Insert pin type ejection mechanism

Abstract

The utility model discloses an insert pin type ejection mechanism which comprises a fixed bottom plate, a first ejection plate, a second ejection plate and a third ejection plate are sequentially stacked at the upper end of the fixed bottom plate from top to bottom, a plurality of uniformly distributed insert pins are arranged on the third ejection plate, an ejection rod matched with the insert pins for use is arranged on the first ejection plate, and an ejector pin is arranged on the second ejection plate. And the second ejector plate is provided with an ejector rod for respectively driving the insert pin and the ejector rod. The ejection mechanism solves the problem that in the prior art, a traditional ejection mechanism is prone to strain products due to the fact that a single-time demolding mode is adopted. The mold has the advantages of being simple in structure, easy to manufacture, convenient to use, not prone to damage a product when the product with large wrapping force is demolded, and the like.

Description

Technical Field

[0001] The utility model relates to the field of mold production equipment, and more specifically to a pin-embedded ejection mechanism. Background Art

[0002] At present, a kind of injection mold buckle machine structure is disclosed on the Chinese patent website, with the publication number CN219405284U, including a rear template, an upper ejector plate and a lower ejector plate, a sliding groove is provided on the side of the upper ejector plate, a buckle machine movable block is slidably connected in the sliding groove, a spring is provided between the buckle machine movable block and the bottom of the sliding groove, a buckle machine buckle is provided on the rear template, a buckle machine lever corresponding to the buckle machine movable block is provided on the lower ejector plate, a hook for hooking the buckle machine movable block is provided on the buckle machine lever, a first push inclined surface is provided on the side of the buckle machine movable block close to the buckle machine buckle, a second push inclined surface is provided on the side of the buckle machine movable block close to the buckle machine lever, a third push inclined surface matched with the first push inclined surface is provided on the end of the buckle machine buckle close to the buckle machine movable block, and a fourth push inclined surface matched with the second push inclined surface is provided on the end of the buckle machine lever close to the buckle machine movable block. The utility model has a simple and reliable structure, low manufacturing cost, avoids the problem that small square pins in traditional mold buckles are easy to break, and improves service life.

[0003] The injection mold buckle structure in the above patent has the advantages of low manufacturing cost and long service life. However, when the mold is demolding a product with a large clamping force, its ejector rod is prone to tearing the product because it adopts the traditional single-shot demolding method. Utility Model Content

[0004] In order to overcome the problem that the conventional ejection mechanism in the prior art adopts a single demoulding mode and is prone to damage the product, the utility model provides a pin-embedded ejection mechanism with a secondary demoulding function.

[0005] The utility model discloses a pin-embedded ejection mechanism, comprising a fixed bottom plate, a first top plate, a second top plate and a third top plate stacked in sequence from top to bottom on the upper end of the fixed bottom plate, a plurality of evenly distributed pins are arranged on the third top plate, a ejector rod used in conjunction with the pins is arranged on the first top plate, and an ejector rod used to drive the pins and the ejector rod respectively is arranged on the second top plate.

[0006] Preferably, the inlay pin is installed on the upper end surface of the third top plate and the upper part of the inlay pin passes through the first top plate and the second top plate in sequence, the top of the push rod is installed on the lower end of the second top plate and the lower part of the push rod is installed on the fixed bottom plate, and the push rod is installed on the upper end surface of the first top plate.

[0007] Preferably, two mounting plates arranged in a "V" shape are provided at the bottom of the third top plate, and the mounting plates are embedded in the lower end surface of the third top plate.

[0008] Preferably, two rows of parallel-arranged mounting seats are respectively embedded on each mounting plate, and the bottom of the inlay pin is plugged into the upper end of the mounting seat.

[0009] Preferably, the side of the fixed bottom plate is provided with a buckle mechanism for use with the top rod. The buckle mechanism includes an elastic accessory, a clamping accessory and a fixing accessory, the elastic accessories are respectively installed at the left and right ends of the third top plate, the fixing accessories are respectively installed at the left and right ends of the fixed bottom plate, and the clamping accessories are connected to the fixing accessories in a sliding limit position.

[0010] Preferably, the fixing accessory is in an "L" shape, the bottom of the fixing accessory is fixedly connected to the lower end of the fixing base plate, the clamping accessory is in a "7" shape, and the top of the vertical part of the fixing accessory is provided with an oblique clamping block used in conjunction with the elastic accessory.

[0011] Preferably, a slide rail is provided at the left end of the vertical part of the clamping accessory, the vertical part of the fixed accessory is slidably connected to the slide rail, the upper end of the clamping accessory is fixedly connected to the first top plate, and the lower end of the vertical part of the clamping accessory is provided with a hook block used in conjunction with the oblique clamping block.

[0012] Preferably, the elastic accessory includes a clamping block and a sliding block, the clamping block and the sliding block are stacked up and down and fixedly connected, the left and right ends of the third top plate are respectively provided with pop-up grooves, the bottom of the pop-up groove and the clamping block are elastically reset by a spring, and the pop-up groove is slidably connected to the sliding block.

[0013] Preferably, a plurality of evenly distributed screw grooves are provided at the bottom of the fixed base plate, and a driving screw is slidably connected in the screw groove, and the upper part of the driving screw passes through the fixed base plate and is fixedly connected to the lower end of the third top plate.

[0014] During demoulding, the push rod is driven to move upward, and the push rod drives the second push plate to move upward, and the second push plate drives the first push plate to move upward. Since the upper part of the clamping accessory is fixedly connected to the first push plate, the hook block of the fixed accessory is abutted against the lower right end of the clamping block, and the right end face of the clamping block is fitted with the vertical part of the fixed accessory. At this time, the right end face of the clamping block has not reached the inclined clamping block. At this time, the hook block of the fixed accessory just provides lift for the third push plate. Under the joint action of the fixed accessory, the clamping accessory and the elastic accessory, the first push plate, the second push plate and the third push plate are clamped together, and moved upward together under the drive of the push rod, forming the first demoulding.

[0015] When the three top plates are ejected upward to 9mm together, the lower part of the driving screw is against the bottom of the screw slide groove, and the third top plate stops moving up. In this process, the ejector rod drives the second top plate and the first top plate, and the upper part of the clamping accessory is fixedly connected to the first top plate, and the right end face of the clamping block reaches the oblique clamping block. At this time, the clamping block is pushed inward into the pop-up groove by the oblique clamping block. At this time, the hook block is separated from the clamping block and can no longer provide lift for the third top plate. At this time, the first top plate and the second top plate continue to be ejected under the drive of the ejector rod, forming a second demoulding, thereby realizing the product ejection for two times.

[0016] The utility model has the following beneficial effects: simple structure, easy manufacture, convenient use, and not easy to damage the product when demoulding the product with large wrapping force. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attached Figure 1 It is a structural schematic diagram of the utility model.

[0018] Attached Figure 2 It is a schematic diagram of the structure of the utility model without installing the inlay pin.

[0019] Attached Figure 3 It is a structural schematic diagram of the third top plate of the utility model.

[0020] Attached Figure 4 It is a structural schematic diagram of the mounting seat of the utility model.

[0021] Attached Figure 5 It is a structural schematic diagram of the oblique clamping block and the clamping block of the utility model when they abut against each other.

[0022] Attached Figure 6 It is a structural schematic diagram of the utility model when the oblique clamping block and the clamping block are separated.

[0023] Attached Figure 7 It is a structural schematic diagram of the elastic accessory of the utility model.

[0024] Fixed bottom plate 1, first top plate 5, second top plate 6, third top plate 7, inlay pin 8, top stick 9, top rod 10, mounting plate 11, mounting seat 12, elastic accessory 13, clamping accessory 14, fixed accessory 15, oblique clamping block 16, slide rail 17, hook block 18, clamping block 19, sliding block 20, spring 22, plug screw 23. DETAILED DESCRIPTION

[0025] The technical solution of the utility model is further specifically described through embodiments and in combination with the accompanying drawings.

[0026] Embodiment: According to the attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 6 and attached Figure 7 To further illustrate the utility model, a pin-type ejection mechanism in this example comprises a fixed base plate 1, on the upper end of the fixed base plate 1 are stacked a first top plate 5, a second top plate 6 and a third top plate 7 in sequence from top to bottom, the third top plate 7 is provided with a plurality of evenly distributed pins 8, the first top plate 5 is provided with a push rod 10 used in conjunction with the pins 8, and the second top plate 6 is provided with a push rod 9 for driving the pins 8 and the push rod 10 respectively.

[0027] The inlay needle 8 is installed on the upper end surface of the third top plate 7 and the upper part of the inlay needle 8 passes through the first top plate 5 and the second top plate 6 in sequence. The top of the push rod 9 is installed on the lower end of the second top plate 6 and the lower part of the push rod 9 is installed on the fixed bottom plate 1. The push rod 10 is installed on the upper end surface of the first top plate 5.

[0028] Two mounting plates 11 arranged in a “V” shape are disposed at the bottom of the third top plate 7 , and the mounting plates 11 are embedded in the lower end surface of the third top plate 7 .

[0029] Two rows of parallel mounting seats 12 are respectively embedded on each mounting plate 11 , and the bottom of the inlay pin 8 is plugged into the upper end of the mounting seat 12 .

[0030] The side of the fixed bottom plate 1 is provided with a buckle mechanism 3 for use with the top stick 9. The buckle mechanism 3 includes an elastic accessory 13, a clamping accessory 14 and a fixing accessory 15, the elastic accessories 13 are respectively installed at the left and right ends of the third top plate 7, the fixing accessories 15 are respectively installed at the left and right ends of the fixed bottom plate 1, and the clamping accessories 14 are connected with the fixing accessories 15 in a sliding limit position.

[0031] The fixing accessory 15 is in an "L" shape, the bottom of the fixing accessory 15 is fixedly connected to the lower end of the fixing base plate 1, the clamping accessory 14 is in a "7" shape, and the top of the vertical part of the fixing accessory 15 is provided with an oblique clamping block 16 used in conjunction with the elastic accessory 13.

[0032] A slide rail 17 is provided at the left end of the vertical portion of the clamping accessory 14, the vertical portion of the fixing accessory 15 is slidably connected to the slide rail 17, the upper end of the clamping accessory 14 is fixedly connected to the first top plate 5, and a hook block 18 is provided at the lower end of the vertical portion of the clamping accessory 14 for use with the oblique clamping block 16.

[0033] The elastic accessory 13 includes a clamping block 19 and a sliding block 20, the clamping block 19 and the sliding block 20 are stacked up and down and fixedly connected, the left and right ends of the third top plate 7 are respectively provided with pop-up grooves, the bottom of the pop-up groove is elastically reset connected to the clamping block 19 by setting a spring 22, and the pop-up groove is slidably connected to the sliding block 20.

[0034] A plurality of evenly distributed screw grooves are provided at the bottom of the fixed base plate 1 , and a driving screw 23 is slidably connected in the screw groove. The upper portion of the driving screw 23 passes through the fixed base plate 1 and is fixedly connected to the lower end of the third top plate 7 .

[0035] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A pin-embedded ejection mechanism, comprising a fixed bottom plate (1), wherein a first top plate (5), a second top plate (6) and a third top plate (7) are stacked in sequence from top to bottom on the upper end of the fixed bottom plate (1), wherein: The third top plate (7) is provided with a plurality of evenly distributed inlay pins (8), the first top plate (5) is provided with a push rod (10) used in conjunction with the inlay pins (8), and the second top plate (6) is provided with a push rod (9) for driving the inlay pins (8) and the push rod (10) respectively.

2. A pin-type ejection mechanism according to claim 1, characterized in that: The inlay needle (8) is mounted on the upper end surface of the third top plate (7) and the upper part of the inlay needle (8) passes through the first top plate (5) and the second top plate (6) in sequence; the top of the push rod (9) is mounted on the lower end of the second top plate (6) and the lower part of the push rod (9) is mounted on the fixed bottom plate (1); and the push rod (10) is mounted on the upper end surface of the first top plate (5).

3. A pin-type ejection mechanism according to claim 1, characterized in that: Two mounting plates (11) arranged in a V-shape are provided at the bottom of the third top plate (7), and the mounting plates (11) are embedded in the lower end surface of the third top plate (7).

4. A pin-embedded ejection mechanism according to claim 3, characterized in that: Two rows of parallelly arranged mounting seats (12) are respectively embedded on each mounting plate (11), and the bottom of the inlay pin (8) is plugged into the upper end of the mounting seat (12).

5. The pin-embedded ejection mechanism according to claim 2, characterized in that: The side edge of the fixed bottom plate (1) is provided with a buckle mechanism (3) for use with the top rod (9).

6. A pin-embedded ejection mechanism according to claim 5, characterized in that: The buckle mechanism (3) comprises an elastic accessory (13), a clamping accessory (14) and a fixing accessory (15); the elastic accessory (13) is respectively mounted on the left and right ends of the third top plate (7); the fixing accessory (15) is respectively mounted on the left and right ends of the fixed bottom plate (1); and the clamping accessory (14) is slidably limitedly connected to the fixing accessory (15).

7. A pin-embedded ejection mechanism according to claim 6, characterized in that: The fixing accessory (15) is in an "L" shape, the bottom of the fixing accessory (15) is fixedly connected to the lower end of the fixing base plate (1), the clamping accessory (14) is in a "7" shape, and the top of the vertical portion of the fixing accessory (15) is provided with an oblique clamping block (16) for use with the elastic accessory (13).

8. The pin-embedded ejection mechanism according to claim 7, characterized in that: A slide rail (17) is provided at the left end of the vertical portion of the clamping accessory (14), the vertical portion of the fixing accessory (15) is slidably connected to the slide rail (17), the upper end of the clamping accessory (14) is fixedly connected to the first top plate (5), and the lower end of the vertical portion of the clamping accessory (14) is provided with a hook block (18) for use with the oblique clamping block (16).

9. A pin-embedded ejection mechanism according to claim 8, characterized in that: The elastic accessory (13) comprises a clamping block (19) and a sliding block (20), wherein the clamping block (19) and the sliding block (20) are stacked up and down and fixedly connected, and ejection grooves are respectively provided at the left and right ends of the third top plate (7), and the bottom of the ejection groove and the clamping block (19) are elastically reset and connected by a spring (22), and the ejection groove is slidably connected to the sliding block (20).

10. The pin-embedded ejection mechanism according to claim 1, characterized in that: The bottom of the fixed bottom plate (1) is provided with a plurality of evenly distributed screw grooves, in which the driving screws (23) are slidably connected, and the upper portion of the driving screws (23) passes through the fixed bottom plate (1) and is fixedly connected to the lower end of the third top plate (7).

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