A kind of shock attenuation air bag plastic shell injection molding piece toughening modification heat treatment device

Abstract

This utility model discloses a heat treatment device for toughening and modifying injection-molded plastic shell parts with shock absorption, including a hanging plate structure. Several cage structures are assembled and connected to the bottom of the hanging plate structure. The cage structure includes a cylindrical inner cylinder with several through holes. A bottom bracket structure is fixedly connected to the bottom of the inner cylinder. It also includes a frame structure supporting the outside of the inner cylinder. The bottom of the frame structure is fixedly connected to the top of the bottom bracket structure. A layered feeding structure is fixedly connected inside the inner cylinder. The layered feeding structure includes a support rod fixedly connected to the top of the bottom bracket structure, and several layered support structures spaced vertically are fixedly installed on the support rod. This structural method achieves a multi-layered structure inside the inner cylinder. The multi-layered structure design avoids excessive accumulation and compression of the plastic shell parts. Secondly, the layered feeding structure creates cavities of a certain size, ensuring a certain gap is reserved in the cavities during the feeding of the plastic shell parts.

Description

Technical Field

[0001] This utility model belongs to the field of shock-absorbing air bag technology, and in particular relates to a heat treatment device for toughening and modifying injection molded parts of shock-absorbing air bag plastic shells. Background Technology

[0002] Shock absorber airbags are cushioning devices on automobiles, especially heavy-duty trucks, which cushion the vehicle through pneumatic cushioning.

[0003] The outer shell of the shock-absorbing airbag is a plastic shell formed by injection molding. After being formed by the injection mold, the plastic shell needs to undergo heat treatment modification. After heat treatment modification, the performance of the plastic shell is improved, including its toughness.

[0004] During the heat treatment process of the shock-absorbing airbag's outer shell, a large number of plastic shells are placed in a cage, which is then lowered into a water bath for heat treatment by suspending the cage on a lifting device such as a hoist. During the heat treatment process, to improve the heat treatment effect, operators often need to swing the cage. During this swinging, the plastic parts inside the cage shake and loosen, increasing the gaps between them and improving the toughening effect of the water bath. This is because, in the existing cage structure, the large number of plastic shells placed together results in excessive "packing." Combined with the thermal expansion of the plastic shells during heat treatment, this leads to even more severe compression between the shell parts. This results in poor heat treatment modification and also easily causes deformation of the plastic shells due to excessive compression during heat treatment. The reason is that after heating, the hardness of the plastic shells decreases, making them more flexible. Combined with the thermal expansion of the piled-up shells, this makes them more prone to deformation under pressure.

[0005] Therefore, by using the above method, the extruded and stacked shell parts can be loosened to increase the heat treatment effect, while avoiding excessive extrusion and deformation of the shell parts.

[0006] Meanwhile, in the existing cage structures disclosed in the technology, in order to prevent the shell components from falling out from the gaps between the cage rods, the density of the cage rods is too high, resulting in a very large overall weight of the cage and making the operation process, such as lifting operations, quite difficult.

[0007] Therefore, while ensuring structural strength, using a lightweight cage can more flexibly increase the ease of operation. Utility Model Content

[0008] Based on the above background, the purpose of this utility model is to provide a heat treatment device for toughening and modifying injection molded parts with shock-absorbing air-filled plastic shells.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A heat treatment device for toughening and modifying injection molded parts with shock-absorbing air-filled plastic shells includes a hanging plate structure, and a number of hanging cage structures are assembled and connected to the bottom of the hanging plate structure.

[0011] The cage structure includes a cylindrical inner cylinder with several through holes.

[0012] The bottom of the inner cylinder is fixedly connected to a bottom bracket structure;

[0013] It also includes a skeleton structure that supports the outside of the inner cylinder; the bottom of the skeleton structure is fixedly connected to the top of the bottom bracket structure;

[0014] The inner cylinder is fixedly connected to a layered feeding structure, which includes a support rod fixedly connected to the top of the bottom bracket structure. Several layered support structures are fixedly installed on the support rod at vertical intervals.

[0015] Preferably, the suspended platform structure includes a suspended platform bracket, and a pair of spaced-apart cage structures are detachably assembled and connected to the bottom of the suspended platform bracket;

[0016] The top two sides of the hanging plate bracket have a pair of through holes that connect to the hanging cage structure.

[0017] Preferably, a hook is fixedly connected to the top center of the hanging plate bracket.

[0018] Preferably, the bottom bracket structure includes an annular base, and a bottom baffle fixedly connected to the inner side wall of the annular base at the bottom position of the inner cylinder;

[0019] The bottom of the inner cylinder is welded to the top of the annular base.

[0020] Preferably, the skeleton structure includes a plurality of skeleton support rods installed at the top of the annular base, the skeleton support rods abutting against the outer side wall of the inner cylinder;

[0021] The frame support rod can be detachably installed on the annular base and the hanging plate bracket.

[0022] Preferably, a plurality of hoop brackets are detachably installed between the frame support rods.

[0023] Preferably, the hoop bracket is fastened to the frame support rod by a number of bolts.

[0024] Preferably, the frame support rod is slidably connected to the annular base and the hanging plate bracket;

[0025] Nuts are threaded to both the upper and lower ends of the frame support rod.

[0026] Preferably, a fixed support rod is welded to the top center position of the bottom baffle;

[0027] The layered support structure includes a central adjustment seat threadedly connected to a fixed support rod;

[0028] The outer wall of the central adjustment seat is welded and fixedly connected with several layered support rods;

[0029] Several annular retaining rods are welded and fixedly connected between the layered support rods.

[0030] This utility model has the following beneficial effects:

[0031] 1. This utility model features a layered feeding structure fixedly connected within the inner cylinder. The layered feeding structure includes a support rod fixedly connected to the top of the bottom bracket structure, with several layered support structures spaced vertically on the support rod. This structure creates a multi-layered structure within the inner cylinder during operation. This multi-layered design prevents excessive accumulation and compression of the plastic shell components. Furthermore, the layered feeding structure creates cavities of a certain size, ensuring sufficient clearance during the feeding of the plastic shell components. The layered feeding of the plastic shell components also enhances heat conduction between the plastic shell components and the high-temperature water bath during heat treatment.

[0032] 2. During operation, the frame support rods abut against the inner cylinder. With the circumferentially distributed frame support rods providing this contact, the inner cylinder is less prone to deformation, thus ensuring the structural stability of the inner cylinder. This also reduces the overall weight of the device.

[0033] 3. By using the hoop brackets spaced at intervals, the frame support rods serve as the longitudinal support structure, and the hoop brackets serve as the annular support structure, thereby increasing the structural strength of the entire device. Attached Figure Description

[0034] 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.

[0035] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;

[0036] Figure 2 This is a schematic diagram of the bottom bracket structure in an embodiment of the present invention;

[0037] Figure 3This is a schematic diagram of the layered feeding structure in an embodiment of the present invention;

[0038] Figure 4 This is a schematic diagram of the layered feeding structure arranged inside the inner cylinder in an embodiment of this utility model;

[0039] Figure 5 This is an embodiment of the present utility model. Figure 1 A structural diagram from another perspective.

[0040] 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

[0041] 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.

[0042] 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.

[0043] Furthermore, in this utility model, descriptions involving "first," "second," etc., are 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 that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0044] Example 1

[0045] like Figure 1-5 As shown, a heat treatment device for toughening and modifying injection molded parts with shock-absorbing air bag plastic shell includes a hanging plate structure, and a pair of hanging cage structures 2 arranged on the left and right sides are assembled and connected to the bottom of the hanging plate structure.

[0046] The cage structure 2 includes a cylindrical inner cylinder 21 made of stainless steel with a thickness of 2mm and a length of 2m. The inner cylinder 21 has several through-holes; these through-holes are strip-shaped and arranged circumferentially on the outer wall of the inner cylinder 21.

[0047] The specific structure of the suspended platform structure is as follows:

[0048] The hanging platform structure includes a hanging platform bracket 1, the bottom of which is detachably connected to a pair of spaced-apart hanging cage structures 2; the top of the hanging platform bracket 1 has a pair of through holes communicating with the hanging cage structures 2. During the loading process, the plastic shell is placed into the through holes.

[0049] Meanwhile, a bottom bracket structure is fixedly connected to the bottom of the inner cylinder 21; specifically, the bottom bracket structure includes an annular base 24, and a bottom baffle 241, which is fixedly connected to the inner wall of the annular base 24 and blocks the bottom of the inner cylinder 21. After the plastic shell is inserted, it is blocked by the bottom baffle 241. The bottom of the inner cylinder 21 is welded to the top of the annular base 24.

[0050] Meanwhile, a hook 11 is fixedly connected to the top center of the hanging plate bracket 1. During operation, the hook is suspended on the hook of a lifting device such as a hoist in the existing manner, and the entire device is suspended and placed into a water bath for heating (the water bath is a conventional stainless steel tube disclosed in the prior art, and is heated by a method such as an electric heating rod).

[0051] In actual operation, to prevent deformation of the plastic shell due to heat compression during heat treatment in the inner cylinder 21, this invention also includes a layered feeding structure fixedly connected inside the inner cylinder 21. The layered feeding structure includes a support rod 25 fixedly connected to the top of the bottom bracket structure, and several layered support structures 26 spaced vertically on the support rod 25.

[0052] Specifically, a fixed support rod 25 is welded to the top center of the bottom baffle 241; the layered support structure 26 includes a central adjusting seat 261 (the support rod 25 is cylindrical) threadedly connected to the fixed support rod 25, and several layered support rods 263 are welded and fixedly connected to the outer wall of the central adjusting seat 261. The layered support rods 263 are distributed circumferentially on the outer wall of the central adjusting seat 261.

[0053] Meanwhile, several annular baffles 262 are welded and fixedly connected between the layered support rods 263, and the annular baffles 262 are arranged concentrically. The above structure realizes the formation of a layered baffle structure through the central adjusting seat 261, the layered support rods 263, and the annular baffles 262. During operation, the operator puts the plastic shell into the inner cylinder 21, and then screws a layered material feeding structure onto the support rod 25 to serve as the bottom support for the upper layer of plastic shell. In this way, all plastic shells are placed in layers.

[0054] The above structure enables the formation of a multi-layer structure within the inner cylinder 21 during operation. This multi-layer structure design serves two purposes: firstly, it prevents the plastic shell parts from being excessively piled up and compressed; secondly, the layered material feeding structure of the upper and lower layers forms a cavity of a certain size, ensuring that a certain gap is reserved in the cavity during the feeding of the plastic shell parts.

[0055] By layering the plastic shell components, heat conduction between the plastic shell components and the high-temperature water bath is increased during the heat treatment process.

[0056] Example 2

[0057] like Figure 1-5 As shown, this embodiment is based on the structure of embodiment 1. Due to the use of a thin stainless steel inner cylinder 21, the purpose is to reduce the weight of the entire device and reduce the difficulty of hoisting operations. Therefore, in order to increase the structural strength of the inner cylinder 21, the above structure also includes a skeleton structure supporting the outside of the inner cylinder 21; the bottom of the skeleton structure is fixedly connected to the top of the bottom bracket structure.

[0058] The skeleton structure includes six skeleton support rods 22 installed at the top of the annular base 24, and the skeleton support rods 22 abut against the outer wall of the inner cylinder 21; the skeleton support rods 22 are detachably installed on the annular base 24 and the hanging plate bracket 1.

[0059] Specifically, the frame support rod 22 is slidably connected to the annular base 24 and the hanging plate bracket 1. Nuts 221 are threaded onto both the upper and lower ends of the frame support rod 22. During operation, the frame support rod 22 abuts against the inner cylinder 21. With the circumferentially distributed frame support rods 22 abutting against it, the inner cylinder 21 is less prone to deformation, thus ensuring the structural stability of the inner cylinder 21. This also reduces the weight of the entire device.

[0060] Example 3

[0061] like Figure 1-5As shown, in this embodiment, based on the structure of Embodiment 2, to further increase the structural strength of the inner cylinder 21, several hoop brackets 23 are detachably installed between the aforementioned frame support rods 22. The hoop brackets 23 are fastened to the frame support rods 22 by several bolts. By using the hoop brackets 23 spaced vertically, the frame support rods 22 serve as the longitudinal support structure, and the hoop brackets 23 serve as the annular support structure, thereby increasing the structural strength of the entire device.

[0062] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A shock absorbing air bag plastic housing injection molded part toughening modification heat treatment apparatus characterized by, It includes a suspended platform structure, the bottom of which is fitted with several suspended cage structures; The cage structure includes a cylindrical inner cylinder with several through holes. The bottom of the inner cylinder is fixedly connected to a bottom bracket structure; It also includes a skeleton structure that supports the outside of the inner cylinder; the bottom of the skeleton structure is fixedly connected to the top of the bottom bracket structure; The inner cylinder is fixedly connected to a layered feeding structure, which includes a support rod fixedly connected to the top of the bottom bracket structure. Several layered support structures are fixedly installed on the support rod at vertical intervals.

2. The apparatus for toughening and heat treatment of a damped gas pocket plastic shell injection molded part according to claim 1, wherein, The suspended platform structure includes a suspended platform bracket, and a pair of spaced-apart cage structures are detachably assembled and connected to the bottom of the suspended platform bracket. The top two sides of the hanging plate bracket have a pair of through holes that connect to the hanging cage structure.

3. The apparatus for toughening and heat treating of a shock absorbing gas pocketed plastic shell injection molded part of claim 2, wherein, A hook is fixedly connected to the top center of the hanging plate bracket.

4. The apparatus for toughening and heat treatment of a shock-absorbing gas-filled plastic shell injection-molded part according to claim 2, characterized in that, The bottom bracket structure includes an annular base, and a bottom baffle that is fixedly connected to the inner side wall of the annular base at the bottom of the inner cylinder. The bottom of the inner cylinder is welded to the top of the annular base.

5. The apparatus for toughening and heat treating of a shock absorbing gas pocket plastic shell injection molded part according to claim 4, wherein, The skeleton structure includes several skeleton support rods installed at the top of the annular base, and the skeleton support rods abut against the outer wall of the inner cylinder; The frame support rod can be detachably installed on the annular base and the hanging plate bracket.

6. The apparatus for toughening and heat treating of a shock-absorbing gas-filled plastic shell injection-molded part according to claim 5, characterized in that, Several hoop brackets can be detachably installed between the frame support rods.

7. The apparatus for toughening and heat treating of a shock absorbing gas pocketed plastic shell injection molded part of claim 6, wherein, The hoop bracket is fastened to the frame support rod by several bolts.

8. The apparatus for toughening and heat treating of injection molded shock absorbing gas pocket plastic enclosure parts of claim 5, wherein, The frame support rod is slidably connected to the annular base and the hanging plate bracket; Nuts are threaded to both the upper and lower ends of the frame support rod.

9. The apparatus for toughening and heat treating of injection molded shock absorber gas bag plastic shell parts of claim 4 wherein, A fixed support rod is welded to the top center position of the bottom baffle; The layered support structure includes a central adjustment seat threadedly connected to a fixed support rod; The outer wall of the central adjustment seat is welded and fixedly connected with several layered support rods; Several annular retaining rods are welded and fixedly connected between the layered support rods.

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