Toughening heat treatment suspension cage for injection molded part
By designing the toughening heat treatment cage of injection molded parts with elastic loading mechanism and rope pulling system, the problem of not being able to fully contact heat during the heat treatment of injection molded parts is solved, and the full-dimensional heat contact and toughness of injection molded parts are achieved, ensuring operation safety Sex and efficiency.
Patent Information
- Application Number
- CN202421222313.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-31
AI Technical Summary
During the heat treatment of injection molded parts, the injection molded parts cannot fully contact heat due to accumulation, resulting in unsatisfactory toughening effect. Moreover, due to the large weight of the cage or barrel, it is difficult to move, resulting in the product toughness that cannot be effectively improved.
A toughening heat treatment cage for injection molded parts is designed, using an elastic loading mechanism and a rope pulling system. The posture of the injection molded parts is changed through the up and down shaking of the elastic loading frame to ensure full contact with heat, and adapt to different sizes through the height adjustment structure. Injection molded parts.
It realizes all-round heat contact of injection molded parts during heat treatment, improves toughening effect, and improves operating safety and product toughness performance.
Smart Images
Figure CN222346341U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of toughening heat treatment of injection molded parts, and in particular relates to a toughening heat treatment cage for injection molded parts. Background Art
[0002] Injection molded parts are workpieces of a specific shape and size formed by injection molding. They are made of plastic, so they are not only light in texture and low in cost, but also easy to cast, so they are widely used in the industry.
[0003] For example, the outer shell of the shock absorber air bag used in automobiles, commonly known as the shock absorber air bag, is formed by injection molding. Specifically, since the outer shell of the shock absorber air bag is not only complex in shape but also complex in structure, the injection molding method not only has a very high processing efficiency, but also produces products with high precision.
[0004] Since the toughness of injection molded parts is not high after injection molding, in order to increase toughness, heat treatment is often used in the industry. The most common method is steam heat treatment. Specifically, the injection molded parts are placed in a cage or a cylinder with a through-hole structure, and then placed in a heat treatment device, such as a heated water cylinder, and treated with hot water or heated steam.
[0005] However, during the processing, the injection molded parts are piled up in the cage or barrel, and the degree of accumulation is relatively high. During the heat treatment process, they cannot be fully exposed to heat, and thus the heat treatment toughening effect is not ideal.
[0006] Therefore, in the actual production process, it is necessary to constantly shake the cage or barrel to continuously move the injection molded parts, so as to facilitate the adjustment of their posture and expose the side that has not fully received the heat to face the heat source.
[0007] However, due to the large weight of the injection molded parts piled up in batches, the cage and barrel are difficult to move. After moving, only a small number of injection molded parts can be adjusted, while most of the injection molded parts, especially those piled up in the internal position, are difficult to adjust in all directions, which results in the surface of the injection molded parts being unable to receive heat modification in all directions. After inspection, the toughness of a large number of products could not be effectively improved and had to be reworked. Utility Model Content
[0008] Based on the above background, the purpose of the utility model is to provide a toughening heat treatment cage for injection molded parts.
[0009] In order to achieve the above objectives, the utility model adopts the following technical solutions:
[0010] A cage for toughening heat treatment of injection molded parts, comprising a cage mechanism, wherein the cage mechanism comprises a cage frame, wherein a plurality of elastic loading mechanisms spaced apart from each other are assembled and connected in the cage frame, and the injection molded parts are placed in layers on the elastic loading mechanisms;
[0011] The elastic loading mechanism comprises a loading frame, the outer end of the loading frame is integrally formed with a plurality of vertically arranged inner spring seats, the cage frame is assembled and connected with a plurality of outer spring seats corresponding to the inner spring seats, and a spring is fixedly connected between the inner spring seats and the outer spring seats;
[0012] The elastic loading mechanism also includes a pull rope fixedly connected to the bottom position of the loading rack;
[0013] During the heat treatment process, the draw cord is pulled up and down, and the loading rack is elastically raised and lowered in height, and the injection molded parts loaded on the loading rack change their posture after elastic jumping.
[0014] Preferably, the material carrier comprises a plurality of horizontal frame parts distributed in an annular manner, and the inner spring seats are respectively integrally formed at the ends of the horizontal frame parts.
[0015] Preferably, a pull ring is welded at the bottom of the horizontal frame portion, and the pull rope is hung on the pull ring.
[0016] Preferably, the cage frame comprises annular seat plates spaced apart from each other, and a plurality of longitudinal cage rods are assembled and connected between the annular seat plates;
[0017] The draw cord runs through the gaps between the longitudinal cage rods.
[0018] Preferably, the cage mechanism may further comprise a plurality of annular support hoop rods welded between the inner side walls of the longitudinal cage rods.
[0019] Preferably, the elastic loading mechanism is assembled and connected to the longitudinal cage rod via a height adjustment structure; the height spacing between adjacent elastic loading mechanisms can be adjusted via the height adjustment structure.
[0020] Preferably, the height adjustment structure comprises a plurality of pairs of nuts respectively positioned at both sides of the outer spring seat;
[0021] The height spacing between the outer spring seats is adjusted by the nut.
[0022] Preferably, the cage mechanism further comprises a casing detachably mounted between the annular seat plates;
[0023] The protective tube is provided with a plurality of long strip through-hole structures.
[0024] Preferably, two symmetrically arranged ear plates are welded to the top of the annular seat plate.
[0025] The utility model has the following beneficial effects:
[0026] 1. During the heat treatment process, the injection molded parts are placed on the loading rack in layers. At this time, the pull rope is passed through the gap between the longitudinal cage rods until the free end is located on the outside of the heat treatment cylinder. During the heat treatment process, the pull rope is pulled up and down, and the loading rack is elastically raised and lowered in height. Specifically, under the action of tension, the loading rack carries the spring and shakes up and down. During the shaking process, the injection molded parts placed on the loading rack are thrown up and down, thereby changing their posture and fully receiving heat. Under the partition of the upper and lower loading racks, the injection molded parts are limited between the loading racks. In this way, the loaded injection molded parts are shaken in an elastic shaking manner, which is convenient for adjusting the posture, thereby ensuring that the injection molded parts fully receive heat. This method greatly improves the heat treatment toughening effect of the injection molded parts.
[0027] And because it is pulled by a rope, and after the rope passes through the mouth of a heat treatment device such as a heat treatment water cylinder, the free end is controlled by an operator, so the operation safety is relatively high.
[0028] 2. The height spacing of adjacent elastic loading mechanisms can be adjusted through the height adjustment structure. The height adjustment is to increase or decrease the spacing of the elastic loading mechanisms according to the size of the injection molded product, so that the injection molded parts can be fully moved during the elastic shaking process. This method ensures that especially large-sized injection molded parts can be fully shaken and their postures can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0030] Figure 1 It is a schematic diagram of the overall structure in an embodiment of the utility model;
[0031] Figure 2 This is a structural schematic diagram of the cage mechanism in the embodiment of the utility model;
[0032] Figure 3 This is a schematic diagram of the structure of the elastic loading mechanism in the embodiment of the utility model;
[0033] Figure 4 This is a schematic diagram of the connection structure of the draw cord in the embodiment of the utility model;
[0034] Figure 5 For the utility model embodiment Figure 2 A schematic diagram of the structure from another perspective;
[0035] Figure 6 It is a schematic structural diagram of the bolts for fixing the two ends of the spring in the embodiment of the utility model.
[0036] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0038] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0039] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0040] Example 1
[0041] like Figure 1-6 As shown, a cage for toughening heat treatment of injection molded parts includes a cage mechanism, and the injection molded parts are placed in the cage mechanism. Specifically, the cage mechanism includes a cage frame, and the cage frame includes annular seat plates 21 spaced apart from each other, and a plurality of longitudinal cage rods 22 are assembled and connected between the annular seat plates 21.
[0042] At the same time, in order to improve the compression and deformation resistance of the cage frame, the above-mentioned cage mechanism can also include a plurality of annular support hoop rods 23 welded between the inner side walls of the longitudinal cage rods 22.
[0043] Example 2
[0044] like Figure 1-6As shown, based on the structure of Example 1, the cage frame is equipped with a plurality of elastic loading mechanisms 3 spaced apart from each other, and the injection molded parts are placed on the elastic loading mechanisms 3 in layers.
[0045] Several injection molded parts are laid flat on each layer of elastic material carrier 3. Layered heat treatment is achieved to avoid serious accumulation, and the injection molded parts cannot be fully exposed to heat.
[0046] Specifically, the elastic loading mechanism 3 includes a loading frame 31, and the outer end portion of the loading frame 31 is integrally formed with a plurality of vertically arranged inner spring seats 311 (specifically, the loading frame 31 includes a plurality of annularly distributed horizontal frame portions, and the inner spring seats 311 are respectively integrally formed at the ends of the horizontal frame portions, and the inner spring seats 311 are in a vertical state).
[0047] Correspondingly, a plurality of outer spring seats 32 corresponding to the inner spring seats 311 are assembled and connected on the longitudinal cage rod 22 (specifically, the outer spring seat 32 includes a horizontal portion assembled on the longitudinal cage rod 22, and a vertical portion inside the integrally formed horizontal portion), and a spring 33 is fixedly connected between the inner spring seat 311 and the outer spring seat 32.
[0048] In the actual working process, bolts are welded to the two ends of the spring 33 respectively, and the spring 33 is detachably installed between the inner spring seat 311 and the outer spring seat 32, so as to facilitate the installation of each layer of the carrier 31 layer by layer, so as to facilitate the installation of the carrier 31 layer by layer from the lower end position in the cage during the loading process, and to place the injection molded parts, and to disassemble the carrier 31 layer by layer from the upper end position to the lower end position after heat treatment. During the operation, the hand passes through the gap between the longitudinal cage rods 22, and the operation is not difficult.
[0049] At the same time, the elastic loading mechanism 3 also includes a drawstring 34 fixedly connected to the bottom of the loading frame 31. Specifically, a draw ring 341 is welded at the bottom of the horizontal frame, and the drawstring 34 is hung on the draw ring 341. The drawstring 34 passes through the gap between the longitudinal cage rods 22. The outer end of the drawstring 34 is fixedly connected to the draw ring.
[0050] During the heat treatment process, the injection molded parts are placed on the carrier 31 in layers in the above manner. At this time, the pull rope 34 is passed through the gap between the longitudinal cage rods 22 until the free end is located outside the heat treatment cylinder. During the heat treatment process, the pull rope 34 is pulled up and down, and the carrier 31 is elastically lifted and lowered in height. Specifically, under the action of tension, the carrier 31 carries the spring 33 and shakes up and down. During the shaking process, the injection molded parts placed on the carrier 31 are thrown up and down, thereby changing their posture and fully receiving heat. Under the isolation of the upper and lower carriers 31, the injection molded parts are limited between the carriers 31.
[0051] Example 3
[0052] like Figure 1-6 As shown, in this embodiment, based on the structure of the embodiment 2, the elastic material loading mechanism 3 is assembled and connected to the longitudinal cage rod 22 through a height adjustment structure; the height spacing of adjacent elastic material loading mechanisms 3 can be adjusted through the height adjustment structure. The height adjustment is intended to increase the elastic material loading mechanism 3 or reduce the spacing of the elastic material loading mechanism 3 according to the size of the injection molded product, so that the injection molded product can be fully moved during the elastic shaking process.
[0053] Specifically, the height adjustment structure includes a plurality of pairs of nuts 331 respectively positioned at the two sides of the outer spring seat 32 (the nuts are positioned at the top and the bottom); the height spacing between the outer spring seats 32 is adjusted by the nuts. The height spacing of the outer spring seats 32 can be pre-adjusted by turning the nuts upward or in the direction, and then the height can be adjusted by assembling the upper loading frame 31.
[0054] Example 4
[0055] like Figure 1-6 As shown, based on the structure of Example 4, the cage mechanism of this embodiment also includes a protective tube 1 that can be detachably assembled between the annular seat plates 21; a plurality of long strip through-hole structures are provided on the protective tube 1 (similarly, the pull rope 34 passes through the long strip through-holes). Specifically, the inner side walls of the top and bottom tube openings of the protective tube 1 are fastened to the outer side walls of the annular seat plates 21 by a plurality of bolts. The protective tube 1 is intended to prevent the injection molded parts from extending out of the gap position of the cage frame and from being deformed by collisions during the process of hoisting the cage frame. Specifically, the shapes and sizes of injection molded products (such as shock-absorbing air bags) are often different (different models of products are matched and used on different vehicles). Therefore, once a small-sized product is provided, it is easy to extend out of the gap position of the cage frame. In this way, effective protection of the product is achieved.
[0056] At the same time, two symmetrically arranged ear plates 211 are welded to the top of the annular seat plate 21. After the existing method of loading materials is installed, the entire device is suspended and lowered by a crane or the entire device is lifted after heat treatment, and the hook of the crane is pulled and hung on the ear holes of the ear plates 211.
[0057] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.
Claims
1. A cage for toughening and heat treatment of injection molded parts, characterized in that: It includes a cage mechanism, which includes a cage frame, in which a plurality of elastic material loading mechanisms are connected and arranged at intervals up and down, and the injection molded parts are placed in layers on the elastic material loading mechanisms; The elastic loading mechanism comprises a loading frame, the outer end of the loading frame is integrally formed with a plurality of vertically arranged inner spring seats, the cage frame is assembled and connected with a plurality of outer spring seats corresponding to the inner spring seats, and a spring is fixedly connected between the inner spring seats and the outer spring seats; The elastic loading mechanism also includes a pull rope fixedly connected to the bottom position of the loading rack; During the heat treatment process, the draw cord is pulled up and down, and the loading rack is elastically raised and lowered in height, and the injection molded parts loaded on the loading rack change their posture after elastic jumping.
2. The toughening heat treatment cage for injection molded parts according to claim 1, characterized in that: The material carrier comprises a plurality of horizontal frame parts which are distributed in an annular manner, and the inner spring seats are respectively integrally formed at the ends of the horizontal frame parts.
3. The toughening heat treatment cage for injection molded parts according to claim 2, characterized in that: A pull ring is welded at the bottom of the horizontal frame portion, and the pull rope is hung on the pull ring.
4. The toughening heat treatment cage for injection molded parts according to claim 3, characterized in that: The cage frame comprises annular seat plates spaced apart from each other, and a plurality of longitudinal cage rods are assembled and connected between the annular seat plates; The draw cord runs through the gaps between the longitudinal cage rods.
5. The toughening heat treatment cage for injection molded parts according to claim 4, characterized in that: The cage mechanism may also include a plurality of annular support hoop rods welded between the inner side walls of the longitudinal cage rods.
6. The toughening heat treatment cage for injection molded parts according to claim 4, characterized in that: The elastic material loading mechanism is assembled and connected to the longitudinal cage rod via a height adjustment structure; the height spacing between adjacent elastic material loading mechanisms can be adjusted via the height adjustment structure.
7. The toughening heat treatment cage for injection molded parts according to claim 6, characterized in that: The height adjustment structure includes a plurality of pairs of nuts respectively positioned at two sides of the outer spring seat; The height spacing between the outer spring seats is adjusted by the nut.
8. The toughening heat treatment cage for injection molded parts according to claim 4, characterized in that: The cage mechanism also includes a casing detachably mounted between the annular seat plates; The protective tube is provided with a plurality of long strip through-hole structures.
9. The toughening heat treatment cage for injection molded parts according to claim 4, characterized in that: Two symmetrically arranged hanging ear plates are welded to the top of the annular seat plate.