Injection Molding Device for Removable Chip Tray of Pet Drying Box

Abstract

The present invention discloses an injection molding device for a detachable chip collecting tray of a pet drying box in the technical field of production of chip collecting trays for pet drying boxes, which includes a fixed mold and a movable mold. A plurality of core pins are arranged on the fixed mold. The movable mold is opened and closed through a driving assembly. The movable mold includes: a housing, which is arranged directly above the fixed mold and is lifted and lowered through the driving assembly; a forming plate, which is located between the fixed mold and the housing, and the height of the mold cavity is adjusted through a first telescopic member connected to the housing. The core pins penetrate through the forming plate and are slidably connected thereto. In the present invention, when the forming plate moves for height adjustment, the support rods are adjusted to a new stress balance point in real time, so that the pressure distribution of the side plates on the forming plate is uniform. The dynamic balance system composed of the insertion rods and the support rods enables the extrusion stress of the side plates on the forming plate to change with the height, so as to avoid leakage of materials caused by deformation of the side plates when the height of the forming plate changes relative to the side plates.

Description

Technical Field

[0001] The present invention relates to the technical field of the production of the chip collecting tray for a pet drying box, and particularly to an injection molding device for a detachable chip collecting tray of a pet drying box. Background Art

[0002] As a core functional component, the plastic tray of the pet drying box needs to simultaneously meet the dual requirements of pet bearing and drying ventilation. According to the differences in material properties (such as PP, ABS, etc.), its injection molding temperature usually needs to be controlled within the range of 200 - 300 °C.

[0003] With the consumption upgrade and the innovation of the pet - raising concept, the traditional process usually adopts a fixed - thickness design. However, the current market has put forward higher - dimensional requirements for product performance:

[0004] High - end scenarios: When using high - cost materials (such as glass fiber - reinforced PP), lightweight can be achieved by reducing the thickness (2 - 3 mm), and at the same time, the performance requirements can be met by relying on the high strength and aging resistance of the material itself;

[0005] Economical scenarios: When using low - cost materials (such as ordinary PP), the thickness needs to be increased (4 - 5 mm) to compensate for the material performance differences and ensure the bearing capacity;

[0006] The traditional solution relies on the switching production of multiple sets of mold groups to complete the thickness adjustment of the parts, resulting in high equipment investment and low mold - changing efficiency, especially imposing a heavy burden on small and medium - sized factories;

[0007] In the prior art, although the change of the height of the internal support plate of the moving mold can be used to complete the change of the cavity size to achieve the adjustment of the tray thickness, in the actual application process, when the support plate changes, there will be a large friction with the moving mold, resulting in a reduction in sealing performance. Moreover, as the height of the support plate changes inside the moving mold, when the support plate is close to the upper or bottom, the moving mold and the support plate form a cantilever, causing uneven force on the moving mold and deformation, thus resulting in a reduction in sealing performance and the generation of material leakage. Summary of the Invention

[0008] The purpose of the present invention is to provide an injection molding device for a detachable chip collecting tray of a pet drying box to solve the problems raised in the above - mentioned background art.

[0009] To achieve the above - mentioned purpose, the present invention provides the following technical solution: An injection molding device for a detachable chip collecting tray of a pet drying box, including a fixed mold and a moving mold. A plurality of core - pins are arranged on the fixed mold, and the moving mold is opened and closed through a driving component. The moving mold includes:

[0010] A housing, which is arranged directly above the fixed mold and is lifted and lowered through a driving component;

[0011] The forming plate is located between the fixed mold and the housing, and the height of the mold cavity is adjusted by the first telescopic member connected to the housing. The core penetrates through the forming plate and is slidably connected thereto;

[0012] There are multiple side plates, all of which are slidably connected to the housing. When the multiple side plates are butted, they are used to seal the side of the housing;

[0013] The separation assembly controls the simultaneous separation or docking of the side plates and the housing;

[0014] The stress adjustment member is slidably connected to the side plate and is used to adjust the stress when the height of the forming plate is adjusted.

[0015] As a further solution of the present invention, the stress adjustment member includes a support rod slidably connected to the side plate. The support rod is slidably connected with a plug rod, and the plug rod is slidably connected inside the side plate and its bottom is fixedly connected to the forming plate.

[0016] As a further solution of the present invention, the side plates are all provided with integral reinforcing ribs, and the support rods are respectively slidably connected to the reinforcing ribs.

[0017] As a further solution of the present invention, the separation assembly includes rollers respectively rotatably connected to the side walls of the front and rear side plates and springs sleeved on the sliding shafts of the left and right side plates in the left and right directions. Second telescopic members are fixedly connected between the two front and rear side plates and the housing. When the second telescopic member pushes the front and rear side plates to slide along the housing until the rollers are separated from the left and right side plates, the springs will respectively push the left and right side plates to slide to the left and right sides to separate from the housing.

[0018] As a further solution of the present invention, it further includes an adjustment assembly arranged above the core. The adjustment assembly includes:

[0019] Multiple laterally distributed positioning rods are arranged between the housing and the forming plate;

[0020] Multiple positioning members arranged on each positioning rod, and the core is array-connected below the positioning members;

[0021] Among them, when the first telescopic member drives the forming plate to move, the core slides relative to the forming plate and keeps fitting with the inner cavity of the fixed mold.

[0022] As a further solution of the present invention, the positioning members are all slidably connected to the positioning rods.

[0023] As a further solution of the present invention, the positioning rod is slidably connected to the housing, and a third telescopic member is provided between the two;

[0024] The forming plate is provided with multiple array-distributed lifting rods, and each lifting rod is connected to the forming plate through a fourth telescopic member;

[0025] In the middle of each lifting rod, a conical first clamping plate and a second clamping plate are slidably connected, and the two cooperate with the receiving groove on the forming plate;

[0026] The first clamping plate and the second clamping plate are connected with a guiding member, and the guiding member is provided with a guiding groove with a vertical bottom and an inclined top;

[0027] Contact wheels are arranged on both sides of the core, and the contact wheels are rotatably connected with the lifting rod.

[0028] As a further solution of the present invention, both the first clamping plate and the second clamping plate are conical, and the width of the second clamping plate is greater than that of the first clamping plate.

[0029] As a further solution of the present invention, the core is connected with the positioning member through bolts.

[0030] As a further solution of the present invention, the driving assembly includes a hydraulic rod fixedly connected between the fixed mold and the top of the housing.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] In the present invention, when the forming plate moves for height adjustment, the support rod is adjusted to a new stress balance point in real time, so that the pressure distribution of the side plate on the forming plate is uniform. The dynamic balance system composed of the insertion rod and the support rod enables the extrusion stress of the side plate on the forming plate to change with the height, so as to avoid the side plate from deforming and causing material leakage when the relative height of the forming plate and the side plate changes. When the four side plates are closed, the height change of the forming plate is automatically compensated and sealed, and when producing parts of different thicknesses, there is no need to replace the template.

[0033] In the present invention, when the height of the forming plate is adjusted, the first clamping plate and the second clamping plate drive the core to separate from the forming plate while keeping the core clamped, avoiding direct friction between the core and the forming plate. After the height adjustment of the forming plate is completed, the core is inserted into the receiving groove, so as to avoid friction between the core and the forming plate when the distance between the bottom of the core and the inner cavity of the fixed mold remains unchanged. Description of the Drawings

[0034] Figure 1 It is a schematic installation diagram of the chip collecting tray and the drying box body;

[0035] Figure 2 It is a schematic overall structure diagram of the present invention;

[0036] Figure 3 It is a cross-sectional view of the moving mold and the fixed mold of the present invention;

[0037] Figure 4 It is a schematic connection diagram of the housing, the forming plate, the side plate and the support rod of the present invention;

[0038] Figure 5Side view of the housing, side plate and forming plate of the present invention;

[0039] Figure 6 is Figure 5 partial enlarged view of location A in;

[0040] Figure 7 Top view of the forming plate and side plate of the present invention;

[0041] Figure 8 Schematic diagram when the roller of the present invention is not in contact with the side plate;

[0042] Figure 9 Schematic diagram after the roller of the present invention contacts the side plate);

[0043] Figure 10 Schematic diagram of the deformation of the side plate when the height of the forming plate of the present invention changes;

[0044] Figure 11 Schematic diagram when the support plate of the present invention rises and falls synchronously with the forming plate;

[0045] Figure 12 Schematic diagram of the forming plate, core, positioning rod and housing of the present invention;

[0046] Figure 13 Schematic diagram of the positional relationship between the core, the first telescopic member, the positioning rod and the forming plate of the present invention;

[0047] Figure 14 is Figure 12 partial enlarged view of location B in;

[0048] Figure 15 Schematic diagram when the first clamping plate and the second clamping plate of the present invention clamp the core;

[0049] Figure 16 Schematic diagram after the first clamping plate and the second clamping plate of the present invention are separated from the core;

[0050] Figure 17 Schematic diagram of the positional relationship between the lifting plate and the contact wheel of the present invention;

[0051] Figure 18 Schematic diagram when the core of the present invention does not rise relative to the forming plate;

[0052] Figure 19 Schematic diagram after the core of the present invention rises relative to the forming plate);

[0053] Figure 20 Schematic diagram when the core of the present invention does not descend relative to the forming plate;

[0054] Figure 21 Schematic diagram when the core of the present invention descends relative to the positioning rod).

[0055] In the drawings: 1. Fixed mold; 2. Movable mold; 3. Housing; 4. Forming plate; 401. Insert rod; 5. Side plate; 501. First telescopic member; 6. Support rod; 7. Reinforcing rib; 8. Roller; 9. Spring; 10. Second telescopic member; 11. Core; 12. Positioning rod; 13. Positioning member; 14. Lifting rod; 15. Fourth telescopic member; 16. First clamping plate; 17. Second clamping plate; 18. Accommodating groove; 19. Guide member; 20. Guide groove; 21. Contact wheel; 22. Third telescopic member; 23. Hydraulic rod; 24. Injection cavity; 25. Drying box body; 26. Chip collection tray. Detailed implementation manners

[0056] Please refer to Figures 1 - 21 , the present invention provides a technical solution: a detachable chip collection tray injection molding device for a pet drying box, including a fixed mold 1 and a movable mold 2. A plurality of cores 11 are arranged on the fixed mold 1. The movable mold 2 is opened and closed through a driving component. The movable mold 2 includes a housing 3, a forming plate 4, a first telescopic member 501, side plates 5, a separating component and a stress adjusting member. The housing 3 is arranged directly above the fixed mold 1 and is lifted and lowered through the driving component. The forming plate 4 is located between the fixed mold 1 and the housing 3. The height of the mold cavity is adjusted through the first telescopic member 501 connected to the housing 3. The core 11 penetrates through the forming plate 4 and is slidably connected thereto. A plurality of side plates 5 are provided and are all slidably connected to the housing 3. When the plurality of side plates 5 are butted, they are used to seal the side surface of the housing 3. The separating component is used to control the simultaneous separation or butting of the side plates 5 and the housing 3;

[0057] The stress adjusting member is slidably connected to the side plate 5 and is used to adjust the stress when the height of the forming plate 4 is adjusted.

[0058] The stress adjusting member includes a support rod 6 slidably connected to the side plate 5. An insert rod 401 is slidably connected to the support rod 6. The insert rod 401 is slidably connected inside the side plate 5 and its bottom is fixedly connected to the forming plate 4

[0059] As Figures 1 - 5 , Figure 7 , Figures 10 - 12 shown:

[0060] The separating component controls the four side plates 5 to fit towards the housing 3 to form the movable mold 2. The driving component is used to control the relative movement of the movable mold 2 and the fixed mold 1 to complete the opening and closing of the mold;

[0061] When the four side plates 5 are in contact with the housing 3, they can clamp and seal the housing 3 and the forming plate 4. After the driving component controls the movable mold 2 and the fixed mold 1 to be closed, an injection cavity 24 is formed between the forming plate 4 and the inner cavity of the fixed mold 1, which is used for mass production of the chip collection tray 26 inside the drying box body 25 as shown in Figure 1 ;

[0062] When adjusting the height of the injection cavity 24, it can meet the thickness adjustment of the workpiece (chip collecting tray 26).

[0063] The adjustment work is as follows:

[0064] First, the separation component controls the four side plates 5 to move around the housing 3 and the forming plate 4 to complete the separation of the moving mold 2, avoiding large wear between the forming plate 4 and the side plates 5 when the height of the forming plate 4 is adjusted. When the four side plates 5 separate from the housing 3, they will slide along the housing 3 and drive the four support rods 6 to slide along the insertion rods 401. After the side plates 5 are separated from the forming plate 4, control the first telescopic member 501 to shorten (the first telescopic member 501 is an electric push rod or cylinder that can be wirelessly controlled in the prior art, and its telescopic control can be performed through a wireless remote control. Its installation and arrangement are conventional settings and will not be elaborated). Drive the forming plate 4 to rise vertically relative to the fixed mold 1 and slide upward relative to the multiple core pins 11. At this time, the distance between the bottom of the forming plate 4 and the inner cavity of the fixed mold 1 changes, while the bottom of the core pin 11 always fits with the inner cavity of the fixed mold 1, so that the height between the injection cavities 24 increases, and thus the thickness of the workpiece can be changed during subsequent production of the workpiece.

[0065] During the rising process of the forming plate 4, the insertion rods 401 will slide inside the four side plates 5 and drive the four support rods 6 to slide upward from the side walls of the side plates 5, so that the support rods 6 can continuously maintain on one side around the forming plate 4.

[0066] After the adjustment work is completed, the separation component controls the four side plates 5 to move to fit and clamp the housing 3 and the forming plate 4. After the side plates 5, the housing 3, and the forming plate 4 form the moving mold 2, the driving component can be used to drive the moving mold 2 and the fixed mold 1 to close the mold for the production of the workpiece.

[0067] To ensure the sealing performance of the moving mold 2, after the separation component drives the four side plates 5 to fit with the housing 3 and the forming plate 4, a large extrusion force will act on the forming plate 4. This extrusion force is applied from the side plates 5 to the forming plate 4. Especially when the forming plate 4 is at the top or bottom of the side plates 5 (i.e., far from the middle of the side plates 5), it is more likely to cause the side plates 5 to deform, and thus it is easy to cause the service life of the side plates 5 to be shortened and the sealing performance to decline after the forming plate 4 is used multiple times.

[0068] In the present invention, through the cooperation of the insertion rod 401 and the support rod 6, during the process of the forming plate 4 being driven by the first telescopic member 501 to move, the insertion rod 401 can drive the support rod 6 to slide along the side wall of the side plate 5, so that the support rod 6 can move along with the forming plate 4. Furthermore, when the side plate 5 clamps the housing 3 and the forming plate 4, the support rod 6 located on one side of the side plate 5 and capable of synchronously moving up and down with the forming plate 4 provides support. When the stress point changes due to the change in the height of the forming plate 4 during the extrusion of the forming plate 4 by the side plate 5, the support point changes synchronously, thereby providing protection during the extrusion of the forming plate 4 by the side plate 5, preventing the side plate 5 from deforming, making the stress on the forming plate 4 uniform after height adjustment, and improving the service life of the mold during the process of adjusting the thickness of the workpiece.

[0069] In the present invention, when the forming plate 4 moves for height adjustment, the support rod 6 is adjusted to a new stress point in real time, making the pressure distribution of the side plate 5 on the forming plate 4 uniform. The dynamic balance system composed of the insertion rod 401 and the support rod 6 enables the extrusion stress of the side plate 5 on the forming plate 4 to change with the height change, so as to avoid leakage caused by the deformation of the side plate 5 when the relative height of the forming plate 4 and the side plate 5 changes. When the four side plates 5 are closed for molding, the height change of the forming plate 4 is automatically compensated and sealed, and when producing workpieces of different thicknesses, there is no need to replace the template.

[0070] As a further aspect of the present invention, the four side plates 5 are all provided with integral reinforcing ribs 7, and the four support rods 6 respectively form sliding pairs with the four reinforcing ribs 7.

[0071] As Figures 2 - 5 and Figures 7 - 9 shown:

[0072] Through the provided reinforcing ribs 7, and during the process of the forming plate 4 adjusting its height, the insertion rod 401 will drive the support rod 6 to slide along the reinforcing ribs 7. The provided reinforcing ribs 7 are beneficial to enhancing the stability of the side plate 5.

[0073] As a further aspect of the present invention, the separation assembly includes rollers 8 respectively rotatably connected to the side walls of the front and rear side plates 5 and springs 9 sleeved on the sliding shafts of the two side plates 5 in the left - right direction. Second telescopic members 10 are fixedly connected between the two front - rear side plates 5 and the housing 3. When the second telescopic members 10 push the front - rear side plates 5 to slide along the housing 3 until the rollers 8 are separated from the left - right side plates 5, the springs 9 will respectively push the left - right side plates 5 to slide to the left and right sides to separate from the housing 3.

[0074] As Figures 4 - 5 and Figures 7 - 9 shown:

[0075] The elongation and shortening of the second telescopic member 10 drive the side plates 5 and the reinforcing ribs 7 of the front and rear items to move back and forth, and drive the roller 8 to move. When the roller 8 moves out of contact with the reinforcing ribs 7 on the other two sides, the spring 9 pushes the side plates 5 on the other two sides to slide along the housing 3. At this time, all four side plates 5 will be separated from the housing 3 and the forming plate 4. At this time, the height of the forming plate 4 is adjusted. After the adjustment is completed, the second telescopic member 10 pulls the side plates 5 in the front and rear directions towards the housing 3, as Figure 8 shown. When all four side plates 5 are separated from the housing 3, the displacement distance of the two side plates 5 in the front and rear directions is longer than that of the two side plates 5 in the left and right directions, and at this time, the two side plates 5 in the left and right directions are within the moving track range of the front and rear movement of the roller 8. When the roller 8 moves into contact with the side plates 5 in the left and right directions, it will push them to first press against the housing 3, and then the second telescopic member 10 continues to shorten, causing the roller 8 to move along the reinforcing ribs 7 on the side plates 5 in the left and right directions, so as to keep it in contact with the housing 3 (as Figure 9 shown), until the side plates 5 in the front and rear directions are in contact with the housing 3, and then the side plates 5 in the left and right directions, the housing 3, and the forming plate 4 are clamped and sealed at the same time.

[0076] As a further solution of the present invention, it further includes an adjustment assembly provided above the core 11. The adjustment assembly includes:

[0077] A plurality of laterally distributed positioning rods 12 are provided between the housing 3 and the forming plate 4;

[0078] A plurality of positioning members 13 provided on each positioning rod 12, and the core 11 is array-connected below the positioning members 13;

[0079] Among them, when the first telescopic member 501 drives the forming plate 4 to move, the core 11 slides relative to the forming plate 4 and remains in contact with the inner cavity of the fixed mold 1.

[0080] As Figure 3 , Figures 12 - 13 shown:

[0081] When the height of the forming plate 4 is adjusted, the positioning rod 12 and the positioning member 13 remain stationary relative to the forming plate 4 to limit the core 11, and then the forming plate 4 rises, causing the forming plate 4 to slide along the core 11, so that the bottom end of the core 11 continuously remains in contact with the inner cavity of the fixed mold 1.

[0082] As a further solution of the present invention, the positioning members 13 are all slidably connected to the positioning rods 12.

[0083] As Figures 12 - 13 shown:

[0084] When the core 11 is in an inclined state, the ventilation holes on the workpiece are inclined. When the forming plate 4 is adjusted in height, the positioning rod 12 remains stationary. At this time, as the forming plate 4 rises, it forces the core 11 to drive the positioning member 13 to slide along the positioning rod 12 through friction with the core 11, so that the bottom of the core 11 still keeps in contact with the inner cavity of the fixed mold 1 when the core 11 is inclined.

[0085] As a further solution of the present invention, the positioning rod 12 is slidably connected to the housing 3, and a third telescopic member 22 is provided between the two;

[0086] A plurality of lifting rods 14 are arranged in an array on the forming plate 4, and each lifting rod 14 is connected to the forming plate 4 through a fourth telescopic member 15;

[0087] A tapered first clamping plate 16 and a second clamping plate 17 are slidably connected to the middle of each lifting rod 14, and the two cooperate with the receiving groove 18 on the forming plate 4;

[0088] The first clamping plate 16 and the second clamping plate 17 are connected with a guiding member 19, and the guiding member 19 is provided with a guiding groove 20 with a vertical bottom and an inclined top;

[0089] Contact wheels 21 are arranged on both sides of the core 11, and the contact wheels 21 are rotatably connected to the lifting rods 14.

[0090] As a further solution of the present invention, both the first clamping plate 16 and the second clamping plate 17 are tapered.

[0091] As Figures 12 - 21 shown:

[0092] As Figure 18 shown, before the height of the forming plate 4 is adjusted, the height of the injection cavity 24 is L1 (that is, the distance between the forming plate 4 and the inner cavity of the fixed mold 1), and the distance between the positioning rod 12 and the forming plate 4 is L2. Then, the fourth telescopic member 15 and the third telescopic member 22 extend and shorten respectively. At this time, the positioning rod 12, the lifting rod 14 and the contact wheel 21 rise synchronously when the forming plate 4 is stationary. When the rising distance is L0, when the lifting rod 14 rises, it will drive the first clamping plate 16 and the second clamping plate 17 to slide up along the guiding groove 20 opened on the guiding member 19. When the first clamping plate 16 and the second clamping plate 17 slide in the vertical part of the guiding groove 20, the first clamping plate 16 and the second clamping plate 17 with tapered bottoms will keep clamping the core 11 and rise linearly along the receiving groove 18, so as to avoid the friction between the core 11 and the receiving groove 18. At this time, the core 11 will rise relative to the forming plate 4, thus avoiding direct friction with the forming plate 4;

[0093] After the first clamping plate 16 and the second clamping plate 17 slide to the inclined part above the guiding groove 20, the guiding of the inclined part will cause the first clamping plate 16 and the second clamping plate 17 to slide to both sides along the lifting rod 14 respectively, thereby separating the first clamping plate 16 and the second clamping plate 17 from the core 11. At this time, as Figure 19 shown, when the positioning rod 12 rises by a distance of L0, the distance between the bottom of the core 11 and the fixed mold 1 is L0, and the distance between the forming plate 4 and the fixed mold 1 is still L1. When the positioning rod 12 rises, the distance between it and the forming plate 4 is L1 + L0;

[0094] At this time, the first telescopic member 501 can drive the forming plate 4 to rise for height adjustment. When the forming plate 4 rises by a distance of a at this time, the forming plate 4 drives the lifting rod 14, the first clamping plate 16, the second clamping plate 17, the contact wheel 21 and the guiding member 19 to rise synchronously relative to the core 11, and when the contact wheel 21 provides support on both sides of the core 11, it pushes the core 11 and the positioning member 13 to slide along the positioning rod 12. The distance between the forming plate 4 and the positioning rod 12 is (L2 + L0) - a (as Figure 20 shown), and the distance between the forming plate 4 and the inner cavity of the fixed mold 1 is L1 + a, but the distance between the core 11 and the inner cavity of the fixed mold 1 is still L0. When the contact wheel 21 rises relative to the core 11, it will slide along the surface of the core 11 and push the core 11 and the positioning member 13 to slide along the positioning rod 12, so that when the height of the forming plate 4 changes relative to the core 11, the core 11 can adapt to the change of the forming plate 4;

[0095] As Figure 21 shown, after the forming plate 4 rises, the third telescopic member 22 and the first telescopic member 501 extend and contract respectively to drive the positioning rod 12, the lifting rod 14, the contact wheel 21, the first clamping plate 16 and the second clamping plate 17 to linearly descend relative to the forming plate 4. During the descending process of the lifting rod 14, the first clamping plate 16 and the second clamping plate 17 will gradually move towards the core 11 under the guiding of the upper inclined part of the guiding groove 20. When the first clamping plate 16 and the second clamping plate 17 clamp the core 11, they will vertically descend along the inclined part of the guiding groove 20 until the first clamping plate 16 and the second clamping plate 17 are inserted into the internal part of the receiving groove 18. At this time, the descending distance of the core 11 is L0. At this time, the distance between the forming plate 4 and the fixed mold 1 will increase to L1 + a, and the distance between the forming plate 4 and the positioning rod 12 will be reduced to L2 - a, thus completing the height adjustment;

[0096] It should be noted that when it is necessary to reduce the distance between the forming plate 4 and the cavity of the fixed mold 1, it is still necessary to first make the first telescopic member 501 and the third telescopic member 22 extend and contract, and then adjust the forming plate 4. After the adjustment of the forming plate 4 is completed, the first telescopic member 501 and the third telescopic member 22 directly insert the first clamping plate 16 and the second clamping plate 17 into the internal part of the receiving groove 18;

[0097] In the present invention, when the height of the forming plate 4 is adjusted, the first clamping plate 16 and the second clamping plate 17 drive the core 11 to separate from the forming plate 4 while keeping the core 11 clamped, avoiding direct friction between the core 11 and the forming plate 4. After the height of the forming plate 4 is adjusted, the core 11 is inserted into the receiving groove 18, so as to avoid friction between the core 11 and the forming plate 4 when the distance between the bottom of the core 11 and the inner cavity of the fixed mold 1 remains unchanged.

[0098] As a further aspect of the present invention, the width of the second clamping plate 17 is greater than that of the first clamping plate 16.

[0099] Such as Figure 15 and Figure 16 shown:

[0100] The second clamping plate 17 is larger than the first clamping plate 16, so that the corresponding position of the receiving groove 18 and the second clamping plate 17 is wider, and it can avoid rubbing against the core 11 during the rising process of the core 11.

[0101] As a further aspect of the present invention, the cores 11 are all connected to the positioning members 13 by bolts.

[0102] The cores 11 connected by bolts can be conveniently disassembled and connected to the positioning members 13, so as to achieve the purpose of convenient replacement. The bolts are common knowledge in the prior art, so they are not specifically shown.

[0103] As a further aspect of the present invention, the driving assembly includes a hydraulic rod 23 fixedly connected between the fixed mold 1 and the top of the housing 3.

[0104] Such as Figure 2 shown:

[0105] The driving of the hydraulic rod 23 drives the housing 3 to rise and fall, thereby completing mold opening and mold closing.

Claims

1. An injection molding device for a pet drying box with a detachable crumb collecting tray, comprising a fixed mold (1) and a movable mold (2), wherein the fixed mold (1) is provided with a plurality of cores (11), and the movable mold (2) is opened and closed by a driving component, wherein: The movable mold (2) comprises: a shell (3) disposed directly above the fixed mold (1) and lifted and lowered by a driving assembly; a molding plate (4) disposed between the fixed mold (1) and the shell (3), and realizing mold cavity height adjustment by a first telescopic member (501) connected to the shell (3); the mold core (11) passes through the molding plate (4) and is slidably connected thereto; a plurality of side plates (5) are provided and are all slidably connected to the shell (3); the plurality of side plates (5) are used to seal the side surface of the shell (3) when they are butt-jointed; a separation assembly for controlling the simultaneous separation or butt-jointing of the side plates (5) and the shell (3); and a stress adjustment member slidably connected to the side plates (5) and used to realize stress adjustment when the molding plate (4) is height-adjusted; The stress adjustment member comprises a support rod (6) slidably connected to the side plate (5); the support rod (6) is slidably connected to an insertion rod (401); the insertion rod (401) is slidably connected inside the side plate (5) and its bottom is fixedly connected to the forming plate (4); The molding plate (4) is provided with a plurality of lifting rods (14) distributed in an array, and each lifting rod (14) is connected to the molding plate (4) via a fourth telescopic member (15); a conical first clamping plate (16) and a second clamping plate (17) are slidably connected in the middle of each lifting rod (14), and the two clamping plates cooperate with a receiving groove (18) on the molding plate (4); the first clamping plate (16) and the second clamping plate (17) are connected with a guide member (19), and the guide member (19) is provided with a guide groove (20) with a vertical bottom and an inclined top; contact wheels (21) are provided on both sides of the core (11), and the contact wheels (21) are rotatably connected to the lifting rod (14).

2. The injection molding device for a pet drying box with a detachable crumb collecting tray according to claim 1, characterized in that: The side plates (5) are each provided with an integral reinforcing rib (7), and the support rods (6) are respectively slidably connected to the reinforcing rib (7).

3. The injection molding device for a pet drying box with a detachable crumb collecting tray according to claim 2, characterized in that: The separation component comprises rollers (8) rotatably connected to the side walls of the front and rear side plates (5) and springs (9) sleeved on the sliding shafts of the two side plates (5) in the left and right directions. A second telescopic member (10) is fixedly connected between the two front and rear side plates (5) and the housing (3). When the second telescopic member (10) pushes the front and rear side plates (5) to slide along the housing (3) until the rollers (8) are separated from the left and right side plates (5), the springs (9) push the left and right side plates (5) to slide to the left and right sides respectively to separate from the housing (3).

4. The injection molding device for a pet drying box with a detachable crumb collecting tray according to claim 1, characterized in that: The mold mold (11) further comprises an adjustment component disposed above the mold core (11), the adjustment component comprising: a plurality of laterally distributed positioning rods (12) disposed between the shell (3) and the molding plate (4); a plurality of positioning members (13) disposed on each positioning rod (12), the mold core (11) being connected in an array below the positioning members (13); wherein when the first telescopic member (501) drives the molding plate (4) to move, the mold core (11) slides relative to the molding plate (4) and maintains contact with the inner cavity of the fixed mold (1).

5. The injection molding device for a pet drying box with a detachable crumb collecting tray according to claim 4, characterized in that: The positioning members (13) are all slidably connected to the positioning rods (12).

6. The injection molding device for a pet drying box with a detachable crumb collecting tray according to claim 5, characterized in that: The positioning rod (12) is slidably connected to the housing (3), and a third telescopic member (22) is provided between the two.

7. The injection molding device for a pet drying box with a detachable crumb collecting tray according to claim 1, characterized in that: The first clamping plate (16) and the second clamping plate (17) are both conical, and the second clamping plate (17) is wider than the first clamping plate (16).

8. The injection molding device for a pet drying box with a detachable crumb collecting tray according to claim 1, characterized in that: The cores (11) are connected to the positioning members (13) via bolts.

9. The injection molding device for a pet drying box with a detachable crumb collecting tray according to claim 1, characterized in that: The driving assembly comprises a hydraulic rod (23) fixedly connected between the fixed die (1) and the top of the housing (3).

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