Novel plastic part hot riveting device
By using a uniformly heated riveting head and a rotating disk structure in the hot riveting device, the riveting quality problem caused by uneven riveting was solved, achieving uniform melting and efficient production.
Patent Information
- Application Number
- CN202423175430.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing hot riveting fixtures have problems such as uneven heat conduction when riveting plastic and metal parts, which leads to incomplete riveting and easy wire pulling on the edge of the riveting post.
A novel hot riveting device for plastic parts was designed. It uses a uniformly heated protruding hot riveting head to ensure that the center and edge of the riveting post melt simultaneously, and achieves synchronous operation of feeding, hot riveting and unloading through the cooperation of a rotating disk and a sliding frame.
This method achieves uniform melting of the riveting, avoids wire pulling on the riveting post, and improves production efficiency and hot riveting quality.
Smart Images
Figure CN223559106U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to riveting frock technical field, especially a novel plastic piece hot riveting device. BACKGROUND
[0002] In the production and assembly of lock body, the assembly connection of plastic piece and metal piece will be involved, for example Figure 1 The plastic piece (1a) and metal piece (2a) shown in the figure generally realize the assembly connection of the two by the hot riveting mode, and the specific principle is that the riveting column (1a1) provided on the plastic piece (1a) is inserted through the riveting hole (2a1) provided on the metal piece (2a), the part of the riveting column (1a1) inserted through the riveting hole (2a1) is fused and extruded by the hot riveting head of the riveting device to be pressed against the port of the riveting hole (2a1), and the assembly connection of the plastic piece (1a) and the metal piece (2a) is realized, when the existing hot riveting frock is used for hot riveting of the plastic piece and the metal piece, the heat conduction is uneven when the flat-end hot riveting head contacts the riveting column, the edge of the riveting column is fused first, and the middle part is fused later, so that the riveting is not in place, and the edge of the riveting column is prone to wire drawing.
[0003] In view of the above problems, the utility model is improved. CONTENT OF THE UTILITY MODEL
[0004] The utility model provides a novel plastic piece hot riveting device, and solves the above problems existing in the use process of the prior art.
[0005] The technical scheme of the utility model is as follows:
[0006] A novel plastic piece hot riveting device, comprising a frame body, a rotating disc in transmission connection with a motor arranged on the frame body is rotatably arranged on the frame body, three material placing seats in annular array along the center of the rotating disc are fixedly arranged on the rotating disc, a supporting frame is arranged on one side of the rotating disc on the frame body, a sliding frame in longitudinal sliding and in transmission connection with a hot riveting cylinder arranged on the supporting frame is arranged on the supporting frame, a heating seat is fixedly arranged on the lower end of the sliding frame, a plurality of hot riveting heads are arranged on the heating seat, a uniform heating convex in the shape of a circular truncated cone with the small end downward is formed on the end face of the hot riveting head, and the material placing seat can be aligned with the heating seat by rotating the rotating disc.
[0007] Preferably, the supporting frame is in the shape of L, a vertical linear sliding rail is arranged on the vertical part of the supporting frame, the sliding frame is fixedly connected to the sliding seat of the linear sliding rail, and the hot riveting cylinder is arranged on the horizontal part of the sliding frame and fixedly connected to the sliding frame through the output shaft of the hot riveting cylinder penetrating through the horizontal part of the sliding frame.
[0008] Preferably, the hot riveting head is in the shape of an inverted T-shaped cylinder, a mounting hole is formed in the heating seat, and the small end of the hot riveting head is inserted into the mounting hole and in interference fit with the mounting hole.
[0009] Preferably, a cylindrical insertion part is formed on the small head end of the heat-uniformizing protrusion.
[0010] Preferably, the cross section of the sliding frame is in the shape of a Chinese character, a pre-pressing rod is arranged in the heating seat, a pre-pressing plate is fixedly connected to the lower end of the pre-pressing rod and protrudes out of the heating seat, a limiting ring is formed on the upper end of the pre-pressing rod and protrudes out of the lower end horizontal part of the sliding frame, and a pre-pressing spring is arranged in the sliding frame and sleeved on the upper end of the pre-pressing rod between the limiting ring and the upper end horizontal part of the sliding frame.
[0011] Preferably, the mounting plate is fixedly connected to the rotating disc, the blanking notch is arranged in the material placing seat and extends through the material placing seat, the first blanking hole is arranged in the mounting plate and communicates with the blanking notch, the second blanking hole is arranged in the rotating disc and aligns with the first blanking hole, the third blanking hole is arranged in the frame body and aligns with the second blanking hole, and the blanking cylinder is arranged on the frame body and has the output shaft upward.
[0012] Preferably, the blanking guide plate is fixedly arranged on one side of the blanking cylinder.
[0013] In summary, the heat-uniformizing protrusion can make the heat conduction of the hot riveting head more uniform when the hot riveting head is used to press and melt the riveting column, so that the middle part and the edge of the riveting column are melted at the same time, the hot riveting is in place, the riveting column is not easy to be drawn, and the quality of the hot riveting is ensured. The three material placing seats correspond to the feeding station, the riveting station and the blanking station respectively, so that the feeding operation, the hot riveting operation and the blanking operation can be simultaneously performed, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.
[0015] Figure 1 The structure schematic view of the plastic part and the metal part for hot riveting of the present application;
[0016] Figure 2 The structure schematic view of the present application;
[0017] Figure 3 The structure schematic view of another perspective of the present application;
[0018] Figure 4This is a partial structural schematic diagram of the present invention;
[0019] Figure 5 This is a schematic diagram of the structure of the centrally located material holder, rotating disk, and feeding cylinder of this utility model;
[0020] Figure 6 This is a schematic diagram of the structure of the hot riveting head in this utility model.
[0021] In the diagram: 1a, plastic part; 1a1, riveting post; 2a, metal part; 2a1, riveting hole;
[0022] 1. Frame; 101. Third feeding hole; 2. Rotating disc; 21. Second feeding hole; 3. Material placement seat; 31. Feeding notch; 4. Support frame; 5. Sliding frame; 6. Heating seat; 61. Mounting hole; 7. Hot riveting head; 71. Uniform heating protrusion; 72. Insertion part; 8. Linear slide rail; 9. Preload rod; 91. Preload plate; 92. Limiting ring; 10. Preload spring; 11. Mounting plate; 111. First feeding hole; 12. Feeding cylinder; 13. Feeding guide plate; 14. Motor; 15. Hot riveting cylinder. Detailed Implementation
[0023] The following will refer to the appendix in the embodiments of this utility model. Figures 1-6 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0024] As shown in the figure, a novel hot riveting device for plastic parts 1a includes a frame 1. A rotating disk 2, which is rotatably mounted on the frame 1 and driven by a motor 14 mounted on the frame 1, is mounted on the frame 1. The rotating shaft of the rotating disk 2 passes through the frame 1 and is connected to the motor 14 via a reducer. Three material placement seats 3 are fixedly mounted on the rotating disk 2 in a circular array along the center of the rotating disk 2. A support frame 4 is mounted on the frame 1 on one side of the rotating disk 2. A sliding frame 5, which can slide longitudinally and is driven by a hot riveting cylinder 15 mounted on the support frame 4, is mounted on the lower end of the sliding frame 5. A heating seat 6 is fixedly mounted on the lower end of the sliding frame 5. A plurality of hot riveting heads 7 are mounted on the heating seat 6. A frustum-shaped uniform heating protrusion 71 with the small end facing downward is formed on the end face of the hot riveting head 7. The material placement seats 3 can be aligned with the heating seat 6 as the rotating disk 2 rotates.
[0025] Specifically, the structure that the sliding frame 5 is slidingly arranged on the support frame 4 and is drivingly connected with the hot riveting cylinder 15: the support frame 4 is L-shaped, a vertical portion of the support frame 4 is provided with a vertical linear slide rail 8, the sliding frame 5 is fixedly connected to a sliding seat of the linear slide rail 8, and the hot riveting cylinder 15 is arranged on a horizontal portion of the sliding frame 5 and is fixedly connected with the sliding frame 5 through the horizontal portion, the accuracy of the longitudinal sliding of the sliding frame 5 is ensured through the action of the linear slide rail 8, thereby ensuring the accuracy of the longitudinal sliding of the heating seat 6 and the hot riveting head 7, and the hot riveting head 7 and the uniform heating protrusion 71 can accurately contact the riveting column 1a1.
[0026] Specifically, the structure that the hot riveting head 7 is arranged in the heating seat 6: the hot riveting head 7 is inverted T-shaped cylindrical, the heating seat 6 is provided with a mounting hole 61, and the small end of the hot riveting head 7 is inserted into the mounting hole 61 and is in interference fit with the mounting hole 61, through the mounting mode of the hot riveting head 7, the hot riveting head 7 can be disassembled for replacement and cleaning after long-time use, and the hot riveting head 7 is in close contact with the heating seat 6, thereby ensuring that the heating seat 6 can more efficiently and quickly transfer heat to the hot riveting head 7.
[0027] In the above structure, the material placing seat 3 is formed with a limiting protrusion and a limiting groove matched with the plastic part 1a and the metal part 2a, the plastic part 1a is limited and fixed through the limiting protrusion and the limiting groove after the plastic part 1a and the metal part 2a are placed on the material placing seat 3, the limiting protrusion and the limiting groove are arranged according to the shape of the plastic part 1a and the metal part 2a, and the shape is not specifically described here, when the riveting operation of the plastic part 1a and the metal part 2a is performed, the position of the heating seat 6 is a riveting station, and the positions of the other two material placing seats 3 not aligned with the heating seat 6 are respectively an upper feeding station and a lower feeding station, the plastic part 1a and the metal part 2a are placed on the material placing seat 3 at the upper feeding station, the motor 14 drives the rotating disc 2 to rotate and drives the material placing seat 3 on which the plastic part 1a and the metal part 2a are placed to rotate to below the heating seat 6, so that the riveting column 1a1 on the plastic part 1a is aligned with the hot riveting head 7 on the heating seat 6, then the hot riveting cylinder 15 drives the sliding frame 5 to drive the heating seat 6 and the hot riveting head 7 heated by the electric heating wire arranged in the heating seat 6 to move toward the riveting column 1a1, so that the uniform heating protrusion 71 first contacts the riveting column 1a1 to first melt the middle part of the riveting column 1a1, then the end surface of the hot riveting head 7 contacts the riveting column 1a1 to melt the edge of the riveting column 1a1 at the same time as the middle part, thereby ensuring that the hot riveting is in place and the riveting column 1a1 is not prone to wire drawing, thereby ensuring the quality of the hot riveting, and while the hot riveting operation of the plastic part 1a and the metal part 2a is performed, the upper feeding and the lower feeding operations can be performed at the upper feeding station and the lower feeding station, thereby improving the production efficiency.
[0028] In addition, the small end of the uniform heating protrusion 71 is formed with a cylindrical insertion part 72, which first contacts the riveting column 1a1 and melts the riveting column 1a1 when the hot riveting head 7 moves towards the riveting column 1a1, and the insertion part 72 inserts the riveting column 1a1 into it, and the heat is transmitted to the inside of the riveting column 1a1 through the insertion part 72, so that the hot riveting head 7 extrudes the riveting column 1a1, and the heat conduction to the riveting column 1a1 is more uniform, which ensures the quality of hot riveting.
[0029] In addition, the cross section of the sliding frame 5 is in the shape of a mouth, the heating seat 6 is provided with a pre-pressing rod 9, the lower end of the pre-pressing rod 9 penetrates out of the heating seat 6 and is fixedly connected with a pre-pressing plate 91, the upper end penetrates out of the lower end horizontal part of the sliding frame 5 and forms a limiting ring 92, the sliding frame 5 is provided with a pre-pressing spring 10 which is sleeved on the upper end of the pre-pressing rod 9 and located between the limiting ring 92 and the upper end horizontal part of the sliding frame 5, under the action of the hydraulic spring, the pre-pressing rod 9 has a downward sliding trend, and the limiting ring 92 abuts against the lower end horizontal part of the sliding frame 5, when the sliding frame 5 drives the heating seat 6 and the hot riveting head 7 to move towards the riveting column 1a1, the pre-pressing plate 91 first contacts the plastic part 1a and the metal part 2a placed on the material placing seat 3 and presses the plastic part 1a and the metal part 2a, so that the plastic part 1a and the metal part 2a are more stably kept on the material placing seat 3, and the accuracy of the position of the hot riveting head 7 when it contacts the riveting column 1a1 is ensured, thereby ensuring the quality of hot riveting, and when the sliding frame 5 drives the heating seat 6 and the hot riveting head 7 away from the plastic part 1a and the metal part 2a after hot riveting is completed, the pre-pressing plate 91 still abuts against the plastic part 1a and the metal part 2a when the hot riveting head 7 moves upwards, so that the two parts are stably kept on the material placing seat 3, and the hot riveting head 7 can be quickly separated from the riveting column 1a1 to avoid the phenomenon of plastic wire drawing, thereby ensuring the quality of hot riveting.
[0030] In addition, the lower end of the material placing seat 3 is fixedly connected with a mounting plate 11, the mounting plate 11 is fixedly connected to the rotating disc 2, the material placing seat 3 is provided with a material discharging gap 31 which penetrates through the material placing seat 3, the mounting plate 11 is provided with a first material discharging hole 111 which communicates with the material discharging gap 31, the rotating disc 2 is provided with a second material discharging hole 21 which is aligned with the first material discharging hole 111, and the frame body 1 is provided with a third material discharging hole 101 which is aligned with the second material discharging hole 21, the frame body 1 is provided with a material discharging cylinder 12 which is located below the third material discharging hole 101 and has an output shaft facing upwards, when the plastic part 1a and the metal part 2a after hot riveting are rotated to the material discharging station by the rotating disc 2, the third material discharging hole 101 is aligned with the second material discharging hole 21, the first material discharging hole 111 and the material discharging gap 31 in sequence, at this time, the output shaft of the material discharging cylinder 12 penetrates through the third material discharging hole 101, the second material discharging hole 21, the first material discharging hole 111 and the material discharging gap 31 in sequence and then contacts the plastic part 1a and the metal part 2a, and pushes the two parts to separate from the material placing seat 3, thereby realizing automatic material discharging after hot riveting, and saving manpower and improving production efficiency.
[0031] In addition, the frame body 1 is fixedly provided with a blanking guide plate 13 on the side of the blanking cylinder 12. The plastic part 1a and the metal part 2a, which are completed by hot riveting and are driven by the blanking cylinder 12, fall to the blanking guide plate 13 after being separated from the material holder 3 on the side of the material holder 3, so that the plastic part 1a and the metal part 2a are slid downward along the blanking guide plate 13 and fall into the collecting box, thereby facilitating the collection of the products after the hot riveting is completed.
[0032] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A new type of plastic piece hot riveting device, comprising a frame body (1), characterized in that: The frame body (1) is provided with a rotating disc (2) which is in transmission connection with a motor (14) arranged on the frame body (1), three material placing seats (3) are fixedly arranged on the rotating disc (2) in an annular array around the center of the rotating disc (2), a supporting frame (4) is arranged on the frame body (1) and located on one side of the rotating disc (2), a sliding frame (5) which can slide longitudinally and is in transmission connection with a hot riveting cylinder (15) arranged on the supporting frame (4) is arranged on the supporting frame (4), a heating seat (6) is fixedly arranged on the lower end of the sliding frame (5), a plurality of hot riveting heads (7) are arranged on the heating seat (6), a uniform heating protrusion (71) in the shape of a circular truncated cone with the small end downward is formed on the end face of the hot riveting head (7), and the material placing seat (3) can be aligned with the heating seat (6) when the rotating disc (2) rotates.
2. The novel apparatus for hot riveting of plastic parts as claimed in claim 1 wherein: The supporting frame (4) is in the shape of L, a vertical linear slide rail (8) is arranged on the vertical part of the supporting frame (4), the sliding frame (5) is fixedly connected to the sliding seat of the linear slide rail (8), and the hot riveting cylinder (15) is arranged on the horizontal part of the sliding frame (5) and is fixedly connected to the sliding frame (5) through the horizontal part of the sliding frame (5).
3. The novel apparatus for hot riveting of plastic parts as claimed in claim 2 wherein: The hot riveting head (7) is in the shape of an inverted T-shaped cylinder, the heating seat (6) is provided with a mounting hole (61), and the small end of the hot riveting head (7) is inserted into the mounting hole (61) and is in interference fit with the mounting hole (61).
4. The novel apparatus for hot riveting of plastic parts as claimed in claim 3 wherein: A cylindrical insertion part (72) is formed on the small end of the uniform heating protrusion (71).
5. The novel apparatus for hot riveting of plastic parts as claimed in claim 1 wherein: The cross section of the sliding frame (5) is in the shape of an open Chinese character, a pre-pressing rod (9) is arranged in the heating seat (6), the lower end of the pre-pressing rod (9) penetrates out of the heating seat (6) and is fixedly connected with a pre-pressing plate (91), the upper end penetrates out of the lower horizontal part of the sliding frame (5) and forms a limiting ring (92), and the sliding frame (5) is provided with a pre-pressing spring (10) which is sleeved on the upper end of the pre-pressing rod (9) and located between the limiting ring (92) and the upper horizontal part of the sliding frame (5).
6. The novel apparatus for hot riveting of plastic parts as claimed in claim 1 wherein: The lower end of the material placing seat (3) is fixedly connected with a mounting plate (11), the mounting plate (11) is fixedly connected to the rotating disc (2), a discharging notch (31) which penetrates through the material placing seat (3) is arranged on the material placing seat (3), a first discharging hole (111) which is in communication with the discharging notch (31) is arranged on the mounting plate (11), a second discharging hole (21) which is aligned with the first discharging hole (111) is arranged on the rotating disc (2), a third discharging hole (101) which is aligned with the second discharging hole (21) is arranged on the frame body (1), and a discharging cylinder (12) which is located below the third discharging hole (101) and has an output shaft upward is arranged on the frame body (1).
7. The novel apparatus for hot riveting of plastic parts as claimed in claim 6 wherein: A discharging guide plate (13) which is located on one side of the discharging cylinder (12) is fixedly arranged on the frame body (1).