Rubber damper processing injection molding equipment

Abstract

The application relates to the field of injection molds, in particular to rubber shock absorber processing injection molding equipment, which comprises a carrier, a support for bearing a hydraulic cylinder arranged above the carrier, and a hydraulic cylinder for driving vertical lifting movement of an upper mold body; a middle mold body is arranged below the upper mold body, a lower mold body is connected to the middle mold body below through a lifting assembly, and the surface of the middle mold body is uniformly provided with a plurality of mold cavities; a blade is arranged on the upper surface of the middle mold body, and the two ends of the blade are kept connected with the support through a blade seat; an outward extension assembly is used for driving the middle mold body, the lower mold body and the upper mold body to move in dislocation, and the blade scrapes off the rubber thin layer on the upper surface of the middle mold body during the movement of the middle mold body; the blade is elastically contacted with the surface of the middle mold body, the middle mold body is translated during demolding, the rubber thin layer on the surface of the middle mold body is directly scraped off by the blade during the process, the rubber thin layer is neatly separated from the formed rubber shock absorber, the demolding efficiency is accelerated, and the demolding quality is improved.

Description

Technical Field

[0001] This invention relates to the field of injection molds, and more particularly to injection molding equipment for processing rubber shock absorbers. Background Technology

[0002] Rubber shock absorbers are injection molded from rubber material in a mold. The mold body of a rubber shock absorber generally consists of three mold bodies: upper, middle, and lower. The rubber material is placed in the cavity of the middle mold, and then pressure is applied to the mold body to squeeze and shape the rubber material. When removing the molded workpiece, the upper mold is opened and the lower mold is separated to remove the main body of the rubber shock absorber from the mold cavity. In order to ensure the precise molding of the rubber shock absorber, the amount of rubber material placed will be more than the amount required for molding. The excess rubber material will form a thin layer on the upper surface of the middle mold that adheres to each molded part. After the mold is opened, the rubber thin layer on the upper surface of the middle mold needs to be removed. Traditionally, the rubber thin layer is removed manually, which not only makes the demolding efficiency of the workpiece low, but also makes it difficult to remove the rubber thin layer neatly. Summary of the Invention

[0003] The purpose of this invention is to solve the following problems existing in the prior art: In order to ensure the accurate molding of rubber shock absorbers, the amount of rubber material placed will be more than the amount required for molding. The excess rubber material will form a thin layer on the upper surface of the middle mold that adheres to each molded part. After the mold is opened, the thin rubber layer on the upper surface of the middle mold needs to be removed. Traditionally, the thin rubber layer is torn off manually, which not only makes the demolding efficiency of the workpiece low, but also makes it difficult to remove the thin rubber layer neatly.

[0004] To address the problems existing in the prior art, the present invention provides a rubber shock absorber processing injection molding equipment, including a platform, a support for a hydraulic cylinder mounted above the platform, the hydraulic cylinder being used to drive the upper mold body to move vertically up and down;

[0005] The middle mold body is located below the upper mold body. The lower mold body is connected to the middle mold body via a lifting component. Several mold cavities are evenly distributed on the surface of the middle mold body.

[0006] The blade is set on the upper surface of the middle mold body, and both ends of the blade are connected to the bracket through the blade holder;

[0007] The extension component is used to drive the middle mold body, lower mold body and upper mold body to move and misalign. During the movement of the middle mold body, the blade scrapes off the thin rubber layer on its upper surface.

[0008] Preferably, the angle between the blade and the upper surface of the intermediate mold body is 20°-60°.

[0009] Preferably, multiple blades are arranged in parallel, and the gap between adjacent blades is greater than 2 cm.

[0010] Preferably, the blade holder includes a base body connected by a support arm. A slide is provided on the surface of the base body, and a slot is provided on the surface of the slide. Both ends of the blade have shanks that fit into the slots. After the shanks are inserted into the slots, screws are threaded through the base body to connect the shanks, so that the blade and the slide are kept fixed.

[0011] Preferably, the surface of the seat body is provided with a sliding cavity, the slide block slides vertically in the sliding cavity, a pressure plate is provided at the top of the sliding cavity, a spring is connected between the pressure plate and the slide block, and a stud threaded through the top of the seat body is rotatably connected to the pressure plate.

[0012] Preferably, the support surface is provided with a sliding groove, and the support arm is vertically and elastically connected to the sliding groove by a spring, so that the blade has a lifting space on the surface of the middle mold. Track bars are provided on both sides of the middle mold body, and the two ends of the track bars have parallel inclined surfaces. The seat is fixed with a contact handle, and the contact handle presses against the track bar.

[0013] Preferably, the lifting assembly includes a second cylinder and a sliding column. The middle mold body and the lower mold body are vertically slidably connected by multiple sliding columns, and the second cylinder is used to push the lower mold body to move up and down.

[0014] Preferably, the extension component includes a first cylinder, which is used to push the middle mold body to move horizontally in a straight line, and the middle mold body slides horizontally in a straight line with the platform through two guides.

[0015] Compared with related technologies, the rubber shock absorber processing injection molding equipment provided by the present invention has the following advantages:

[0016] Beneficial effects:

[0017] The present invention provides a blade on the upper surface of the middle mold body. The blade elastically contacts the surface of the middle mold body. During the demolding process, the middle mold body moves horizontally. During this process, the blade directly scrapes off the thin rubber layer on the surface of the middle mold body, so that the thin rubber layer is neatly separated from the molded rubber shock absorber, which speeds up the demolding efficiency and improves the demolding quality. Attached Figure Description

[0018] Figure 1 This is one of the overall structural schematic diagrams of the present invention;

[0019] Figure 2 This is the second schematic diagram of the overall structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the external extension of the middle mold body in this invention;

[0021] Figure 4 This is a schematic diagram of the lifting component structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the blade connecting to the blade holder structure of the present invention;

[0023] Figure 6 This is a schematic diagram of the contact handle alignment track bar structure of the present invention.

[0024] The following are the labeling elements in the diagram: 1. Platform; 11. Bracket; 12. Hydraulic cylinder; 13. Guide rod; 14. Slide groove; 2. First cylinder; 3. Upper mold body; 4. Middle mold body; 41. Guide frame; 42. Track bar; 43. Second cylinder; 44. Sliding column; 5. Lower mold body; 6. Tool holder; 61. Base; 62. Support arm; 63. Slide cavity; 64. Slide seat; 65. Slot; 66. Pressure plate; 67. Stud; 7. Blade; 71. Insert handle; 8. Contact handle. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0026] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0027] The basic components of the rubber shock absorber injection molding equipment are as follows:

[0028] like Figure 1-3 As shown, a support 11 is fixed on the upper surface of the platform 1, a hydraulic cylinder 12 is installed on the surface of the support 11, the upper mold body 3 is set at the lower part of the support 11, the telescopic end of the hydraulic cylinder 12 is fixedly connected to the center position of the upper mold body 3, and two guide rods 13 are symmetrically fixed on the upper surface of the upper mold body 3. The guide rods 13 slide through the support 11.

[0029] like Figure 4 As shown, the middle mold body 4 and the lower mold body 5 are arranged below the upper mold body 3 in sequence. The surface of the middle mold body 4 is evenly provided with several mold cavities. The lifting assembly includes a second cylinder 43 and a sliding column 44. Multiple sliding columns 44 are fixed on both sides of the lower mold body 5. The sliding columns 44 slide vertically through the side of the middle mold body 4, so that the middle mold body 4 and the lower mold body 5 can slide vertically. The second cylinder 43 is installed on both sides of the middle mold body 4. The telescopic end of the second cylinder 43 is connected to the edge of the lower mold body 5.

[0030] like Figure 1 , 3 As shown, the extension component includes a first cylinder 2, which is installed at the rear of the platform 1. The telescopic end of the first cylinder 2 is fixedly connected to the middle mold body 4, and the middle mold body 4 slides horizontally and linearly with the platform 1 through two guide frames 41.

[0031] Hydraulic cylinder 12 is retracted, and the upper mold body 3 is moved upward under the guidance of guide rod 13. First cylinder 2 is extended, and the middle mold body 4 and lower mold body 5 are moved to one side of platform 1 under the guidance of guide frame 41. Rubber material is placed in each cavity of middle mold body 4. Then, first cylinder 2 is retracted to vertically align middle mold body 4 with upper mold body 3. Hydraulic cylinder 12 is extended to lower upper mold body 3 and close with middle mold body 4. Rubber material is injected and molded in the mold cavity. When demolding, hydraulic cylinder 12 is retracted to drive upper mold body 3 to rise. Then, first cylinder 2 pushes middle mold body 4 to the side of platform 1. Second cylinder 43 is extended, and lower mold body 5 is lowered under the guidance of slide column 44. Then, the molded rubber shock absorber in the mold cavity is removed.

[0032] The settings for blade 7 are as follows:

[0033] like Figure 1-3 As shown, two tool holders 6 are set on the translation side of the middle mold body 4. The two tool holders 6 are connected to both sides of the bracket 11. The blade 7 is set on the upper surface of the middle mold body 4. The two ends of the blade 7 are connected to the tool holders 6. The cutting edge at the bottom of the blade 7 is inclined to the rear of the middle mold body 4, so that the angle between the blade 7 and the upper surface of the middle mold body 4 is 20°-60°, and the optimal angle is 30°.

[0034] During the injection molding of the rubber shock absorber, the blade 7 is located at the front end of the middle mold body 4. After injection molding, when the first cylinder 2 pushes the middle mold body 4 to move horizontally, the inclined blade 7 cuts and scrapes off the rubber thin layer along the upper surface of the middle mold body 4, so that the rubber thin layer is separated from the molded part.

[0035] Multiple blades 7 are arranged in parallel, with a gap of more than 2 cm between adjacent blades 7. Multiple blades 7 increase the cleanliness of scraping off the thin rubber layer.

[0036] like Figure 5 As shown, the blade holder 6 includes a base 61, which is connected by a support arm 62. A slide 64 is provided on the surface of the base 61, and a slot 65 is provided on the surface of the slide 64. Both ends of the blade 7 have a shank 71 that fits into the slot 65. After the shank 71 is inserted into the slot 65, a screw is used to thread the shank 71 through the base 61, so that the blade 7 is fixed to the slide 64.

[0037] When the blade 7 becomes dull, it needs to be replaced. Simply remove the screws and pull the insert 71 out of the slot 65.

[0038] A sliding cavity 63 is formed on the surface of the seat 61, and the slide 64 slides vertically in the sliding cavity 63. A pressure plate 66 is provided on the top of the sliding cavity 63, and a spring is connected between the pressure plate 66 and the slide 64. A stud 67 is threaded through the top of the seat 61 and is rotatably connected to the pressure plate 66.

[0039] The blade 7 is integrated with the slide 64. The spring force allows the blade 7 to have an elastic lifting space, so that the blade 7 is in elastic compression contact with the upper surface of the middle mold body 4, which enables the blade 7 to stably cut the thin rubber layer. By rotating the stud 67, the height of the pressure plate 66 is adjusted, so that the downward pressure on the blade 7 is adjusted, which is used to control the blade 7 to maintain a suitable cutting pressure.

[0040] The downward pressure of the blades 7 distributed from back to front gradually increases at both ends. The blades 7 with small elasticity scrape off the thin layer of rubber first, and the scraping force of the rear blades 7 on the thin layer of rubber increases one by one, forming a multi-level enhanced scraping effect.

[0041] like Figure 3 , 5 As shown in Figure 6, a groove 14 is opened on the surface of the bracket 11, and the support arm 62 is vertically and elastically connected to the groove 14 by a spring, so that the blade 7 has a lifting space on the surface of the middle mold. Track bars 42 are set on both sides of the middle mold body 4, and the two ends of the track bars 42 have parallel inclined surfaces. The seat body 61 is fixed with a contact handle 8, and the contact handle 8 presses against the track bar 42.

[0042] Under normal conditions, the support arm 62 is kept at a fixed height by the balancing spring force. At this time, the blade of the blade 7 does not contact the upper surface of the middle mold body 4, and the handle 8 is horizontally aligned with the track bar 42. When the first cylinder 2 pushes the middle mold body 4 to extend outward for demolding, the handle 8 is pushed down by the inclined surface at the front end of the track bar 42, causing the handle 8 to move along the bottom edge of the track bar 42. The support arm 62 overcomes the spring force and descends, causing the blade 7 to descend and contact the upper surface of the middle mold body 4 to scrape the material. After the blade 7 has completely scraped the material, the handle 8 moves to the rear end of the track bar 42 and disengages from contacting the bottom of the track bar 42. The blade holder 6 and the blade 7 rise again to reset.

[0043] After demolding and loading of each mold cavity, the first cylinder 2 drives the middle mold body 4 to move and reset. The contact handle 8 moves upward due to the contact with the inclined surface at the rear end of the track bar 42, so that the contact handle 8 moves along the top edge of the track bar 42. The support arm 62 rises against the elastic force, so that the blade 7 rises further away from the upper surface of the middle mold body 4, reducing the wear of the blade 7 and preventing the blade 7 from contacting the freshly applied rubber material.

Claims

1. A rubber shock absorber injection molding equipment, characterized in that, include: Platform (1), and a support (11) for bearing hydraulic cylinder (12) is set above the platform (1). The hydraulic cylinder (12) is used to drive the upper mold body (3) to move vertically up and down; The middle mold body (4) is located below the upper mold body (3). The lower mold body (5) is connected to the middle mold body (4) via a lifting assembly. Several mold cavities are evenly arranged on the surface of the middle mold body (4). Blade (7), the blade (7) is set on the upper surface of the middle mold body (4), and the two ends of the blade (7) are connected to the bracket (11) through the blade holder (6); The extension component is used to drive the middle mold body (4), the lower mold body (5) and the upper mold body (3) to move and misalign. During the movement of the middle mold body (4), the blade (7) scrapes off the thin rubber layer on its upper surface. The blade holder (6) includes a base (61), which is connected by a support arm (62). A slide (64) is provided on the surface of the base (61), and a slot (65) is provided on the surface of the slide (64). The blade (7) has a shank (71) at both ends that are adapted to the slot (65). After the shank (71) is inserted into the slot (65), a screw is used to thread the shank (71) through the base (61) to fix the blade (7) to the slide (64). The surface of the seat (61) is provided with a sliding cavity (63), the slide (64) slides vertically in the sliding cavity (63), the top of the sliding cavity (63) is provided with a pressure plate (66), a spring is connected between the pressure plate (66) and the slide (64), and the stud (67) is threaded through the top of the seat (61) and rotatably connected to the pressure plate (66). The support (11) has a groove (14) on its surface. The support arm (62) is vertically and elastically connected to the groove (14) by a spring, so that the blade (7) has a lifting space on the surface of the middle mold. The middle mold body (4) is provided with rails (42) on both sides. The two ends of the rails (42) have parallel inclined surfaces. The seat (61) is fixed with a handle (8). The handle (8) presses against the rails (42).

2. The rubber shock absorber processing injection molding equipment according to claim 1, characterized in that, The angle between the blade (7) and the upper surface of the middle mold body (4) is 20°-60°.

3. The rubber shock absorber processing injection molding equipment according to claim 2, characterized in that, Multiple blades (7) are arranged in parallel, and the gap between adjacent blades (7) is greater than 2cm.

4. The rubber shock absorber processing injection molding equipment according to claim 1, characterized in that, The lifting assembly includes a second cylinder (43) and a sliding column (44). The middle mold body (4) and the lower mold body (5) are vertically slidably connected by multiple sliding columns (44). The second cylinder (43) is used to push the lower mold body (5) to move up and down.

5. The rubber shock absorber processing injection molding equipment according to claim 1, characterized in that, The extended component includes a first cylinder (2), which is used to push the middle mold body (4) to move horizontally in a straight line. The middle mold body (4) slides horizontally in a straight line with the platform (1) through two guide frames (41).

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