Side leakage scraping mechanism for building block toy injection mold

Abstract

The utility model relates to a building block toy injection mold side leakage scraping mechanism which comprises a scraping plate, an air cylinder, a rebounding assembly, a connecting plate and a fixing plate, the scraping plate is installed at the output end of the air cylinder, the tail of the air cylinder is hinged to the connecting plate, the side face of the air cylinder is connected with the side face of the connecting plate through the rebounding assembly, and the connecting plate is installed on the side face of the fixing plate. The fixing plate is provided with an inclined plane on one side of the connecting plate, and the inclined plane is provided with a counterbore. The inclined surface of the fixed plate is mounted on the side surface of injection molding equipment, the scraping plate points to the mold closing end surface of an injection mold, and the scraping plate can be obliquely inserted into a mold closing area under the pushing of the air cylinder and performs oblique scraping on the mold closing end surface of the mold; after the scraping plate is in contact with the closed end face of the die, the air cylinder continues to be pushed out so that the scraping plate can rotate along with the air cylinder, meanwhile, the springback assembly located between the air cylinder and the connecting plate is compressed, under the counter-acting force of the springback assembly, the front end of the scraping plate always obliquely abuts against the closed end face of the die, and smooth development of scraping operation is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to a side leakage scraping mechanism for an injection mold of a building block toy. Background Art

[0002] Building block toys are typically solid plastic toys that can be arranged in various ways to form a variety of architectural forms. They play a significant role in children's intellectual development and are also a way to improve their hand-eye coordination. Building block toys are typically produced using injection molding. Injection-molded building block toys are precise in size and have few defects, thanks to the high-pressure clamping of the injection mold. However, after prolonged use, injection molds and components such as the bolts that connect them will wear and deform, affecting the sealing and stability of the mold clamping. This can lead to plastic leakage from the mold. If the leaking plastic is not removed promptly, it will affect the mold clamping, resulting in excess plastic burrs on the building block toys and increasing the volume and scope of the plastic leakage. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a side leakage scraping mechanism for a building block toy injection mold, which realizes the scraping of side leakage plastic, freeing up manpower, improving work efficiency, and ensuring employee safety.

[0004] The technical solution of the utility model is: a side leakage scraping mechanism for a building block toy injection mold, comprising a scraper plate, a cylinder, a rebound component, a connecting plate and a fixed plate, wherein the scraper plate is installed at the output end of the cylinder, the tail of the cylinder is hinged to the connecting plate, the side surface of the cylinder is connected to the side surface of the connecting plate through the rebound component, the connecting plate is installed on the side surface of the fixed plate, and the fixed plate is provided with an inclined surface on one side of the connecting plate, and a countersunk hole is provided on the inclined surface.

[0005] Furthermore, the angle between the inclined surface and the side surface of the fixing plate is 1-2 degrees.

[0006] Furthermore, one end of the scraper plate is a sharp portion, and the other end is an assembly portion, and the assembly portion is connected to the output end of the cylinder.

[0007] Furthermore, it also includes an adapter plate, one end of which is connected to the output end of the cylinder, and the side of the adapter plate is connected to the scraper plate. A first threaded hole is provided on the side of the adapter plate, and a distance adjusting screw is threadedly connected to the first threaded hole. One end of the distance adjusting screw can abut the side of the scraper plate.

[0008] Furthermore, it also includes a rotating plate, the cylinder is installed on the side of the rotating plate, one end of the rotating plate is hinged to the connecting plate, and the side of the rotating plate is connected to the side of the connecting plate through a rebound component.

[0009] Furthermore, the rebound assembly includes a spring and a guide screw. A second threaded hole is provided on the connecting plate. The guide screw is threadedly connected to the second threaded hole. The front end of the guide screw is a cylinder. The spring is sleeved on the cylinder. The two ends of the spring are respectively connected to the rotating plate and the connecting plate.

[0010] Furthermore, a limiting rod is provided on the connecting plate, one end of the limiting rod extends to the side of the cylinder, and the limiting rod can abut against the cylinder.

[0011] Furthermore, a guide cylinder is provided on the side of the rotating plate, and the spring is located in the guide cylinder.

[0012] Furthermore, there are two fixed plates and they are mirror-imaged, the two fixed plates are connected by bolts, and the scraper plate, adapter plate, cylinder, rotating plate, rebound assembly, limit rod and connecting plate are mirror-imaged on the two fixed plates.

[0013] Furthermore, one of the two fixing plates is provided with a guide column, and the other is provided with a guide hole, and the guide column is slidably connected to the guide hole.

[0014] Compared with the prior art, the advantages of the present invention are: the inclined surface of the fixed plate is installed on the side of the injection molding equipment, and the scraper plate points to the end face of the injection mold clamping. Under the push of the cylinder, the scraper plate can be inserted obliquely into the clamping area, and the scraper plate performs oblique scraping on the end face of the mold clamping; after the scraper plate contacts the end face of the mold clamping, the cylinder continues to push out to make the scraper plate rotate with the cylinder, and at the same time compress the rebound component located between the cylinder and the connecting plate. Under the reaction force of the rebound component, the front end of the scraper plate always presses obliquely against the end face of the mold clamping, ensuring the smooth progress of the scraping operation; after the scraping operation is completed, under the reaction force of the rebound component, the scraper plate slides out along the end face of the mold clamping to achieve automatic reset; by installing this device, while freeing up manpower and improving work efficiency, it can also ensure employee safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a structural diagram of the front side of the utility model;

[0017] Figure 2 It is a structural diagram of the back of the utility model;

[0018] Figure 3This is an exploded view of the elastic return structure of the present utility model.

[0019] Among them: 1. Fixed plate; 101. Countersunk hole; 102. Inclined surface; 2. Guide post; 3. Guide hole; 4. Bolt; 5. Connecting plate; 501. Second threaded hole; 6. Rotating plate; 601. Guide cylinder; 7. Cylinder; 8. Limit rod; 9. Adapter plate; 901. First threaded hole; 10. Spacing adjustment screw; 11. Scraping plate; 12. Guide screw; 1201. Cylinder; 13. Spring. Specific embodiments

[0020] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined invention purpose, the following combines the accompanying drawings and preferred embodiments to detail the specific embodiments, structures, features and their effects of the present utility model as follows.

[0021] As Figures 1-3 shown, a side leakage scraping mechanism for a building block toy injection mold includes a scraping plate 11, a cylinder 7, a spring return assembly, a connecting plate 5 and a fixed plate 1. The scraping plate 11 is installed at the output end of the cylinder 7. The tail of the cylinder 7 is hinged to the connecting plate 5. The side of the cylinder 7 is connected to the side of the connecting plate 5 through the spring return assembly. The connecting plate 5 is installed on the side of the fixed plate 1. The fixed plate 1 is provided with an inclined surface 102 on one side of the connecting plate 5, and a countersunk hole 101 is provided on the inclined surface 102. The inclined surface 102 of the fixed plate 1 is installed on the side of the injection molding equipment. The scraping plate 11 is located on the side of the injection mold. The scraping plate 11 points to the end face of the injection mold when it is closed. Under the push of the cylinder 7, the scraping plate 11 obliquely inserts into the closing area. The scraping plate 11 performs oblique scraping on the end face of the closed mold. At this time, since the tail of the cylinder 7 is hinged to the connecting plate 5, after the scraping plate 11 contacts the end face of the closed mold, as the cylinder 7 continues to push out, the scraping plate 11 rotates with the cylinder 7, and at the same time compresses the spring return assembly located between the cylinder 7 and the connecting plate 5. Under the reaction force of the spring return assembly, the front end of the scraping plate 11 is always obliquely pressed against the end face of the closed mold to ensure the smooth progress of the scraping operation. After the scraping operation is completed, under the reaction force of the spring return assembly, the scraping plate 11 slides out along the end face of the closed mold to achieve automatic reset.

[0022] In the above embodiment, the included angle between the inclined surface 102 and the side surface of the fixed plate 1 is 1 - 2 degrees. Using a small included angle can not only make the scraping plate 11 obliquely scrape off the leaked material, but also avoid wear caused by too large an angle. One end of the scraping plate 11 is a sharp part for shoveling stubborn leaked material, and the other end is an assembly part, and the assembly part is connected to the output end of the cylinder 7, and the scraping plate 11 with a suitable length can be replaced according to the size of the injection mold.

[0023] The device further includes an adapter plate 9. One end of the adapter plate 9 is connected to the output end of the cylinder 7, and the side of the adapter plate 9 is connected to the scraping plate 11. A first threaded hole 901 is provided on the side of the adapter plate 9, and an adjusting screw 10 is threadedly connected in the first threaded hole 901. One end of the adjusting screw 10 can abut against the side of the scraping plate 11. By adjusting the assembly depth of the adjusting screw 10, the distance between the scraping plate 11 and the adapter plate 9 can be adjusted, thereby adjusting the position of the scraping plate 11 relative to the injection mold to ensure the normal progress of the scraping operation. The device further includes a rotating plate 6 for transitional connection. The cylinder 7 is installed on the side of the rotating plate 6. One end of the rotating plate 6 is hinged to the connecting plate 5, and the side of the rotating plate 6 and the side of the connecting plate 5 are connected by a resilient member assembly.

[0024] In the above embodiment, the resilient member assembly includes a spring 13 and a guiding screw 12. A second threaded hole 501 is provided on the connecting plate 5, and the guiding screw 12 is threadedly connected in the second threaded hole 501. The front end of the guiding screw 12 is a cylinder 1201, and the spring 13 is sleeved on the cylinder 1201 to prevent the spring 13 from being distorted and failing. Both ends of the spring 13 are respectively connected to the rotating plate 6 and the connecting plate 5, so that the rotating plate 6 and the connecting plate 5 maintain an almost parallel initial state. When the scraping plate 11 slides along the end face of the mold during mold closing for scraping, the spring 13 is gradually compressed, and the reaction force of the spring 13 presses the front end of the scraping plate 11 against the end face of the mold during mold closing to ensure the normal progress of the scraping operation. A limiting rod 8 is provided on the connecting plate 5. One end of the limiting rod 8 extends to the side of the cylinder 7. Under the reaction force of the spring 13, the limiting rod 8 can hook and abut against the cylinder 7, and the spring 13 does not need to be welded and fixed, and can be directly sleeved on the cylinder 1201. A guiding cylinder 601 is provided on the side of the rotating plate 6, and the spring 13 is located inside the guiding cylinder 601 to prevent the spring 13 from slipping out of the cylinder 1201 without welding and fixing.

[0025] When scraping the leakage of the injection mold, two mirror-image fixed plates 1 can be used. The two fixed plates 1 are connected by bolts 4. The scraping plate 11, the adapter plate 9, the cylinder 7, the rotating plate 6, the resilient member assembly, the limiting rod 8 and the connecting plate 5 are mirror-image arranged on the two fixed plates 1, and can simultaneously scrape the end faces of the mold closing on both sides of the punch forming table in the injection mold, reducing the repeated installation of the device. By respectively arranging a set of this device in the horizontal and vertical directions, the leakage scraping of the end faces of the mold closing around the forming table can be realized. One of the two fixed plates 1 is provided with a guiding column 2, and the other is provided with a guiding hole 3. The guiding column 2 is slidably connected to the guiding hole 3, providing guiding and auxiliary force for the connection of the two fixed plates 1, and at the same time, the distance between the two fixed plates 1 can be adjusted to adapt to punch forming tables of different sizes.

[0026] Description of the working mode of the present utility model:

[0027] Install the inclined surface 102 of the fixing plate 1 of the device on the side of the injection molding equipment. The scraping plate 11 is located on the side of the injection mold, and the scraping plate 11 points to the end face where the injection mold is closed. When there is side leakage during the injection molding process of the building block toy injection mold, the air cylinder 7 pushes the scraping plate 11 to obliquely insert into the closing area. The scraping plate 11 scrapes obliquely on the end face of the mold when it is closed, scraping off the leaked material to ensure the normal progress of mold closing and injection molding. During the scraping process, since the tail of the rotating plate 6 is hinged to the connecting plate 5, after the sharp part of the scraping plate 11 contacts the end face of the closed mold, as the air cylinder 7 continues to push out, the scraping plate 11 rotates along with the rotating plate 6, and at the same time compresses the spring 13 located between the rotating plate 6 and the connecting plate 5. Under the reaction force of the spring 13, the front end of the scraping plate 11 always obliquely abuts against the end face of the closed mold to ensure the smooth progress of the scraping operation. After the scraping operation is completed, under the reaction force of the spring 13, the scraping plate 11 slides out along the end face of the closed mold to achieve automatic reset. During the actual injection molding process of building block toys, since side leakage may occur on each side of the mold forming table, a complete set of devices composed of two fixing plates 1 and supporting components is required. By respectively arranging a set of this device in the horizontal and vertical reverse directions, and then through the sequential pushing out order of the air cylinder 7, alternate scraping in the horizontal and vertical reverse directions is realized to ensure that there is no residual leaked material around the mold forming table and ensure the normal progress of mold closing. By installing this device and electrically connecting it to the injection molding equipment, point-by-point or automatic scraping can be realized, liberating human labor, improving work efficiency, and ensuring the safety of employees.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A side leakage scraping mechanism for an injection mold of a building block toy, comprising a scraping plate, a cylinder, a rebound assembly, a connecting plate and a fixing plate, characterized in that: The scraping plate is installed at the output end of the cylinder. The tail of the cylinder is hinged to the connecting plate, and the side of the cylinder is connected to the side of the connecting plate through a resilient component. The connecting plate is installed on the side of the fixed plate. The fixed plate is provided with an inclined surface on one side of the connecting plate, and a countersunk hole is provided on the inclined surface.

2. The side leakage scraping mechanism of the building block toy injection mold according to claim 1, characterized in that: The included angle between the inclined surface and the side surface of the fixed plate is 1-2 degrees.

3. The side leakage scraping mechanism of the building block toy injection mold according to claim 1, characterized in that: One end of the scraping plate is a sharp part, and the other end is an assembly part, and the assembly part is connected to the output end of the cylinder.

4. The side leakage scraping mechanism of the building block toy injection mold according to claim 1, characterized in that: It further includes an adapter plate. One end of the adapter plate is connected to the output end of the cylinder. The side of the adapter plate is connected to the scraping plate. The side of the adapter plate is provided with a first threaded hole, and an adjusting screw is threadedly connected in the first threaded hole. One end of the adjusting screw can abut against the side surface of the scraping plate.

5. The side leakage scraping mechanism of the building block toy injection mold according to claim 4, characterized in that: It further includes a rotating plate. The cylinder is installed on the side of the rotating plate. One end of the rotating plate is hinged to the connecting plate, and the side of the rotating plate is connected to the side of the connecting plate through a resilient component.

6. The side leakage scraping mechanism of the building block toy injection mold according to claim 5, characterized in that: The resilient component includes a spring and a guiding screw. The connecting plate is provided with a second threaded hole, and the guiding screw is threadedly connected in the second threaded hole. The front end of the guiding screw is a cylinder, and the spring is sleeved on the cylinder. The two ends of the spring are respectively connected to the rotating plate and the connecting plate.

7. The side leakage scraping mechanism of the building block toy injection mold according to claim 6, characterized in that: A limiting rod is provided on the connecting plate. One end of the limiting rod extends to the side of the cylinder, and the limiting rod can abut against the cylinder.

8. The side leakage scraping mechanism of the building block toy injection mold according to claim 6, characterized in that: A guiding cylinder is provided on the side of the rotating plate, and the spring is located inside the guiding cylinder.

9. The side leakage scraping mechanism of the building block toy injection mold according to claim 7, characterized in that: There are two fixed plates and they are arranged in a mirror image. The two fixed plates are connected by bolts. The scraping plate, the adapter plate, the cylinder, the rotating plate, the resilient component, the limiting rod and the connecting plate are arranged in a mirror image on the two fixed plates.

10. The side leakage scraping mechanism of the building block toy injection mold according to claim 9, characterized in that: One of the two fixed plates is provided with a guiding post, and the other is provided with a guiding hole, and the guiding post is slidably connected to the guiding hole.

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