Jacking structure
By designing a lifting structure including shrapnel connection and ball-head plunger positioning groove, the problem of position offset of traditional thimble rod after repeated use is solved, achieving the effect of accurate reset and high usage accuracy.
Patent Information
- Application Number
- CN202421532199.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-01
AI Technical Summary
After repeated ejection and reset operations, the axial position of the traditional thimble rod is offset, affecting the forming quality.
A lifting structure is designed, including a lower mold, an outer cylinder, a linear guide rail, a linear slider, a drive block, a power plate and a linear reciprocating mechanism. Through the connection between the power plate and the driving block, the force is slowly transmitted in a short time, reducing wear, and through the cooperation of the ball plunger and the positioning groove, the reset accuracy of the thimble rod is ensured.
It achieves the accuracy of resetting and high usage accuracy of the hoisting structure, reduces wear and ensures the stability of molding quality.
Smart Images
Figure CN222807541U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of machinery, and more specifically, to a jacking structure. Background Art
[0002] The ejector mechanism configured on the injection mold includes an ejector plate and an ejector rod. The ejector rod is usually driven by the ejector plate and can be inserted into the mold cavity to demold the finished product. After repeated ejection and reset actions, the axial position of the traditional ejector rod is offset, thereby affecting the molding quality of the next product and the overall effect is not good. Based on this, the utility model proposes a lifting structure. Utility Model Content
[0003] The utility model aims to overcome the deficiencies in the prior art and provide a lifting structure which has the characteristics of accurate resetting and high use precision.
[0004] In order to solve the above technical problems, the purpose of the utility model is achieved as follows: the utility model involves a lifting structure, including a lower mold, the bottom of the lower mold is provided with an outer cylinder in a regular polygonal shape, each inner side of the outer cylinder is respectively provided with at least one linear guide rail extending up and down, a linear slider is slidably connected to the linear guide rail, a driving block for following is provided on the linear slider, and a driving block is provided with an ejector rod extending upward and extending into the lower mold, a power plate connected to all the driving blocks is provided in the outer cylinder, and a linear reciprocating motion mechanism for controlling the up and down movement is provided on the power plate;
[0005] The power plate is in the shape of a regular polygon, the number of sides of the power plate is equal to the number of sides of the outer tube, the power plate is provided with grooves equal to the number of sides of its outer contour, the grooves extend radially, the outer ends of the grooves are connected to the outside world, the interval angles between two adjacent grooves are equal, a spring sheet is formed between two adjacent grooves on the power plate, and each spring sheet is connected to a corresponding driving block.
[0006] The utility model is further configured as follows: each side surface of the outer cylinder is threadedly connected with a ball plunger, and the outer side surface of each driving block is provided with a positioning groove for the ball head of the ball plunger to be embedded.
[0007] The utility model is further configured as follows: each inner side surface of the outer cylinder is respectively provided with two linear guide rails extending up and down, and the two linear guide rails are symmetrically arranged on both sides of the ball plunger.
[0008] The utility model is further configured as follows: the inner end of the groove is connected with a stress relief hole opened on the power plate.
[0009] The utility model is further configured as follows: the linear reciprocating motion mechanism is a push rod cylinder or a hydraulic oil cylinder.
[0010] The utility model is further configured as follows: the linear reciprocating motion mechanism is fixed on the lower die.
[0011] In summary, the utility model has the following beneficial effects: the lifting structure involved in the utility model has a spring sheet integrated with the power plate in series between the power plate and the driving block, so that the large force generated by the linear reciprocating motion mechanism in a short time is slowly transmitted to the driving block, and the friction is small until the driving block breaks free from the ball head plunger, thereby reducing wear and ensuring positioning accuracy; and through the setting of the ball head plunger in conjunction with the positioning groove, the reset accuracy of the ejector rod can be guaranteed, and the overall function is complete and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0013] Figure 2 It is a structural schematic diagram of the utility model for reflecting the power plate. DETAILED DESCRIPTION
[0014] In order to enable those skilled in the art to better understand the technical solution of the utility model, the preferred implementation scheme of the utility model is described below in conjunction with specific embodiments, but it should be understood that these descriptions are only for further illustrating the features and advantages of the utility model, rather than limiting the patent requirements of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.
[0015] The utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.
[0016] Example 1
[0017] See also Figure 1 and Figure 2 As shown, a lifting structure involved in this embodiment includes a lower mold 1, the bottom of the lower mold 1 is provided with an outer cylinder 2 in a regular polygonal shape, each inner side surface of the outer cylinder 2 is respectively provided with at least one linear guide rail 3 extending up and down, a linear slider 4 is slidably connected to the linear guide rail 3, a driving block 5 for following is provided on the linear slider 4, and a pin rod 6 extending upward and extending into the lower mold is provided on the driving block 5, a power plate 7 connected to all the driving blocks is provided in the outer cylinder 2, and a linear reciprocating motion mechanism 8 for controlling the up and down movement is provided on the power plate 7, and the linear reciprocating motion mechanism 8 is a push rod cylinder or a hydraulic oil cylinder, and the linear reciprocating motion mechanism 8 is fixed on the lower mold 1;
[0018] The power plate 7 is in the shape of a regular polygon, the number of sides of the power plate 7 is equal to the number of sides of the outer tube 2, and the power plate 7 is provided with grooves 9 equal to the number of sides of its outer contour. The grooves 9 extend radially, and the outer ends of the grooves 9 are connected to the outside world. The interval angles between two adjacent grooves 9 are equal, and a spring sheet 10 is formed on the power plate 7 between two adjacent grooves 9, and each spring sheet 10 is connected to a corresponding driving block 5.
[0019] Furthermore, each side surface of the outer tube 2 is threadedly connected with a ball plunger 11, and the outer side surface of each driving block 5 is provided with a positioning groove 12 for the ball head of the ball plunger to be embedded.
[0020] Furthermore, each inner side surface of the outer cylinder 2 is provided with two linear guide rails 3 extending up and down, and the two linear guide rails 3 are arranged on both sides of the ball plunger 11 in a left-right symmetrical manner.
[0021] In this embodiment, the linear reciprocating motion mechanism 8 first drives the power plate 7 to move, and the power plate 7 will deform the spring sheet 10 in a short time until the deformation force reaches an upper limit, which will drive the drive block 5 to move on the linear slider 4 until the drive block 5 breaks free from the limit of the ball plunger 11; conversely, also under the control of the linear reciprocating motion mechanism 8, the drive block 5 is reset until the ball head on the ball plunger 11 is embedded in the corresponding positioning groove 12, thereby ensuring the reset accuracy.
[0022] Wherein, the power plate 7 is a stainless steel plate.
[0023] The outer contours of the outer cylinder 2 and the power plate 7 are both in the shape of a regular octagon.
[0024] Example 2
[0025] See also Figure 1 and Figure 2 As shown, the jacking structure involved in this embodiment is further configured on the basis of Embodiment 1, wherein the inner end of the cut groove 9 is connected to a stress relief hole 13 opened on the power plate 7 .
[0026] In this embodiment, by opening the stress relief hole 13, the force on the end of the groove 9 is dispersed, so as to prevent the connection between the spring piece 10 and the power plate 7 which is repeatedly deformed from being broken, thereby indirectly extending the service life.
[0027] The lifting structure involved in the utility model has a spring sheet which is integrated with the power plate in series between the power plate and the driving block, so that the large force generated by the linear reciprocating motion mechanism in a short time is slowly transmitted to the driving block, and the friction is small until the driving block breaks free from the ball head plunger, thereby reducing wear and ensuring positioning accuracy; and the reset accuracy of the ejector rod can be ensured by setting the ball head plunger in conjunction with the positioning groove, and the overall function is perfect and the practicability is strong.
[0028] Unless otherwise specified, in the present invention, the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationship are based on the orientation or positional relationship actually shown, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in combination with the embodiments and according to specific circumstances.
[0029] Unless otherwise clearly specified and limited, in the present invention, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0030] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.
Claims
1. A lifting structure, comprising a lower mold, characterized in that: The bottom of the lower mold is provided with an outer cylinder in a regular polygonal shape, each inner side surface of the outer cylinder is respectively provided with at least one linear guide rail extending up and down, a linear slider is slidably connected to the linear guide rail, a driving block for following is provided on the linear slider, and a pin rod extending upward and extending into the lower mold is provided on the driving block, and a power plate connected to all the driving blocks is provided in the outer cylinder, and a linear reciprocating motion mechanism for controlling the up and down movement is provided on the power plate; The power plate is in the shape of a regular polygon, the number of sides of the power plate is equal to the number of sides of the outer tube, the power plate is provided with grooves equal to the number of sides of its outer contour, the grooves extend radially, the outer ends of the grooves are connected to the outside world, the interval angles between two adjacent grooves are equal, a spring sheet is formed between two adjacent grooves on the power plate, and each spring sheet is connected to a corresponding driving block.
2. The jacking structure according to claim 1, characterized in that: Each side surface of the outer cylinder is threadedly connected with a ball plunger, and the outer side surface of each driving block is provided with a positioning groove for the ball head of the ball plunger to be embedded.
3. The jacking structure according to claim 2, characterized in that: Two linear guide rails extending up and down are respectively arranged on each inner side surface of the outer cylinder, and the two linear guide rails are symmetrically arranged on both sides of the ball plunger.
4. The jacking structure according to any one of claims 1 to 3, characterized in that: The inner end of the cut groove is connected with a stress relief hole opened on the power plate.
5. The jacking structure according to claim 1, characterized in that: The linear reciprocating motion mechanism is a push rod cylinder or a hydraulic cylinder.
6. The jacking structure according to claim 1 or 5, characterized in that: The linear reciprocating motion mechanism is fixed on the lower die.