A slider demolding mold for thin-walled products

Abstract

This utility model provides a slider demolding mold for thin-walled products, relating to the field of mold technology. It includes: a base; an L-shaped mounting arm fixed to the top surface of the base, with two hydraulic cylinders fixed on the mounting arm. The extended ends of the two hydraulic cylinders are fixed to a sealing cover. The sealing cover is provided with an injection pipe for injecting molding liquid. Two sliding seats are fixed in a mirror shape on the sealing cover, each with a sliding drive block. An adjusting rod rotates on the two sliding seats. The mold closing assembly of this application is ingeniously designed. The threads at the left and right ends of the adjusting rod are reversed, allowing the two drive blocks to adjust synchronously inward during rotation. This quickly addresses wear issues at the contact point between the drive blocks and the slider mold seat, ensuring precise mold closing. The locking screw locks the adjusting rod by pressing against the drive block, effectively preventing the adjusting rod from loosening and preventing gaps in the slider mold seat, thereby reducing burrs caused by gaps and improving product quality.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology, and more specifically, it relates to a slider demolding mold for thin-walled products. Background Technology

[0002] Sliding molds are a type of mold structure commonly used in industrial production such as injection molding. Their core feature is that they enable the molding and demolding of complex-shaped plastic parts through a sliding "sliding" component. Sliding molds are required when processing thin-walled plastic products.

[0003] After a period of use, the drive block used to move the slider mold seat in the existing device will wear out, which will cause gaps when the slider mold seat closes, and thus make it easy for burrs to appear. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a slider demolding mold for thin-walled products, which solves the problem that the drive block used to drive the slider mold seat to move will wear after a period of use in the existing device. This will cause gaps to appear when the slider mold seat is closed, which will easily lead to burrs.

[0005] The purpose and effect of this utility model of a slider demolding mold for thin-walled products are achieved by the following specific technical means:

[0006] A slider demolding mold for a thin-walled product includes a base; an L-shaped mounting arm is fixed to the top surface of the base, and two hydraulic cylinders are fixed on the mounting arm. The protruding ends of the two hydraulic cylinders are fixed to a sealing cover. The sealing cover is provided with a filling tube for injecting injection liquid. Two sliding seats are fixed in a mirror shape on the sealing cover. A driving block slides on each sliding seat. An adjusting rod rotates on the two sliding seats. The left and right ends of the adjusting rod are threaded to the two driving blocks respectively, and the thread directions of the left and right ends of the adjusting rod are opposite.

[0007] Furthermore, a locking screw is threadedly connected to the handle of the adjusting rod, and one end of the locking screw abuts against a driving block on the right side.

[0008] Furthermore, the sliding seat, driving block, adjusting rod, and locking screw together form the mold closing assembly; a cone is fixed at the center of the top surface of the base, and two rectangular block-shaped connecting bases are symmetrically welded to the top surface of the base. Two stepped guide rods slide on each connecting base. The right end of the two guide rods on the left is fixed to a slider mold seat on the left, and the left end of the two guide rods on the right is fixed to a slider mold seat on the right. When the inner sides of the two slider mold seats contact each other, the mold closing is completed.

[0009] Furthermore, each of the guide rods is fitted with a helical spring. The outer ends of the four helical springs contact the steps of the four guide rods respectively. The inner ends of the two helical springs on the left side contact a slider mold seat on the left side, and the inner ends of the two helical springs on the right side contact a slider mold seat on the right side.

[0010] Furthermore, both drive blocks are right-angled trapezoidal block structures, and the two drive blocks are located above the two slider mold seats.

[0011] Furthermore, the cone, connecting base block, guide rod, slider mold seat, helical spring, mounting arm, hydraulic cylinder and sealing cover together constitute the mold assembly. The mounting arm is equipped with a demolding assembly, which consists of a protrusion and a spring rod. The front end face of the mounting arm is welded with protrusions at equal intervals. The protrusions are semi-cylindrical structures. A spring rod is welded to the rear side of the outer wall of the sealing cover. The protruding end of the spring rod contacts the front end face of the mounting arm. When the sealing cover moves upward, the spring rod and the protrusion are in a continuous engagement state.

[0012] Furthermore, the rear end of the spring rod is polished, and after polishing, the rear end of the spring rod has an arc-shaped structure.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The mold clamping assembly of this application is ingeniously designed. The threads at the left and right ends of the adjusting rod are reversed. When rotated, it can drive the two driving blocks to adjust inward synchronously. This can quickly address the wear problem at the contact point between the driving blocks and the slider mold seat, ensuring accurate mold clamping. The locking screw locks the adjusting rod by pressing against the driving block, effectively preventing the adjusting rod from loosening and preventing gaps from forming in the slider mold seat. This reduces burrs caused by gaps and improves product quality.

[0015] In the mold assembly of this application, the guide rod and the helical spring cooperate to provide stable guidance and buffer for the sliding mold seat to close the mold, ensuring that the mold closing action is smooth and reliable; when the mold is closed, the hydraulic cylinder drives the sealing cover and the drive block to move down, which not only completes the mold closing but also achieves sealing. The integrated action improves efficiency.

[0016] This application utilizes a demolding assembly to generate vibration when the sealing cover rises, with the spring rod continuously and elastically engaging with the protrusion to assist in demolding. Furthermore, the end of the spring rod is arc-shaped and polished to reduce wear on the protrusion and lower maintenance costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the axial view of the slider demolding mold for the thin-walled product of this utility model.

[0018] Figure 2 This is a schematic diagram of the main structure of the slider demolding mold for the thin-walled product of this utility model.

[0019] Figure 3 This is a left-side view of the slider demolding mold for the thin-walled product of this utility model.

[0020] Figure 4 This is a utility model Figure 3 A magnified structural diagram at point A.

[0021] Figure 5 This is a schematic diagram of the axial view structure of the mold clamping assembly of this utility model.

[0022] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0023] 1. Base; 2. Mold assembly; 201. Conical truncated cone; 202. Connecting base block; 203. Guide rod; 204. Sliding mold base; 205. Helical spring; 206. Mounting arm; 207. Hydraulic cylinder; 208. Sealing cover; 3. Mold closing assembly; 301. Sliding seat; 302. Drive block; 303. Adjusting rod; 304. Locking screw; 4. Demolding assembly; 401. Protrusion; 402. Spring rod. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The use of terms such as "a," "an," or "the" in this utility model patent application specification and claims does not indicate a quantity limitation, but rather indicates the presence of at least one. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0026] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0027] Example 1: As shown in the attached document Figure 1 To be continued Figure 5 As shown:

[0028] This utility model provides a slider demolding mold for thin-walled products, including a base 1; an L-shaped mounting arm 206 is fixed on the top surface of the base 1, and two hydraulic cylinders 207 are fixed on the mounting arm 206. The protruding ends of the two hydraulic cylinders 207 are fixed on a sealing cover 208. The sealing cover 208 is provided with a filling tube for injecting injection liquid. Two sliding seats 301 are fixed in a mirror shape on the sealing cover 208. A driving block 302 slides on each sliding seat 301. An adjusting rod 303 rotates on the two sliding seats 301. The left and right ends of the adjusting rod 303 are threaded to the two driving blocks 302 respectively. The thread directions of the left and right ends of the adjusting rod 303 are opposite. After a period of use, the contact position between the driving block 302 and the slider mold seat 204 will be worn. At this time, it is necessary to adjust the position of the driving block 302. During adjustment, the adjusting rod 303 can be rotated. Under the thread drive of the adjusting rod 303, the two driving blocks 302 adjust inward synchronously, which is quick and easy.

[0029] The handle of the adjusting rod 303 is threaded with a locking screw 304. The left end of the locking screw 304 abuts against a drive block 302 on the right side. During use, the locking screw 304 locks the adjusting rod 303, preventing it from loosening and thus preventing gaps from forming at the two slider mold seats 204, ultimately avoiding the formation of burrs due to gaps.

[0030] The sliding seat 301, driving block 302, adjusting rod 303 and locking screw 304 together form the mold closing assembly 3; a cone 201 is fixed at the center of the top surface of the base 1, and two rectangular block-shaped connecting base blocks 202 are symmetrically welded to the top surface of the base 1. Two stepped guide rods 203 slide on each connecting base block 202. The right end of the two guide rods 203 on the left is fixed to a slider mold seat 204 on the left, and the left end of the two guide rods 203 on the right is fixed to a slider mold seat 204 on the right. When the inner sides of the two slider mold seats 204 contact, the mold closing is completed.

[0031] Each guide rod 203 is fitted with a helical spring 205. The outer ends of the four helical springs 205 contact the steps of the four guide rods 203 respectively. The inner ends of the two helical springs 205 on the left side contact a slider mold seat 204 on the left side, and the inner ends of the two helical springs 205 on the right side contact a slider mold seat 204 on the right side.

[0032] Both drive blocks 302 are right-angled trapezoidal block structures. The two drive blocks 302 are located above the two slider mold seats 204. When the mold is closed, the two hydraulic cylinders 207 are driven to extend. The hydraulic cylinders 207 drive the sealing cover 208 and drive blocks 302 to move downward. The mold closing action can be completed under the drive of the two drive blocks 302. After the mold is closed, the two hydraulic cylinders 207 are driven again. At this time, the sealing cover 208 completes the sealing of the two slider mold seats 204.

[0033] The mold assembly 2 is composed of a cone 201, a connecting base block 202, a guide rod 203, a slider mold seat 204, a helical spring 205, a mounting arm 206, a hydraulic cylinder 207, and a sealing cover 208. A demolding assembly 4 is mounted on the mounting arm 206. The demolding assembly 4 consists of a protrusion 401 and a spring rod 402. The protrusion 401 is welded at equal intervals on the front end face of the mounting arm 206. The protrusion 401 has a semi-cylindrical structure. A spring rod 402 is welded to the rear side of the outer wall of the sealing cover 208. The extended end of the spring rod 402 contacts the front end face of the mounting arm 206. When the sealing cover 208 moves upward, the spring rod 402 and the protrusion 401 are in a continuous snap-fit ​​state. Vibration can be generated through the continuous elastic snap-fit ​​between the spring rod 402 and the protrusion 401, and the vibration can achieve demolding assistance.

[0034] Example 2: Based on Example 1, the rear end of the spring rod 402 is polished. After polishing, the rear end of the spring rod 402 has an arc-shaped structure. During use, because the rear end of the spring rod 402 has an arc-shaped structure, the wear of the spring rod 402 and the protrusion 401 can be reduced, thus reducing the subsequent maintenance cost.

[0035] Working principle: During mold closing, the two hydraulic cylinders 207 are extended, driving the sealing cover 208 and the drive block 302 to move downwards. Under the drive of the two drive blocks 302, the mold closing action is completed. After mold closing, the two hydraulic cylinders 207 continue to be driven. At this time, the sealing cover 208 completes the sealing of the two slider mold seats 204, and then injection molding is performed. After injection molding is completed, the hydraulic cylinders 207 are driven to retract and open the mold. During the mold opening process, the continuous elastic engagement between the spring rod 402 and the protrusion 401 can generate vibration, which can assist in demolding. After a period of use, the contact position between the drive block 302 and the slider mold seat 204 will be worn. At this time, the position of the drive block 302 needs to be adjusted. During adjustment, the adjusting rod 303 can be rotated. Under the thread drive of the adjusting rod 303, the two drive blocks 302 are adjusted inwards synchronously.

[0036] Although this application has been described with reference to the foregoing embodiments, those skilled in the art will understand that various changes can be made without departing from the spirit and scope of this application as defined by the appended claims. While this specification contains details of many specific implementations, these should not be construed as limiting the scope of the claims, but rather as descriptions of features specific to particular embodiments. The scope of this application is defined by the appended claims and their equivalents, and is not limited to the embodiments described above.

Claims

1. A slider demolding mold for thin-walled products, characterized in that: The system includes a base (1); an L-shaped mounting arm (206) is fixed to the top surface of the base (1), and two hydraulic cylinders (207) are fixed on the mounting arm (206). The protruding ends of the two hydraulic cylinders (207) are fixed on the sealing cover (208). The sealing cover (208) is provided with a filling tube for injecting injection liquid. Two sliding seats (301) are fixed in a mirror shape on the sealing cover (208). A driving block (302) slides on each sliding seat (301). An adjusting rod (303) rotates on the two sliding seats (301). The left end and the right end of the adjusting rod (303) are threaded to the two driving blocks (302) respectively. The thread directions of the left end and the right end of the adjusting rod (303) are opposite.

2. The slide knockout mold for thin-walled products of claim 1, wherein: The handle of the adjusting rod (303) is threaded with a locking screw (304), and the left end of the locking screw (304) abuts against a driving block (302) on the right side.

3. The slide knockout mold for thin-walled products of claim 2, wherein: The sliding seat (301), driving block (302), adjusting rod (303) and locking screw (304) together form the mold closing assembly (3); a cone (201) is fixed at the center of the top surface of the base (1), and two rectangular block-shaped connecting base blocks (202) are symmetrically welded to the top surface of the base (1). Two stepped guide rods (203) slide on each connecting base block (202). The right side of the two guide rods (203) on the left is fixed to a slider mold seat (204) on the left, and the left side of the two guide rods (203) on the right is fixed to a slider mold seat (204) on the right. When the inner sides of the two slider mold seats (204) are in contact, the mold closing is completed.

4. The slide knockout mold for thin-walled products of claim 3, wherein: Each guide rod (203) is fitted with a helical spring (205). The outer ends of the four helical springs (205) are in contact with the steps of the four guide rods (203). The inner ends of the two helical springs (205) on the left are in contact with a slider mold seat (204) on the left, and the inner ends of the two helical springs (205) on the right are in contact with a slider mold seat (204) on the right.

5. The slide knockout mold for thin-walled products of claim 4, wherein: Both drive blocks (302) are right-angled trapezoidal block structures, and the two drive blocks (302) are located above the two slider mold seats (204).

6. The slide knockout mold for thin-walled products of claim 5, wherein: The cone (201), connecting base block (202), guide rod (203), slider mold seat (204), helical spring (205), mounting arm (206), hydraulic cylinder (207) and sealing cover (208) together form mold assembly (2). A demolding assembly (4) is installed on the mounting arm (206). The demolding assembly (4) consists of a protrusion (401) and a spring rod (402). The front end face of the mounting arm (206) is welded with protrusions (401) at equal intervals. The protrusions (401) are semi-cylindrical structures. A spring rod (402) is welded to the rear side of the outer wall of the sealing cover (208). The extended end of the spring rod (402) contacts the front end face of the mounting arm (206). When the sealing cover (208) moves upward, the spring rod (402) and the protrusion (401) are in a continuous snap-fit ​​state.

7. The slide knockout mold for thin-walled products of claim 6, wherein: The rear end of the spring rod (402) is polished, and the rear end of the spring rod (402) is arc-shaped after polishing.

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