Air blowing pipe demolding structure

Abstract

This utility model relates to the field of injection mold technology, specifically to an air-blowing demolding structure, including a working platform. A second mounting plate and a first mounting plate are fixedly connected to the left and right sides of the upper surface of the working platform, respectively. A material discharge groove is formed on the surface of the working platform between the second and first mounting plates. A receiving hopper is provided on the lower side of the material discharge groove. A first sliding connecting plate is provided between the second and first mounting plates. A demolding assembly is provided on the upper side of the first connecting plate. The demolding assembly includes an air pump, a positioning sleeve, a sliding rod, a shovel-shaped air-gathering head, a locking screw, a connecting valve, a first air inlet pipe, and a second air inlet pipe. The air pump, connecting valve, first air inlet pipe, and second air inlet pipe work together to spray airflow from the shovel-shaped air-gathering head, forming a strip-shaped air curtain on the right side of the product. This obstructs the ejected product and blows it downwards, ensuring the product falls accurately into the receiving hopper, effectively preventing product splashing and improving material discharge accuracy.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an air blowing pipe demolding structure. Background Technology

[0002] Injection molds are tools used to produce plastic products; they are also tools that give plastic products a complete structure and precise dimensions. Injection molding is a processing method used for the mass production of certain complex-shaped parts. Specifically, it refers to injecting molten plastic into a mold cavity under high pressure using an injection molding machine, and then cooling and solidifying it to obtain the molded product.

[0003] In the existing injection mold process, ejector pins are mostly used to push the product outward during demolding and unloading. Although this can achieve rapid demolding and unloading, in actual use, when demolding and unloading some small injection molded products, the product is very likely to bounce outward and cannot fall accurately into the receiving barrel below, resulting in low unloading accuracy.

[0004] Therefore, it is necessary to invent a blower demolding structure to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an air-blowing demolding structure to solve the problem in the technology that when demolding and unloading small injection molded products, the products are easily ejected to the outside and cannot fall accurately into the receiving hopper on the lower side, resulting in low unloading accuracy.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an air-blowing pipe demolding structure, including a working platform, on the left and right sides of the upper surface of the working platform respectively fixedly connected to a second mounting plate and a first mounting plate, a material discharge groove is opened on the surface of the working platform between the second mounting plate and the first mounting plate, a material receiving bucket is provided on the lower side of the material discharge groove, a first connecting plate that can slide left and right is provided between the second mounting plate and the first mounting plate, and a demolding assembly is provided on the upper side of the first connecting plate, the demolding assembly including an air pump, a positioning sleeve, a sliding rod, a shovel-shaped air-gathering head, a locking screw, a connecting valve, a first air inlet pipe and a second air inlet pipe.

[0007] By adopting the above technical solution, during the feeding process, the air pump, connecting valve, first air inlet pipe and second air inlet pipe work together to spray airflow from the shovel-shaped air gathering head to form a strip-shaped air curtain. The air curtain blocks the pushed-out product and blows the product downward under the action of the airflow, so that the product can fall accurately into the receiving bucket on the lower side, effectively avoiding product splashing and improving feeding accuracy.

[0008] Optionally, the positioning sleeve is fixedly connected to the middle position of the upper end of the first connecting plate, the slide rod is slidably connected to the inside of the positioning sleeve, the shovel-shaped air-gathering head is fixedly connected to the left end of the slide rod, and the locking screw is threadedly connected to the upper surface of the positioning sleeve.

[0009] By adopting the above technical solution, the slide bar can slide left and right inside the positioning sleeve, which can adjust the left and right position of the shovel-shaped air-gathering head, making it applicable to molds of different types of products and improving the adaptability of the equipment.

[0010] Optionally, the connecting valve is fixedly connected to the rear end of the first connecting plate, the two ends of the first air inlet pipe are fixedly connected to the connecting valve and the shovel-shaped air gathering head respectively, and the two ends of the second air inlet pipe are fixedly connected to the connecting valve and the air pump respectively.

[0011] By adopting the above technical solution, the connecting valve is used to control the airflow delivery, while the lower air duct of the shovel-shaped air-gathering head is narrow, which effectively increases the airflow speed and better blocks the product.

[0012] Optionally, an extruder is fixedly installed on the right side of the first mounting plate, the air pump is fixedly installed on the upper end of the extruder, a second connecting plate is fixedly connected to the left side surface of the first mounting plate, and a fixed mold is fixedly connected to the left side surface of the second connecting plate.

[0013] By adopting the above technical solution, the extruder is used to melt plastic granules and then feed them.

[0014] Optionally, two sets of positioning rods are fixedly connected between the second mounting plate and the first mounting plate, and a sliding plate is slidably connected between the two sets of positioning rods. A fixing frame is fixedly connected to the right side surface of the sliding plate. The first connecting plate is fixedly connected to the right end of the fixing frame. A hydraulic cylinder is fixedly installed on the left side of the second mounting plate, and the right end of the piston rod in the hydraulic cylinder is fixedly connected to the sliding plate.

[0015] By adopting the above technical solution, the hydraulic cylinder drives the sliding plate to slide left and right on the surface of the positioning rod, thereby driving the first connecting plate to slide left and right. While the first connecting plate slides left and right, it drives the shovel-shaped air-gathering head to move left and right. The shovel-shaped air-gathering head always follows the first connecting plate.

[0016] Optionally, a connecting seat is fixedly connected to the right side surface of the first connecting plate, a moving mold is fixedly connected to the right side of the connecting seat, a transmission plate is slidably connected to the inner side of the connecting seat, a plurality of supporting springs are fixedly connected between the transmission plate and the moving mold, a plurality of ejector pins are fixedly connected to the right side surface of the transmission plate, and the right end of the ejector pin is inserted into the moving mold.

[0017] By adopting the above technical solution, the first connecting plate slides left and right, driving the connecting seat, transmission plate and moving mold to slide together. Injection grooves are opened on the surfaces of both the moving mold and the fixed mold.

[0018] Optionally, the sliding plate has two sets of first sliding grooves on its surface, the first connecting plate has two sets of second sliding grooves on its surface, and the connecting seat has two sets of third sliding grooves on its surface. The first, second, and third sliding grooves are slidably connected with abutment rods, and the left end of the abutment rods is fixedly connected to the transmission plate.

[0019] By adopting the above technical solution, the transmission plate slides to the left along with the first connecting plate, which in turn drives the abutment rod to slide to the left. When the left end of the abutment rod abuts against the second mounting plate, it will push the transmission plate to the right, and then push the ejector pin to the right to push the product out. When the first connecting plate moves to the right, the support spring will automatically reset the transmission plate and the ejector pin.

[0020] Optionally, the first mounting plate and the second mounting plate are fixedly connected by two sets of linear guide rails, and a protective cover is slidably connected to the upper side of the linear guide rails.

[0021] By adopting the above technical solutions, the protective cover protects the equipment and improves the safety of the injection molding process.

[0022] The technical effects and advantages provided by this utility model in the above technical solution are as follows: 1. This utility model uses an air pump, a connecting valve, a first air inlet pipe, and a second air inlet pipe to spray airflow from a shovel-shaped air-gathering head, forming a strip-shaped air curtain on the right side of the moving mold. The air curtain blocks the ejected product and blows the product downward under the action of the airflow, so that the product can fall accurately into the receiving bucket on the lower side, effectively avoiding product splashing and improving the feeding accuracy. 2. This utility model allows the slide rod to slide left and right inside the positioning sleeve and lock it in place with a locking screw, thereby adjusting the left and right position of the shovel-shaped air-gathering head to make it suitable for molds of different types of products and improve the adaptability of the equipment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the sliding plate structure of this utility model; Figure 4 This is a schematic diagram of the first connecting plate structure of this utility model; Figure 5 This is a schematic diagram of the connecting seat structure of this utility model.

[0024] Explanation of reference numerals in the attached figures: 1. Working platform; 11. Feed chute; 12. Receiving bucket; 13. Linear guide rail; 14. Protective cover; 2. First mounting plate; 21. Extruder; 22. Air pump; 3. Second mounting plate; 31. Hydraulic cylinder; 32. Abutment rod; 4. Positioning rod; 41. Sliding plate; 42. First slide groove; 43. Fixing frame; 5. First connecting plate; 51. Second slide groove; 52. Positioning sleeve; 53. Slide rod; 54. Shovel-shaped air gathering head; 55. Locking screw; 56. Connecting valve; 57. First air inlet pipe; 58. Second air inlet pipe; 6. Connecting seat; 61. Third slide groove; 62. Moving mold; 63. Transmission plate; 64. Ejector pin; 65. Support spring; 7. Second connecting plate; 71. Fixed mold. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figures 1 to 4 The air-blowing pipe demolding structure shown includes a working platform 1. A second mounting plate 3 and a first mounting plate 2 are fixedly connected to the left and right sides of the upper surface of the working platform 1, respectively. Two sets of linear guide rails 13 are fixedly connected between the first mounting plate 2 and the second mounting plate 3. A protective cover 14 is slidably connected to the upper side of the linear guide rails 13. A material discharge groove 11 is formed on the surface of the working platform 1 between the second mounting plate 3 and the first mounting plate 2. A receiving bucket 12 is provided on the lower side of the material discharge groove 11. A first connecting plate 5, which can slide left and right, is provided between the second mounting plate 3 and the first mounting plate 2. A demolding assembly is provided on the upper side of the first connecting plate 5. The demolding assembly includes... The components include an air pump 22, a positioning sleeve 52, a sliding rod 53, a shovel-shaped air-gathering head 54, a locking screw 55, a connecting valve 56, a first air inlet pipe 57, and a second air inlet pipe 58. The positioning sleeve 52 is fixedly connected to the middle of the upper end of the first connecting plate 5. The sliding rod 53 is slidably connected to the inside of the positioning sleeve 52. The shovel-shaped air-gathering head 54 is fixedly connected to the left end of the sliding rod 53. The locking screw 55 is threadedly connected to the upper surface of the positioning sleeve 52. The connecting valve 56 is fixedly connected to the rear end of the first connecting plate 5. The two ends of the first air inlet pipe 57 are fixedly connected to the connecting valve 56 and the shovel-shaped air-gathering head 54, respectively. The two ends of the second air inlet pipe 58 are fixedly connected to the connecting valve 56 and the air pump 22, respectively.

[0027] The lower ends of the inner walls on both the front and rear sides of the protective cover 14 are connected to sliders. The protective cover 14 slides left and right on the upper side of the work platform 1 through the cooperation of the sliders and the linear guide rail 13. During the injection molding process, the protective cover 14 is slid between the first mounting plate 2 and the second mounting plate 3 to protect the equipment, avoid accidental contact during the injection molding process, and improve production safety.

[0028] Meanwhile, during the material feeding process, the air pump 22 is started. The air pump 22 compresses the external air and delivers it into the second air inlet pipe 58. Then, it is delivered to the shovel-shaped air gathering head 54 through the connecting valve 56 and the first air inlet pipe 57, and blown out from the lower end of the shovel-shaped air gathering head 54, forming a strip-shaped air curtain on the right side of the product. When the equipment pushes the product to the right for demolding, the air curtain is used to block and buffer the product. When the product hits the surface of the air curtain, the product moves downward with the airflow and then falls accurately into the receiving hopper 12, effectively improving the material feeding accuracy of the equipment.

[0029] In addition, when the injection mold is changed, the slide bar 53 is slid left and right inside the positioning sleeve 52 according to the width of the injection mold and the product to adjust the left and right position of the shovel-shaped air gathering head 54, thereby improving the adaptability of the demolding component.

[0030] See Figures 1 to 5 An extruder 21 is fixedly mounted on the right side of the first mounting plate 2, and an air pump 22 is fixedly mounted on the upper end of the extruder 21. A second connecting plate 7 is fixedly connected to the left side surface of the first mounting plate 2, and a fixed mold 71 is fixedly connected to the left side surface of the second connecting plate 7. Two sets of positioning rods 4 are fixedly connected between the second mounting plate 3 and the first mounting plate 2, and a sliding plate 41 is slidably connected between the two sets of positioning rods 4. A fixing frame 43 is fixedly connected to the right side surface of the sliding plate 41, and the first connecting plate 5 is fixedly connected to the right end of the fixing frame 43. A hydraulic cylinder 31 is fixedly mounted on the left side of the second mounting plate 3, and the right end of the piston rod in the hydraulic cylinder 31 is fixedly connected to the sliding plate 41. The right side of the first connecting plate 5... A connecting seat 6 is fixedly connected to the surface. A moving mold 62 is fixedly connected to the right side of the connecting seat 6. A transmission plate 63 is slidably connected to the inner side of the connecting seat 6. Multiple sets of support springs 65 are fixedly connected between the transmission plate 63 and the moving mold 62. Multiple sets of ejector pins 64 are fixedly connected to the right side surface of the transmission plate 63. The right end of the ejector pin 64 is inserted into the moving mold 62. Two sets of first sliding grooves 42 are opened on the surface of the sliding plate 41. Two sets of second sliding grooves 51 are opened on the surface of the first connecting plate 5. Two sets of third sliding grooves 61 are opened on the surface of the connecting seat 6. An abutment rod 32 is slidably connected inside the first sliding groove 42, the second sliding groove 51 and the third sliding groove 61. The left end of the abutment rod 32 is fixedly connected to the transmission plate 63.

[0031] Specifically, during the injection molding process, the piston rod of the hydraulic cylinder 31 pushes the sliding plate 41, the first connecting plate 5, the connecting seat 6, and the moving mold 62 to the right, causing the moving mold 62 and the fixed mold 71 to close. At this time, the extruder 21 extrudes the molten plastic into the injection groove between the moving mold 62 and the fixed mold 71. After the product is shaped, the hydraulic cylinder 31 pulls the sliding plate 41, the first connecting plate 5, the connecting seat 6, and the moving mold 62 to the left. At this time, the product is removed from the injection groove inside the fixed mold 71. As the connecting seat 6 and the moving mold 62 move to the left, they will drive the transmission plate 63 and the abutment rod 32 to move to the left together. When the abutment rod 32 abuts against the surface of the second mounting plate 3, as the connecting seat 6 and the moving mold 62 continue to move to the left, the abutment rod 32 will push the transmission plate 63 to the right, which in turn pushes the ejector pin 64 to the right, ejecting the product to the right and demolding it.

[0032] At the same time, when the connecting seat 6 and the moving mold 62 move to the right, the transmission plate 63 will be automatically pushed to the left under the action of the support spring 65, so as to reset the transmission plate 63 and the ejector pin 64 for the next injection molding.

[0033] The working principle of this utility model is as follows: Through the cooperation of air pump 22, connecting valve 56, first air inlet pipe 57 and second air inlet pipe 58, airflow is sprayed out from shovel-shaped air gathering head 54, forming a strip-shaped air curtain on the right side of moving mold 62. The air curtain blocks the pushed-out product and blows the product downward under the action of airflow, so that the product can fall accurately into the receiving bucket 12 on the lower side, effectively avoiding product splashing and improving the feeding accuracy. At the same time, by making the slide rod 53 slide left and right inside the positioning sleeve 52, the left and right position of shovel-shaped air gathering head 54 can be adjusted, so that it can be used for molds of different types of products, improving the adaptability of the equipment.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A blower demolding structure, comprising a working platform (1), characterized in that: The upper surface of the work platform (1) is fixedly connected to the left and right sides of the second mounting plate (3) and the first mounting plate (2) respectively. The work platform (1) is provided with a material discharge groove (11) located between the second mounting plate (3) and the first mounting plate (2). A material receiving bucket (12) is provided on the lower side of the material discharge groove (11). A first connecting plate (5) that can slide left and right is provided between the second mounting plate (3) and the first mounting plate (2). A demolding assembly is provided on the upper side of the first connecting plate (5). The demolding assembly includes an air pump (22), a positioning sleeve (52), a slide rod (53), a shovel-shaped air gathering head (54), a locking screw (55), a connecting valve (56), a first air inlet pipe (57), and a second air inlet pipe (58).

2. The air blowing pipe demolding structure according to claim 1, characterized in that: The positioning sleeve (52) is fixedly connected to the middle position of the upper end of the first connecting plate (5), the slide rod (53) is slidably connected to the inside of the positioning sleeve (52), the shovel-shaped air-gathering head (54) is fixedly connected to the left end of the slide rod (53), and the locking screw (55) is threadedly connected to the upper surface of the positioning sleeve (52).

3. The air blowing pipe demolding structure according to claim 2, characterized in that: The connecting valve (56) is fixedly connected to the rear end of the first connecting plate (5), the two ends of the first air inlet pipe (57) are fixedly connected to the connecting valve (56) and the shovel-shaped air gathering head (54) respectively, and the two ends of the second air inlet pipe (58) are fixedly connected to the connecting valve (56) and the air pump (22) respectively.

4. The air blowing pipe demolding structure according to claim 1, characterized in that: An extruder (21) is fixedly installed on the right side of the first mounting plate (2), and an air pump (22) is fixedly installed on the upper end of the extruder (21). A second connecting plate (7) is fixedly connected to the left side surface of the first mounting plate (2), and a fixed mold (71) is fixedly connected to the left side surface of the second connecting plate (7).

5. The air blowing pipe demolding structure according to claim 1, characterized in that: Two sets of positioning rods (4) are fixedly connected between the second mounting plate (3) and the first mounting plate (2). A sliding plate (41) is slidably connected between the two sets of positioning rods (4). A fixing frame (43) is fixedly connected to the right side surface of the sliding plate (41). The first connecting plate (5) is fixedly connected to the right end of the fixing frame (43). A hydraulic cylinder (31) is fixedly installed on the left side of the second mounting plate (3). The right end of the piston rod in the hydraulic cylinder (31) is fixedly connected to the sliding plate (41).

6. The air blowing pipe demolding structure according to claim 5, characterized in that: A connecting seat (6) is fixedly connected to the right side surface of the first connecting plate (5). A moving mold (62) is fixedly connected to the right side of the connecting seat (6). A transmission plate (63) is slidably connected to the inner side of the connecting seat (6). Multiple sets of support springs (65) are fixedly connected between the transmission plate (63) and the moving mold (62). Multiple sets of ejector pins (64) are fixedly connected to the right side surface of the transmission plate (63). The right end of the ejector pin (64) is inserted into the moving mold (62).

7. The air blowing pipe demolding structure according to claim 6, characterized in that: The sliding plate (41) has two sets of first sliding grooves (42) on its surface, the first connecting plate (5) has two sets of second sliding grooves (51) on its surface, and the connecting seat (6) has two sets of third sliding grooves (61) on its surface. The first sliding groove (42), the second sliding groove (51) and the third sliding groove (61) are slidably connected to the inside of the sliding groove (42), the second sliding groove (51) and the third sliding groove (61), and the left end of the sliding groove (32) is fixedly connected to the transmission plate (63).

8. The air blowing pipe demolding structure according to claim 1, characterized in that: Two sets of linear guide rails (13) are fixedly connected between the first mounting plate (2) and the second mounting plate (3), and a protective cover (14) is slidably connected to the upper side of the linear guide rails (13).

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