Locking device of rubber plastic extruder and extruder

Abstract

The utility model provides a rubber plastic extruder locking device and an extruder. The rubber plastic extruder locking device comprises: a frame assembly; an upper die; the upper die and the lower die are both movably arranged on the rack assembly, and locking protruding blocks are arranged on the two sides of the upper die and the two sides of the lower die correspondingly; the number of the locking frame plates is at least two, the two sides of the upper die and the two sides of the lower die are each provided with at least one locking frame plate, and the locking frame plates are provided with locking holes corresponding to the locking protruding blocks. The first driving assembly is arranged on the rack assembly, and at least one part of the first driving assembly can drive the locking frame plate to move between an unlocking position and a first locking position relative to at least the other part of the first driving assembly; and the second driving assembly is arranged on the rack assembly. The extruder locking mechanism solves the problem that an extruder locking mechanism in the prior art is poor in use performance.

Description

Technical Field

[0001] The utility model relates to the field of rubber and plastic extrusion equipment, in particular to a locking device for a rubber and plastic extruder and an extruder. Background Art

[0002] At present, the extruder head locking of rubber parts such as rubber sheets, tire treads, sidewalls, and apex rubbers is mostly a C-type lock door structure. The disadvantage is that the force-applying parts of the C-type door lock are the upper and lower hooks on the side. When the upper and lower molds are applied with force, the upper and lower hooks of the C-type door are subjected to shear stress, and the door body is subjected to bending stress. In order to increase the stress intensity, the volume of the C-type door needs to be enlarged, so the cost is relatively high. At the same time, it also has the disadvantages of occupying a large space and making operation and maintenance inconvenient.

[0003] Therefore, there is a problem in the prior art that the extruder locking mechanism has poor performance. Utility Model Content

[0004] The main purpose of the utility model is to provide a locking device for a rubber plastic extruder and an extruder, so as to solve the problem of poor performance of the locking mechanism of the extruder in the prior art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a locking device for a rubber plastic extruder is provided, comprising: a frame assembly; an upper die; a lower die, the upper die and the lower die are both movably arranged on the frame assembly, and locking protrusions are respectively arranged on both sides of the upper die and the lower die; a locking frame plate, at least two locking frame plates are provided, at least one locking frame plate is respectively provided on both sides of the upper die and the lower die, and the locking frame plate is provided with locking holes corresponding to the locking protrusions; a first driving assembly, the first driving assembly is arranged on the frame assembly, and at least a part of the first driving assembly can drive the locking frame plate to move between an unlocking position and a first locking position relative to at least another part of the first driving assembly, when the locking frame plate is in the first locking position, at least a part of the locking protrusion is located in the locking hole; a second driving assembly, the second driving assembly is arranged on the frame assembly, when the locking frame plate moves to the first locking position, the second driving assembly can drive the locking frame plate to move between the first locking position and the second locking position, when the locking frame plate is in the second locking position, the inner wall surface of the locking hole abuts against the locking protrusion.

[0006] Further, a movement route of the locking frame plate between the unlocking position and the first locking position is perpendicular to a movement route of the locking frame plate between the first locking position and the second locking position.

[0007] Furthermore, the locking frame plate is provided with different locking holes corresponding to different locking protrusions.

[0008] Furthermore, the locking protrusion on the upper mold and the locking protrusion on the lower mold on the same side have a first abutment slope on the side away from each other, and the locking hole is provided with a second abutment slope corresponding to the first abutment slope. When the locking frame plate is in the second locking position, the first abutment slope abuts against the second abutment slope.

[0009] Furthermore, the first abutting slope and the second abutting slope abutting against each other are parallel to each other; and / or the height of the first abutting slope and / or the second abutting slope close to the second driving component is higher than the height of the first abutting slope and / or the second abutting slope away from the second driving component.

[0010] Furthermore, the second driving assembly includes at least one mold locking cylinder, the mold locking cylinder has an abutting end plate, and the mold locking cylinder drives the locking frame plate to move between the first locking position and the second locking position through the abutting end plate.

[0011] Furthermore, the locking frame plate is provided with at least one positioning hole corresponding to the mold locking cylinder, and the circumferential inner side wall of the positioning hole is provided with at least one clamping protrusion corresponding to the abutting end plate.

[0012] Furthermore, the first driving component includes: a first guide rail; a frame plate moving cylinder; a first mounting part, the first mounting part is movably arranged on the first guide rail, the frame plate moving cylinder is drivingly connected to the first mounting part to drive the first mounting part to move along the first guide rail, and the first mounting part has a second guide rail; a second mounting part, the locking frame plate is arranged on the second mounting part, and the second mounting part is movably arranged on the second guide rail; when the locking frame plate moves between the unlocking position and the first locking position, the first mounting part drives the second mounting part to move along the first guide rail; when the locking frame plate moves between the first locking position and the second locking position, the second mounting part moves along the second guide rail.

[0013] Furthermore, the frame assembly includes: a frame body, a first drive assembly is arranged on the frame body; a head mainboard seat, the head mainboard seat is arranged on the frame body, the second drive assembly is arranged on the head mainboard seat, and the upper mold and the lower mold are respectively movably connected to the head mainboard seat.

[0014] According to another aspect of the utility model, an extruder is provided, comprising the above-mentioned rubber and plastic extruder locking device.

[0015] Applying the technical solution of the utility model, the locking device of the rubber plastic extruder in the present application includes a frame assembly, an upper die, a lower die, a locking frame plate, a first driving assembly and a second driving assembly. The upper die and the lower die are both movably arranged on the frame assembly, and locking protrusions are respectively arranged on both sides of the upper die and the lower die; there are at least two locking frame plates, at least one locking frame plate is respectively arranged on both sides of the upper die and the lower die, and the locking frame plate is provided with locking holes corresponding to the locking protrusions; the first driving assembly is arranged on the frame assembly, and at least a part of the first driving assembly can drive the locking frame plate to move between the unlocking position and the first locking position relative to at least another part of the first driving assembly, when the locking frame plate is in the first locking position, at least a part of the locking protrusion is located in the locking hole; the second driving assembly is arranged on the frame assembly, when the locking frame plate moves to the first locking position, the second driving assembly can drive the locking frame plate to move between the first locking position and the second locking position, when the locking frame plate is in the second locking position, the inner wall surface of the locking hole abuts against the locking protrusion.

[0016] When the rubber and plastic extruder locking device in the present application is used, when it is necessary to lock the upper and lower molds of the extruder to achieve the locking of the extruder head, the two locking frame plates can be driven from the unlocking position to the first locking position by the first driving component, and after the locking frame plates move to the first locking position under the drive of the first driving component, the locking frame plates can continue to be driven by the second driving component, so that the locking frame plates can move from the first locking position to the second locking position, thereby achieving the locking of the upper and lower molds. Since the rubber and plastic extruder locking device in the present application uses a locking frame plate to replace the C-type door lock in the prior art, the rubber and plastic extruder locking device in the present application occupies less space than the prior art. Therefore, the rubber and plastic extruder locking device in the present application effectively solves the problem of poor performance of the extruder locking mechanism in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 A schematic structural diagram of a locking device for a rubber plastic extruder in a specific embodiment of the present application is shown;

[0019] Figure 2 A schematic diagram of the structure of an extruder in a specific embodiment of the present application is shown;

[0020] Figure 3 Shows Figure 1 A schematic diagram of the structure of a locking frame plate of a locking device for a rubber plastic extruder;

[0021] Figure 4 Shows Figure 1 A schematic diagram of the structure of the head mainboard of the locking device of the rubber plastic extruder;

[0022] Figure 5 A schematic diagram showing the positional relationship among a locking protrusion, a locking frame plate, a mold locking cylinder and an abutting end plate of a locking device for a rubber plastic extruder in another specific embodiment of the present application is shown.

[0023] The above drawings include the following reference numerals:

[0024] 10. Frame assembly; 11. Frame body; 12. Machine head mainboard seat; 20. Upper mold; 30. Lower mold; 40. Locking protrusion; 41. First abutting slope; 50. Locking frame plate; 51. Locking hole; 511. Second abutting slope; 52. Positioning hole; 521. Clamping protrusion; 60. First driving assembly; 61. First guide rail; 62. Frame plate moving cylinder; 63. First mounting part; 64. Second guide rail; 65. Second mounting part; 70. Second driving assembly; 71. Locking cylinder; 711. Abutting end plate. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0027] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0028] In order to solve the problem of poor performance of the extruder locking mechanism in the prior art, the present application provides a rubber and plastic extruder locking device and an extruder.

[0029] And, if Figure 2 As shown, the extruder in the present application has the following rubber plastic extruder locking device. The device is suitable for locking a single extruder two-layer mold and is also suitable for locking multiple extruder multi-layer molds, such as two-composite extruder heads, three-composite extruder heads, four-composite extruder heads, five-composite extruder heads and other multiple extruder composite extruder heads.

[0030] like Figures 1 to 5 As shown, the locking device of the rubber plastic extruder in the present application includes a frame assembly 10, an upper die 20, a lower die 30, a locking frame plate 50, a first driving assembly 60 and a second driving assembly 70. The upper die 20 and the lower die 30 are both movably arranged on the frame assembly 10, and locking protrusions 40 are respectively arranged on both sides of the upper die 20 and the lower die 30; there are at least two locking frame plates 50, and at least one locking frame plate 50 is respectively arranged on both sides of the upper die 20 and the lower die 30, and the locking frame plate 50 is provided with locking holes 51 corresponding to the locking protrusions 40; the first driving assembly 60 is arranged on the frame assembly 10, and at least a part of the first driving assembly 60 can drive the locking frame plate 50 relative to the first driving assembly 60. At least another part moves between the unlocking position and the first locking position. When the locking frame plate 50 is in the first locking position, at least a part of the locking protrusion 40 is located in the locking hole 51. The second driving assembly 70 is arranged on the frame assembly 10. When the locking frame plate 50 moves to the first locking position, the second driving assembly 70 can drive the locking frame plate 50 to move between the first locking position and the second locking position. When the locking frame plate 50 is in the second locking position, the inner wall surface of the locking hole 51 abuts against the locking protrusion 40.

[0031] When the locking device for rubber and plastic extruder in the present application is used, when it is necessary to lock the upper die 20 and the lower die 30 of the extruder, so as to achieve the locking of the extruder head, the two locking frame plates 50 can be driven from the unlocking position to the first locking position by the first driving assembly 60, and after the locking frame plates 50 move to the first locking position under the drive of the first driving assembly 60, the locking frame plates 50 can continue to be driven by the second driving assembly 70, so that the locking frame plates 50 can move from the first locking position to the second locking position, so as to achieve the locking of the upper die 20 and the lower die 30. Since the locking device for rubber and plastic extruder in the present application uses the locking frame plates 50 to replace the C-type door lock in the prior art, the locking device for rubber and plastic extruder in the present application occupies less space than the prior art. Therefore, the locking device for rubber and plastic extruder in the present application effectively solves the problem of poor performance of the locking mechanism of the extruder in the prior art.

[0032] It should be noted that the upper die 20 and the lower die 30 in the locking device for the rubber plastic extruder in the present application can be the upper die 20 and the lower die 30 arranged on the head of the extruder. And the frame assembly 10 can also be the body of the extruder.

[0033] Optionally, the locking frame plate 50 is made of metal material.

[0034] Optionally, the route of the locking frame plate 50 moving between the unlocked position and the first locked position is perpendicular to the route of the locking frame plate 50 moving between the first locked position and the second locked position. In addition, in the present application, the route of the locking frame plate 50 moving between the unlocked position and the first locked position, the route of the locking frame plate 50 moving between the first locked position and the second locked position, and the connecting line of the upper mold 20 and the lower mold 30 are perpendicular to each other. Of course, in the present application, the route of the locking frame plate 50 moving between the unlocked position and the first locked position and the route of the locking frame plate 50 moving between the first locked position and the second locked position can also be adjusted according to actual design requirements, and the relationship between the route of the locking frame plate 50 moving between the unlocked position and the first locked position and the route of the locking frame plate 50 moving between the first locked position and the second locked position can be adjusted.

[0035] Furthermore, in the present application, the thickness direction of the locking frame plate 50 and the movement route of the locking frame plate 50 between the unlocking position and the first locking position are parallel to each other.

[0036] Preferably, the locking protrusions 40 on the upper mold 20 and the locking protrusions 40 on the lower mold 30 on the same side are symmetrically arranged. Moreover, in the present application, the upper mold 20 and the lower mold 30 are also symmetrically arranged.

[0037] Optionally, the locking frame plate 50 is provided with different locking holes 51 corresponding to different locking protrusions 40. In a specific embodiment of the present application, a locking protrusion 40 is provided on both sides of the upper mold 20 and both sides of the lower mold 30, respectively, and there are two locking frame plates 50, the upper mold 20 and the lower mold 30 are located between the two locking frame plates 50, and each locking frame plate 50 is provided with two locking holes 51.

[0038] Preferably, the locking protrusion 40 on the upper die 20 and the locking protrusion 40 on the lower die 30 on the same side have a first abutting inclined surface 41 on the side away from each other, and the locking hole 51 is provided with a second abutting inclined surface 511 corresponding to the first abutting inclined surface 41, and when the locking frame plate 50 is in the second locking position, the first abutting inclined surface 41 abuts against the second abutting inclined surface 511. That is to say, in the present application, the cross section of the locking hole 51 is larger than the cross section of the locking protrusion 40, and the purpose of such a setting is to ensure that when the locking frame plate 50 moves from the unlocking position to the first locking position along with the first driving assembly 60, the locking frame plate 50 can be more easily sleeved on the locking protrusion 40 through the locking hole 51.

[0039] Optionally, the mutually abutting first abutting bevel 41 and the second abutting bevel 511 are parallel to each other. This arrangement can effectively ensure the abutting effect of the first abutting bevel 41 and the second abutting bevel 511, thereby ensuring the locking effect of the upper mold 20 and the lower mold 30 when the locking frame plate 50 is in the second locking position.

[0040] Optionally, the height of the first abutment slope 41 at one end close to the second drive assembly 70 is higher than the height of the first abutment slope 41 at one end away from the second drive assembly 70, and the height of the second abutment slope 511 at one end close to the second drive assembly 70 is higher than the height of the second abutment slope 511 at one end away from the second drive assembly 70.

[0041] In a specific embodiment of the present application, the second driving assembly 70 includes at least one mold locking cylinder 71, and the mold locking cylinder 71 has an abutting end plate 711. The mold locking cylinder 71 drives the locking frame plate 50 to move between the first locking position and the second locking position through the abutting end plate 711. Specifically, the locking frame plate 50 is provided with at least one positioning hole 52 corresponding to the mold locking cylinder 71, and the circumferential inner side wall of the positioning hole 52 is provided with at least one clamping protrusion 521 corresponding to the abutting end plate 711. In a specific embodiment of the present application, the length direction of the abutting end plate 711 is parallel to the route of the locking frame plate 50 when it moves between the unlocking position and the first locking position, and the length of the abutting end plate 711 is greater than the distance between the first position and the first locking position, so as to ensure that when the locking frame plate 50 moves between the unlocking position and the first locking position, the abutting end plate 711 is always engaged with the locking frame plate 50 through the engaging protrusion 521, and then after the locking frame plate 50 moves from the unlocking position to the first locking position, the abutting end plate 711 can drive the locking frame plate 50 to move between the first locking position and the second locking position under the drive of the clamping cylinder 71. And, by such a setting, the expansion and contraction of the abutting end plate 711 can be driven by the expansion and contraction of the clamping cylinder 71, so as to realize the movement of the locking frame plate 50 between the first locking position and the second locking position. In other words, in the present application, the locking frame plate 50 will never be separated from the abutting end plate 711.

[0042] It is not difficult to find from the above records that in the present application, through the mutual cooperation of the first drive assembly 60, the second drive assembly 70 and the locking frame plate 50, when the locking frame plate 50 locks the locking protrusions 40 on the upper mold 20 and the lower mold 30, the stress borne by the locking frame plate 50 is tensile and compressive stress. Therefore, compared with the shear stress and bending stress borne by the C-type door lock in the prior art, the force borne by the locking frame plate 50 in the present application is more reasonable.

[0043] Specifically, the first driving assembly 60 includes a first guide rail 61, a frame plate moving cylinder 62, a first mounting portion 63 and a second mounting portion 65. The first mounting portion 63 is movably arranged on the first guide rail 61, the frame plate moving cylinder 62 is drivingly connected to the first mounting portion 63 to drive the first mounting portion 63 to move along the first guide rail 61, and the first mounting portion 63 has a second guide rail 64; the locking frame plate 50 is arranged on the second mounting portion 65, and the second mounting portion 65 is movably arranged on the second guide rail 64; when the locking frame plate 50 moves between the unlocking position and the first locking position, the first mounting portion 63 drives the second mounting portion 65 to move along the first guide rail 61; when the locking frame plate 50 moves between the first locking position and the second locking position, the second mounting portion 65 moves along the second guide rail 64. In other words, by setting the first guide rail 61 and the second guide rail 64, the moving direction of the locking frame plate 50 can be effectively limited, thereby effectively ensuring the performance of the locking device of the rubber plastic extruder.

[0044] Optionally, the frame assembly 10 includes a frame body 11 and a head mainboard seat 12, the first drive assembly 60 is arranged on the frame body 11; the head mainboard seat 12 is arranged on the frame body 11, the second drive assembly 70 is arranged on the head mainboard seat 12, and the upper mold 20 and the lower mold 30 are respectively movably connected to the head mainboard seat 12. In a specific embodiment of the present application, there are two clamping cylinders 71 and locking frame plates 50, and the two ends of the head mainboard seat 12 are respectively provided with assembly holes corresponding to the two clamping cylinders 71.

[0045] And, if Figure 2 and Figure 5 As shown, for the extruder in the present application, a hinge assembly for driving the upper mold 20 and the lower mold 30 to open and close is also provided on the head main board seat 12 of the rubber plastic extruder locking device of the extruder. In addition, the extruder in the present application can be a single-layer flow channel extruder or a multi-layer flow channel composite extruder. In addition, when the extruder is a multi-layer flow channel composite extruder, the second drive assembly 70 can have two clamping cylinders 71, and two positioning holes 52 can be correspondingly provided on the locking frame plate 50, or the number of the clamping cylinders 71, the locking frame plate 50 and the positioning holes 52 can be adaptively adjusted according to the number of flow channels.

[0046] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0047] 1. Effectively solve the problem of poor performance of the extruder locking mechanism in the prior art;

[0048] 2. The locking frame plate 50 is reasonably stressed, which can effectively simplify the volume of the locking mechanism of the extruder, has low manufacturing cost and is easy to operate.

[0049] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0050] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0051] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0052] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A locking device for a rubber and plastic extruder, characterized in that: include: Frame assembly (10); Upper mold(20); A lower mold (30), wherein the upper mold (20) and the lower mold (30) are both movably arranged on the frame assembly (10), and locking protrusions (40) are respectively arranged on both sides of the upper mold (20) and both sides of the lower mold (30); A locking frame plate (50), wherein there are at least two locking frame plates (50), at least one locking frame plate (50) is disposed on both sides of the upper mold (20) and the lower mold (30), and the locking frame plate (50) is provided with a locking hole (51) corresponding to the locking protrusion (40); a first driving assembly (60), wherein the first driving assembly (60) is arranged on the frame assembly (10), and at least a portion of the first driving assembly (60) is capable of driving the locking frame plate (50) to move between an unlocking position and a first locking position relative to at least another portion of the first driving assembly (60), and when the locking frame plate (50) is in the first locking position, at least a portion of the locking protrusion (40) is located in the locking hole (51); A second driving assembly (70), wherein the second driving assembly (70) is arranged on the frame assembly (10); when the locking frame plate (50) moves to the first locking position, the second driving assembly (70) can drive the locking frame plate (50) to move between the first locking position and the second locking position; when the locking frame plate (50) is in the second locking position, the inner wall surface of the locking hole (51) abuts against the locking protrusion (40).

2. The locking device for a rubber and plastic extruder according to claim 1, characterized in that: The route along which the locking frame plate (50) moves between the unlocking position and the first locking position is perpendicular to the route along which the locking frame plate (50) moves between the first locking position and the second locking position.

3. The locking device for a rubber and plastic extruder according to claim 1, characterized in that: The locking frame plate (50) is provided with different locking holes (51) corresponding to different locking protrusions (40).

4. The locking device for a rubber and plastic extruder according to claim 3, characterized in that: The locking protrusion (40) on the upper mold (20) and the locking protrusion (40) on the lower mold (30) on the same side have a first abutment slope (41) on the side away from each other, and the locking hole (51) is provided with a second abutment slope (511) corresponding to the first abutment slope (41). When the locking frame plate (50) is in the second locking position, the first abutment slope (41) abuts against the second abutment slope (511).

5. The locking device for a rubber and plastic extruder according to claim 4, characterized in that: The first abutting inclined surface (41) and the second abutting inclined surface (511) abutting against each other are parallel to each other; and / or The height of one end of the first abutting slope (41) and / or the second abutting slope (511) close to the second driving component (70) is higher than the height of one end of the first abutting slope (41) and / or the second abutting slope (511) away from the second driving component (70).

6. The locking device for a rubber and plastic extruder according to claim 1, characterized in that: The second driving assembly (70) comprises at least one mold locking cylinder (71), wherein the mold locking cylinder (71) has an abutting end plate (711), and the mold locking cylinder (71) drives the locking frame plate (50) to move between the first locking position and the second locking position via the abutting end plate (711).

7. The locking device for a rubber and plastic extruder according to claim 6, characterized in that: The locking frame plate (50) is provided with at least one positioning hole (52) corresponding to the mold locking cylinder (71), and the circumferential inner side wall of the positioning hole (52) is provided with at least one clamping protrusion (521) corresponding to the abutting end plate (711).

8. The locking device for a rubber and plastic extruder according to any one of claims 1 to 7, characterized in that: The first driving assembly (60) comprises: A first guide rail (61); Frame plate moving cylinder (62); a first mounting part (63), the first mounting part (63) being movably arranged on the first guide rail (61), the frame plate moving oil cylinder (62) being drivingly connected to the first mounting part (63) so as to drive the first mounting part (63) to move along the first guide rail (61), and the first mounting part (63) having a second guide rail (64); A second mounting portion (65), the locking frame plate (50) being arranged on the second mounting portion (65), and the second mounting portion (65) being movably arranged on the second guide rail (64); When the locking frame plate (50) moves between the unlocking position and the first locking position, the first mounting portion (63) drives the second mounting portion (65) to move along the first guide rail (61); When the locking frame plate (50) moves between the first locking position and the second locking position, the second mounting portion (65) moves along the second guide rail (64).

9. The locking device for a rubber and plastic extruder according to any one of claims 1 to 7, characterized in that: The frame assembly (10) comprises: A frame body (11), wherein the first driving assembly (60) is arranged on the frame body (11); A machine head mainboard seat (12), wherein the machine head mainboard seat (12) is arranged on the frame body (11), the second driving assembly (70) is arranged on the machine head mainboard seat (12), and the upper mold (20) and the lower mold (30) are respectively movably connected to the machine head mainboard seat (12).

10. An extruder, characterized in that: A rubber and plastic extruder locking device comprising the locking device of any one of claims 1 to 9.

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