Trunk shell molding ejection device
By designing a mold ejection device for the luggage shell, the deformation restoring force of the return spring and tension spring is used to push the ejector block out of the luggage shell, which solves the problem of the shell being difficult to remove after stamping and improves stamping efficiency.
Patent Information
- Application Number
- CN202422466175.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-10-12
AI Technical Summary
In existing stamping dies, it is difficult to remove the stamped suitcase shell from the bottom forming die, which affects the stamping effect.
A luggage shell forming and ejection device was designed, including a stamping die body, a pressing mechanism and a spring-back mechanism. The device uses the deformation restoring force of the return spring and the tension spring to push the horizontal plate and the top block to eject the stamped luggage shell.
It effectively solved the problem of luggage shells being difficult to remove from the mold, improving stamping effect and efficiency.
Smart Images

Figure CN223533071U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of luggage shell stamping molds, specifically a luggage shell forming and ejection device. Background Technology
[0002] A suitcase, also known as a travel case or rolling case, is a box used to carry items when traveling; it is one type of luggage.
[0003] A stamping die is a special process equipment used in cold stamping to process materials (metal or non-metal) into parts (or semi-finished products). It is called a cold stamping die (commonly known as a cold stamping mold). Therefore, when forming the shell of a suitcase, a stamping die is often used to stamp the shell. When using existing stamping dies, the stamped suitcase shell is often placed in the bottom forming die. Due to the stamping pressure, it is difficult to remove the suitcase shell from the bottom forming die, thus affecting the stamping effect. Utility Model Content
[0004] To address the shortcomings of existing technologies, the stamped luggage shell is often placed in the bottom forming mold. Due to the stamping pressure, the luggage shell is difficult to remove from the bottom forming mold, thus affecting the stamping effect. This utility model proposes a luggage shell forming and ejection device.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a luggage shell forming and ejection device, including a stamping die body and a pressing mechanism installed on the surface of the stamping die body. The stamping die body includes a base platform, a lower die is fixedly connected to the top of the base platform, an upper die is installed on the top of the lower die, a stand is fixedly connected to the surface of the base platform, a stamping machine is fixedly connected to the top of the stand, and the output end of the stamping machine is fixedly connected to the top of the upper die.
[0006] A spring-back mechanism is installed at the bottom of the lower mold cavity. The spring-back mechanism includes a horizontal plate. A return spring is installed on both sides of the bottom of the horizontal plate. A tension spring is fixedly connected to the top of the horizontal plate. The top of the tension spring is fixedly connected to the interior of the lower mold. Vertical plates are fixedly connected to both sides of the top of the horizontal plate. A push plate is fixedly connected to the top of the vertical plate. A top block is fixedly connected to the top of the push plate. Connecting plates are fixedly connected to the front and back sides of the horizontal plate.
[0007] Preferably, the pressing mechanism includes a pressing block and an insertion cylinder. There are two pressing blocks, which are fixed to the front and back sides of the upper mold. The insertion cylinder is fixed to the top of the upright plate. The inner cavity of the insertion cylinder has a slot. The bottom of the pressing block is fixedly connected to a pressing column, and the surface of the pressing column is movably connected to the inside of the slot.
[0008] Preferably, connecting blocks are fixedly connected to both sides of the horizontal plate, a sliding sleeve is fixedly connected to the inner cavity of the connecting block, a sliding column is movably connected to the inner cavity of the sliding sleeve, and the bottom of the sliding column is fixedly connected to the top of the base platform.
[0009] Preferably, slots are provided on both sides of the inner cavity of the upper mold, the top surface of the top block is set in an arc shape, and the surface of the top block is movably connected to the inside of the slot.
[0010] Preferably, support plates are fixedly connected to both sides of the bottom of the horizontal plate. The diameter of the support plates is larger than the diameter of the reset spring, and the bottom of the support plates is fixedly connected to the top of the reset spring.
[0011] Preferably, the horizontal plate spans the interior of the lower mold and is movable within the lower mold, the upper mold extends through the front and back sides of the lower mold, and the connecting plate is movable within the lower mold.
[0012] Preferably, the top of the stamping machine is fixedly connected to a fixed bracket, the fixed bracket is arranged in a concave structure, and the bottom of the fixed bracket is fixedly connected to the top of the upright frame.
[0013] The advantages of this utility model are:
[0014] This invention utilizes a tension spring to stretch and deform, and a return spring to compress and deform, which simultaneously pushes the horizontal plate upward. The movement of the horizontal plate drives the vertical plate upward, which in turn drives the push plate. The top block extends into the slot to eject the molded part. This solves the problem that the stamped luggage shell is often placed in the bottom forming mold, making it difficult to remove from the bottom forming mold due to the stamping pressure, thus affecting the stamping effect. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is an exploded view of the lower mold and upper mold structure of this utility model;
[0018] Figure 3 This is a cross-sectional view of the lower mold and upper mold structure of this utility model;
[0019] Figure 4 For the present utility model Figure 3 A magnified view of part A;
[0020] Figure 5 This is a schematic diagram of the connection of the push plate structure of this utility model.
[0021] In the diagram: 1. Stamping die body; 11. Base platform; 12. Lower die; 13. Upper die; 14. Stand; 15. Fixed bracket; 16. Stamping machine; 17. Slotting; 2. Pressing mechanism; 21. Pressing block; 22. Pressing column; 23. Slot; 24. Insert cylinder; 3. Springback mechanism; 31. Vertical plate; 32. Horizontal plate; 33. Connecting plate; 34. Return spring; 35. Tension spring; 36. Support plate; 37. Push plate; 38. Top block; 39. Sliding sleeve; 310. Connecting block; 311. Sliding column. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0024] This application discloses a luggage shell molding and ejection device. (Refer to...) Figure 1 and Figure 5 A luggage shell forming and ejection device includes a stamping die body 1 and a pressing mechanism 2 installed on the surface of the stamping die body 1. The stamping die body 1 includes a base 11, a lower die 12 is fixedly connected to the top of the base 11, an upper die 13 is installed on the top of the lower die 12, a stand 14 is fixedly connected to the surface of the base 11, a stamping machine 16 is fixedly connected to the top of the stand 14, and the output end of the stamping machine 16 is fixedly connected to the top of the upper die 13.
[0025] A springback mechanism 3 is installed at the bottom of the inner cavity of the lower mold 12. The springback mechanism 3 includes a horizontal plate 32. A return spring 34 is installed on both sides of the bottom of the horizontal plate 32. A tension spring 35 is fixedly connected to the top of the horizontal plate 32. The top of the tension spring 35 is fixedly connected to the inside of the lower mold 12. A vertical plate 31 is fixedly connected to both sides of the top of the horizontal plate 32. A push plate 37 is fixedly connected to the top of the vertical plate 31. A top block 38 is fixedly connected to the top of the push plate 37. A connecting plate 33 is fixedly connected to the front and back sides of the horizontal plate 32.
[0026] Reference Figure 2 and Figure 3 The pressing mechanism 2 includes pressing blocks 21 and insertion cylinders 24. There are two pressing blocks 21, which are fixed to the front and back sides of the upper mold 13. The insertion cylinder 24 is fixed to the top of the upright plate 31. The inner cavity of the insertion cylinder 24 is provided with a slot 23. The bottom of the pressing block 21 is fixedly connected to a pressing post 22. The surface of the pressing post 22 is movably connected to the inside of the slot 23. By setting the pressing block 21, the pressing post 22 and the upper mold 13 are stably connected. At the same time, the slot 23 allows the pressing post 22 to be inserted into the inside of the insertion cylinder 24 after it moves downward. This serves as a guide and also pushes the connecting plate 33 downward.
[0027] Reference Figure 3 and Figure 5 Both sides of the horizontal plate 32 are fixedly connected to connecting blocks 310. The inner cavity of the connecting block 310 is fixedly connected to a sliding sleeve 39. The inner cavity of the sliding sleeve 39 is movably connected to a sliding column 311. The bottom of the sliding column 311 is fixedly connected to the top of the base 11. By setting the sliding column 311, the sliding sleeve 39 moves more stably on its surface, thereby playing a guiding role and preventing the connecting block 310 from deviating during movement.
[0028] Reference Figure 2 and Figure 3 The upper mold 13 has slots 17 on both sides of its inner cavity. The top surface of the top block 38 is arc-shaped and the surface of the top block 38 is movably connected to the inside of the slot 17. The slot 17 allows the top block 38 to extend into the interior of the upper mold 13, thereby ejecting the stamped mold and facilitating the discharge of the mold after forming.
[0029] Reference Figure 3 and Figure 4 Support plates 36 are fixedly connected to both sides of the bottom of the horizontal plate 32. The diameter of the support plate 36 is larger than the diameter of the return spring 34, and the bottom of the support plate 36 is fixedly connected to the top of the return spring 34. By setting the support plate 36, the stability of the connection between the return spring 34 and the horizontal plate 32 is improved, and the phenomenon of breakage between the return spring 34 and the horizontal plate 32 is prevented.
[0030] Reference Figure 2 and Figure 3 The horizontal plate 32 spans the interior of the lower mold 12 and moves within the lower mold 12. The upper mold 13 extends through the front and back sides of the lower mold 12. The connecting plate 33 moves within the lower mold 12. The horizontal plate 32 spans the interior of the lower mold 12, enabling it to push the top block 38 above to move. The connecting plate 33 is designed to transmit force.
[0031] Reference Figure 1 The top of the stamping machine 16 is fixedly connected to a fixed bracket 15. The fixed bracket 15 has a concave structure and the bottom of the fixed bracket 15 is fixedly connected to the top of the upright frame 14. The fixed bracket 15 ensures the stability of the stamping machine 16 during operation and prevents the stamping machine 16 from shaking during operation.
[0032] Working principle: First, the suitcase shell is placed on top of the lower mold 12. Then, the upper mold 13 is pushed downward by the stamping press 16 to achieve the stamping effect. At this time, the upper mold 13 pushes the pressing column 22 into the slot 23, causing the connecting plate 33 to move downward. The movement of the connecting plate 33 drives the horizontal plate 32 to move. The movement of the horizontal plate 32 causes the tension spring 35 to stretch and deform. The return spring 34 is then compressed and deformed. The horizontal plate 32 drives the push plate 37 and the top block 38 to move downward. After stamping, the upper mold 13 disengages from the lower mold. Inside the mold 12, until the pressing post 22 moves out of the slot 23, the return spring 34 and tension spring 35 restore their deformation, causing the horizontal plate 32 and connecting plate 33 to move upward. The movement of the horizontal plate 32 drives the connecting block 310 to move, and the connecting block 310 drives the sliding sleeve 39 to slide inside the sliding post 311. At the same time, the movement of the horizontal plate 32 pushes the vertical plate 31 to move upward. The movement of the vertical plate 31 drives the push plate 37 to move, and the movement of the push plate 37 drives the top block 38 to extend into the slot 17 to eject the stamped luggage box shell.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A luggage shell forming and ejection device, characterized in that: The device includes a stamping die body (1) and a pressing mechanism (2) installed on the surface of the stamping die body (1). The stamping die body (1) includes a base (11). A lower die (12) is fixedly connected to the top of the base (11). An upper die (13) is installed on the top of the lower die (12). A stand (14) is fixedly connected to the surface of the base (11). A stamping machine (16) is fixedly connected to the top of the stand (14). The output end of the stamping machine (16) is fixedly connected to the top of the upper die (13). A springback mechanism (3) is installed at the bottom of the inner cavity of the lower mold (12). The springback mechanism (3) includes a horizontal plate (32). A reset spring (34) is installed on both sides of the bottom of the horizontal plate (32). A tension spring (35) is fixedly connected to the top of the horizontal plate (32). The top of the tension spring (35) is fixedly connected to the interior of the lower mold (12). A vertical plate (31) is fixedly connected to both sides of the top of the horizontal plate (32). A push plate (37) is fixedly connected to the top of the vertical plate (31). A top block (38) is fixedly connected to the top of the push plate (37). A connecting plate (33) is fixedly connected to the front and back sides of the horizontal plate (32).
2. The luggage shell forming and ejection device according to claim 1, characterized in that: The pressing mechanism (2) includes a pressing block (21) and an insertion cylinder (24). There are two pressing blocks (21), and the pressing blocks (21) are fixed to the front and back sides of the upper mold (13). The insertion cylinder (24) is fixed to the top of the upright plate (31). The inner cavity of the insertion cylinder (24) is provided with a slot (23). The bottom of the pressing block (21) is fixedly connected to a pressing column (22), and the surface of the pressing column (22) is movably connected to the inside of the slot (23).
3. The luggage shell forming and ejection device according to claim 1, characterized in that: Both sides of the horizontal plate (32) are fixedly connected to connecting blocks (310), the inner cavity of the connecting block (310) is fixedly connected to a sliding sleeve (39), the inner cavity of the sliding sleeve (39) is movably connected to a sliding column (311), and the bottom of the sliding column (311) is fixedly connected to the top of the base (11).
4. The luggage shell forming and ejection device according to claim 1, characterized in that: The upper mold (13) has slots (17) on both sides of its inner cavity. The top surface of the top block (38) is arc-shaped and is movably connected to the inside of the slots (17).
5. The luggage shell forming and ejection device according to claim 1, characterized in that: Support plates (36) are fixedly connected to both sides of the bottom of the horizontal plate (32). The diameter of the support plate (36) is larger than the diameter of the reset spring (34), and the bottom of the support plate (36) is fixedly connected to the top of the reset spring (34).
6. The luggage shell forming and ejection device according to claim 1, characterized in that: The horizontal plate (32) spans the interior of the lower mold (12) and is movable inside the lower mold (12). The upper mold (13) extends through the front and back sides of the lower mold (12), and the connecting plate (33) is movable inside the lower mold (12).
7. The luggage shell forming and ejection device according to claim 1, characterized in that: The top of the stamping machine (16) is fixedly connected to a fixed bracket (15), which has a concave structure and the bottom of the fixed bracket (15) is fixedly connected to the top of the upright frame (14).