CN114986754B

CN114986754B - Chair back plate lining plate mould

Info

Publication number: CN114986754B
Application number: CN202210467474.1A
Authority: CN
Inventors: 朱海兵
Original assignee: Taizhou Sanpu Mould Co ltd
Current assignee: Taizhou Sanpu Mould Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2023-06-16
Anticipated expiration: 2042-04-29
Also published as: CN114986754A

Abstract

The utility model relates to a back of chair board bushing plate mould, including movable mould and cover half, the die cavity has been seted up on cover half and the movable mould, still includes driving piece one, set up the first groove of intercommunication cover half die cavity on the cover half, swing joint has the movable block in the first groove, a driving piece drive movable block is movable in the first groove, the recess that turns over the border matching with the part that back of the chair board bushing plate is located first groove is seted up on the side of movable block towards the side of movable mould, when the movable block removes to keeping away from the back of the chair board bushing plate, there is the clearance between movable block and the back of the chair board bushing plate. When the movable mould is used for clamping the movable mould to form the back plate lining plate of the chair, the grooves on the movable blocks serve as the component parts of the mould grooves of the movable mould, so that the back plate lining plate of the chair is formed smoothly, when the formed back plate lining plate of the chair needs to be taken down, the external tool is used for or a hand is stretched into a gap to apply force on the back plate lining plate of the chair, so that the back plate lining plate of the chair is separated from the fixed mould, and an operator can conveniently take down the formed back plate lining plate of the chair on the mould.

Description

Chair back plate lining plate mould

Technical Field

The application relates to the field of molds, in particular to a chair back plate lining mold.

Background

The mould is used for producing various moulds and tools of the needed products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods in industry. In short, a mold is a tool used to make a molded article, which is made up of various parts, with different molds being made up of different parts. The processing of the appearance of the article is realized mainly by changing the physical state of the formed material.

The prior art chair back plate lining plate mold is shown in fig. 1, and comprises a movable mold 2 and a fixed mold 1, wherein a mold cavity 11 is formed in the fixed mold 1 and the movable mold 2, when the movable mold 2 is combined on the fixed mold 1, the two mold cavities 11 jointly form a molding cavity of a chair back plate lining plate 3, after the chair back plate lining plate 3 is molded, the movable mold 2 moves towards one side far away from the fixed mold 1 to be far away from the fixed mold 1, at the moment, the chair back plate lining plate 3 is positioned on the fixed mold 1, and the circumferential edge of the chair back plate lining plate 3 is arranged in an outwards-turned shape and is tightly attached to the fixed mold 1, so that an operator takes down the chair back plate lining plate 3.

The related technical scheme has the following defects: because the shape of the back plate of the chair is special, an operator has few places where force can be applied when taking the back plate of the chair, so that the back plate of the chair is difficult to take off.

Disclosure of Invention

In order to facilitate an operator to take down the seat back plate lining plate formed on the seat back plate lining plate mould, the application provides the seat back plate lining plate mould.

The application provides a back of chair board lining board mould adopts following technical scheme:

the utility model provides a back of chair board lining board mould, includes movable mould and cover half, the die cavity has been seted up on cover half and the movable mould, and when the movable mould combination was on the cover half, two die cavities formed the shaping chamber of chair backplate welt jointly, still include driver one, set up the first groove of intercommunication cover half die cavity on the cover half, first inslot swing joint has the movable block, driver one drive movable block is at first inslot activity, the recess that turns over the border and match with the part that the back of the chair board lining board is located first inslot is seted up on the side of movable block towards the movable mould, when the movable block removes to keeping away from chair backplate welt, there is the clearance between movable block and the back of the chair board lining board after the shaping.

Through adopting above-mentioned technical scheme, remove in first inslot through driving piece one drive movable block, when movable mould cover half compound die comes the shaping chair backplate welt, the recess on the movable block acts as the component part of cover half die groove, make the back of the chair board welt shaping smoothly, when the chair backplate welt after taking off the shaping, driving piece one drive movable block removes to keeping away from the chair backplate welt, then stretch into the one end of application of force in the clearance at back of the chair board welt with the help of external instrument or with the hand, make back of the chair board welt break away from the cover half, make things convenient for the back of the chair board welt after the shaping on the back of the chair board welt mould to take off by the operating personnel.

Preferably, the movable block comprises a driving piece II, a driving block and a driven block, the driving block is connected in the first groove in a sliding manner along the moving direction perpendicular to the movable die, the driving piece I drives the driving block to slide on the first groove, a sliding groove is formed in the side surface of the driving block, facing the movable die, of the driving block, an inclined surface is formed in the bottom wall of the sliding groove, the distance from one end of the inclined surface, far away from the chair back plate lining plate, to one end, close to the chair back plate lining plate, of the movable die is gradually reduced, the driven block is connected on the sliding groove in a sliding manner along the inclined direction parallel to the inclined surface, and the groove is formed in the side surface of the driven block, facing the movable die;

when the chair back board lining board is in the forming process, the passive block is abutted on the inner wall of one side of the first groove, which is close to the chair back board lining board;

the limiting groove is formed in the inclined surface, the driven rod is fixed to the driven block and is slidably connected in the limiting groove along the sliding direction parallel to the driven block, when the driven rod slides in the limiting groove, the driven block is driven by the driving piece II to be always abutted to the inner wall of one side of the first groove, which is close to the chair back plate lining plate, and when the driven rod moves to be abutted to the end wall of one end of the limiting groove, which is close to the chair back plate lining plate, the driven block moves to the lower side of the chair back plate lining plate and can move along with the driving block.

Through adopting above-mentioned technical scheme, after back of the chair board bushing board shaping, need take down back of the chair board bushing board, use driving piece one drive initiative piece to move towards keeping away from back of the chair board bushing board side this moment, in this process, the passive piece is on first groove in the effect of driving piece two all the time, because can produce certain difference in height between passive piece and the initiative piece under the effect on inclined plane, the passive piece can be on the inclined plane of initiative piece all the time under self gravity effect and driving piece two effect this moment, also can regard as the passive piece to move towards keeping away from movable mould one side, because the border of chair backplate welt is the setting of turning over a shape, make the passive piece directly follow the initiative piece and move and can make the passive piece card on back of the chair board bushing board, so need make the passive piece move down to break away from the chair backplate back of the chair earlier, then can follow the initiative piece and move away together.

Preferably, the first driving part is a penetrating rod, the penetrating rod is fixed on the movable mould, an inclined groove is formed in the driving block, the inclined groove is located on the outer side of the formed back plate lining plate, the distance from one end of the inclined groove, which is close to the back plate lining plate of the chair, to one end, which is far away from the back plate lining plate of the chair, of the movable mould is gradually increased, and the penetrating rod penetrates through and is connected in the inclined groove in a sliding manner along the length direction parallel to the inclined groove.

Through adopting above-mentioned technical scheme, the movable mould can drive the pole of wearing and remove in the in-process that moves in a side of keeping away from the cover half, wears the pole and then drives the initiative piece and slide in a side of keeping away from chair backplate welt on first groove, makes the movable mould at the in-process of opening the mould, accomplishes the separation of passive piece and back of the chair board welt voluntarily.

Preferably, the device further comprises a third driving part and an auxiliary separating device, wherein the top block is slidingly connected to the fixed die along the sliding direction perpendicular to the driving block, the third driving part drives the top block to slide on the fixed die, the top block is slidingly connected with the separating block along the sliding direction parallel to the top block, when the back plate lining plate of the chair is in the forming process, the third driving part drives the top block and the separating block to be positioned below the movable block, when the movable block moves to be far away from the back plate lining plate of the chair, the third driving part drives the top block to move upwards to be abutted to the separating block on the back plate lining plate of the chair, and the auxiliary separating device is used for driving the separating block to slide on the top block and separating the back plate lining plate of the chair from the fixed die.

Through adopting above-mentioned technical scheme, when the movable block moved to keeping away from the back of the chair welt, three drive kicking blocks of driving piece moved up to the separation piece butt on back of the chair welt, supplementary separator drive separation piece moved on the kicking block this moment, made the kicking block application of force on the separation piece, then the separation piece application of force was on back of the chair welt to with back of the chair welt ejecting to break away from the cover half.

Preferably, the third driving part comprises a first rack, a second rack and a first gear, the first rack is fixed on the driving block, the length direction of the first rack is parallel to the length direction of the driving block, the second rack is fixedly connected on the top block, the length direction of the second rack is parallel to the length direction of the top block, the first gear is rotationally connected on the fixed die, and the first rack and the second rack are both meshed and connected on the first gear.

Through adopting above-mentioned technical scheme, the initiative piece can drive the kicking block simultaneously and slide when removing, reduces the use of driving source.

Preferably, the auxiliary separating device comprises a driving piece IV, a rotating rod and a conical threaded rod, wherein the rotating rod is arranged on the conical threaded rod in a penetrating mode, an acute angle is formed between the axis of the rotating rod and the axis of the conical threaded rod, the rotating rod is rotationally connected to the fixed die along the axis direction and is simultaneously slidingly connected to the fixed die along the sliding direction perpendicular to the separating block, the driving piece IV drives the rotating rod to slide on the fixed die while rotating, and when the separating block moves to be abutted to the back plate of the chair, one end of the conical threaded rod with the minimum outer diameter is abutted to the bottom end of the separating block.

Through adopting above-mentioned technical scheme, after the separation piece butt is on chair backplate welt, four drive bull sticks of driving piece remove in pivoted, the minimum one end butt of conical screw outside diameter is on the separation piece bottom, because the diameter size of conical screw outside diameter is from one end to the other end grow gradually or diminish gradually, in addition the cooperation of bull stick, when the bull stick is in the activity, the conical screw can drive the indirect application of force of separation piece on chair backplate welt, the size of application of force simultaneously grow step by step, can let the better and cover half of back board lining separate, avoid once only forcing the separation to cause the injury to back board lining.

Preferably, the fourth driving piece comprises a third rack, a first rod, a second gear and a driving belt, the first rod and the second rod are respectively connected to the fixed die in a rotating mode, the axial direction of the first rod is parallel to the axial direction of the second rod, the second gear is coaxially and fixedly connected to the second rod, the third rack is fixed to the movable die, the second gear is meshed and connected to the third rack, the driving belt is wound on the first rod and the second rod, the rotating rod is sleeved on the first rod and is connected to the first rod in a sliding mode along the length direction of the first rod, a pushing block is connected to the fixed die in a sliding mode along the axial direction of the second rod in a threaded mode, and one end of the pushing block is sleeved on the first rod and is connected to the rotating rod in a coaxial rotating mode.

Through adopting above-mentioned technical scheme, can drive first pole and second pole through the removal of movable mould and rotate simultaneously, first pole mainly used drive bull stick rotates, and the second pole then drives the bull stick through the drive impeller to remove to realize that the bull stick can remove in the pivoted.

Preferably, the separation block comprises a first block and a second block, the second block is always connected to the top block in a sliding mode along a sliding direction parallel to the top block, the first block is connected to the second block in a sliding mode along a sliding direction parallel to the second block, the second block is used for being abutted to the back plate of the chair back plate, the second block has feasibility, and a first spring is arranged between the first block and the second block.

Through adopting above-mentioned technical scheme, the setting of first spring can make first piece application of force have certain buffer space when on back of the chair board lining board, reduces because hard application of force leads the partly cracked condition emergence of chair backplate lining board.

In summary, the present application includes at least one of the following beneficial technical effects:

through setting up movable block and driving piece one, when the movable mould cover half is closed the die to mould the back of the chair welt, the recess on the movable block acts as the component part of the cover half die cavity, make the back of the chair plate lining plate take shape smoothly, when the back of the chair welt after needing to take off the shaping, drive the movable block and keep away from the back of the chair welt, then force on the back of the chair plate welt makes the back of the chair plate lining plate break away from the cover half, make things convenient for operating personnel to take off the back of the chair plate lining plate after shaping on the back of the chair plate welt mould;

through setting up driving piece four and conical threaded rod, the conical threaded rod can drive the separation piece and indirectly apply force on the back of the chair welt, and the size of application of force grow step by step simultaneously can let back of the chair plate lining board better separate with the cover half, avoids once only forcing the separation to cause the injury to back of the chair plate lining board.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the related art.

Fig. 2 is a schematic overall structure of an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a movable mold according to an embodiment of the present application.

Fig. 4 is a schematic structural view of the movable block of the embodiment of the present application when it is far away from the back plate of the chair back.

Fig. 5 is a schematic structural view of the movable block of the embodiment of the present application when being matched with the chair back board lining board for molding.

Fig. 6 is a schematic structural view of the movable block and the auxiliary separating device when the embodiment of the present application is matched with the back plate of the chair back plate for molding.

Fig. 7 is a cross-sectional view taken along line A-A of fig. 6.

Fig. 8 is a sectional view taken along line B-B of fig. 6.

Fig. 9 is a schematic structural view of the auxiliary separating device for separating the back plate from the fixed mold according to the embodiment of the present application.

Fig. 10 is a sectional view taken along line C-C of fig. 9.

Reference numerals illustrate: 1. a fixed mold; 11. a mold cavity; 12. a first groove; 121. a gap; 13. a movable block; 131. an active block; 1311. a chute; 1312. an inclined surface; 1313. an inclined groove; 1314. a limit groove; 132. a passive block; 1321. a groove; 1322. a passive lever; 133. a second driving piece; 1331. a second spring; 14. a top block; 141. a limiting groove; 15. a third driving member; 151. a first rack; 152. a first gear; 153. a second rack; 16. a first driving member; 161. penetrating the rod; 17. separating the blocks; 171. a first block; 1711. a mating groove; 1712. a first spring; 172. a second block; 1721. a limiting block; 1722. a caulking groove; 18. a bracket; 2. a movable mold; 3. a chair back board lining board; 4. an auxiliary separation device; 41. a driving member IV; 411. a third rack; 412. a first lever; 413. a second lever; 414. a second gear; 415. a transmission belt; 416. a pushing block; 42. a rotating rod; 43. a conical threaded rod.

Detailed Description

The present application is described in further detail below in conjunction with figures 2-10.

The embodiment of the application discloses a chair back plate lining plate mould.

Referring to fig. 2 and 3, a seat back panel mold of the present embodiment includes a movable mold 2 and a fixed mold 1, a bracket 18 is provided on the fixed mold 1, and the bracket 18 supports and fixes the fixed mold 1 on the ground. The movable die 2 is arranged right above the fixed die 1 and driven by an external cylinder, and the moving direction of the movable die 2 is vertical. And a die cavity 11 is formed on the side surface of the side, opposite to the movable die 2 and the fixed die 1, of the movable die 2, when the movable die 2 moves downwards to be abutted against the fixed die 1 to be clamped, the two die cavities 11 jointly form a forming cavity of the chair back plate lining plate 3, pouring casting liquid into the forming cavity, and waiting for cooling to finally form the chair back plate lining plate 3.

Referring to fig. 3 and 4, in order to facilitate the taking of the back plate lining plate 3 of the chair, a first groove 12 which is communicated with the cavity 11 of the fixed mold 1 is formed in the fixed mold 1, a movable block 13 is movably connected in the first groove 12, a driving piece I16 is arranged on the movable mold 2, the driving piece I16 drives the movable block 13 to move in the first groove 12, and a groove 1321 which is matched with the folding edge of the part of the back plate lining plate 3 positioned in the first groove 12 is formed in the top surface of the movable block 13. When the movable block 13 moves to a side located at the back plate 3 and away from the back plate 3, a gap 121 exists between the movable block 13 and the formed back plate 3.

Referring to fig. 4 and 5, when the movable mold 2 and the fixed mold 1 are closed to mold the seat back lining plate 3, the groove 1321 on the movable block 13 serves as a component of the cavity of the fixed mold 1, so that the seat back lining plate 3 is molded smoothly. When the molded back plate lining plate 3 needs to be taken down, the first driving part 16 drives the movable block 13 to move away from the back plate lining plate 3, and then the external tool or the hand stretches into the gap 121 to apply force at one end of the back plate lining plate 3, so that the back plate lining plate 3 is separated from the fixed die 1, and an operator can conveniently take down the molded back plate lining plate 3.

Referring to fig. 6 and 7, the movable block 13 includes an active block 131, a passive block 132, and a second driving member 133. Referring to fig. 4 and 7, the movable block 13 is located at one side of the formed back plate 3 in the length direction, the length direction of the back plate 3 is parallel to the length direction of the fixed mold 1, the driving block 131 is slidably connected to the first groove 12 in the length direction parallel to the fixed mold 1, and the driving member one 16 drives the driving block 131 to slide on the first groove 12. The driving block 131 is close to the top surface of the chair back plate lining plate 3 and is provided with a sliding groove 1311, the bottom wall of the sliding groove 1311 is provided with an inclined surface 1312, the inclined surface 1312 gradually descends from one end of the chair back plate lining plate 3 to the height position close to one end of the chair back plate lining plate 3 after forming, the driven block 132 is slidably connected to the sliding groove 1311 along the inclined direction parallel to the inclined surface 1312, and the groove 1321 is formed in the top surface of the driven block 132.

Referring to fig. 2 and 3, the first driving member 16 is a penetrating rod 161, and the penetrating rod 161 is fixed on the movable die 2. Referring to fig. 2 and 5, the driving block 131 is provided with an inclined groove 1313, and the distance from one end of the inclined groove 1313 close to the chair back plate lining plate 3 to one end far away from the chair back plate lining plate 3 to the movable mold 2 gradually increases, and the penetrating rod 161 penetrates and is slidably connected in the inclined groove 1313 along a length direction parallel to the inclined groove 1313.

Referring to fig. 4 and 6, during the molding process of the seat back board lining board 3, the passive block 132 and the active block 131 are both moved to abut against the inner wall of the side of the first groove 12, which is close to the seat back board lining board 3, and one side edge of the molded seat back board lining board 3 is embedded into the groove 1321. The operator cannot directly drive the passive block 132 to move towards the side far away from the back plate lining plate 3, and must first drive the passive block 132 to move downwards until the groove 1321 on the passive block 132 is located below the back plate lining plate 3, and then drive the passive block 132 to move towards the side far away from the back plate lining plate 3, so that the passive block 132 can be separated from the back plate lining plate 3.

Referring to fig. 4 and 8, a limiting groove 1314 is formed on the top surface of the inclined surface 1312, the length direction of the limiting groove 1314 is parallel to the inclined direction of the inclined surface 1312, a driven rod 1322 is fixed on the driven block 132, the driven rod 1322 is slidably connected in the limiting groove 1314 along the sliding direction parallel to the driven block 132, and when the driven rod 1322 slides in the limiting groove 1314, the second driving member 133 drives the driven block 132 to always abut against the inner wall of one end of the first groove 12 close to the chair back board 3. Referring to fig. 8 and 9, when the passive rod 1322 moves to abut against the end wall of the limit groove 1314 near the end wall of the seat back lining plate 3, the passive block 132 moves below the seat back lining plate 3 and can move together with the active block 131.

When the back plate liner 3 needs to be removed after the back plate liner 3 is formed, at this time, the movable mold 2 moves upwards to drive the penetrating rod 161 to drive the driving block 131 to move towards the side far away from the back plate liner 3, in this process, the driven block 132 is always abutted against the first groove 12 under the action of the driving part two 133, and a certain height difference is generated between the driven block 132 and the driving block 131 under the action of the inclined surface 1312, at this time, the driven block 132 always abuts against the inclined surface 1312 of the driving block 131 under the action of self gravity and the action of the driving part two 133, and the driven block 132 can also be regarded as moving towards the side far away from the movable mold 2, and because the edge of the back plate liner 3 is in a turnover shape, the driven block 132 is enabled to directly follow the driving block 131 to move away, so that the driven block 132 is clamped on the back plate liner 3, and the driven block 132 is required to move downwards to be separated from the back plate liner 3, and then can be moved away along with the driving block 131.

Referring to fig. 7, the second driving member 133 includes a second spring 1331, a side surface of the driven block 132 facing the driving block 131 is provided with a receiving groove for receiving the second spring 1331, two ends of the second spring 1331 are respectively abutted against a bottom wall of the receiving groove and the driving block 131, and the second spring 1331 is always in a compressed state.

Referring to fig. 4 and 6, a top block 14 is slidably connected to the fixed mold 1 along a vertical direction, a third driving member 15 is arranged on the fixed mold 1, the third driving member 15 drives the top block 14 to slide on the fixed mold 1, a separation block 17 is slidably connected to the top block 14 along the vertical direction, and an auxiliary separation device 4 is further arranged on the fixed mold 1. When the chair back lining plate 3 is in the forming process, the driving piece III 15 drives the top block 14 and the separating block 17 to be located below the movable block 13, and when the movable block 13 moves to be far away from the chair back lining plate 3, the driving piece III 15 drives the top block 14 to move upwards to the separating block 17 to be abutted on the chair back lining plate 3, and the auxiliary separating device 4 is used for driving the separating block 17 to slide on the top block 14 and enabling the chair back lining plate 3 to be separated from the fixed die 1.

Referring to fig. 6 and 9, the third driving member 15 includes two first racks 151, two second racks 153 and two first gears 152, the two first racks 151 are all fixed on the driving block 131, the two first racks 151 are respectively located at two sides of the top block 14, the first gears 152 are rotatably connected to the fixed mold 1, the two first gears 152 respectively correspond to two sides of the top block 14, and an axial direction of the first gears 152 is horizontally arranged and perpendicular to a moving direction of the driving block 131. The two second racks 153 are vertically arranged and fixed on the top block 14, the two second racks 153 correspond to the two first gears 152 respectively, the two first racks 151 correspond to the two first gears 152 respectively, and the first racks 151 and the second racks 153 are both connected to the corresponding first gears 152 in a meshed manner.

Referring to fig. 6 and 9, the driving block 131 drives the two first racks 151 to move while moving, the first racks 151 drive the two first gears 152 to rotate, the first gears 152 rotate and then drive the two second racks 153 to slide, and finally the second racks 153 drive the top block 14 to slide along the vertical direction.

Referring to fig. 6 and 9, the auxiliary separating device 4 includes a fourth driving member 41, a rotating rod 42 and a tapered threaded rod 43, the rotating rod 42 is installed on the tapered threaded rod 43 in a penetrating manner, an acute angle is formed between an axis of the rotating rod 42 and an axis of the tapered threaded rod 43, an axis direction of the rotating rod 42 is parallel to a sliding direction of the driving block 131, the rotating rod 42 is rotationally connected to the fixed mold 1 along the axis direction, meanwhile, the rotating rod 42 is also slidingly connected to the fixed mold 1 along the sliding direction parallel to the driving block 131, and the fourth driving member 41 drives the rotating rod 42 to rotationally slide on the fixed mold 1.

Referring to fig. 6 and 9, when the separation block 17 is located below the back plate lining plate 3 and is not in contact with the back plate lining plate 3, the tapered threaded rod 43 is located on the side of the separation block 17 away from the back plate lining plate 3, and at this time, the outer diameter of the tapered threaded rod 43 becomes gradually larger from the end close to the back plate lining plate 3 to the end away from the back plate lining plate 3. When the separation block 17 moves to abut against the seatback plate 3, the end of the tapered threaded rod 43 having the smallest outer diameter abuts against the bottom end of the separation block 17.

Referring to fig. 8 and 9, when the separation block 17 abuts against the seat back plate 3, the fourth driving member 41 drives the rotation rod 42 to move while rotating, and the end with the smallest outer diameter of the tapered threaded rod 43 abuts against the bottom end of the separation block 17, since the outer diameter of the tapered threaded rod 43 gradually increases or decreases from one end to the other end, and the axis of the rotation rod 42 is disposed at an angle with the axis direction of the tapered threaded rod 43. Referring to fig. 4 and 9, when the rotating rod 42 moves, the conical threaded rod 43 can drive the separating block 17 to indirectly apply force on the back plate lining plate 3, and meanwhile, the force applied by the conical threaded rod is gradually increased, so that the back plate lining plate 3 can be better separated from the fixed mold 1, and damage to the back plate lining plate 3 caused by one-time forced separation is avoided.

Referring to fig. 10, the separation block 17 includes a first block 171 and a second block 172, the first block 171 and the second block 172 are both slidably connected to the top block 14 along a vertical direction, a limiting block 1721 is fixed to an outer wall of the second block 172, a limiting groove 141 is formed in the top block 14 along a vertical direction, and the limiting block 1721 is slidably connected to the limiting groove 141 along a vertical direction. The bottom end of the first block 171 is provided with a matching groove 1711 matched with the top end of the second block 172, the top end of the second block 172 is slidably connected in the matching groove 1711 along the vertical direction, a first spring 1712 is arranged in the matching groove 1711, and two ends of the first spring 1712 are respectively fixed on the bottom wall of the matching groove 1711 and the top wall of the second block 172. The top end of the second block 172 is used for abutting against the back plate lining plate 3, the top end of the second block 172 is made of rubber materials and has a certain feasibility, and the top surface of the second block 172 is provided with a caulking groove 1722 matched with the turnover edge of the part of the back plate lining plate 3 located in the first groove 12. Referring to fig. 2 and 10, when the second block 172 moves to abut against the seat back plate 3, a portion of the edge of the seat back plate 3 is inserted into the insertion groove 1722, and the penetrating rod 161 moves to be separated from the active block 131, so that the top block 14 does not move upward any further. Referring to fig. 2 and 4, after the movable block 13 loses the fit of the penetrating rod 161, the movable block 13 needs to be pushed by a large external force to slide in the first groove 12, so that the movable block 13 will not move any more in general.

Referring to fig. 3 and 6, the fourth driving member 41 includes a third rack 411, a first lever 412, a second lever 413, a second gear 414, and a driving belt 415, the first lever 412 and the second lever 413 are rotatably coupled to the stationary mold 1, an axial direction of the first lever 412 is parallel to an axial direction of the second lever 413 and is parallel to an axial direction of the rotating lever 42, the first lever 412 is located between the two second racks 153, the second lever 413 is located at one side of the movable block 13, and the first lever 412 and the second lever 413 are located at the same level.

Referring to fig. 3 and 6, the second gear 414 is coaxially and fixedly connected to the second rod 413, the third rack 411 is fixed to the movable mold 2 in a vertical direction, when the movable mold 2 is moving, the second gear 414 is always engaged with the third rack 411, the driving belt 415 is wound around the first rod 412 and the second rod 413, and the rotating rod 42 is sleeved and slidably connected to the first rod 412 in a length direction of the first rod 412. The fixed die 1 is connected with a pushing block 416 in a sliding manner along the axis direction parallel to the second rod 413, one end of the pushing block 416 is sleeved on the second rod 413 in a threaded manner, and the other end of the pushing block 416 is sleeved on the first rod 412 and is coaxially and rotatably connected to the rotating rod 42.

Referring to fig. 3 and 6, the first rod 412 and the second rod 413 can be driven to rotate simultaneously by the movement of the movable module 2, the first rod 412 is mainly used for driving the rotating rod 42 to rotate, and the second rod 413 drives the rotating rod 42 to move by driving the pushing block 416, so that the rotating rod 42 can move while rotating.

The implementation principle of the chair back plate lining plate die provided by the embodiment of the application is as follows: through setting up movable block 13 and driving piece one 16, when movable mould 2 cover half 1 compound die comes shaping chair backplate welt 3, recess 1321 on the movable block 13 acts as the component part of cover half 1 die cavity, makes back of the chair board welt 3 shaping smoothly, and when the back of the chair board welt 3 after the shaping is taken off to needs, drive movable block 13 keeps away from chair backplate welt 3, then the application of force makes back of the chair board welt 3 break away from cover half 1 on back of the chair board welt 3, makes things convenient for the operating personnel to take off back of the chair board welt 3 after the shaping on the chair backplate welt mould. Meanwhile, the auxiliary separating device 4 is arranged, so that the chair back lining plate 3 can be separated from the fixed die 1.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a back of chair board lining board mould, includes movable mould (2) and cover half (1), mould cavity (11) have been seted up on cover half (1) and the movable mould (2), when movable mould (2) combination on cover half (1), two mould cavities (11) form the shaping die cavity of back of the chair board lining board (3) jointly, its characterized in that: the novel chair back plate forming device is characterized by further comprising a first driving piece (16), wherein a first groove (12) communicated with a mold cavity (11) of the fixed mold (1) is formed in the fixed mold (1), a movable block (13) is movably connected in the first groove (12), the first driving piece (16) drives the movable block (13) to move in the first groove (12), a groove (1321) matched with the folding edge of a part of the chair back plate lining plate (3) located in the first groove (12) is formed in the side face of the movable block (13) facing the side face of the movable mold (2), and when the movable block (13) moves to be far away from the chair back plate lining plate (3), a gap (121) exists between the movable block (13) and the formed chair back plate lining plate (3);

the movable block (13) comprises a driving piece II (133), a driving block (131) and a driven block (132), the driving block (131) is connected in the first groove (12) in a sliding mode along the moving direction perpendicular to the movable die (2), the driving piece I (16) drives the driving block (131) to slide on the first groove (12), a sliding groove (1311) is formed in the side face, facing the movable die (2), of the driving block (131), an inclined face (1312) is formed in the bottom wall of the sliding groove (1311), the distance from one end, far away from the chair back plate lining plate (3), of the inclined face (1312) to one end, close to the chair back plate lining plate (3), of the movable die (2) is gradually reduced, the driven block (132) is connected on the sliding groove (1311) in a sliding mode along the inclined direction parallel to the inclined face (1312), and the groove (1321) is formed in the side face, facing the movable die (2), of the driven block (132).

When the chair back plate lining plate (3) is in the forming process, the passive block (132) is abutted on the inner wall of one side of the first groove (12) close to the chair back plate lining plate (3);

the driving piece II (133) drives the driven block (132) to always abut against the inner wall of one side of the first groove (12) close to the chair back plate lining plate (3), and when the driven rod (1322) moves to abut against the end wall of one end of the limit groove (1314) close to the chair back plate lining plate (3), the driven block (132) moves to the lower part of the chair back plate lining plate (3) and can move along with the driving block (131);

the device comprises a fixed mold (1), and is characterized by further comprising a driving piece III (15) and an auxiliary separating device (4), wherein the fixed mold (1) is connected with a top block (14) in a sliding direction perpendicular to a driving block (131) in a sliding manner, the driving piece III (15) drives the top block (14) to slide on the fixed mold (1), the top block (14) is connected with a separating block (17) in a sliding manner parallel to the sliding direction of the top block (14) in a sliding manner, when the seat back lining plate (3) is in a forming process, the driving piece III (15) drives the top block (14) and the separating block (17) to be positioned below a movable block (13), and when the movable block (13) moves far away from a seat back lining plate (3), the driving piece III (15) drives the top block (14) to move upwards to the separating block (17) to be abutted on the seat back lining plate (3), and the auxiliary separating device (4) is used for driving the separating block (17) to slide on the top block (14) and separate the seat back lining plate (3) from the fixed mold (1);

the auxiliary separating device (4) comprises a driving piece IV (41), a rotating rod (42) and a conical threaded rod (43), wherein the rotating rod (42) penetrates through and is fixed on the conical threaded rod (43), an acute angle is formed between the axis of the rotating rod (42) and the axis of the conical threaded rod (43), the rotating rod (42) is rotationally connected to the fixed die (1) along the axis direction and is also slidingly connected to the fixed die (1) along the sliding direction perpendicular to the separating block (17), the driving piece IV (41) drives the rotating rod (42) to slide on the fixed die (1) while rotating, and when the separating block (17) moves to be abutted to the chair back plate lining plate (3), one end with the smallest outer diameter of the conical threaded rod (43) is abutted to the bottom end of the separating block (17);

the four (41) of the driving piece comprises a third rack (411), a first rod (412), a second rod (413), a second gear (414) and a transmission belt (415), wherein the first rod (412) and the second rod (413) are respectively connected to the fixed die (1) in a rotating mode, the axial direction of the first rod (412) is parallel to the axial direction of the second rod (413) and is parallel to the axial direction of the rotating rod (42), the second gear (414) is fixedly connected to the second rod (413) in a coaxial mode, the third rack (411) is fixed to the movable die (2), the second gear (414) is connected to the third rack (411) in a meshing mode, the transmission belt (415) is wound on the first rod (412) and the second rod (413) in a winding mode, the rotating rod (42) is sleeved with the pushing block (416) in a sliding mode along the length direction of the first rod (412), and the pushing block (416) is connected to the fixed die (416) in a sliding mode along the axial direction of the first rod (412) in a sliding mode.

2. A seat back panel mold according to claim 1, wherein: the first driving piece (16) is a penetrating rod (161), the penetrating rod (161) is fixed on the movable mould (2) and provided with an inclined groove (1313) on the driving block (131), the inclined groove (1313) is positioned on the outer side of the seat back plate lining plate (3) after forming, the distance from one end, close to the seat back plate lining plate (3), of the inclined groove (1313) to one end, far away from the seat back plate lining plate (3), of the penetrating rod (161) to the movable mould (2) is gradually increased, and the penetrating rod (161) is penetrated and connected in the inclined groove (1313) in a sliding manner along the length direction parallel to the inclined groove (1313).

3. A seat back panel mold according to claim 1, wherein: the driving piece III (15) comprises a first rack (151), a second rack (153) and a first gear (152), wherein the first rack (151) is fixed on the driving block (131), the length direction of the first rack (151) is parallel to the length direction of the driving block (131), the second rack (153) is fixedly connected to the top block (14), the length direction of the second rack (153) is parallel to the length direction of the top block (14), the first gear (152) is rotationally connected to the fixed die (1), and the first rack (151) and the second rack (153) are all in meshed connection with the first gear (152).

4. A seat back panel mold according to claim 1, wherein: the separation block (17) comprises a first block (171) and a second block (172), the second block (172) is always connected to the top block (14) in a sliding mode along a sliding direction parallel to the top block (14), the first block (171) is connected to the second block (172) in a sliding mode along a sliding direction parallel to the second block (172), the second block (172) is used for being abutted to the back plate lining plate (3), the second block (172) has feasibility, and a first spring (1712) is arranged between the first block (171) and the second block (172).