Injection mold preparation forming mechanism

Abstract

The utility model relates to the technical field of injection molds, in particular to an injection mold preparation forming mechanism which comprises a movable mold body, a push rod body and a connecting rod, a fixed mold body is arranged on the outer wall of one side of the movable mold body, a connecting cover is installed on one side of the outer wall of the lower end of the fixed mold body, and a discharging plate is installed on one side of the inner wall of the connecting cover. Movable holes which are distributed in parallel at equal intervals are formed in the discharging plate and the connecting cover correspondingly, push rod bodies are installed on the outer walls of the two sides of the connecting cover correspondingly, connecting frames are installed on the outer walls of the lower ends of the push rod bodies, fixing plates are installed on the outer walls of one ends of the connecting frames, and movable grooves which are distributed in a rectangular array mode are formed in the fixing plates; a connecting rod is movably mounted in the movable groove, and a clamping block is mounted on the outer wall of the upper end of the connecting rod, so that the purpose of supporting a workpiece is achieved, the position of the ejected workpiece is kept stable, the workpiece is prevented from falling off due to self weight, the workpiece is prevented from being collided, the surface integrity of the workpiece is guaranteed, and the quality of the workpiece is guaranteed.

Description

Technical Field

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

[0002] Injection mold is an important tool for producing plastic products. Specifically, it refers to the process of injecting heated and melted plastic into the mold cavity under high pressure by an injection molding machine, and obtaining a molded product after cooling and solidification. Injection mold preparation and molding is a common manufacturing process that can produce various plastic products. Its general preparation and molding process is as follows: mold design, mold making, heat treatment, surface treatment, mold installation, injection molding, product removal and subsequent processing. The product removal step is to separate the mold and remove the plastic product after the internal cooling and shaping.

[0003] Although the injection mold in the prior art has many benefits during use, it still has the following problems: its protection for removing the molded workpiece is not perfect, resulting in the workpiece being ejected by the ejection mechanism inside the mold and falling to the surface of the blanking plate for centralized unloading. However, the workpiece will be impacted during the falling process, causing damage to the workpiece and affecting the molding quality of the workpiece. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides an injection mold preparation and molding mechanism.

[0005] The technical solution adopted by the utility model to solve its technical problems is an injection mold preparation molding mechanism, including a movable mold body, a push rod body and a connecting rod, a fixed mold body is provided on the outer wall of one side of the movable mold body, a connecting cover is installed on one side of the outer wall of the lower end of the fixed mold body, a discharge plate is installed on one side of the inner wall of the connecting cover, and movable holes equidistantly distributed in parallel are provided inside the discharge plate and the connecting cover, push rod bodies are installed on the outer walls of both sides of the connecting cover, a connecting frame is installed on the outer wall of one end of the connecting frame, a fixed plate is installed on the outer wall of the fixed plate, movable grooves distributed in a rectangular array are provided inside the fixed plate, a connecting rod is movably installed inside the movable groove, and a clamping block is installed on the outer wall of the upper end of the connecting rod.

[0006] By adopting the above technical solution, the molten material can enter the mold cavity inside the movable mold body and the fixed mold body for cooling and molding, the connecting cover can keep the unloading plate in a stable position, the push rod body can drive the connecting frame to move vertically, and the clamping block can move to the inside of the movable hole, and the connecting rod can keep the vertical movement position stable in the movable groove and keep the position of the clamping block stable.

[0007] Specifically, the outer wall of the upper end of the discharge plate is designed to be inclined, and the size of the movable hole is larger than that of the clamping block.

[0008] By adopting the above technical solution, the inclined surface of the unloading plate can assist the workpiece in sliding down, and can facilitate the centralized collection of the workpiece. When the clamping block enters the movable hole, the workpiece is blocked and retained by the unloading plate, and can be unloaded on the end surface of the unloading plate.

[0009] Specifically, the fixing plate is designed in a rectangular shape and is located at the lower end of the connecting cover.

[0010] By adopting the above technical solution, the fixed plate can be vertically moved at the lower end of the connecting cover by the push rod body through the connecting frame, so that the use position of the fixed plate can be adjusted, and the connecting rod and the clamping block can move with the position movement of the fixed plate, so that the use position of the clamping block can be adjusted.

[0011] Specifically, a material feeding hole is opened on the outer wall of one side of the fixed mold body, and the material feeding hole is communicated with the mold cavity inside the movable mold body and the fixed mold body respectively.

[0012] By adopting the above technical solution, the screw extruder pressurizes and conveys the molten plastic raw material into the feed hole, and injects the plastic raw material into the mold cavity inside the movable mold body and the fixed mold body, and is cooled and molded through the cooling pipes inside the movable mold body and the fixed mold body.

[0013] Specifically, a limit block is installed on the outer wall of the lower end of the connecting rod, the outer wall of the connecting rod and the inner wall of the movable groove are both designed in a rectangular shape, and the limit block is located at the lower end of the fixed plate.

[0014] By adopting the above technical solution, the connecting rod is kept outside the fixed plate through the limit block and its movement trajectory is controlled, and the connecting rod can be driven to move by the fixed plate through the limit block.

[0015] Specifically, a spring is provided on the outside of the connecting rod, the clamping block is elastically connected to the fixing plate via the spring, the connecting rod is located inside the movable hole, and the clamping block is located inside the connecting cover.

[0016] By adopting the above technical solution, the spring force stores energy when the clamping block squeezes the movable mold body, so that when the movable mold body is separated, the spring force can push the clamping block into between the movable mold body and the fixed mold body, so that the clamping block moves to the outside of the workpiece, so that the clamping block can support the position of the workpiece.

[0017] Specifically, a protective pad is fixedly attached to the outer wall of the upper end of the clamping block, and the outer wall of the upper end of the protective pad is in contact with the outer wall of the movable mold body respectively.

[0018] By adopting the above technical solution, the protective pad can protect the movable mold body and prevent the clamping block from causing damage to the outer wall of the movable mold body.

[0019] Beneficial effects of the utility model:

[0020] (1) The utility model discloses an injection mold preparation molding mechanism, wherein the plastic raw material is injected into the mold cavity inside the movable mold body and the fixed mold body, and is cooled and molded through the cooling pipes inside the movable mold body and the fixed mold body, thereby achieving the purpose of injection molding of the plastic workpiece. Afterwards, the movable mold body and the fixed mold body are separated, and the ejection mechanism inside the movable mold body can eject the molded workpiece, so that the workpiece is separated from the mold cavity, thereby ensuring the smoothness of the molding and unloading of the workpiece.

[0021] (2) The utility model discloses an injection mold preparation molding mechanism. The clamping block can sequentially enter between the movable mold body and the fixed mold body according to the parting distance of the movable mold body. The clamping block can support the workpiece after being ejected and maintain the position stability of the workpiece inside the clamping block, thereby achieving the purpose of supporting the workpiece and maintaining the position stability of the workpiece after being ejected, preventing the workpiece from falling due to its own weight and from being hit, thereby ensuring the surface integrity of the workpiece and the quality of the workpiece. Afterwards, the workpiece can slide and move along the inclined surface of the unloading plate, so that the workpiece can be collected in a centralized manner, ensuring that the workpiece is easy to collect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is an enlarged schematic diagram of the connection cover structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the appearance of the movable mold body structure of the utility model;

[0025] Figure 3 This is an enlarged schematic diagram of the push rod body structure of the present utility model;

[0026] Figure 4 It is an enlarged schematic diagram of the fixed plate structure of the present utility model;

[0027] Figure 5 It is a partially enlarged schematic diagram of the connecting rod structure of the present invention.

[0028] In the figure: 1. movable mold body; 11. fixed mold body; 12. feed hole; 13. connecting cover; 14. unloading plate; 15. movable hole; 2. push rod body; 21. connecting frame; 22. fixed plate; 23. movable groove; 3. connecting rod; 31. limit block; 32. spring; 33. clamping block; 34. protective pad. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0030] In order to save manpower and improve efficiency, as an embodiment of the present invention, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 As shown, the injection mold preparation molding mechanism described in the present invention includes a movable mold body 1, a push rod body 2 and a connecting rod 3. A fixed mold body 11 is provided on the outer wall of one side of the movable mold body 1, a connecting cover 13 is installed on one side of the outer wall of the lower end of the fixed mold body 11, and a discharge plate 14 is installed on one side of the inner wall of the connecting cover 13. Both the discharge plate 14 and the connecting cover 13 are provided with movable holes 15 equidistantly distributed in parallel. The outer walls of both sides of the connecting cover 13 are provided with push rod bodies 2, a connecting frame 21 is installed on the outer wall of the lower end of the push rod body 2, a fixed plate 22 is installed on the outer wall of one end of the connecting frame 21, and a movable groove 23 distributed in a rectangular array is provided inside the fixed plate 22. The connecting rod 3 is movably installed inside the movable groove 23, and a clamping block 33 is installed on the outer wall of the upper end of the connecting rod 3.

[0031] During use, the molten material can enter the mold cavity inside the movable mold body 1 and the fixed mold body 11 for cooling and molding, the connecting cover 13 can keep the use position of the unloading plate 14 stable, the push rod body 2 can drive the connecting frame 21 to move vertically, and the clamping block 33 can move to the inside of the movable hole 15, and the connecting rod 3 can keep the movable groove 23 stable in the vertical movement position and keep the position of the clamping block 33 stable.

[0032] For unloading, for example, Figure 1 As shown, the outer wall of the upper end of the stripping plate 14 is designed to be inclined, and the size of the movable hole 15 is larger than that of the clamping block 33.

[0033] When in use, the inclined surface of the stripping plate 14 can assist the workpiece in sliding down, and can facilitate the centralized collection of the workpiece. When the clamping block 33 enters the movable hole 15, the workpiece is blocked and retained by the stripping plate 14, and can be unloaded at the upper end surface of the stripping plate 14.

[0034] In order to drive the movement, for example, Figure 3 As shown, the fixing plate 22 is designed in a rectangular shape and is located at the lower end of the connecting cover 13 .

[0035] During use, the fixed plate 22 can be vertically moved by the push rod body 2 at the lower end of the connecting cover 13 through the connecting frame 21, so that the use position of the fixed plate 22 can be adjusted, and the connecting rod 3 and the clamping block 33 can move along with the position movement of the fixed plate 22, so that the use position of the clamping block 33 can be adjusted.

[0036] For feeding, exemplary, such as Figure 2 As shown, a material feeding hole 12 is opened on the outer wall of one side of the fixed mold body 11, and the material feeding hole 12 is communicated with the interior of the mold cavity inside the movable mold body 1 and the fixed mold body 11 respectively.

[0037] When in use, the screw extruder pressurizes and conveys the molten plastic raw material into the feed hole 12, and injects the plastic raw material into the mold cavity inside the movable mold body 1 and the fixed mold body 11, and is cooled and formed through the cooling pipes inside the movable mold body 1 and the fixed mold body 11.

[0038] In order to move the clamping block 33, for example, Figure 3 As shown, a limit block 31 is installed on the outer wall of the lower end of the connecting rod 3. The outer wall of the connecting rod 3 and the inner wall of the movable groove 23 are both designed in a rectangular shape, and the limit block 31 is located at the lower end of the fixed plate 22.

[0039] When in use, the connecting rod 3 is kept outside the fixing plate 22 by the limiting block 31 , and the movement trajectory is controlled, and the connecting rod 3 can be driven to move by the fixing plate 22 through the limiting block 31 .

[0040] In order to move the clamping block 33, for example, Figure 3 As shown, a spring 32 is provided on the outside of the connecting rod 3 , and the clamping block 33 is elastically connected to the fixing plate 22 through the spring 32 . The connecting rod 3 is located inside the movable hole 15 , and the clamping block 33 is located inside the connecting cover 13 .

[0041] When in use, the elastic force of the spring 32 stores energy when the clamping block 33 squeezes the movable mold body 1, so that when the movable mold body 1 is separated, the elastic force of the spring 32 can push the clamping block 33 into between the movable mold body 1 and the fixed mold body 11, so that the clamping block 33 moves to the outside of the workpiece, so that the clamping block 33 can support the position of the workpiece.

[0042] In order to protect the movable mold body 1, for example, Figure 5 As shown, a protective pad 34 is fixed to the outer wall of the upper end of the clamping block 33 , and the outer wall of the upper end of the protective pad 34 is in contact with the outer wall of the movable mold body 1 .

[0043] When in use, the protective pad 34 can protect the movable mold body 1 to prevent the clamping block 33 from causing damage to the outer wall of the movable mold body 1 .

[0044] When the utility model is in use, the external screw extruder pressurizes and conveys the molten plastic raw material to the inside of the feed hole 12, and the plastic raw material is injected into the mold cavity inside the movable mold body 1 and the fixed mold body 11, and is cooled and formed through the cooling pipes inside the movable mold body 1 and the fixed mold body 11;

[0045] The external power mechanism can drive the movable mold body 1 to move horizontally, so that the movable mold body 1 and the fixed mold body 11 are separated. The ejection mechanism inside the movable mold body 1 can eject the formed workpiece and separate the workpiece from the mold cavity.

[0046] According to the above-mentioned mold separation step of the movable mold body 1, the spring 32 elastic force pushes the clamping block 33 into between the movable mold body 1 and the fixed mold body 11. The clamping blocks 33 at different levels maintain the mold separation distance of the clamping blocks 33 according to the movable mold body 1, so that the clamping blocks 33 can be sequentially inserted between the movable mold body 1 and the fixed mold body 11. The clamping blocks 33 can support the workpiece after being ejected.

[0047] The push rod body 2 drives the connecting rod 3 and the clamping block 33 to move vertically through the connecting frame 21, the fixing plate 22 and the limiting block 31 until the clamping block 33 enters the movable hole 15. Due to the obstruction of the stripper plate 14, the workpiece can be retained at the upper end of the stripper plate 14, preventing the workpiece from following the stripper into the movable hole 15. The workpiece can slide and move along the inclined surface of the stripper plate 14.

[0048] After the workpiece is unloaded, the push rod body 2 can drive the clamping block 33 to reset, so that the protective pad 34 squeezes the outer wall of the movable mold body 1. The protective pad 34 can protect the movable mold body 1 and compress the spring 32 to store energy, ensuring that the clamping block 33 can be used again.

[0049] It should be noted that the present invention is an injection mold preparation molding mechanism. The components in the present invention are all components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0050] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A molding mechanism for preparing an injection mold, characterized in that: The invention comprises a movable mold body (1), a push rod body (2) and a connecting rod (3); a fixed mold body (11) is provided on an outer wall of one side of the movable mold body (1); a connecting cover (13) is installed on one side of the outer wall of the lower end of the fixed mold body (11); a discharge plate (14) is installed on one side of the inner wall of the connecting cover (13); movable holes (15) distributed equidistantly and parallel are provided inside the discharge plate (14) and the connecting cover (13); push rod bodies (2) are installed on the outer walls of both sides of the connecting cover (13); a connecting frame (21) is installed on the outer wall of the lower end of the push rod body (2); a fixed plate (22) is installed on the outer wall of one end of the connecting frame (21); movable grooves (23) distributed in a rectangular array are provided inside the fixed plate (22); a connecting rod (3) is movably installed inside the movable groove (23); and a clamping block (33) is installed on the outer wall of the upper end of the connecting rod (3).

2. The injection mold preparation and molding mechanism according to claim 1, characterized in that: The outer wall of the upper end of the stripping plate (14) is designed in an inclined shape, and the size of the movable hole (15) is larger than the size of the clamping block (33).

3. The injection mold preparation and molding mechanism according to claim 1, characterized in that: The fixing plate (22) is designed in a rectangular shape, and the fixing plate (22) is located at the lower end of the connecting cover (13).

4. The injection mold preparation and molding mechanism according to claim 1, characterized in that: An inlet hole (12) is provided on an outer wall of one side of the fixed mold body (11), and the inlet hole (12) is communicated with the interior of the mold cavity inside the movable mold body (1) and the fixed mold body (11).

5. The injection mold preparation and molding mechanism according to claim 1, characterized in that: A limit block is installed on the outer wall of the lower end of the connecting rod (3), the outer wall of the connecting rod (3) and the inner wall of the movable groove (23) are both designed in a rectangular shape, and the limit block is located at the lower end of the fixed plate (22).

6. The injection mold preparation and molding mechanism according to claim 1, characterized in that: A spring (32) is provided on the outside of the connecting rod (3), and the clamping block (33) is elastically connected to the fixed plate (22) via the spring (32). The connecting rod (3) is located inside the movable hole (15), and the clamping block (33) is located inside the connecting cover (13).

7. The injection mold preparation and molding mechanism according to claim 1, characterized in that: A protective pad (34) is fixedly attached to the outer wall of the upper end of the clamping block (33), and the outer wall of the upper end of the protective pad (34) is in contact with the outer wall of the movable mold body (1).

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