Cartridge demolding device

Abstract

A drug cartridge demolding device includes a demolding mechanism comprising a top cover demolding mechanism, a base mandrel assembly demolding mechanism, and a product clamping mechanism located between the top cover demolding mechanism and the base mandrel assembly demolding mechanism. The base mandrel assembly demolding mechanism includes a base plate and a lower servo cylinder. A product infeed / outfeed slide is mounted on the base plate, and a product loading positioning seat and a positioning seat are mounted on the slide. A product infeed / outfeed slide cylinder is connected to the side of the slide, and the bottom of the slide is mounted on a linear guide rail. The product clamping mechanism includes two symmetrically arranged product housing clamping cylinders. A left clamping block is mounted on the piston rod of one product housing clamping cylinder, and a right clamping block is mounted on the piston rod of the other product housing clamping cylinder. This invention increases the operating space for manual loading and unloading of products by utilizing the forward and backward displacement function of the product infeed / outfeed slide. By arranging the product infeed / outfeed slide and the product clamping mechanism one above the other, it reduces operational risks and improves safety during use.

Description

Technical Field

[0001] This utility model belongs to the field of solid propellant grains, specifically relating to a grain demolding device. Background Technology

[0002] Propellant grains are propulsion components made of solid propellant in solid rocket engines. After the propellant has solidified, removing the core mold inside the combustion chamber or demolding the propellant grain from the mold is called demolding. Chinese Patent (Announcement No.: CN215397182 U, Publication Date: 2022.01.04) discloses an automatic demolding device, such as... Figure 1 In use, the mold is placed on the upper end of the support plate 19 in the placement groove 21. The pushing mechanism drives the connecting block 20 and the limiting ring 12 to rotate, thereby engaging with the fixing ring 11. Specifically, the pushing cylinder 25 drives the connecting piece 24 and the horizontal connecting rod 23 to push and retract, thereby engaging and disengaging the limiting ring 12 with the fixing ring 11, thus fixing the mold on the support plate 19. The pushing cylinder 25 is located on the side of the placement groove 21, resulting in a small operating space for loading and unloading. During the loading and unloading operation, if the pushing cylinder 25 malfunctions, it will pose a risk to the operator during the loading and unloading process. Summary of the Invention

[0003] The purpose of this utility model is to overcome the above-mentioned shortcomings of the prior art and provide a drug column demolding device. By increasing the operating space for manual loading and unloading of products through the forward and backward displacement function of the product entry and exit slide, the product entry and exit slide and the product clamping mechanism are arranged one above the other to reduce the operation risk and improve the safety of the use process.

[0004] The technical solution of this utility model is: a drug cartridge demolding device, comprising a demolding device, wherein the demolding device includes an upper cover demolding mechanism, a base mandrel assembly demolding mechanism, and a product clamping mechanism located between the upper cover demolding mechanism and the base mandrel assembly demolding mechanism; the upper cover demolding mechanism includes an upper plate, a gripper mounted below the upper plate, and an upper servo cylinder for driving the upper plate to move up and down; the base mandrel assembly demolding mechanism includes a base plate, a lower servo cylinder for driving the base plate to move up and down, and a product entry / exit slide is mounted on the base plate. The product entry and exit slide is equipped with a product loading positioning seat for positioning the medicine column to be demolded and a positioning seat for positioning the medicine column after demolding. The side of the product entry and exit slide is connected to the product entry and exit slide cylinder, and the bottom of the product entry and exit slide is mounted on a linear guide rail. The product clamping mechanism includes two symmetrically arranged product shell clamping cylinders. A left clamping block is mounted on the piston rod of one product shell clamping cylinder, and a right clamping block is mounted on the piston rod of the other product shell clamping cylinder. When the left clamping block and the right clamping block are connected, they form a complete clamping block for clamping the product shell.

[0005] The product loading positioning seat is located in front of the positioning seat; the product loading positioning seat includes an arc-shaped card seat, and a movable baffle is installed at the front entrance of the arc-shaped card seat.

[0006] The upper part of the inner ring of the arc-shaped card holder has a flange extending radially inward, and the lower part of the outer ring of the arc-shaped card holder has an outer edge extending radially outward. The pressure block for fixing the arc-shaped card holder is detachably mounted on the product entry and exit slide by bolts. The lower part of the pressure block has a locking slot that engages with the outer edge. There are three pressure blocks, two of which are arranged on both sides of the front entrance of the arc-shaped card holder, and the third pressure block is arranged in the middle of the outer ring of the arc-shaped card holder.

[0007] The right end of the movable stop bar is hinged to the bearing seat via a shaft.

[0008] The upper plate and the bottom plate are guided in the direction of movement by the guide rod assembly; the guide rod assembly includes four vertically arranged guide rods, each guide rod including a fixed rod and two guide sleeves that are sleeved on the fixed rod and can slide up and down along the fixed rod; the guide sleeves located on the upper part of each fixed rod are fixed to the upper plate, and the guide sleeves located on the lower part of each fixed rod are fixed to the bottom plate.

[0009] The mounting plate used to fix the upper servo cylinder is fixed to the top of each fixing rod.

[0010] The lower servo electric cylinder is placed inside the test bench; the bottom ends of each fixing rod are fixed to the top of the test bench.

[0011] The platform is equipped with a safety door on the side, and a protective frame surrounds the top of the platform, with the front of the protective frame open.

[0012] The product clamping mechanism also includes a guide rod assembly for guiding the movement direction of the left and right clamping blocks; the guide rod assembly includes four horizontally arranged guide rods, each guide rod including a fixed rod and two guide sleeves that are sleeved on the fixed rod and can slide left and right along the fixed rod; the piston rod of the product housing clamping cylinder is fixed to the outside of the clamping plate, and the inside of the clamping plate is connected to the guide sleeves; the cylinder body of the product housing clamping cylinder is fixed to the support on the frame via lugs; the mating surfaces of the left and right clamping blocks have positioning pins and positioning pin holes.

[0013] The gripper is a pneumatic three-jaw gripper.

[0014] This invention adopts a vertical demolding structure, with explosion-proof servo electric cylinders driving the demolding process. Product positioning and clamping utilizes a dual-cylinder driven clamping structure, ensuring stable and reliable clamping. The design of the product entry / exit slide table moves the material loading and unloading operations to the side of the clamping station, increasing the operating space for manual loading and unloading and facilitating these operations. Furthermore, the lower servo electric cylinder is placed inside the frame, effectively utilizing the frame space, reducing the overall height of the device, and improving stability during use. Attached Figure Description

[0015] Figure 1 This is a structural diagram of existing technology;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model;

[0017] Figure 3 This is a three-dimensional view of the demolding device;

[0018] Figure 4 This is the front view of the demolding device;

[0019] Figure 5 This is a side view of the demolding device;

[0020] Figure 6 This is a magnified view of a portion of the demolding device. Detailed Implementation

[0021] Figure 2-6 The present invention includes a demolding device 200 and a platform 100. A lower servo cylinder 207 is placed inside the platform 100. The platform 100 has clearance holes that cooperate with the piston rod of the lower servo cylinder 207. The bottom ends of each guide rod are fixed to the platform 100. A safety door 101 is installed on the side of the platform 100, and a protective frame 300 surrounds the upper perimeter of the platform 100. The front of the protective frame 300 is open.

[0022] The upper cover demolding mechanism includes an upper plate 210, a gripper mounted under the upper plate 210, and an upper servo electric cylinder 201 for driving the upper plate 210 to move up and down.

[0023] The base mandrel assembly demolding mechanism includes a base plate 208 and a lower servo electric cylinder 207 for moving the base plate 208 up and down. A product loading / unloading slide 204 is mounted on the base plate 208. The product loading / unloading slide 204 is equipped with a product loading positioning seat 206 for positioning the demolded drug column and a positioning seat 209 for positioning the demolded drug column. A product loading / unloading slide cylinder 205 is connected to the side of the product loading / unloading slide 204, and the bottom of the product loading / unloading slide 204 is mounted on a linear guide rail. The product loading positioning seat 206 is located in front of the positioning seat 209. The product loading positioning seat 206 includes an arc-shaped retainer 213, and a movable stop bar 212 is installed at the front entrance of the arc-shaped retainer 213. The upper part of the inner ring of the arc-shaped retainer 213 has a flange extending radially inward, and the lower part of the outer ring of the arc-shaped retainer 213 has an outer edge extending radially outward. A pressure block 214 for fixing the arc-shaped retainer 213 is detachably mounted on the product inlet / outlet slide 204 via bolts. The lower part of the pressure block 214 has a locking slot that engages with the outer edge. There are three pressure blocks: two are located on either side of the front entrance of the arc-shaped retainer 213, and the third is located in the middle of the outer ring of the arc-shaped retainer 213. The right end of the movable stop bar 212 is hinged to the shaft seat 2121 via a shaft. During loading, the movable stop bar 212 is opened, and the demolding cartridge slides from the entrance along the product inlet / outlet slide 204 into the arc-shaped retainer 213. The movable stop bar 212 is then closed, and the demolding cartridge is positioned.

[0024] The product clamping mechanism includes two symmetrically arranged product housing clamping cylinders 203. A left clamping block is mounted on the piston rod of one product housing clamping cylinder 203, and a right clamping block is mounted on the piston rod of the other product housing clamping cylinder 203. When the left and right clamping blocks are aligned, they form a complete clamping block for clamping the product housing.

[0025] Pressure sensors 216 are installed between the piston rod of the lower servo cylinder 207 and the base plate 208, and between the upper plate 210 and the piston rod of the upper servo cylinder 201, to monitor the force during the demolding process.

[0026] The upper plate 210 and the bottom plate 208 are guided in the direction of movement by a guide rod assembly. The guide rod assembly includes four vertically arranged guide rods, each guide rod including a fixed rod and two guide sleeves that are fitted over the fixed rod and can slide up and down along the fixed rod. The guide sleeves located at the upper part of each fixed rod are fixed to the upper plate 210, and the guide sleeves located at the lower part of each fixed rod are fixed to the bottom plate 208. A mounting plate 211 for fixing the upper servo cylinder 201 is fixed to the top of each fixed rod. A connecting rod receiving plate 400 is provided on the side of the upper servo cylinder 201. The connecting rod receiving plate 400 includes a receiving plate and a connecting rod assembly connected to the receiving plate.

[0027] Operating steps:

[0028] 1) Under the action of the product inlet and outlet slide 204 cylinder 205, the product inlet and outlet slide 204 moves forward along the linear guide to the loading position. The movable stop bar 212 is opened, and the demolding column after the rubber sleeve and diaphragm are removed is manually slid from the inlet along the product inlet and outlet slide 204 into the arc-shaped card seat 213 of the product loading positioning seat 206. The movable stop bar 212 is closed, and the demolding column is positioned.

[0029] 2) Under the action of the product entry / exit slide cylinder 205, the product entry / exit slide 204 moves backward along the linear guide rail to the demolding position; the lower servo electric cylinder 207 moves upward to the clamping position;

[0030] 3) The working charge is automatically positioned and clamped in the product housing clamping cylinder 203 of the product clamping mechanism;

[0031] 4) The connecting rod assembly of the connecting rod receiving plate 400 drives the receiving plate to move backward to make room, the pneumatic three-jaw 217 of the upper cover demolding mechanism moves down to the periphery of the upper cover of the medicine column to be demolded, the pneumatic three-jaw 217 closes to clamp the upper cover, the upper servo electric cylinder 201 of the upper cover demolding mechanism drives the pneumatic three-jaw 217 to move up, the connecting rod receiving plate 400 resets, and the upper cover falls onto the connecting rod receiving plate 400;

[0032] 5) The lower servo cylinder 207 drives the base plate 208 to move down, and the product loading positioning seat 206 drives the base and mandrel assembly of the medicine column to be demolded to move down to the set height. Under the action of the product loading and unloading slide cylinder 205, the product entry and exit slide 204 moves forward along the linear guide rail to the positioning seat 209 to correspond with the shell of the demolded medicine column. The lower servo cylinder 207 drives the base plate 208 to move up to the receiving position. The product shell clamping cylinder 203 releases the demolded medicine column. The bottom of the demolded medicine column is positioned by the positioning seat 209.

[0033] 6) The lower servo cylinder 207 moves down to the set height again, and the product entry / exit slide 204 moves forward along the linear guide to the unloading position under the action of the product entry / exit slide cylinder 205;

[0034] 7) Manually remove the cartridge, base, core rod assembly, and top cover and place them properly;

[0035] 8) End the single-shot demolding operation.

Claims

1. A cartridge demolding apparatus characterized by comprising: Includes a demolding device (200), which includes a top cover demolding mechanism, a base mandrel assembly demolding mechanism, and a product clamping mechanism located between the top cover demolding mechanism and the base mandrel assembly demolding mechanism; The upper cover demolding mechanism includes an upper plate (210), a gripper mounted under the upper plate (210), and an upper servo electric cylinder (201) for driving the upper plate (210) to move up and down. The base core rod assembly demolding mechanism includes a base plate (208) and a lower servo electric cylinder (207) for driving the base plate (208) to move up and down. The base plate (208) is equipped with a product entry and exit slide (204). The product entry and exit slide (204) is equipped with a product loading positioning seat (206) for positioning the medicine column to be demolded and a positioning seat (209) for positioning the medicine column after demolding. The side of the product entry and exit slide (204) is connected to a product entry and exit slide cylinder (205). The bottom of the product entry and exit slide (204) is mounted on a linear guide rail. The product clamping mechanism includes two symmetrically arranged product housing clamping cylinders (203). A left clamping block is mounted on the piston rod of one product housing clamping cylinder (203), and a right clamping block is mounted on the piston rod of the other product housing clamping cylinder (203). When the left and right clamping blocks are connected, they form a complete clamping block for clamping the product housing.

2. The cartridge de-molding apparatus of claim 1, wherein: The product loading positioning seat (206) is located in front of the positioning seat (209); the product loading positioning seat (206) includes an arc-shaped card seat (213), and a movable baffle (212) is installed at the front entrance of the arc-shaped card seat (213).

3. The cartridge de-molding apparatus of claim 2, wherein: The upper part of the inner ring of the arc-shaped card holder (213) has a flange extending inward along the radial direction, and the lower part of the outer ring of the arc-shaped card holder (213) has an outer edge extending outward along the radial direction. The pressure block (214) used to fix the arc-shaped card holder (213) is detachably mounted on the product entry and exit slide (204) by bolts. The lower part of the pressure block (214) has a locking slot that engages with the outer edge. There are three pressure blocks, two of which are arranged on both sides of the front entrance of the arc-shaped card holder (213), and the third pressure block is arranged in the middle of the outer ring of the arc-shaped card holder (213).

4. The cartridge unloader of claim 2, wherein: The right end of the movable stop bar (212) is hinged to the bearing seat (2121) via a shaft.

5. The cartridge unloader of claim 1, wherein: The upper plate (210) and the bottom plate (208) are guided in the direction of movement by the guide rod assembly; The guide rod assembly includes four vertically arranged guide rods. Each guide rod includes a fixed rod and two guide sleeves that are fitted over the fixed rod and can slide up and down along the fixed rod. The guide sleeves located on the upper part of each fixed rod are fixed to the upper plate (210), and the guide sleeves located on the lower part of each fixed rod are fixed to the bottom plate (208).

6. The cartridge unloader of claim 5, wherein: The mounting plate (211) for fixing the upper servo electric cylinder (201) is fixed to the top of each fixing rod.

7. The drug column demolding device according to claim 5, characterized in that: The lower servo electric cylinder (207) is placed inside the frame (100); the bottom ends of each fixing rod are fixed to the frame (100).

8. The cartridge unloader of claim 7, wherein: The platform (100) is equipped with a safety door (101) on its side, and a protective frame (300) surrounds the top of the platform (100), with the front of the protective frame (300) open.

9. The cartridge unloader of claim 1, wherein: The product clamping mechanism also includes a guide rod assembly for guiding the movement direction of the left and right clamping blocks; the guide rod assembly includes four horizontally arranged guide rods, each guide rod including a fixed rod and two guide sleeves that are sleeved on the fixed rod and can slide left and right along the fixed rod; the piston rod of the product housing clamping cylinder (203) is fixed to the outside of the clamping plate, and the inside of the clamping plate is connected to the guide sleeve; the cylinder body of the product housing clamping cylinder (203) is fixed to the support on the frame (100) via the lug; the mating surfaces of the left and right clamping blocks have positioning pins (2031) and positioning pin holes (2032).

10. The cartridge unloader of claim 1, wherein: The gripper is a pneumatic three-jaw gripper (217).

Images