Straight-ejection multi-point glue feeding structure of injection mold

Abstract

The utility model provides a straight top multi-point glue feeding structure of an injection mold, which comprises an equipment body, a partition plate fixedly connected in the equipment body, an electric push rod arranged in the equipment body and opposite to the partition plate, a glue injection mechanism fixedly connected on the electric push rod, a plurality of glue injection guns communicated on the glue injection mechanism, and fixed cylinders arranged on the partition plate and opposite to the glue injection guns in a one-to-one correspondence manner, a channel is formed in the fixing cylinder in a penetrating mode, a mold is arranged in the device body and right opposite to the through hole, a straight ejection mechanism for driving the mold to move relative to the through hole and two sets of scraper mechanisms are arranged on the device body, the scraper mechanisms are arranged on the inner wall of the fixing cylinder in an up-down moving mode, each scraper mechanism is composed of two rubber scrapers which are oppositely arranged, and the rubber scrapers of the two sets of scraper mechanisms are arranged in a staggered mode. The rubber scraper is movably connected with the inner wall of the fixing sleeve through a supporting ring, and a first guiding groove extending downwards is formed in the inner wall of the fixing cylinder along the supporting ring. The direct-ejection multi-point glue feeding structure of the injection mold can play a role in cleaning residual glue on a glue injection gun.

Description

Technical Field

[0001] The utility model relates to the technical field of glue feeding structures, and more specifically, to a direct top multi-point glue feeding structure for an injection mold. Background Technique

[0002] Molds are various dies and tools used in industrial production for injection molding, blow molding, extrusion, die casting, forging, smelting, stamping, etc. to obtain the required products. Simply put, a mold is a tool for shaping objects. This tool consists of various parts, and different molds are composed of different parts. It mainly realizes the processing of the outer shape of objects by changing the physical state of the shaped material. However, when the existing molds are used for injection molding of grid-shaped or large molds, single-point glue feeding will cause uneven glue feeding of the mold core during injection molding, and the temperature during the glue feeding process will also affect the quality of injection molding, making the injection-molded products prone to defects and having a low yield rate.

[0003] Regarding the above technical problems that when the existing molds are used for injection molding of grid-shaped or large molds, single-point glue feeding will cause uneven glue feeding of the mold core during injection molding, and the temperature during the glue feeding process will also affect the quality of injection molding, making the injection-molded products prone to defects and having a low yield rate. After a large amount of retrieval and query, a direct top multi-point glue feeding structure for an injection mold with the patent publication number of CN215151522U was found, which belongs to the technical field of glue feeding structures. When feeding glue, the heating device and the hot runner device work to keep the temperature of the glue entering the cavity stable, and the utility model is provided with multiple glue feeding pipes to make the injection molding more uniform.

[0004] However, there are still some problems in the above direct top multi-point glue feeding structure for an injection mold. For example: after the glue feeding pipe finishes injecting glue into the lower mold, some glue will adhere to the glue outlet of the glue feeding pipe when it detaches from the lower mold, and long-term accumulation is likely to affect the subsequent glue injection work of the mold. In view of the above problems, the utility model proposes a direct top multi-point glue feeding structure for an injection mold. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the technical problems proposed in the above background technique, and provide a direct top multi-point glue feeding structure for an injection mold.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a straight top multi-point glue feeding structure of an injection mold, comprising a device body, a partition fixedly connected to the inside of the device body, an electric push rod provided inside the device body facing the partition, a glue injection mechanism fixedly connected to the telescopic end of the electric push rod, a plurality of glue injection guns arranged toward the partition are connected to the glue injection mechanism, a fixed cylinder is fixedly connected to the partition facing the glue injection gun in a one-to-one correspondence, a channel is penetrated on the fixed cylinder, a through hole connected to the channel is penetrated on the partition, and the device A mold is provided in the main body opposite to the through hole, and a straight top mechanism for driving the mold to move relative to the through hole is provided on the equipment body, and two groups of scraper mechanisms are movably arranged on the inner wall of the fixed cylinder. The scraper mechanism is composed of two oppositely arranged rubber scrapers, and the rubber scrapers of the two groups of scraper mechanisms are staggered. The rubber scrapers are movably connected to the inner wall of the fixed cylinder through a support ring, and a first guide groove extending downward is provided on the inner wall of the fixed cylinder along the support ring, and a discharge port connected to the first guide groove is provided through the fixed cylinder.

[0007] A further preferred solution: the rubber scraper and the support ring are both arc-shaped structures.

[0008] A further preferred solution is that a scraping end is integrally formed on one end of the rubber scraper away from the support ring.

[0009] A further preferred solution is that the rubber scraper and the bottom of the scraping end are provided with a second guide groove extending toward the support ring.

[0010] A further preferred solution is that a collecting trough is fixedly connected between the support ring and the rubber scraper, and the collecting trough has a trough body connected to the second guide groove.

[0011] A further preferred solution is that a material storage trough is sleeved on and fixedly connected to the outer wall of the fixed cylinder, and the material storage trough is located at the bottom of the discharge port.

[0012] Beneficial effects:

[0013] 1. By providing a rubber scraper and a support ring, multiple relatively staggered rubber scrapers follow the movement of the glue gun to make a bending motion to scrape the glue on the glue gun and finally discharge it through the first guide groove, avoiding the accumulation of glue that affects the accuracy and stability of glue injection;

[0014] 2. The scraper end with a slightly larger hardness is provided to facilitate scraping off the colloid on the glue injection gun;

[0015] 3. By providing a second guiding groove, a collecting groove, and a groove body, the setting of the second guiding groove facilitates guiding the colloid on the rubber squeegee to flow along the second guiding groove into the groove body. When the rubber squeegee is bent downward, the collecting groove is inclined downward, enabling the colloid in the groove body to be discharged along the outer wall of the collecting groove onto the inner wall of the fixed cylinder and flow along the first guiding groove, thereby improving the efficiency of collecting the residual colloid. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0017] Figure 2 For the present utility model Figure 1 It is an enlarged schematic diagram of part A in the present utility model.

[0018] Figure 3 It is a schematic diagram of the structure of the fixed cylinder and the discharge port of the present utility model.

[0019] Figure 4 It is a schematic diagram of the internal structure of the fixed cylinder of the present utility model.

[0020] Figure 5 For the present utility model Figure 4 It is a schematic diagram of the structure from another perspective.

[0021] Figure 6 It is a schematic diagram of the structure of the groove body and the collecting groove of the present utility model.

[0022] Figures 1-6 In the figure: 1. Equipment body; 2. Glue injection mechanism; 3. Glue injection gun; 4. Electric push rod; 5. Mold; 6. Direct top mechanism; 7. Fixed cylinder; 8. Partition board; 9. Groove body; 10. Through hole; 11. Storage tank; 12. First guiding groove; 13. Support ring; 14. Rubber squeegee; 15. Scraping end; 16. Collecting groove; 17. Discharge port; 18. Second guiding groove; 19. Channel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Figures 1-6 For a clear and complete description of the technical solutions in the embodiments of the present utility model.

[0024] Please refer to Figures 1-6, in the embodiment of the present utility model, a direct top multi-point glue injection structure of an injection mold 5 includes an equipment body 1, inside which a partition plate 8 is fixedly connected. An electric push rod 4 is provided opposite to the partition plate 8 inside the equipment body 1. The telescopic end of the electric push rod 4 is fixedly connected with a glue injection mechanism 2. A plurality of glue injection guns 3 are communicated on the glue injection mechanism 2 and are arranged towards the partition plate 8. Opposite to the glue injection guns 3 on the partition plate 8, fixing cylinders 7 are fixedly connected one by one. A channel 19 is provided through the fixing cylinder 7, and a through hole 10 communicated with the channel 19 is provided through the partition plate 8. A mold 5 is provided opposite to the through hole 10 inside the equipment body 1. A direct top mechanism 6 for driving the mold 5 to move relative to the through hole 10 is provided on the equipment body 1. Two sets of scraping mechanisms are arranged to move up and down on the inner wall of the fixing cylinder 7. The scraping mechanism is composed of two relatively arranged rubber scraping plates 14. The rubber scraping plates 14 of the two sets of scraping mechanisms are arranged in a staggered manner. The rubber scraping plates 14 are movably connected with the inner wall of the fixing cylinder 7 through a support ring 13. A first guiding groove 12 extending downward is formed along the support ring 13 on the inner wall of the fixing cylinder 7. A discharge port 17 communicated with the first guiding groove 12 is provided through the fixing cylinder 7.

[0025] Specifically, the electric push rod 4 pushes the glue injection mechanism 2 to move towards the partition plate 8, so that a plurality of glue injection guns 3 on the glue injection mechanism 2 are respectively aligned with the channels 19 and through holes 10 of the fixing cylinders 7 on the partition plate 8. The glue material is distributed to each glue injection gun 3 through the glue injection mechanism 2, and then is injected into the mold 5 provided opposite to the through hole 10 inside the equipment body 1 through the channels 19 on the fixing cylinders 7 and the through holes 10 on the partition plate 8. During the glue injection process or after the glue injection is completed, the two sets of scraping mechanisms move up and down on the inner wall of the fixing cylinder 7. Since the rubber scraping plates 14 of the two sets of scraping mechanisms are arranged in a staggered manner, when the rubber scraping plates 14 move up and down, the outer wall of the glue injection gun 3 can be cleaned more comprehensively, and the glue adhered to the glue injection gun 3 can be scraped off. At the same time, when the glue injection gun 3 drives the rubber scraping plate 14 to move downward, the rubber scraping plate 14 will move towards the inner wall of the fixing cylinder 7 and fit the inner wall of the fixing cylinder 7, so that the glue material flows along the first guiding groove 12 extending downward on the inner wall of the fixing cylinder 7. The first guiding groove 12 is communicated with the discharge port 17 on the fixing cylinder 7, and the glue material finally discharges through the discharge port 17. When the injection molding is completed, the direct top mechanism 6 on the equipment body 1 drives the mold 5 to move relative to the through hole 10, and takes out the injection molded product from the mold 5. The overall structure is simple to operate. The residual glue on the glue injection gun 3 can be effectively cleaned by multiple staggered rubber scraping plates 14, avoiding the accumulation of glue material affecting the accuracy and stability of glue injection.

[0026] It should be noted that the support ring 13 is an arc-shaped ring structure. When the glue injection gun 3 moves up and down, the rubber scraping plate 14 can follow the glue injection gun 3 to bend along the support ring 13. When the glue injection gun 3 rises, the rubber scraping plate 14 scrapes the colloid on its surface. At the same time, the colloid moves along the inclined surface of the rubber scraping plate 14 towards the support ring 13. When the glue injection gun 3 moves downward, the glue injection gun 3 drives the rubber scraping plate 14 to bend downward and fit against the inner wall of the fixed cylinder 7, so that the colloid on the rubber scraping plate 14 drops onto the first guiding groove 12 and is discharged along the discharge port 17. Secondly, in this embodiment, the thicknesses of the rubber scraping plate 14 and the support ring 13 can be adjusted according to actual situations. At the same time, in order to prevent the colloid in the fixed cylinder 7 from coagulating, a heating mechanism can be added to the outer wall of the fixed cylinder 7; further, in this embodiment, the connection and operation methods of the glue injection mechanism 2 and the direct top mechanism 6 can refer to the patent document of the direct top multi-point feeding structure of an injection mold 5 with the publication number of CN215151522U.

[0027] In the embodiment of the present utility model, as Figure 5 and Figure 6 shown, both the rubber scraping plate 14 and the support ring 13 are arc-shaped structures.

[0028] In the embodiment of the present utility model, as Figure 6 shown, a scraping end 15 is integrally formed at one end of the rubber scraping plate 14 away from the support ring 13. Specifically, the hardness of the scraping end 15 is higher than that of the rubber scraping plate 14, so as to improve the scraping effect of the colloid on the glue injection gun 3.

[0029] In the embodiment of the present utility model, as Figure 6 shown, second guiding grooves 18 extending towards the support ring 13 are formed at the bottoms of the rubber scraping plate 14 and the scraping end 15. Specifically, the setting of the second guiding grooves 18 facilitates guiding the colloid on the rubber scraping plate 14.

[0030] In the embodiment of the present utility model, as Figure 2 、 Figure 5 and Figure 6 shown, a collecting groove 16 is fixedly connected between the support ring 13 and the rubber scraping plate 14. The collecting groove 16 has a groove body 9 communicating with the second guiding grooves 18. Specifically, the colloid flowing along the second guiding grooves 18 is collected in the groove body 9. When the rubber scraping plate 14 bends downward, the collecting groove 16 is inclined downward, so that the colloid in the groove body 9 can be discharged along the outer wall of the collecting groove 16 onto the inner wall of the fixed cylinder 7 and flow along the first guiding groove 12.

[0031] In the embodiment of the present utility model, as Figure 2 、 Figure 3 and Figure 6As shown, a storage tank 11 is sleeved and fixedly connected to the outer wall of the fixed cylinder 7. The storage tank 11 is located at the bottom of the discharge port 17. Specifically, the setting of the storage tank 11 facilitates the collection of the colloid.

[0032] Working principle: The electric push rod 4 pushes the glue injection mechanism 2 to move towards the partition plate 8, so that multiple glue injection guns 3 on the glue injection mechanism 2 are respectively aligned with the channels 19 and through holes 10 of the fixed cylinder 7 on the partition plate 8. The glue material is distributed to each glue injection gun 3 through the glue injection mechanism 2, and then is injected into the mold 5 arranged opposite to the through hole 10 inside the equipment body 1 through the channels 19 on the fixed cylinder 7 and the through holes 10 on the partition plate 8. During or after the glue injection process, the two scraping mechanisms move up and down on the inner wall of the fixed cylinder 7. Since the rubber scrapers 14 of the two scraping mechanisms are arranged in a staggered manner, when the rubber scrapers 14 move up and down, the outer walls of the glue injection guns 3 can be cleaned more comprehensively, and the colloid adhered to the glue injection guns 3 can be scraped off. At the same time, when the glue injection gun 3 drives the rubber scraper 14 to move downward, the rubber scraper 14 will move towards the inner wall of the fixed cylinder 7 and make the collection groove 16 fit the inner wall of the fixed cylinder 7, so that the glue material in the tank body 9 flows along the first guiding groove 12 extending downward along the inner wall of the fixed cylinder 7. The first guiding groove 12 is communicated with the discharge port 17 on the fixed cylinder 7, and the glue material finally discharges into the storage tank 11 through the discharge port 17. After the injection molding is completed, the direct top mechanism 6 on the equipment body 1 drives the mold 5 to move relative to the through hole 10, and takes out the injection molded product from the mold 5. The overall structure is simple to operate. The residual glue material on the glue injection gun 3 can be effectively cleaned by multiple rubber scrapers 14 arranged in a staggered manner, avoiding the accumulation of the glue material from affecting the accuracy and stability of the glue injection.

Claims

1. A direct top multi-point glue injection structure for an injection mold, characterized in that, include: The device body (1) is fixedly connected to a partition (8) inside the device body (1), an electric push rod (4) is provided inside the device body (1) facing the partition (8), a telescopic end of the electric push rod (4) is fixedly connected to a glue injection mechanism (2), the glue injection mechanism (2) is connected to a plurality of glue injection guns (3) arranged toward the partition (8), a fixed cylinder (7) is fixedly connected to the partition (8) facing the glue injection guns (3) in a one-to-one correspondence, a channel (19) is passed through the fixed cylinder (7), a through hole (10) connected to the channel (19) is passed through the partition (8), a mold (5) is provided inside the device body (1) facing the through hole (10), and a straight-lift mechanism (6) for driving the mold (5) to move relative to the through hole (10) is provided on the device body (1); Two groups of scraper mechanisms are movably arranged on the inner wall of the fixed cylinder (7) in an upward and downward manner. The scraper mechanisms are composed of two rubber scrapers (14) arranged opposite to each other. The rubber scrapers (14) of the two groups of scraper mechanisms are staggered. The rubber scrapers (14) are movably connected to the inner wall of the fixed cylinder (7) through a support ring (13). The inner wall of the fixed cylinder (7) is provided with a first guide groove (12) extending downward along the support ring (13). The fixed cylinder (7) is penetrated by a discharge port (17) connected to the first guide groove (12).

2. The direct top multi-point gating structure of an injection mold (5) according to claim 1, wherein: The rubber scraper (14) and the support ring (13) are both arc-shaped structures.

3. The direct-top multi-point glue injection structure of an injection mold (5) according to claim 2, characterized in that: A scraping end (15) is integrally formed on one end of the rubber scraper (14) facing away from the support ring (13).

4. The direct-top multi-point glue injection structure of an injection mold (5) according to claim 3, characterized in that: The bottoms of the rubber scraper (14) and the scraping end (15) are provided with a second guide groove (18) extending in the direction of the support ring (13).

5. The direct-top multi-point gating structure of an injection mold (5) according to claim 4, characterized in that: A collecting trough (16) is fixedly connected between the support ring (13) and the rubber scraper (14), and the collecting trough (16) has a trough body (9) communicating with the second guide groove (18).

6. The direct-top multi-point glue injection structure of an injection mold (5) according to claim 1, characterized in that: A material storage trough (11) is sleeved on and fixedly connected to the outer wall of the fixed cylinder (7), and the material storage trough (11) is located at the bottom of the discharge port (17).

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