Adjustable mold for plastic processing

Abstract

The utility model relates to the technical field of forming molds, and discloses a plastic processing adjustable mold which comprises a base, a lower mold is fixedly connected to the side wall of the base, a jacking assembly is arranged in the base, an upper mold is arranged on the side wall of the lower mold, and an injection molding pipe is fixedly connected to the interior of the upper mold. A fixing assembly is arranged on the side wall of the upper mold; the jacking assembly comprises a fixing column, the side wall of the fixing column is fixedly connected between the base and the lower mold, a connecting column is slidably connected into the fixing column, and a rack is fixedly connected into the connecting column. According to the plastic product ejection device, after plastic is cooled and formed, the motor drives the rotating shaft and the gear to rotate, the gear and the rack are meshed to drive the connecting column to move upwards, the sleeve, the connecting rod and the ejection plate eject a product, the first spring provides buffering in the process, the problem that the product is prone to being damaged in traditional manual ejection is solved, and the automation degree of plastic product ejection is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of forming die especially relates to a plastic processing adjustable die. BACKGROUND

[0002] In the field of plastic processing and manufacturing, the plastic processing adjustable die is the core equipment for realizing the diversified production of products. With the continuous upgrading of the demand for plastic products in the downstream market, the product update speed is accelerated, and the product structure is becoming increasingly complex, and the precision requirement is increasingly strict. The traditional single-function die has been difficult to meet the production demand, and the adjustable die can quickly adapt to the production requirements of different products due to its adjustable structure and parameters, which can reduce the frequency of die replacement, reduce production cost, effectively shorten the product development cycle, and become the key technical means for improving the competitiveness of the plastic processing industry.

[0003] In the ejection link of the plastic die product, the traditional technology mainly relies on manual operation and simple mechanical structure. When manually ejecting, the worker needs to hold a crowbar, a ejector pin and other tools after the mold is opened, and determines the sticking position of the plastic product in the mold cavity according to experience, and gradually pries or ejects the product out of the mold by applying external force. This method completely relies on manpower, and the labor intensity is extremely high, and the operation process is slow, and the production efficiency is low. The simple mechanical ejection structure mainly adopts spring return or lever transmission principle. Taking the spring ejection mechanism as an example, during the mold closing stage, the spring is compressed to store elastic potential energy; when the mold is opened, the spring releases energy to push the ejection component to push the product out. The lever ejection structure needs to adjust the lever fulcrum and the force arm in advance, uses the mechanical transmission characteristics of the lever to amplify the force applied by the operator, and drives the ejection device to complete the product ejection action.

[0004] Due to the randomness of manual operation and the lack of precise control ability of simple mechanical structure, the ejection force, speed and position cannot be accurately grasped during the ejection process. Especially for thin-walled or complex-structured plastic products, it is easy to cause product deformation, rupture, surface scratch and other damages due to excessive ejection force, uneven speed or ejection point offset, and therefore a plastic processing adjustable die is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a plastic processing adjustable die, which aims at improving the problem that the traditional plastic die ejects products by manual operation in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a plastic processing adjustable mould, including base, the side wall fixed connection of base lower mould is provided with upper mould, the inside fixed connection of upper mould is provided with injection pipe, the side wall of upper mould is provided with fixed assembly,

[0008] The lifting assembly includes a fixed column, the fixed column is fixedly connected between the base and the lower mold, a connecting column is slidably connected in the fixed column, a rack is fixedly connected in the connecting column, a fixed frame is fixedly connected to the side wall of the fixed column, a rotating shaft is rotatably connected between the fixed frames, gears are fixedly connected to the ends of the rotating shaft, a motor is provided on one side of the fixed frame, a sleeve is fixedly connected to the side wall of the connecting column, a connecting rod is slidably connected in the sleeve, a first spring is provided in the sleeve, and a top plate is fixedly connected to the side wall of the connecting rod.

[0009] As a further description of the above technical solution:

[0010] The fixed assembly includes a clamping block, a positioning groove is formed in the lower mold, and a positioning key is provided on the side wall of the upper mold.

[0011] As a further description of the above technical solution:

[0012] The side wall of the upper mold is fixedly connected with a connecting frame, the side wall of the clamping block is slidably connected in the connecting frame, the side wall of the clamping block is fixedly connected with a limiting block, and the side wall of the limiting block is slidably connected in the connecting frame.

[0013] As a further description of the above technical solution:

[0014] A fixed block is fixedly connected in the connecting frame, the side wall of the limiting block is slidably connected in the fixed block, a third spring is fixedly connected in the limiting block, and the side wall of the third spring is fixedly connected to the side wall of the fixed block.

[0015] As a further description of the above technical solution:

[0016] A second spring is sleeved on the side wall of the limiting block, one end of the second spring is fixedly connected in the connecting frame, and the other end of the second spring is fixedly connected to the side wall of the limiting block.

[0017] As a further description of the above technical solution:

[0018] The side wall of the positioning key is fixedly connected with a fixed rod, the side wall of the fixed rod is slidably connected in the connecting frame, and the side wall of the clamping block is slidably connected in the fixed rod.

[0019] As a further description of the above technical solution:

[0020] The connecting column side wall is slidably connected in the lower mold, the gear is rotatably connected in the fixed frame, the gear is engaged with the rack, and the motor output end is connected with the rotating shaft.

[0021] Further description of the above technical solution:

[0022] One end of the first spring is fixedly connected with the connecting rod side wall, the other end of the first spring is fixedly connected with the sleeve inside, and the top plate side wall is slidably connected in the lower mold.

[0023] The utility model has the advantages of the following beneficial effects:

[0024] 1. In the utility model, after the plastic is cooled and formed, the motor is started, the output end drives the rotating shaft and the gear to rotate in the fixed frame, the gear is engaged with the rack, the connecting column is driven to move upward in the fixed column, the sleeve and the connecting rod are lifted, the top plate lifts the product, the connecting rod presses the first spring buffer in the process, the problem that the traditional plastic mold lifts out the product by manual operation and is easy to damage the product is solved, and the automation degree of the plastic product lifting process is improved through the above technical solution.

[0025] 2. In the utility model, when the positioning key needs to be replaced, the positioning key is pulled down, the fixed rod is pressed to extrude the clamping block into the connecting frame, the clamping block drives the limiting block to slide and press the second spring and the third spring, when the positioning key is removed and replaced, the new positioning key is inserted, the fixed rod extrudes the clamping block into the connecting frame, the clamping block is aligned with the recess after being inserted to the bottom, the second spring and the third spring rebound to clamp the clamping block into the fixed rod to fix the positioning key, the problem that the traditional positioning key is mostly welded or bolted, the fixing mode is inconvenient to disassemble and takes a long time to replace is solved, and the convenience and efficiency of replacing the positioning key are improved through the above technical solution. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A three-dimensional schematic view of the plastic processing adjustable mold is provided for the utility model;

[0027] Figure 2 A mold internal structure schematic view of the plastic processing adjustable mold is provided for the utility model;

[0028] Figure 3 An upper mold structure schematic view of the plastic processing adjustable mold is provided for the utility model;

[0029] Figure 4 A Figure 3 An enlarged view of position A in the middle.

[0030] LEGEND:

[0031] 1, base; 2, lower mold; 3, upper mold; 4, injection tube; 5, positioning groove; 6, fixed column; 7, connecting column; 8, rack; 9, fixed frame; 10, rotating shaft; 11, gear; 12, motor; 13, sleeve; 14, connecting rod; 15, first spring; 16, top plate; 17, positioning key; 18, connecting frame; 19, clamping block; 20, limiting block; 21, fixed block; 22, second spring; 23, third spring; 24, fixed rod. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] Reference Figure 1 and Figure 2The utility model provides a kind of embodiment: a plastic processing adjustable mould, including base 1, lower mould 2 is fixedly connected in base 1 side wall, base 1 inside is provided with jacking subassembly, lower mould 2 side wall is provided with upper mould 3, upper mould 3 and lower mould 2 jointly constitute complete forming space, guarantee that plastic can be formed as required product shape in it, upper mould 3 is fixedly connected with injection tube 4 inside, injection tube 4 is the channel that molten plastic material is injected into the forming cavity consisting of upper mould 3 and lower mould 2, ensure that plastic material can smoothly enter mould inside, upper mould 3 side wall is provided with fixed assembly;Jacking subassembly includes fixed column 6, fixed column 6 side wall is fixedly connected between base 1 and lower mould 2, fixed column 6 inside is slidably connected with connecting column 7, fixed column 6 is used to provide orientation and support for the sliding of connecting column 7, guarantee the stability of jacking action, it is fixedly connected with rack 8 in connecting column 7, fixed column 6 side wall is fixedly connected with fixed frame 9, rotating shaft 10 is rotatably connected between fixed frame 9, and rotating shaft 10 both ends are fixedly connected with gear 11, one side fixed frame 9 side wall is provided with motor 12, rack 8 is engaged with gear 11, under the drive of motor 12, connecting column 7 is driven to slide along fixed column 6 by gear 11 rotation, realize the effect that the product after forming is ejected lower mould 2, connecting column 7 side wall is fixedly connected with sleeve 13, sleeve 13 inside is slidably connected with connecting rod 14, sleeve 13 inside is provided with first spring 15, sleeve 13 and connecting rod 14 are slidably matched, and the buffer force of inside first spring 15 is provided, when top plate 16 contacts product, first spring 15 is compressed, avoid damage to product in ejecting moment, it can assist top plate 16 reset after ejecting simultaneously, connecting rod 14 side wall is fixedly connected with top plate 16, connecting column 7 side wall is slidably connected in lower mould 2 inside, gear 11 is rotatably connected in fixed frame 9 inside, gear 11 is engaged with rack 8, motor 12 output end is connected with rotating shaft 10, first spring 15 one end is fixedly connected in connecting rod 14 side wall, first spring 15 other end is fixedly connected in sleeve 13 inside, top plate 16 side wall is slidably connected in lower mould 2 inside;

[0034] Referring to Figure 1 、 Figure 3 and Figure 4The fixed assembly comprises a clamping block 19, the lower mold 2 is internally provided with a positioning groove 5, the sidewall of the upper mold 3 is provided with a positioning key 17, the sidewall of the positioning key 17 is slidably connected in the positioning groove 5, the positioning groove 5 cooperates with the positioning key 17, and the positioning groove 5 and the positioning key 17 preliminarily position the upper mold 3 and the lower mold 2, so that the accuracy of mold closing is ensured, the sidewall of the upper mold 3 is fixedly connected with a connecting frame 18, the sidewall of the clamping block 19 is slidably connected in the connecting frame 18, the sidewall of the clamping block 19 is fixedly connected with a limiting block 20, the sidewall of the limiting block 20 is slidably connected in the connecting frame 18, the connecting frame 18 is fixedly connected with a fixing block 21 internally, the sidewall of the fixing block 21 is slidably connected in the limiting block 20 internally, the limiting block 20 is fixedly connected with a third spring 23 internally, the sidewall of the third spring 23 is fixedly connected with the sidewall of the fixing block 21, the sidewall of the limiting block 20 is sleeved with a second spring 22, one end of the second spring 22 is fixedly connected in the connecting frame 18, the other end of the second spring 22 is fixedly connected with the sidewall of the limiting block 20, the third spring 23 provides a reset force for the limiting block 20, so that the clamping block 19 stably slides in the fixing and loosening process, the second spring 22 is sleeved on the limiting block 20, and the clamping block 19 is further reset, the sidewall of the positioning key 17 is fixedly connected with a fixing rod 24, the sidewall of the fixing rod 24 is slidably connected in the connecting frame 18, the sidewall of the clamping block 19 is slidably connected in the fixing rod 24, the fixing rod 24 cooperates with the clamping block 19 to form a fixed connection structure, and the positioning key 17 is fixed.

[0035] Working principle: when the mold is used, the injection tube 4 injects the molten plastic into the molding space formed by the upper mold 3 and the lower mold 2, after the plastic is cooled and formed, the motor 12 is started, the output end of the motor 12 drives the rotating shaft 10 and the gears 11 installed at the two ends to rotate in the fixed frame 9, since the gears 11 are meshed with the rack 8 in the connecting column 7, the rotation of the gears 11 drives the rack 8 to move, and then drives the connecting column 7 to move upwards in the fixed column 6, the movement of the connecting column 7 drives the sleeve 13 and the connecting rod 14 connected therewith to ascend, the ascending of the connecting rod 14 drives the top plate 16 to contact and lift the formed product, in the lifting process, the connecting rod 14 slides in the sleeve 13 and simultaneously presses the first spring 15, and the first spring 15 provides a buffering effect to prevent the product from being damaged;

[0036] When the positioning key 17 needs to be replaced due to serious wear, the positioning key 17 is pulled down, the positioning key 17 drives the fixed rod 24 to move, the movement of the fixed rod 24 extrudes the clamping block 19, the clamping block 19 is separated from the inside of the fixed rod 24 and enters the inside of the connecting frame 18, the movement of the clamping block 19 drives the limiting block 20 to slide on the side wall of the fixed block 21, meanwhile, the clamping block 19 also extrudes the second spring 22 and the third spring 23, at this time, the positioning key 17 can be taken off for replacement, when replacing, the new positioning key 17 is aligned with the connecting frame 18 and is inserted, the fixed rod 24 enters the inside of the connecting frame 18, the fixed rod 24 extrudes the clamping block 19, the clamping block 19 enters the inside of the connecting frame 18, when the fixed rod 24 is completely inserted, the clamping block 19 is aligned with the recess hole in the inside of the fixed rod 24, at this time, the second spring 22 and the third spring 23 rebound because they are not extruded, the clamping block 19 is clamped in the inside of the fixed rod 24, thereby the fixing of the positioning key 17 is completed.

[0037] Finally, it should be noted that: the above only for the preferred embodiments of the utility model have described, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A plastic processing adjustable mold comprising a base (1), characterized in that: The lower mold (2) is fixedly connected to the side wall of the base (1), the base (1) is internally provided with a jacking assembly, the upper mold (3) is arranged on the side wall of the lower mold (2), the upper mold (3) is internally fixedly connected with an injection tube (4), and the upper mold (3) is provided with a fixing assembly; The jacking assembly comprises a fixed column (6), the fixed column (6) is fixedly connected between the base (1) and the lower mold (2), a connecting column (7) is slidably connected in the fixed column (6), a rack (8) is fixedly connected in the connecting column (7), a fixed frame (9) is fixedly connected to the side wall of the fixed column (6), a rotating shaft (10) is rotatably connected between the fixed frames (9), gear wheels (11) are fixedly connected to both ends of the rotating shaft (10), a motor (12) is arranged on one side of the fixed frame (9), a sleeve (13) is fixedly connected to the side wall of the connecting column (7), a connecting rod (14) is slidably connected in the sleeve (13), a first spring (15) is arranged in the sleeve (13), and a top plate (16) is fixedly connected to the side wall of the connecting rod (14).

2. The adjustable mold for processing plastic according to claim 1, wherein: The fixing assembly comprises a clamping block (19), the lower mold (2) is internally provided with a positioning groove (5), the upper mold (3) is provided with a positioning key (17), and the side wall of the positioning key (17) is slidably connected in the positioning groove (5).

3. The adjustable mold for processing plastic according to claim 2, wherein: The upper mold (3) is fixedly connected with a connecting frame (18), the side wall of the clamping block (19) is slidably connected in the connecting frame (18), the side wall of the clamping block (19) is fixedly connected with a limiting block (20), and the side wall of the limiting block (20) is slidably connected in the connecting frame (18).

4. The adjustable mold for processing plastic according to claim 3, wherein: The connecting frame (18) is fixedly connected with a fixed block (21), the side wall of the limiting block (20) is slidably connected in the fixed block (21), the limiting block (20) is fixedly connected with a third spring (23), and the side wall of the third spring (23) is fixedly connected to the side wall of the fixed block (21).

5. The adjustable mold for processing plastic according to claim 4, wherein: The side wall of the limiting block (20) is sleeved with a second spring (22), one end of the second spring (22) is fixedly connected in the connecting frame (18), and the other end of the second spring (22) is fixedly connected to the side wall of the limiting block (20).

6. The adjustable mold for processing plastic according to claim 5, wherein: The side wall of the positioning key (17) is fixedly connected with a fixed rod (24), the side wall of the fixed rod (24) is slidably connected in the connecting frame (18), and the side wall of the clamping block (19) is slidably connected in the fixed rod (24).

7. The adjustable mold for processing plastic according to claim 1, wherein: The side wall of the connecting column (7) is slidably connected in the lower mold (2), the gear wheels (11) are rotatably connected in the fixed frame (9), the gear wheels (11) are engaged with the rack (8), and the output end of the motor (12) is connected with the rotating shaft (10).

8. The adjustable mold for processing plastic according to claim 1, wherein: One end of the first spring (15) is fixedly connected to the side wall of the connecting rod (14), the other end of the first spring (15) is fixedly connected in the sleeve (13), and the side wall of the top plate (16) is slidably connected in the lower mold (2).

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