Plate spring type workpiece separating unit
By adopting a leaf spring structure in the workpiece separation unit to maintain the direction of the separation needle, the wear problem caused by the separation needle swing under the drive of the electromagnet is solved, and the effect of reducing maintenance frequency and cost is achieved.
Patent Information
- Application Number
- CN202421068733.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-05-16
AI Technical Summary
Under the drive of the electromagnet, the separation needle swings in the X-direction and Y-direction movement of the existing workpiece separation unit, resulting in rapid wear of the copper sleeve and the separation needle, which in turn causes workpiece separation errors, reduced separation speed and increased maintenance frequency and cost.
A leaf spring-type workpiece separation unit is adopted. By setting a fixed shaft on the armature of the solenoid, and an upper leaf spring and a lower leaf spring are provided on both sides of the fixed shaft. An upper support point and a lower support point are provided on the fixed shaft. The upper leaf spring and the lower leaf spring maintain the direction of the separation needle to reduce displacement friction.
It effectively reduces the friction between the separation needle and the upper and lower leaf springs, avoids component wear, reduces maintenance frequency and cost, and simplifies the replacement process of the separation needle.
Smart Images
Figure CN222611471U_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of tape packaging equipment for small electronic components, and in particular to a workpiece separation unit of a tape machine. Background Art
[0002] In the wafer component taping machine, the workpiece separation unit is an important component for lifting and separating the workpiece.
[0003] Existing workpiece separation units, such as Figure 1 As shown, it includes a frame 1, an electromagnet 2, a separation needle 3 and a reset spring 4. The electromagnet 2 is arranged on the frame 1. The armature 21 of the electromagnet 2 extends a driving end upward and is fixedly connected to the bottom end of the separation needle 3 through a connector 5. That is, when the electromagnet 2 is in a de-energized and separated state, the armature 21 moves upward due to the action of the reset spring 4 at the bottom, that is, the separation needle 3 is pushed upward, and when the electromagnet 2 is energized and the armature 21 is attracted, the separation needle 3 falls, thereby realizing the up and down driving of the separation needle 3 by the electromagnet 2.
[0004] When the up and down direction is the Z direction, the horizontal plane direction is the XY plane. Figure 1 As shown, in the above-mentioned existing workpiece separation unit, when the armature 21 moves up and down along the Z direction, the copper sleeve 6 at the bottom of the electromagnet 2 limits the armature 21 in the X direction, and a Y-direction limit lock 7 on the upper part of the separation needle 3 limits the Y-direction movement of the separation needle 3. During the movement, the separation needle 3 still swings in the X and Y directions, causing rapid wear and degradation of the copper sleeve 6 and the separation needle 3, which in turn leads to separation errors or degradation of the separation speed of the workpiece, and the frequent replacement of related parts, which increases the maintenance frequency and cost. In addition, when replacing the separation needle 3, the entire electromagnet 2 needs to be removed before the separation needle 3 can be removed, which is very troublesome to replace. Summary of the invention
[0005] The utility model aims to provide a leaf spring type workpiece separation unit, which improves the guiding performance of a separation needle, reduces the wear of components, and reduces the maintenance frequency and cost.
[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a leaf spring type workpiece separation unit, including a frame, an electromagnet and a separation needle, the electromagnet is arranged on the frame; a fixed shaft is fixedly arranged on the armature of the electromagnet in the up and down directions, the upper part of the fixed shaft extends out of the electromagnet and an upper support point is arranged on it, the lower part of the fixed shaft extends out of the electromagnet and a lower support point is arranged on it, and an upper leaf spring and a lower leaf spring parallel to each other are arranged on one side of the fixed shaft, one end of the upper leaf spring is fixedly connected to the upper support point, and the other end thereof is fixedly connected to the frame, one end of the lower leaf spring is fixedly connected to the lower support point, and the other end thereof is fixedly connected to the frame; the separation needle extends upward from the upper end of the fixed shaft.
[0007] In the above scheme, the fixed shaft is provided with an axial center hole, the separation needle is inserted into the axial center hole of the fixed shaft from bottom to top, and a locking structure is provided on the lower end of the separation needle to be fixed to the fixed shaft.
[0008] Furthermore, the opening hole or groove sleeve on the upper leaf spring is placed on the upper supporting point of the fixed shaft, and clamping blocks are provided above and below the upper supporting point to clamp and fix the upper leaf spring at the upper supporting point of the fixed shaft; the opening hole or groove sleeve on the lower leaf spring is placed on the lower supporting point of the fixed shaft, and clamping blocks are provided above and below the lower supporting point to clamp and fix the lower leaf spring at the lower supporting point of the fixed shaft.
[0009] Furthermore, a nut head is provided on the lower end of the separation needle, and a threaded hole matching the nut head of the separation needle is provided on the clamping block located under the lower supporting point for fixing.
[0010] In the above scheme, the opening hole or groove sleeve on the upper leaf spring is placed on the upper support point of the fixed shaft, and clamping blocks are respectively provided above and below the upper support point to clamp and fix the upper leaf spring at the upper support point of the fixed shaft; the opening hole or groove sleeve on the lower leaf spring is placed on the lower support point of the fixed shaft, and clamping blocks are respectively provided above and below the lower support point to clamp and fix the lower leaf spring at the lower support point (B) of the fixed shaft.
[0011] The utility model maintains the direction of the separation needle by the upper leaf spring, the lower leaf spring and the fixed shaft. When the separation needle moves up and down (small amplitude movement) driven by the electromagnet, the separation needle is in a fixed relationship with the ends of the upper leaf spring and the lower leaf spring, and there is no displacement friction therebetween, so there is no wear of components, there is no need to frequently replace parts, and the maintenance frequency and cost are reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic cross-sectional view of the structure of the prior art;
[0013] Figure 2 It is a schematic cross-sectional view of the structure of an embodiment of the utility model;
[0014] Figure 3 It is a structural stereoscopic schematic diagram of an embodiment of the utility model;
[0015] Figure 4 It is a three-dimensional schematic diagram of the corresponding connection structure of the electromagnet, the upper leaf spring and the lower leaf spring according to an embodiment of the utility model.
[0016] In the above drawings: 1, frame; 2, electromagnet; 3, separation needle; 4, reset spring; 5, connector; 6, copper sleeve; 7, Y-axis limit lock; 8, fixed shaft; 9, upper leaf spring; 10, lower leaf spring; 11, nut head; 12, threaded hole; 13, first L-shaped body; 14, second L-shaped body; 15, operating hole; A, upper support point; B, lower support point. DETAILED DESCRIPTION
[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0018] Example: See Figures 2~4 As shown, a leaf spring type workpiece separation unit:
[0019] See also Figures 2~4 As shown, the leaf spring type workpiece separation unit comprises a frame 1 , an electromagnet 2 and a separation needle 3 , wherein the electromagnet 2 is arranged on the frame 1 .
[0020] See also Figures 2~4 As shown, a fixed shaft 8 is fixedly arranged on the armature of the electromagnet 2 in the up-down direction, the upper part of the fixed shaft 8 extends upward from the electromagnet 2 and an upper support point A is arranged on it, the lower part of the fixed shaft 8 extends downward from the electromagnet 2 and a lower support point B is arranged on it, and an upper leaf spring 9 and a lower leaf spring 10 parallel to each other are arranged on one side of the fixed shaft 8, one end of the upper leaf spring 9 is fixedly connected to the upper support point A, and the other end thereof is fixedly connected to the frame 1, and one end of the lower leaf spring 10 is fixedly connected to the lower support point B, and the other end thereof is fixedly connected to the frame 1.
[0021] See also Figure 4 As shown, the specific frame 1 includes a first L-shaped body 13, on which the electromagnet 2 is seated on the transverse extension of the first L-shaped body, and the electromagnet 2 housing with the coil part is fixed to the transverse extension of the first L-shaped body by two screws. The end of the upper leaf spring 9 is fixed to the top of the vertical part of the first L-shaped body, and the end of the lower leaf spring 10 is fixed to the bottom of the vertical part of the first L-shaped body.
[0022] See also Figure 2 As shown, the fixed shaft 8 is provided with an axial hole, and the separation needle 3 is inserted into the axial hole of the fixed shaft 8 from bottom to top. The lower end of the separation needle 3 is provided with a locking structure to be fixed to the fixed shaft 8, and the upper end of the separation needle 3 extends upward from the upper end of the fixed shaft 8 as a separation action end.
[0023] See also Figures 2~4 As shown, specifically, the opening or groove sleeve on the upper leaf spring 9 is placed on the upper support point A of the fixed shaft 8, and clamping blocks are respectively provided above and below the upper support point A to clamp and fix the upper leaf spring 9 at the upper support point A of the fixed shaft 8; the opening or groove sleeve on the lower leaf spring 10 is placed on the lower support point (B) of the fixed shaft 8, and clamping blocks are respectively provided above and below the lower support point B to clamp and fix the lower leaf spring 10 at the lower support point B of the fixed shaft 8.
[0024] For details, see Figures 2~4 As shown, a nut head 11 is provided on the lower end of the separation needle 3, and a threaded hole 12 matching with the nut head 11 of the separation needle 3 is provided on the clamping block located under the lower supporting point B, so as to fix the separation needle 3.
[0025] See also Figures 2~4 As shown, in addition to the first L-shaped body 13, the frame 1 also includes a second L-shaped body 14, which is fixedly arranged under the first L-shaped body 13, and the top end of the vertical portion of the second L-shaped body 14 is fixedly connected to the bottom end of the vertical portion of the first L-shaped body 13, and the lateral extension portion of the second L-shaped body 14 is located parallel to and below the lateral extension portion of the first L-shaped body 13.
[0026] A return spring 4 is provided between the lateral extension of the second L-shaped body 14 and the clamping block located under the lower support point B to increase the upward return force of the separation needle 3. In practice, when the holding force of the upper leaf spring 9 and the lower leaf spring 10 on the fixed shaft is sufficient, the return spring 4 may not be provided.
[0027] See also Figure 2 An operating hole 15 is formed on the transversely extending portion of the second L-shaped body 14 facing the nut head 11 . The diameter of the operating hole is larger than the diameter of the nut head 11 , so that the nut head 11 can be loosened through the operating hole 15 to remove the separation needle 3 .
[0028] In this embodiment, the direction of the separation needle 3 is maintained by the upper leaf spring 9, the lower leaf spring 10 and the fixed shaft 8. When the separation needle 3 moves up and down (small amplitude movement) driven by the electromagnet 2, the separation needle 3 is in a fixed relationship with the ends of the upper leaf spring 9 and the lower leaf spring 10, and there is no displacement friction between them, so there will be no wear of parts, and there is no need to frequently replace parts, which reduces the maintenance frequency and cost. In addition, when replacing the separation needle 3, the separation needle 3 can be directly loosened from the operating hole 15 and then pulled out downward for replacement, without disassembling other parts, and the replacement efficiency is extremely high.
[0029] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.
Claims
1. A leaf spring type workpiece separation unit, comprising a frame (1), an electromagnet (2) and a separation needle (3), wherein the electromagnet (2) is arranged on the frame (1); characterized in that: A fixed shaft (8) is fixedly arranged on the armature of the electromagnet (2) in the up-down direction, the upper part of the fixed shaft (8) extends upward from the electromagnet (2) and an upper support point (A) is arranged on it, the lower part of the fixed shaft (8) extends downward from the electromagnet (2) and a lower support point (B) is arranged on it, and an upper leaf spring (9) and a lower leaf spring (10) parallel to each other are arranged on one side of the fixed shaft (8), one end of the upper leaf spring (9) is fixedly connected to the upper support point (A), and the other end of the upper leaf spring (9) is fixedly connected to the frame (1), and one end of the lower leaf spring (10) is fixedly connected to the lower support point (B), and the other end of the lower leaf spring (10) is fixedly connected to the frame (1); the separation needle (3) extends upward from the upper end of the fixed shaft (8).
2. The leaf spring type workpiece separation unit according to claim 1, characterized in that: The fixed shaft (8) is provided with an axial center hole, and the separation needle (3) is inserted into the axial center hole of the fixed shaft (8) from bottom to top. The lower end of the separation needle (3) is provided with a locking structure for fixing to the fixed shaft (8).
3. The leaf spring type workpiece separation unit according to claim 2, characterized in that: The opening or groove sleeve on the upper leaf spring (9) is placed on the upper support point (A) of the fixed shaft (8), and clamping blocks are respectively provided above and below the upper support point (A) to clamp and fix the upper leaf spring (9) at the upper support point (A) of the fixed shaft (8); the opening or groove sleeve on the lower leaf spring (10) is placed on the lower support point (B) of the fixed shaft (8), and clamping blocks are respectively provided above and below the lower support point (B) to clamp and fix the lower leaf spring (10) at the lower support point (B) of the fixed shaft (8).
4. The leaf spring type workpiece separation unit according to claim 3, characterized in that: A nut head is provided on the lower end of the separation needle (3), and a threaded hole matching the nut head of the separation needle (3) is provided on the clamping block located below the lower support point (B) for fixing.
5. The leaf spring type workpiece separation unit according to claim 1, characterized in that: The opening or groove sleeve on the upper leaf spring (9) is placed on the upper support point (A) of the fixed shaft (8), and clamping blocks are respectively provided above and below the upper support point (A) to clamp and fix the upper leaf spring (9) at the upper support point (A) of the fixed shaft (8); the opening or groove sleeve on the lower leaf spring (10) is placed on the lower support point (B) of the fixed shaft (8), and clamping blocks are respectively provided above and below the lower support point (B) to clamp and fix the lower leaf spring (10) at the lower support point (B) of the fixed shaft (8).