Plastic mold core-pulling mechanism easy to operate

Abstract

The utility model relates to the technical field of plastic molds, and discloses a core-pulling mechanism of a plastic mold, which is simple to operate and comprises a mold, a mold cover is arranged at the top end of the mold, an inserting strip is fixedly connected to the lower surface of the mold cover, and a clamping groove is formed in the side surface of the inserting strip. Through the arrangement of an inserting strip, when the inserting strip is inserted into an inserting groove, the inclined face of the bottom end of the inserting strip abuts against the side face of a limiting rod, so that a guide rod is driven to move, one end of the guide rod is far away from an inverted trapezoidal block, at the moment, the elastic force of a first spring is applied to a sleeve to drive a top plate to move downwards, and the top plate moves to the inner bottom of the mold; when the mold cover is taken out, the inserting strip is pulled away from the interior of the inserting groove, the tensile force of the tension spring is applied to the guide rod and drives the guide rod to move, one end of the guide rod abuts against the side face of the inverted trapezoidal block, and therefore the top plate is driven to move upwards, a plastic product in the mold is driven to be ejected out by the top plate, and the plastic product in the mold is conveniently taken out.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic moulds, in particular to a plastic mould core pulling mechanism which is easy to operate. Background Art

[0002] At present, plastic molds are tools that are used in the plastic processing industry to match plastic molding machines and give plastic products complete configurations and precise dimensions. Due to the wide variety of plastics and processing methods, and the varying structures of plastic molding machines and plastic products, the types and structures of plastic molds are also diverse. However, there are still some shortcomings in the existing plastic mold core pulling mechanisms.

[0003] The core-pulling mechanism is very inconvenient to remove the plastic products inside the mold, is time-consuming and labor-intensive to operate, and cannot achieve automatic core pulling. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a plastic mold core pulling mechanism that is easy to operate and has the advantages of being easy to take out the plastic products inside the mold and being able to achieve automatic core pulling, thus solving the problems raised in the background technology.

[0005] The utility model provides the following technical scheme: a plastic mold core pulling mechanism with simple operation, comprising a mold, a mold cover is provided at the top of the mold, an insert strip is fixedly connected to the lower surface of the mold cover, a card slot is provided on the side of the insert strip, slots are provided on both sides of the upper surface of the mold, and the slots are consistent with the model and specification of the insert strip, columns are fixedly connected at the four corners of the inner bottom of the mold, a sleeve is movably sleeved on the surface of the column, the top end of the sleeve is fixedly connected to a top plate, and the bottom end of the top plate is fixedly connected to an inverted trapezoidal block.

[0006] Preferably, a spring 1 is provided between the sleeve and the column, the top end of the spring 1 is fixedly connected to the top end of the column, and the bottom end of the spring 1 is fixedly connected to the bottom end of the sleeve.

[0007] Preferably, both side walls of the mold are slidably connected with guide rods, one end of the guide rods is provided with an inclined surface, the inclined surface of the guide rods abuts against the side of the inverted trapezoidal block, one end of the guide rods is fixedly connected with a tension spring, and the other end of the tension spring is fixedly connected to the surface of the mold.

[0008] Preferably, a side surface of the guide rod is fixedly connected to a limiting rod, and the insertion strip corresponds to the position of the limiting rod.

[0009] Preferably, a card slot is provided on the side of the insert, a sleeve is fixedly connected to the bottom end of the mold, a card plate is slidably sleeved on the surface of the sleeve, a groove is provided at the bottom end of the mold, the groove corresponds to the position of the card plate, and the model specifications of the card plate and the card slot are consistent.

[0010] Preferably, one end of the clamping plate is fixedly connected with a wrench, the side surface of the clamping plate is fixedly connected with a second spring, the bottom end of the mold is fixedly connected with a bottom strip, and the other end of the second spring is fixedly connected with the side surface of the bottom strip.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. By providing a plug strip, when the plug strip is inserted into the slot, the inclined surface at the bottom end of the plug strip abuts against the side surface of the limiting rod, thereby driving the guide rod to move, so that one end of the guide rod moves away from the inverted trapezoidal block. At this time, the elastic force of the first spring is applied to the sleeve, driving the top plate to move downward, so that the position of the top plate moves to the inner bottom of the mold. When the mold cover is taken out, the plug strip is pulled out from the slot, and the pulling force of the tension spring is applied to the guide rod and drives it to move, so that one end of the guide rod abuts against the side surface of the inverted trapezoidal block, thereby driving the top plate to move upward and driving the plastic product in the mold to be ejected by the top plate, thus facilitating the removal of the plastic product in the mold.

[0013] 2. When the plug strip is inserted into the slot, the bottom end of the plug strip will abut against one side of the clamping plate, driving the clamping plate to move on the surface of the sleeve. When the side edge of the clamping plate corresponds to the position of the clamping slot, at this time, the elastic force of the second spring is applied to the clamping plate, so that the side edge of the clamping plate is clamped with the clamping slot, thereby fixing the mold cover at the top of the mold and completing the fixed installation of the mold cover. The operation is simple and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the device of the utility model;

[0015] Figure 2 It is a schematic diagram of the bottom structure of the mold of the utility model;

[0016] Figure 3 It is a schematic diagram of the overall sectional structure of the device of the utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the mold cover of the utility model;

[0018] Figure 5 It is a schematic diagram of the sectional structure of the mold of the utility model.

[0019] In the figure: 1. Mold; 2. Mold cover; 3. Plug strip; 4. Clamping slot; 5. Guide rod; 6. Limiting rod; 7. Tension spring; 8. Top plate; 9. Sleeve; 10. Column; 11. First spring; 12. Inverted trapezoidal block; 13. Slot; 14. Bottom strip; 15. Sleeve frame; 16. Clamping plate; 17. Second spring; 18. Wrench; 19. Groove. DETAILED DESCRIPTION OF THE INVENTION

[0020] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Referring to Figures 1-5 , a core-pulling mechanism for a plastic mold with simple operation, including a mold 1. A mold cover 2 is provided at the top of the mold 1. A plug bar 3 is fixedly connected to the lower surface of the mold cover 2. A card slot 4 is formed on the side surface of the plug bar 3. Slots 13 are formed on both sides of the upper surface of the mold 1. The model specifications of the slots 13 and the plug bar 3 are matched. Columns 10 are fixedly connected to the four corners of the inner bottom of the mold 1. A sleeve 9 is movably sleeved on the surface of the column 10. A top plate 8 is fixedly connected to the top end of the sleeve 9. An inverted trapezoidal block 12 is fixedly connected to the bottom end of the top plate 8.

[0022] Among them, a first spring 11 is provided between the sleeve 9 and the column 10. The top end of the first spring 11 is fixedly connected to the top end of the column 10, and the bottom end of the first spring 11 is fixedly connected to the bottom end of the sleeve 9. Guide rods 5 are slidably inserted into both side walls of the mold 1. One end of the guide rod 5 is provided with an inclined surface. The inclined surface of the guide rod 5 abuts against the side surface of the inverted trapezoidal block 12. A tension spring 7 is fixedly connected to one end of the guide rod 5. The other end of the tension spring 7 is fixedly connected to the surface of the mold 1. A limiting rod 6 is fixedly connected to the side surface of the guide rod 5. The positions of the plug bar 3 and the limiting rod 6 correspond to each other. The plug bar 3 is inserted into the inside of the slot 13. By the inclined surface at the bottom end of the plug bar 3 abutting against the side surface of the limiting rod 6, the guide rod 5 is driven to move, so that one end of the guide rod 5 moves away from the inverted trapezoidal block 12. At this time, the elastic force of the first spring 11 is applied to the sleeve 9, driving the top plate 8 to move downward, so that the position of the top plate 8 moves to the inner bottom of the mold 1. When the mold cover 2 is taken out, the plug bar 3 is withdrawn from the inside of the slot 13. The pulling force of the tension spring 7 is applied to the guide rod 5 and drives it to move, so that one end of the guide rod 5 abuts against the side surface of the inverted trapezoidal block 12, thereby driving the top plate 8 to move upward and driving the plastic product in the mold 1 to be ejected by the top plate 8.

[0023] Among them, a card slot 4 is provided on the side of the cutting 3. The bottom end of the mold 1 is fixedly connected with a sleeve holder 15. A clamping plate 16 is slidably sleeved on the surface of the sleeve holder 15. A groove 19 is provided at the bottom end of the mold 1, and the position of the groove 19 corresponds to that of the clamping plate 16. The model specifications of the clamping plate 16 and the card slot 4 are matched. One end of the clamping plate 16 is fixedly connected with a wrench 18. A second spring 17 is fixedly connected to the side of the clamping plate 16. The bottom end of the mold 1 is fixedly connected with a bottom strip 14. The other end of the second spring 17 is fixedly connected to the side of the bottom strip 14. When the cutting 3 is inserted into the inside of the slot 13, the bottom end of the cutting 3 will abut against one side of the clamping plate 16, driving the clamping plate 16 to move on the surface of the sleeve holder 15. When one side edge of the clamping plate 16 corresponds to the position of the card slot 4, at this time, the elastic force of the second spring 17 is applied to the clamping plate 16, so that one side edge of the clamping plate 16 is clamped with the card slot 4, thereby fixing the mold cover 2 on the top of the mold 1 and completing the fixed installation of the mold cover 2.

[0024] Working principle: When the cutting 3 is inserted into the inside of the slot 13, the inclined surface at the bottom end of the cutting 3 abuts against the side surface of the limiting rod 6, thereby driving the guide rod 5 to move, so that one end of the guide rod 5 moves away from the inverted trapezoidal block 12. At this time, the elastic force of the first spring 11 is applied to the sleeve 9, driving the top plate 8 to move downward, so that the position of the top plate 8 moves to the inner bottom of the mold 1. When the mold cover 2 is taken out, the cutting 3 is pulled out from the inside of the slot 13, and the pulling force of the tension spring 7 is applied to the guide rod 5 and drives it to move, so that one end of the guide rod 5 abuts against the side surface of the inverted trapezoidal block 12, thereby driving the top plate 8 to move upward and driving the plastic product in the mold 1 to be ejected by the top plate 8, so as to facilitate taking out the plastic product in the mold 1. When the cutting 3 is inserted into the inside of the slot 13, the bottom end of the cutting 3 will abut against one side of the clamping plate 16, driving the clamping plate 16 to move on the surface of the sleeve holder 15. When one side edge of the clamping plate 16 corresponds to the position of the card slot 4, at this time, the elastic force of the second spring 17 is applied to the clamping plate 16, so that one side edge of the clamping plate 16 is clamped with the card slot 4, thereby fixing the mold cover 2 on the top of the mold 1 and completing the fixed installation of the mold cover 2.

[0025] In the description, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. In addition, in the description of the present invention, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0026] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A core-pulling mechanism for plastic molds with simple operation, characterized in that: It includes a mold (1), a mold cover (2) is provided at the top of the mold (1), an insertion bar (3) is fixedly connected to the lower surface of the mold cover (2), a card slot (4) is formed on the side surface of the insertion bar (3), slots (13) are formed on both sides of the upper surface of the mold (1), and the slots (13) are in line with the insertion bar (3) in terms of model specifications. Columns (10) are fixedly connected to the four corners of the inner bottom of the mold (1), a sleeve (9) is movably sleeved on the surface of the column (10), a top plate (8) is fixedly connected to the top end of the sleeve (9), and an inverted trapezoidal block (12) is fixedly connected to the bottom end of the top plate (8).

2. The core-pulling mechanism of a plastic mold with simple operation according to claim 1, characterized in that: A first spring (11) is provided between the sleeve (9) and the column (10), the top end of the first spring (11) is fixedly connected to the top end of the column (10), and the bottom end of the first spring (11) is fixedly connected to the bottom end of the sleeve (9).

3. A core-pulling mechanism for a plastic mold with simple operation according to claim 1, characterized in that: Guide rods (5) are slidably inserted into both side walls of the mold (1), one end of the guide rod (5) is provided with an inclined surface, the inclined surface of the guide rod (5) abuts against the side surface of the inverted trapezoidal block (12), a tension spring (7) is fixedly connected to one end of the guide rod (5), and the other end of the tension spring (7) is fixedly connected to the surface of the mold (1).

4. The core-pulling mechanism of a plastic mold with simple operation according to claim 3, characterized in that: A limiting rod (6) is fixedly connected to the side surface of the guide rod (5), and the insertion bar (3) corresponds to the position of the limiting rod (6).

5. The core-pulling mechanism of a plastic mold with simple operation according to claim 1, characterized in that: A card slot (4) is formed on the side surface of the insertion bar (3), a sleeve frame (15) is fixedly connected to the bottom end of the mold (1), a clamping plate (16) is slidably sleeved on the surface of the sleeve frame (15), a groove (19) is formed at the bottom end of the mold (1), the groove (19) corresponds to the position of the clamping plate (16), and the clamping plate (16) is in line with the card slot (4) in terms of model specifications.

6. The core-pulling mechanism of a plastic mold with simple operation according to claim 5, characterized in that: A wrench (18) is fixedly connected to one end of the clamping plate (16), a second spring (17) is fixedly connected to the side surface of the clamping plate (16), a bottom bar (14) is fixedly connected to the bottom end of the mold (1), and the other end of the second spring (17) is fixedly connected to the side surface of the bottom bar (14).

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