Nylon zipper injection mold
By designing a flattening device in a nylon zipper injection mold, the rotating roller and extrusion roller are driven by a motor to flatten the cloth strips during the molding process, solving the problem of zippers being unusable due to wrinkles in the cloth strips, and achieving tight bonding and good molding of the zippers.
Patent Information
- Application Number
- CN202421525498.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-01
AI Technical Summary
When injection molding nylon zippers, the cloth strips are prone to wrinkles inside the mold, resulting in the mold not being closed tightly, affecting the tight bonding and use effect of the zippers.
A nylon zipper injection mold is designed, and a flattening device is adopted, including rectangular plates, motors, rotating rollers, anti-slip strips, extrusion rollers and springs. The rotating rollers and extrusion rollers are driven by the motor, so that the cloth strips are flattened during the molding process to avoid wrinkles.
It effectively avoids wrinkling of cloth strips during injection molding, ensures tight bonding and good molding of zippers, and solves the problem that wrinkles of cloth strips in the prior art, resulting in the inability to use zippers.
Smart Images
Figure CN222858600U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nylon zipper injection moulds, in particular to a nylon zipper injection mould. Background Art
[0002] An injection mold is a device that shapes and cools the flowing plastic liquid through the pattern inside the mold. When molding nylon zippers, injection molds are often used for molding and manufacturing. The cloth strips are placed inside the cloth strip grooves, the molds are merged together, and the flowing nylon plastic liquid is injected into the mold through the injection hole for cooling, thereby forming a zipper.
[0003] The inventor discovered in daily use of injection molds that when injection molding a nylon zipper, the nylon plastic and the cloth strip need to be fixed together, and then the cloth strip needs to be placed inside the mold to be molded together with the flowing nylon plastic during molding. When a section of the cloth strip is molded, the cloth strip is pulled inside the mold, which may cause wrinkles in the cloth strip, resulting in the mold not closing tightly, causing the injection molded zipper to be unable to be tightly combined, which in turn causes the zipper to be unusable, thereby causing an impact. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and provides a nylon zipper injection mold.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a nylon zipper injection mold, comprising a lower mold, a side surface of the lower mold is provided with a flattening device, the upper top of the lower mold is provided with an upper mold, the upper top of the lower mold is provided with a mold groove, the inside of the mold groove is provided with an adjustment device, the flattening device comprises a rectangular plate fixedly connected to the side surface of the lower mold, the side surface of the rectangular plate is fixedly connected to a motor, the output end of the motor is fixedly connected to a rotating roller, the upper top of the rectangular plate is fixedly connected to a telescopic rod, the upper top of the telescopic rod is fixedly connected to a rectangular block, and the surface of the rectangular block is rotatably connected to an extrusion roller.
[0006] The effect achieved by the above components is: under the action of the squeezing roller and the rotating roller, the cloth strip can be flattened, avoiding the phenomenon that the cloth strip is wrinkled and the zipper cannot be used when the zipper is injection molded. When the zipper is injection molded, the cloth strip is spread flat into the inside of the mold cavity, the upper mold and the lower mold are tightly fitted, and the molten nylon material is injected into the inside of the mold cavity for molding, thereby completing the manufacture of the nylon zipper.
[0007] Preferably, a first spring is sleeved on the surface of the telescopic rod, and two ends of the first spring are fixedly connected to the upper top of the rectangular plate and the bottom of the rectangular block respectively.
[0008] The effect achieved by the above components is that under the action of the first spring, the squeezing roller can fit tightly with the rotating roller, and then the cloth strip can be pulled out.
[0009] Preferably, an anti-slip strip is fixedly connected to the surface of the rotating roller, and an anti-slip strip is fixedly connected to the surface of the squeezing roller.
[0010] The effect achieved by the above components is that under the action of the anti-slip strip, the friction between the surfaces of the rotating roller and the squeezing roller is increased, thereby making it easier to draw out the cloth strip.
[0011] Preferably, an L-shaped plate is fixedly connected to the side of the rectangular block, a clamping rod is inserted into the side of the L-shaped plate, and the clamping rod is inserted into a circular groove opened on the side of the rectangular plate.
[0012] The effect achieved by the above components is that under the action of the clamping rod, after the rectangular block is pulled to a suitable position by the first spring, the rectangular block can be fixed, thereby avoiding displacement of the rectangular block.
[0013] Preferably, a second spring is sleeved on the surface of the clamping rod, and two ends of the second spring are respectively fixedly connected to the side surfaces of the L-shaped plate and an end of the clamping rod away from the L-shaped plate.
[0014] The effects achieved by the above components are as follows: under the action of the second spring, the clamping rod is inserted into the circular groove in a self-locking manner, thereby achieving a fixing effect. When the cloth strip needs to be flattened, the cloth strip is spread flat inside the mold groove, and one end of the cloth strip is placed on the surface of the squeezing roller and the rotating roller. After the zipper is formed for a section by the upper mold and the lower mold, the motor is started to rotate the rotating roller, and the cloth strip is pulled outward under the action of the anti-slip strip. Under the action of the squeezing roller and the rotating roller, the cloth strip can be flattened, thereby avoiding the phenomenon that the cloth strip is wrinkled and the zipper cannot be used when the zipper is injection molded. Under the action of the first spring, the squeezing roller can fit closely with the rotating roller, and then the cloth strip can be pulled out. Under the action of the second spring, the clamping rod is inserted into the circular groove in a self-locking manner, thereby achieving a fixing effect, thereby achieving the effect of pulling the cloth strip flat.
[0015] Preferably, the adjustment device includes a rectangular groove opened on the inner wall of the mold groove, a protrusion is inserted inside the rectangular groove, a retaining ring is fixedly connected to the surface of the protrusion, an annular groove is opened inside the rectangular groove, and an adjustment plate is fixedly connected to the side of the protrusion.
[0016] The effect achieved by the above components is: under the action of the clamping ring and the ring groove, the adjustment plate can be fixed inside the larger part of the mold groove, and then the size of the mold groove can be adjusted, so that the inside of the mold groove can prevent cloth strips of different widths from being placed for injection molding zippers.
[0017] Preferably, a locking ball is provided on the surface of the protrusion, and the locking ball is a rubber ball.
[0018] The effect achieved by the above components is that the cylindrical shape of the clamping ball enables the adjustment plate to be firmly fixed inside the rectangular groove.
[0019] Preferably, a magnetic block is fixedly connected to the side surface of the protrusion, and a magnetic plate is fixedly connected to the inside of the rectangular groove.
[0020] The effects achieved by the above components are as follows: under the action of the attraction between the positive and negative poles of the magnetic block and the magnetic plate, the adjustment plate can be fixed inside the rectangular groove, thereby achieving the effect of adjusting the size of the mold groove; when the size of the mold groove needs to be adjusted, the protrusion is inserted into the inside of the rectangular groove, and under the action of the clamping ring and the ring groove, the adjustment plate can be fixed inside the mold groove, thereby adjusting the size of the mold groove, thereby achieving the effect of placing cloth strips of different widths inside the mold groove for injection molding zippers; the cylindrical shape of the clamping ball allows the adjustment plate to be firmly fixed inside the rectangular groove, and under the action of the attraction between the positive and negative poles of the magnetic block and the magnetic plate, the adjustment plate can be fixed inside the rectangular groove, thereby achieving the effect of adjusting the size of the mold groove.
[0021] Compared with the prior art, the advantages and positive effects of the utility model are:
[0022] The utility model provides a flattening device. When it is necessary to flatten the cloth strip, the cloth strip is spread flat inside the mold groove, and one end of the cloth strip is placed on the surface of the squeezing roller and the rotating roller. After the zipper is formed into a section by the upper mold and the lower mold, the motor is started to rotate the rotating roller. Under the action of the anti-slip strip, the cloth strip is pulled outward. Under the action of the squeezing roller and the rotating roller, the cloth strip can be flattened, thereby avoiding the phenomenon that the cloth strip is wrinkled during injection molding of the zipper, resulting in the zipper being unusable. Under the action of the first spring, the squeezing roller can be closely fitted with the rotating roller, and then the cloth strip can be pulled out. Under the action of the second spring, the clamping rod is inserted into the circular groove in a self-locking manner, thereby achieving a fixing effect, thereby achieving the effect of pulling the cloth strip flat, thereby solving the problem that when the zipper is injection molded, the cloth strip may be wrinkled inside the mold when the cloth strip is placed in the cloth strip groove for pulling to perform the next section of injection molding. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 A three-dimensional structural schematic diagram of a nylon zipper injection mold is proposed for the utility model;
[0024] Figure 2 A schematic diagram of a flattening device for a nylon zipper injection mold is provided for the utility model;
[0025] Figure 3The utility model provides a schematic diagram of an adjusting device for a nylon zipper injection mold.
[0026] Legend: 1. Lower mold; 2. Leveling device; 21. Rectangular plate; 22. Motor; 23. Rotating roller; 24. Anti-slip strip; 25. First spring; 26. Telescopic rod; 27. Squeezing roller; 28. Rectangular block; 29. L-shaped plate; 210. Clamping rod; 211. Second spring; 3. Adjusting device; 31. Adjusting plate; 32. Rectangular groove; 33. Ring groove; 34. Clamping ring; 35. Clamping ball; 36. Magnetic block; 4. Upper mold; 5. Mold groove. DETAILED DESCRIPTION
[0027] Embodiment 1, as Figure 1-3 As shown, a nylon zipper injection mold comprises a lower mold 1, a flattening device 2 is arranged on the side of the lower mold 1, an upper mold 4 is arranged on the upper top of the lower mold 1, a mold groove 5 is opened on the upper top of the lower mold 1, and an adjusting device 3 is arranged inside the mold groove 5. When the zipper is injection molded, the cloth strip is spread flat into the mold groove 5, the upper mold 4 is tightly fitted with the lower mold 1, and the molten nylon material is injected into the mold groove 5 for molding, thereby completing the manufacture of the nylon zipper.
[0028] Reference Figure 2The flattening device 2 includes a rectangular plate 21 fixedly connected to the side of the lower mold 1, a motor 22 fixedly connected to the side of the rectangular plate 21, a rotating roller 23 fixedly connected to the output end of the motor 22, a telescopic rod 26 fixedly connected to the upper top of the rectangular plate 21, a rectangular block 28 fixedly connected to the upper top of the telescopic rod 26, and a squeezing roller 27 rotatably connected to the surface of the rectangular block 28. Under the action of the squeezing roller 27 and the rotating roller 23, the cloth strip can be flattened, avoiding the phenomenon that the cloth strip is wrinkled and the zipper cannot be used when the zipper is injection molded. When the zipper is injection molded, the cloth strip is flattened into the interior of the mold groove 5, the upper mold 4 is tightly fitted with the lower mold 1, and the molten nylon material is injected into the interior of the mold groove 5 for injection molding. The nylon zipper is formed by forming, and then the manufacturing of the nylon zipper is completed. The surface of the telescopic rod 26 is sleeved with a first spring 25. The two ends of the first spring 25 are fixedly connected to the upper top of the rectangular plate 21 and the bottom of the rectangular block 28 respectively. Under the action of the first spring 25, the squeezing roller 27 can fit tightly with the rotating roller 23, and then the cloth strip can be pulled out. The surface of the rotating roller 23 is fixedly connected with an anti-slip strip 24, and the surface of the squeezing roller 27 is fixedly connected with an anti-slip strip 24. Under the action of the anti-slip strip 24, the friction between the rotating roller 23 and the squeezing roller 27 is increased, so that the cloth strip can be more conveniently drawn out. The side of the rectangular block 28 is fixedly connected with an L-shaped plate 29, and the side of the L-shaped plate 29 is inserted with a The clamping rod 210 is inserted into the circular groove opened on the side of the rectangular plate 21. Under the action of the clamping rod 210, the rectangular block 28 is pulled to a suitable position by the first spring 25, and the rectangular block 28 can be fixed, thereby avoiding the displacement of the rectangular block 28. The surface of the clamping rod 210 is sleeved with a second spring 211. The two ends of the second spring 211 are respectively fixedly connected to the side of the L-shaped plate 29 and the end of the clamping rod 210 away from the L-shaped plate 29. Under the action of the second spring 211, the clamping rod 210 is inserted into the circular groove in a self-locking manner, thereby achieving a fixing effect. When the cloth strip needs to be flattened, the cloth strip is laid flat on the inside of the mold groove 5, and one end of the cloth strip is placed on the extrusion The surfaces of the roller 27 and the rotating roller 23, after the zipper is formed for a section by the upper mold 4 and the lower mold 1, the motor 22 is started to rotate the rotating roller 23, and the cloth strip is pulled outward under the action of the anti-slip strip 24, and the cloth strip can be flattened under the action of the squeezing roller 27 and the rotating roller 23, thereby avoiding the phenomenon that the cloth strip is wrinkled and cannot be used when the zipper is injection molded. Under the action of the first spring 25, the squeezing roller 27 can fit tightly with the rotating roller 23, and then the cloth strip can be pulled out, and under the action of the second spring 211, the clamping rod 210 is inserted into the circular groove in a self-locking manner, thereby achieving the fixing effect, thereby achieving the effect of pulling the cloth strip flat.
[0029] Reference Figure 3The adjusting device 3 includes a rectangular groove 32 opened on the inner wall of the mold groove 5, a convex block is inserted inside the rectangular groove 32, a snap ring 34 is fixedly connected to the surface of the convex block, an annular groove 33 is opened inside the rectangular groove 32, and an adjusting plate 31 is fixedly connected to the side of the convex block. Under the action of the snap ring 34 and the annular groove 33, the adjusting plate 31 can be fixed inside the mold groove 5, so that the size of the mold groove 5 can be adjusted, so that the mold groove 5 can prevent the placement of cloth strips of different widths for injection molding zippers. A card ball 35 is provided on the surface of the convex block, and the card ball 35 is a rubber ball. The cylindrical shape of the card ball 35 allows the adjusting plate 31 to be firmly fixed inside the rectangular groove 32. A magnetic block 36 is fixedly connected to the side of the convex block, and a magnetic plate is fixedly connected to the inside of the rectangular groove 32. Under the action of the attraction between the block 36 and the positive and negative poles of the magnetic plate, the adjustment plate 31 can be fixed inside the rectangular groove 32, thereby achieving the effect of adjusting the size of the mold groove 5. When the size of the mold groove 5 needs to be adjusted, the protrusion is inserted into the inside of the rectangular groove 32. Under the action of the retaining ring 34 and the annular groove 33, the adjustment plate 31 can be fixed inside the mold groove 5, thereby adjusting the size of the mold groove 5, thereby achieving the effect of placing cloth strips of different widths inside the mold groove 5 for injection molding zippers. The cylindrical shape of the retaining ball 35 allows the adjustment plate 31 to be firmly fixed inside the rectangular groove 32. Under the action of the attraction between the magnetic block 36 and the positive and negative poles of the magnetic plate, the adjustment plate 31 can be fixed inside the rectangular groove 32, thereby achieving the effect of adjusting the size of the mold groove 5.
[0030] Working principle: when it is necessary to use a nylon zipper injection mold, when the zipper is injection molded, the cloth strip is spread flat into the inside of the mold groove 5, the upper mold 4 is tightly fitted with the lower mold 1, and the molten nylon material is injected into the inside of the mold groove 5 for molding, thereby completing the manufacture of the nylon zipper. When it is necessary to flatten the cloth strip, the cloth strip is spread flat inside the mold groove 5, and one end of the cloth strip is placed on the surface of the squeezing roller 27 and the rotating roller 23. After the zipper is molded for a section by the upper mold 4 and the lower mold 1, the motor 22 is started to rotate the rotating roller 23. Under the action of the anti-slip strip 24, the cloth strip is pulled outward. Under the action of the squeezing roller 27 and the rotating roller 23, the cloth strip can be flattened, thereby avoiding the phenomenon that the cloth strip is wrinkled and the zipper cannot be used when the zipper is injection molded. Under the action of the first spring 25, the squeezing roller 27 can be aligned with the rotating roller 23. It fits tightly, and then the cloth strip can be pulled out. Under the action of the second spring 211, the clamping rod 210 is inserted into the circular groove in a self-locking manner, thereby achieving a fixing effect, thereby achieving the effect of pulling the cloth strip flat. When the size of the mold groove 5 needs to be adjusted, the protrusion is inserted into the inside of the rectangular groove 32. Under the action of the clamping ring 34 and the annular groove 33, the adjustment plate 31 can be fixed inside the mold groove 5, and then the size of the mold groove 5 can be adjusted, thereby achieving the effect of preventing cloth strips of different widths from being placed inside the mold groove 5 for injection molding of zippers. The cylindrical shape of the clamping ball 35 allows the adjustment plate 31 to be firmly fixed inside the rectangular groove 32. Under the action of the attraction between the positive and negative poles of the magnetic block 36 and the magnetic plate, the adjustment plate 31 can be fixed inside the rectangular groove 32, thereby achieving the effect of adjusting the size of the mold groove 5.
Claims
1. A nylon zipper injection mold, comprising a lower mold (1), characterized in that: A leveling device (2) is provided on the side of the lower mold (1), an upper mold (4) is provided on the upper top of the lower mold (1), a mold groove (5) is provided on the upper top of the lower mold (1), an adjusting device (3) is provided inside the mold groove (5), the leveling device (2) comprises a rectangular plate (21) fixedly connected to the side of the lower mold (1), a motor (22) is fixedly connected to the side of the rectangular plate (21), a rotating roller (23) is fixedly connected to the output end of the motor (22), a telescopic rod (26) is fixedly connected to the upper top of the rectangular plate (21), a rectangular block (28) is fixedly connected to the upper top of the telescopic rod (26), and a squeezing roller (27) is rotatably connected to the surface of the rectangular block (28).
2. The nylon zipper injection mold according to claim 1, characterized in that: A first spring (25) is sleeved on the surface of the telescopic rod (26), and two ends of the first spring (25) are fixedly connected to the upper top of the rectangular plate (21) and the bottom of the rectangular block (28) respectively.
3. The nylon zipper injection mold according to claim 2, characterized in that: The surface of the rotating roller (23) is fixedly connected with an anti-slip strip (24), and the surface of the squeezing roller (27) is fixedly connected with an anti-slip strip (24).
4. The nylon zipper injection mold according to claim 3, characterized in that: An L-shaped plate (29) is fixedly connected to the side of the rectangular block (28), a clamping rod (210) is inserted into the side of the L-shaped plate (29), and the clamping rod (210) is inserted into a circular groove opened on the side of the rectangular plate (21).
5. The nylon zipper injection mold according to claim 4, characterized in that: A second spring (211) is sleeved on the surface of the clamping rod (210), and two ends of the second spring (211) are respectively fixedly connected to one end of the clamping rod (210) away from the L-shaped plate (29) on the side surface of the L-shaped plate (29).
6. The nylon zipper injection mold according to claim 5, characterized in that: The adjusting device (3) comprises a rectangular groove (32) formed on the inner wall of the die groove (5), a convex block is inserted into the interior of the rectangular groove (32), a retaining ring (34) is fixedly connected to the surface of the convex block, an annular groove (33) is formed in the interior of the rectangular groove (32), and an adjusting plate (31) is fixedly connected to the side of the convex block.
7. The nylon zipper injection mold according to claim 6, characterized in that: A locking ball (35) is arranged on the surface of the protrusion, and the locking ball (35) is a rubber ball.
8. The nylon zipper injection mold according to claim 7, characterized in that: A magnetic block (36) is fixedly connected to the side surface of the protrusion, and a magnetic plate is fixedly connected inside the rectangular groove (32).