Foam inner hole waste discharge mechanism

Abstract

The utility model discloses a foam inner hole waste discharge mechanism which comprises a lower die base, a waste discharge groove is formed in the lower die base, a waste discharge hole is formed in the groove bottom of the waste discharge groove, the width of the waste discharge hole is smaller than that of external waste, and a flexible layer is arranged on the hole wall of the waste discharge hole. The flexible layer is arranged in the waste discharge hole, the width of the waste discharge hole is smaller than that of waste, when the waste is jacked into the waste discharge hole, the friction force between the flexible layer and the waste can limit rebound of the foam waste, prevent the foam waste from protruding out of the surface of the lower die base and avoid affecting advancing of a material belt, the overall structure is simple and compact, the waste discharge process flow does not rebound, and the production efficiency is improved. And the problem of unsmooth waste discharge in the past is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould technical field especially relates to a foam inner hole waste discharge mechanism. BACKGROUND

[0002] For the foam that needs to set up inner hole, it generally forms the inner hole in the foam through the die punching mode. The die generally designs the corresponding cutter according to the shape of the inner hole, and the waste in the foam inner hole needs to be discharged after the cutter punching, and the process of discharging the waste is generally called waste discharge.

[0003] At present, there are two common ways for foam inner hole waste discharge, one of which is manual waste discharge, and the worker manually takes out the waste in the inner hole, and the worker's labor intensity is large, and the work efficiency is low. The other is die punching and waste discharge. This kind of die generally includes an upper die and a lower die, the lower die is provided with a waste discharge groove, the groove bottom of the waste discharge groove is provided with a waste discharge hole, the upper die is provided with a ring-shaped cutter, the ring-shaped cutter is located above the waste discharge hole, and the upper die is also provided with an ejection mechanism, and the ejection mechanism includes a top rod located on the inner side of the cutter and reciprocating in the height direction. This waste discharge structure generally has two steps, the first step is to punch by the tool, and the second step is to discharge the waste by the top rod of the ejection mechanism after punching, but since the foam has elasticity, the waste is easily popped up after being pushed into the waste discharge hole during the ejection process, so that the material belt cannot normally travel, and there is the problem of unsmooth waste discharge. SUMMARY

[0004] The technical problem to be solved by the utility model lies in providing a foam inner hole waste discharge mechanism, which can solve the problem of unsmooth waste discharge.

[0005] In order to solve the above technical problems, the utility model discloses a foam inner hole waste discharge mechanism, which comprises a lower die seat, the lower die seat is provided with a waste discharge groove, the groove bottom of the waste discharge groove is provided with a waste discharge hole, the width of the waste discharge hole is smaller than that of the external waste, and the hole wall of the waste discharge hole is provided with a flexible layer.

[0006] Among them, the flexible layer is one of cloth, silica gel, gel and rubber.

[0007] Among them, the flexible layer is adhered to the hole wall of the waste discharge hole through the adhesive.

[0008] Among them, it also includes an upper die seat, the bottom surface of the upper die seat is fixedly installed with a cutting knife, the upper die seat is provided with a through hole located on the inner side of the cutting knife, and the through hole is provided with a top rod reciprocating in the height direction.

[0009] The installation plate is provided with an installation hole at each corner, the top surface of the upper die holder is provided with a threaded hole corresponding to the installation hole, the guide bolt comprises a head and a rod portion fixedly connected with the head, the top end of the rod portion is fixedly connected with the head, and the bottom end of the rod portion is provided with a thread, in the assembled state, the guide bolt is inserted into the corresponding installation hole, the head of the guide bolt abuts against the top surface of the installation plate, and the rod portion of the guide bolt is threadedly connected with the corresponding threaded hole.

[0010] The top end of the top rod is fixedly connected with the installation plate, the bottom end of the top rod is inserted into the through hole, and the bottom end of the top rod is fixedly connected with the pressing plate.

[0011] The width of the waste discharge groove is greater than the width of the cutter.

[0012] The top surface of the lower die holder is fixedly provided with at least one stopper.

[0013] Compared with the prior art, the embodiment of the utility model has the following beneficial effects: the flexible layer is arranged in the waste discharge hole, and the width of the waste discharge hole is smaller than the width of the waste material, when the waste material is pushed into the waste discharge hole, the waste discharge hole generates a small pressure on the waste material due to the limitation of the width, the small-range deformation of the foam waste material is driven to be clamped in the waste discharge hole, in addition, the friction between the flexible layer and the waste material can limit the rebound of the foam waste material, prevent the foam waste material from protruding from the surface of the lower die holder, avoid affecting the movement of the material belt, the overall structure is simple and compact, the waste discharge process does not rebound, and the problem of unsmooth waste discharge in the prior art is solved. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0015] Figure 1 It is the sectional view of the waste discharge mechanism in the embodiment. DETAILED DESCRIPTION

[0016] In order to make the personnel in the technical field better understand the utility model scheme, the following will combine the drawings in the embodiments of the utility model, and the technical scheme in the embodiments of the utility model will be clearly and completely described, obviously, the described embodiments are only some embodiments of the utility model, not all the embodiments.Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0017] The terms "first", "second", and the like in the description and in the claims of the utility model and the above drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, device, product or end including a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units not listed, or optionally also includes other steps or units inherent to these processes, methods, products or ends.

[0018] Reference to "embodiments" herein means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the utility model. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0019] The utility model discloses a kind of specific implementation of foam inner hole waste discharge mechanism, please see Figure 1 , waste discharge mechanism includes mounting plate 1, lower die holder 3 and upper die holder 2 located above lower die holder 3.

[0020] In the embodiment, mounting plate 1 is located above upper die holder 2, four guide bolts 11 are provided between upper die holder 2 and mounting plate 1 ( Figure 1 Only two guide studs are shown), each corner of mounting plate 1 is provided with an installation hole, the top surface of upper die holder 2 is provided with a threaded hole corresponding to the installation hole, the guide bolt 11 includes a head and a rod portion fixedly connected to the head, the top end of the rod portion is fixedly connected to the head, and the bottom end of the rod portion is provided with a thread, in the assembled state, the guide bolt 11 is inserted into the corresponding installation hole, the head of the guide bolt 11 abuts against the top surface of the mounting plate 1, and the rod portion of the guide bolt 11 is threadedly connected with the corresponding threaded hole. The outer circumferential surface of each guide bolt 11 is sleeved with a spring 12, and the spring 12 is used to drive the mounting plate 1 to move upward. The structure above can realize the movement of the mounting plate 1 relative to the upper die holder 2 in the height direction, and in operation, the mounting plate 1 is fixedly connected with the working end of the external stamping equipment.

[0021] In the embodiment, the bottom surface of the upper die holder 2 is fixedly provided with a cutter 22, the upper die holder 2 is provided with a through hole 21 located at the inner side of the cutter 22, and the through hole 21 is provided with a top rod 13 capable of reciprocating in the height direction. Specifically, the top end of the top rod 13 is fixedly connected with the mounting plate 1, the bottom end of the top rod 13 is inserted into the through hole 21, and the bottom end of the top rod 13 is fixedly connected with a pressing plate 14 capable of more uniformly pushing the foam waste 4. Since the mounting plate 1 can move relative to the upper die holder 2, the top rod 13 can move relative to the upper die holder 2, so that the top rod 13 can reciprocate up and down along the axial direction of the through hole 21 in the through hole 21 of the upper die holder 2.

[0022] As an improvement, the lower die holder 3 is provided with a waste discharge groove 31, the groove bottom of the waste discharge groove 31 is provided with a waste discharge hole 32, the width of the waste discharge hole 32 is smaller than the width of the foam waste 4, and the hole wall of the waste discharge hole 32 is provided with a flexible layer 33. Optionally, the flexible layer 33 is one of cloth, silica gel, gel and rubber, and as a preferred solution, the flexible layer 33 is adhered to the hole wall of the waste discharge hole 32 by an adhesive.

[0023] In addition, in order to avoid the cutter 22 from impacting the lower die holder 3 during the clamping process, at least one stopper 34 is fixedly installed on the top surface of the lower die holder 3, the stopper 34 can be made of hard rubber material, which can limit the downward movement of the upper die holder 2, and the width of the waste discharge groove 31 is greater than the width of the cutter 22, so that the cutter 22 will not directly impact the groove bottom of the waste discharge groove 31.

[0024] Compared with the prior art, the waste discharge mechanism of the embodiment, by setting the flexible layer 33 in the waste discharge hole 32, and the width of the waste discharge hole 32 being smaller than the width of the foam waste 4, when the foam waste 4 is pushed into the waste discharge hole 32, due to the width limitation, the waste discharge hole 32 generates a small pressure on the foam waste 4, which drives the foam waste 4 to deform in a small range and be clamped in the waste discharge hole 32, in addition, the friction between the flexible layer 33 and the foam waste 4 can limit the rebound of the foam waste 4, prevent the foam waste 4 from protruding out of the surface of the lower die holder 3, avoid affecting the movement of the material belt, the overall structure is simple and compact, the waste discharge process flow does not rebound, and the problem of unsmooth waste discharge in the past is solved.

[0025] Finally, it should be noted that: the disclosed foam inner hole waste discharge mechanism of the embodiment of the utility model is only the preferred embodiment of the utility model, and is only used to illustrate the technical scheme of the utility model, but not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand; the technical scheme recorded in the foregoing embodiments can still be modified, or some technical features can be replaced; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the spirit and scope of the technical scheme of the embodiments of the utility model.

Claims

1. A foam inner bore waste evacuation mechanism, comprising: The lower die base is provided with a waste discharge groove, the groove bottom of the waste discharge groove is provided with a waste discharge hole, the width of the waste discharge hole is smaller than the width of the external waste, and the hole wall of the waste discharge hole is provided with a flexible layer.

2. A mechanism for evacuating waste from a foam inner hole according to claim 1, wherein The flexible layer is one of cloth, silica gel, gel and rubber.

3. A mechanism for evacuating waste from a foam inner hole according to claim 2, wherein The flexible layer is adhered to the hole wall of the waste discharge hole by an adhesive.

4. The mechanism of claim 1, wherein, The upper die base is provided with a cutting knife, a through hole is arranged on the inner side of the cutting knife, and a top rod is arranged in the through hole and can reciprocate in the height direction.

5. A mechanism for evacuating waste from a foam inner hole according to claim 4, wherein The installation plate is arranged above the upper die base, four guide bolts are arranged, four installation holes are arranged at the four corners of the installation plate, the top surface of the upper die base is provided with threaded holes corresponding to the installation holes, the guide bolts include a head and a rod part fixedly connected with the head, the top end of the rod part is fixedly connected with the head, the bottom end of the rod part is provided with a thread, in the assembled state, the guide bolts are inserted into the corresponding installation holes, the head of the guide bolt abuts against the top surface of the installation plate, and the rod part of the guide bolt is screw-connected with the corresponding threaded hole; the outer circumferential surface of each guide bolt is sleeved with a spring, and the spring is used for driving the installation plate to move upward.

6. A mechanism for evacuating waste from a foam inner hole according to claim 5, wherein The top end of the top rod is fixedly connected with the installation plate, the bottom end of the top rod is inserted into the through hole, and the bottom end of the top rod is fixedly connected with a pressing plate.

7. A mechanism for evacuating waste from a foam inner hole according to claim 4, wherein The width of the waste discharge groove is greater than the width of the cutting knife.

8. A mechanism for evacuating waste from a foam inner hole according to claim 7, wherein The top surface of the lower die base is fixedly provided with at least one stopper.

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