrical appliances panel's multi -mouth injection mould one -shot forming mould relates to injection mould technical field, and the utility model discloses a fixed mould seat, the upper portion outside fixed mounting of fixed mould seat has a plurality of even distribution's guide rod, and the upper portion of guide rod is equipped with movable die holder, and the upper portion of movable die holder is equipped with guide mechanism, and guide mechanism includes: lubricating component includes a plurality of bushings fixedly installed on the upper portion of movable die holder, when the movable die holder is down along the guide rod and closes the mould, the pusher frame is pressed and drives the sealing plug and goes up, makes the lubricating liquid in sealing plug recess to flow into lubricating mouth through guide port, after injection moulding and the movable die holder go up, the sealing plug resets under the action of reset spring, and guide port and lubricating mouth are staggered to break off liquid supply, avoid lubricating liquid leakage waste, and when bushing slides, the lubricating liquid in lubricating mouth is evenly attached to the surface of guide rod, need not manual frequent addition, guarantee the sustained lubrication of guide rod and bushing.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a multi-port injection molding die for long strip-shaped small household appliance panels. Background Technology

[0002] Injection molding is one of the key technologies for producing plastic products, especially complex and precise small appliance exterior parts. Long and narrow appliance panels, such as remote control panels, air purifier control panels, and smart doorbell panels, have extremely high requirements for dimensional stability such as flatness and warpage after injection molding. Such products are usually produced using multi-injection one-time molding molds.

[0003] Referring to the patent document: Patent Publication No. CN213227363U, Patent Publication Date 2021-05-18, a disposable lunch box production injection molding die is disclosed. This utility model relates to the field of injection molding technology, including an injection molding die and an upper mold base and a lower mold base that make up the injection molding die. The injection molding die includes an upper mold base and a lower mold base, and a guide structure is installed between the upper mold base and the lower mold base. A moving mold is installed at the bottom of the upper mold base, and a core is provided at the middle position of the moving mold. A fixed mold is installed at the top of the lower mold base. This utility model sets up a detachable cavity, which is placed in a groove on the fixed mold and fixed by a fixing plate and fixing bolts. The bolt fixing facilitates installation and disassembly. When cleaning and replacement are required, it can be removed for cleaning and replacement, which is more convenient and solves the problems of inconvenient cavity disassembly and cleaning, and the need to replace the entire mold when the cavity is damaged, which increases production costs.

[0004] Based on the search of patent numbers and the shortcomings of existing technologies, the following was found:

[0005] During the mold closing process between the moving mold base and the fixed mold base, the guide rod plays a guiding role. However, in traditional molds, when the guide rod slides in conjunction with the sleeve on the moving mold base, there is continuous friction between the guide rod and the sleeve. The traditional method of manually applying grease periodically results in a short lubrication cycle, making it difficult to ensure continuity and control the amount of lubrication. Too little lubrication will lead to increased friction and wear, affecting guiding accuracy and mold life, while too much lubrication may cause oil leakage, contaminating the cavity and finished workpiece, resulting in defective or even scrap products.

[0006] Therefore, this utility model provides a multi-injection mold for long strip-shaped small household appliance panels. Utility Model Content

[0007] In order to solve the problems of uneven lubrication, easy leakage and contamination of the cavity, or accelerated wear of guide rods and sleeves due to manual lubrication in traditional injection molds, the purpose of this utility model is to provide a multi-port injection mold for long strip-shaped small household appliance panels.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a multi-injection molding die for long, narrow small appliance panels, comprising a fixed mold base, wherein multiple evenly distributed guide rods are fixedly installed on the upper outer side of the fixed mold base, a movable mold base is provided on the upper part of the guide rods, and a guiding mechanism is provided on the upper part of the movable mold base, the guiding mechanism comprising:

[0009] The lubrication assembly includes multiple sleeves fixedly installed on the upper part of the moving mold base. The multiple sleeves are slidably sleeved on the outside of the guide rod. A storage box is fixedly installed in the middle of the multiple sleeves. Multiple evenly distributed conveying ports are opened on the inner side of the multiple storage boxes. Multiple evenly distributed liquid inlets are opened on the outer side of the multiple sleeves. The multiple liquid inlets are aligned with the conveying ports. A sealing plug is slidably fitted on the lower part of the multiple sleeves. Multiple evenly distributed guide ports are opened on the middle of one side of the sealing plug. A pusher is slidably inserted through the lower part of the multiple sleeves. The top of the multiple pushers is fixedly installed in the middle of the bottom end of the sealing plug.

[0010] The detection component is located on the upper part of the fixed mold base and is used to buffer the fixed mold base.

[0011] Preferably, the detection assembly includes multiple compression springs fixedly installed on the upper part of the fixed mold base, each compression spring having a pressure ring fixedly installed at its top end, and each pressure ring having a sensor fixedly installed in its middle.

[0012] Preferably, an inlet pipe is fixedly installed on one side of the upper part of the storage tank, and multiple inlet pipes are interconnected with the storage tank.

[0013] Preferably, a return spring is fixedly installed at the center of the top of the sealing plug, and the tops of multiple return springs are all fixedly installed at the center of the sleeve.

[0014] Preferably, the inner side of each of the multiple sleeves is provided with multiple evenly distributed lubrication ports, and the multiple lubrication ports are used in conjunction with the guide ports.

[0015] Preferably, the upper part of the moving mold base has multiple injection ports, and the middle part of the fixed mold base has a molding cavity.

[0016] Beneficial effects

[0017] This utility model provides a multi-injection mold for one-time molding of long, narrow small household appliance panels. Compared with the prior art, it has the following advantages:

[0018] 1. In this application, when the moving mold base moves down along the guide rod to close the mold, the push frame is pressed and drives the sealing plug to move up, so that the lubricant in the groove of the sealing plug flows into the lubrication port through the guide port. After the injection molding is completed and the moving mold base moves up, the sealing plug is reset under the action of the return spring. The guide port and the lubrication port are staggered to block the supply of liquid and avoid the leakage and waste of lubricant. When the sleeve slides, the lubricant in the lubrication port is evenly attached to the surface of the guide rod. There is no need for frequent manual addition. This can ensure the continuous lubrication of the guide rod and the sleeve, reduce friction and wear, and realize on-demand supply of liquid, reducing the consumption of lubricant.

[0019] 2. In this application, when the moving mold base moves down to close the mold, the pressure ring is compressed, causing the compression spring to contract. The spring force effectively buffers the mold closing process, reducing the impact between the moving mold base and the fixed mold base. At the same time, the sensor on the pressure ring synchronously detects the force. By comparing the force data of each sensor, it can be determined whether the movement of the moving mold base remains vertical and stable. If a deviation occurs, an early warning and adjustment can be made in time to avoid abnormal friction and wear between the guide rod and the sleeve due to the tilt of the moving mold base, thereby ensuring the stability of mold guiding accuracy and molding quality. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic cross-sectional view of the lubrication component of this utility model.

[0022] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0023] Figure 4 This is a schematic diagram of the fixed mold base structure of this utility model.

[0024] Figure 5 This is a schematic diagram of the detection component structure of this utility model.

[0025] In the diagram: 1. Fixed mold base; 11. Moving mold base; 12. Injection port; 13. Guide rod; 14. Molding cavity; 2. Guiding mechanism; 21. Lubrication assembly; 211. Sleeve; 2111. Liquid inlet; 212. Storage tank; 2121. Liquid inlet pipe; 2122. Conveying port; 213. Push frame; 214. Sealing plug; 2141. Guide port; 215. Return spring; 216. Lubrication port; 22. Detection assembly; 221. Compression spring; 222. Pressure ring; 223. Sensor. Detailed Implementation

[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 Figure 1-5 This utility model provides a technical solution: a multi-injection molding die for long strip-shaped small household appliance panels, including a fixed mold base 1, a plurality of evenly distributed guide rods 13 fixedly installed on the upper outer side of the fixed mold base 1, a movable mold base 11 provided on the upper part of the guide rods 13, and a guide mechanism 2 provided on the upper part of the movable mold base 11, the guide mechanism 2 including:

[0028] The lubrication assembly 21 includes multiple sleeves 211 fixedly installed on the upper part of the moving mold base 11. During injection molding, the moving mold base 11 is moved by a pushing mechanism, allowing the sleeves 211 to slide along the guide rod 13, thus guiding the movement of the moving mold base 11. The multiple sleeves 211 are slidably fitted onto the outer side of the guide rod 13. A storage box 212 is fixedly installed in the middle of each sleeve 211. The storage box 212 stores lubricating oil for the movement of the sleeves 211 and the guide rod 13. Multiple evenly spaced openings are formed on the inner side of each storage box 212. The multiple sleeves 211 are provided with multiple evenly distributed liquid inlets 2111 on their outer sides. These liquid inlets 2111 are aligned with the delivery ports 2122, and their opening sizes are the same. Each sleeve 211 has a slidingly fitted sealing plug 214 at its lower part. This sealing plug 214 has a U-shaped structure, with its flat surface located on the inner side of the sleeve 211 and its concave surface located near the storage tank 212. This allows the lubricating fluid in the storage tank 212 to pass through the liquid inlets 2111 and into the delivery port 2122. The feed port 2122 enters the groove. Multiple evenly distributed guide ports 2141 are provided on the middle of one side of the sealing plug 214. Pushing frames 213 slide through the lower parts of multiple sleeves 211. The tops of the multiple pushing frames 213 are fixedly installed at the middle of the bottom end of the sealing plug 214. When the moving mold base 11 moves downwards and contacts the pressure ring 222, causing compression, the pushing frames 213 can retract upwards. When retracted to the top, the fixed mold base 1 and the moving mold base 11 are completely closed, and the guide ports 2141 are in contact with the lubricating... The ports 216 are aligned with each other, allowing the lubricant in the groove to enter the lubrication port 216. When the injection molding is completed, the moving mold base 11 moves upward, which allows the sealing plug 214 to move downward and reset under the force of the return spring 215, so that the guide port 2141 and the lubrication port 216 are no longer aligned, thus ensuring that the lubricant will not leak. The lubricant in the lubrication port 216 can adhere to the guide rod 13 as the sleeve 211 slides on the upper part of the guide rod 13, thereby achieving the self-lubricating effect of the guide rod 13.

[0029] The detection component 22 is located on the upper part of the fixed mold base 1 and is used to buffer the fixed mold base 1.

[0030] The detection component 22 includes multiple compression springs 221 fixedly installed on the upper part of the fixed mold base 1. Each compression spring 221 has a pressure ring 222 fixedly installed at its top end. Each pressure ring 222 has a sensor 223 fixedly installed in the middle. The sensor 223 is distributed at multiple points on the pressure ring 222. When the moving mold base 11 moves downward and presses against the pressure ring 222, the compression springs 221 are compressed and move downward, which can buffer the moving mold base 11. At this time, the sensor 223 senses the pressure and detects whether the force on the pressure ring 222 is uniform, which is used to determine whether the up and down movement of the moving mold base 11 is normal and maintains vertical movement, thus avoiding wear on the guide rod 13.

[0031] A liquid inlet pipe 2121 is fixedly installed on the upper side of the storage tank 212. Multiple liquid inlet pipes 2121 are interconnected with the storage tank 212. The liquid inlet pipes 2121 can be used to conveniently replenish the lubricant in the storage tank 212. At the same time, the upper part of the liquid inlet pipe 2121 is sealed at its end by a threaded cap.

[0032] A return spring 215 is fixedly installed at the top center of the sealing plug 214. The tops of multiple return springs 215 are fixedly installed at the middle of the sleeve 211. Under the action of the return spring 215, when the push frame 213 is no longer in contact with the pressure ring 222, the sealing plug 214 moves downward, so that its guide port 2141 is no longer aligned with the lubrication port 216. The guide rod 13 is lubricated only by the lubricating fluid stored in the lubrication port 216, avoiding excessive lubrication and waste of lubricating fluid, and at the same time avoiding leakage of lubricating fluid.

[0033] Multiple sleeves 211 have multiple evenly distributed lubrication ports 216 on their inner sides. The multiple lubrication ports 216 are used in conjunction with the guide port 2141. The lubrication ports 216 are used to store lubricating fluid for lubrication of the contact surface between the sleeve 211 and the guide rod 13 when the sleeve 211 moves.

[0034] The upper part of the moving mold base 11 is provided with multiple injection ports 12, and the middle part of the fixed mold base 1 is provided with a molding cavity 14. The multiple injection ports 12 can be used for batch or simultaneous injection molding. According to the molding requirements of long strip-shaped small household appliance panels, the raw materials are injected into the molding cavity 14.

[0035] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0036] During operation, when injection molding is in progress, the pushing mechanism drives the moving mold base 11 to move downward along the guide rod 13. At this time, the sleeve 211 slides synchronously along the guide rod 13 with the moving mold base 11, thus guiding the movement of the moving mold base 11. When the moving mold base 11 moves down to contact the pressure ring 222 and generates compression, the pushing frame 213 is compressed and retracts upward, driving the sealing plug 214 to move upward against the elastic force of the return spring 215. When the moving mold base 11 and the fixed mold base 1 are completely closed, the sealing plug 214 moves to the top. At this time, the guide port 2141 on the sealing plug 214 is aligned with the lubrication port 216 on the inner side of the sleeve 211.

[0037] The lubricant in the storage tank 212 flows into the groove of the sealing plug 214 through the delivery port 2122 and the liquid inlet 2111, and then enters the lubrication port 216 for storage through the aligned guide port 2141. At the same time, the pressure ring 222 is compressed, causing the compression spring 221 to contract, thereby buffering the mold closing process. The sensor 223 in the middle of the pressure ring 222 detects the pressure, and the force data of each sensor 223 is used to determine whether the movement of the moving mold base 11 is vertical and stable, so as to avoid abnormal wear of the guide rod 13 due to deviation.

[0038] After injection molding is completed, the moving mold base 11 moves upward, the push frame 213 disengages from the pressure ring 222, and under the action of the return spring 215, the sealing plug 214 returns to its original position downward, the guide port 2141 and the lubrication port 216 are misaligned, the supply of lubricating fluid is stopped, and leakage can be prevented. During the upward movement of the moving mold base 11, the sleeve 211 slides along the guide rod 13, and the lubricating fluid stored in the lubrication port 216 is evenly attached to the surface of the guide rod 13 to achieve a self-lubricating effect.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] 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. A multi-injection mold for one-time molding of long strip-shaped small household appliance panels, comprising a fixed mold base (1), characterized in that: Multiple evenly distributed guide rods (13) are fixedly installed on the upper outer side of the fixed mold base (1). A moving mold base (11) is provided on the upper part of the guide rods (13), and a guide mechanism (2) is provided on the upper part of the moving mold base (11). The guide mechanism (2) includes: The lubrication assembly (21) includes multiple sleeves (211) fixedly installed on the upper part of the moving mold base (11). Each sleeve (211) is slidably fitted onto the outside of the guide rod (13). A storage tank (212) is fixedly installed in the middle of each sleeve (211). Multiple evenly distributed delivery ports (2122) are opened on the inner side of each storage tank (212), and multiple evenly distributed liquid inlets (2122) are opened on the outer side of each sleeve (211). 11) Multiple liquid inlets (2111) and delivery ports (2122) are aligned with each other. The lower part of multiple sleeves (211) is slidably fitted with sealing plugs (214). Multiple evenly distributed guide ports (2141) are opened in the middle of one side of each sealing plug (214). Multiple sleeves (211) are slidably fitted with pushers (213) in the lower part. The top of multiple pushers (213) is fixedly installed in the middle of the bottom end of the sealing plug (214). The detection component (22) is located on the upper part of the fixed mold base (1) and is used to buffer the fixed mold base (1).

2. The multi-injection molding die for elongated small household appliance panels according to claim 1, characterized in that: The detection component (22) includes multiple compression springs (221) fixedly installed on the upper part of the fixed mold base (1). Each compression spring (221) has a pressure ring (222) fixedly installed at its top end, and each pressure ring (222) has a sensor (223) fixedly installed in the middle.

3. The multi-injection molding die for elongated small household appliance panels according to claim 1, characterized in that: A liquid inlet pipe (2121) is fixedly installed on one side of the upper part of the storage tank (212), and multiple liquid inlet pipes (2121) are interconnected with the storage tank (212).

4. The multi-injection molding die for elongated small household appliance panels according to claim 1, characterized in that: A return spring (215) is fixedly installed at the top center of the sealing plug (214), and the tops of multiple return springs (215) are fixedly installed at the center of the sleeve (211).

5. The multi-injection molding die for elongated small household appliance panels according to claim 1, characterized in that: Multiple uniformly distributed lubrication ports (216) are provided on the inner side of each of the multiple sleeves (211), and the multiple lubrication ports (216) are used in conjunction with the guide port (2141).

6. The multi-injection molding die for elongated small household appliance panels according to claim 1, characterized in that: The upper part of the moving mold base (11) is provided with multiple injection ports (12), and the middle part of the fixed mold base (1) is provided with a molding cavity (14).

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