Extruder head and extruder

Abstract

The utility model discloses an extruder head and an extruder. The extruder head comprises a head body and a head cover, the head cover is provided with an extrusion port for rubber material extrusion, the head body is provided with left and right C-type locking members on the left and right sides respectively, one end of the left and right C-type locking members is fixed on the head body as a fixed end, the extruder head is provided with a driving assembly, the driving assembly drives the other end of the left and right C-type locking members to tighten so as to lock the head body and the head cover, the driving assembly comprises a left and a right driving device, and the left and the right C-type locking members are driven respectively. The left and the right C-type locking members of the above-mentioned extruder head are driven by the left and the right driving devices respectively, when the head cover and the head body need to be unlocked, the left and the right driving devices respectively drive the left and the right C-type locking members to open, and the left and the right C-type locking members are respectively driven to open, which can ensure that the left and the right C-type locking members are respectively separated from the head cover and the head body, and unlocking is achieved, and no manual operation is required by the maintenance personnel.

Description

Technical Field

[0001] The utility model relates to the technical field of tire production equipment, in particular to an extruder head and an extruder. Background Art

[0002] Special tire winding production lines usually include extruders, presses, coolers, conveyors and winding machines. The extruder includes a feeding seat and an extruder head. The rubber material is fed from the feeding seat into the extruder and then extruded from its head. Then it enters the press to be calendered and formed into a rubber strip. Then it is cooled in the cooler and conveyed to the winding machine by the conveyor. The winding machine uses the cooled rubber strip to wrap the tire blank to complete the tire winding process. The extruder head includes a head body and a head cover with an extrusion port. The head cover is hinged on the head body, and the rubber material is specifically extruded from the extrusion port of the head cover. The head cover of the traditional extruder head is locked on the head body by screws. If the head cover needs to be opened to clean the inner cavity of the head, the maintenance personnel have to manually unscrew each screw one by one to open the head cover, which is very troublesome to operate. To this end, some people in the industry have proposed to use an electric method to automatically lock the head cover and the head body and unlock them, such as the extruder head disclosed in patent document CN104029369B. Fig. 9 As shown, it includes a die head fixed mold 10 (i.e., a die head body, see Fig.10 ) and the die movable mold 8 (i.e., die cover) and a locking device for locking the two, the locking device includes a left and right C-shaped locking door 11 and a locking oil cylinder 12, the bottom ends of the left and right C-shaped locking doors 11 are respectively hinged to the extruder body, and the upper ends of the left and right C-shaped locking doors 11 are respectively hinged to the rear end of the cylinder body and the front end of the piston rod of the horizontally placed locking oil cylinder 12. The outer peripheral walls of the die movable mold 8 and the die fixed mold 10 are raised with an annular locking edge. When the die movable mold 8 and the die fixed mold 10 are closed, the piston rod of the locking oil cylinder 12 retracts, and the upper ends of the left and right C-shaped locking doors 11 rotate around the bottom to tighten; when the left and right C-shaped locking doors 11 are tightened, the locking edges of the die movable mold 8 and the die fixed mold are just embedded in the left and right C-shaped locking doors 11, and the die movable mold 8 and the die fixed mold 10 are locked together. If unlocking is required, the maintenance personnel activates the locking cylinder 12 to extend the piston rod, and the upper ends of the left and right C-shaped lock doors 11 rotate around the bottom ends under the action of the piston rod to open, and the locking edges of the head movable mold 8 and the head fixed mold 10 are separated from the left and right C-shaped lock doors 11, so that the head movable mold 8 and the head fixed mold 10 are no longer locked together, and the head movable mold 8 can be opened. The opening state is as follows: Fig.10Although the above patent document realizes automatic unlocking of the machine head body and the machine head cover without the user manually unscrewing the screws to unlock, it controls the opening and tightening of the left and right C-type lock doors 11 by setting a locking cylinder 12 between the upper ends of the left and right C-type lock doors 11. When it is necessary to unlock the machine head movable mold 8 and the machine head fixed mold 10, the piston rod of the locking cylinder 12 extends toward the right C-type lock door 11 by a preset length. During this process, the right C-type lock door 11 is pushed to the right by the piston rod of the locking cylinder 12, while the left C-type lock door 11 is not The piston rod of the locking cylinder 12 pushes directly, and only relies on the reaction force generated in the process of the piston rod pushing the right C-type locking door 11 to open to the left. However, the left C-type locking door 11 may not open to the left because its static friction is greater than this reaction force, resulting in the locking edge of the head movable mold 8 and the head fixed mold 10 being disengaged from the right C-type locking door but not from the left C-type locking door 11. For this reason, the maintenance personnel need to manually pry open the left C-type locking door 11 separately to disengage the locking edge of the head movable mold 8 and the head fixed mold 10 from the left C-type locking door 11. Summary of the invention

[0003] The utility model aims to provide an extruder head and an extruder provided with the head, wherein the extruder head can realize automatic locking / unlocking of a head cover and a head body and does not require manual assistance from maintenance personnel during unlocking.

[0004] In order to achieve the above-mentioned purpose, the utility model provides an extruder head, including a head body and a head cover, the head cover is provided with an extrusion port for rubber material to be extruded, the head body is provided with left and right C-shaped locking members on the left and right sides respectively, one end of the left and right C-shaped locking members is fixed on the head body as a fixed end, the extruder head is provided with a driving assembly, the driving assembly drives the other ends of the left and right C-shaped locking members to tighten so as to lock the head body and the head cover, the driving assembly includes left and right driving devices, which respectively drive the left and right C-shaped locking members.

[0005] Furthermore, the left and right driving devices drive the left and right C-shaped locking members through the left and right auxiliary connecting rod devices respectively.

[0006] Furthermore, each sub-link device includes a first link and a second link, one end of the first link is hinged on the head body as a fixed end and is located between the non-fixed ends of the left and right C-type locking parts, and the other end is hinged to the driving end of the corresponding driving device as a movable end and is hinged to one end of the second link, and the other end of the second link is hinged to the non-fixed end of the corresponding C-type locking part.

[0007] Furthermore, the upper ends of the left and right C-shaped locking members are used as fixed ends.

[0008] Furthermore, the driving device is specifically a cylinder.

[0009] Furthermore, the outer peripheral walls of the machine head body and the machine head cover are respectively protruded with annular locking edges, and tightening the non-fixed ends of the left and right C-shaped locking members fixes the locking edges of the machine head body and the machine head cover together, thereby locking the machine head body and the machine head cover.

[0010] The utility model also provides an extruder, comprising a feeding seat, a barrel and a head. The inner cavity of the feeding seat is connected to the beginning of the barrel, and the end of the barrel is connected to the head. The head is the head as described above.

[0011] The left and right C-shaped locking members of the extruder head of the utility model are driven by the left and right driving devices respectively. When the head cover and the head body need to be unlocked, the left and right driving devices respectively drive the left and right C-shaped locking members to open. The left and right C-shaped locking members are respectively driven to open, which can ensure that the left and right C-shaped locking members are respectively separated from the head cover and the head body, thereby achieving unlocking without the need for manual operation by maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional schematic diagram of the extruder provided by the utility model.

[0013] Figure 2 The utility model is a three-dimensional schematic diagram of a feeding door closed from the front left side perspective of a feeding seat for an extruder provided by the utility model, wherein the feeding port faces upward.

[0014] Figure 3 It is a three-dimensional schematic diagram of a feeding door of a feeding seat for an extruder provided by the utility model when the feeding door is closed from the front lower perspective, and the feeding port in the figure faces rearward and upward.

[0015] Figure 4 It is a structural schematic diagram of a feeding door opened from the upper left front view of a feeding seat for an extruder provided by the utility model, and the feeding port faces upwards in the figure.

[0016] Figure 5 The utility model is a structural schematic diagram of a feeding door opened from the front lower perspective of a feeding seat for an extruder provided by the utility model, wherein the feeding port faces upward and rearward.

[0017] Figure 6 It is a three-dimensional structural schematic diagram of the extruder head provided by the utility model, in which the right C-shaped locking piece is in an open state, and the left C-shaped locking piece is in a locked state.

[0018] Figure 7 It is a front view of the extruder head provided by the utility model, in which the right C-shaped locking piece is in an open state, and the left C-shaped locking piece is in a locked state.

[0019] Figure 8 It is a three-dimensional structural schematic diagram of the extruder head provided by the utility model with the right C-shaped locking piece hidden.

[0020] Fig. 9 It is a structural schematic diagram of the prior art when the extruder head is in a locked state.

[0021] Fig.10 It is a schematic diagram of the structure of the prior art extruder head in the unlocked state.

[0022] Figure numerals: 1. feeding seat; 10. main body seat; 11. feeding door; 12. hinged part; 13. piston rod; 14. hydraulic cylinder; 2. barrel; 3. machine head; 30. machine head cover; 301. locking edge; 302. extrusion outlet; 303. handle; 31. left C-type locking piece; 32. right C-type locking piece; 33. left cylinder; 34. right cylinder; 35. first left connecting rod; 36. first right connecting rod; 37. second left connecting rod; 38. second right connecting rod; 39. machine head body; 391. locking edge. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with specific implementation methods.

[0024] Extruder Figure 1 As shown, it includes a feeding seat 1, a barrel 2 and a die 3. The inner cavity of the feeding seat 1 is connected to the beginning of the barrel 2, and the end of the barrel 2 is connected to the die 3. The die 3 includes a die body 39 and a die cover 30, and an extrusion port 302 is opened on the front side of the die cover 30. During operation, the rubber material is fed from the feeding funnel 15 of the feeding seat 1, moves to the extruder die 3 through the barrel 2, and then extruded from the extrusion port 302 on the die cover 30, and moved to the production equipment of the next process of the tire winding production line.

[0025] Feeding seat 1 Figure 2 , 3 As shown, it includes a main body seat 10 and a feeding door 11 hinged on the main body seat 10. The feeding seat 1 is provided with a hydraulic cylinder 14, the cylinder body of the hydraulic cylinder 14 is fixed on the main body seat 10, and the piston rod 13 thereof is hinged on the hinge 12 between the feeding door 11 and the main body seat 10. In the initial state, the piston rod 13 of the hydraulic cylinder 14 extends out to a preset length, and the feeding door 11 is folded on the main body seat 10. After the production work of the extruder is completed, the maintenance personnel need to clean up the residual rubber in the feeding seat 1, start the hydraulic cylinder 14, and the hydraulic cylinder 14 acts as a driving device to retract the piston rod 13, thereby pulling the feeding door 11 to rotate and open around the pivot. Specifically: to rotate and open the feeding door 11, the end of the piston rod 13 of the hydraulic cylinder 14 needs to pull the hinge 12 to rotate, so as Figure 3 As shown, the cylinder body of the hydraulic cylinder 14 is designed to be fixed on the main body seat 10 by means of an articulation. In the process of driving the feeding door 11 to rotate and open, the hydraulic cylinder 14 can swing around the hinge point between the cylinder body start end and the main body seat 10, so that the end of the piston rod 13 of the hydraulic cylinder 14 can pull the hinge part 12 to rotate, thereby driving the feeding door 11 to rotate and open around the pivot, as shown in FIG. Figure 4 , 5 As shown, the inner cavity of the feeding seat 1 is exposed, and the maintenance personnel can clean the residual rubber in the inner cavity of the feeding seat 1. If the maintenance personnel need to inspect the components in the feeding seat 1, they can open the feeding door 11 in the same way to expose the inner cavity of the feeding seat 1, and then inspect the components in the feeding seat 1.

[0026] like Figure 6 , 7 As shown, the machine head body 39 is provided with left and right C-shaped locking members 31 and 32 on the left and right sides respectively, and the upper ends of the left and right C-shaped locking members 31 and 32 are fixed on the machine head body 39. Figure 8 As shown, the outer peripheral walls of the machine head body 39 and the machine head cover 30 are respectively protruded with annular locking edges 301 and 391. When the lower ends of the left and right C-shaped locking members 31 and 32 are tightened, the locking edges 301 and 391 of the machine head body 39 and the machine head cover 30 will be embedded in the left and right C-shaped locking members 31 and 32, that is, the left and right C-shaped locking members 31 and 32 fix the locking edges 301 and 391 of the machine head body 39 and the machine head cover 30 together, thereby locking the machine head body 39 and the machine head cover 30. Figure 6 , 7 As shown, the extruder head is provided with left and right cylinders 33 and 34 for driving the left and right C-type locking members 31 and 32 respectively. The cylinder body of the right cylinder 34 is fixed on the head body 39, and the piston rod of the right cylinder 34 is connected to the right C-type locking member 32 through the second right connecting rod 38. Specifically, the piston rod of the right cylinder 34 is hinged to the lower end of the second right connecting rod 38, and the upper end of the second right connecting rod 38 is hinged to the movable end of the right C-type locking member 32; the extruder head is provided with a first right connecting rod 36 to assist in defining the path of the piston rod end of the right cylinder 34. The left end of the first right connecting rod 36 is hinged to the head body 39 as a fixed end, and the right end is hinged to the hinge point between the right cylinder 34 and the second right connecting rod 38 as a movable end. The first right connecting rod 36 and the second right connecting rod 38 constitute a right connecting rod device for the right cylinder 34 to drive the right C-type locking member 32. Similarly, the left cylinder 33 also drives the left C-type locking member 31 through the left connecting rod device composed of the first left connecting rod 35 and the second left connecting rod 37. The connection structure between the first left connecting rod 35, the second left connecting rod 37 and the left cylinder 33 and the left C-type locking member 31 is symmetrical to the connection structure between the first right connecting rod 36, the second right connecting rod 38 and the right cylinder 34 and the right C-type locking member 32. In the initial state, the piston rods of the left cylinder 33 and the right cylinder 34 extend to a preset length respectively, and the lower ends of the left and right C-type locking members 31 and 32 are tightened through the connecting rod device. In practice, the states of the left and C-type locking members 31 and 32 are always kept synchronized; Figure 6 , 7For the convenience of comparison, the left C-type locking member 31 is drawn as a tightened state, and the right C-type locking member 31 is drawn as an open state. In practice, this state will not occur. After the extruder production work is completed, the maintenance personnel need to clean the inner cavity of the die head. They start the left cylinder 33 and the right cylinder 34 through the control buttons of the cylinder 33 and the cylinder 34 to simultaneously drive the left and right C-type locking members 31 and 32 to open. Specifically, Figure 6 As shown, the cylinder bodies of the left cylinder 33 and the right cylinder 34 are fixed to the machine head body 39 by means of a hinge. The right cylinder 34 retracts the piston rod, pulling the first right connecting rod 36 to rotate downward around its fixed end. During this process, the right cylinder 34 rotates around the hinge point between the starting end of its cylinder body and the machine head body 39, so that the piston rod of the right cylinder 34 can pull the movable end of the first right connecting rod 36 to rotate downward; the downward rotation of the first right connecting rod 36 around its fixed end drives the second right connecting rod 38 to move with the movable end of the first right connecting rod 36, thereby pulling the right C-type locking member 32 to rotate and open around its upper end. The open state is shown in FIG. Figure 7 The left C-shaped locking member 31 is opened by a symmetrical action with the right C-shaped locking member 32. The maintenance personnel can hold the handle 303 of the machine head cover 30 to open the machine head cover 30, and then the inner cavity of the machine head 3 can be cleaned.

[0027] The above is only an implementation method of the invention, and does not limit the scope of patent protection. Those skilled in the art can make non-substantial changes or substitutions based on the invention, which still fall within the scope of patent protection.

Claims

1. An extruder head, comprising a head body and a head cover, the head cover is provided with an extrusion port for rubber material to be extruded, the head body is provided with left and right C-shaped locking members on the left and right sides respectively, one end of the left and right C-shaped locking members is fixed on the head body as a fixed end, the extruder head is provided with a driving assembly, the driving assembly drives the other end of the left and right C-shaped locking members to tighten so as to lock the head body and the head cover, wherein: The driving assembly comprises left and right driving devices, which respectively drive left and right C-shaped locking members.

2. The extruder head as claimed in claim 1, characterized in that: The left and right driving devices drive the left and right C-shaped locking parts through the left and right auxiliary connecting rod devices respectively.

3. The extruder head as claimed in claim 2, characterized in that: Each pair of connecting rod devices includes a first connecting rod and a second connecting rod. One end of the first connecting rod is hinged to the head body as a fixed end and is located between the non-fixed ends of the left and right C-shaped locking parts. The other end is hinged to the driving end of the corresponding driving device as a movable end and is hinged to one end of the second connecting rod. The other end of the second connecting rod is hinged to the non-fixed end of the corresponding C-shaped locking part.

4. The extruder head as claimed in claim 1, characterized in that: The upper ends of the left and right C-shaped locking pieces serve as fixed ends.

5. The extruder head according to claim 1, characterized in that: The driving device is specifically a cylinder.

6. The extruder head as claimed in claim 1, characterized in that: The outer peripheral walls of the machine head body and the machine head cover are respectively protruded with annular locking edges. When the non-fixed ends of the left and right C-shaped locking members are tightened, the locking edges of the machine head body and the machine head cover are fixed together, thereby locking the machine head body and the machine head cover.

7. An extruder, comprising a feeder, a barrel and a die, wherein the inner cavity of the feeder is connected to the beginning of the barrel, and the end of the barrel is connected to the die, wherein: The handpiece is a handpiece as claimed in any one of claims 1 to 6.

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