A mold core-pulling anti-collision structure

Abstract

The utility model provides a mold core-pulling anti-collision structure, including a lower mold, an upper mold and a base, a push cylinder for controlling the lower mold to move up and down is arranged on the base; a cavity is arranged between the lower mold and the upper mold; a slider is arranged on the upper end of the lower mold, and an inserting pin is arranged on the end of the slider close to the cavity, and also includes a driving mechanism for controlling the movement of the slider; it also includes a first ejector pin and a second ejector pin fixed on the base, the first ejector pin can be inserted into the cavity to eject the finished product; the second ejector pin is located below the slider, and a through hole suitable for the second ejector pin to be inserted is vertically arranged on the slider, and when the second ejector pin can be inserted into the through hole, the inserting pin withdraws from the cavity. By arranging a second ejector pin that moves synchronously with the first ejector pin during demoulding, it is avoided that when the driving device fails, the inserting pin does not withdraw from the cavity, causing the first ejector pin to collide with the inserting pin and cause damage, thereby ensuring stable production.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a mold core-pulling anti-collision structure. Background Art

[0002] At present, injection molds mainly include a movable mold, a fixed mold matched with the movable mold, and a core pulling mechanism installed on the movable mold. When the mold is opened, the core pulling mechanism controls the movable mold to pull out one end to complete the core pulling action, the fixed and movable molds are separated, and the demolding component inside the movable mold ejects the molded product to complete the demolding. However, if the core pulling mechanism fails, the demolding component will be output on the movable mold that is still in the cavity, thereby damaging the movable mold and affecting subsequent production.

[0003] In view of this, the applicant filed this application after studying the existing technology. Utility Model Content

[0004] The utility model provides a mold core-pulling anti-collision structure, aiming to improve at least one of the above technical problems.

[0005] In order to solve the above technical problems, the utility model provides a mold core-pulling anti-collision structure, comprising a lower mold, an upper mold and a base, the lower mold is arranged above the base, and a pushing cylinder for controlling the up and down movement of the lower mold is arranged on the base; a cavity is arranged between the lower mold and the upper mold; a slider is slidably arranged on the upper end of the lower mold, and an insert pin is arranged at one end of the slider close to the cavity; it also includes a driving mechanism, and the driving mechanism is used to control the slider to approach or move away from the cavity; it also includes a first ejector pin and a second ejector pin fixed on the base, the first ejector pin can be extended into the cavity to eject the finished product; the second ejector pin is located below the slider, and a through hole suitable for the insertion of the second ejector pin is vertically arranged on the slider, and when the second ejector pin can be inserted into the through hole, the insert pin withdraws from the cavity.

[0006] As a further optimization, the driving mechanism includes an inclined guide column fixedly arranged at the bottom of the upper mold and an inclined pin hole arranged on the sliding block, and the inclined pin hole is suitable for inserting the inclined guide column.

[0007] As a further optimization, the oblique pin hole is arranged through the slider, and a groove is arranged at the upper end of the upper mold, and the groove is located below the oblique pin hole.

[0008] As a further optimization, two oblique pin holes are provided on the slider.

[0009] As a further optimization, a plurality of inlay pins are provided on the slider.

[0010] As a further optimization, at least four first ejector pins are provided.

[0011] As a further optimization, the end of the second ejector pin is arranged in an arc shape.

[0012] By adopting the above technical solution, the utility model can achieve the following technical effects:

[0013] The present application provides a mold core-pulling anti-collision structure, which includes a lower mold, an upper mold and a base, and a push cylinder for controlling the upper and lower movements of the lower mold is arranged on the base; a cavity is arranged between the lower mold and the upper mold; a slider is arranged at the upper end of the lower mold, and an inserting pin is arranged at one end of the slider close to the cavity, and also includes a driving mechanism for controlling the movement of the slider; it also includes a first ejector pin and a second ejector pin fixed on the base, and the first ejector pin can be inserted into the cavity to eject the finished product; the second ejector pin is located below the slider, and a through hole suitable for the second ejector pin to be inserted is vertically arranged on the slider, and when the second ejector pin can be inserted into the through hole, the inserting pin withdraws from the cavity. By arranging a second ejector pin that moves synchronously with the first ejector pin during demoulding, it is avoided that when the driving device fails, the inserting pin does not withdraw from the cavity, and the first ejector pin hits the inserting pin and causes damage, thereby ensuring stable production. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a partial perspective structural schematic diagram of a mold core-pulling anti-collision structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the lower mold of the utility model viewed from above;

[0017] Figure 3 This utility model Figure 2 The enlarged structural diagram at A in the middle;

[0018] Figure 4 It is a schematic diagram of a local change structure of a mold core-pulling anti-collision structure of the utility model;

[0019] Figure 5 It is a schematic diagram of the structure when the second ejector pin of the utility model abuts against the slider;

[0020] Figure 6 This is a schematic diagram of the structure of the utility model when the second ejector pin is inserted into the slider;

[0021] Markings in the figure: 1. lower mold; 2. upper mold; 3. base; 4. push cylinder; 5. cavity; 6. slider; 7. insert pin; 8. inclined guide column; 9. inclined pin hole; 10. first ejector pin; 11. second ejector pin; 12. through hole; 13. sliding hole; 14. groove. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the implementation mode of the utility model clearer, the technical scheme in the implementation mode of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation mode of the utility model. Obviously, the described implementation mode is a part of the implementation mode of the utility model, not all of the implementation modes. Based on the implementation mode in the utility model, all other implementation modes obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the implementation mode of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected implementation mode of the utility model. Based on the implementation mode in the utility model, all other implementation modes obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] Depend on Figures 1 to 6 As shown, an embodiment of the utility model provides a mold core-pulling anti-collision structure, including a lower mold 1, an upper mold 2 and a base 3, the lower mold 1 is arranged above the base 3, and a pushing cylinder 4 for controlling the up and down movement of the lower mold 1 is arranged on the base 3; a cavity 5 is arranged between the lower mold 1 and the upper mold 2; a slider 6 is slidably arranged on the upper end of the lower mold 1, and the slider 6 and the lower mold 1 are guided by a slide rail, which will not be described in detail; an insert pin 7 is arranged at one end of the slider 6 close to the cavity 5, and the insert pin 7 is used to extend into the cavity 5 as a moving mold for product molding. After the product is molded, it exits the cavity 5 to allow the finished product to be demolded from the bottom to the top and leave the cavity 5.

[0024] It also includes a driving mechanism, which is used to control the slider 6 to approach or move away from the cavity 5 to achieve a core pulling operation. Preferably, in this embodiment, the driving mechanism includes an inclined guide column 8 fixed to the bottom of the upper mold 2 and an inclined pin hole 9 provided on the slider 6. The inclined pin hole 9 is suitable for inserting the inclined guide column 8. When the push cylinder 4 outputs to control the separation of the lower mold 1 and the upper mold 2, the inclined guide column 8 is inserted into or leaves the inclined pin hole 9, which can drive the slider 6 to approach or move away from the cavity 5, thereby allowing the insert pin 7 to extend into or leave the cavity 5.

[0025] Furthermore, it also includes a first ejector pin 10 and a second ejector pin 11 fixed on the base 3. The first ejector pin 10 can be inserted into the mold cavity 5 to eject the finished product; the second ejector pin 11 is located below the slider 6, and the slider 6 is vertically provided with a through hole 12 suitable for inserting the second ejector pin 11. When the second ejector pin 11 can be inserted into the through hole 12, the insert pin 7 withdraws from the mold cavity 5. The second ejector pin 11 is located in a vertically arranged sliding hole 13 in the lower mold 1, the upper end of the sliding hole 13 is open, and the port is located on the path of the bottom end of the through hole 12 when the slider 6 moves. In this way, when the inclined guide column 8 is damaged, the slider 6 is not driven, and the insert pin 7 is located in the cavity 5, but the push cylinder 4 on the base 3 still drives the lower mold 1 to rise. When the second ejector pin 11 rises, it will not be aligned with the through hole 12, and will be against the bottom end of the slider 6 in advance, so that the first ejector pin 10 can be prevented from extending into the cavity 5 and contacting the insert pin 7 or the finished product, and damage to the insert pin 7 can be avoided. Only when the insert pin 7 is completely separated from the cavity 5, according to the setting, the through hole 12 is located just above the second ejector pin 11, so that the second ejector pin 11 extends into the through hole 12, and the first ejector pin 10 extends into the cavity 5, and the finished product is ejected from the cavity 5 to complete the demoulding. It should be noted that in this embodiment, another slider and insert pin are also provided on the other side of the cavity 5, and the technical structure is the same, so no further description is made.

[0026] Preferably, the oblique pin hole 9 is set through the slider 6, and the upper end of the upper mold 2 is provided with a groove 14, which is located below the oblique pin hole 9. The groove 14 allows the oblique guide column 8 to pass through the slider 6 better and more, ensuring that it abuts against the outer wall of the cavity 5, so that the insert pin 7 is placed in the correct position in the cavity 5.

[0027] Preferably, there are two oblique pin holes 9 on the slider 6. By providing two oblique pin holes 9, two oblique guide pillars 8 are also correspondingly provided above the slider 6, so that the slider 6 can be stably moved in parallel and stably.

[0028] Preferably, a plurality of insert pins 7 are provided on the slider 6. In this embodiment, a plurality of products can be molded in the mold cavity 5, and therefore a corresponding number of insert pins 7 are required, so that a plurality of products can be efficiently produced each time the mold is formed.

[0029] Preferably, at least four first ejector pins 10 are provided. By providing at least four first ejector pins 10, they can be distributed at four azimuths of the product, so that the product can be ejected and demoulded in parallel and stably.

[0030] Preferably, the end of the second ejector pin 11 is arranged in an arc shape, so that when there is a slight deviation between the second ejector pin 11 and the through hole 12, the edge of the head end of the second ejector pin 11 will not be broken due to contact.

[0031] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A mold core-pulling anti-collision structure, characterized in that: The mold comprises a lower mold, an upper mold and a base, wherein the lower mold is arranged above the base, and a push cylinder for controlling the upper and lower movements of the lower mold is arranged on the base; a cavity is arranged between the lower mold and the upper mold; a slider is slidably arranged on the upper end of the lower mold, and an insert pin is arranged on the end of the slider close to the cavity; a driving mechanism is also included, and the driving mechanism is used to control the slider to approach or move away from the cavity; a first ejector pin and a second ejector pin are fixedly arranged on the base, and the first ejector pin can be extended into the cavity to eject the finished product; the second ejector pin is located below the slider, and a through hole suitable for the insertion of the second ejector pin is vertically arranged on the slider, and when the second ejector pin can be inserted into the through hole, the insert pin withdraws from the cavity.

2. A mold core-pulling anti-collision structure according to claim 1, characterized in that The driving mechanism includes an inclined guide column fixedly arranged at the bottom of the upper mold and an inclined pin hole arranged on the sliding block, and the inclined pin hole is suitable for inserting the inclined guide column.

3. A mold core-pulling anti-collision structure according to claim 2, characterized in that The inclined pin hole passes through the slider, and a groove is provided at the upper end of the upper mold, and the groove is located below the inclined pin hole.

4. A mold core-pulling anti-collision structure according to claim 2, characterized in that , there are two oblique pin holes on the slider.

5. The mold core-pulling anti-collision structure according to claim 1 is characterized in that , a plurality of inlay pins are arranged on the slider.

6. The mold core-pulling anti-collision structure according to claim 1 is characterized in that , there are at least four first ejector pins.

7. A mold core-pulling anti-collision structure according to claim 1, characterized in that , the end of the second ejector pin is arranged in an arc shape.

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