Injection mold for preventing deformation of steel material

Abstract

The utility model relates to the field of injection molds, in particular to an injection mold for preventing deformation of steel materials, which comprises a forming cavity and the steel materials positioned in the forming cavity, gaps are arranged between two side walls of the steel materials and the inner wall of the forming cavity, a glue outlet is arranged on the mold and faces one of the gaps, and the glue outlet is communicated with the forming cavity. The distance between the side wall of the steel material at the gap opposite to the glue outlet and the forming cavity is smaller than the distance between the side wall of the steel material at the other gap and the forming cavity, so that the thickness of the glue solution on the side, away from the glue outlet, of the steel material is increased, the steel material can be well supported and blocked, and even if the side face of the steel material is impacted when glue is discharged from the glue outlet, the steel material cannot be damaged. And the steel material is not easy to bend and deform towards one side, far away from the glue outlet, of the steel material, so that the service life of the steel material is prolonged, and the injection molding product quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold field, concretely relates to a kind of injection mold for preventing steel deformation. BACKGROUND

[0002] For some automobile injection molding parts, for example, unlocking handle, when injection molding, steel material needs to be placed in the forming chamber of mold, there is a certain gap between steel material and the inner wall of forming chamber, then glue solution is injected into forming chamber, glue solution is wrapped outside steel material, when injection molding is completed, steel material is extracted from injection molding part, so that steel material is separated from injection molding part, so that the injection molding part with hollow structure is injection molded.

[0003] However, in the prior art, the glue outlet of the mold is directed to one side (for example, the lower side) of the steel material, and the glue outlet fills the glue to both sides of the steel material when the glue is discharged, so as to wrap the steel material, and after the injection molding is completed, the glue thickness on the side (for example, the upper side) of the steel material away from the glue outlet is less than the glue thickness on the side (for example, the lower side) of the steel material facing the glue outlet, so that the glue on the side (for example, the lower side) of the steel material facing the glue outlet is thicker during injection molding, and the side (for example, the lower side) of the steel material facing the glue outlet has a larger glue discharge pressure, which may cause the steel material to bend and deform towards the side (for example, the upper side) with thinner glue, thereby causing damage to the steel material. In addition, in this case, the side of the steel material with thinner glue has less glue, and the side of the injection molding part also has a hole, thereby affecting the quality of the injection molding part. SUMMARY

[0004] The utility model intends to provide an injection mold for preventing steel deformation to solve the problem of steel deformation.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an injection mold for preventing steel deformation, comprising a forming chamber and a steel material located in the forming chamber, the gap between the two side walls of the steel material and the inner wall of the forming chamber, a glue outlet is provided on the mold, the glue outlet is directed to one of the gaps, and the distance between the side wall of the steel material and the forming chamber at the gap opposite to the glue outlet is less than the distance between the side wall of the steel material and the forming chamber at the other gap.

[0006] Thus, by the present scheme, since the distance between the steel material side wall and the forming chamber at the gap opposite to the glue outlet is smaller than the distance between the steel material side wall and the forming chamber at the other gap, the thickness at the gap opposite to the glue outlet is smaller than the thickness at the other gap, so that the glue thickness at the gap opposite to the glue outlet is smaller than the glue thickness at the other gap of the steel material, compared with the prior art, the glue thickness on the side of the steel material away from the glue outlet is larger than the glue thickness on the side of the steel material towards the glue outlet, the condition that the glue thickness on the side of the steel material towards the glue outlet is larger than the glue thickness on the other side of the steel material is changed, so that the glue on the side of the steel material away from the glue outlet can better support and block the steel material, even if the side of the steel material is impacted when the glue outlet discharges glue, the steel material is not easy to bend and deform on the side away from the glue outlet, so that the service life of the steel material is improved, and the product quality of injection molding is improved.

[0007] To achieve the above object, the utility model discloses the following another technical scheme: a kind of injection mold for preventing steel material deformation, including forming chamber and steel material in forming chamber, both side walls of steel material and the inner wall of forming chamber have gap, glue outlet is provided on mold, glue outlet is towards one gap, the gap opposite to glue outlet is thin gap, the other gap is thick gap, the thickness of thin gap is less than the thickness of thick gap.

[0008] Thus, by the present scheme, since the thickness of the thin gap is smaller than the thickness of the thick gap, after injecting glue into the mold, the glue thickness at the thin gap is smaller than the glue thickness at the thick gap, compared with the prior art, the glue thickness on the side of the steel material away from the glue outlet (the glue thickness at the thick gap) is larger than the glue thickness on the side of the steel material towards the glue outlet (the glue thickness at the thin gap), the condition that the glue thickness on the side of the steel material towards the glue outlet is larger than the glue thickness on the other side of the steel material is changed, so that the glue on the side of the steel material away from the glue outlet can better support and block the steel material, even if the side of the steel material is impacted when the glue outlet discharges glue, the steel material is not easy to bend and deform on the side away from the glue outlet, so that the service life of the steel material is improved, and the product quality of injection molding is improved.

[0009] To achieve the above object, the utility model discloses the following another technical scheme: a kind of injection mold for preventing steel material deformation, including forming chamber and steel material in forming chamber, both side walls of steel material and the inner wall of forming chamber have gap, glue outlet is provided on mold, glue outlet is towards one gap, after glue outlet discharges glue, glue flows to both sides of steel material, the glue thickness at the gap opposite to the glue outlet is smaller than the thickness of glue at the other gap.

[0010] Therefore, by the scheme, the glue thickness at the gap opposite to the glue outlet is less than the glue thickness at the other gap, compared with the prior art, the glue thickness on the side of the steel material away from the glue outlet is greater than the glue thickness on the other side of the steel material, so that the glue on the side of the steel material away from the glue outlet can better support and block the steel material, and even if the side of the steel material is impacted when the glue outlet discharges glue, the steel material is not easy to bend and deform on the side away from the glue outlet, thereby improving the service life of the steel material and improving the product quality of injection molding.

[0011] Preferably, as an improvement, the first mold and the second mold are combined to form a molding chamber.

[0012] Preferably, as an improvement, the first mold is provided with a first molding chamber, and the second mold is provided with a second molding chamber, and the first molding chamber and the second molding chamber are combined after the first mold and the second mold are combined.

[0013] Preferably, as an improvement, the driving member and the sliding block connected with the driving member are included, the insert is connected to the sliding block, and the steel material is fixedly connected to the insert.

[0014] Therefore, by driving the sliding block to move by the driving member, the insert moves by the sliding block, and the steel material moves by the insert, thereby achieving the insertion of the steel material into the molding chamber of the mold before injection molding or the extraction of the steel material from the injection molded product after injection molding.

[0015] Preferably, as an improvement, the thickness of the steel material is 2-3mm.

[0016] Preferably, as an improvement, the distance between the side wall of the steel material and the inner wall of the molding chamber at the gap opposite to the glue outlet is 1.1-1.8mm, and the distance between the side wall of the steel material and the inner wall of the molding chamber at the other gap is 2.1-2.8mm.

[0017] Therefore, by controlling the distance between the two side walls of the steel material and the inner wall of the molding chamber within the above range, the bending of the steel material can be avoided.

[0018] Preferably, as an improvement, the thickness of the thin gap is 1.1-1.8mm, and the thickness of the thick gap is 2.1-2.8mm.

[0019] Therefore, by controlling the thickness of the thin gap and the thick gap within the above range, the bending of the steel material can be avoided.

[0020] Preferably, as an improvement, the glue thickness at the gap opposite to the glue outlet is 1.1-1.8mm, and the glue thickness at the other gap is 2.1-2.8mm.

[0021] Therefore, by controlling the thickness of the glue on both sides of the steel material within the above range, the steel material can be prevented from bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a three-dimensional diagram of an injection mold for preventing steel deformation, in which the first mold and the second mold are in a covering state.

[0023] Figure 2 This is a three-dimensional diagram of an injection mold for preventing steel deformation (excluding the first mold and the second mold). In the diagram, the insert and the slider are in an unconnected and separated state.

[0024] Figure 3 A three-dimensional diagram of the insert.

[0025] Figure 4 It is a three-dimensional diagram of the second mold.

[0026] Figure 5 It is a three-dimensional diagram of the first mold.

[0027] Figure 6 for Figure 2 Right side view of the center insert (comprising the steel material and the injection-molded part located on the steel material).

[0028] Figure 7 for Figure 6 Cross-sectional view of AA in the figure.

[0029] Figure 8 for Figure 7 Enlarged view of C in the middle. DETAILED DESCRIPTION

[0030] The following is further described in detail through specific implementation methods:

[0031] The figure marks in the drawings of the specification include: first mold 1, second mold 2, driving part 3, slider 4, insert 5, steel material 6, injection molded part 7, glue channel material storage 8, second molding chamber 9, glue inlet 10, second glue inlet flow channel groove 11, first molding chamber 12, glue outlet 13, first glue inlet flow channel groove 14, first protrusion 15, second protrusion 16, second mark 17, first mark 18, fourth mark 19, third mark 20, glue at the first gap 71, glue at the second gap 72.

[0032] The embodiment is basically as shown in the attached Figures 1-8As shown: a kind of injection mold for preventing steel material deformation, including driving element 3, slider 4, insert piece 5, first mold 1 and second mold 2.The driving element 3 in the embodiment is specifically oil cylinder or air cylinder, driving element 3 and slider 4 are all located at the outside of first mold 1 and second mold 2, the piston rod of driving element 3 is connected with slider 4, slider 4 is fixedly connected with insert piece 5 on the side away from driving element 3, insert piece 5 can be inserted between first mold 1 and second mold 2 from the side of the overall structure after the cover of first mold 1 and second mold 2.Insert piece 5 is integrally formed with steel material 6 on the side away from slider 4.The steel material 6 in the embodiment is sheet-shaped, and the number of steel material 6 is two, Figure 3 The thickness of the right end of the steel material 6 is 2-3 mm, specifically 2.35 mm.

[0033] Combining Figure 4 And Figure 5 As shown, the first mold 1 and the second mold 2 form two forming chambers after being closed, specifically, the first mold 1 is provided with a first forming chamber 12, and the second mold 2 is provided with a second forming chamber 9, and the first forming chamber 12 and the second forming chamber 9 are opposite and spliced into a forming chamber after the first mold 1 and the second mold 2 are closed. The side surface of the first mold 1 and the side surface of the second mold 2 are both provided with a slot hole for inserting the insert piece 5, and the slot hole is in communication with the forming chamber.

[0034] The second mold 2 in the embodiment is provided with a glue inlet 10 and a second glue inlet runner slot 11, the first mold 1 is provided with a first glue inlet runner slot 14 and a glue outlet 13 in communication with the first glue inlet runner slot 14, and the glue outlet 13 is in communication with the first forming chamber 12. When the first mold 1 and the second mold 2 are closed, the first glue inlet runner slot 14 on the first mold 1 and the second glue inlet runner slot 11 on the second mold 2 are opposite and spliced to form a feeding runner. Therefore, after the glue enters from the glue inlet 10, it flows along the glue inlet runner, and is injected into the two forming chambers through the two glue outlets 13 respectively. After injection molding, the glue stored in the feeding runner and the glue outlet 13 forms a glue channel storage 8 which can be discarded.

[0035] In the embodiment, the steel material 6 is inserted into the forming chamber through the slot hole, and there is a gap between the steel material 6 and the inner wall of the first forming chamber 12 and between the steel material 6 and the inner wall of the second forming chamber 9. The gap between the side wall of the steel material 6 facing the inner wall of the first forming chamber 12 and the inner wall of the first forming chamber 12 is defined as the first gap, and the gap between the side wall of the steel material 6 facing the inner wall of the second forming chamber 9 and the inner wall of the second forming chamber 9 is defined as the second gap, wherein the glue outlet 13 points (faces) to the second gap.

[0036] The improvement of the embodiment over the prior art is mainly that the distance between the steel material 6 side wall and the forming chamber (the second forming chamber 9) at the gap opposite to the glue outlet 13 (the second gap) is smaller than the distance between the steel material 6 side wall and the forming chamber (the first forming chamber 12) at the other gap (the first gap). In the embodiment, the thickness of the steel material 6 side wall and the forming chamber (the second forming chamber 9) at the second gap is 1.1-1.8 mm, and specifically 1.4 mm. The thickness of the steel material 6 side wall and the forming chamber (the first forming chamber 12) at the first gap is 2.1-2.8 mm, and specifically 2.5 mm.

[0037] Therefore, the distance between the steel material 6 side wall and the forming chamber (the second forming chamber 9) at the second gap is small, and the thickness of the second gap is thin. The distance between the steel material 6 side wall and the forming chamber (the first forming chamber 12) at the first gap is relatively large, and the thickness of the first gap is thick. Therefore, in the embodiment, the distance between the steel material 6 side wall and the forming chamber at the gap opposite to the glue outlet 13 (the second gap) is smaller than the distance between the steel material 6 side wall and the forming chamber at the other gap (the first gap). It can also be described that the thickness of the thin gap is smaller than the thickness of the thick gap. Specifically, the thickness of the thin gap is 1.1-1.8 mm, and specifically 1.4 mm. The thickness of the thick gap is 2.1-2.8 mm, and specifically 2.5 mm.

[0038] Since the thickness of the first gap is greater than the thickness of the second gap, the thickness of the glue at the first gap where the injection molded part 7 (the injection molded part 7 wraps the steel material 6) is greater than the thickness of the glue at the second gap. Therefore, in the embodiment, the distance between the steel material 6 side wall and the forming chamber at the gap opposite to the glue outlet 13 (the second gap) is smaller than the distance between the steel material 6 side wall and the forming chamber at the other gap (the first gap). It can also be described that the thickness of the glue at the gap opposite to the glue outlet 13 (the second gap) is smaller than the thickness of the glue at the other gap (the first gap). Specifically, the thickness of the glue at the gap opposite to the glue outlet 13 (the second gap) is 1.1-1.8 mm, and specifically 1.4 mm. The thickness of the glue at the other gap (the first gap) is 2.1-2.8 mm, and specifically 2.5 mm.

[0039] In the prior art, the thickness at the first gap is 0.9-1.1 mm, and the thickness at the second gap is 2.6-2.8 mm. Compared with the prior art, this embodiment increases the thickness at the first gap (increases the thickness of the glue 71 at the first gap) and reduces the thickness at the second gap (reduces the thickness of the glue 72 at the second gap). At the same time, the thickness at the first gap is greater than the thickness at the second gap, so that the glue on the side of the steel material 6 away from the glue outlet 13 (the first gap) can better support and block the steel material 6. When the glue outlet 13 located at the second gap is discharging glue, even if the side of the steel material 6 is impacted toward the first gap, the steel material 6 is not easy to bend and deform toward the side of the first gap, thereby increasing the service life of the steel material 6 and improving the quality of the injection molded product.

[0040] In addition, for the unlocking handle product, in some embodiments, further speaking, combined with Figures 7-8 As shown, a first protrusion 15 is integrally formed in the first molding cavity 12 of the first mold 1, and a second protrusion 16 is integrally formed in the second molding cavity 9 of the second mold 2. The molded injection molded part 7 is as shown in FIG. Figure 8 As shown, the thickness of the glue on the side of the injection molded part 7 on the steel material 6 is inconsistent. The thickness of the portion of the injection molded part 7 that is in contact with the first protrusion 15 (or the second protrusion 16) is thinner, while the thickness of the portion that is not in contact with the first protrusion 15 (or the second protrusion 16) is thicker. In this embodiment, the thicker portion at the first gap on the right end of the injection molded part 7 ( Figure 8 The thickness of the first gap at the right end of the injection molded part 7 (as shown by the first mark 18) is 2.6-2.8mm, specifically 2.7mm, while the thickness in the prior art here is 1.1mm; the thinner part at the first gap at the right end of the injection molded part 7 (as shown by the second mark 17) is 2.1-2.3mm, specifically 2.2mm, while the thickness in the prior art here is 0.9mm; the thicker part at the second gap at the right end of the injection molded part 7 (as shown by the third mark 20) ​​is 1.6-1.8mm, specifically 1.7mm, while the thickness in the prior art here is 2.9mm; the thinner part at the second gap at the right end of the injection molded part 7 (as shown by the fourth mark 19) is 1.1-1.3mm, specifically 1.2mm, while the thickness in the prior art here is 2.7mm.

[0041] Therefore, by controlling the glue thickness of the injection molded part 7 on both sides of the steel material 6 within the above-mentioned range, the steel material 6 will not deform toward the first gap during actual production injection molding, thereby improving the service life of the steel material 6. At the same time, no holes will appear on the upper surface of the injection molded part 7, thereby ensuring product quality.

[0042] The above only is the embodiment of the present application, and the well-known specific technical solutions and / or common knowledge in the scheme are not described in detail. It should be pointed out that, for those skilled in the art, without departing from the technical solutions of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope claimed in the present application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. An injection mold for preventing steel material deformation, comprising a molding chamber and steel material located in the molding chamber, wherein gaps are formed between two side walls of the steel material and the inner wall of the molding chamber, and a glue outlet is provided on the mold, the glue outlet facing one of the gaps, characterized in that: The distance between the side wall of the steel material and the molding chamber at the gap opposite to the glue outlet is smaller than the distance between the side wall of the steel material and the molding chamber at another gap.

2. The injection mold for preventing steel deformation according to claim 1, characterized in that: The molding chamber is formed by covering the first mold and the second mold.

3. The injection mold for preventing steel deformation according to claim 2, characterized in that: The first mold is provided with a first molding cavity, the second mold is provided with a second molding cavity, and the first molding cavity and the second molding cavity are combined after the first mold and the second mold are covered.

4. The injection mold for preventing steel deformation according to claim 1, characterized in that: The invention comprises a driving member and a sliding block connected with the driving member, wherein the sliding block is connected with an insert, and the steel material is fixedly connected to the insert.

5. The injection mold for preventing steel deformation according to claim 4, characterized in that: The thickness of the steel material is 2-3 mm.

6. The injection mold for preventing steel deformation according to claim 1, characterized in that: The distance between the side wall of the steel material and the inner wall of the molding chamber at the gap opposite to the glue outlet is 1.1-1.8 mm, and the distance between the side wall of the steel material and the inner wall of the molding chamber at the other gap is 2.1-2.8 mm.

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