Lower die shoe structure for a die

By combining hydraulic cylinders, guide rods, slots, magnetic blocks, and silicone buffer layers, the stability problem of the lower mold base and the cracking problem of the pad plate during the fixing process are solved, thus achieving stable fixing and buffering effect of the mold.

CN224348170UActive Publication Date: 2026-06-12YIXING DINGJIAN MOULD TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YIXING DINGJIAN MOULD TECH CO LTD
Filing Date
2025-07-22
Publication Date
2026-06-12

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    Figure CN224348170U_ABST
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Abstract

The utility model discloses a lower mould base structure of mould, it includes base, the sidewall of base is connected with hydraulic cylinder through bolt, the sidewall bushing of hydraulic cylinder has the guide rod, one end of guide rod is connected with the lower plate through bolt, the top of lower plate is equipped with the clamping slot, the inner wall of clamping slot is equipped with the square groove, the inner wall welding of square groove has spring no.
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Description

Technical Field

[0001] This utility model relates to the field of mold base technology, specifically to a lower mold base structure for a mold. Background Technology

[0002] Molds are various molds and tools used in industrial production to obtain the desired products through injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. A typical mold consists of an upper and lower mold base. In addition to processing, the lower mold base mainly serves to guide and support the upper mold base. Therefore, a lower mold base structure is required.

[0003] Although the existing mold base structure has many beneficial effects, the following problems still exist: When fixing the mold to the surface of the mold base, the stability of molds with high height is low during the fixing process. Secondly, when using the mold base, a pad is often needed to buffer the pressure, but the pads in the existing technology are often integrated structural designs, which makes them prone to cracking during the pressure bearing process. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] 1. Technical problems to be solved:

[0006] In order to solve the problems mentioned above, such as the low stability of molds with high heights during the fixing process and the fact that the pads in the existing technology are often integrated structural designs, which are prone to cracking during the pressure bearing process, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a lower mold base structure for a mold, which aims to solve the problem of low stability of molds with high heights during the fixing process and to minimize cracking of the pad during pressure bearing.

[0008] 2. Technical Solution:

[0009] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0010] A lower mold base structure includes a base, a hydraulic cylinder bolted to the side wall of the base, a guide rod sleeved on the side wall of the hydraulic cylinder, a lower plate bolted to one end of the guide rod, a slot on the top of the lower plate, a magnetic block fixed to the inner side wall of the slot, a square groove on the inner wall of the slot, a spring welded to the inner wall of the square groove, a locking block welded to one side of the spring, a crossbar fixed to the side wall of the locking block, a handle fixed to one end of the crossbar, a fixing block bolted to the side wall of the lower plate, a fixing groove inside the fixing block, a fixing strip slidably connected to the inner wall of the fixing groove, an upper plate bolted to the top of the side wall of the fixing strip, and a locking plate fixed to the bottom of the upper plate.

[0011] In a preferred embodiment of the lower mold base structure of this utility model, the base has a groove inside, and a damper two is connected to the bottom of the groove by bolts. A spring two is sleeved on the outer circumference of the damper two, and a pad is welded to the top of the spring two. A buffer layer is provided inside the pad, and the buffer layer is made of silicone.

[0012] In a preferred embodiment of the lower mold base structure of this utility model, a circular plate is bolted to the top of the base, and a damper is bolted to the top of the circular plate. A spring is sleeved on the outer circumference of the damper. There are multiple circular plates, which are symmetrically distributed. The structural design of the spring and the damper helps to better buffer the impact force generated when the mold base is fixed.

[0013] In a preferred embodiment of the lower mold base structure of this utility model, the hydraulic cylinders are multiple and symmetrically distributed.

[0014] In a preferred embodiment of the lower mold base structure of the mold according to the present invention, there are multiple springs and dampers, and the springs and dampers are all equidistantly distributed.

[0015] In a preferred embodiment of the lower mold base structure of this utility model, the length, width, and height of the clamping block match the length, width, and height of the inner wall of the clamping plate, and rubber pads are adhered to the side walls of both the upper plate and the lower plate.

[0016] As a preferred embodiment of the lower mold base structure of this utility model, there are multiple fixing strips, which are linearly and equidistantly distributed. The structure design of the fixing strips engaging with the fixing grooves facilitates better maintenance and stability after the lower plate is connected to the upper plate.

[0017] 3. Beneficial effects:

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] The lower mold base structure of this type of mold allows the crossbar to be pulled by the magnetic force of the granulation block when the handle is pressed. Under the action of the spring, the granulation block is lowered and pressed into the inside of the square groove. This makes it easy to clamp the plate into the inner wall of the groove. Thus, the granulation block is fixed to the inner wall of the plate by the elastic force of the spring and the attraction force of the magnetic block. In addition, during the process of the granulation block engaging the groove, the fixing strip is also engaged into the inside of the fixing groove. This helps to fix the upper plate to the top of the lower plate, thus providing a certain degree of stability for fixing a taller mold.

[0020] The lower mold base structure of this type of mold, through the structural design of damper two and spring two, combined with the structural design of the silicone buffer layer inside the pad, facilitates better buffering of the pressure borne by the pad, thereby reducing the occurrence of pad cracking and thus helping to better maintain the service life of the pad. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. 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. Among them:

[0022] Figure 1 This is a schematic diagram of the overall structure of the lower mold base of a mold according to the present invention;

[0023] Figure 2 This is a cross-sectional schematic diagram of the lower plate structure of the lower mold base structure of a mold according to the present invention;

[0024] Figure 3 This utility model relates to a lower mold base structure for a mold. Figure 2 A schematic diagram of the structure of section A in the middle;

[0025] Figure 4 This utility model relates to a lower mold base structure for a mold. Figure 2 A schematic diagram of the C-section structure;

[0026] Figure 5 This is a cross-sectional schematic diagram of the base structure of the lower mold base structure of a mold according to the present invention;

[0027] Figure 6 This utility model relates to a lower mold base structure for a mold. Figure 5 A schematic diagram of the structure of section B in the middle.

[0028] The following are the labels in the diagram: 1. Base; 2. Groove; 3. Circular plate; 4. Spring 1; 5. Damper 1; 6. Hydraulic cylinder; 7. Guide rod; 8. Lower plate; 9. Rubber pad; 10. Slot; 11. Block; 12. Crossbar; 13. Handle; 14. Magnetic block; 15. Square slot; 16. Spring 3; 17. Clamping plate; 18. Upper plate; 19. Pad plate; 20. Damper 2; 21. Spring 2; 22. Fixing groove; 23. Fixing strip; 24. Fixing block; 25. Buffer layer. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] This utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not be construed as limiting the scope of protection of this utility model. In actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0031] The orientation or positional relationship indicated in the terminology is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0032] The term "connection method" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0034] This utility model provides an overall structural diagram of an embodiment of a lower mold base structure, including:

[0035] Please see Figures 1-6 This utility model provides a technical solution:

[0036] A lower mold base structure includes a base 1. A hydraulic cylinder 6 is bolted to the side wall of the base 1. A guide rod 7 is sleeved on the side wall of the hydraulic cylinder 6. One end of the guide rod 7 is bolted to a lower plate 8. A slot 10 is formed on the top of the lower plate 8. A magnetic block 14 is fixed to the inner side wall of the slot 10. A square groove 15 is formed on the inner wall of the slot 10. A spring 16 is welded to the inner wall of the square groove 15. A locking block 11 is welded to one side of the spring 16. A crossbar 12 is fixed to the side wall of the locking block 11. A handle 13 is fixed to one end of the crossbar 12. A fixing block 24 is bolted to the side wall of the lower plate 8. A fixing groove 22 is formed inside the fixing block 24. A fixing strip 23 is slidably connected to the inner wall of the fixing groove 22. The top of the side wall of the fixing strip 23 is connected to the upper plate 18 by bolts. A clamping plate 17 is fixed at the bottom of the upper plate 18. By pressing the handle 13, the crossbar 12 can drive the clamping block 11 and the magnetic block 14 of the threshing block 14 to pull the clamping block 11 down and press it into the inside of the square groove 15 under the action of the spring 16. This makes it easy to clamp the clamping plate 17 into the inner wall of the groove 10. Thus, the clamping block 11 is fixed to the inner wall of the clamping plate 17 by the elastic force of the spring and the attraction of the magnetic block 14. This is beneficial to fixing the upper plate 18 to the top of the lower plate 8, and thus to a certain extent, it is beneficial to fix the higher mold more stably.

[0037] It is worth noting that, in order to better maintain the service life of the pad 19, specifically, the base 1 has a groove 2 inside, and the bottom of the groove 2 is connected to a damper 20 by bolts. A spring 21 is sleeved on the outer circumference of the damper 20, and the pad 19 is welded to the top of the spring 21. The pad 19 has a buffer layer 25 inside, and the buffer layer 25 is made of silicone. Through the structural design of the damper 20 and the spring 21, combined with the structural design of the silicone buffer layer 25 inside the pad 19, the pressure borne by the pad 19 can be better buffered, thereby reducing the occurrence of cracking of the pad 19 and thus helping to better maintain the service life of the pad 19.

[0038] Next, in order to facilitate better positioning of the upper mold base, specifically, the top of the base 1 is connected to a circular plate 3 by bolts, the top of the circular plate 3 is connected to a damper 5 by bolts, and a spring 4 is sleeved on the outer circumference of the damper 5. There are multiple circular plates 3, which are symmetrically distributed. Through the structural design of the damper 5 and the spring 4, it is easy to better position the upper mold base.

[0039] Meanwhile, in order to better clamp and fix the mold in opposite directions, there are multiple hydraulic cylinders 6, which are symmetrically distributed. The symmetrical distribution of the hydraulic cylinders 6 facilitates better clamping and fixing of the mold in opposite directions.

[0040] The working principle of hydraulic cylinder 6 is to achieve mechanical movement through the pressure transmission of hydraulic oil in the sealed cavity. When the hydraulic pump pumps oil into one end of the cylinder, the resulting pressure pushes the piston to move to the other end, thereby driving the guide rod 7 to extend or retract. When oil is supplied in the opposite direction, the piston moves in the opposite direction. By controlling the flow direction and pressure of the oil, precise linear reciprocating motion or force output can be achieved. The magnitude of its power depends on the product of the oil pressure and the effective area of ​​the piston. This is existing technology, and here we only refer to hydraulic cylinder 6 and guide rod 7 as substitutes.

[0041] Furthermore, in order to maintain a good buffering and pressure reduction effect during the process of positioning and fixing the lower mold base in the upper mold base, there are multiple springs 21 and dampers 20. The springs 21 and dampers 20 are all equidistantly distributed. Through the structural design of the equidistantly distributed springs 21 and dampers 20, it is easy to maintain a good buffering and pressure reduction effect during the process of positioning and fixing the lower mold base in the upper mold base.

[0042] It is worth noting that, in order to facilitate fixing the upper plate 18 to the top of the lower plate 8, specifically, the length, width and height of the locking block 11 match the length, width and height of the inner wall of the locking plate 17. Rubber pads 9 are glued to the side walls of both the upper plate 18 and the lower plate 8. With the locking block 11 and the inner wall of the locking plate 17 matching in length, width and height, it is convenient for the locking block 11 to magnetically attract the magnetic block 14 while the spring 16 exerts its elastic force, thereby facilitating the locking block 11 to engage with the inner wall of the locking plate 17, thus facilitating the fixing of the upper plate 18 to the top of the lower plate 8.

[0043] Finally, in order to play a cooperating and fixing role in the process of connecting the lower plate 8 to the upper plate 18, there are multiple fixing strips 23. The fixing strips 23 are linearly and equidistantly distributed. The fixing strips 23 designed in an equidistant distribution form can play a cooperating and fixing role in the process of connecting the lower plate 8 to the upper plate 18.

[0044] In addition, the circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the internal structure and method.

[0045] Combination Figures 1-6 The lower mold base structure of this embodiment is used in the following specific way:

[0046] 1: When using this type of mold, after the operator moves the base 1 to a suitable position, the hydraulic cylinder 6 is driven, so that the guide rod 7 drives the lower plate 8 to abut against the mold on the inner wall of the groove 2. During the movement, the rubber pad 9 bonded to the side wall of the lower plate 8 provides good protection. The structure design of the spring-4 and damper-5 provided on the top of the circular plate 3 is conducive to better positioning of the upper mold base.

[0047] 2: When the mold is high, the operator can press the handle 13 on one side of the lower plate 8, so that the crossbar 12 can drive the suction force of the threshing magnetic block 14 of the clamping block 11 under the action of the spring 16 and the hand pressure, and press the clamping block 11 into the inside of the square groove 15. At this time, the operator can hold the upper plate 18 and insert the fixing strip 23 into the fixing groove 22 opened on the inner wall of the fixing block 24. During the descent, the clamping plate 17 at the bottom of the upper plate 18 also descends and clamps into the inner wall of the groove 10. Since the length, width and height of the inner wall of the clamping plate 17 match the clamping block 11, it is easy to release the handle 13, so that the crossbar 12 drives the clamping block 11 to clamp into the inner wall of the clamping plate 17 under the dual action of the elastic force of the spring 16 and the attraction force of the magnetic block 14. This is conducive to fixing the upper plate 18 to the top of the lower plate 8, and thus to a certain extent, it is conducive to more stable fixing of the higher mold.

[0048] 3: When the device needs to provide better pressure relief for the pad 19, the structural design of the damper 20 and the spring 21, combined with the structure of the silicone buffer layer 25 inside the pad 19, facilitates better buffering of the pressure borne by the pad 19 during the operation of the mold base. This helps to reduce the occurrence of cracking of the pad 19 and thus helps to better maintain the service life of the pad 19.

[0049] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A lower mold base structure for a mold, characterized in that, Includes a base (1), the side wall of which is bolted to a hydraulic cylinder (6), the side wall of which is fitted with a guide rod (7), one end of which is bolted to a lower plate (8), the top of which has a slot (10), the inner side wall of which is fixed with a magnet (14), the inner wall of which has a square groove (15), the inner wall of which is welded with a spring three (16), one side of which has a square groove (15) A locking block (11) is welded on. A crossbar (12) is fixed on the side wall of the locking block (11). A handle (13) is fixed on one end of the crossbar (12). A fixing block (24) is bolted to the side wall of the lower plate (8). A fixing groove (22) is opened inside the fixing block (24). A fixing strip (23) is slidably connected to the inner wall of the fixing groove (22). An upper plate (18) is bolted to the top of the side wall of the fixing strip (23). A locking plate (17) is fixed to the bottom of the upper plate (18).

2. The lower mold base structure of the mold according to claim 1, characterized in that, The base (1) has a groove (2) inside. The bottom of the groove (2) is connected to a damper (20) by bolts. A spring (21) is sleeved on the outer circumference of the damper (20). A pad (19) is welded to the top of the spring (21). A buffer layer (25) is provided inside the pad (19). The buffer layer (25) is made of silicone.

3. The lower mold base structure of the mold according to claim 1, characterized in that, The top of the base (1) is connected to a circular plate (3) by bolts. The top of the circular plate (3) is connected to a damper (5) by bolts. A spring (4) is sleeved on the outer circumference of the damper (5). There are multiple circular plates (3), and the circular plates (3) are symmetrically distributed.

4. The lower mold base structure of the mold according to claim 1, characterized in that, There are multiple hydraulic cylinders (6), and the hydraulic cylinders (6) are symmetrically distributed.

5. The lower mold base structure of the mold according to claim 2, characterized in that, There are multiple springs (21) and dampers (20), and the springs (21) and dampers (20) are all equidistantly distributed.

6. The lower mold base structure of the mold according to claim 1, characterized in that, The length, width and height of the card block (11) match the length, width and height of the inner wall of the card plate (17), and rubber pads (9) are glued to the side walls of the upper plate (18) and the lower plate (8).

7. The lower mold base structure of the mold according to claim 1, characterized in that, There are multiple fixing strips (23), and the fixing strips (23) are arranged in a linear equidistant distribution.