Injection mold

Abstract

The utility model provides an injection mold, which is used for improving the product quality, and comprises a lower mold assembly which comprises a lower mold part provided with a lower mold cavity, two linkage parts which are arranged on the lower mold part and are respectively positioned on two opposite sides of the lower mold cavity, and a pushing part which is arranged on the lower mold part and is positioned between the two linkage parts; the upper die assembly comprises an upper die body provided with an upper die groove, an abutting piece, an elastic piece and two limiting pieces, the two limiting pieces are both contained in the upper die body and arranged on the two opposite sides of the upper die groove respectively, each limiting piece comprises a limiting body and a reset body, each limiting body is arranged on the upper die body in a sliding mode, and a receding groove is formed in the side, facing the other limiting body, of each limiting body. The two ends of the reset body elastically abut against the sides, deviating from the receding grooves, of the limiting bodies and the upper die piece correspondingly, the abutting-pushing piece is movably arranged on the upper die piece, located between the two limiting bodies and used for stretching into the upper die groove, and the two ends of the elastic piece elastically abut against the sides, deviating from the abutting-pushing part, of the abutting-pushing piece and the upper die piece correspondingly; and the ejector pin movably penetrates through the lower die piece and is used for extending into the lower die groove.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to an injection mold. Background Art

[0002] After a product is formed in an injection mold, it needs to be opened and ejected using an ejector. Due to the adsorption between the mold cavity and the product, the product can adhere to the mold cavity, resulting in a sticking phenomenon where the product cannot be completely removed from the mold or is difficult to remove. During the mold opening process, sticking can cause deformation of the product, resulting in reduced product quality. Utility Model Content

[0003] In view of the above, it is necessary to provide an injection mold to improve product quality.

[0004] The present invention provides an injection mold, comprising:

[0005] A lower mold assembly includes a lower mold member, a pusher, and two linkage members. The lower mold member is provided with a lower mold groove. The two linkage members are both provided on the lower mold member and are respectively located on opposite sides of the lower mold groove. The pusher is provided on the lower mold member and is located between the two linkage members.

[0006] The camming member is a pair of camming members, each of which is adapted to move relative to the other camming member when the camming member is in motion, and the camming member is adapted to move relative to the other camming member when the camming member is in motion.

[0007] The ejector pin is movably provided on the lower mold member and is used to extend into the lower mold groove; wherein,

[0008] When the mold is closed, the pushing member pushes the resisting member away from the upper mold groove to compress the elastic member, and the two linkage members are respectively inserted into the two limiting bodies, and the two reset bodies elastically support the two limiting bodies close to each other, so that the two limiting bodies respectively clamp the two linkage members, and the two ends of the resisting member are respectively extended into the two avoidance grooves, and the upper mold groove and the lower mold groove are docked and cooperated to form a molding cavity for molding products. When the mold is opened, the two linkage members push the two limiting bodies away from each other to compress the two reset bodies, so that the resisting member is disengaged from the two avoidance grooves, and the elastic member pushes the resisting member close to the upper mold groove, and the resisting part is extended into the upper mold groove to push the product out of the upper mold groove.

[0009] In some embodiments, the upper mold comprises:

[0010] The upper mold core is provided with the upper mold groove, the movable groove, the through-hole, two limiting holes and the pushing hole, the upper mold groove and the movable groove are respectively opened at opposite sides of the upper mold core, the through-hole is opened at the bottom wall of the movable groove and connected to the upper mold groove, the two limiting holes are respectively arranged at opposite sides of the through-hole and both pass through the bottom wall of the movable groove, the pushing hole passes through the bottom wall of the movable groove and is located between the two limiting holes, the pushing piece, the elastic piece and the two limiting pieces are all accommodated in the movable groove, the pushing portion is used to pass through the through-hole and extend into the upper mold groove, the pushing piece is used to insert into the pushing hole to push the pushing piece, and the two linkage pieces are used to pass through the two limiting holes to insert into the two limiting bodies;

[0011] The cover body is detachably connected to the upper mold core and covers the movable groove, and the cover body abuts against one end of the elastic member.

[0012] In some embodiments, each of the limiting bodies includes a main body, a bearing part, and a limiting part. The main body is slidably arranged in the movable groove and is provided with a through hole corresponding to the limiting hole. The bearing part is connected to the surface of the main body facing the push member and is surrounded by the main body to form the avoidance groove. The limiting part is connected to the side wall of the through hole away from the avoidance groove. One end of each of the linkage parts is connected to the lower mold part, and the other end of each of the linkage parts is provided with a clamping part adapted to the limiting part. When the mold is closed, the two clamping parts are inserted into the two through holes, and when the mold is opened, the two clamping parts push the two limiting parts away from each other.

[0013] In some embodiments, the main body, the limiting portion and the bearing portion are an integrated structure.

[0014] In some embodiments, the surface of the limiting portion facing the pushing member is an arc-shaped structure.

[0015] In some embodiments, the push member includes:

[0016] A mounting body, abutting against the elastic member;

[0017] A push body connected to the mounting body, wherein the push portion is provided at an end of the push body away from the mounting body;

[0018] The stopper is connected to the mounting body and is movably accommodated in the pushing hole. The pushing member is used to be inserted into the pushing hole to push the stopper.

[0019] In some embodiments, the push body protrudes from the mounting body in a direction away from the push portion, and the elastic member is sleeved on the push body. The cover body includes a fixed portion and two cover portions, the fixed portion is detachably connected to the upper mold core, the two cover portions are both connected to the fixed portion and are spaced apart in the movable groove to stop the mounting body, and the elastic member elastically resists the fixed portion and is located between the two cover portions.

[0020] In some embodiments, there are two of the stopper, the pusher, and the push hole, and the two push holes are respectively arranged on opposite sides of the through hole, and the two stopper, the two pushers, and the two through holes correspond to each other one by one.

[0021] In some embodiments, the two pushing holes and the two limiting holes are symmetrically arranged with the penetration hole as the center.

[0022] In some embodiments, the product includes a metal part and a plastic part connected to the metal part, the lower mold part includes a lower mold core and a slider, the lower mold core is provided with the lower mold groove and a sliding groove connected to the lower mold groove, the slider is slidably arranged in the sliding groove, and is used to press the metal part to the side wall of the sliding groove and allow a part of the metal part to extend into the lower mold groove, and the ejector pin is movably arranged in the lower mold core.

[0023] When the above-mentioned injection mold is closed, the pushing member pushes the resisting member away from the upper mold groove to compress the elastic member, the two linkage members are inserted into the two limiting bodies, and the two reset bodies elastically support the two limiting bodies close to each other, so that the two limiting bodies clamp the two linkage members, and the two ends of the resisting member extend into the two avoidance grooves, and the upper mold groove and the lower mold groove are connected to form a molding cavity. When the above-mentioned injection mold is opened, the two linkage members push the two limiting bodies away from each other to compress the two reset bodies, so that the resisting member disengages from the two avoidance grooves, and the elastic member pushes the resisting member close to the upper mold groove, and the resisting part extends into the upper mold groove to push the product out of the upper mold groove, which can avoid the product from sticking to the upper mold groove to the greatest extent, reduce the deformation of the product, and thus improve the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of a product applicable to the injection mold of the embodiment of the present utility model.

[0025] Figure 2 It is a schematic structural diagram of the injection mold provided by the embodiment of the present utility model.

[0026] Figure 3 It is Figure 2 a disassembled schematic diagram of the injection mold shown.

[0027] Figure 4 It is Figure 2 a sectional schematic diagram of the injection mold shown along the A-A direction.

[0028] Figure 5 It is Figure 3 a schematic structural diagram of the limit body in the injection mold shown.

[0029] Figure 6 It is Figure 2 a sectional schematic diagram of the injection mold shown along the B-B direction.

[0030] Figure 7 It is Figure 3 a schematic structural diagram of the upper mold core in the injection mold shown.

[0031] Figure 8 It is Figure 3 a schematic structural diagram of the upper pushing member in the injection mold shown.

[0032] Figure 9 It is Figure 4 a sectional schematic diagram of the injection mold shown when it is in the open mold state.

[0033] Figure 10 It is Figure 9 a sectional schematic diagram of the injection mold shown during the mold closing process.

[0034] Figure 11 It is Figure 9 a sectional schematic diagram of the injection mold shown during the mold opening process.

[0035] Description of main component symbols

[0036] Injection mold 100

[0037] Molding cavity 100a

[0038] Injection channel 100b

[0039] Lower mold assembly 110

[0040] Lower mold part 111

[0041] Lower die cavity 111a

[0042] Lower die core 1111

[0043] Sliding groove 1111a

[0044] Slider 1112

[0045] Pushing part 112

[0046] Linking part 113

[0047] Clamping part 113a

[0048] Upper die assembly 120

[0049] Upper die part 121

[0050] Upper die cavity 121a

[0051] Upper die core 1211

[0052] Moving groove 1211a

[0053] Penetrating hole 1211b

[0054] Limit hole 1211c

[0055] Pushing hole 1211d

[0056] Cover body 1212

[0057] Fixing part 1212a

[0058] Covering part 1212b

[0059] Pushing part 122

[0060] Pushing part 122a

[0061] Mounting body 1221

[0062] Pushing body 1222

[0063] Stopping body 1223

[0064] Elastic part 123

[0065] Limiting part 124

[0066] Limiting body 1241

[0067] Avoidance groove 1241a

[0068] Main body part 1241b

[0069] Bearing part 1241c

[0070] Limiting part 1241d

[0071] Through-hole 1241e

[0072] Reset body 1242

[0073] Ejector pin 130

[0074] Product 200

[0075] Metal part 210

[0076] Plastic part 220 Specific implementation manners

[0077] The following details the implementation manners of the present utility model. Examples of the implementation manners are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The implementation manners described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0078] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present utility model can be understood according to specific circumstances.

[0079] The following details each embodiment of this case with reference to the drawings.

[0080] Please refer to Figure 1 , Figure 1 , which shows a product 200 applicable to the injection mold of the embodiment of the present utility model. Specifically, the product 200 includes a plastic part 220 that is generally rectangular parallelepiped and a metal part 210 that is generally L-shaped and partially embedded in the plastic part 220.

[0081] Please refer to Figure 2 and Figure 3 . The embodiment of the present utility model provides an injection mold 100, which includes a lower mold assembly 110, an upper mold assembly 120, and an ejector pin 130 for molding the product 200. Specifically, the metal part 210 is placed in the injection mold 100, and the plastic part 220 connected to the metal part 210 is molded through the injection mold 100.

[0082] Please refer to Figures 3 to 5In some embodiments, the lower mold assembly 110 includes a lower mold part 111, a pushing part 112 and two linkage parts 113. The lower mold part 111 is provided with a lower mold groove 111a. The two linkage parts 113 are both provided on the lower mold part 111 and are respectively located on opposite sides of the lower mold groove 111a. The pushing part 112 is provided on the lower mold part 111 and is located between the two linkage parts 113. The upper mold assembly 120 includes an upper mold part 121, a push part 122, an elastic part 123 and two limit parts 124. The upper mold part 121 is provided with an upper mold groove 121a. The two limit parts 124 are both accommodated in the upper mold part 121 and are respectively arranged on opposite sides of the upper mold groove 121a. Each limit part 124 includes a limit body 1241 and a reset body 1242. Each limit body 1241 is slidably provided on the upper mold part 121 and is provided with a avoidance groove 1241a on one side facing the other limit body 1241. One end of the reset body 1242 elastically abuts against the limit The body 1241 is located on a side facing away from the avoidance groove 1241a, and the other end of the reset body 1242 is elastically abutted against the upper mold member 121. The push member 122 is movably provided on the upper mold member 121, and the movement direction of the push member 122 is perpendicular to the sliding direction of the limiting body 1241. The push member 122 is located between the two limiting bodies 1241 and is provided with a push portion 122a for extending into the upper mold groove 121a. One end of the elastic member 123 is elastically abutted against the side of the push member 122 facing away from the push portion 122a, and the other end of the elastic member 123 is elastically abutted against the upper mold member 121. The ejector pin 130 is movably provided through the lower mold member 111 and is used to extend into the lower mold groove 111a to push the product 200 out of the lower mold groove 111a.

[0083] In this embodiment, the elastic member 123 and the restoring body 1242 are both springs, and the end surface shape of the pushing portion 122 a is adapted to the surface shape of the plastic member 220 .

[0084] When the above-mentioned injection mold 100 is closed, the pushing member 112 pushes the resisting member 122 away from the upper mold groove 121a to compress the elastic member 123, and the two linkage members 113 are respectively inserted into the two limiting bodies 1241, and the two reset bodies 1242 elastically push the two limiting bodies 1241 close to each other, so that the two limiting bodies 1241 respectively clamp the two linkage members 113, and the two ends of the resisting member 122 are respectively extended into the two avoidance grooves 1241a, and the upper mold groove 121a and the lower mold groove 111a are docked and matched to form a molding cavity 100a for molding the product 200. When the above-mentioned injection mold 100 is opened, the two linkage parts 113 push the two limiting bodies 1241 away from each other to compress the two reset bodies 1242, so that the push member 122 disengages from the two avoidance grooves 1241a, and the elastic part 123 pushes the push member 122 close to the upper mold groove 121a, and makes the push part 122a extend into the upper mold groove 121a to push the product 200 out of the upper mold groove 121a.

[0085] See Figure 6After the injection mold 100 is closed, the upper mold 121 and the lower mold 111 are connected to form an injection channel 100b connected to the molding cavity 100a, so that glue enters the molding cavity 100a from the injection channel 100b to form the plastic part 220.

[0086] See Figure 3 、 Figure 4 and Figure 7 In some embodiments, the upper mold 121 includes an upper mold core 1211 and a cover body 1212. The upper mold core 1211 is provided with an upper mold groove 121a, a movable groove 1211a, a through hole 1211b, two limiting holes 1211c and a pushing hole 1211d. The upper mold groove 121a and the movable groove 1211a are respectively provided on opposite sides of the upper mold core 1211. The through hole 1211b is provided on the bottom wall of the movable groove 1211a and is connected to the upper mold groove 121a. The two limiting holes 1211c are respectively provided on opposite sides of the through hole 1211b and both pass through the bottom wall of the movable groove 1211a. The pushing hole 1211d passes through the bottom wall of the movable groove 1211a and is located between the two limiting holes 1211c. The push member 122, the elastic member 123, and the two limiting members 124 are all accommodated in the movable groove 1211a. The pushing portion 122a is used to pass through the through hole 1211b and extend into the upper mold groove 121a. The pushing member 112 is used to be inserted into the pushing hole 1211d to push the pushing member 122. The two linkage members 113 are used to pass through the two limiting holes 1211c and insert into the two limiting bodies 1241. The cover body 1212 is detachably connected to the upper mold core 1211 and covers the movable groove 1211a. The cover body 1212 abuts against one end of the elastic member 123.

[0087] In this embodiment, the cover body 1212 is detachably connected to the upper mold core 1211 through a plurality of bolts.

[0088] See Figures 3 to 5 In some embodiments, each limiting body 1241 includes a main body 1241b, a bearing portion 1241c, and a limiting portion 1241d. The main body 1241b is slidably disposed in the movable groove 1211a and is provided with a through hole 1241e corresponding to the limiting hole 1211c. The bearing portion 1241c is connected to the surface of the main body 1241b facing the push member 122 and is surrounded by the main body 1241b to form a avoiding groove 1241a. The limiting portion 1241d is connected to the side wall of the through hole 1241e away from the avoiding groove 1241a. One end of each linkage member 113 is connected to the lower mold 111, and the other end of each linkage member 113 is provided with a clamping portion 113a adapted to the limiting portion 1241d. When the mold is closed, the two holding portions 113a are inserted into the two through holes 1241e, and when the mold is opened, the two holding portions 113a push the two limiting portions 1241d away from each other.

[0089] In this embodiment, each clamping portion 113a is disposed on the side of the linkage member 113 away from the pushing member 112 and at the top of the linkage member 113.

[0090] Please refer to Figure 5 , in some embodiments, the main body portion 1241b, the limiting portion 1241d, and the bearing portion 1241c are of an integral structure, which is beneficial to reducing the processing difficulty of the limiting body 1241.

[0091] In some embodiments, the surface of the limiting portion 1241d facing the pushing member 122 is an arc structure, so that the limiting portion 1241d can play a guiding role in the process of the clamping portion 113a being inserted into the through hole 1241e.

[0092] Please refer to Figure 4 and Figure 8 , in some embodiments, the pushing member 122 includes a mounting body 1221, a pushing body 1222, and a stopping body 1223. The mounting body 1221 abuts against the elastic member 123, the pushing body 1222 is connected to the mounting body 1221, and the pushing portion 122a is disposed at one end of the pushing body 1222 away from the mounting body 1221. The stopping body 1223 is connected to the mounting body 1221 and is movably received in the pushing hole 1211d. The pushing member 112 is used to be inserted into the pushing hole 1211d to push the stopping body 1223.

[0093] Therefore, through the above settings, the processing difficulty of the pushing member 122 is low, which is beneficial to reducing the manufacturing cost of the pushing member 122.

[0094] In some embodiments, the pushing body 1222 protrudes from the mounting body 1221 in the direction away from the pushing portion 122a, and the elastic member 123 is sleeved on the pushing body 1222. The cover body 1212 includes a fixing portion 1212a and two cover portions 1212b. The fixing portion 1212a is detachably connected to the upper die insert 1211, and the two cover portions 1212b are both connected to the fixing portion 1212a and are spaced apart in the moving groove 1211a for stopping the mounting body 1221. The elastic member 123 elastically abuts against the fixing portion 1212a and is located between the two cover portions 1212b.

[0095] In this embodiment, the mounting body 1221 is generally in a plate-like structure, the pushing body 1222 is in a cylindrical shape, and the mounting body 1221 is fixedly sleeved on the middle of the pushing body 1222.

[0096] In some embodiments, there are two stopping bodies 1223, two pushing members 112, and two pushing holes 1211d. The two pushing holes 1211d are respectively disposed on opposite sides of the through hole 1211b, and the two stopping bodies 1223, the two pushing members 112, and the two through holes 1211b respectively correspond one by one.

[0097] Therefore, through the above arrangement, the contact points between the lower mold 111 and the push member 122 are increased, which is beneficial to improving the stability of the movement of the push member 122 driven by the lower mold 111.

[0098] In some embodiments, the two pushing holes 1211d and the two limiting holes 1211c are symmetrically arranged with the through hole 1211b as the center, which can further improve the stability of the movement of the pushing member 122.

[0099] See Figure 3 In some embodiments, the lower mold 111 includes a lower mold core 1111 and a slider 1112. The lower mold core 1111 is provided with a lower mold groove 111a and a sliding groove 1111a connected to the lower mold groove 111a. The slider 1112 is slidably arranged in the sliding groove 1111a, and is used to press the metal part 210 to the side wall of the sliding groove 1111a, and allow a part of the metal part 210 to extend into the lower mold groove 111a. The ejector pin 130 is movably arranged in the lower mold core 1111.

[0100] During operation, the slider 1112 can be driven to slide relative to the lower mold core 1111 to move away from the lower mold groove 111 a, providing a movable space for the placement of the metal part 210, which is beneficial to improving the mold closing efficiency of the injection mold 100.

[0101] See Figure 9 , Figure 9 Schematic diagram of the injection mold 100 in the mold opening state. Specifically, the elastic member 123 elastically abuts against the mounting body 1221, the pushing body 1222 passes through the through-hole 1211b and extends to the upper mold groove 121a, the two stoppers 1223 are accommodated in the two pushing holes 1211d, and the two reset bodies 1242 elastically abut the two main bodies 1241b, causing the two supporting portions 1241c to abut against opposite ends of the mounting body 1221.

[0102] When the above-mentioned injection mold 100 is closed, the pushing member 112 is inserted into the pushing hole 1211d and pushes the stopper 1223 away from the upper mold groove 121a, and the mounting body 1221 compresses the elastic member 123, and the two holding portions 113a are inserted into the two through holes 1241e from the two limiting holes 1211c. When the mounting body 1221 moves upward to correspond to the two avoiding grooves 1241a in the horizontal direction, the above-mentioned injection mold 100 is formed as follows. Figure 10 As shown in the state, the two reset bodies 1242 elastically press the two main body parts 1241b to move closer to each other, so that the two limit parts 1241d clamp the two clamping parts 113a, and the two ends of the mounting body 1221 are accommodated in the two avoidance grooves 1241a, and the upper mold groove 121a and the lower mold groove 111a are connected to form the molding cavity 100a, so that the above-mentioned injection mold 100 is formed as shown. Figure 4 The status shown.

[0103] When the above-mentioned injection mold 100 is opened, the two clamping portions 113a move downward and push the two limiting portions 1241d, so that the two limiting bodies 1241 move away from each other, and the two main body portions 1241b compress the two reset bodies 1242 until both ends of the mounting body 1221 disengage from the two avoiding grooves 1241a. At this time, the above-mentioned injection mold 100 forms a state as shown in Figure 11 the figure. Subsequently, the elastic member 123 pushes the mounting body 1221 downward to approach the upper mold cavity 121a, and the pushing portion 122a extends into the upper mold cavity 121a to push the plastic part 220 out of the upper mold cavity 121a.

[0104] Therefore, the above-mentioned injection mold 100 can avoid the sticking of the plastic part 220 in the product 200 to the upper mold cavity 121a to the greatest extent, reduce the deformation of the product 200, and thus improve the quality of the product 200.

[0105] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to cover all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model.

[0106] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model.

Claims

1. An injection mold, characterized in that, include: A lower mold assembly includes a lower mold member, a pusher, and two linkage members. The lower mold member is provided with a lower mold groove. The two linkage members are both provided on the lower mold member and are respectively located on opposite sides of the lower mold groove. The pusher is provided on the lower mold member and is located between the two linkage members. The camming member is a pair of camming members, each of which is adapted to move relative to the other camming member when the camming member is in motion, and the camming member is adapted to move relative to the other camming member when the camming member is in motion. The ejector pin is movably provided on the lower mold member and is used to extend into the lower mold groove; wherein, When the mold is closed, the pushing member pushes the resisting member away from the upper mold groove to compress the elastic member, and the two linkage members are respectively inserted into the two limiting bodies, and the two reset bodies elastically support the two limiting bodies close to each other, so that the two limiting bodies respectively clamp the two linkage members, and the two ends of the resisting member are respectively extended into the two avoidance grooves, and the upper mold groove and the lower mold groove are docked and cooperated to form a molding cavity for molding products. When the mold is opened, the two linkage members push the two limiting bodies away from each other to compress the two reset bodies, so that the resisting member is disengaged from the two avoidance grooves, and the elastic member pushes the resisting member close to the upper mold groove, and the resisting part is extended into the upper mold groove to push the product out of the upper mold groove.

2. The injection mold according to claim 1, characterized in that, The upper mold comprises: The upper mold core is provided with the upper mold groove, the movable groove, the through-hole, two limiting holes and the pushing hole, the upper mold groove and the movable groove are respectively opened at opposite sides of the upper mold core, the through-hole is opened at the bottom wall of the movable groove and connected to the upper mold groove, the two limiting holes are respectively arranged at opposite sides of the through-hole and both pass through the bottom wall of the movable groove, the pushing hole passes through the bottom wall of the movable groove and is located between the two limiting holes, the pushing piece, the elastic piece and the two limiting pieces are all accommodated in the movable groove, the pushing portion is used to pass through the through-hole and extend into the upper mold groove, the pushing piece is used to insert into the pushing hole to push the pushing piece, and the two linkage pieces are used to pass through the two limiting holes to insert into the two limiting bodies; The cover body is detachably connected to the upper mold core and covers the movable groove, and the cover body abuts against one end of the elastic member.

3. The injection mold according to claim 2, wherein: Each of the limiting bodies includes a main body portion, a bearing portion, and a limiting portion. The main body portion is slidably disposed in the movable groove and is provided with a through hole corresponding to the limiting hole. The bearing portion is connected to the surface of the main body portion facing the pushing member, and forms the avoidance groove with the main body portion. The limiting portion is connected to the side wall of the through hole away from the avoidance groove. One end of each linkage member is connected to the lower mold member, and the other end of each linkage member is provided with a clamping portion adapted to the limiting portion. Among them, When the mold is closed, the two clamping portions are inserted into the two through holes. When the mold is opened, the two clamping portions push the two limiting portions away from each other.

4. The injection mold according to claim 3, characterized in that, The main body portion, the limiting portion, and the bearing portion are of an integral structure.

5. The injection mold according to claim 3, wherein, The surface of the limiting portion facing the pushing member is an arc structure.

6. The injection mold according to claim 2, characterized in that, The pushing member includes: An installation body that abuts against the elastic member; A pushing body connected to the installation body, and the pushing portion is provided at one end of the pushing body away from the installation body; A stopping body connected to the installation body and movably received in the pushing hole. The pushing member is used to insert into the pushing hole to push the stopping body.

7. The injection mold according to claim 6, wherein The pushing body protrudes from the installation body in a direction away from the pushing portion, and the elastic member is sleeved on the pushing body; The cover body includes a fixing portion and two cover portions. The fixing portion is detachably connected to the upper mold core. The two cover portions are both connected to the fixing portion and are spaced in the movable groove for stopping the installation body. The elastic member elastically abuts against the fixing portion and is located between the two cover portions.

8. The injection mold according to claim 6, wherein There are two stopping bodies, two pushing members, and two pushing holes. The two pushing holes are respectively disposed on opposite sides of the through hole. The two stopping bodies, the two pushing members, and the two through holes respectively correspond to each other one by one.

9. The injection mold according to claim 8, wherein The two pushing holes and the two limiting holes are symmetrically arranged with the through hole as the center.

10. The injection mold according to claim 1, wherein the product includes a metal part and a plastic part connected to the metal part. The injection mold is characterized in that The lower mold member includes a lower mold core and a slider. The lower mold core is provided with the lower mold groove and a sliding groove communicating with the lower mold groove. The slider is slidably disposed in the sliding groove for pressing the metal part against the side wall of the sliding groove and enabling a part of the metal part to extend into the lower mold groove. The ejector pin movably penetrates through the lower mold core.

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