CN210757154U

CN210757154U - Mold clamping device

Info

Publication number: CN210757154U
Application number: CN201921169008.5U
Authority: CN
Inventors: 王军; 罗代忠
Original assignee: Tianjin Ruibao Jiaxing Technology Co ltd
Current assignee: Tianjin Ruibao Jiaxing Technology Co ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-06-16
Anticipated expiration: 2029-07-24

Abstract

The utility model discloses a mold clamping device, the on-line screen storage device comprises a base, base upper end four corners department has all welded a supporting bench, the both sides of base all are provided with a movable clamp plate, every movable clamp plate all passes through the dwang rotation with two supporting benches of homonymy and is connected, movable clamp plate lower extreme is opened there is the rotation through-hole, base central point puts the welding and has the locating piece, locating piece interference fit is connected with the bearing, the inner circle fixedly connected with screw rod of bearing, the screw rod right-hand member is opened there is the spout, threaded connection has two nuts on the screw rod, nut outer wall threaded connection has the. The utility model discloses the clamping dynamics to the mould keeps unanimous and adjustable, can guarantee easily the accuse to the clamping dynamics of mould, avoids the clamping not tightly to lead to adding man-hour dislocation promptly, has avoided the clamping too tightly to lead to the impression scheduling problem to appear in the mould body again.

Description

Mold clamping device

Technical Field

The utility model relates to a mould production processing technology field especially relates to mould clamping device.

Background

The mould is various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The processing of the appearance of an article is realized mainly through the change of the physical state of a formed material. The element has the name of "industrial mother".

The clamping device adopted by the existing mould during polishing is inconvenient to clamp moulds of different models, the applicability is low, the clamping force of the clamping device on the mould cannot be adjusted, the precision mould is easy to loosen during processing, and the use requirement cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a mold clamping device.

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

the mold clamping device comprises a base, wherein supporting tables are welded at four corners of the upper end of the base, two movable clamping plates are arranged on two sides of the base, each movable clamping plate is rotatably connected with the two supporting tables on the same side through a rotating rod, a friction pad is glued at the upper end of each movable clamping plate, a concave table is welded in the middle of each supporting table on the left side and the right side, a rotating through hole is formed in the lower end of each movable clamping plate, a positioning block is welded in the central position of the base, the positioning block is connected with a bearing in an interference fit manner, a screw rod is fixedly connected to the inner ring of the bearing, a sliding groove is formed in the right end of the screw rod, the sliding groove is connected with a driven wheel in a sliding manner through a key, the driven wheel is connected with a power, and a spring is welded at one side of the positioning ring, which is close to the movable clamping plate at the same side.

Preferably, the screw rod runs through and rotates the through-hole, the size of rotating the through-hole requires that movable clamp plate can not touch the screw rod when rotating, slide in the spout from the driving wheel, the welding has concave type platform in the middle of the brace table at screw rod both ends, concave type bench is with the one deck rubber membrane.

Preferably, bolts are welded on two sides of the positioning block, through holes matched with the bolts are formed in the nuts, the screw threads at two ends of the bearing are opposite in rotating direction, and the two nuts are respectively in threaded connection on two sides of the bearing.

Preferably, each spring is welded with a baffle ring, the baffle ring is connected with the screw in a sliding manner, and the diameter of the outer ring of the baffle ring is larger than that of the rotating through hole.

Preferably, the power mechanism comprises a driving wheel and a motor, the driving wheel is meshed with a driven wheel, an output shaft of the motor is welded and fixed with the driving wheel, and the motor is fixed on the base through bolts.

Preferably, the hydraulic mechanism comprises a second loop bar, a second sliding rod is connected in the second loop bar in a sealing and sliding manner, the second loop bar is fixedly communicated with a conduit, one end, far away from the second loop bar, of the conduit is fixedly communicated with a first loop bar, a first sliding rod is connected in the first loop bar in a sealing and sliding manner, and the first loop bar is welded on the base.

The utility model discloses in, put the mould on concave type bench, the motor drives the screw rod and rotates, and the nut slides to movable clamp plate's direction, keeps off the ring and promotes movable clamp plate and rotate, and movable clamp plate presss from both sides tight mould back, and movable clamp plate contact second slide bar makes it slide and extrude liquid in the loop bar, and liquid promotes first slide bar to sliding from the direction of driving wheel, when first slide bar promotes from the driving wheel and breaks away from the meshing, loses power stall from the driving wheel, and the screw rod also stall.

When the position of the positioning ring is fixed, the compression degree of the spring is the same when the mold is clamped no matter how the size of the mold is, namely the clamping force applied to the molds with different sizes is the same; if the clamping force to the mould is required to be changed, the initial distance between the movable clamping plate and the retaining ring can be changed by adjusting the position of the positioning ring on the nut, so that the compression degree of the spring when the mould is clamped is changed, and the purpose of changing the clamping force to the mould is realized.

Drawings

Fig. 1 is a front sectional view of a mold clamping device according to the present invention;

fig. 2 is a partially enlarged view of a portion a of the mold clamping device according to the present invention;

fig. 3 is a partially enlarged view of a portion B of the mold clamping device according to the present invention;

fig. 4 is a C-direction sectional view of the mold clamping device according to the present invention.

In the figure: the device comprises a base 1, a movable clamping plate 2, a supporting table 3, a friction pad 4, a concave table 5, a bearing 6, a driven wheel 7, a sliding chute 8, a screw rod 9, a first sliding rod 10, a first loop bar 11, a guide tube 12, a second sliding rod 13, a second loop bar 14, a positioning block 15, a bolt 16, a positioning ring 17, a spring 18, a retaining ring 19, a rotating through hole 20, a driving wheel 21, a motor 22 and a nut 23.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a mold clamping device comprises a base 1, wherein supporting tables 3 are welded at four corners of the upper end of the base 1, two movable clamping plates 2 are arranged at two sides of the base 1, each movable clamping plate 2 is rotatably connected with two supporting tables 3 at the same side through a rotating rod, a friction pad 4 is glued at the upper end of each movable clamping plate 2, the friction pad 4 can increase the friction force between each movable clamping plate 2 and a mold to prevent the mold from sliding off the movable clamping plates 2, a rotating through hole 20 is formed at the lower end of each movable clamping plate 2, a positioning block 15 is welded at the central position of the base 1, a bearing 6 is connected with the positioning block 15 in an interference fit manner, a screw 9 is fixedly connected to the inner ring of the bearing 6, a chute 8 is formed at the right end of the screw 9, a driven wheel 7 is connected with the chute 8 through a key in a sliding manner, a, the outer wall of the nut 23 is in threaded connection with a positioning ring 17, and one side of the positioning ring 17, which is close to the movable clamping plate 2 on the same side, is welded with a spring 18.

Screw rod 9 runs through rotation through-hole 20, and the size that rotates through-hole 20 requires that movable clamp plate 2 can not touch screw rod 9 when rotating, slides in spout 8 from driving wheel 7, and the welding has concave type platform 5 in the middle of the movable clamp plate 2 at screw rod 9 both ends, and concave type platform 5 is last to have one deck rubber film, and the inner wall has certain elasticity when guaranteeing to press from both sides tight mould, prevents that the damage from appearing in the mould.

Bolt 16 has all been welded to the both sides of locating piece 15, has seted up on the nut 23 with 16 complex through-holes of bolt, the screw thread of screw rod 9 at bearing 6 both ends is turned round to opposite, two nut 23 threaded connection respectively in bearing 6's both sides, when screw rod 9 rotated and drives nut 23 and remove, bolt 16 and nut 23 cooperation can avoid it to take place to rotate, guarantee that it can rotate along with screw rod 9 and produce the translation effect.

Each spring 18 is welded with a retaining ring 19, the retaining rings 19 are connected with the screw rods 9 in a sliding mode, the diameter of the outer ring of each retaining ring 19 is larger than that of each rotating through hole 20, each power mechanism comprises a driving wheel 21 and a motor 22, the driving wheel 21 is meshed with the corresponding driven wheel 7, the output shaft of each motor 22 is fixedly welded with the corresponding driving wheel 21, and the corresponding motor 22 is fixed on the base 1 through bolts.

The hydraulic mechanism comprises a second loop bar 14, a second sliding rod 13 is connected in the second loop bar 14 in a sliding mode in a sealing mode, the second loop bar 14 is fixedly communicated with a guide pipe 12, one end, far away from the second loop bar 14, of the guide pipe 12 is fixedly communicated with a first loop bar 11, the first loop bar 11 is connected in the first loop bar 11 in a sliding mode in a sealing mode in a sliding mode, and the first loop bar 11 is welded on the base 1.

In the utility model, the driving wheel 7 and the driving wheel 21 are engaged in the initial state, the mold is placed on the concave table 5, the motor 22 is started to drive the driving wheel 21 to rotate, the driven wheel 7 rotates along with the driving wheel 21, the driven wheel 7 drives the screw rod 9 to rotate, the nuts 23 on both sides of the bearing 6 slide towards both sides because the screw threads on both sides of the positioning block 15 are opposite because of the screw rod 9, the baffle ring 19 on the nut 23 contacts the movable clamp plate 2 and pushes the movable clamp plate to rotate around the rotating rod, when the movable clamp plate 2 contacts the mold, the baffle ring 19 is tightly attached to the movable clamp plate 2 and does not move, at the moment, the nut 23 continues to move and compresses the spring 18, the nut 23 continues to move, the second slide bar 13 contacts the movable clamp plate 2 and pushes the second slide bar 13 to move towards the direction of the positioning block 15, the second slide bar 13 starts to extrude liquid in the, the first sliding rod 10 is pushed to move towards the driven wheel 7, the first sliding rod 10 contacts the driven wheel 7 and pushes the driven wheel 7 to be disengaged from the driven wheel 21, when the driven wheel 7 is disengaged, the driven wheel 7 has no power source and stops rotating, the screw rod 9 also stops rotating, the nut 23 stops moving and stays at the current position, and at the moment, the movable clamping plate 2 clamps the mold.

In the utility model, no matter how big or small the mold is, when the driven wheel 7 is disengaged from the driving wheel 21, the position of the second slide bar 13 relative to the second loop bar 14 is fixed, namely the relative position of the movable clamping plate 2 and the nut 23 is fixed at this time, if the position of the positioning ring 17 is not changed, the compression amount of the spring 18 is always consistent, so that no matter what size the utility model is used for clamping the mold, the utility model discloses the clamping force to the mold is kept consistent; if the clamping force needs to be changed, only the position of the positioning ring 17 needs to be changed, and the compression amount of the spring 18 is changed accordingly, so that the purpose of changing the clamping force is achieved.

The utility model discloses in, the clamping dynamics to the mould keeps unanimous and adjustable, can guarantee easily the accuse to the clamping dynamics of mould, avoids the clamping to lead to promptly and add the processing dislocation untight, has avoided the clamping too tight to lead to the impression scheduling problem to appear in the mould body again.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The mold clamping device comprises a base (1) and is characterized in that supporting tables (3) are welded at four corners of the upper end of the base (1), a movable clamping plate (2) is arranged on each of two sides of the base (1), each movable clamping plate (2) is rotatably connected with two supporting tables (3) on the same side through a rotating rod, a friction pad (4) is glued at the upper end of each movable clamping plate (2), a rotating through hole (20) is formed in the lower end of each movable clamping plate (2), a positioning block (15) is welded at the central position of the base (1), a bearing (6) is connected with the positioning block (15) in an interference fit manner, a screw rod (9) is fixedly connected with an inner ring of the bearing (6), a sliding groove (8) is formed in the right end of the screw rod (9), the sliding groove (8) is slidably connected with a driven wheel (7, threaded connection has two nuts (23) on screw rod (9), is close to spout (8) one side nut (23) lower extreme welding has hydraulic pressure mechanism, nut (23) outer wall threaded connection has holding ring (17), one side welding that holding ring (17) are close to homonymy movable clamp plate (2) has spring (18).

2. The mold clamping device according to claim 1, wherein the screw (9) penetrates through the rotation through hole (20), the size of the rotation through hole (20) requires that the movable clamping plate (2) does not touch the screw (9) when rotating, the driven wheel (7) slides in the sliding groove (8), the concave table (5) is welded in the middle of the supporting tables (3) at two ends of the screw (9), and a layer of rubber film is attached to the concave table (5).

3. The mold clamping device according to claim 1, wherein bolts (16) are welded on both sides of the positioning block (15), through holes matched with the bolts (16) are formed in the nuts (23), the screw threads of the screw rod (9) at both ends of the bearing (6) are opposite in rotation direction, and the two nuts (23) are respectively in threaded connection with both sides of the bearing (6).

4. The mold clamping device according to claim 1, characterized in that a stop ring (19) is welded on each spring (18), the stop ring (19) is connected with the screw (9) in a sliding manner, and the diameter of the outer ring of the stop ring (19) is larger than that of the rotating through hole (20).

5. The mold clamping device according to claim 1, wherein the power mechanism comprises a driving wheel (21) and a motor (22), the driving wheel (21) is meshed with the driven wheel (7), an output shaft of the motor (22) is welded and fixed with the driving wheel (21), and the motor (22) is fixed on the base (1) by using bolts.

6. The mold clamping device according to claim 1, characterized in that the hydraulic mechanism comprises a second sleeve rod (14), the second sleeve rod (14) is connected with a second sliding rod (13) in a sliding and sealing manner, the second sleeve rod (14) is fixedly communicated with a conduit (12), one end of the conduit (12) far away from the second sleeve rod (14) is fixedly communicated with a first sleeve rod (11), the first sleeve rod (11) is connected with a first sliding rod (10) in a sliding and sealing manner, and the first sleeve rod (11) is welded on the base (1).