Accessory injection molding device

Abstract

The utility model relates to the technical field of accessory injection molding, and particularly discloses an accessory injection molding device which comprises a bottom die and an upper die, the size of the bottom die is matched with that of the upper die, die cores are installed on the surfaces of the bottom die and the upper die, a plurality of rod holes are formed in the surface of the bottom die, and the rod holes are communicated with the bottom die. A plurality of ejector rods are fixedly connected to the surface of the upper die, a sealing structure is arranged on the surface of the bottom die and comprises two extension plates, the two extension plates are fixedly connected with the surface of the bottom die and the surface of the lower die respectively, rectangular boxes are fixedly connected to the surfaces of the two extension plates, bolts are slidably inserted into the surfaces of the rectangular boxes, and the bolts are fixedly connected with the surfaces of the bottom die and the lower die. A driving arm is slidably inserted into the inner wall of the rectangular box, two circular grooves are formed in the surface of the driving arm, and the size of the circular grooves is matched with that of the plug pins. According to the mold, the problem that dust easily enters the mold from a gap when the mold is placed due to the fact that the gap exists between the upper mold and the lower mold when the mold is placed is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of accessory injection molding, in particular to an accessory injection molding device. Background Art

[0002] Accessory injection molding is a common manufacturing method used to produce various types of accessories. In the medical field, accessories for ultrasound equipment usually need to have a high degree of precision and stability to ensure the normal operation and accuracy of the equipment. Injection molding technology can produce accessories with stable quality and beautiful appearance, and can be produced quickly and in large quantities to meet the needs of medical device manufacturers.

[0003] Existing related technologies often have the following defects: when using injection molds to injection mold medical accessories, because the injection-molded ultrasonic equipment accessories need to ensure high surface flatness and cleanliness requirements, there is a gap between the upper mold and the lower mold when the existing mold is placed. Therefore, dust can easily enter the mold through the gap when it is placed, and may be clamped in the accessories by the thermoplastic material during the processing process, resulting in bubbles, air pockets and other defects.

[0004] Therefore, the utility model provides a fitting injection molding device. Utility Model Content

[0005] The utility model aims to solve the defect in the prior art that a gap exists between the upper mold and the lower mold when the mold is placed, so dust easily enters the mold through the gap when the mold is placed, and proposes an accessory injection molding device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an accessory injection molding device, comprising a bottom mold and an upper mold, the sizes of the bottom mold and the upper mold are adapted, the surfaces of the bottom mold and the upper mold are both installed with mold cores, the surface of the bottom mold is provided with a plurality of rod holes, the surface of the upper mold is fixedly connected with a plurality of push rods, the surface of the bottom mold is provided with a sealing structure, the sealing structure comprises two extension plates, the two extension plates are respectively fixedly connected to the surfaces of the bottom mold and the lower mold, the surfaces of the two extension plates are both fixedly connected with a rectangular box, the surface of the rectangular box is slidably inserted with a latch, the inner wall of the rectangular box is slidably inserted with a driving arm, the surface of the driving arm is provided with two circular grooves, the size of the circular grooves is adapted to the size of the latch, the surfaces of the two driving arms are respectively fixedly connected with a first baffle and a second baffle, the sizes of the first baffle and the second baffle are adapted.

[0007] The effect achieved by the above components is: by setting a sealing structure, the gap between the bottom mold and the upper mold is sealed, thereby preventing dust from entering the mold through the gap, thereby improving the quality of the mold for injection molding of ultrasonic equipment accessories.

[0008] Preferably, a convex strip is fixedly connected to one side of the first baffle close to the second baffle, and a plurality of grooves are provided on one side of the second baffle close to the first baffle, and the size of the convex strip matches the size of the grooves.

[0009] The effect achieved by the above components is: the first baffle will drive the convex strip to slide into the groove, and the convex strip will completely slide into the groove, thereby further improving the airtightness of the fit between the first baffle and the second baffle, and then improving the airtightness of the gap between the bottom mold and the upper mold.

[0010] Preferably, the arc surface of the latch is sleeved with a first spring, and two ends of the first spring are fixedly connected to the latch and the rectangular box respectively.

[0011] The effect achieved by the above components is that the pin will be inserted into the circular groove with the help of the contraction force of the first spring. The first spring can improve the stability of the pin inserted into the circular groove, thereby preventing the pin from falling out of the circular groove due to shaking.

[0012] Preferably, guide grooves are provided on both sides of the driving arm, the inner walls of the two guide grooves are slidably connected to guide arms, and the two guide arms are fixedly connected to the surface of the rectangular box.

[0013] The effect achieved by the above components is that the movement of the driving arm causes the guide arm to slide along the inner wall of the guide groove, and the guide arm limits the moving path of the driving arm, thereby preventing the driving arm from escaping from the rectangular box.

[0014] Preferably, the inner walls of several of the rod holes are provided with a protective structure, and the protective structure includes two rectangular grooves, and the two rectangular grooves are opened on the inner walls of the rod holes, and the inner walls of the two rectangular grooves are fixedly connected with a round rod, and the surface of the round rod is slidably connected with a slider, and the surface of the round rod is sleeved with a second spring, and the two ends of the second spring are respectively fixedly connected to the surface of the slider and the inner wall of the rectangular groove, and the side where the two sliders are close to each other is fixedly connected with a round box, and the round box is slidably connected to the inner wall of the rod hole, and the inner wall of the round box is fixedly connected with several rubber columns, and the end of the rubber column away from the round box is fixedly connected with a box cover.

[0015] The effect achieved by the above components is: by setting up a protective structure, it is convenient to buffer the push rod inserted into the rod hole, thereby avoiding excessive impact force of the push rod, which may cause damage to the push rod and the rod hole.

[0016] Preferably, a protective pad is fixedly connected to the surface of the box cover, and the protective pad is made of rubber.

[0017] The effect achieved by the above components is that the ejector rod squeezes the protective pad, which is made of rubber, thereby preventing the ejector rod from directly hitting the surface of the box cover and causing wear of the box cover.

[0018] Preferably, the inner wall of the rod hole is fixedly connected to a limiting column.

[0019] The effect achieved by the above components is: when the round box moves to a suitable position, the round box will fit tightly against the surface of the limiting column, and the limiting column limits the moving path of the round box, thereby preventing the second spring from being crushed due to excessive movement of the round box.

[0020] In summary:

[0021] 1. In the utility model, by providing a sealing structure, the two driving arms are pulled toward each other. During the movement, the two driving arms respectively drive the first baffle and the second baffle to move toward each other. When the first baffle and the second baffle are tightly fitted together, the latch is pressed and the latch is inserted into the circular groove. The latch reaches the position to limit the driving arms, and then limits the positions of the first baffle and the second baffle, thereby preventing dust from entering the mold through the gap, thereby improving the quality of the mold for injection molding of ultrasonic equipment accessories.

[0022] 2. In the utility model, a protective structure is provided, so that after the push rod is inserted into the rod hole, the push rod will squeeze the box cover, the box cover will squeeze the rubber column, the rubber column will squeeze the round box, and the round box will be squeezed to drive the slider to slide along the surface of the round rod. The movement of the slider will compress the second spring, and the rubber column can buffer the force of squeezing the box cover, and then buffer the force of squeezing the push rod. The second spring can further increase the force of squeezing the push rod, which is convenient for buffering the push rod inserted into the rod hole, thereby avoiding excessive impact force of the push rod, which may cause damage to the push rod and the rod hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 2 This is a schematic structural diagram of the utility model from another angle;

[0025] Figure 3 This is a structural diagram of the first baffle of the present invention;

[0026] Figure 4 For this utility model Figure 3 A magnified view of point A in the figure;

[0027] Figure 5 For this utility model Figure 1 Schematic diagram of the local structure in;

[0028] Figure 6 This is a schematic diagram of the disassembled structure of the protective structure of the utility model.

[0029] Legend: 1. Bottom mold; 2. Upper mold; 3. Mold core; 4. Ejector rod; 5. Rod hole; 6. Sealing structure; 601. Extension plate; 602. Rectangular box; 603. Latch; 604. Driving arm; 605. First baffle; 606. Second baffle; 607. Raised strip; 608. Groove; 609. First spring; 610. Guide groove; 611. Guide arm; 7. Protective structure; 71. Rectangular groove; 72. Round rod; 73. Slider; 74. Second spring; 75. Round box; 76. Box cover; 77. Rubber column; 78. Protective pad; 79. Limit column. DETAILED DESCRIPTION

[0030] Reference Figure 1 As shown, the utility model provides a technical solution: an accessory injection molding device, including a bottom mold 1 and an upper mold 2, the bottom mold 1 and the upper mold 2 are of matching size, the surfaces of the bottom mold 1 and the upper mold 2 are both installed with mold cores 3, the surface of the bottom mold 1 is provided with a plurality of rod holes 5, the surface of the upper mold 2 is fixedly connected with a plurality of ejector pins 4, the surface of the bottom mold 1 is provided with a sealing structure 6, by providing the sealing structure 6, it is convenient to seal the gap between the bottom mold 1 and the upper mold 2, thereby preventing dust from entering the mold through the gap, thereby improving the quality of the mold for the injection molding of ultrasonic equipment accessories. The inner walls of the plurality of rod holes 5 are provided with a protective structure 7, by providing the protective structure 7, it is convenient to cushion the ejector pins 4 inserted into the rod holes 5, thereby preventing the ejector pins 4 from being damaged by excessive impact force, thereby preventing the ejector pins 4 and the rod holes 5 from being damaged.

[0031] The specific configuration and function of the sealing structure 6 and the protective structure 7 will be described in detail below.

[0032] Reference Figure 2 and Figure 3 and Figure 4As shown, in this embodiment: the sealing structure 6 includes two extension plates 601, and the two extension plates 601 are fixedly connected to the surfaces of the bottom mold 1 and the lower mold respectively, and the surfaces of the two extension plates 601 are fixedly connected to a rectangular box 602, and a latch 603 is slidably inserted into the surface of the rectangular box 602, and a driving arm 604 is slidably inserted into the inner wall of the rectangular box 602, and two circular grooves are provided on the surface of the driving arm 604, and the size of the circular grooves is adapted to the size of the latch 603, and the surfaces of the two driving arms 604 are fixedly connected to a first baffle 605 and a second baffle 606, and the size of the first baffle 605 is adapted to the size of the second baffle 606. A ridge 607 is fixedly connected to the side of the first baffle 605 near the second baffle 606. A plurality of grooves 608 are formed on the side of the second baffle 606 near the first baffle 605. The size of the ridges 607 matches the size of the grooves 608. The first baffle 605 drives the ridges 607 to slide into the grooves 608. The ridges 607 slide completely into the grooves 608, thereby further improving the airtightness of the fit between the first baffle 605 and the second baffle 606, and further improving the airtightness of the gap between the bottom mold 1 and the upper mold 2. The arc surface of the latch 603 is covered with a first spring 609. The two ends of the first spring 609 are respectively fixedly connected to the latch 603 and the rectangular box 602. The latch 603 is inserted into the circular groove by the contraction force of the first spring 609. The first spring 609 improves the stability of the latch 603 in the circular groove, thereby preventing the latch 603 from falling out of the circular groove due to shaking. Guide grooves 610 are provided on both sides of the driving arm 604, and the inner walls of the two guide grooves 610 are slidably connected to guide arms 611. The two guide arms 611 are fixedly connected to the surface of the rectangular box 602. The movement of the driving arm 604 will cause the guide arm 611 to slide along the inner wall of the guide groove 610. The guide arm 611 limits the moving path of the driving arm 604, thereby preventing the driving arm 604 from escaping from the rectangular box 602.

[0033] Reference Figure 5 and Figure 6As shown, specifically, the protective structure 7 includes two rectangular grooves 71, both of which are opened on the inner wall of the rod hole 5. The inner walls of the two rectangular grooves 71 are fixedly connected to round rods 72, and the surfaces of the round rods 72 are slidably connected to sliders 73. The surface of the round rods 72 is covered with second springs 74. The two ends of the second spring 74 are respectively fixedly connected to the surfaces of the sliders 73 and the inner walls of the rectangular grooves 71. The sides of the two sliders 73 close to each other are fixedly connected to a round box 75. The round box 75 is slidably connected to the inner wall of the rod hole 5. The inner wall of the round box 75 is fixedly connected to a plurality of rubber columns 77. The end of the rubber column 77 away from the round box 75 is fixedly connected to the box cover 76. The surface of the box cover 76 is fixedly connected to a protective pad 78 made of rubber. The protective pad 78 will be squeezed by the push rod 4. The protective pad 78 is made of rubber, so as to prevent the push rod 4 from directly hitting the surface of the box cover 76 and causing wear of the box cover 76. The inner wall of the rod hole 5 is fixedly connected to the limiting column 79. When the round box 75 moves to a suitable position, the round box 75 will fit tightly against the surface of the limiting column 79. The limiting column 79 limits the moving path of the round box 75, thereby preventing the round box 75 from moving too far and causing the second spring 74 to be crushed.

[0034] Working principle: when it is necessary to seal the gap between the bottom mold 1 and the upper mold 2, first pull the two latches 603. The latches 603 will slide in the rectangular box 602 and gradually come out of the circular groove. When the latches 603 move, the first spring 609 will be stretched. After the latches 603 come out of the circular groove, the two driving arms 604 will be pulled toward each other. The movement of the driving arms 604 will cause the guide arms 611 to slide along the inner wall of the guide groove 610. The guide arms 611 can limit the movement path of the driving arms 604, thereby preventing the driving arms 604 from coming out of the rectangular box 602. During the movement, the two driving arms 604 will respectively drive the first baffle 605 and the second baffle 60 6 move in the direction of approaching each other. When the first baffle 605 and the second baffle 606 move to appropriate positions, the first baffle 605 will drive the ridge 607 to slide into the groove 608. When the first baffle 605 and the second baffle 606 are tightly fitted together, the ridge 607 will completely slide into the groove 608, thereby further improving the airtightness of the fit between the first baffle 605 and the second baffle 606, and further improving the airtightness of the gap between the bottom mold 1 and the upper mold 2. Then, the latch 603 is released. The latch 603 is inserted into the circular groove with the help of the contraction force of the first spring 609. The latch 603 reaches the position of limiting the driving arm 604, thereby limiting the position of the first baffle 605 and the second baffle 606.

[0035] When it is necessary to buffer the push rod 4 inserted into the rod hole 5, after the push rod 4 is inserted into the rod hole 5, the push rod 4 will squeeze the protective pad 78. The movement of the protective pad 78 will squeeze the box cover 76. The box cover 76 will squeeze the rubber column 77. The rubber column 77 will squeeze the round box 75. The round box 75 is squeezed and drives the slider 73 to slide along the surface of the round rod 72. The movement of the slider 73 will compress the second spring 74. The rubber column 77 reaches the force of squeezing the buffer box cover 76, thereby buffering the force of squeezing the push rod 4. The second spring 74 further increases the force of squeezing the push rod 4. When the round box 75 moves to a suitable position, the round box 75 will fit tightly against the surface of the limiting column 79. The limiting column 79 reaches the point of limiting the moving path of the round box 75, thereby preventing the round box 75 from moving too far and causing the second spring 74 to be crushed.

[0036] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

Claims

1. An accessory injection molding device, comprising a bottom mold (1) and an upper mold (2), wherein the bottom mold (1) and the upper mold (2) are matched in size, mold cores (3) are installed on the surfaces of the bottom mold (1) and the upper mold (2), a plurality of rod holes (5) are opened on the surface of the bottom mold (1), a plurality of ejector rods (4) are fixedly connected to the surface of the upper mold (2), and a sealing structure (6) is provided on the surface of the bottom mold (1), characterized in that: The sealing structure (6) comprises two extension plates (601), the two extension plates (601) are fixedly connected to the surface of the bottom mold (1) and the lower mold respectively, the surfaces of the two extension plates (601) are fixedly connected to a rectangular box (602), the surface of the rectangular box (602) is slidably inserted with a latch (603), the inner wall of the rectangular box (602) is slidably inserted with a driving arm (604), the surface of the driving arm (604) is provided with two circular grooves, the size of the circular grooves is matched with the size of the latch (603), the surfaces of the two driving arms (604) are fixedly connected to a first baffle (605) and a second baffle (606), the size of the first baffle (605) and the second baffle (606) are matched.

2. The accessory injection molding device according to claim 1, characterized in that: A convex strip (607) is fixedly connected to one side of the first baffle (605) close to the second baffle (606), and a plurality of grooves (608) are provided on one side of the second baffle (606) close to the first baffle (605), and the size of the convex strip (607) matches the size of the groove (608).

3. The accessory injection molding device according to claim 1, characterized in that: The arc surface of the latch (603) is sleeved with a first spring (609), and two ends of the first spring (609) are respectively fixedly connected to the latch (603) and the rectangular box (602).

4. The accessory injection molding device according to claim 1, characterized in that: Guide grooves (610) are provided on both sides of the driving arm (604), the inner walls of the two guide grooves (610) are slidably connected with guide arms (611), and the two guide arms (611) are fixedly connected to the surface of the rectangular box (602).

5. The accessory injection molding device according to claim 1, characterized in that: The inner walls of the plurality of rod holes (5) are each provided with a protective structure (7), the protective structure (7) comprising two rectangular grooves (71), the two rectangular grooves (71) being each opened on the inner wall of the rod hole (5), the inner walls of the two rectangular grooves (71) being fixedly connected with a round rod (72), the surface of the round rod (72) being slidably connected with a slider (73), the surface of the round rod (72) being sleeved with a second spring (74), the two ends of the second spring (74) being respectively fixedly connected with the surface of the slider (73) and the inner wall of the rectangular groove (71), the sides of the two sliders (73) being close to each other being fixedly connected with a round box (75), the round box (75) being slidably connected with the inner wall of the rod hole (5), the inner wall of the round box (75) being fixedly connected with a plurality of rubber columns (77), and the end of the rubber column (77) away from the round box (75) being fixedly connected with a box cover (76).

6. The accessory injection molding device according to claim 5, characterized in that: A protective pad (78) is fixedly connected to the surface of the box cover (76), and the protective pad (78) is made of rubber.

7. The accessory injection molding device according to claim 5, characterized in that: The inner wall of the rod hole (5) is fixedly connected to a limiting column (79).

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