A mold

Abstract

The utility model relates to mould technical field discloses a mould, the mould of above -mentioned includes template and type position seat. Template sets up first guide rail structure, and type position seat is equipped with the second guide rail structure of first guide rail structure sliding cooperation. Among them, first guide rail structure includes retainer and a plurality of rollers, and the retainer sets up in template, and a plurality of rollers are along the sliding direction of type position seat and are movably arranged in the retainer, second guide rail structure includes guide strip, and the guide strip is connected in type position seat, and the guide strip is along a plurality of rollers and slides to drive type position seat and slides along template. The utility model discloses the mould, avoids the large -scale mould because of the dead weight and the locking mode force of bearing are big, and leads to the phenomenon of jam and easy in the sliding process to cause the motion trajectory deviation, improves the stability and precision of type position seat sliding, and then guarantees the dimensional accuracy of injection molding part.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a mold. Background Technology

[0002] In the working cycle of injection molds, the mold base is the core moving part. Its reciprocating sliding along the template guide is the key link to realize the mold opening and closing actions. In the mold closing stage, precise displacement is required to ensure that the cavity is closed to form a complete mold cavity, providing a sealed space for the melt to fill the mold. In the mold opening stage, orderly separation is required to allow the molded injection part to leave the cavity and complete the product loading and unloading.

[0003] The requirements for sliding accuracy, stability, and smoothness in this dynamic process increase exponentially with the upgrading of mold specifications. However, for large molds, the self-weight and clamping force they bear are extremely large, far exceeding the stress level of ordinary small and medium-sized molds. This significantly increases the contact stress between the mold base and the mold plate, resulting in greater friction between the mating surfaces. This causes the sliding to become stuck and is prone to causing deviation of the motion trajectory during the sliding process, resulting in fluctuations in the mold closing clearance, which directly affects the dimensional accuracy of the injection molded parts. Utility Model Content

[0004] To address the shortcomings of the prior art, this utility model provides a mold that avoids the jamming and trajectory deviation that can occur during sliding caused by the large weight and clamping force of large molds. This improves the stability and accuracy of the mold base sliding, thereby ensuring the dimensional accuracy of the injection molded parts.

[0005] The technical effect to be achieved by this utility model is realized through the following technical solution:

[0006] This utility model provides a mold, comprising:

[0007] Template, the template being provided with a first guide rail structure; and

[0008] A positioning seat, wherein the positioning seat is provided with a second guide rail structure that slides in cooperation with the first guide rail structure;

[0009] The first guide rail structure includes a retainer and a plurality of rollers. The retainer is disposed on the template, and the plurality of rollers are movably disposed in the retainer along the sliding direction of the mold seat. The second guide rail structure includes a guide bar connected to the mold seat. The guide bar slides along the plurality of rollers to drive the mold seat to slide along the template.

[0010] In some implementations, the template has an installation groove, the first guide rail structure is disposed on the side wall of the installation groove, and the mold seat is slidably disposed in the installation groove.

[0011] In this implementation, the enclosed space formed by the mounting groove can provide lateral constraints for the mold base. Combined with the guiding effect of the first guide rail structure, it further prevents the mold base from shifting and shaking during sliding, thus making the mold base more stable during sliding.

[0012] In some implementations, the template is further provided with a first clamping structure, and the mold seat is further provided with a second clamping structure. The second clamping structure cooperates with the first clamping structure to limit the mold seat to slide within the mounting groove.

[0013] In this implementation, the first clamping structure limits the positioning seat within the mounting groove, preventing the positioning seat from detaching from the mounting groove during sliding, which would lead to the failure of the first guide rail structure to cooperate with the second guide rail structure.

[0014] In some implementations, the first clamping structure includes a clamping guide rail disposed on the side wall of the mounting groove, and the second clamping structure includes an abutment portion connected to the outside of the mold base, the abutment portion abutting against the clamping guide rail.

[0015] In this implementation, the abutting part cooperates with the clamping guide rail to avoid lateral offset and swaying when the mold seat slides. It works in conjunction with the guiding function of the first guide rail structure and the second guide rail structure to ensure the linearity of the mold seat movement, thereby ensuring the accuracy of the mold seat's moving position.

[0016] In some implementations, a limiting groove is formed between the abutting part and the outer wall of the mold seat, and the limiting groove is slidably disposed along the clamping guide rail.

[0017] In some implementations, the first guide rail structure is connected to the clamping guide rail, and the second guide rail structure is connected to the abutment portion.

[0018] In this implementation, the first guide rail structure is slidably connected to the second guide rail structure, and the abutting part is simultaneously clamped by the clamping guide rail, which prevents the mold seat from detaching from the mounting groove during the sliding process, thereby making the overall structure more reliable.

[0019] In some implementations, the clamping guide rail is arranged vertically, the first guide rail structure is connected to the bottom surface of the clamping guide rail, and the second guide rail structure is connected to the top surface of the abutment portion.

[0020] In some implementations, the bottom surface of the clamping guide rail is provided with a receiving groove, and the second guide rail structure is installed in the receiving groove.

[0021] In some implementations, the mold further includes a drive mechanism that is driven to the mold base so that the mold base is slidably connected to the template in a vertical direction.

[0022] In some implementations, the drive mechanism includes a drive cylinder having a piston rod that is driveably connected to the mounting seat.

[0023] In summary, this utility model has at least the following advantages:

[0024] The mold provided by this utility model has multiple rollers movably mounted in a retainer along the sliding direction of the mold base. The guide strip of the mold base slides along the multiple rollers, so that the mold base can be smoothly and stably connected to the template. Through the roller-type rolling guide rail structure, sliding friction is converted into rolling friction, thereby reducing friction and jamming. In addition, the multiple rollers form a multi-point support system, so that the load distribution is more uniform and stress concentration at a single point is avoided. This enhances the heavy load-bearing capacity of the guide rail, prevents jamming and easy deviation of the movement trajectory during sliding in large molds due to their own weight and large clamping force, improves the stability and accuracy of the sliding of the mold base, and thus ensures the dimensional accuracy of the injection molded parts. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the mold structure in Example 1;

[0026] Figure 2 for Figure 1 Exploded view of the mold shown;

[0027] Figure 3 for Figure 2 The image shows a magnified view of a portion of the mold at point A.

[0028] Figure 4 This is a schematic diagram of the first guide rail structure and the clamping guide rail structure in Example 1.

[0029] Marked in the image:

[0030] 100. Template; 101. Mounting slot; 110. First guide rail structure; 111. Cage; 112. Roller; 120. First clamping structure; 121. Clamping guide rail; 1211. Receiving slot;

[0031] 200, Positioning seat; 210, Second guide rail structure; 211, Guide bar; 220, Second clamping structure; 221, Abutment part; 222, Limiting groove;

[0032] 300, drive mechanism; 310, drive cylinder; 320, piston rod. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are some, but not all, of the embodiments of this utility model.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] Example 1:

[0036] Please see the appendix Figure 1 ~Appendix Figure 4 The mold of this utility model includes a template 100 and a mold base 200.

[0037] In this regard, please combine Figures 1 to 4 , Figure 1 The diagram illustrates the structural relationship between the template 100 and the positioning base 200 in this embodiment of the present invention. Figures 2 to 4 The diagram illustrates the structural relationship between the first guide rail structure 110 and the second guide rail structure 210 in this embodiment of the present invention. Specifically, the template 100 is provided with the first guide rail structure 110; the mold base 200 is provided with the second guide rail structure 210, which slides in cooperation with the first guide rail structure 110. The first guide rail structure 110 includes a retainer 111 and a plurality of rollers 112. The retainer 111 is disposed on the template 100, and the plurality of rollers 112 are movably disposed in the retainer 111 along the sliding direction of the mold base 200. The second guide rail structure 210 includes a guide bar 211, which is connected to the mold base 200. The guide bar 211 slides along the plurality of rollers 112 to drive the mold base 200 to slide along the template 100.

[0038] In this embodiment, the mold base 200 is smoothly and stably slidably connected to the mold plate 100 through the cooperation of the first guide rail structure 110 and the second guide rail structure 210, thereby making the mold closing and opening process more stable during injection molding, ensuring the movement accuracy of the mold base 200, and thus ensuring the dimensional accuracy of the injection molded part. Specifically, multiple rollers 112 are movably disposed in the retainer 111 along the sliding direction of the mold base 200. When the mold is closed or opened, the guide strip 211 of the mold base 200 slides along the multiple rollers 112, so that the mold base 200 slides along the mold plate 100.

[0039] It is understandable that the multiple rollers 112 constrained by the cage 111 transform traditional sliding friction into rolling friction, significantly reducing the coefficient of friction and frictional force, effectively eliminating the "stick-slip" phenomenon, and enabling the mold base 200 to maintain a stable motion state under heavy clamping force, avoiding mold closing impact. Simultaneously, the circular motion characteristics of the rollers 112 and the multi-point support system formed by their dense arrangement improve the linearity of motion, effectively preventing the mold base 200 from tilting or shifting under heavy load, reducing mold closing clearance fluctuations, and thus improving overall motion accuracy. Furthermore, the cage 111 makes the load distribution more uniform, avoiding single-point stress concentration, reducing wear, thereby extending the service life of components and improving the stability of the mold during long-term cyclic operation.

[0040] In the aforementioned mold, multiple rollers 112 are movably disposed in the retainer 111 along the sliding direction of the mold base 200. The guide strip 211 of the mold base 200 slides along the multiple rollers 112, so that the mold base 200 is smoothly and stably connected to the template 100. Through the roller-type rolling guide rail structure, sliding friction is converted into rolling friction, thereby reducing friction and jamming. Furthermore, the multiple rollers 112 form a multi-point support system, so that the load distribution is more uniform, avoiding stress concentration at a single point, thereby enhancing the heavy load-bearing capacity of the guide rail. This prevents large molds from jamming due to their own weight and large clamping force, and prevents the phenomenon of easy movement trajectory deviation during sliding. It improves the stability and accuracy of the sliding of the mold base 200, thereby ensuring the dimensional accuracy of the injection molded parts.

[0041] Example 2:

[0042] The difference between this embodiment and Embodiment 1 is that this embodiment further optimizes the structure of the mold of this utility model. Please refer to the appendix. Figure 2 ~Appendix Figure 3 .

[0043] In this regard, please combine Figures 2 to 3 , Figure 2 and Figure 3 The diagram illustrates the structural relationship between the mounting groove 101 and the formwork seat 200 in this embodiment of the present invention. Specifically, the template 100 has a mounting groove 101, the first guide rail structure 110 is disposed on the side wall of the mounting groove 101, and the formwork seat 200 is slidably disposed within the mounting groove 101.

[0044] In this embodiment, the enclosing space formed by the mounting groove 101 provides lateral constraint for the mold base 200. Combined with the guiding function of the first guide rail structure 110, this further prevents the mold base 200 from shifting or wobbling during sliding, thus making the mold base 200 more stable during sliding. Furthermore, the slidable arrangement of the mold base 200 within the mounting groove 101 allows for a more compact assembly of the first guide rail structure 110 and the second guide rail structure 210, thereby reducing the overall space occupied by the mold and making the overall structure more compact.

[0045] In some preferred embodiments, please refer to Figure 3 , Figure 3 The diagram illustrates the structural relationship between the first clamping structure 120 and the second clamping structure 220 in this embodiment of the invention. Specifically, the template 100 is further provided with the first clamping structure 120, and the mold base 200 is further provided with the second clamping structure 220. The second clamping structure 220 cooperates with the first clamping structure 120 to limit the mold base 200 to slide within the mounting groove 101. The first clamping structure 120 limits the mold base 200 within the mounting groove 101, preventing the mold base 200 from detaching from the mounting groove 101 during sliding, thus avoiding the failure of the cooperation between the first guide rail structure 110 and the second guide rail structure 210. Through the cooperation of the first clamping structure 120 and the second clamping structure 220, an additional limit is formed on the basis of the basic constraint of the mounting groove 101, effectively limiting the radial movement or axial displacement that may occur in the mold base 200 during sliding, further ensuring the accuracy of the motion trajectory and avoiding positional deviations caused by heavy loads or high-speed movement.

[0046] In some preferred embodiments, the first clamping structure 120 includes a clamping guide rail 121 disposed on the side wall of the mounting groove 101, and the second clamping structure 220 includes an abutment portion 221 connected to the outside of the mold base 200, the abutment portion 221 abutting against the clamping guide rail 121. The abutment portion 221 abuts against the clamping guide rail 121, preventing lateral offset and swaying of the mold base 200 during sliding, and cooperating with the guiding function of the first guide rail structure 110 and the second guide rail structure 210 to ensure the linearity of the movement of the mold base 200, thereby ensuring the accuracy of the moving position of the mold base 200.

[0047] In some preferred embodiments, a limiting groove 222 is formed between the abutment portion 221 and the outer wall of the mold base 200, and the limiting groove 222 is slidably disposed along the clamping guide rail 121. Increasing the abutment area between the mold base 200 and the clamping guide rail 121 enhances the sliding connection stability between the mold base 200 and the clamping guide rail 121. The clamping guide rail 121 clamps the abutment portion 221 within the mounting groove 101, preventing the mold base 200 from tilting laterally during sliding, thus making the movement trajectory of the mold base 200 more precise and enhancing the overall structural stability.

[0048] In some preferred embodiments, the first guide rail structure 110 is connected to the clamping guide rail 121, and the second guide rail structure 210 is connected to the abutment portion 221. While the first guide rail structure 110 is slidably connected to the second guide rail structure 210, the abutment portion 221 is simultaneously clamped by the clamping guide rail 121, preventing the mold seat 200 from disengaging from the mounting groove 101 during sliding, thereby making the overall structure more reliable.

[0049] In some preferred embodiments, the clamping guide rail 121 is arranged vertically, the first guide rail structure 110 is connected to the bottom surface of the clamping guide rail 121, and the second guide rail structure 210 is connected to the top surface of the abutment portion 221. The mold base 200 slides vertically during mold closing or opening. The first guide rail structure 110 and the second guide rail structure 210 are respectively connected to the bottom surface of the clamping guide rail 121 and the top surface of the abutment portion 221. The guide bar 211 slides along multiple rollers 112. The clamping guide rail 121 prevents the mold base 200 from shifting or shaking, ensuring the sliding stability and positional accuracy of the mold base 200.

[0050] In some preferred embodiments, the bottom surface of the clamping guide rail 121 is provided with a receiving groove 1211, and the second guide rail structure 210 is installed in the receiving groove 1211. The receiving groove 1211 embeds the second guide rail structure 210 into the clamping guide rail 121, avoiding structural protrusions caused by external installation, so that the clamping guide rail 121 and the second guide rail structure 210 form an integrated flat layout, effectively reducing the overall space occupied by both in the height direction, thereby making the overall structure more compact. Furthermore, the receiving groove 1211 provides a surrounding protection for the second guide rail structure 210, which can prevent external impurities, debris, or waste generated during the injection molding process from entering the guide rail mating area, reducing the wear or jamming of foreign objects on the sliding surface of the guide rail, thereby extending the service life of the second guide rail structure 210.

[0051] Example 3:

[0052] The difference between this embodiment and Embodiment 2 is that this embodiment further optimizes the structure of the mold of this utility model. Please refer to the appendix. Figure 1 .

[0053] The mold also includes a drive mechanism 300, which is driven and connected to the mold base 200 so that the mold base 200 is slidably connected to the template 100 in the vertical direction.

[0054] In this embodiment, the drive mechanism 300 drives the mold base 200 to move, thereby causing the mold base 200 to slide relative to the template 100 in the vertical direction. The first guide rail structure 110 and the second guide rail structure 210 cooperate to guide, reducing the starting torque of the drive mechanism 300, while ensuring smooth lifting and lowering under heavy load, thus making the overall structure more reliable.

[0055] In some preferred embodiments, the drive mechanism 300 includes a drive cylinder 310, which has a piston rod 320 that is driven and connected to the mold base 200. The drive cylinder 310 can flexibly change its output force through air pressure adjustment, providing a matching drive force according to the weight, load, and motion requirements of the mold base 200. This ensures smooth starting under heavy load conditions and stable operation under light load or low speed conditions, avoiding shocks caused by excessive power or jamming caused by insufficient power.

[0056] In this invention, multiple rollers 112 are movably disposed in a retainer 111 along the sliding direction of a mold base 200. The guide strip 211 of the mold base 200 slides along the multiple rollers 112, allowing the mold base 200 to slide smoothly and stably connected to the template 100. The roller-type rolling guide structure converts sliding friction into rolling friction, thereby reducing friction and jamming. Furthermore, the multiple rollers 112 form a multi-point support system, making the load distribution more uniform and avoiding stress concentration at single points. This enhances the heavy-duty bearing capacity of the guide rail, preventing jamming and trajectory deviation during sliding in large molds due to their own weight and large clamping force. This improves the stability and precision of the sliding of the mold base 200, thus ensuring the dimensional accuracy of the injection molded parts.

[0057] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0058] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0059] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0060] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0061] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A mold, characterized in that, include: Template (100), wherein the template (100) is provided with a first guide rail structure (110); and The formwork seat (200) is provided with a second guide rail structure (210) that slides with the first guide rail structure (110). The first guide rail structure (110) includes a retainer (111) and a plurality of rollers (112). The retainer (111) is disposed on the template (100), and the plurality of rollers (112) are movably disposed in the retainer (111) along the sliding direction of the mold seat (200). The second guide rail structure (210) includes a guide bar (211) connected to the mold seat (200). The guide bar (211) slides along the plurality of rollers (112) to drive the mold seat (200) to slide along the template (100).

2. The mold according to claim 1, characterized in that, The template (100) has an installation groove (101), the first guide rail structure (110) is disposed on the side wall of the installation groove (101), and the mold seat (200) is slidably disposed in the installation groove (101).

3. The mold according to claim 2, characterized in that, The template (100) is also provided with a first clamping structure (120), and the mold seat (200) is also provided with a second clamping structure (220). The second clamping structure (220) cooperates with the first clamping structure (120) to limit the mold seat (200) to slide within the mounting groove (101).

4. The mold according to claim 3, characterized in that, The first clamping structure (120) includes a clamping guide rail (121) disposed on the side wall of the mounting groove (101). The second clamping structure (220) includes an abutment portion (221) connected to the outside of the mold base (200), and the abutment portion (221) abuts against the clamping guide rail (121).

5. The mold according to claim 4, characterized in that, A limiting groove (222) is formed between the abutting part (221) and the outer wall of the positioning seat (200), and the limiting groove (222) is slidably disposed along the clamping guide rail (121).

6. The mold according to claim 4, characterized in that, The first guide rail structure (110) is connected to the clamping guide rail (121), and the second guide rail structure (210) is connected to the abutment part (221).

7. The mold according to claim 6, characterized in that, The clamping guide rail (121) is arranged in a vertical direction, the first guide rail structure (110) is connected to the bottom surface of the clamping guide rail (121), and the second guide rail structure (210) is connected to the top surface of the abutment part (221).

8. The mold according to claim 7, characterized in that, The bottom surface of the clamping guide rail (121) is provided with a receiving groove (1211), and the second guide rail structure (210) is installed in the receiving groove (1211).

9. The mold according to claim 1, characterized in that, It also includes a drive mechanism (300) that is driven to the mold base (200) so that the mold base (200) is slidably connected to the template (100) in the vertical direction.

10. The mold according to claim 9, characterized in that, The drive mechanism (300) includes a drive cylinder (310) having a piston rod (320) which is drivenly connected to the mounting seat (200).

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