Injection molding machine for bicycle pedal with easy demolding

Abstract

The utility model discloses a bicycle pedal injection molding machine convenient to demould, especially relates to bicycle injection molding equipment field, including the protection frame, the protection frame inside one side is provided with the connecting plate, the connecting plate one side both ends symmetry and fixedly set up electric telescopic handle, electric telescopic handle one side all fixedly set up and have the connecting ring, the connecting ring one side all fixedly set up and have the push rod no.

Description

Technical Field

[0001] This utility model relates to the field of bicycle injection molding equipment, and more specifically, to a bicycle pedal injection molding machine that facilitates demolding. Background Technology

[0002] Bicycle pedals, as an important component of bicycles, are typically manufactured using injection molding. During the injection molding process, the pedals need to be demolded from the mold after injection molding, a step that directly impacts production efficiency and product quality. A search revealed an existing patent (publication number: CN221068315U) that discloses an injection-molded rear mudguard for an electric bicycle, including a connecting plate. A mudguard is provided on one side of the connecting plate, and one side of the mudguard is rotatably connected to one side of the connecting plate via a rotating shaft. An adjustment chamber is provided on the inner wall of the connecting plate, and an adjustment mechanism is provided in the inner cavity of the adjustment chamber. By setting an adjustment mechanism, the distance between the tire and the mudguard can be adjusted. Pulling the handle pulls the ratchet plate through the adjustment rope, at which point the ratchet plate separates from the ratchet wheel, allowing the mudguard to rotate. When the distance is appropriate, releasing the handle causes the ratchet plate to engage with the teeth of the ratchet plate due to the spring force, and the ratchet plate is rigidly supported by a limiting plate, thereby preventing the ratchet wheel from rotating and fixing the rotating shaft, thus fixing the mudguard. This allows the user to quickly and conveniently adjust the distance between the mudguard and the tire to adapt to different road conditions.

[0003] The ejection assembly layout of the demolding mechanism of the existing bicycle pedal injection molding machine is unreasonable, resulting in uneven ejection force and a lack of stable guiding and buffering structures, which leads to low demolding efficiency. At the same time, the aforementioned cited patent documents do not propose any solutions to address the above problems. Therefore, a bicycle pedal injection molding machine that facilitates demolding is proposed to address the above problems. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a bicycle pedal injection molding machine that facilitates demolding, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bicycle pedal injection molding machine that facilitates demolding, comprising a protective frame, a connecting plate provided on one side inside the protective frame, electric telescopic rods symmetrically and fixedly provided at both ends of one side of the connecting plate, a connecting ring fixedly provided on one side of each electric telescopic rod, and a push rod II fixedly provided on one side of each connecting ring, and the push rod II is connected through to a moving mold through hole on one side.

[0006] Preferably, a slide rail is provided on one side of the inside of the protective frame, and the slide rail is connected to a mounting base via a fixed base, the mounting base being located on one side of the connecting plate.

[0007] Preferably, a drive motor is welded to one side of the mounting base, and a connecting rod is connected to one side of the drive motor via an output shaft. A push rod is sleeved inside the connecting rod, and the push rod is connected through the moving mold.

[0008] Preferably, a rotary motor is provided on one side of the drive motor, a small gear is connected to one side of the rotary motor via an output shaft, a large gear is meshed on one side of the small gear, and rotary gears are meshed on all four ends of the large gear.

[0009] Preferably, a lead screw is fixedly connected to one side of each rotating gear, a guide sleeve is threadedly connected to one side of each lead screw, the guide sleeve is fixedly connected to the moving mold, and one side of the lead screw is fixedly connected to the stationary mold through a bearing.

[0010] Preferably, a micro motor is provided on one side of the protective frame, and a drive gear is connected to one side of the micro motor via an output shaft. A driven gear is meshed with one side of the drive gear.

[0011] Preferably, a conveying blade is fixedly provided on one side of the driven gear, the conveying blade is located inside the conveying cylinder, a storage cylinder is provided on one side of the upper end of the conveying cylinder, and a discharge groove is provided on one side of the stationary mold.

[0012] The technical effects and advantages of this utility model are as follows: Compared with existing technologies, this easy-to-demold bicycle pedal injection molding machine uses an electric telescopic rod as a power source to connect the connecting ring to the push rod two, allowing the power to be distributed along the layout path of the push rod two, making the pushing force more evenly distributed. This avoids pushing deviation caused by initial power concentration, and the even pushing makes the force on each part of the pedal closer to balance, preventing warping and cracking caused by excessive local force, ensuring product appearance and precision, and reducing the defect rate. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0015] Figure 3 This is an enlarged schematic diagram of the structure at point A of this utility model.

[0016] Figure 4 This is an enlarged schematic diagram of the structure at point B of this utility model.

[0017] The attached diagram is labeled as follows: 1. Protective frame; 2. Drive motor; 3. Large gear; 4. Connecting rod; 5. Push rod one; 6. Rotary motor; 7. Small gear; 8. Rotary gear; 9. Lead screw; 10. Guide sleeve; 11. Mounting base; 12. Connecting plate; 13. Slide rail; 14. Electric telescopic rod; 15. Connecting ring; 16. Push rod two; 17. Moving mold; 18. Stationary mold; 19. Micro motor; 20. Drive gear; 21. Driven gear; 22. Conveying cylinder; 23. Conveying blade; 24. Storage cylinder; 25. Discharge chute. Detailed Implementation

[0018] 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.

[0019] Example 1 As attached Figures 1 to 4 The bicycle pedal injection molding machine shown includes a protective frame 1. A connecting plate 12 is provided on one side inside the protective frame 1. Electric telescopic rods 14 are symmetrically and fixedly provided at both ends of one side of the connecting plate 12. A connecting ring 15 is fixedly provided on one side of each electric telescopic rod 14. A push rod 16 is fixedly provided on one side of each connecting ring 15, and the push rod 16 is connected to the through hole of the moving mold 17 on one side.

[0020] Specifically: a push rod 16 is provided, which passes through the through hole of the moving mold 17 and contacts the formed foot pedal at the end. Driven by the electric telescopic rod 14, the foot pedal is pushed out of the cavity; the push rod is provided for the foot pedal edges, textures and other parts that are prone to sticking, to ensure uniform pushing.

[0021] Example 2 Based on Embodiment 1, the solution in Embodiment 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details: As a preferred embodiment, a slide rail 13 is provided on one side inside the protective frame 1. The slide rail 13 is connected to a mounting base 11 via a fixed base. The mounting base 11 is located on one side of the connecting plate 12. Furthermore, by providing the slide rail 13, a linear trajectory constraint is provided for the movement of the connecting plate 12, so as to avoid the connecting plate 12 shifting during the jacking process, which would cause uneven force on the jacking rod 16 and ensure the accuracy of the jacking direction.

[0022] In a preferred embodiment, a drive motor 2 is welded to one side of the mounting base 11, and a connecting rod 4 is connected to one side of the drive motor 2 via an output shaft. A push rod 5 is sleeved inside the connecting rod 4, and the push rod 5 is connected through the moving mold 17. Furthermore, by setting the push rod 5 through the moving mold 17, a push force is applied to the center force point of the foot pedal, which cooperates with the push rod 16 to form a double push, avoiding the force deviation caused by a single push.

[0023] In a preferred embodiment, a rotary motor 6 is provided on one side of the drive motor 2, and a small gear 7 is connected to one side of the rotary motor 6 via an output shaft. A large gear 3 is meshed on one side of the small gear 7, and rotary gears 8 are meshed on all four ends of the large gear 3. Furthermore, by providing the rotary motor 6, the small gear 7 is driven to rotate via the output shaft, providing initial power for the transmission of the gear set and the lead screw 9, and controlling the mold closing or opening action of the moving mold 17 and the stationary mold 18.

[0024] In a preferred embodiment, a lead screw 9 is fixedly connected to one side of each rotating gear 8, and a guide sleeve 10 is threadedly connected to one side of the lead screw 9. The guide sleeve 10 is fixedly connected to the moving mold 17, and one side of the lead screw 9 is fixedly connected to the stationary mold 18 through a bearing. Furthermore, by setting the lead screw 9, the rotating gear 8 is driven to rotate by the rotating motor 6, the small gear 7, the large gear 3, and the rotating gear 8. By utilizing the threaded engagement with the guide sleeve 10, the rotational motion is converted into the linear motion of the guide sleeve 10, thereby driving the moving mold 17 to achieve mold closing or opening.

[0025] In a preferred embodiment, a micro motor 19 is provided on one side of the protective frame 1. A drive gear 20 is connected to one side of the micro motor 19 via an output shaft, and a driven gear 21 is meshed with one side of the drive gear 20. Furthermore, by providing the micro motor 19, the drive gear 20 is driven to rotate via the output shaft, providing power for the rotation of the conveyor blade 23, thereby realizing the automatic conveying of injection molding raw materials.

[0026] In a preferred embodiment, a conveying blade 23 is fixedly provided on one side of the driven gear 21. The conveying blade 23 is located inside the conveying cylinder 22, and a storage cylinder 24 is provided on one side of the upper end of the conveying cylinder 22. A discharge groove 25 is provided on one side of the stationary mold 18. Furthermore, by providing the discharge groove 25, the bicycle pedal after demolding slides down to the collection area, realizing the separation of the finished product from the equipment and completing the entire production cycle.

[0027] The working process of this utility model is as follows: First, after the micro motor 19 starts, its output shaft drives the drive gear 20 to rotate. The drive gear 20 meshes with the driven gear 21, causing the conveying blade 23 on one side of the driven gear 21 to rotate inside the conveying cylinder 22. The injection molding material in the storage cylinder 24 falls into the conveying cylinder 22 and is pushed to the cavity inlet after the stationary mold 18 and the moving mold 17 are closed by the rotation of the conveying blade 23, completing the material conveying preparation before injection molding. Next, the rotary motor 6 starts, and its output shaft drives the pinion 7 to rotate. The pinion 7 meshes with the large gear 3, driving the large gear 3 to rotate. The large gear 3 and the four meshing rotating gear 8 rotate synchronously, which in turn drives the lead screw 9 on one side of the rotating gear 8 to rotate. Since the lead screw 9 is fixed to the stationary mold 18 through the bearing and is threadedly connected to the guide sleeve 10, which is in turn fixed to the moving mold 17, when the lead screw 9 rotates, the guide sleeve 10 moves along the lead screw 9 toward the stationary mold 18, ultimately driving the moving mold 17 and the stationary mold 18 to precisely close, forming a closed injection cavity. After the moving mold 17 and the stationary mold 18 are completely closed, the raw material in the conveying cylinder 22 is continuously pushed into the injection cavity, where it cools and solidifies, forming a bicycle pedal blank that matches the shape of the cavity. After injection molding, the rotary motor 6 starts in reverse, driving the lead screw 9 to reverse through the reverse transmission of the small gear 7, the large gear 3, and the rotating gear 8. The guide sleeve 10 moves along the lead screw 9 away from the stationary mold 18, separating the moving mold 17 from the stationary mold 18, leaving space for demolding. When the drive motor 2 starts, the output shaft drives the push rod 5 to move axially through the connecting rod 4. After the push rod 5 passes through the moving mold 17, it applies a pushing force to the center area of ​​the foot pedal blank, initially separating the blank from the cavity of the moving mold 17. At the same time, the electric telescopic rod 14 starts and drives the push rod 16 to move along the through hole of the moving mold 17 through the connecting ring 15. At this time, the connecting plate 12 moves stably under the guidance of the slide rail 13. The slide rail 13 provides support through the mounting seat 11 to ensure that the movement trajectory is straight, so that the push rod 16 applies a uniform pushing force to the edge, anti-slip texture and other easily sticky parts of the foot pedal blank. With the double pushing, the foot pedal blank is completely separated from the cavity of the moving mold 17. Because the pushing force is evenly distributed, the blank is prevented from being deformed or damaged. After demolding, the foot pedal blank falls into the discharge groove 25 on one side of the stationary mold 18 under its own weight.

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An injection molding machine for bicycle pedals that facilitates demolding, comprising a protective frame (1), characterized in that; The protective frame (1) has a connecting plate (12) on one side inside. The connecting plate (12) has electric telescopic rods (14) fixedly installed at both ends on one side. The electric telescopic rods (14) have connecting rings (15) fixedly installed on one side. The connecting rings (15) have push rods (16) fixedly installed on one side. The push rods (16) are connected to the through holes of the moving mold (17) on one side.

2. The injection molding machine for a bicycle pedal that is easy to demold according to claim 1, characterized in that: The protective frame (1) has a slide rail (13) on one side inside. The slide rail (13) is connected to a mounting base (11) via a fixed base. The mounting base (11) is located on one side of the connecting plate (12).

3. The bicycle pedal injection molding machine for easy demolding according to claim 2, characterized in that: A drive motor (2) is welded to one side of the mounting base (11), and a connecting rod (4) is connected to one side of the drive motor (2) via an output shaft. A push rod (5) is sleeved inside the connecting rod (4), and the push rod (5) is connected through the moving mold (17).

4. The bicycle pedal injection molding machine for easy demolding according to claim 3, characterized in that: A rotary motor (6) is provided on one side of the drive motor (2). A small gear (7) is connected to one side of the rotary motor (6) via an output shaft. A large gear (3) is meshed on one side of the small gear (7). Rotary gears (8) are meshed on all four ends of the large gear (3).

5. The injection molding machine for a bicycle pedal that is easy to demold, as described in claim 4, is characterized in that: Each of the rotating gears (8) is fixedly connected to a lead screw (9) on one side, and a guide sleeve (10) is threadedly connected to one side of the lead screw (9). The guide sleeve (10) is fixedly connected to the moving mold (17), and the lead screw (9) is fixedly connected to the stationary mold (18) on one side through a bearing.

6. The bicycle pedal injection molding machine for easy demolding according to claim 1, characterized in that: A micro motor (19) is provided on one side of the protective frame (1). A drive gear (20) is connected to one side of the micro motor (19) via an output shaft. A driven gear (21) is meshed with one side of the drive gear (20).

7. The injection molding machine for a bicycle pedal that is easy to demold according to claim 6, characterized in that: A conveying blade (23) is fixedly provided on one side of the driven gear (21). The conveying blade (23) is located inside the conveying cylinder (22). A storage cylinder (24) is provided on one side of the upper end of the conveying cylinder (22), and a discharge groove (25) is provided on one side of the stationary mold (18).

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