Gripper clamp for injection-stretch-blow dust cover mold
By combining the bottom and height-limiting clamping mechanism with the ring groove protrusion design of the clamp, the deformation problem of the injection blow molding dust cover during clamping is solved, achieving stable clamping and reducing scratches, thus improving product quality.
Patent Information
- Application Number
- CN202520099044.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-01-16
AI Technical Summary
Traditional clamps, when gripping injection stretch blow dust covers, can cause excessive force to pull off due to varying product undercuts, resulting in product stretching deformation and dimensional instability.
It employs a bottom clamping mechanism and a height-limiting clamping mechanism. The bottom is clamped by the first and second main grippers, and the top is clamped by the first and second height-limiting auxiliary grippers. Combined with the ring groove and protrusion design, the clamping effect is enhanced, and a removable elastic insert is used to reduce scratches.
It effectively prevents product stretching and deformation, ensures dimensional stability, and avoids surface scratches through elastic inserts, thereby improving the clamping effect.
Smart Images
Figure CN223918647U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of clamping technology for moving parts, and in particular to a gripper clamping tool for a dust cover mold for injection stretch blow molding. Background Technology
[0002] Products are produced using conventional injection stretch blow molding dust cover molds (such as...) Figure 1 After the dust cover shown is inserted, the product needs to be manually clamped by a machine for automatic removal. Then it is placed on the cutting plate for cutting the bottom process residue. The traditional method of making a clamp is to clamp the product directly at the rear of the product. After rotating the station, it is placed on the cutting plate for processing. However, when the clamp removes the product from the mold, because the undercut at the opening of the product is different for each product, and sometimes the undercut is large, the force of release is often too large, which stretches the product and causes the natural length of the product to change greatly, and the size is very unstable. Utility Model Content
[0003] To address the technical problems existing in the background art, this utility model proposes a gripper clamp for injection stretch blow molding dust cover molds.
[0004] This utility model proposes a gripper clamp for a dust cover mold of injection stretch blow molding, which is used to clamp the dust cover. It includes a bottom clamping mechanism for clamping the outer side of the bottom of the dust cover. Unlike the prior art, the bottom clamping mechanism includes a first main gripper and a second main gripper. The first main gripper and the second main gripper are arranged opposite to each other for clamping the outer side of the bottom of the dust cover.
[0005] It also includes a height-limiting clamping mechanism for clamping the outer side of the top of the injection stretch blow dust cover. The height-limiting clamping mechanism includes a first height-limiting auxiliary claw and a second height-limiting auxiliary claw. The first height-limiting auxiliary claw and the second height-limiting auxiliary claw are arranged opposite to each other and are used to clamp the outer side of the top of the injection stretch blow dust cover.
[0006] When the product is blow molded, after the mold is opened, the product is first held by the bottom clamping mechanism and the height limiting clamping mechanism. Then, when the product is demolded upwards, the dust cover body is positioned by the height limiting clamping mechanism, which solves the problem of being stretched and deformed.
[0007] As a further optimization of this utility model, the outer side of the injection stretch blow dust cover has an annular groove to make the injection stretch blow dust cover have a corrugated structure. Both the first main gripper and the second main gripper have a first protrusion that matches the annular groove at the bottom of the injection stretch blow dust cover, which further increases the clamping effect on the injection stretch blow dust cover.
[0008] As a further optimization of this utility model, both the first height limiting auxiliary claw and the second height limiting auxiliary claw have a second protrusion that matches the annular groove on the top of the injection blow molding dust cover, which further increases the clamping effect on the injection blow molding dust cover.
[0009] As a further optimization of this utility model, the outer diameter of the second protrusion is smaller than the outer diameter of the first protrusion, which further enhances the effect of preventing deformation of the injection blow molding dust cover.
[0010] As a further optimization of this utility model, the first height-limiting auxiliary claw is detachably mounted on the first main gripper; and / or
[0011] The second height limiting auxiliary claw is detachably mounted on the second main gripper. It only requires the drive mechanism that drives the bottom clamping mechanism to move and does not require an additional drive mechanism. When the bottom clamping mechanism clamps the injection blow-pull dust cover, the height limiting clamping mechanism also clamps the injection blow-pull dust cover.
[0012] As a further optimization of this utility model, a first elastic insert is detachably installed on the side of the first height limiting claw opposite to the injection blow molding dust cover, and the first elastic insert contacts the injection blow molding dust cover; and / or:
[0013] The second height-limiting auxiliary claw has a second elastic insert detachably mounted on the side opposite to the injection stretch blow molding dust cover, and the second elastic insert contacts the injection stretch blow molding dust cover. The first and second height-limiting auxiliary claws are made of aluminum alloy. To further reduce scratches on the injection stretch blow molding dust cover, the first and second elastic inserts are provided, and the first and second elastic inserts can be made of nylon.
[0014] As a further optimization of this utility model, a first gap is formed between the first main gripper and the second main gripper, and a second gap is formed between the first height-limiting auxiliary gripper and the second height-limiting auxiliary gripper.
[0015] In this utility model, the proposed gripper clamp for the injection blow molding dust cover is used to hold the product after the mold is opened during blow molding. The product is held by the bottom clamping mechanism and the height limiting clamping mechanism. When the product is demolded upwards, the dust cover body is positioned by the height limiting clamping mechanism, thus solving the problem of being stretched and deformed. Furthermore, the surface scratches of the injection blow molding dust cover are avoided by the setting of the first elastic insert and / or the second elastic insert.
[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0017] Figure 1A schematic diagram of the structure of an injection stretch blow dust cover produced by an injection stretch blow dust cover mold;
[0018] Figure 2 This is a schematic diagram of the structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the dust cover clamped during injection blow molding according to this utility model;
[0020] In the diagram: 1. First main gripper; 2. Second main gripper; 3. First height limiting auxiliary gripper; 4. Second height limiting auxiliary gripper; 5. Injection stretch blow dust cover; 50. Annular groove; 6. First protrusion; 7. Second protrusion; 8. First elastic insert; 9. Second elastic insert; 10. First gap; 11. Second gap. Detailed Implementation
[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0022] like Figures 2-3 The illustration shows a gripper for a blow molding dust cover, used to clamp a blow molding dust cover 5. It includes a bottom clamping mechanism for clamping the outer side of the bottom of the blow molding dust cover 5. The bottom clamping mechanism includes a first main gripper 1 and a second main gripper 2. The first main gripper 1 and the second main gripper 2 are arranged opposite each other to clamp the outer side of the bottom of the blow molding dust cover 5. The first main gripper 1 and the second main gripper 2 move closer or further apart to clamp or release the blow molding dust cover. Specifically, the driving mechanism that drives the first main gripper 1 and the second main gripper 2 can be a cylinder or electric cylinder in the prior art (the driving mechanism that drives the first main gripper 1 and the second main gripper 2 is in the prior art and is not shown in the figure).
[0023] It also includes a height limiting clamping mechanism for clamping the outer side of the top of the injection stretch blow dust cover 5. The height limiting clamping mechanism includes a first height limiting auxiliary claw 3 and a second height limiting auxiliary claw 4. The first height limiting auxiliary claw and the second height limiting auxiliary claw 4 are arranged opposite to each other and are used to clamp the outer side of the top of the injection stretch blow dust cover 5.
[0024] When the product is blow molded, after the mold is opened, the product is first held by the bottom clamping mechanism and the height limiting clamping mechanism. Then, when the product is demolded upwards, the dust cover 5 body of the injection stretch blow molding is positioned by the height limiting clamping mechanism, thus solving the problem of being stretched and deformed.
[0025] Similar to existing technologies, the outer side of the injection stretch blow dust cover 5 has an annular groove 50 to make the injection stretch blow dust cover 5 have a corrugated structure. For this purpose, preferably, the first main gripper 1 and the second main gripper 2 both have a first protrusion 6 that matches the annular groove 50 at the bottom of the injection stretch blow dust cover 5, which further increases the clamping effect on the injection stretch blow dust cover 5.
[0026] Similar to existing technologies, the outer side of the injection stretch blow dust cover 5 has an annular groove 50 to make the injection stretch blow dust cover 5 have a corrugated structure. For this purpose, preferably, the first height limiting claw 3 and the second height limiting claw 4 both have a second protrusion 7 that matches the annular groove 50 on the top of the injection stretch blow dust cover 5, which further increases the clamping effect on the injection stretch blow dust cover 5.
[0027] like Figure 1 and Figure 3 As shown, the top of the injection-pull blow dust cover 5 is conical, and the inner diameter of the top annular groove 50 is smaller than the inner diameter of the bottom annular groove 50. Preferably, the outer diameter of the second protrusion 7 is smaller than the outer diameter of the first protrusion 6, which further increases the effect of preventing deformation of the injection-pull blow dust cover 5.
[0028] Preferably, the first height limiting auxiliary claw 3 is detachably mounted on the first main gripper 1 by screws; the second height limiting auxiliary claw 4 is detachably mounted on the second main gripper 2 by screws. No additional drive mechanism is needed except for the drive mechanism that drives the bottom clamping mechanism. When the bottom clamping mechanism clamps the injection blow-pull dust cover, the height limiting clamping mechanism also clamps the injection blow-pull dust cover.
[0029] Preferably, the first height limiting claw 3 is detachably mounted with a first elastic insert 8 on the side opposite to the injection blow dust cover 5 by screws, and the first elastic insert 8 is in contact with the injection blow dust cover;
[0030] The second height limiting claw 4, on the side opposite to the injection blow molding dust cover 5, is detachably fitted with a second elastic insert 9 via screws. The second elastic insert 9 contacts the injection blow molding dust cover. Both the first insert 8 and the second insert 9 are provided with a second protrusion 7.
[0031] The first and second height limiting auxiliary claws are made of aluminum alloy. In order to further reduce the scratches on the injection blower dust cover, a first elastic insert 8 and a second elastic insert 9 are provided. The first elastic insert 8 and the second elastic insert 9 can be made of nylon.
[0032] Preferably, a first gap 10 is formed between the first main gripper 1 and the second main gripper 2, and a second gap 11 is formed between the first height limiting auxiliary gripper 3 and the second height limiting auxiliary gripper 4.
[0033] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0036] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A gripper jig for an injection stretch blow dust cover mold for clamping an injection stretch blow dust cover (5), comprising a bottom clamping mechanism for clamping the outside of the bottom of the injection stretch blow dust cover (5), characterized in that, The bottom clamping mechanism comprises a first main gripper (1) and a second main gripper (2) arranged oppositely for clamping the outer side of the bottom of the injection stretch blow dust cover (5); It also comprises a height limiting clamping mechanism for clamping the outer side of the top of the injection stretch blow dust cover (5), the height limiting clamping mechanism comprises a first height limiting auxiliary gripper (3) and a second height limiting auxiliary gripper (4) arranged oppositely and used for clamping the outer side of the top of the injection stretch blow dust cover (5).
2. The gripper clamp for injection stretch blow dust cover mold according to claim 1, characterized by, The outer side of the injection stretch blow dust cover (5) is provided with a ring groove (50) to make the injection stretch blow dust cover (5) have a corrugated structure, and the first main gripper (1) and the second main gripper (2) are each provided with a first protrusion (6) matched with the ring groove (50) of the bottom of the injection stretch blow dust cover (5).
3. The gripper clamp for injection stretch blow dust cover mold according to claim 2, characterized by, The first height limiting auxiliary gripper (3) and the second height limiting auxiliary gripper (4) are each provided with a second protrusion (7) matched with the ring groove (50) of the top of the injection stretch blow dust cover (5).
4. The gripper clamp for injection stretch blow dust cover mold according to claim 3, characterized by, The outer diameter of the second protrusion (7) is smaller than the outer diameter of the first protrusion (6).
5. The injection stretch blow dust cover mold with gripper clamp according to claim 1, characterized in that, The first height limiting auxiliary gripper (3) is detachably installed on the first main gripper (1); and / or The second height limiting auxiliary gripper (4) is detachably installed on the second main gripper (2).
6. The gripper clamp for injection stretch blow dust cover mold according to claim 1, characterized by, The first height limiting auxiliary gripper (3) is detachably installed on the first main gripper (1); and / or The second height limiting auxiliary gripper (4) is detachably installed on the second main gripper (2).
7. The injection stretch blow dust cover mold with gripper clamp according to claim 1, characterized in that, The first height limiting auxiliary gripper (3) is detachably installed on the first main gripper (1); and / or The first height limiting auxiliary gripper (3) is detachably installed on the first main gripper (1); and / or The first main gripper (1) and the second main gripper (2) form a first interval (10), and the first height limiting auxiliary gripper (3) and the second height limiting auxiliary gripper (4) form a second interval (11).