Production technology facilitating injection molding and demolding and conducting secondary reinforcement on structure

Abstract

The production technology comprises the following steps that firstly, a left half part and a right half part which are independent of each other are obtained through injection molding of an injection molding machine, the left half part comprises a left side body and a left side cantilever, the right half part comprises a right side body and a right side cantilever, a left side reinforcing groove is formed in the left side body, and a right side reinforcing groove is formed in the right side cantilever; the right main body forms a right reinforcing groove; secondly, the left half part and the right half part are assembled and combined, and the left side reinforcing groove and the right side reinforcing groove are communicated with each other to obtain a to-be-reinforced area; thirdly, reinforcing ribs are obtained; and 4, the reinforcing ribs are placed in the to-be-reinforced area, the high-temperature heating device is used for heating the reinforcing ribs, the reinforcing ribs conduct heat to the colloid in the to-be-reinforced area, and the colloid is heated to be melted and adheres to the reinforcing ribs. According to the invention, the handle injection-molded part is designed into two independent parts, and the cantilever of the handle injection-molded part is reinforced in a secondary reinforcement manner, so that the whole injection-molded part with a stable structure is obtained.

Description

Technical Field

[0001] The present invention relates to the technical field of mold injection production, and particularly relates to a production process that facilitates injection mold release and performs secondary reinforcement on the structure. Background Art

[0002] As Figure 1 and Figure 2 shown, they are respectively the combined drawing and exploded view of a handle injection molded part 10. In the product design stage, the handle injection molded part 10 needs to be designed into two independent parts, the left half 11 and the right half 12. This design is for the convenience of injection mold release. After injection molding to obtain the independent left half 11 and right half 12, then the left half 11 and the right half 12 are assembled and combined to obtain the whole handle injection molded part 10.

[0003] From Figure 1 and Figure 2 it can be seen that whether it is the left half 11 or the right half 12, they both include a main body 13 and a cantilever 14. When assembling and combining the left half 11 and the right half 12, the main body 13 is fixed by using screws, while the cantilever 14 cannot be effectively fixed due to reasons such as its thin thickness. This will cause the cantilever 14 of the assembled handle injection molded part 10 to be prone to shaking, and thus the overall structural strength of the handle injection molded part 10 is not high.

[0004] In addition, it should be noted that based on the process consideration of mold injection, if the handle injection molded part 10 is not divided into the independent left half 11 and right half 12, but the handle injection molded part 10 is integrally injection molded, on the one hand, it cannot be injection molded out of the mold, and on the other hand, relevant parts cannot be assembled into the cavity of the injection molded part.

[0005] Therefore, in the design, it is still considered to design the handle injection molded part 10 into two independent parts, and then reinforce the cantilever 14 of the handle injection molded part 10 through secondary reinforcement, so as to obtain an overall injection molded part with stable structure. Summary of the Invention

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a production process that facilitates injection mold release and performs secondary reinforcement on the structure.

[0007] The purpose of the present invention is achieved by the following technical solutions:

[0008] A production process that facilitates injection mold release and performs secondary reinforcement on the structure includes the following steps:

[0009] Step 1: Inject two independent left and right halves through an injection molding machine. The left half includes an integrally formed left main body and a left cantilever, and the right half includes an integrally formed right main body and a right cantilever. A left reinforcing groove is formed at the edge of the left main body, and a right reinforcing groove is formed at the edge of the right main body.

[0010] Step 2: Assemble and combine the left and right halves, and use fasteners to firmly connect the left main body and the right main body. The left reinforcing groove and the right reinforcing groove communicate with each other to obtain a region to be reinforced.

[0011] Step 3: Obtain a reinforcing rib and bend and profile the reinforcing rib according to the shape of the region to be reinforced.

[0012] Step 4: Place the reinforcing rib in the region to be reinforced, and use a high-temperature heating device to heat the reinforcing rib. The reinforcing rib conducts heat to the colloid in the region to be reinforced, and the colloid melts and adheres to the reinforcing rib by gluing.

[0013] In one embodiment,

[0014] In Step 1, a left comb tooth strip is formed in the left reinforcing groove along its extension direction. The left comb tooth strip includes a number of left convex teeth distributed at intervals in sequence. A right comb tooth strip is formed in the right reinforcing groove along its extension direction. The right comb tooth strip includes a number of right convex teeth distributed at intervals in sequence.

[0015] In Step 2, after assembling and combining the left and right halves, a handle injection molded part is obtained. The handle injection molded part has an outer surface and an inner surface. The region to be reinforced obtained by the communication between the left reinforcing groove and the right reinforcing groove is located on the inner surface.

[0016] In Step 4, the reinforcing rib conducts heat to the left convex teeth and the right convex teeth in the region to be reinforced. The left convex teeth and the right convex teeth are heated and melted and flow into the surrounding gaps and adhere to the reinforcing rib by gluing.

[0017] In one embodiment, in Step 4, when heating the reinforcing rib, single-point local heating is adopted. A plurality of heating points to be heated are formed at intervals in sequence along the extension directions of the left reinforcing groove and the right reinforcing groove, and each heating point to be heated is heated by a high-temperature heating device.

[0018] In one embodiment, the high-temperature heating device is a laser welding machine.

[0019] In one embodiment, the high-temperature heating device is a hot air gun.

[0020] In one embodiment, the high-temperature heating device is an electric heating rod.

[0021] In one of the embodiments, in Step 3, the reinforcing rib is made of aluminum alloy, and a bending machine is used to bend and profile the reinforcing rib.

[0022] The present invention designs the handle injection molding part into two independent parts, and then strengthens the cantilever of the handle injection molding part by means of secondary reinforcement, so as to obtain an overall injection molding part with stable structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0024] Figure 1 Combined drawing of the handle injection molding part of the prior art;

[0025] Figure 2 For Figure 1 Exploded view of the handle injection molding part of the prior art shown;

[0026] Figure 3 Combined drawing (I) of the handle injection molding part of an embodiment of the present invention;

[0027] Figure 4 For Figure 3 Exploded view (I) of the handle injection molding part shown;

[0028] Figure 5 For Figure 3 Combined drawing (II) of the handle injection molding part shown;

[0029] Figure 6 For Figure 3 Exploded view (II) of the handle injection molding part shown;

[0030] Figure 7 For Figure 3 Exploded view (III) of the handle injection molding part shown. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] For the convenience of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0032] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this invention belongs. The terms used in the description of the present invention herein are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0034] The present invention discloses a production process that facilitates injection molding and secondary reinforcement of the structure, including the following steps:

[0035] Step 1, two independent left halves 100 and right halves 200 are obtained by injection molding with an injection molding machine (as shown), the left half 100 includes an integrally formed left main body 110 and a left cantilever 120 (as shown), the right half 200 includes an integrally formed right main body 210 and a right cantilever 220 (as shown), a left reinforcement groove 111 is formed at the edge of the left main body 110 (as shown), and a right reinforcement groove 211 is formed at the edge of the right main body 210 (as shown); Figure 3 as shown Figure 4 as shown Figure 4 as shown Figure 7 as shown Figure 7 as shown

[0036] Step 2, the left half 100 and the right half 200 are assembled and combined with each other, and the left main body 110 and the right main body 210 are firmly connected by fasteners (such as screws), and the left reinforcement groove 111 and the right reinforcement groove 211 communicate with each other to obtain a to-be-reinforced area 300 (as shown); Figure 6 as shown

[0037] Step 3, a reinforcing rib 400 is obtained, and the reinforcing rib 400 is bent and profiled according to the shape of the to-be-reinforced area 300; in this embodiment, the reinforcing rib 400 is made of aluminum alloy, and the reinforcing rib 400 is bent and profiled by a bending machine;

[0038] Step 4, as Figure 5 and Figure 6As shown, the reinforcing rib 400 is placed in the area 300 to be reinforced. The reinforcing rib 400 is heated by a high-temperature heating device, and the reinforcing rib 400 conducts heat to the colloid in the area to be reinforced. The colloid melts due to heat and is glued to the reinforcing rib 400. In this embodiment, the high-temperature heating device is preferably a laser welding machine. In other embodiments, the high-temperature heating device is a hot air gun or an electric heating rod.

[0039] In step one, a left comb-shaped tooth bar 112 is formed along the extension direction of the left reinforcing groove 111 (as Figure 7 shown), and the left comb-shaped tooth bar 112 includes a number of left convex teeth distributed at intervals in sequence; a right comb-shaped tooth bar 212 is formed along the extension direction of the right reinforcing groove 211 (as Figure 7 shown), and the right comb-shaped tooth bar 212 includes a number of right convex teeth distributed at intervals in sequence;

[0040] In step two, after the left half 100 and the right half 200 are assembled and combined with each other, a handle injection molding 20 is obtained. The handle injection molding 20 has an outer surface and an inner surface, and the area 300 to be reinforced obtained by the mutual penetration of the left reinforcing groove 111 and the right reinforcing groove 211 is located on the inner surface;

[0041] In step four, the reinforcing rib 400 conducts heat to the left convex teeth and the right convex teeth in the area 300 to be reinforced. The left convex teeth and the right convex teeth melt due to heat and flow into the surrounding gaps and are glued to the reinforcing rib 400.

[0042] In the design stage, the handle injection molding is designed into two independent parts, which facilitates the mold injection and subsequent assembly; two independent left halves 100 and right halves 200 are obtained by injection molding with an injection molding machine. Among them, the left half 100 includes a left main body 110 and a left cantilever 120 formed integrally, and the right half 200 includes a right main body 210 and a right cantilever 220 formed integrally.

[0043] In the present invention, the structures of the left cantilever 120 and the right cantilever 220 are particularly adjusted to be different from the traditional structures. For example, as Figure 7 shown, a left reinforcing groove 111 is formed at the edge of the left main body 110, and a right reinforcing groove 211 is formed at the edge of the right main body 210. This is prepared for the subsequent secondary reinforcement of the structure. It should also be added that forming a left reinforcing groove 111 at the edge of the left main body 110 and forming a right reinforcing groove 211 at the edge of the right main body 210 are also easy to achieve when the mold is ejected from the injection molding.

[0044] After injecting two independent left halves 100 and right halves 200 through an injection molding machine, the left half 100 and the right half 200 are assembled and combined with each other, and the left main body 110 and the right main body 210 are firmly connected by fasteners. As can be seen from the figure, the left main body 110 and the right main body 210 are firmly connected by fasteners, while the left cantilever 120 and the right cantilever 220 cannot be effectively fixed due to reasons such as thin thickness. This will cause the cantilever of the assembled handle injection molding to shake easily, and further result in low overall structural strength of the handle injection molding.

[0045] To solve this technical problem, in the later stage of assembly, it can be solved by using the reinforcing rib 400. The reinforcing rib 400 is bent and profiled according to the shape of the area 300 to be reinforced. For example, for the same batch of handle injection moldings, the shapes of the areas 300 to be reinforced are the same, and a bending machine can be used to bend the metal strip to obtain a large number of reinforcing ribs 400.

[0046] After obtaining the reinforcing rib 400, the reinforcing rib 400 is placed in the area 300 to be reinforced, and the reinforcing rib 400 is heated by a high-temperature heating device. The reinforcing rib 400 conducts heat to the colloid in the area to be reinforced, and the colloid melts by heat and is glued to the reinforcing rib 400. In this way, the left cantilever 120 and the right cantilever 220 can be reinforced under the action of the reinforcing rib 400, making it not easy for the cantilever to shake, and the overall structural strength of the handle injection molding is also enhanced. It should be noted that in the present invention, the metal reinforcing rib 400 is heated, and then the heat is indirectly conducted to the colloid by means of heat conduction, so that the colloid melts, thereby realizing the firm connection of the reinforcing rib 400. If the heat is directly applied to the colloid, it is not feasible, and the colloid will quickly melt and deform. Since the reinforcing rib 400 is made of metal, it can withstand greater heat without deformation, and the heat is evenly conducted to the colloid by means of heat conduction, and the colloid is evenly heated and fused with the reinforcing rib 400.

[0047] In the present invention, mainly the heat is conducted to the colloid in the area to be reinforced by means of heat conduction, and the colloid melts by heat and is glued to the reinforcing rib 400. During the melting process of the colloid, the colloid will expand and overflow from the groove, and it is easy to have a bulging phenomenon, and the inner and outer surfaces of the handle injection molding will become uneven. To solve this technical problem, in the present invention, a left comb-shaped tooth bar 112 is formed along the extension direction of the side reinforcing groove 111 (as Figure 7 shown), and the left comb-shaped tooth bar 112 includes a number of left convex teeth arranged at intervals in sequence; a right comb-shaped tooth bar 212 is formed along the extension direction of the right reinforcing groove 211 (as Figure 7 shown), and the right comb-shaped tooth bar 212 includes a number of right convex teeth arranged at intervals in sequence.

[0048] It can be seen that the reinforcing rib 400 will first conduct heat to the left comb tooth bar 112 and the right comb tooth bar 212. After the convex teeth on the comb tooth bar melt, they will flow to the surrounding intervals, thereby filling the intervals. In this way, it is not easy to have bulging phenomena, and the inner and outer surfaces of the handle injection molding will become smoother.

[0049] It should be noted that in the present invention, the handle injection molding 20 has an outer surface and an inner surface. The to-be-reinforced area 300 obtained by the mutual penetration of the left reinforcing groove 111 and the right reinforcing groove 211 is located on the inner surface. That is to say, in the present invention, the to-be-reinforced area 300 is arranged on the inner surface of the handle injection molding, which is considered based on the product appearance. The reinforcing rib 400 together with the melted colloid is hidden inside the surface and will not affect the appearance of the product.

[0050] In addition, considering that the assembled handle injection molding 20 may need to be disassembled again in some cases to replace or repair the internal parts, and as known from the above, the melted colloid has been glued to the reinforcing rib 400, and it will be difficult to remove the reinforcing rib 400.

[0051] To solve this technical problem, the present invention makes the following improvements:

[0052] On the one hand, a left comb tooth bar 112 is formed along the extension direction of the left reinforcing groove 111 (as Figure 7 shown), and the left comb tooth bar 112 includes a number of left convex teeth that are sequentially and spaced apart; a right comb tooth bar 212 is formed along the extension direction of the right reinforcing groove 211 (as Figure 7 shown), and the right comb tooth bar 212 includes a number of right convex teeth that are sequentially and spaced apart;

[0053] On the other hand, based on the structures of the above-mentioned left comb tooth bar 112 and right comb tooth bar 212, when heating the reinforcing rib 400 in the present invention, single-point local heating is adopted, that is: a plurality of sequentially spaced to-be-heated points are formed along the extension directions of the left reinforcing groove 111 and the right reinforcing groove 211, and a high-temperature heating device is used to heat each to-be-heated point. In this way, only some of the left convex teeth and right convex teeth will melt and adhere to the reinforcing rib 400. When it is necessary to remove the reinforcing rib 400, because only local adhesion occurs, the removal will be easier. After replacing or repairing the internal parts, when it is necessary to heat the reinforcing rib 400 again, because there are still some unused convex teeth that can be used, it is possible to choose to melt these unused convex teeth and adhere them to the reinforcing rib 400.

[0054] The above-described embodiments merely represent several implementation manners of the present invention. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A production process that facilitates injection molding and secondary reinforcement of the structure, characterized in that, It includes the following steps: Step 1: Two independent left and right halves are obtained by injection molding with an injection molding machine. The left half includes an integrally formed left main body and a left cantilever, and the right half includes an integrally formed right main body and a right cantilever. A left reinforcing groove is formed at the edge of the left main body, and a right reinforcing groove is formed at the edge of the right main body; Step 2: The left and right halves are assembled and combined with each other, and the left main body and the right main body are firmly connected by fasteners. The left reinforcing groove and the right reinforcing groove communicate with each other to obtain a region to be reinforced; Step 3: A reinforcing rib is obtained, and the reinforcing rib is bent and profiled according to the shape of the region to be reinforced; Step 4: The reinforcing rib is placed in the region to be reinforced, and the reinforcing rib is heated by a high-temperature heating device. The reinforcing rib conducts heat to the colloid in the region to be reinforced, and the colloid melts by heat and is glued to the reinforcing rib.

2. The production process for facilitating injection molding and demolding and performing secondary reinforcement on the structure according to claim 1, wherein In Step 1, a left comb tooth strip is formed in the left reinforcing groove along its extension direction. The left comb tooth strip includes a number of left convex teeth distributed at intervals in sequence; a right comb tooth strip is formed in the right reinforcing groove along its extension direction. The right comb tooth strip includes a number of right convex teeth distributed at intervals in sequence; In Step 2, after the left and right halves are assembled and combined with each other, a handle injection molded part is obtained. The handle injection molded part has an outer surface and an inner surface. The region to be reinforced obtained by the mutual communication of the left reinforcing groove and the right reinforcing groove is located on the inner surface; In Step 4, the reinforcing rib conducts heat to the left convex teeth and the right convex teeth in the region to be reinforced. The left convex teeth and the right convex teeth melt by heat and flow into the surrounding gaps and are glued to the reinforcing rib.

3. The production process according to claim 2, which is convenient for injection molding and secondary reinforcement of the structure, is characterized in that, In Step 4, when heating the reinforcing rib, single-point local heating is adopted. A plurality of heating points to be heated are formed at intervals in sequence along the extension directions of the left reinforcing groove and the right reinforcing groove, and each heating point to be heated is heated by a high-temperature heating device.

4. The production process according to claim 1 or 2, which is convenient for injection molding and secondary reinforcement of the structure, is characterized in that, The high-temperature heating device is a laser welding machine.

5. The production process for facilitating injection molding demolding and secondary reinforcement of the structure according to claim 1 or 2, characterized in that, The high-temperature heating device is a hot air gun.

6. The production process for facilitating injection molding and secondary reinforcement of the structure according to claim 1 or 2, characterized in that, The high-temperature heating device is an electric heating rod.

7. The production process for facilitating injection molding and secondary reinforcement of the structure according to claim 1, characterized in that, In Step 3, the reinforcing rib is made of aluminum alloy, and the reinforcing rib is bent and profiled by a bending machine.

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