Uniform blanking device for injection molded parts
By designing a uniform feeding device with a conveyor belt and gripping mechanism, the problem of low efficiency in manual layer packaging of injection molded parts was solved, realizing automated layer packaging of injection molded parts, improving work efficiency and reducing labor costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-07
AI Technical Summary
In existing technologies, after injection molded parts are removed from between molds, they need to be transported by robotic arms and manually packaged in layers, which is inefficient and has high labor costs.
A uniform feeding device was designed, comprising a support frame, a conveyor belt, a material distribution channel, a moving mechanism, a lifting mechanism, and a gripping mechanism. The conveyor belt arranges the injection molded parts in an orderly manner, and the gripping mechanism places them into packaging boxes in layers. A film is placed between adjacent layers for protection. The device is automated by using sensors and pneumatic suction cups.
It enables highly efficient and automated layered packaging of injection molded parts, reducing labor costs, improving work efficiency, and reducing the number of manual operations.
Smart Images
Figure CN224089577U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection molding manufacturing and processing, and in particular to a uniform feeding device for injection molding parts. Background Technology
[0002] After injection molding, the injection molded part is ejected from the mold and falls onto the injection molding machine base between the moving mold and the fixed mold. Since the injection molded part is located between the two molds, the two molds will close, and the newly formed mold has a certain temperature. Therefore, the injection molded part can only be removed from between the two molds by a robotic arm. The robotic arm is equipped with a pneumatic suction cup. The suction cup picks up the injection molded part and places it on the conveyor belt. The conveyor belt transports the injection molded part to the next process. Workers neatly pack the delivered injection molded parts into packaging boxes for subsequent storage and transportation.
[0003] During loading, the manufactured injection molded parts need to be divided into multiple layers, and a film is placed between adjacent layers to separate them, so as to prevent the upper and lower injection molded parts from directly contacting each other and thus being damaged when they rub or collide. However, workers can only put a maximum of two injection molded parts into the collection box at a time, which is inefficient. Utility Model Content
[0004] The purpose of this invention is to provide a uniform feeding device for injection molded parts, which has the advantage of being able to feed more injection molded parts into the packaging box than manual feeding at one time, thus reducing labor costs and increasing work efficiency.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0006] A uniform feeding device for injection molded parts includes a support frame, a conveyor belt connected to the support frame, a placement plate fixedly connected to the support frame, and an mounting frame fixedly connected to the support frame. The conveyor belt passes through the mounting frame, a moving mechanism is provided on the mounting frame, a lifting mechanism is connected to the moving mechanism, and a gripping mechanism is connected to the lifting mechanism. A material distribution channel is provided on the conveyor belt, the material distribution channel includes a crossbar, a second crossbar, and multiple side plates. The first and second crossbars are parallel to each other, and their two ends are fixedly connected to the two sides of the conveyor belt. The side plates are evenly spaced between the two crossbars, forming a channel between adjacent side plates. The first crossbar is located directly above one end of the side plate it is closest to, and the second crossbar is located in front of the other end of the side plate. The two ends of each side plate are fixedly connected to the two crossbars by connectors.
[0007] Using the above technical solution, packaging boxes are placed on the ground below the mounting frame, and multiple layers of film are placed on the placement plate. The robotic arm on the injection molding machine picks up the molded injection parts and puts them onto conveyor belt one. Conveyor belt one moves the injection parts, which move to the material distribution channel. Under the action of each side plate, the moving injection parts pass under the support bar one and enter the respective channels, thus arranging the injection parts in an orderly manner. When the injection part at the beginning of each channel moves to contact the crossbar two, it is blocked by the crossbar two and stops moving forward. After the injection part at the beginning stops moving, it blocks the injection parts behind it, thus stopping the injection parts in that channel. Conveyor belt one continues to run, moving the injection parts in other channels closer to the crossbar two, and at the same time, it brings the injection parts outside the channel into the channel. When each channel is full of injection parts, the lifting mechanism drives the gripping mechanism to descend, so that it contacts the injection parts in each channel in a certain area, and then grips the injection parts in that area. The lifting mechanism drives the gripping mechanism to descend. The mechanism rises, and the gripping mechanism lifts the injection molded parts off the channel. The conveyor belt continuously feeds injection molded parts into the channel. The moving mechanism moves the gripped injection molded parts to the top of the packaging box. The lifting mechanism lowers the injection molded parts and places them at the bottom of the packaging box. The gripping mechanism releases the injection molded parts, and the lifting mechanism separates the gripping mechanism from the injection molded parts in the box. Then, the moving and lifting mechanisms move the gripping mechanism to the top of the film on the placement plate. The lifting mechanism lowers the gripping mechanism to grab the film and places it on top of the bottom injection molded parts in the packaging box. After the gripping mechanism releases the film, the moving and lifting mechanisms move the gripping mechanism to grab the injection molded parts in the gripping area of the channel again. This process is repeated to divide the manufactured injection molded parts into multiple layers and place them into the packaging box. A protective film is placed between adjacent layers of injection molded parts, saving labor costs. Compared to manual labor, which can only place a maximum of two injection molded parts into the packaging box at a time, the gripping mechanism can place one layer of injection molded parts at a time, making it more efficient.
[0008] Preferably, the moving mechanism is a lead screw, which is horizontally rotatably connected to the upper part of the mounting frame. The axis of the lead screw is parallel to the conveying direction of the conveyor belt. The slider of the lead screw is fixedly connected to a connecting seat, and the lifting mechanism is connected to the connecting seat.
[0009] Using the above technical solution, when the lead screw rotates, its slider drives the connecting seat to move, and the connecting seat drives the lifting mechanism and the gripping mechanism to move horizontally.
[0010] Preferably, the lifting mechanism is a second lead screw, which is vertically rotatably connected to the side of the connecting seat. The second lead screw is fixedly connected to a movable seat, and the movable seat is fixedly connected to a connecting plate. The gripping mechanism is fixedly connected to the connecting plate.
[0011] Using the above technical solution, the second lead screw rotates its slider to drive the moving seat to rise and fall, and the moving seat drives the gripping mechanism to rise and fall through the connecting plate.
[0012] Preferably, the gripping mechanism includes a mounting plate and a pneumatic suction cup. The pneumatic suction cup includes an air pump and a suction cup. The air pump is fixedly connected to the connecting seat, and the suction cup is connected to the mounting plate. Multiple rows of suction cups are fixedly connected to the mounting plate, and each row of suction cups has the same number of suction cups. The multiple rows of suction cups on the mounting plate correspond one-to-one with the multiple channels formed by adjacent side plates. A conduit connects the air pump and the suction cup.
[0013] Using the above technical solution, the lifting mechanism drives the moving seat to descend, and the moving seat drives the mounting plate and the suction cups on the mounting plate to descend through the connecting plate. Each row of suction cups on the mounting plate passes through its corresponding channel and contacts the injection molded part in the channel. The air pump extracts the air between the suction cup and the injection molded part, and the suction cup picks up the injection molded part. The lifting mechanism drives the suction cup to rise and leave the channel. Then, the lifting mechanism and the moving mechanism carry the injection molded part into the packaging box. The air pump inflates the space between the suction cup and the injection molded part, and the suction cup releases the injection molded part.
[0014] Preferably, the connector includes a retaining ring and a bolt. The retaining ring of the connector between the side plate and the first crossbar is located directly above the side plate near its end. The retaining ring is fixedly connected to the side plate. The first crossbar passes through the retaining ring of the connector between it and each side plate. The retaining ring is slidably connected to the crossbar. Each retaining ring on the first crossbar is threaded with a bolt. The head of the bolt contacts the first crossbar. The retaining ring of the connector between the side plate and the second crossbar is fixedly connected to the front of the end of the first crossbar. The connection method between the first crossbar, the second crossbar and the retaining ring is the same.
[0015] By using the above technical solution, the bolts are tightened so that their heads press against the crossbar, thereby fixing the retaining ring to the crossbar, and then fixing the side plate to the crossbar.
[0016] Preferably, the side plate has a horizontal baffle fixedly connected above the section near the first crossbar, and also includes a connecting bar and a sensor. The connecting bar is located at the other end of the side plate opposite to the end where the first crossbar is located. The connecting bar is fixedly connected to the first conveyor belt. Multiple sensors corresponding to each channel are fixedly connected to the connecting bar, and each sensor is inserted into its corresponding channel.
[0017] Using the above technical solution, the injection molded parts enter the channel and first move below the baffle. When the injection molded parts leave below the baffle, they pass through the sensor corresponding to the channel. The sensor records the number of injection molded parts that pass through the baffle. When the area of the channel without baffles is full of injection molded parts, no injection molded parts pass through the sensor. The moving mechanism and the lifting mechanism drive the gripping mechanism to grab the injection molded parts in the area of the channel without baffles and then put them into the packaging box. The baffle is used to prevent the injection molded parts from being blocked by the horizontal bar after the channel is full. The injection molded parts stop moving and thus move relative to the conveyor belt. When the conveyor belt moves the injection molded parts, the injection molded parts in front and behind will be squeezed, thus forming a stack in the channel. Therefore, the injection molded parts in the channel are blocked by the baffle and will not move to the top of the injection molded parts in front of them. Similarly, the injection molded parts behind them will not move to the top of them.
[0018] Preferably, a second conveyor belt is provided below the support frame.
[0019] Using the above technical solution, the packaging box is placed on the second conveyor belt. The moving mechanism and the lifting mechanism drive the gripping mechanism to put the arranged injection molded parts into the packaging box. When the packaging box is full of injection molded parts, the second conveyor belt transports the packaging box and the injection molded parts inside to the next process. No manual handling is required, which saves physical strength. Attached Figure Description
[0020] Figure 1 This is an overall schematic diagram of the embodiment;
[0021] Figure 2 This is a front view of an embodiment;
[0022] Figure 3 This is a side view of an embodiment;
[0023] Figure 4 This is a top view of an embodiment;
[0024] Figure 5 A schematic diagram of the moving mechanism, lifting mechanism and gripping mechanism;
[0025] Figure 6 This is a schematic diagram of the material distribution channel.
[0026] Reference numerals in the attached diagram: 1. Support frame; 2. Conveyor belt one; 3. Placement plate; 4. Mounting frame; 5. Crossbar one; 6. Crossbar two; 7. Side plate; 8. Lead screw one; 9. Connecting seat; 10. Lead screw two; 11. Moving seat; 12. Mounting plate; 13. Air pump; 14. Suction cup; 15. Snap ring; 16. Bolt; 17. Baffle; 18. Connecting bar; 19. Sensor; 20. Conveyor belt two. Detailed Implementation
[0027] The following description is merely a preferred embodiment of this utility model, and the scope of protection is not limited to this embodiment. All technical solutions falling within the scope of this utility model should be considered within the protection scope of this utility model. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
[0028] See Figure 1 , Figure 6 A uniform feeding device for injection molded parts includes a support frame 1, a conveyor belt 2 connected to the support frame 1, a second conveyor belt 20 positioned below the first conveyor belt 2 on the support frame 1, a placement plate 3 welded to the support frame 1, and a material distribution channel on the first conveyor belt 2. The material distribution channel includes a first crossbar 5, a second crossbar 6, and multiple side plates 7. The first crossbar 5 and the second crossbar 6 are parallel to each other, and their two ends are fixedly connected to the two sides of the first conveyor belt 2 by bolts and nuts. The side plates 7 are evenly spaced between two crossbars, forming a channel between adjacent side plates 7. The first crossbar 5 is located directly above one end of the side plate 7 it is closest to, and the second crossbar 6 is located in front of the other end of the side plate 7. The two ends of the side plates 7 are fixedly connected to the two crossbars by connectors.
[0029] See Figure 4 , Figure 6 The connector includes a retaining ring 15 and a bolt 16. The retaining ring 15 of the connector between the side plate 7 and the first crossbar 5 is located directly above the end of the side plate 7. The retaining ring 15 is integrally formed with the side plate 7. The first crossbar 5 passes through the retaining ring 15 of the connector between it and each side plate 7. The retaining ring 15 is slidably connected to the crossbar. Each retaining ring 15 on the first crossbar 5 is threaded with a bolt 16. The head of the bolt 16 contacts the first crossbar 5. The retaining ring 15 of the connector between the side plate 7 and the second crossbar 6 is integrally formed in front of the end of the first crossbar 5. The connection method between the first crossbar 5, the second crossbar 6 and the retaining ring 15 is the same. By tightening the bolt 16, its head is pressed against the crossbar, thereby fixing the retaining ring 15 to the crossbar, and thus fixing the side plate 7 to the crossbar.
[0030] See Figure 6 The side plate 7 has a horizontal baffle 17 integrally formed above the section near the crossbar 5. It also includes a connecting bar 18 and a sensor 19. The connecting bar 18 is located on the other end of the side plate 7 opposite to the end where the crossbar 5 is located. The two ends of the connecting bar 18 are fixedly connected to the two sides of the conveyor belt 2 by bolts 16 and nuts. Multiple sensors 19 corresponding to each channel are fixedly connected to the connecting bar 18. Each sensor 19 is inserted into its corresponding channel.
[0031] See Figures 1 to 5Furthermore, a mounting frame 4 is integrally formed on the support frame 1. The conveyor belt 2 passes through the mounting frame 4. A horizontal lead screw 8 is rotatably connected to the upper part of the mounting frame 4. The axis of the lead screw 8 is parallel to the conveying direction of the conveyor belt 2. A connecting seat 9 is fixedly connected to the slider of the lead screw 8. A vertical lead screw 10 is rotatably connected to the side of the connecting seat 9. A movable seat 11 is fixedly connected to the slider of the lead screw 10. A connecting plate is fixedly connected to the movable seat 11. A mounting plate 12 is connected to the connecting plate by bolts 16 and nuts. Multiple rows of suction cups 14 are fixedly connected to the mounting plate 12. Each row of suction cups 14 on the connecting seat 9 has the same number of suction cups. An air pump 13 is fixedly connected to the connecting seat 9. A conduit connects the air pump 13 to the suction cups 14. The multiple rows of suction cups 14 on the mounting plate 12 correspond one-to-one with the multiple channels formed by the adjacent side plates 7.
[0032] Working principle: A packaging box is placed on conveyor belt 20 below mounting frame 4, and multiple layers of film are placed on placement plate 3. The robotic arm on the injection molding machine picks up the molded injection parts and places them on conveyor belt 2. Conveyor belt 2 moves the injection parts, and the injection parts move to the material distribution channel. Under the action of each side plate 7, the moving injection parts pass under the support bar 1 and enter the respective channels, thus arranging the injection parts in an orderly manner. The injection parts first move under the baffle 17 when they enter the channel. When the injection parts leave the area under the baffle 17 and enter the area of the channel without the baffle 17, they will pass through the sensor 19 corresponding to that channel. The sensor 19 records the number of injection parts that have passed through the baffle 17. When the first injection molded part in each channel moves to contact the second crossbar 6, it is blocked by the crossbar 6 and stops moving forward. After the first injection molded part stops moving, it blocks the injection molded parts behind it, thus stopping the movement of the injection molded parts in that channel. The conveyor belt 2 continues to run, driving the injection molded parts in other channels to move closer to the second crossbar 6, and at the same time, it drives the injection molded parts outside the channel into the channel. When the area of the channel without the baffle 17 is full of injection molded parts, no injection molded parts pass the sensor 19. The lead screw 10 rotates its slider to drive the moving seat 11 to descend. The moving seat 11 drives the mounting plate 12 and the suction cup 14 on the upper part of the mounting plate 12 to descend through the connecting plate, so that the suction cup 14 contacts the injection molded parts in the area of the channel without the baffle 17. The air pump 13 extracts the air between the suction cup 14 and the injection molded part, and the suction cup 14 sucks up the injection molded part.
[0033] The lifting mechanism raises the suction cup 14, which in turn lifts the molded part it holds, removing it from the channel. The conveyor belt 2 moves the molded parts below the baffle 17 to an area of the channel without the baffle 17, while the molded parts outside the channel move below the baffle 17. The lead screw 8 rotates, and its slider moves the connecting seat 9. The connecting seat 9 moves the lifting mechanism, the mounting plate 12, and the suction cup 14 on the mounting plate 12 horizontally. The suction cup 14 moves the molded part it holds to the top of the packaging box. The lifting mechanism lowers the molded part and places it at the bottom of the packaging box. The air pump 13 inflates the space between the suction cup 14 and the molded part, causing the suction cup 14 to release the molded part. The lifting mechanism then raises the suction cup 14, separating it from the molded part in the box. Then, the moving mechanism and lifting mechanism move the suction cup 14 to directly above the film on the placement plate 3. The lifting mechanism lowers the suction cup 14 to hold the film, and then places the film above the bottom layer of injection molded parts in the packaging box. After the suction cup 14 releases the film, the moving mechanism and lifting mechanism move the suction cup 14 to hold the injection molded parts in the gripping area of the channel again. This process is repeated to divide the manufactured injection molded parts into multiple layers and place them into the packaging box. A protective film is placed between two adjacent layers of injection molded parts, and the packaging box is placed on the conveyor belt. The conveyor belt then transports the packaging box and the injection molded parts inside to the next process, saving labor costs. Compared to manual labor, which can only put a maximum of two injection molded parts into the packaging box at a time, the gripping mechanism can put in one layer of injection molded parts at a time, making it more efficient.
Claims
1. A uniform feeding device for injection molded parts, comprising a support frame (1), characterized in that, A conveyor belt (2) is connected to the support frame (1), a placement plate (3) is fixedly connected to the support frame (1), and a mounting frame (4) is fixedly connected to the support frame (1). The conveyor belt (2) passes through the mounting frame (4). A moving mechanism is provided on the mounting frame (4), a lifting mechanism is connected to the moving mechanism, and a gripping mechanism is connected to the lifting mechanism. A material distribution channel is provided on the conveyor belt (2), and the material distribution channel includes a crossbar (5), a crossbar (6), and multiple side plates ( 7) The first horizontal bar (5) and the second horizontal bar (6) are parallel to each other. The two ends of the first horizontal bar (5) and the second horizontal bar (6) are fixedly connected to the two sides of the first conveyor belt (2). The side plates (7) are evenly spaced between the two horizontal bars, and a channel is formed between two adjacent side plates (7). The first horizontal bar (5) is located directly above one end of the side plate (7) it is close to, and the second horizontal bar (6) is located in front of the other end of the side plate (7). The two ends of each side plate (7) are fixedly connected to the two horizontal bars by connectors.
2. The uniform feeding device for injection molded parts according to claim 1, characterized in that, The moving mechanism is a lead screw (8), which is horizontally rotatably connected to the upper part of the mounting frame (4). The axis of the lead screw (8) is parallel to the conveying direction of the conveyor belt (2). The slider of the lead screw (8) is fixedly connected to the connecting seat (9). The lifting mechanism is connected to the connecting seat (9).
3. A uniform feeding device for injection molded parts according to claim 2, characterized in that, The lifting mechanism is a second lead screw (10), which is vertically rotatably connected to the side of the connecting seat (9). The slider of the second lead screw (10) is fixedly connected to a movable seat (11), and the movable seat (11) is fixedly connected to a connecting plate. The gripping mechanism is fixedly connected to the connecting plate.
4. A uniform feeding device for injection molded parts according to claim 3, characterized in that, The gripping mechanism includes a mounting plate (12) and a pneumatic suction cup (14). The pneumatic suction cup (14) includes an air pump (13) and a suction cup (14). The mounting plate (12) is fixedly connected to a connecting plate. Multiple rows of suction cups (14) are fixedly connected on the mounting plate (12). Each row of suction cups (14) has the same number of suction cups. The multiple rows of suction cups (14) on the mounting plate (12) correspond one-to-one with the multiple channels formed by the adjacent side plates (7). The air pump (13) is fixedly connected to the connecting seat (9). A conduit connects the air pump (13) and the suction cup (14).
5. A uniform feeding device for injection molded parts according to claim 1, characterized in that, The connector includes a retaining ring (15) and a bolt (16). The retaining ring (15) of the connector between the side plate (7) and the first crossbar (5) is located directly above the side plate (7) near its end. The retaining ring (15) is fixedly connected to the side plate (7). The first crossbar (5) passes through the retaining ring (15) of the connector between it and each side plate (7). The retaining ring (15) is slidably connected to the crossbar. Each retaining ring (15) on the first crossbar (5) is threaded with a bolt (16). The head of the bolt (16) contacts the first crossbar (5). The retaining ring (15) of the connector between the side plate (7) and the second crossbar (6) is fixedly connected to the front of the end of the first crossbar (5). The connection methods of the first crossbar (5), the second crossbar (6) and the retaining ring (15) are the same.
6. A uniform feeding device for injection molded parts according to claim 1, characterized in that, The side plate (7) has a horizontal baffle (17) fixedly connected above the section near the crossbar (5), and also includes a connecting bar (18) and a sensor (19). The connecting bar (18) is located on the side plate (7) at the other end opposite to the end of the crossbar (5). The two ends of the connecting bar (18) are fixedly connected to both sides of the conveyor belt (2). Multiple sensors (19) corresponding to each channel are fixedly connected to the connecting bar (18), and each sensor (19) is inserted into its corresponding channel.
7. A uniform feeding device for injection molded parts according to claim 1, characterized in that, The support frame (1) is located below the first conveyor belt (20) and a second conveyor belt (20) is provided.