Oil cylinder core pulling device

Abstract

The utility model discloses an oil cylinder core-pulling device. The oil cylinder core-pulling device comprises a front mold, an oil cylinder and a first core-pulling assembly, wherein the front mold is provided with a first shovel base sliding groove and a first slide sliding groove, and the oil cylinder is provided with an oil cylinder pull rod capable of stretching out and drawing back in a reciprocating mode along the first shovel base sliding groove; the first core pulling assembly comprises a first shovel base and a first slide, the first slide is embedded in the first slide sliding groove, and a first inclined tip through groove is formed in the first slide; the first shovel base comprises a first inclined pin, the first inclined pin is embedded in the first shovel base sliding groove, one end of the first inclined pin is connected with the oil cylinder pull rod, and the other end of the first inclined pin is embedded in the first inclined pin through groove and stretches into or retracts back along the first inclined pin through groove. According to the core pulling device, the oil cylinder is used for providing core pulling power, mold opening and core pulling are achieved through cooperation of the first core pulling assembly, the device is simple in structure and reliable in movement, the device can adapt to existing molds of various types such as a three-plate mold, a two-plate mold and a two-plate half mold, and the production efficiency is improved. And other mold external auxiliary equipment is prevented from being added for controlling the mold opening and closing sequence.

Description

Technical Field

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

[0002] In mold forming equipment, the slide core-pulling mechanism typically consists of a shovel base and a slide. The shovel base is connected to the slide, and when the mold opens, the shovel base moves, driving the slide to complete the core-pulling motion. This slide core-pulling mechanism is only suitable for molds with a slatted structure on the front mold side, such as three-plate molds and two-and-a-half-plate molds. Molds without a moving mechanism on the front mold side, such as two-plate molds, cannot use the above-mentioned slide core-pulling mechanism. Utility Model Content

[0003] Therefore, it is necessary to provide a hydraulic cylinder core-pulling device that can complete the core-pulling of the slide without the need for other power devices in the mold.

[0004] The technical solution of this utility model is as follows:

[0005] A hydraulic cylinder core-pulling device, comprising:

[0006] Front mold: The front mold has a first shovel base groove and a first sliding groove. The first shovel base groove is opened in a direction parallel to the mold closing plane, and the first sliding groove is opened in a direction perpendicular to the mold closing plane. The first sliding groove is connected to the first shovel base groove.

[0007] Hydraulic cylinder: disposed on the front mold, having a hydraulic cylinder rod capable of reciprocating along the first shovel base slide groove;

[0008] And, the first core-pulling assembly: the first core-pulling assembly includes a first shovel base and a first sliding position, the first sliding position is embedded in the first sliding position groove, and the first sliding position has a first inclined pin through groove; the first shovel base includes a first inclined pin, the first inclined pin is embedded in the first shovel base groove, one end of the first inclined pin is connected to the hydraulic cylinder rod, and the other end is embedded in the first inclined pin through groove and extends or retracts along the first inclined pin through groove.

[0009] Optionally, the first shovel base further includes a first shovel base base, which is disposed between the hydraulic cylinder rod and the first inclined pin. The first shovel base base is connected to the hydraulic cylinder rod, and the first shovel base base and the first inclined pin are integrally formed.

[0010] Optionally, a first shovel base T-slot is formed on the first shovel base base, and the top end of the hydraulic cylinder rod is embedded in the first shovel base T-slot.

[0011] Optionally, the first core-pulling assembly further includes a backhoe, which is disposed on the side of the first inclined pin through groove opposite to the first inclined pin to prevent the first inclined pin from extending beyond its position, and the backhoe is fixedly connected to the front mold.

[0012] Optionally, the front mold may also have a second shovel base groove; the central axis of the second shovel base groove coincides with or is parallel to the central axis of the first sliding groove.

[0013] Optionally, the front mold is further provided with a second sliding groove; the second sliding groove is provided in a direction parallel to the mold closing plane, and the second sliding groove is connected to the second shovel base groove.

[0014] Optionally, it further includes a second core-pulling assembly, the second core-pulling assembly including a second shovel base, the second shovel base being embedded in a second shovel base groove, and the second shovel base being able to reciprocate along the second shovel base groove; the second shovel base being fixedly connected to the first row position.

[0015] Optionally, the second shovel base includes a second shovel base base and a second inclined pin. The second shovel base base is fixedly connected to the first row position, and the second inclined pin is disposed on the side of the second shovel base base away from the first row position, and the second inclined pin is integrally formed with the second shovel base base.

[0016] Optionally, the second core-pulling assembly further includes a second row position, which is embedded in the second row position groove and is capable of reciprocating along the second row position groove.

[0017] Optionally, a second oblique pin through groove is formed on the second row position, and the second oblique pin is embedded in the second oblique pin through groove and extends or retracts along the second oblique pin through groove.

[0018] Advantages of this utility model: The core-pulling device provided in this application uses a hydraulic cylinder to provide core-pulling power. The core-pulling is achieved through the cooperation of the first core-pulling component and the second core-pulling component. The device has a simple structure and reliable movement. It can also adapt to various types of molds such as three-plate molds, two-plate molds, and two-and-a-half-plate molds, avoiding the need to add other external auxiliary equipment for molds in order to control the opening and closing sequence. Attached Figure Description

[0019] 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 the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a partial structural diagram of the hydraulic cylinder core-pulling device provided in a specific embodiment.

[0021] Figure 2 The schematic diagram of the mold closing state of the hydraulic cylinder core-pulling device provided in the specific embodiment is shown in the figure.

[0022] Figure 3 The schematic diagram of the mold opening state of the hydraulic cylinder core-pulling device provided in the specific embodiment is shown in the figure.

[0023] Component names and serial numbers in the diagram: Front mold: 1, Rear mold: B, Product: P, Hydraulic cylinder: 2, First core-pulling assembly: 3, Second core-pulling assembly: 4, Hydraulic cylinder tie rod: 21, First shovel base slide groove: 11, First shovel base: 31, First sliding slide groove: 12, First sliding position: 32, First shovel base base: 311, First shovel base T-slot: 3111, First inclined pin: 312, First inclined pin through groove: 321, Backhoe: 33, Second shovel base slide groove: 13, Second shovel base: 41, Second shovel base base: 411, Second inclined pin: 412, Second sliding slide groove: 14, Second sliding position: 42, Second inclined pin through groove: 421.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] 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 protection scope of the present utility model.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] refer to Figure 1-3 .

[0029] This specific embodiment provides a hydraulic cylinder core-pulling device, including a front mold 1, a hydraulic cylinder 2, a first core-pulling assembly 3, and a second core-pulling assembly 4.

[0030] The device comprises: a hydraulic cylinder 2 located in the front mold 1, having a hydraulic cylinder rod 21 capable of lateral extension and retraction; a first core-pulling assembly 3 connected to the hydraulic cylinder 2, capable of converting the lateral extension and retraction motion of the hydraulic cylinder rod 21 into longitudinal reciprocating motion; and a second core-pulling assembly 4 connected to the first core-pulling assembly 3, capable of converting the longitudinal reciprocating motion of the first core-pulling assembly 3 into lateral reciprocating motion to achieve core pulling of the injection-molded product. In this specific embodiment, the core-pulling device is applied in a two-plate mold, which includes a front mold 1 and a rear mold B. When the mold is closed, the front mold 1 and the rear mold B are closed and fitted together. The hydraulic cylinder 2 provides power; when the hydraulic cylinder rod 21 extends or retracts, the first core-pulling assembly 3 is driven longitudinally by the hydraulic cylinder rod 21, and the second core-pulling assembly 4 moves laterally accordingly. Therefore, by controlling the driving force output of the hydraulic cylinder 2 according to the mold opening and closing states during the mold processing, the movement state or stopping position of the second core-pulling assembly 4 can be controlled accordingly, thereby achieving the release of the injection-molded product when the mold is closed or the product is opened.

[0031] In this specific embodiment, the front mold 1 has a first shovel base groove 11, which is opened in a direction parallel to the mold closing plane. The cylinder body of the hydraulic cylinder 2 is fixedly connected to the front mold 1, and the hydraulic cylinder rod 21 can reciprocate in the first shovel base groove 11. The first core-pulling assembly 3 includes a first shovel base 31, which is embedded in the first shovel base groove 11 and can move within the first shovel base groove 11; the first shovel base 31 is connected to the hydraulic cylinder connecting rod 21. The front mold 1 has a first sliding groove 12, which is opened in a direction perpendicular to the mold closing plane and is connected to the first shovel base groove 11; the first core-pulling assembly 3 also includes a first sliding member 32, which is embedded in the first sliding groove 12 and can move within the first sliding groove 12. The first shovel base 31 includes a first shovel base 311 and a first inclined pin 312. The first shovel base 311 has a first shovel base T-slot 3111. The top of the hydraulic cylinder rod 21 is T-shaped and fits into the first shovel base T-slot 3111. The first inclined pin 312 is located on the side of the first shovel base 311 away from the hydraulic cylinder rod 21, and the first inclined pin 312 is integrally formed with the first shovel base 311. The first sliding position 32 has a first inclined pin through groove 321. The first inclined pin 312 is embedded in the first inclined pin through groove 321 and extends or retracts along the first inclined pin through groove 321. The cylinder body of the hydraulic cylinder 2 is placed horizontally on the front mold 1. The hydraulic cylinder rod 21 extends and retracts horizontally. The first shovel base groove 11 is opened horizontally. The first shovel base 31, which is embedded in the first shovel base groove 11, slides or stays in the first shovel base groove 11 under the drive of the hydraulic cylinder rod 21. The central axis of the first inclined pin 312 has an angle with the horizontal plane and is in an upward inclined state. The first inclined pin through groove 321 cooperates with the first inclined pin 312 and is also in an inclined state. When the hydraulic cylinder rod 21 extends and retracts, it drives the first shovel base 31 to move in the first shovel base groove 11. The first inclined pin 312 then extends into the first inclined pin through groove 321. The first inclined pin 312 presses against the side wall of the first inclined pin through groove 321, causing the first sliding position 32 to slide in the first sliding position groove 12. This converts the lateral extension and retraction motion of the hydraulic cylinder rod 21 into the longitudinal reciprocating motion of the first sliding position 32.

[0032] In this specific embodiment, the first core-pulling assembly 3 further includes a backhoe 33. The backhoe 33 is disposed on the side of the first inclined pin groove 321 away from the first inclined pin 312 to prevent the first inclined pin 312 from extending beyond its designated position. The backhoe 33 is fixedly connected to the front mold 1. The first inclined pin groove 321 is a through channel. During the movement of the first inclined pin 312, there is a possibility that it may penetrate through the entire first inclined pin groove 321. Therefore, in this specific embodiment, a backhoe 33 is provided and fixed to one end of the first inclined pin groove 321. When the first inclined pin 312 extends into the first inclined pin groove 321, the first inclined pin 312 can freely move back and forth or stay inside the groove of the first inclined pin groove 321. Once the first inclined pin 312 extends too far, the top of the first inclined pin 312 will contact the backhoe 33, and the backhoe 33 will block the first inclined pin 312 from continuing to extend, limiting the first inclined pin 312 from continuing to move to avoid it extending beyond its designated position.

[0033] In this specific embodiment, the front mold 1 also has a second shovel base groove 13. The central axis of the second shovel base groove 13 is parallel to the central axis of the first sliding groove 12. The second core-pulling assembly 4 includes a second shovel base 41, which is embedded in the second shovel base groove 13 and can reciprocate along the second shovel base groove 13. The second shovel base 41 is fixedly connected to the first sliding groove 32. The second shovel base 41 includes a second shovel base base 411 and a second inclined pin 412. The second shovel base base 411 is fixedly connected to the first sliding groove 32, and the second inclined pin 412 is disposed on the side of the second shovel base base 411 opposite to the first sliding groove 32. The second inclined pin 412 and the second shovel base base 411 are integrally formed. The front mold 1 also has a second sliding groove 14, which is opened in a direction parallel to the mold closing plane and is connected to the second shovel base groove 13. The second core-pulling assembly 4 also includes a second slide 42, which is embedded in the second sliding groove 14 and can slide back and forth along the second sliding groove 14. A second inclined pin through groove 421 is opened on the second slide 42, and the second inclined pin 412 is embedded in the second inclined pin through groove 421 and extends or retracts along the second inclined pin through groove 421. After the first core-pulling assembly 3 converts the lateral extension and retraction motion of the hydraulic cylinder rod 21 into the longitudinal reciprocating motion of the first slide 32, since the second shovel base 41 is connected to the first slide 32, the second shovel base 41 also reciprocates in the vertical direction with the first slide 32. Since the second shovel base 41 is provided with a second inclined pin 412, the cooperation between the second inclined pin 312 and the first inclined pin through groove 321 is similar. The second inclined pin 412, through its cooperation with the second inclined pin through groove 421, converts the reciprocating motion of the second shovel base 41 in the vertical direction into the reciprocating motion of the second slide 42 in the horizontal direction, thereby realizing the lateral release of the injection molded product P and facilitating the demolding and ejection of the product P.

[0034] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A cylinder core-pulling device, characterized in that, include: Front mold: The front mold has a first shovel base groove and a first sliding groove. The first shovel base groove is opened in a direction parallel to the mold closing plane, and the first sliding groove is opened in a direction perpendicular to the mold closing plane. The first sliding groove is connected to the first shovel base groove. Hydraulic cylinder: disposed on the front mold, having a hydraulic cylinder rod capable of reciprocating along the first shovel base slide groove; And, the first core-pulling assembly: the first core-pulling assembly includes a first shovel base and a first sliding position, the first sliding position is embedded in the first sliding position groove, and the first sliding position has a first inclined pin through groove; the first shovel base includes a first inclined pin, the first inclined pin is embedded in the first shovel base groove, one end of the first inclined pin is connected to the hydraulic cylinder rod, and the other end is embedded in the first inclined pin through groove and extends or retracts along the first inclined pin through groove.

2. The cylinder core-pulling device as described in claim 1, characterized in that, The first shovel base also includes a first shovel base base, which is disposed between the hydraulic cylinder rod and the first inclined pin. The first shovel base base is connected to the hydraulic cylinder rod, and the first shovel base base and the first inclined pin are integrally formed.

3. The cylinder core-pulling device as described in claim 2, characterized in that, A first shovel base T-slot is formed on the first shovel base base, and the top end of the hydraulic cylinder rod is embedded in the first shovel base T-slot.

4. The cylinder core-pulling device as described in claim 1, characterized in that, The first core-pulling assembly also includes a back spade, which is disposed on the side of the first inclined pin through groove away from the first inclined pin to prevent the first inclined pin from extending beyond its position. The back spade is fixedly connected to the front mold.

5. The cylinder core-pulling device as described in claim 4, characterized in that, The front mold also has a second shovel base groove; the central axis of the second shovel base groove coincides with or is parallel to the central axis of the first sliding groove.

6. The cylinder core-pulling device as described in claim 5, characterized in that, The front mold is further provided with a second sliding groove, which is provided in a direction parallel to the mold closing plane, and the second sliding groove is connected to the second shovel base groove.

7. The cylinder core-pulling device as described in claim 6, characterized in that, It also includes a second core-pulling assembly, which includes a second shovel base. The second shovel base is embedded in a second shovel base groove and can reciprocate along the second shovel base groove; the second shovel base is fixedly connected to the first row position.

8. The cylinder core-pulling device as described in claim 7, characterized in that, The second shovel base includes a second shovel base base and a second inclined pin. The second shovel base base is fixedly connected to the first row position. The second inclined pin is disposed on the side of the second shovel base base away from the first row position, and the second inclined pin is integrally formed with the second shovel base base.

9. The cylinder core-pulling device as described in claim 8, characterized in that, The second core-pulling assembly further includes a second row position, which is embedded in the second row position groove and can slide back and forth along the second row position groove.

10. The cylinder core-pulling device as described in claim 9, characterized in that, A second oblique pin through groove is opened on the second row position, and the second oblique pin is embedded in the second oblique pin through groove and extends or retracts along the second oblique pin through groove.

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