Injection mold for armrest connector

Abstract

The utility model relates to the technical field of injection molds, in particular to an injection mold for a handrail connector, which is characterized by comprising an upper core plate, a lower core plate and an upper inserting rod, a rectangular groove is arranged on the lower end face of the upper core plate, the upper core plate and the lower core plate are arranged up and down, and a forming mold cavity is defined between the rectangular groove and the upper surface of the lower core plate. A rectangular groove is formed in the lower core plate, a rectangular protruding block is fixedly arranged on the inner top face of the rectangular groove, one side edge of the rectangular protruding block coincides with one side edge of the rectangular groove, the lower end face of the rectangular protruding block is higher than the lower end face of the upper core plate, a plurality of installation protruding blocks are arranged on the upper end face of the lower core plate, and a plurality of inserting holes are formed in the upper end face of the upper core plate. The upper inserting rods are inserted into the inserting holes, and the bottom ends of the upper inserting rods abut against the upper end face of the lower core plate. According to the utility model, the rectangular handrail connector which is provided with the rectangular connecting groove, the first mounting hole and the second mounting hole can be conveniently formed in an injection molding manner, so that the handrail connector meets the actual mounting requirements, and the handrail connector can be effectively ensured to play a more stable connecting role in use.

Description

Technical Field

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

[0002] An injection mold is a tool used to produce plastic products and also to give them a complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain parts with complex shapes. Specifically, it refers to the process of injecting heated and molten plastic into the mold cavity under high pressure by an injection molding machine. After cooling and solidification, a molded product is obtained. It is suitable for mass production and molding processing fields such as products with complex shapes.

[0003] The handrail connector is a connecting part used in the installation of handrails. In order to ensure the stability of the handrail connection, it needs to be made into a structural shape that meets the actual installation requirements. Therefore, how to injection mold a handrail connector that meets the actual installation requirements is the technical problem to be solved by this application. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide an injection mold for an armrest connector that is easy to injection mold and has a rectangular connecting groove, a first mounting hole and a second mounting hole and is rectangular in shape, so that it meets actual installation requirements and can effectively ensure that the armrest connector plays a more stable connection role when in use.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: an injection mold for an armrest connector, comprising an upper core plate, a lower core plate and an upper insert rod, the lower end surface of the upper core plate is provided with a rectangular groove, the upper core plate and the lower core plate are arranged up and down, and the rectangular groove and the upper surface of the lower core plate are enclosed to form a molding cavity for molding the armrest connector, a rectangular protrusion is fixed on the top surface of the rectangular groove, one side edge of the rectangular protrusion coincides with one side edge of the rectangular groove and the lower end surface of the rectangular protrusion is higher than the lower edge of the upper core plate The end face is used to form a rectangular connecting groove running through one side surface of the upper end face of the handrail connector, a plurality of mounting protrusions are fixedly provided on the upper end face of the lower core plate and are used to form a plurality of first mounting holes communicating with the rectangular connecting groove on the lower end face of the handrail connector, a plurality of sockets communicating with the rectangular groove and adapted to the upper plug rod are provided on the upper end face of the upper core plate, a plurality of upper plug rods are inserted into the corresponding sockets and the bottom ends of the upper plug rods are abutted against the upper end face of the lower core plate and are used to form a plurality of second mounting holes running through the upper and lower ends of the handrail connector.

[0006] Furthermore, the jack is arranged at an angle, and the bottom end surface of the upper insertion rod is an inclined plane.

[0007] Furthermore, two insertion holes are provided on the left and right sides of the rectangular groove on the upper core plate, and there are two mounting protrusions.

[0008] Furthermore, the mounting protrusion includes a first cylindrical section and a first conical section arranged upper and lower, the upper outer diameter of the first conical section is smaller than the lower outer diameter of the first conical section, and the outer diameter of the first cylindrical section is consistent with the upper outer diameter of the first conical section.

[0009] Furthermore, the upper insertion rod includes a second cylindrical section, a second conical section and a third cylindrical section arranged in sequence from bottom to top, the outer diameter of the third cylindrical section is consistent with the outer diameter of the upper end of the second conical section, the outer diameter of the upper end of the second conical section is larger than the outer diameter of the lower end of the second conical section, and the outer diameter of the second cylindrical section is consistent with the outer diameter of the lower end of the second conical section.

[0010] Furthermore, a plurality of hollow protrusions are fixedly provided on the upper end surface of the lower core plate and are used to form a plurality of hollow grooves on the lower end surface of the handrail connector, and the plurality of hollow protrusions are arranged in a U shape.

[0011] Furthermore, it also includes multiple lower blocking rods. The lower core plate is provided with multiple through holes that are connected to the forming cavity and adapted to the lower blocking rods. The multiple lower blocking rods are respectively inserted into the corresponding multiple through holes and are used to block the through holes.

[0012] Furthermore, a positioning mechanism is provided between the upper core plate and the lower core plate, and the positioning mechanism includes a positioning block and a positioning groove. A plurality of positioning grooves are fixedly provided on the lower end surface of the upper core plate, and a plurality of positioning blocks are fixedly provided on the upper end surface of the lower core plate. The positioning blocks are adapted to the positioning grooves, and the positioning blocks can be detachably inserted into the positioning grooves.

[0013] Furthermore, the upper inner surface of the rectangular groove is a first inclined surface and is used to form a second inclined surface on the upper outer surface of the handrail connector. The first inclined surface is inclined upward and toward one side of the rectangular protrusion.

[0014] Furthermore, the number of the molding cavities is two.

[0015] From the above description, it can be seen that the injection mold for the armrest connector provided by the utility model has the following beneficial effects: through the coordinated use of the upper core plate, the lower core plate and the upper insert rod, and through the setting of the rectangular groove, the rectangular protrusion and the mounting protrusion, it is convenient to injection mold an armrest connector with a rectangular connecting groove, a first mounting hole and a second mounting hole and a rectangular shape. In this way, an armrest connector that meets actual installation requirements can be injection molded, which can effectively ensure that the armrest connector plays a more stable connection role when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of an injection mold for an armrest connector of the present utility model.

[0017] Figure 2 This is a schematic diagram of the internal structure of an injection mold for an armrest connector of the utility model.

[0018] Figure 3 Schematic diagram of the three-dimensional structure of the upper core plate.

[0019] Figure 4 Schematic diagram of the structure of the upper core plate.

[0020] Figure 5 Schematic diagram of the three-dimensional structure of the lower core plate.

[0021] Figure 6 for Figure 5 A local enlarged schematic diagram of point A in the middle.

[0022] Figure 7 It is a schematic diagram of the local three-dimensional structure of the upper insertion rod.

[0023] Figure 8 This is a schematic diagram of the three-dimensional structure of the handrail connector from one angle.

[0024] Figure 9 This is a schematic diagram of the three-dimensional structure of the handrail connector from another angle.

[0025] In the figure: 1-upper core plate; 11-rectangular groove; 12-rectangular protrusion; 13-insertion hole; 14-first inclined surface; 2-lower core plate; 21-mounting protrusion; 211-first cylindrical section; 212-first truncated cone section; 22-hollow protrusion; 23-through hole; 3-upper plug rod; 31-inclined plane; 32-second cylindrical section; 33-second truncated cone section; 34-third cylindrical section; 4-molding cavity; 5-handrail connector; 51-rectangular connecting groove; 52-first mounting hole; 53-second mounting hole; 54-hollow groove; 55-second inclined surface; 6-lower blocking rod; 7-positioning mechanism; 71-positioning block; 72-positioning groove. DETAILED DESCRIPTION

[0026] The present invention is further described below through specific implementation methods.

[0027] like Figures 1 to 9As shown, the utility model is an injection mold for an armrest connector, comprising an upper core plate 1, a lower core plate 2 and an upper insert rod 3, the lower end surface of the upper core plate 1 is provided with a rectangular groove 11, the upper core plate 1 and the lower core plate 2 are arranged up and down, and the rectangular groove 11 and the upper surface of the lower core plate 2 are surrounded to form a molding cavity 4 for molding the armrest connector 5, the top surface of the rectangular groove 11 is fixed with a rectangular protrusion 12, one side edge of the rectangular protrusion 12 coincides with one side edge of the rectangular groove 11 and the lower end surface of the rectangular protrusion 12 is higher than the lower end surface of the upper core plate 1 and is used to make the armrest The upper end face of the connector 5 is formed with a rectangular connecting groove 51 passing through one side surface thereof, the upper end face of the lower core plate 2 is fixed with a plurality of mounting protrusions 21 and is used to form a plurality of first mounting holes 52 on the lower end face of the armrest connector 5 that are in communication with the rectangular connecting groove 51, the upper end face of the upper core plate 1 is provided with a plurality of sockets 13 that are in communication with the rectangular groove 11 and are adapted to the upper insertion rod 3, a plurality of the upper insertion rods 3 are inserted into the corresponding sockets 13 and the bottom ends of the upper insertion rods 3 are in contact with the upper end face of the lower core plate 2 and are used to form a plurality of second mounting holes 53 passing through its upper and lower ends on the armrest connector 5.

[0028] By using the upper core plate 1, the lower core plate 2 and the upper insert rod 3 in coordination, and by setting the rectangular groove 11, the rectangular protrusion 12 and the mounting protrusion 21, it is convenient to injection mold the handrail connector 5 having a rectangular connecting groove 51, a first mounting hole 52 and a second mounting hole 53 and in a rectangular shape. In this way, the handrail connector 5 that meets the actual installation requirements can be injection molded, which can effectively ensure that the handrail connector plays a more stable connection role when in use.

[0029] Correspondingly, the socket 13 is tilted, and the bottom end surface of the upper insertion rod 3 is an inclined plane 31. As a result, the upper insertion rod 3 is also installed at an angle, so that the second mounting hole 53 that is tilted can be formed on the armrest connector 5, thereby facilitating locking and fixing the locking screw from an inclined direction.

[0030] The upper core plate 1 is provided with two jacks 13 on the left and right sides of the rectangular groove 11. Correspondingly, two second mounting holes 53 are formed on the left and right sides of the armrest connector 5. There are two mounting protrusions 21. Correspondingly, two first mounting holes 52 can be formed on the lower end surface of the armrest connector 5.

[0031] Correspondingly, the mounting protrusion 21 includes a first cylindrical section 211 and a first conical section 212 arranged upper and lower. The outer diameter of the upper end of the first conical section 212 is smaller than the outer diameter of the lower end of the first conical section 212. The outer diameter of the first cylindrical section 211 is consistent with the outer diameter of the upper end of the first conical section 212. In this way, the first mounting hole 52 can have a first cylindrical hole and a first conical hole arranged upper and lower to facilitate the installation of the locking screw.

[0032] Correspondingly, the upper insertion rod 3 includes a second cylindrical section 32, a second conical section 33 and a third cylindrical section 34 arranged in sequence from bottom to top, the outer diameter of the third cylindrical section 34 is consistent with the outer diameter of the upper end of the second conical section 33, the outer diameter of the upper end of the second conical section 33 is larger than the outer diameter of the lower end of the second conical section 33, and the outer diameter of the second cylindrical section 32 is consistent with the outer diameter of the lower end of the second conical section 33, thereby enabling the second mounting hole 53 to have a second cylindrical hole, a second conical hole and a third cylindrical hole arranged in sequence from bottom to top, and the inner diameter of the third cylindrical hole is larger than the inner diameter of the second cylindrical hole to facilitate the installation of the locking screw.

[0033] The upper end surface of the lower core plate 2 is fixed with a plurality of hollow protrusions 22 and is used to form a plurality of hollow grooves 54 on the lower end surface of the armrest connector 5. The plurality of hollow protrusions 22 are arranged in a U shape, which is beneficial to saving the overall injection molding material and also makes the overall weight of the armrest connector 5 lighter.

[0034] In addition, it also includes a plurality of lower blocking rods 6. The lower core plate 2 is provided with a plurality of through holes 23 that are communicated with the molding cavity 4 and adapted to the lower blocking rods 6. The plurality of lower blocking rods 6 are respectively inserted into the corresponding plurality of through holes 23 and used to seal the through holes 23. The through holes 23 are blocked by the lower blocking rods 6 to ensure the closedness of the molding cavity 4. At the same time, after the injection molding is completed, the lower blocking rods 6 can be separated from the through holes 23 so that the through holes 23 are in an open state to facilitate heat dissipation.

[0035] In addition, a positioning mechanism 7 is provided between the upper core plate 1 and the lower core plate 2. The positioning mechanism 7 includes a positioning block 71 and a positioning groove 72. The lower end surface of the upper core plate 1 is fixed with a plurality of positioning grooves 72, and the upper end surface of the lower core plate 2 is fixed with a plurality of positioning blocks 71. The positioning blocks 71 are adapted to the positioning grooves 72, and the positioning blocks 71 are detachably inserted into the positioning grooves 72. Preferably, the positioning grooves 72 are provided at the four corners of the lower end surface of the upper core plate 1 and the middle of the two long sides, and the positioning blocks 71 are fixed at the four corners of the upper end surface of the lower core plate 2 and the middle of the two long sides, so as to effectively ensure the stability of the assembly between the upper core plate 1 and the lower core plate 2.

[0036] The upper inner surface of the rectangular groove 11 is a first inclined surface 14 and is used to form a second inclined surface 55 on the upper outer surface of the armrest connector 5 to better meet actual installation and use requirements. Preferably, the first inclined surface 14 is inclined upward and toward one side of the rectangular protrusion 12.

[0037] Preferably, the number of the molding cavities 4 is two, thereby facilitating molding two of the handrail connectors 5 at one time.

[0038] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made and that such a development effort may be complex and time-consuming, but would be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0039] The above are only some specific implementation methods of the present invention, but the design concept of the present invention is not limited to this. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. An injection mold for an armrest connector, characterized in that: The top end face of the armrest connector is fixed with a rectangular protrusion, one side edge of the rectangular protrusion coincides with one side edge of the rectangular groove, and the lower end face of the rectangular protrusion is higher than the lower end face of the upper core plate and is used to form a rectangular connecting groove passing through one side surface of the upper end face of the armrest connector; the upper end face of the lower core plate is fixed with a plurality of mounting protrusions and is used to form a plurality of first mounting holes communicating with the rectangular connecting groove on the lower end face of the armrest connector; the upper end face of the upper core plate is provided with a plurality of insertion holes communicating with the rectangular groove and matching with the upper insertion rod; the plurality of upper insertion rods are all inserted into the corresponding insertion holes, and the bottom ends of the upper insertion rods abut against the upper end face of the lower core plate and are used to form a plurality of second mounting holes passing through the upper and lower ends of the handrail connector.

2. The injection mold for the handrail connector according to claim 1, characterized in that: The insertion hole is arranged obliquely, and the bottom end surface of the upper insertion rod is an inclined plane.

3. The injection mold for the handrail connector according to claim 1, characterized in that: The upper core plate is provided with two inserting holes on both the left and right sides of the rectangular groove, and there are two mounting protrusions.

4. The injection mold for the handrail connector according to claim 1, characterized in that: The mounting protrusion includes a first cylindrical section and a first conical section arranged upper and lower, the upper end outer diameter of the first conical section is smaller than the lower end outer diameter of the first conical section, and the outer diameter of the first cylindrical section is consistent with the upper end outer diameter of the first conical section.

5. The injection mold for the handrail connector according to claim 1, characterized in that: The upper insertion rod includes a second cylindrical section, a second conical section and a third cylindrical section arranged in sequence from bottom to top, the outer diameter of the third cylindrical section is consistent with the outer diameter of the upper end of the second conical section, the outer diameter of the upper end of the second conical section is larger than the outer diameter of the lower end of the second conical section, and the outer diameter of the second cylindrical section is consistent with the outer diameter of the lower end of the second conical section.

6. The injection mold for an armrest connector according to claim 1, characterized in that: A plurality of hollow protrusions are fixedly provided on the upper end surface of the lower core plate and are used to form a plurality of hollow grooves on the lower end surface of the handrail connector. The plurality of hollow protrusions are arranged in a U shape.

7. The injection mold for an armrest connector according to claim 1, characterized in that: It also includes multiple lower blocking rods. The lower core plate is provided with multiple through holes that are connected to the forming cavity and adapted to the lower blocking rods. The multiple lower blocking rods are respectively inserted into the corresponding multiple through holes and used to block the through holes.

8. The injection mold for an armrest connector according to claim 1, characterized in that: A positioning mechanism is provided between the upper core plate and the lower core plate, and the positioning mechanism includes a positioning block and a positioning groove. A plurality of positioning grooves are fixedly provided on the lower end surface of the upper core plate, and a plurality of positioning blocks are fixedly provided on the upper end surface of the lower core plate. The positioning blocks are adapted to the positioning grooves, and the positioning blocks can be detachably inserted into the positioning grooves.

9. The injection mold for an armrest connector according to claim 1, characterized in that: The upper inner surface of the rectangular groove is a first inclined surface and is used to form a second inclined surface on the upper outer surface of the handrail connector. The first inclined surface is inclined upward and toward one side of the rectangular protrusion.

10. The injection mold for an armrest connector according to claim 1, characterized in that: The number of the forming cavities is two.

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